An aluminum alloy heat exchanger is produced by applying a coating material that is prepared by adding a binder to a mixture of an Si powder and a Zn-containing compound flux powder to a surface of an aluminum alloy refrigerant tube, assembling a bare fin that is formed of an Al—Mn—Zn alloy with the refrigerant tube, and brazing the refrigerant tube and the bare fin by heating in an atmosphere-controlled furnace, the refrigerant tube being an extruded product of an aluminum alloy that comprises 0.5 to 1.7% (mass %, hereinafter the same) of Mn, less than 0.10% of Cu, and less than 0.10% of Si, with the balance being Al and unavoidable impurities.
B21D 53/06 - Making other particular articles heat exchangers, e.g. radiators, condensers of metal tubes
B23K 35/28 - Selection of soldering or welding materials proper with the principal constituent melting at less than 950°C
B23K 35/36 - Selection of non-metallic compositions, e.g. coatings, fluxesSelection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
Provided is an aluminum alloy brazing sheet which uses an aluminum alloy containing Mg as the core material and enables brazing in an inert gas atmosphere without using a flux. This aluminum alloy brazing sheet is characterized by being obtained by cladding an Al-Si system aluminum alloy brazing material on one surface or both surfaces of an aluminum alloy core material, with an aluminum alloy intermediate material being interposed therebetween. This aluminum alloy brazing sheet is also characterized in that: the core material is formed of an aluminum alloy that contains 0.1-1.3% of Mg; the brazing material is formed of an Al-Si system aluminum alloy that contains 6-13% of Si; the intermediate material is formed of an aluminum alloy that contains less than 6% of Si; the interface between the brazing material and the intermediate material internally contains a Cs-containing fluoride flux that contains 5-60% by mole of CsF, with the balance made up of a K-Al-F system compound; some or all of the flux is once molten and then solidified; and if x (%) is the Mg amount contained in the core material and y (mm) is the thickness of the intermediate material, the relationship between the Mg amount contained in the core material and the thickness of the intermediate material satisfies the following formula. y (mm) ≥ 0.007 ln(x) + 0.018 (In this connection, ln represents the natural logarithm.)
B23K 35/14 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape not specially designed for use as electrodes for soldering
B23K 35/22 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
B23K 35/28 - Selection of soldering or welding materials proper with the principal constituent melting at less than 950°C
B23K 35/363 - Selection of compositions of fluxes for soldering or brazing
B23K 35/40 - Making wire or rods for soldering or welding
A heat release member (1) is configured such that a metallic plate (10), which is bent along folding starting lines (11) into a corrugated shape, is disposed such that the folding starting lines (11) are aligned in the axial direction and so that the entire metallic plate (10) has a cylindrical shape. The heat release member (1) has fin sections (13) which are arranged radially in the radial direction of the cylindrical shape. Adjacent fin sections (13) are connected to each other on the inner peripheral side (101) and the outer peripheral side (102) of the cylindrical shape. The heat release member (1) has a joining end (12) at one end (115) in the axial direction (X) of the cylindrically shaped heat release member (1). The heat release member (1) is used while the joining end (12) side is joined to a heat generation member.
A raised and recessed sheet material having extremely high stiffness, and useful vehicle panel and laminated structure using the same. The surface of the sheet is formed by a plurality of squares arranged in two mutually perpendicular directions, and has a raised and recessed pattern. A basic configuration A, where first regions M and a Z-shaped second region N are formed in the square, and basic configurations B to D derived from the basic configuration A are butted together at their peripheral edges such that first regions M having those peripheral edges are butted together and the second regions N having those peripheral edges are butted together. The raised and recessed pattern is formed by upwardly raising the first regions M and downwardly recessing the second regions N, or upwardly raising or downwardly recessing either one or both of the first and second regions M and N.
This invention makes it possible, when manufacturing an aluminum clad material by hot-clad-rolling, to significantly enhance adhesion performance irrespective of the clad rate. A method for manufacturing an aluminum clad material by cladding a skin material on one or both sides of a core material made from aluminum (including an aluminum alloy), the method being characterized in: interposing and laminating, between the skin material and the core material to be cladded, a metal plate material or powder having a lower solidus temperature than that of the core material or that of the skin material, performing heating to a temperature equal to or higher than the solidus temperature of the metal plate material, thereby generating a liquid phase in the metal plate material or powder and bonding the core material and the skin material in a plane form, and subsequently performing hot clad rolling.
An aluminum alloy sheet that exhibits excellent surface quality after anodizing, includes a peritectic element that undergoes a peritectic reaction with at least aluminum, and requires an anodic oxide coating is characterized in that the concentration of the peritectic element in a solid-solution state that is present in the outermost surface area of the aluminum alloy sheet varies in the widthwise direction of the aluminum alloy sheet in the form of a band having a width of 0.05 mm or less, and the difference in the concentration of the peritectic element between adjacent bands is 0.008 mass % or less.
C22C 21/06 - Alloys based on aluminium with magnesium as the next major constituent
B21B 1/26 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling bands or sheets of indefinite length in a continuous process by hot-rolling
C25D 11/04 - Anodisation of aluminium or alloys based thereon
C22C 21/14 - Alloys based on aluminium with copper as the next major constituent with silicon
C22C 21/16 - Alloys based on aluminium with copper as the next major constituent with magnesium
C22F 1/047 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent
C22F 1/057 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with copper as the next major constituent
7.
Sheet material having a concave-convex part, and vehicle panel and laminated structure using the same
A sheet material (1) includes a stiffness-increasing concave-convex part (20). A first reference plane (K1), an intermediate reference plane (K3), and a second reference plane (K2) serve as a reference system. The intermediate reference plane is partitioned by first lattice straight lines (L1), second lattice straight lines (L2), and third lattice straight lines (L3) so as to define hexagonal unit areas (24) and triangular unit areas (25) in the intermediate reference plane. Areas that include a plurality of the hexagonal unit areas and the triangular unit areas are designated as first, second and third reference areas (214, 224, 234), respectively. Combinations thereof constitute new first, second and third reference areas (213, 223, 233), respectively. The concave-convex part includes first areas (21) and second areas (22), which respectively include the new first reference areas and the new second reference areas, and third areas (23), which include the new third reference areas.
B62D 25/00 - Superstructure sub-unitsParts or details thereof not otherwise provided for
B21D 13/10 - Corrugating sheet metal, rods or profiles, or bending sheet metal, rods or profiles into wave form into a peculiar profiling shape
B21D 47/00 - Making rigid structural elements or units, e.g. honeycomb structures
E04C 2/32 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure formed of corrugated or otherwise indented sheet-like materialBuilding elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of such layers with or without layers of flat sheet-like material
B32B 3/28 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer comprising a deformed thin sheet, e.g. corrugated, crumpled
The present invention provides an aluminum-alloy brazing sheet that encloses a flux. Said brazing sheet is used in a heat exchanger that is brazed by heating without the application of flux in an inert-gas atmosphere. This brazing sheet is characterized by comprising a core material, one or both surfaces of which are clad in an Al-Si aluminum-alloy brazing filler that contains 6-13% silicon. This brazing sheet is further characterized in that: a mixture of a fluoride flux and a metal powder with a solidus temperature less than or equal to 565°C is enclosed at the interface(s) between the core material and the brazing filler; and some or all of said mixture is subjected to melting and then solidification. This brazing sheet does not hamper hot rollability, and the problem of flux flying about and getting on equipment during hot rolling is also avoided.
B23K 35/14 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape not specially designed for use as electrodes for soldering
B23K 1/00 - Soldering, e.g. brazing, or unsoldering
B23K 1/19 - Soldering, e.g. brazing, or unsoldering taking account of the properties of the materials to be soldered
B23K 35/40 - Making wire or rods for soldering or welding
F28F 21/08 - Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
12.
ALUMINUM-ALLOY BRAZING SHEET, MANUFACTURING METHOD THEREFOR, AND BRAZING METHOD FOR ALUMINUM HEAT EXCHANGER
The present invention provides an aluminum-alloy brazing sheet that encloses a flux. Said brazing sheet is used in a heat exchanger that is brazed by heating without the application of flux in an inert-gas atmosphere. This brazing sheet is characterized by comprising a core material, one or both surfaces of which are clad in an Al-Si aluminum-alloy brazing filler that contains 6-13% silicon. This brazing sheet is further characterized in that a fluoride flux is enclosed at the interface(s) between the core material and the brazing filler and some or all of said flux is subjected to melting and then solidification. This brazing sheet does not hamper hot rollability, and the problem of flux flying about and getting on equipment during hot rolling is also avoided.
B23K 35/14 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape not specially designed for use as electrodes for soldering
B23K 1/00 - Soldering, e.g. brazing, or unsoldering
B23K 1/19 - Soldering, e.g. brazing, or unsoldering taking account of the properties of the materials to be soldered
B23K 35/40 - Making wire or rods for soldering or welding
F28F 21/08 - Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
13.
ALUMINUM ALLOY FIN MATERIAL FOR HEAT EXCHANGER OFFERING EXCELLENT POST-BRAZING STRENGTH AND CORROSION RESISTANCE
An aluminum alloy fin material for a heat exchanger offering excellent post-brazing strength and corrosion resistance, the aluminum alloy fin material containing 1.0 to 2.0 mass% Mn, 0.5 to 1.3 mass% Si, 0.1 to 0.8 mass% Fe, greater than 0.20 and up to 0.4 mass% Cu, and 1.1 to less than 2.0 mass% Zn, the remainder comprising Al and inevitable impurities; characterized in that the matrix of the aluminum alloy fin material is a recrystallized structure. According to the present invention, there can be provided an aluminum alloy fin material for a heat exchanger offering excellent brazability and post-brazing strength, and also excellent intergranular corrosion resistance.
An aluminum alloy material is welded by performing friction stir welding to form a welded section in an aluminum alloy welded component. The aluminum alloy material contains Mg: 0.3-6.0% (mass %, hereinafter the same), Cu: 0.2% or less, Si: 0.1% or less, Fe: 0.1% or less, the balance being Al and inevitable impurities. Second phase particles dispersed in the aluminum alloy material have a grain size of 5 μm or less as observed with an optical microscopic. Because the second phase particles are homogeneously dispersed in a welded section equivalent portion of the aluminum alloy welded component as compared to other portions, variations in pit formation caused by etching during anodizing are reduced, thereby eliminating color tone variations in the anodized coating formed on the aluminum alloy welded component.
B32B 15/04 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance
C22C 21/06 - Alloys based on aluminium with magnesium as the next major constituent
B23K 20/12 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by frictionFriction welding
B23K 20/233 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded without ferrous layer
The present invention has a chemical composition comprising, by mass%, 5.0-6.5% inclusive of Zn, at least 0.50% and less than 1.0% of Mg, less than 0.20% of Cu, no greater than 0.30% of Fe, no greater than 0.30% of Si, less than 0.05% of Mn, less than 0.05% of Cr, at least 0.05% and less than 0.20% of Zr, and 0.001-0.05% inclusive of Ti, the remainder comprising Al and unavoidable impurities. The present invention comprises a fibrous structure having a yield strength of at least 300 MPa and an average value of the width of each fibrous crystal grain of at least 30 μm.
C22F 1/053 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with zinc as the next major constituent
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
17.
HIGH-STRENGTH ALUMINUM ALLOY MATERIAL FOR ANODIZATION
The present invention has chemical components comprising, by mass%, over 7.2% and no greater than 8.7% of Zn, 1.3-2.1% inclusive of Mg, less than 0.20% of Cu, no greater than 0.30% of Fe, no greater than 0.30% of Si, less than 0.05% of Mn, no greater than 0.20% of Cr, less than 0.05% of Zr, and 0.001-0.05% inclusive of Ti, the remainder being Al and unavoidable impurities. The present invention has a yield strength of at least 350 MPa, the metal structure comprises a recrystallized structure, the average grain size of the crystal grains thereof is no greater than 500 μm, and the crystal grain length in the direction parallel to the direction of hot working is 0.5-4 times the crystal grain length in the direction perpendicular to the direction of hot working.
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
C22F 1/053 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with zinc as the next major constituent
18.
Sheet material having concave-convex section, and laminated structure and vehicle panel using the same
Within an area of substantially regular hexagons arranged at regular intervals on an imaginary reference plane, a sheet material includes a concave-convex section (20) having a basic pattern in which one first region (A1) is surrounded by six second regions (A2). This basic pattern repeats in regular intervals in lateral and longitudinal directions of the sheet material. The concave-convex section includes first protruding portions (21) and second protruding portion (22), which protrude in opposite directions from each other in the thickness direction in the first regions and the second regions, respectively. The first and second protruding portions may have a hexagonal pyramidal shape or a truncated hexagonal pyramidal shape.
B32B 3/26 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids
B21D 13/10 - Corrugating sheet metal, rods or profiles, or bending sheet metal, rods or profiles into wave form into a peculiar profiling shape
B21D 47/00 - Making rigid structural elements or units, e.g. honeycomb structures
B32B 3/28 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer comprising a deformed thin sheet, e.g. corrugated, crumpled
B32B 3/30 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer formed with recesses or projections, e.g. grooved, ribbed
A heat dissipating member (1) in an LED lamp in which an LED element is housed. The heat dissipating member (1) is formed by press-forming an aluminum alloy sheet to form a substantially conical shape. The aluminum alloy sheet is preferably a pre-coated aluminum alloy sheet formed by pre-coating one or both sides of an aluminum alloy sheet substrate with a synthetic resin coating film (21) containing a heat-dissipating substance. The synthetic resin coating film (21) preferably contains one or more substances selected from the group consisting of titanium oxide, carbon, silica, and zirconium oxide as the heat-dissipating substance.
Provided is an aluminum alloy foil for lithium ion battery electrode current collectors that exhibits high strength and low electrical resistance, and is characterized by: having a composition containing Mn in the amount of 0.4% or more and less than 0.8%, Mg in the amount of 0.3% or more and 0.8% or less, Si in the amount of 0.4% or less, Fe in the amount of 0.8% or less, and Ti in the amount of 0.5% or less, satisfying a relationship (Mn%+4xMg%≤3.2%) pertaining to the amounts of Mn and Mg contained therein, and having Al and inevitable impurities constitute the remainder thereof; the tensile strength thereof being 300MPa or greater; and the specific resistance value thereof at room temperature being 3.7μΩcm or less.
C22C 21/06 - Alloys based on aluminium with magnesium as the next major constituent
C22F 1/04 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
A plate material (1) endowed with increased rigidity by the formation of a concavo-convex part (20). A first reference plane (K1), an intermediate reference plane (K3), and a second reference plane (K2) are used as a reference. First unit areas (241) and second unit areas (242) are laid out over the entire intermediate reference plane (K3). The square parts possessed by the first unit areas (241) and the second unit areas (242) are classified into first squares (243) and second squares (244). The areas composed of adjacent first squares (243) are first reference areas (213), and the areas composed of adjacent second squares (244) are first reference areas (223). The concavo-convex part (20) is formed by first areas (21) formed on the basis of the first reference areas (213), and by second areas (22) and/or planar areas (23) formed on the basis of the second reference areas (223).
Provided are a plate material having a concavo-convex pattern that exhibits an extremely high rigidity improvement effect, as well as a useful vehicle panel and laminated structure that use such a plate material. The plate material has numerous imaginary squares that are vertically and horizontally combined to constitute a plate surface and to form concavo-convex shapes on the plate surface, wherein a basic shape (A) in which a first region (M) and a Z-shaped second region (N) are formed in the imaginary squares, and a plurality of shapes from among basic shapes (B to D) derived from the basic shape A, are combined together in an abutting arrangement so that the first and second regions (M, N) positioned at the peripheral edges of each other are made to abut each other so as to form a mutual fit. The shapes are thus made to constitute the overall shape of the plate surface. The first region (M) may be made to protrude upward, and the second region (N) may be made to recess downward. Alternatively, the first and/or second region (M, N) may be made to protrude upward or recess downward. Concavo-convex shapes are thereby formed on the entire plate surface.
A plate material (1) having improved rigidity obtained by forming an uneven surface section (20) on the plate material (1). The plate material (1) has, as reference surfaces, a first reference surface (K1), an intermediate reference surface (K3), and a second reference surface (K2) which are three imaginary surfaces sequentially arranged at intervals so as to be parallel to each other. First reference regions (213) having a specific shape and second reference regions (223) which are the regions other than the first reference regions (213) are arranged in the intermediate reference surface (K3). The uneven surface section (20) is formed by first regions (21), and second regions (22) and/or flat surface regions (23).
Provided is a plate material (1) having a concavo-convex portion (20). With a first reference surface (K1) and a second reference surface (K2) set as references, on the second reference surface (K2), a large number of first reference areas (213) having an approximately H-letter shape, which are constituted of two longitudinal bar portions (214) and a lateral bar portion (215) that connects center parts of the longitudinal bar portions with each other, are arranged with the first reference areas faced in the same direction. On the plate material (1), the concavo-convex portion (20) is provided which is formed of a first area (21) constituted of a first top surface (211) and a first side surface (212), the first top surface (211) being obtained by decreasing in size and projecting the first reference area (213) on the first reference surface (K1) so that a projection is caused from the first reference area (213) on the second reference surface (K2) toward the first reference surface (K1), the first side surface (212) connecting the outline of the first top surface (211) with the outline of the first reference area (213).
B21D 47/00 - Making rigid structural elements or units, e.g. honeycomb structures
B32B 3/30 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer formed with recesses or projections, e.g. grooved, ribbed
E04C 2/30 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
G10K 11/16 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
25.
Aluminum alloy heat exchanger and method of producing refrigerant tube used for the heat exchanger
2, the surface of the refrigerant tube subjected to brazing having a potential lower than that of an area of the refrigerant tube that is deeper than a diffusion depth of Si and Zn by 20 to 200 mV, and a potential of the fin being lower than that of a deep area of the refrigerant tube.
B23K 35/28 - Selection of soldering or welding materials proper with the principal constituent melting at less than 950°C
B23K 35/36 - Selection of non-metallic compositions, e.g. coatings, fluxesSelection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
Provided is a coated aluminum alloy sheet for pressurized-can lids which, even when produced in a reduced thickness without through a process annealing step, suffers no decrease in toughness, has satisfactory formability during lid forming, and has excellent resistance to cracking by buckling. The coated aluminum alloy sheet has a composition which contains, in terms of mass%, 0.04-0.20% Si, 0.35-0.70% Mn, 0.12-0.30% Fe, 0.01-0.10% Cu, and 4.0-5.5% Mg, the remainder comprising Al and incidental impurities, and has a thickness of 0.190-0.230 mm. The sheet is characterized by having a tensile strength of 360-400 MPa and a proof strength of 320-355 MPa. The sheet is further characterized in that when a test piece cut out of the sheet along the direction perpendicular to the rolling direction is subjected to a 90º reversed cyclic bending test at an inner bending radius of 1.0 mm while applying a constant load of 100 N to the test piece, then the number of cycles to rupture is 7 or more.
C22C 21/06 - Alloys based on aluminium with magnesium as the next major constituent
C22F 1/047 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent
An aluminum alloy material for an aluminum alloy welded member, which is obtained by forming a welded portion by means of friction stir welding, is formed to contain 0.3-6.0% by mass of Mg, 0.2% by mass or less of Cu, 0.1% by mass or less of Si and 0.1% by mass or less of Fe, with the balance made up of Al and unavoidable impurities, and secondary phase particles dispersed in the aluminum alloy are made to have a particle diameter of 5 μm or less when observed with an optical microscope. Consequently, the secondary phase particles in a portion corresponding to the welded portion of the aluminum alloy welded member are uniformly dispersed even in comparison to the other portions, so that change in the formation of pits by etching is reduced and problem of color tone difference in an anodic oxide coating film can be solved.
B23K 20/12 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by frictionFriction welding
Provided is a plate-shaped material (1) which has a recessed and projected portion (20) formed to enhance rigidity. The recessed and projected portion is formed with reference to a first reference plane (K1), an intermediate reference plane (K3), and a second reference plane (K2). It is assumed that the intermediate reference plane (K3) is defined by a first grid straight line (L1), a second grid straight line (L2), and a third grid straight line (L3), and filled with a hexagonal unit region (24) and a triangular unit region (25). Those regions made up of the hexagonal unit region (24) and the triangular unit region (25) are to be a first reference region (214), a second reference region (224), and a third reference region (234), so that combinations thereof form a new first reference region (213), a new second reference region (223), and a new third reference region (233). The recessed and projected portion (20) is made up of a first region (21) and a second region (22) which include the new first reference region (213) and the new second reference region (223), and an intermediate plane (23) which includes the new third reference region (233).
B21D 47/00 - Making rigid structural elements or units, e.g. honeycomb structures
B32B 3/30 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer formed with recesses or projections, e.g. grooved, ribbed
E04C 2/30 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
G10K 11/16 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
Disclosed is a resin-coated aluminum alloy plate (1) which is composed of a substrate (10) that is formed of an aluminum alloy plate and a synthetic resin coating film (11) that is formed on both surfaces or one surface of the substrate (10). The synthetic resin coating film (11) comprises a functional coating film (111) that contains one or two kinds of inner wax selected from among lanolin, carnauba, polyethylene and microcrystalline wax in an amount of 0.05-3 parts by weight per 100 parts by weight of a base resin that is composed of a polyester resin and/or an epoxy resin. The functional coating film (111) has an elongation of 200-300%, a tensile strength of 300-500 kg/cm2, a Young's modulus of 1,000-2,500 kg/cm2, and a glass transition temperature of 0-40˚C.
B32B 15/092 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising epoxy resins
B32B 15/09 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising polyesters
The present invention is a double pipe (1) that is for a heat exchanger, has a double pipe structure formed from disposing an inner pipe (2) within an outer pipe (10), and is for exchanging heat between a fluid that flows within the inner pipe (2) and a fluid that flows between the inner pipe (2) and the outer pipe (10). The cross sectional shape of the inner pipe (2) exhibits a shape having two convex sections (21) at which a portion of the perimeter of a circle is deformed in a manner so as to protrude to the outside of the circle, and the positions of the convex sections (21) in the lengthwise direction have a helically displaced shape. The cross sectional shape of the outer pipe (10) exhibits a circular smooth pipe shape. The inner peripheral surface of the outer pipe (10) contacts the apical portions (210) of the protruding sections (21) of the inner pipe (2), and an outer duct (31) that is compartmentalized in the peripheral direction is formed between the outer pipe (10) and the inner pipe (2).
F28D 7/10 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
The disclosed serpentine heat exchanger for an air conditioner effectively minimizes losses in heat-exchange performance due to condensation and is capable of adequately accommodating efforts to reduce the size of air conditioners. Said serpentine heat exchanger (10) comprises a plurality of fin groups (14) and a heat-exchanger pipe (16). Each fin group (14) is formed by arranging a large number of fins (12), each comprising a metal plate with a prescribed coating layer formed on at least one surface, parallel to each other at intervals of 0.6-5.0 mm in a direction (y direction) perpendicular to the direction (x direction) in which a heat-exchange fluid, namely air, flows. The plurality of fin groups (14) are arranged in a row at a constant distance from each other in a direction (z direction) perpendicular to the x direction and the y direction. The heat-exchanger pipe (16) is laid out in a serpentine configuration so as to penetrate each fin group (14) in turn.
F28F 1/32 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
F28F 1/40 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
F28F 13/02 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by influencing fluid boundary
F28F 21/08 - Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
32.
PLATE HAVING UNEVEN PART, AND VEHICLE PANEL AND LAMINATED STRUCTURE USING SAME
A plate (1) having an uneven part (20). Using a first reference plane (K1), a second reference plane (K2), and an intermediate reference plane (K3) as references, squares obtained by partitioning a unit region (23) disposed on the intermediate reference plane (K3) by a lattice that is vertically and horizontally divided into n equal parts are classified as first squares (231) and second squares (232). A region in which the first squares (231) are continuously arranged is defined as a first reference region (213), and a region in which the second squares (232) are continuously arranged is defined as a second reference region (223). First regions (21) projecting from the first reference region (213) to the first reference plane (K1) and second regions (22) projecting from the second reference region (213) to the second reference plane (K2) are provided. The first region comprises a first top surface (211) and a first side surface (212). The second region comprises a second top surface (221) and a second side surface (221).
A double tube for a heat exchanger, capable of being used without generating noise during operation and allowing the heat exchanger to exhibit excellent heat exchange performance. A double tube (1) for a heat exchanger has a double tube configuration having an inner tube (2) disposed within the outer tube (10) and is used for heat exchange between fluid which flows inside the inner tube (2) and fluid which flows between the inner tube (2) and the outer tube (10). The cross-sectional shape of the inner tube (2) is a triangle having the apexes (21) formed as circular arc curved surfaces, and the positions of the apexes (21) are helically displaced in the longitudinal direction. The cross-sectional shape of the outer tube (10) is that of a smooth circular tube. The inner peripheral surface of the outer tube (10) and the apexes (21) of the inner tube (2) are in contact with each other, and three outer flow paths (31) which are divided in the circumferential direction are formed between the outer tube (10) and the inner tube (2). The inner tube (2) and the outer tube (10) preferably consist of an aluminum alloy or a copper alloy.
F28D 7/10 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
F28F 1/36 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely the means being helically-wound fins or wire spirals
F28F 21/08 - Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
34.
METHOD FOR PRODUCING ALUMINUM ALLOY HEAT EXCHANGER
Provided is a method for producing an aluminum alloy heat exchanger formed by applying a coating material, which is obtained by mixing an Si powder, a flux powder, and a binder, to the surface of a flat, multi-hole coolant tube formed from an aluminum alloy extruded material, attaching an aluminum alloy bare fin and brazing the resulting product. The coolant tube is formed from the extruded material of an aluminum alloy that comprises 0.5 to 1.7% of Mn, less than 0.10% of Si, and less than 0.10% of Cu, with the remainder being Al and inevitable impurities. The fin is a corrugated fin obtained by molding an Al-Mn-Zn alloy material. The coating material is obtained by mixing an Si powder, a compound flux powder containing Zn, a Zn-free compound flux powder, and a binder. The amount of the Si powder applied is 1 to 4 g/m2. The potential is the highest in a deep section of the coolant tube of the heat exchanger produced by means of brazing, and the potential decreases in the order of the coolant tube surface, a fin joint fillet, and the fin.
C22F 1/04 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
F28F 1/30 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means being attachable to the element
F28F 21/08 - Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
A frame member for use in a two-wheeled vehicle and an all-terrain vehicle that includes a plurality of Al members each made of a 7000 series Al alloy having a high strength is provided in which weld crack sensitivity is reduced and a weld joint having an excellent strength is provided. The alloy composition of the 7000 series Al alloy, which provides the Al member, containing Cu: 0.01 to 0.50%, Mg: 0.5 to 2.1%, and Zn: 4.0 to 8.5%, with the balance being Al and inevitable impurities. Further, in the production of the frame member, the plurality of Al members are integrated by welding using a filler metal containing Mg: 5.5 to 8.0%, Cr: 0.05 to 0.25%, Ti: 0.25% or less, Si: 0.4% or less, Fe: 0.4% or less, Cu: 0.1% or less, Zr: 0.05% or less and Zn: 0.25% or less, and with the balance being Al and inevitable impurities.
B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
B32B 15/04 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance
B32B 15/20 - Layered products essentially comprising metal comprising aluminium or copper
B23K 31/02 - Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups relating to soldering or welding
C22F 1/047 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent
C22F 1/053 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with zinc as the next major constituent
36.
RESIN-COATED ALUMINUM ALLOY PLATE FOR BOTTOMED CYLINDRICAL CASE FOR CAPACITOR
Disclosed is a resin-coated aluminum alloy plate for a bottomed cylindrical case for a capacitor, which has good drawing processability and ironing processability and is free from cracking of the resin coating film and separation between the aluminum alloy plate and the resin coating film during the processing. The resin-coated aluminum alloy plate for a bottomed cylindrical case for a capacitor is also free from deterioration of the coating film and corrosion of the base aluminum in a harsh environment after the processing. Specifically disclosed is a resin-coated aluminum alloy plate for a bottomed cylindrical case for a capacitor, which is composed of a substrate that is formed of an aluminum alloy plate, a chemical conversion coating film that is formed on the surface of the substrate, and a resin coating film that is formed on the surface of the chemical conversion coating film. The resin coating film is a cured product of a resin mixture that contains an epoxy resin having specific physical properties, a polyester resin, an amino resin and an isocyanate resin at a specific mixing ratio.
B32B 15/092 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising epoxy resins
B32B 15/08 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
B32B 15/09 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising polyesters
B32B 15/095 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising polyurethanes
C09D 161/20 - Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
C09D 163/00 - Coating compositions based on epoxy resinsCoating compositions based on derivatives of epoxy resins
C09D 167/00 - Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chainCoating compositions based on derivatives of such polymers
Provided is a conductive precoated aluminum alloy sheet (1) which comprises a substrate (2) formed from an aluminum alloy sheet, a chemical conversion film (3) formed on one or both surfaces of the substrate (2), and a resin coating (4) formed on the chemical conversion film (3). The resin coating (4) comprises, at a specific mixture ratio, a urethane resin having a glass transition point of 100ºC to 150ºC, a colloidal silica having a primary particle diameter of 5 to 80 nm, and an inner wax having a primary particle diameter of 0.05 to 5 µm and a molecular weight of 1,000 to 16,000. Thickness (T) of the resin coating (4) is 0.05 to 1.0 µm, and surface roughness (Ra) of the substrate (2) is 0.1 to 0.8 µm. Furthermore, T/Ra is 0.07 to 4.0.
B05D 7/14 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
B32B 15/08 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
Disclosed is a fin and tube heat exchanger formed by laminating a plurality of fins (2) composed of an aluminum alloy plate, wherein heat transfer tubes extend through the fins. Each fin (2) has a plurality of embossed portions (25) that protrude in the thickness direction and have a circular- or elliptically-shaped bottom. If the height of each embossed portion (25) is defined as h (mm), and the width of the bottom of each embossed portion in the direction perpendicular to the airflow direction is defined as d (mm), the relationships of 1 mm < d < 5 mm, and 2 < d/h < 5 are satisfied, and the number of the embossed portions (25) is 1 to 8/100 mm2. If the pitch between the fins (2) is defined as p (mm), 0.1 ≤ h/p ≤ 0.6 is preferable.
F28F 1/32 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
F28D 1/053 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
F28F 13/12 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
39.
COATED HIGH-GLOSS ALUMINUM MATERIAL FOR HOUSING AND METHOD FOR PRODUCING SAME
Disclosed are a coated high-gloss aluminum material (1) for a housing, which comprises a base material (2) formed of an aluminum alloy and a coating film (3) formed on the surface thereof, and a method for producing the same. In the coated high-gloss aluminum material (1) for a housing, the coating film (3) is formed by electrodeposition coating on the surface of the base material (2) having a surface roughness (Ra) of 0.001-0.05 μm. The method for producing the coated high-gloss aluminum material (1) comprises a step for producing the base material and an electrodeposition coating step. In the step for producing the base material, the base material (2), which is formed of an aluminum alloy and has a surface roughness (Ra) of 0.001-0.05 μm, is produced by a technique selected from among roll transferring, chemical polishing, electrolytic polishing and mechanical polishing. In the electrodeposition coating step, the coating film (3) is formed on the surface of the base material (2) by electrodeposition coating.
The standard arrangement for concave/convex sections (20) is such that, among the roughly regular hexagon regions that are regularly arranged on a virtual reference surface, the periphery of one first region (A1) is surrounded by six second regions (A2), wherein said standard arrangement continues regularly in the latitudinal and longitudinal direction of the surface, and the concave/convex sections (20) are shaped with first protruding sections (21) and second protruding sections (22) which protrude in the thickness direction and in the opposite direction from each other for the first region (A1) and the second region (A2), respectively. The first protruding sections (21) have a six-sided pyramid shape or a truncated six-sided pyramid shape, and protrude in one of the directions in the thickness direction, the outer circumference contour of the first region (A1) on the reference surface being the base section. The second protruding sections (22) have a six-sided pyramid shape or a truncated six-sided pyramid shape, and protrude in the other direction in the thickness direction, the outer circumference contour of the second region (A2) on the reference surface being the base section.
B21D 47/00 - Making rigid structural elements or units, e.g. honeycomb structures
B21D 13/10 - Corrugating sheet metal, rods or profiles, or bending sheet metal, rods or profiles into wave form into a peculiar profiling shape
B32B 3/26 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids
41.
Aluminum alloy sheet for lithographic printing plate
An aluminum alloy sheet for a lithographic printing plate includes 0.03 to 0.15% (mass %, hereinafter the same) of Si, 0.2 to 0.7% of Fe, 0.05 to 0.5% of Mg, 0.003 to 0.05% of Ti, and 30 to 300 ppm of Ga, with the balance being aluminum and inevitable impurities, a surface area of the aluminum alloy sheet having an average recrystallized grain size of 50 μm or less in a direction perpendicular to a rolling direction, an Mg concentration that is higher than the average Mg concentration by a factor of 5 to 50, and a Ga concentration that is higher than the average Ga concentration by a factor of 2 to 20, the surface area being an area up to a depth of 0.2 μm from the surface of the aluminum alloy sheet.
Disclosed is a copper alloy seamless pipe which exhibits high strength and suffers little deterioration of the strength due to brazing. The copper alloy seamless pipe is obtained by processing a copper alloy and is characterized in that: the copper alloy contains one or more elements selected from among Sn, Zn and Al and 0.01-0.08% by mass of Zr with the balance made up of Cu and unavoidable impurities; the amounts of Sn, Zn, Al and Zr contained in the copper alloy satisfy the following formula (1): 0.4 ≤ A + 2B ≤ 0.85 (wherein A represents the total amount of Sn, Zn and Al contained therein (expressed in mass%) and B represents the amount of Zr contained therein (expressed in mass%)); the copper alloy seamless pipe has an average crystal grain size of not more than 30 μm; and Zr-containing deposits having a size of 0.5-80 nm are distributed at a density of 10-600 pieces/μm2.
C22C 9/01 - Alloys based on copper with aluminium as the next major constituent
C22F 1/08 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
43.
Aluminum sheet material for lithographic printing plates
An aluminum sheet material for lithographic printing plates wherein the number of aluminum carbide particles having a circle equivalent diameter, measured by the PoDFA method, of 3 μm or more is four or less, the number of aluminum carbide particles having a circle equivalent diameter, measured by the PoDFA method, of 3 μm or more.
Disclosed is a heat dissipating member (1) for an LED light bulb that has a built-in LED element. The heat dissipating member (1) is formed by press-molding an aluminum alloy plate into a generally conical shape, and the outer circumferential surface (10) of the heat dissipating member (1) is provided with recessed and projected portions (12). The aluminum alloy plate is a pre-coated aluminum alloy plate that is obtained by pre-coating both surfaces or one surface of a substrate with a synthetic resin coating film. At least one of the pre-coated synthetic resin coating films preferably comprises a heat-dissipating coating film which contains a heat-dissipating substance in a base resin that has a number average molecular weight of 10,000-40,000 and is composed of one or more resins selected from among urethane resins, ionomer resins, polyethylene resins, epoxy resins, fluororesins and polyester resins.
Disclosed is a heat exchanger made from an aluminum alloy, which has high corrosion resistance, enables the reduction in weight of one layer and cost, and is particularly suitable as an automotive heat exchanger. Specifically disclosed is a heat exchanger made from an aluminum alloy, which is produced by applying a mixture containing an Si powder and a fluoride flux onto the surface of a coolant passage tube made from an aluminum alloy, attaching a fin, and brazing the fin. The heat exchanger is characterized in the following matters: the coolant passage tube comprises an extrusion material made from an aluminum alloy comprising 0.5 to 1.7% of Mn, with the remainder being Al and unavoidable impurities; the fin comprises an aluminum alloy comprising 0.3 to 4.0% of Zn and 0.8 to 1.7% of Mn, with the remainder being Al and unavoidable impurities; and a Zn-diffused layer is formed on the surface layer of the coolant passage tube.
Disclosed is a heat exchanger made from an aluminum alloy, which has high corrosion resistance, enables the reduction in weight of one layer and cost, and is particularly suitable as an automotive heat exchanger. Specifically disclosed is a heat exchanger made from an aluminum alloy, which is produced by applying a coating agent comprising a mixture of an Si powder and a Zn-containing compound flux powder and a binder onto the surface of a coolant passage tube, attaching a bare fin made from an Al-Mn-Zn alloy, and heating the resultant product in an atmosphere furnace to braze the bare fin. The heat exchanger is characterized in the following matters: the coolant passage tube comprises an extrusion material made from an aluminum alloy comprising 0.5 to 1.7% of Mn, less than 0.10% of Cu and less than 0.10% of Si, with the remainder being Al and unavoidable impurities; in the mixture, the mixing ratio of the Si powder to the Zn-containing compound flux powder is 10:90 to 40:60; the binder is added to the mixture in an amount of 5 to 40% relative to the total amount of the coating agent; the coating agent is applied onto the outer surface of the coolant passage tube in such an amount that the Si powder and the Zn-containing compound flux powder are applied in a total amount of 5 to 30 g/m2; the surface of the coolant passage tube exhibits an electric potential lower than that in a deeper-lying area than the diffusion depth of Si and Zn after the brazing by heating, and the difference in electric potential is 20 to 200 mV; and the fin has an electric potential lower than that in a deep area of the coolant passage tube.
Disclosed is a frame for a two-wheeler or all-terrain vehicle, the frame being composed of a plurality of aluminum members constituted of a high-strength 7000-series aluminum alloy. The frame has reduced susceptibility to weld cracking and includes weld joints having excellent strength properties. A 7000-series aluminum alloy for giving a plurality of aluminum members is regulated so as to have an alloy composition containing 0.01-0.50% Cu, 0.5-2.1% Mg, and 4.0-8.5% Zn, with the remainder being Al and incidental impurities, and the aluminum members formed therefrom are united by welding to produce a frame for a two-wheeler or all-terrain vehicle, using a filler metal having an alloy composition containing 5.5-8.0% Mg, 0.05-0.25% Cr, up to 0.25% Ti, up to 0.4% Si, up to 0.4% Fe, up to 0.1% Cu, up to 0.05% Zr, and up to 0.25% Zn, with the remainder being Al and incidental impurities.
B23K 35/28 - Selection of soldering or welding materials proper with the principal constituent melting at less than 950°C
C22C 21/06 - Alloys based on aluminium with magnesium as the next major constituent
C22C 21/10 - Alloys based on aluminium with zinc as the next major constituent
C22F 1/047 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent
C22F 1/053 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with zinc as the next major constituent
B62D 29/00 - Superstructures characterised by material thereof
B62K 19/04 - Cycle frames characterised by material or cross-section of frame members the material being wholly or mainly metallic, e.g. of high elasticity
An aluminum alloy clad sheet for heat exchangers includes a core material, a cladding material 1, and a cladding material 2, one side and the other side of the core material being respectively clad with the cladding material 1 and the cladding material 2, the core material containing 0.5 to 1.2% of Si, 0.2 to 1.0% of Cu, 1.0 to 1.8% of Mn, and 0.05 to 0.3% of Ti, with the balance being Al and unavoidable impurities, the cladding material 1 containing 3 to 6% of Si, 2 to 8% of Zn, and at least one of 0.3 to 1.8% of Mn and 0.05 to 0.3% of Ti, with the balance being Al and unavoidable impurities, and the cladding material 2 containing 6 to 13% of Si, with the balance being Al and unavoidable impurities, the cladding material 1 serving as the outer side of the aluminum alloy clad sheet during use.
B32B 15/20 - Layered products essentially comprising metal comprising aluminium or copper
C22C 21/02 - Alloys based on aluminium with silicon as the next major constituent
B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
C22C 21/10 - Alloys based on aluminium with zinc as the next major constituent
F28D 1/03 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
F28F 19/06 - Preventing the formation of deposits or corrosion, e.g. by using filters by using coatings, e.g. vitreous or enamel coatings of metal
F28F 21/08 - Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
A precoat layer (3), which is formed on at least one surface of a substrate (2), is composed of one or more layers including a highly reflective layer (4) that contains not less than 30 parts by weight of a highly reflective substance (41) per 100 parts by weight of a base resin (42). The base resin (42) is characterized in that the specular reflectance decrease rate between before and after a 10-μm thick coating film of the base resin (42) is formed on an aluminum alloy plate having a specular reflectance of not less than 80% is not more than 10%. The highly reflective substance (41) is composed of one or more substances selected from among barium sulfate, titanium oxide, calcium carbonate, calcium sulfate, alumina, magnesium oxide, magnesium sulfate, magnesium silicate, zinc oxide, glasses, aluminum nitride, boron nitride, silica, zirconium oxide, and hollow glass beads. The highly reflective substance (41) has an average particle diameter of 0.1-10 μm. The highly reflective layer (4) has a thickness of 20-150 μm.
B32B 15/08 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
C09D 5/00 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects producedFilling pastes
This aims to provide a level-wound coil unwinding method capable of letting off a tube stably in a remarkably easy manner while avoiding the rise in the cost as much as possible. A level-wound coil (LWC) (10) is arranged to have its axis in the vertical direction, and a tube (2) is extracted through a drawing curved guide tube (12) arranged thereover, so that the LWC (10) is unwound from the outer side. A guide pipe (20) having a flexible pipe portion (22) is constituted such that the guide pipe (20) is not fixed but armors the tube (2) so that its lower end may be positioned close to a point (P) for letting the tube (2) off the LWC (10), and such that the guide pipe (20) can move freely in the tube axis direction by its own weight at the time of extracting the tube (2). The tube (2) is let off in the mode where its lower end is always close to the tube let-off point (P).
An aluminum alloy sheet for a lithographic printing plate is obtained by homogenizing an ingot of an aluminum alloy at 500 to 610° C. for one hour or more, the aluminum alloy containing 0.03 to 0.15% of Si, 0.2 to 0.6% of Fe, 0.005 to 0.05% of Ti, and 2 to 30 ppm of Pb, with the balance being aluminum and unavoidable impurities, subjecting the homogenized product to rough hot rolling, a start temperature of the rough hot rolling being 430 to 500° C. and a finish temperature of the rough hot rolling being 400° C. or more, holding the product subjected to rough hot rolling for 60 to 300 seconds after the completion of the rough hot rolling to recrystallize the surface of the product, and subjecting the resulting product to finish hot rolling that is finished at 320 to 370° C. The aluminum alloy sheet has an average recrystallized grain diameter of 50 μm or less in a surface area in a direction perpendicular to a rolling direction, and has a Pb concentration 100 to 400 times an average Pb concentration in a surface area up to a depth of 0.2 μm from the surface of the aluminum alloy sheet.
This invention provides an aluminum alloy plate for press molding wherein, in aluminum or a texture of an aluminum alloy plate for press molding, the orientation density of CR orientation ({001} <520>; the same shall apply hereinafter) is higher than that in any orientation other than the CR orientation. The orientation density of the CR orientation is preferably not less than 10 (random ratio; the same shall apply hereinafter). Preferably, the orientation densities of all orientations other than the CR orientation are less than 10. The aluminum alloy plate for press molding is for example formed of an Al-Mg, Al- Mn or Al-Mg-Si alloy.
C22C 21/06 - Alloys based on aluminium with magnesium as the next major constituent
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
C22F 1/04 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
C22F 1/05 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions
This invention provides an aluminum alloy plate for press molding wherein, in aluminum or a texture of an aluminum alloy plate for press molding, the orientation density of CR orientation ({001} ឬ520ᡶ; the same shall apply hereinafter) is higher than that in any orientation other than the CR orientation. The orientation density of the CR orientation is preferably not less than 10 (random ratio; the same shall apply hereinafter). Preferably, the orientation densities of all orientations other than the CR orientation are less than 10. The aluminum alloy plate for press molding is preferably formed of an Al-Mg-Si alloy.
C22C 21/06 - Alloys based on aluminium with magnesium as the next major constituent
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
C22F 1/04 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
C22F 1/05 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions
54.
HIGH-STRENGTH ALUMINUM-BASE ALLOY PRODUCTS AND PROCESS FOR PRODUCTION THEREOF
The invention aims at providing heat-treatable high-strength Al-Cu-Mg-Si aluminum-base alloy products which exhibit both excellent extrudability and high strength. An Al-Cu-Mg-Si aluminum-base alloy product obtained by extrusion, characterized in that the microstructure of the whole section of the extruded product is constituted of recrystallized grains having a mean aspect ratio (L/t) of 5.0 or below (wherein L is mean grain diameter of the grains in the direction of extrusion and t is mean thickness of the grains) and that in the texture, the orientation density of grains where the normal lines of {001} plane are parallel to the direction of extrusion is at most 50 times that of random orientation; and an Al-Cu-Mg-Si aluminum-base alloy product obtained by extrusion and cold working, characterized in that rod-like precipitates having an average length of 10 to 70nm and the maximum length of 120nm or below are arranged in the matrix grains in direction at a number density in [001] direction of 500 pieces/&mgr;m2 or above as determined in the visual field of observation from (001) plane.
C22C 21/12 - Alloys based on aluminium with copper as the next major constituent
C22F 1/057 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with copper as the next major constituent
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
A copper alloy for seamless pipes which contains one or more of Al, Sn and Zn and Zr with the balance being Cu and unavoidable impurities, characterized in that the contents of Al, Sn, Zn and Zr in the copper alloy satisfy the relationships: 0.05 ≤ A+B+C, 0.01 ≤ D ≤ 0.5, and 0.25 ≤ A+B+C+D ≤ 0.8 (wherein A is the content of Al (% by mass); B is the content of Sn (% by mass); C is the content of Zn (% by mass); and D is the content of Zr (% by mass). The invention provides a copper alloy for seamless pipes which exhibits excellent workability, high strength, and high heat conductivity as well as a copper alloy for seamless pipes which exhibits excellent workability, high strength, and high heat conductivity and is reduced in the strength deterioration caused by brazing.
C22C 9/01 - Alloys based on copper with aluminium as the next major constituent
C22C 9/02 - Alloys based on copper with tin as the next major constituent
C22C 9/04 - Alloys based on copper with zinc as the next major constituent
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
C22F 1/08 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
56.
Rotary tool for friction stir spot welding and method of friction stir spot welding using the same
A rotary tool for friction stir spot welding including: a rod-like probe to be inserted into one side of stacked planar portions of plural metal members to be joined while being rotated; and a cylindrical shoulder member which is disposed coaxially outwardly of the probe and which has a shoulder surface to be abutted against the one side of the stacked portions while being rotated, wherein the probe and the shoulder member are individual components and are disposed so as to have a double-acting structure which enable them to move independently in their axial direction, and in which a gap between an inner surface of the shoulder member and an outer surface of the probe is formed to have a small gap on a tip side of the rotary tool and to have an enlarged gap having larger clearance than the small gap on a base portion side thereof.
B23K 20/12 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by frictionFriction welding
B23K 37/00 - Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
57.
Brazing fin material for heat exchangers, heat exchanger, and method of manufacturing same
A brazing fin material for heat exchangers includes a core material and a filler metal clad on each side of the core material, wherein the core material is an aluminum alloy including manganese, the filler metal is an aluminum alloy including 6 to 9.5 mass % of silicon, silicon particles in the filler metal have an average circle equivalent diameter of 3 μm or less, and the brazing fin material has a thickness of 0.06 mm or less.
Disclosed is an aluminum alloy plate for use in a surface printing plate, which has a more even pit formed thereon by an electrochemical surface roughening treatment and shows better adhesion to a photosensitive film and better water-retentivity. An aluminum alloy plate having the following composition: Mg: 0.1 to 1.5%; Zn: more than 0.05% and not more than 0.5%; Fe: 0.1 to 0.6%; Si: 0.03 to 0.15%; Cu: 0.0001 to 0.10%; Ti: 0.0001 to 0.05%; and remainder: aluminum and impurities, provided that the relationship between the Mg content and the Zn content is defined as follows: 4xZn%-1.4% ≤ Mg% ≤ 4xZn%+0.6%, wherein the amount of aluminum powder on the surface of the plate is adjusted to 0.1 to 3.0 mg/m2. It is more effective that the precipitate having a diameter (equivalent circular diameter) of 0.1 to 1.0 騜m is dispersed on the surface of the plate at a density of 10,000 to 100,000 particles/mm2.
C22C 21/10 - Alloys based on aluminium with zinc as the next major constituent
C22F 1/04 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
C22F 1/047 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent
C22F 1/053 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with zinc as the next major constituent
59.
ROTARY TOOL FOR FRICTION STIRRING-SPOT WELDING AND FRICTION STIRRING-SPOT WELDING METHOD USING THE ROTARY TOOL
A rotary tool for friction stirring-spot welding and a friction stirring-spot welding method capable of smoothly and repeatedly performing a friction stirring-spot welding operation by effectively relieving or avoiding problems caused by the adhesion of a material invading into clearances between a probe and a shoulder member. The rotary tool (10) for friction stirring-spot welding comprises the rod-like probe (12) formed by stacking a plurality of joined metal members on each other and inserted from one side of the stacked part thereof into the shoulder member while being rotated and the cylindrical shoulder member (14) fitted onto the outer periphery of the probe coaxially with each other and having a shoulder surface brought into contact with the surface thereof on the one side under rotation. The tool (10) is formed in a double-acting structure so that the probe is separated from the shoulder member and the probe and the shoulder member can be axially moved independently of each other. The clearance (22a) between the inner peripheral surface of the shoulder member and the outer peripheral surface of the probe is formed smaller (22a) at the tip side and larger (22b) than the small clearance at the base side.
B23K 20/12 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by frictionFriction welding
60.
ALUMINUM ALLOY BRAZING FIN MATERIAL FOR HEAT EXCHANGER
An aluminum alloy brazing fin material for an automobile heat exchanger, which comprises a core material and, being clad on the both surfaces thereof, an Al-Si based alloy brazing material, characterized in that the above core material is composed of an aluminum alloy having a chemical composition that Mn: 0.8 to 2.5 %, Si: 0.1 to 1.0 %, Fe: 0.06 to 0.3 %, Zn: 0.8 to 4.0 % and the balance: Al and impurities, and the above brazing material is composed of an aluminum alloy having a chemical composition that Si: 6 to 13 %, Cu: 0.06 to 0.4 % and the balance: Al and impurities, and that the brazing material is clad on both surfaces of the core material with a thickness of 3 to 20 % of the total thickness, respectively. The above aluminum alloy brazing fin material for an automobile heat exchanger exhibits excellent formability and excellent corrosion resistance even under a severe corrosion circumstance.
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