An inductor unit for controlled induction welding of at least one fiber reinforced thermoplastic composite workpiece, comprising at least one coil unit, at least one electrically conductive element and at least one soft magnetic element. The electrically conductive element has a generative side and an active side. The active side is configured to face the at least one workpiece to be welded and has a smaller cross-sectional surface area than the generative side. The at least one coil unit is configured to induce currents in the electrically conductive element, and the at least one soft magnetic element is arranged at least partly on the at least one electrically conductive element such that the induced current is directed from the generative side to the active side of the electrically conductive element and concentrated therein.
A system for uniform temperature generation in an article or part to be formed by molding. The system (1) comprises a molding tool (10) with an electrically conductive element (11) and a heat generation means (12); and an inductor unit (20) comprising at least one coil (21) wound such that a current flowing in each winding of the at least one coil (21) is directed alternatingly in a positive and negative direction with respect to an adjacent winding of the at least one coil (21). The inductor unit (20) is configured to induce a current in the molding tool (10). Furthermore, the electrically conductive element (11) is configured to electrically bypass current induced in the molding tool (10) by the inductor unit (20), at an interface between the electrically conductive element (11) and the heat generation means (12).
Disclosed is a molding tool for producing a composite part using induction heating. The molding tool has a mold with a contact surface adapted to be in contact with a material to be transformed into a composite part, and an outer surface. The mold is configured to be inductively heated by at least one main coil arranged in a meander-like pattern on the outer surface of the mold, such that a magnetic field generated by an alternating electric current flowing through the at least one main coil induces currents in at least parts of the mold to be heated, and at least one perimeter coil arranged on the outer surface of the mold configured to delimit at least one area of the mold to be inductively heated. The at least one main coil and the at least one perimeter coil comprise litz wires which are electrically insulated from the mold and in operative communication with at least one processing means.
B29C 33/06 - Moulds or coresDetails thereof or accessories therefor with incorporated heating or cooling means using radiation
B29C 35/08 - Heating or curing, e.g. crosslinking or vulcanising by wave energy or particle radiation
B29C 70/44 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
B29K 69/00 - Use of polycarbonates as moulding material
B29K 105/08 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
An inductor unit for controlled induction welding of at least one fiber reinforced thermoplastic composite workpiece, comprising at least one coil unit (110, 210), at least one electrically conductive element (120, 220) and at least one soft magnetic element (130, 230). The electrically conductive element (120, 220) has a generative side (120a, 220a) and an active side (120b, 220b). The active side (120b, 220b) is configured to face the at least one workpiece (20, 21) to be welded and has a smaller cross-sectional surface area than the generative side (120a, 220a). The at least one coil unit (110, 210) is configured to induce currents in the electrically conductive element (120, 220), and the at least one soft magnetic element (130, 230) is arranged at least partly on the at least one electrically conductive element (120, 220) such that the induced current is directed from the generative side (120a, 220a) to the active side (120b, 220b) of the electrically conductive element (120, 220) and concentrated therein.
B29C 65/36 - Joining of preformed partsApparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
B29C 65/00 - Joining of preformed partsApparatus therefor
5.
MOLDING TOOL, METHOD OF MANUFACTURING THE SAME AND METHOD OF PRODUCING A COMPOSITE PART IN SAID TOOL
A molding tool for producing a composite part using induction heating. The molding tool includes a mold (10) having a contact surface adapted to be in contact with a material to be transformed into a composite part, and an outer surface; at least one coil (21-23) or at least one wire (211-213) of a coil (21-23) arranged on the outer surface of the mold (10); and at least one clamping means (40). The clamping means has a first end (41), a second end (42) and an intermediate section (43) extending between the first end (41) and the second end (42). At least one of the first end (41) and second end (42) is attached to the outer surface of the mold (10) using welding, brazing or soldering, so as to at least partly fixate the at least one coil (21-23) to the outer surface of the mold (10). The intermediate section (43) at least partially encloses the at least one wire (211- 213) or coil (21-23) to hold said at least one wire (211-213) or coil (21-23) in place on the outer surface of the mold (10).
A system for controlled induction welding of at least one weld seam area (A) of at least two surfaces of at least one workpiece is provided. The system comprises an inductor configured to be arranged in conjunction with the at least one workpiece, a processing means configured to generate an electromagnetic field by applying an alternating voltage to the inductor so as to inductively heat at least one of the surfaces so that the weld seam area (A) is welded together, simultaneously measure at least one parameter (P) of the at least one workpiece at least based on the generated electromagnetic field, detect a change of the at least one parameter (P), and determine a temperature estimation of the at least one workpiece based on said detected change.
Disclosed is a molding tool for producing a composite part using induction heating. The molding tool (1) has a mold (10) with a contact surface adapted to be in contact with a material to be transformed into a composite part, and an outer surface (12). The mold (10) is configured to be inductively heated by at least one main coil (21, 22) arranged in a meander-like pattern on the outer surface (12) of the mold (10), such that a magnetic field generated by an alternating electric current flowing through the at least one main coil (21, 22) induces currents in at least parts of the mold (10) to be heated, and at least one perimeter coil (23, 24) arranged on the outer surface (12) of the mold (10) configured to delimit at least one area of the mold to be inductively heated. The at least one main coil (21, 22) and the at least one perimeter coil (23, 24) comprise litz wires which are electrically insulated from the mold (10) and in operative communication with at least one processing means.
B29C 70/44 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
H05B 6/10 - Induction heating apparatus, other than furnaces, for specific applications
B29C 35/08 - Heating or curing, e.g. crosslinking or vulcanising by wave energy or particle radiation
A system for controlled induction welding of at least one weld seam area (A) of at least two surfaces of at least one workpiece (20, 21) is provided. The system comprises an inductor (10) configured to be arranged in conjunction with the at least one workpiece (20, 21), a processing means (30) configured to generate an electromagnetic field by applying an alternating voltage to the inductor (10) so as to inductively heat at least one of the surfaces so that the weld seam area (A) is welded together, simultaneously measure at least one parameter (P) of the at least one workpiece (20, 21) at least based on the generated electromagnetic field, detect a change of the at least one parameter (P), and determine a temperature estimation of the at least one workpiece (20, 21) based on said detected change.
B29C 65/36 - Joining of preformed partsApparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
H05B 6/06 - Control, e.g. of temperature, of power
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
17 - Rubber and plastic; packing and insulating materials
22 - Rope, netting, tents, awnings, sails and sacks; padding and stuffing materials
28 - Games; toys; sports equipment
Goods & Services
Ball joints [parts of machines]; bearings; slide bearings
for any application or industrial field; bearings and
bushings [machine parts]; automation equipment, namely
fixtures, robots and presses; production hardware, namely
molds for fibre reinforced products (parts of machines);
induction welding equipment for assembly of thermoplastic
composites; heaters, coolers, heat exchangers, molds,
rollers, press plates (parts of machines). Inductors; inverters; frequency inverters. Induction heating equipment. Tubes, rotational symmetric parts, beams, profiles, tubing
containing carbon fibres; carbon fibre reinforced products;
carbon fibres, other than for textile use; carbon fibres for
use in industry; carbon fibres plates; thermal insulation
material; insulating materials for insulation against heat;
fiber reinforced radomes, fiber composites for use as
structural support; glass fibres for insulation; ceramic
fibres for insulation; synthetic fibres, other than for
textile use. Carbon fibers for textile use; glass fibres for textile use;
ceramic textile fibres; synthetic fibres for textile use. Golf clubs; hockey sticks; rods for fishing; skis.
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
17 - Rubber and plastic; packing and insulating materials
22 - Rope, netting, tents, awnings, sails and sacks; padding and stuffing materials
28 - Games; toys; sports equipment
Goods & Services
(1) Bearings, namely, anti-friction bearings for machines; slide bearings for any application or industrial field, namely, bearings as machine parts, ball rings for bearings; bearings and bushings for use as parts of machines; automation equipment, namely, ironing robots, labelling robots, industrial robots for welding, industrial robots for shaping metal, industrial robots for shaping wood, metal processing robots, robotic arms for loading, fodder presses, drill presses, blanking presses, basket presses, metal extrusion presses, molding presses; production hardware, namely molds being parts of machines for use in the manufacture of fibre reinforced goods; induction welding equipment for assembly of thermoplastic composites, namely, electric plasma cutters; heaters, water heaters being parts of machines, coolers, namely, oil coolers for engines, heat exchangers being parts of machines, molds, namely, thermoforming molds being parts of machines, punching molds being parts of machines, molding presses, rollers, namely, rollers for conveyor belts, roller chains being parts of machines, press plates, namely printing plates being parts of machines.
(2) Inductors; power inverters; frequency inverters.
(3) Induction heating equipment, namely induction heated moulds, induction heating welding equipment, electric induction hobs, induction furnaces, induction ovens, induction water heaters.
(4) Rotational symmetric parts, beams, profiles, tubing containing carbon fibres, namely, artificial resins in the form of tubes for use in manufacture; carbon fibre reinforced products, namely, thermal insulation and fire protection materials being fire resistant composite panels made of carbon fibers; carbon fibres, other than for textile use; carbon fibres for use in industry; carbon fibres plates; thermal insulation material, namely, fiberglass fabrics for building insulation, glass fibers for insulation, foam sheeting for use as building insulation, foils of metal for insulating; insulating materials for insulation against heat, namely, fire-resistant insulated panels; fiber reinforced radomes, fiber composites for use as structural support, namely, thermal insulation and fire protection materials being fire resistant composite panels made of aramid fibers, glass fibers, carbon fibers; glass fibres for insulation; ceramic fibres for insulation; synthetic fibres, other than for textile use, namely, spun polyester fiber, other than for textile use, molded and extruded plastic and synthetic fiber materials for use in the manufacture of hook and loop fasteners.
(5) Carbon fibers for textile use; glass fibres for textile use; ceramic textile fibres; synthetic fibres for textile use.
(6) Golf clubs; hockey sticks; rods for fishing.
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
17 - Rubber and plastic; packing and insulating materials
22 - Rope, netting, tents, awnings, sails and sacks; padding and stuffing materials
28 - Games; toys; sports equipment
Goods & Services
Machine parts, namely, ball joints in the nature of bearings; Machine parts, namely, bearings; slide bearings for machines; machine parts, namely, bearings and bushings; automation machine parts, namely, adjustable work holding fixtures for precision machining applications and industrial robots, partially made of carbon fiber reinforced plastic for composite manufacturing, trimming and assembly applications and industrial machine presses; production hardware machine parts, namely, forging moulds for fiber reinforced products; induction welding equipment for assembly of thermoplastic composites, namely, laser welding machines; machine parts, namely, heat exchangers being parts of machines, molds for use in composite manufacturing of bearings and bushings, industrial machine parts, namely, roller bearings made of fiber composites, machine parts, namely, induction heated industrial machine press plates Electrical inductors; inverters; frequency inverters Electrical induction heating apparatus for processing and joining of fiber composites Synthetic plastic as semi-finished products in form of tubes, plates, profiles, and rotational symmetric parts in the nature of foils, plates, rods, profiles, hoses, tubes, blocks, all the foregoing containing carbon fibers and not for textile use; Reinforced carbon fibers not for textile use; Reinforced glass fibers for insulation; Reinforced synthetic fibers for insulation Carbon fibers for textile use; glass fibers for textile use; synthetic ceramic materials being textile fibres; synthetic fibers for textile use Golf clubs; hockey sticks; rods for fishing; skis
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
17 - Rubber and plastic; packing and insulating materials
22 - Rope, netting, tents, awnings, sails and sacks; padding and stuffing materials
28 - Games; toys; sports equipment
Goods & Services
Ball joints [parts of machines]; Bearings; Slide bearings for any application or industrial field; Bearings and bushings [machine parts]; Automation equipment, namely fixtures, robots and presses; Production hardware, namely molds for fibre reinforced products (parts of machines); Induction welding equipment for assembly of thermoplastic composites; Heaters, coolers, heat exchangers, molds, rollers, press plates (parts of machines). Inductors; Inverters; Frequency inverters. Induction heating equipment. Tubes, rotational symmetric parts, beams, profiles, tubing containing carbon fibres; Carbon fibre reinforced products; Carbon fibres; Carbon fibres for use in industry; Carbon fibres plates; Thermal insulation material; Insulating materials for insulation against heat; Fiber reinforces radomes, fiber composites for use as structural support; Glass fibres for insulation; Ceramic fibres for insulation; Synthetic fibres, other than for textile use. Carbon fibers for textile use; Glass fibres for textile use; Ceramic textile fibres; Synthetic fibres for textile use. Golf clubs; Hockey sticks; Rods for fishing; Skis.
A friction connecting means includes a receiving element and engagement elements. The receiving element has a pressure pocket provided with a carbon fiber composite material layer.
F16B 1/00 - Devices for securing together, or preventing relative movement between, constructional elements or machine parts
F16D 1/08 - Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hubCouplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with hub and longitudinal key
A kinematic pair (10), e.g. a ball and socket joint, with at least a housing element (30) and an engagement element (20) where the engagement element (20) is arranged at least partly within the housing element (30) and configured to achieve a rotational and/or sliding movement relative the housing element (30). The housing element (30) is designed with at least one first carbon fiber composite material layer surrounding at least a part of the engagement element, a carbon fiber composite material wrapping arranged around at least a part of the first layer, and at least one second carbon fiber composite material layer arranged on the outside of the wrapping.
A friction connecting means (10) includes a receiving element (11) and engagement elements (12, 12'). The receiving element (11) has a pressure pocket provided with a carbon fiber composite material layer.
F16B 1/00 - Devices for securing together, or preventing relative movement between, constructional elements or machine parts
F16D 1/08 - Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hubCouplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with hub and longitudinal key
A kinematic pair, e.g. a ball and socket joint, with at least a housing element (30) and an engagement element (20) where the engagement element is arranged at least partly within the housing element and configured to achieve a rotational and/or sliding movement relative the housing element. The housing element is designed with at least one first carbon fiber composite material layer surrounding at least a part of the engagement element, a carbon fiber composite material wrapping arranged around at least a part of the first layer, and at least one second carbon fiber composite material layer arranged on the outside of the wrapping.
An apparatus for controllable heating is provided comprising at least one coil system (110) with at least one coil unit (111) connected to a power source, where the coil unit (111) is arranged to create a magnetic field. The apparatus further comprises at least one electric current conductor (120) which is arranged at least partly around said coil unit (111), and at least one element (130) which is configured to be heated and which is connected to the electric current conductor (120) in such a way that the electric current conductor (120) and the element (130) form a closed conduit. The magnetic field of the coil unit (111) is arranged to induce a voltage in the electric current conductor (120) and the element (130), where the induced voltage creates an electric current in the closed conduit, and where the element (130) is configured to be heated by the electric current.
A method includes a step of bringing a plastic matrix substance in contact with a reinforcement fiber structure to form an intermediate material. Further, the method includes a step of curing the matrix substance of the intermediate material to form a composite material. Before the plastic matrix substance is brought into contact with the reinforcement fiber structure, it is mixed with a diluent to form a mixture.
D06N 3/12 - Artificial leather, oilcloth, or like material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
B29C 70/50 - Shaping or impregnating by compression for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
B29C 70/48 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM]
D04H 3/12 - Non woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with filaments or yarns secured together by chemical or thermo-activatable bonding agents, e.g. adhesives, applied or incorporated in liquid or solid form
D06N 3/00 - Artificial leather, oilcloth, or like material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
B29C 70/20 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in a single direction, e.g. roving or other parallel fibres
B29C 70/22 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure
