Disclosed is a preparation device and a preparation method for a medium borosilicate medicinal glass tube and relates to a technical field of medicinal glass tube preparation. The preparation device includes a melting system, a forming system and a cutting system. The forming system includes a muffle furnace, a shaping furnace, and an annealing furnace set vertically from top to bottom. In an annular seam between a feeder and a guide pipe in the muffle furnace and an inner wall of a furnace channel, the molten glass is pushed downward by gravity of the molten glass and a push pressure of the annular seam and enters the shaping furnace. A pulling tube system is provided with traction rollers and guide clamping rings to clamp and position the molten glass, and the traction rollers clamp the molten glass, so that the molten glass is continuously pulled to form the glass tube under the joint action of the gravity of molten glass and the rotation force of the traction rollers. The thickness of the glass tube prepared by the preparation device is uniform, and a whole preparation process is simple, which avoids complicated process and ensures an internal and external quality of the glass tube, and the preparation device has a simple structure, which is easy to maintain and also reduces cost and energy consumption.
Devices and methods for measuring erosion resistance of electrofused high zirconia bricks are provided. The devices include a crucible, a crucible cover, a positioning axis, a plurality of holes, and a plurality of fixing members. The crucible cover is installed on an opening of the crucible, the positioning axis is installed at a center of the crucible cover, the plurality of holes are uniformly disposed along a circumferential direction of the crucible cover, and the plurality of fixing members are installed on the plurality of holes.
C04B 35/48 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on zirconium or hafnium oxides or zirconates or hafnates
Some embodiments of the present disclosure provide electric heating devices and methods for kilns of substrate glass, relating to the field of arrangements of electric heating structures for the kilns of substrate glass. To address the problem of insufficient melting in front zones of kilns of high-generation and large-tonnage substrate glass, a heating structure combining side-stack tin oxide electrode bricks and bottom-inserted molybdenum electrodes is designed. A comprehensive thermal efficiency of the kiln is determined by introducing an appropriate amount of gas and determining an energy consumption of glass melting and a thermal energy contribution of gas and electricity under an extraction volume. This leads to a novel electric heating device for the kiln of high-generation and large-feeding substrate glass and a method thereof, effectively solving the problem of insufficient melting and unstable convection in the front zone of the kiln.
Disclosed is a clamping device at an edge of a substrate glass during molding based on an overflow technique and an operation method thereof. The clamping device comprises a primary clamping unit and a secondary edge drawing unit that are clamped on edges of two sides of a glass plate, respectively. The primary clamping unit is arranged above the secondary edge drawing unit and is closer to a guide plate than the secondary edge drawing unit. The operation method comprises during the molding of the glass plate, enabling clamping wheels of the primary clamping unit and wheels for cooling and edge drawing of the secondary edge drawing unit to clamp the edges of the two sides of the glass plate to make liquid glass at the edges merge and bond together to obtain a bonded glass plate; and introducing cooling air to cool edges of the bonded glass plate.
Disclosed is a hot-state efficient filling device and method for a root of a flange of a clarification section of a platinum channel, comprising a material conveying structure. A refractory brick channel is provided outside the clarification section of the platinum channel, the clarification section of the platinum channel includes a platinum body and the flange, a cavity region is provided between the flange and the refractory brick channel, one or more filling observation openings are formed on the refractory brick channel corresponding to the cavity region, a transmission end of the flange penetrates through the one or more filling observation openings, the material conveying structure penetrates through the one or more filling observation openings, an input end of the material conveying structure is provided outside the refractory brick channel, and a reserved distance is arranged between the output end of the material conveying structure and the platinum body.
Disclosed is a high-hardness electronic glass and its preparation method. Raw materials of the high-hardness electronic glass include components, by a mass percentage, consisting of: 58.3%-62.93% of SiO2, 23.02%-25.94% of Al2O3, 1.95%-5.02% of B2O3, 2.07%-4.21% of Li2O, 0%-2.88% of Na2O, 0%-2.29% of K2O, 0%-3.30% of TiO2, 0%-3.99% of ZrO2, and 0%-4.17% of P2O5, and a sum of the mass percentages of the components is 100%.
C03C 10/00 - Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
C03B 19/02 - Other methods of shaping glass by casting
C03B 25/02 - Annealing glass products in a discontinuous way
C03B 32/02 - Thermal crystallisation, e.g. for crystallising glass bodies into glass-ceramic articles
7.
DEVICES AND METHODS FOR PREVENTING A COOLING FLAT TUBE OF A PLATINUM CHANNEL FROM COLLAPSING DURING WARMING
Devices and methods for preventing a cooling flat tube of a platinum channel from collapsing during warming are provided. The devices include a traction structure. The cooling flat tube is externally wrapped with a plurality of heater modules. There may be a gap between the cooling flat tube and the plurality of heater modules. A docking seam is disposed between every two docked heater modules. The traction structure is disposed on an outer surface of the cooling flat tube and includes a traction hanging bar. A position of the traction hanging bar coincides with a position of the docking seam. By designing the special traction structure on the upper surface of the cooling flat tube, combined with a matching mounting manner, the stability of a cross section structure of the cooling flat tube during warming is realized, and the cooling flat tube is prevented from deforming and collapsing during warming.
The present disclosure provides a device and method for measuring a high-temperature resistivity of a tin oxide electrode in a substrate glass furnace, which relates to the field of high-temperature resistivity measurement of tin oxide electrodes. The two ends of a columnar tin oxide electrode are provided with platinum terminals, which are connected to a direct-current dual-arm bridge using platinum wires. The upper and lower side of the columnar tin oxide electrode are provided with fixed insulating spacers that are made of an aluminum oxide material. The device is placed in a high-temperature pit furnace. A heating program is set up to measure the corresponding values of the direct-current dual-arm bridge at different temperatures. Based on the resistivity calculating principle, the volume resistivities of the tin oxide electrode corresponding to different temperatures are calculated, which provide an electrical parameter reference for electrode melting of high-generation substrate glass when applying electricity.
The present disclosure provides an embodiment of a heat dissipation device for a channel cooling section and an application method, belonging to a field of substrate glass manufacturing technology. The device includes a side refractory brick, a top refractory brick, a bottom supporting refractory brick, and at least one heat sink. The side refractory brick includes a first side refractory brick and a second side refractory brick. The first side refractory brick and the second side refractory brick are arranged opposite to each other. The top refractory brick is spliced above the first side refractory brick and the second side refractory brick, while the bottom supporting refractory brick is spliced below the first side refractory brick and the second side refractory brick. A cavity structure is formed after the splicing is completed. The first side refractory brick, the second side refractory brick, and the top refractory brick are arranged with a plurality of heat dissipation gaps, and at least one of these gaps is installed with the at least one heat sink. The present disclosure can effectively enhance the heat dissipation efficiency of the channel cooling section and is flexible, controllable, and can be used on a large scale.
Embodiments of the present disclosure provide a device and method for controlling an extraction amount and homogenizing glass liquid, comprising a feeding device and an auxiliary heating device. The feeding device includes a feeding inner pipe and a feeding outer pipe, the feeding inner pipe being provided inside the feeding outer pipe. The feeding outer pipe includes a feeding upper outer pipe, a feeding middle outer pipe, a feeding lower outer pipe, and a tapered pipe, the feeding upper outer pipe being mounted at an upper end of the feeding middle outer pipe, the feeding lower outer pipe being installed at a lower end of the feeding middle outer pipe, and the feeding upper outer pipe, the feeding middle outer pipe, and the feeding lower outer pipe being connected through the tapered pipe, and the auxiliary heating device includes an inner heater and an outer heater.
The present invention relates to the technical field of substrate glass manufacturing. Disclosed are a heat dissipation apparatus for a channel cooling section, and a use method. The apparatus comprises side refractory bricks, a top refractory brick, a bottom supporting refractory brick, and heat dissipation fins. The side refractory bricks comprise a first side refractory brick and a second side refractory brick. The first side refractory brick and the second side refractory brick are placed opposite to each other, the top refractory brick is assembled on the upper portions of the first side refractory brick and the second side refractory brick, and the bottom supporting refractory brick is assembled on the lower portions of the first side refractory brick and the second side refractory brick, such that a cavity structure is formed. A plurality of heat dissipation gaps are uniformly distributed in the first side refractory brick, the second side refractory brick, and the top refractory brick, and the heat dissipation fins are arranged in the heat dissipation gaps. The present invention can effectively improve the heat dissipation efficiency of a cooling section, achieves flexible and controllable operation, and can be widely used.
A device and method for measuring the erosion resistance of an electric melting high-zirconium brick of a substrate glass kiln, relating to the field of property testing of refractory materials for advanced-generation substrate glass kilns. A matched crucible cover is mounted at an opening of a crucible (3) in the device, a positioning shaft (5) is mounted on the center of the crucible cover, the crucible cover is circumferentially and uniformly provided with a plurality of square holes, and fixing parts are mounted on the square holes. The method comprises: by means of designing the device for measuring the erosion resistance of an electric melting high-zirconium brick, processing an electric melting high-zirconium brick into a sample (2) having a required size; measuring the initial size and then fixing same in the crucible (3); preparing a substrate glass batch (4) according to a product ratio in the crucible (3); and placing same in a high-temperature furnace, performing heat preservation at a simulated process temperature, then performing furnace cooling, and measuring the depth change of the sample size before and after the sample is eroded, so as to accurately calculate the glass erosion rate of the electric melting high-zirconium brick. Therefore, the present application can provide an experimental basis for material selection of electric melting high-zirconium bricks for production line kilns.
The present invention relates to the technical field of pharmaceutical glass tube preparation, and provides a preparation device for a neutral borosilicate pharmaceutical glass tube, and a method. The preparation device provided by the present invention comprises a melting system, a forming system, and a cutting system. The forming system comprises a muffle furnace, a shaping furnace, and an annealing furnace which are vertically arranged from top to bottom. In an annular gap between a material chute and a guide pipe in the muffle furnace and the inner wall of a furnace body channel, molten glass is pushed downward under the gravity of the molten glass and the thrust of the annular gap, to enter the shaping furnace. A tube pulling system is provided with traction rollers and guide clamping rings for clamping and positioning glass tubes. The traction rollers clamp a glass melt to enable the glass melt to be continuously drawn under the combined action of the gravity of the glass melt and the autorotation force of the traction rollers, so as to form a glass tube. The glass tube prepared by the device has a uniform thickness, the whole preparation process is simple, the complex process is avoided and the internal and external quality of the glass tube is also guaranteed, the preparation device of the present invention has a simple structure and is convenient to maintain, and the cost and the energy consumption are further reduced.
An electric heating device and method for a high-generation large-tonnage substrate glass kiln, relating to the field of arrangement of electric heating structures of high-generation large-tonnage substrate glass kilns. In order to solve the problem of insufficient melting in front zones of high-generation large-tonnage substrate glass kilns, the present application designs an electric heating structure combining tin oxide electrodes stacked on sides with bottom-insertion type molybdenum electrodes, then feeds a proper amount of gas, and calculates the energy consumption of glass melting and the energy in gas and electricity under the current extraction amount, so as to further calculate the overall thermal efficiency of the kiln, thereby developing the novel electric heating device and method satisfying high-generation substrate glass kilns having large material feeding amounts. Said device and method can solve the problems such as insufficient melting and instable convection in front zones of high-generation large-tonnage substrate glass kilns.
C03B 5/033 - Melting in furnacesFurnaces so far as specially adapted for glass manufacture in electric furnaces by using resistance heaters above or in the glass bath, i.e. by indirect resistance heating
C03B 5/16 - Special features of the melting processAuxiliary means specially adapted for glass-melting furnaces
15.
APPARATUS AND METHOD FOR MEASURING HIGH-TEMPERATURE RESISTIVITY OF TIN OXIDE ELECTRODE OF GLASS SUBSTRATE KILN
An apparatus and method for measuring the high-temperature resistivity of a tin oxide electrode of a glass substrate kiln. The present apparatus installs platinum terminals (3) at two ends of a columnar tin oxide electrode sample; then a platinum wire (4) is used to connect to a direct-current double-arm bridge (6); fixing and insulating gaskets made of an aluminum oxide material are disposed at the top and bottom of a base portion of the columnar tin oxide electrode; then the measuring apparatus is placed in a high-temperature pit furnace, and a heating program is configured to measure corresponding direct-current double-arm bridge (6) values at different temperatures; on the basis of a resistivity calculation principle, the corresponding volume resistivity of the tin oxide electrode at different temperatures is calculated, to provide an electrical parameter reference basis for power supply for electrode glass melting of advanced-generation glass substrate.
The present invention belongs to the field of manufacturing of glass substrates. Disclosed are a glass substrate material feeding device and method capable of introduction quantity control and molten glass homogenization. The device comprises a material feeding device and an auxiliary heating device. The material feeding device consists of an inner material-feeding pipe and an outer material-feeding pipe, wherein the inner material-feeding pipe is arranged in the outer material-feeding pipe; and the outer material-feeding pipe consists of an upper outer material-feeding pipe, a middle outer material-feeding pipe, a lower outer material-feeding pipe and round reducer pipes, the upper outer material-feeding pipe being mounted at an upper port of the middle outer material-feeding pipe, the lower outer material-feeding pipe being mounted at a lower port of the middle outer material-feeding pipe, and the upper outer material-feeding pipe, the middle outer material-feeding pipe and the lower outer material-feeding pipe being connected to each other by means of the round reducer pipes. The auxiliary heating device consists of an inner heater and an outer heater. In the present invention, by adjusting differential currents of the inner heater and the outer heater, the interior and exterior of molten glass are simultaneously heated, and the temperatures of the interior and exterior of the molten glass increase and decrease simultaneously, thereby ensuring temperature uniformity of the molten glass after heating or cooling, shortening the reaction time for introduction quantity regulation, and achieving accurate control over the introduction quantity.
The present invention belongs to the technical field of manufacturing of glass substrates. Disclosed are a device and method for preventing the collapse of a cooling flat tube of a platinum channel during a heating process. The device comprises traction structures, wherein a cooling flat tube is externally covered with heater modules; several heater modules are provided, and an abutment gap is present between every two abutted heater modules; and each traction structure is arranged on an outer surface of the cooling flat tube, and comprises a traction hanging bar, the position of the traction hanging bar coinciding with the position of the abutment gap, an extending end of the traction hanging bar extending out of the abutment gap, the extending end being connected to one end of a heater module, and the height of the traction hanging bar being equal to the distance between the cooling flat tube and the heater modules. The present invention mainly aims to improve the reliability of a cooling flat tube of a platinum channel, and by designing special traction structures on an upper surface of the cooling flat tube and combining a matched mounting method, the stability of the cross-sectional structure of the cooling flat tube during a heating process can be achieved, thereby preventing deformation and collapse of the cooling flat tube during the heating process.
Disclosed in the present invention are a device for edge clamping during overflow method-based substrate glass molding, and a working method thereof. The device comprises a first-stage clamping unit and a second-stage edge drawing unit; the first-stage clamping unit and the second-stage edge drawing unit each clamp the edges of a glass substrate on two sides thereof, the first-stage clamping unit is arranged above the second-stage edge drawing unit, and the first-stage clamping unit is closer to a flow guide plate than the second-stage edge drawing unit. Under the combined action of clamping and edge drawing, the present invention achieves a good glass substrate edge state, promotes bonding of glass edges in a high-temperature state, overcomes substrate edge quality defects of a glass substrate within clamped areas thereof such as poor adhesion, hollowed-out edges, misalignment, and sudden thickness changes in substrate edges and effective transition areas due to temperature drop and a low clamping position during substrate edge clamping, and improves the edge clamping and production stability during molding.
The present invention belongs to the technical field of manufacturing of glass substrates. Disclosed are an efficient hot filling device and method for a flange root in a clarification section of a platinum channel. The device comprises a material-conveying structure, wherein a refractory brick channel is provided outside a clarification section of a platinum channel; the clarification section of the platinum channel comprises a platinum body and a flange, and a cavity area is provided between the flange and the refractory brick channel and configured for normal expansion of the flange in a heating process; a filling observation opening is provided in the refractory brick channel corresponding to the cavity area; a conveying end of the flange runs through the filling observation opening; the material-conveying structure runs through the filling observation opening; an output end of the material-conveying structure is arranged in the cavity area, and an input end of the material-conveying structure is arranged outside the refractory brick channel; and a reserved distance is set between the output end of the material-conveying structure and the platinum body. By using the material-conveying structure, the present invention can effectively improve the hot filling compactness of a flange root, shorten the operation time, save on time and economic costs, and has a very strong use value.
GEYEEJEEE and the glass substrate effective utilization rate λ, so as to meet the process requirements of stabilizing guide plates during manufacturing on glass substrate production lines. The present invention can effectively solve the problem of guide plate fluctuations during on-site forming after the discharge volume is increased, thus optimizing the forming thickness distribution of glass substrate manufacturing, increasing the production margin from the design, and ensuring the edge plate thickness and consistency of glass substrates.
The present disclosure provides a side plate controlling system for increasing a lead-out amount of an overflow brick including a data acquisition module for obtaining relevant data of a standard overflow brick system; a selection module for determining an actual overflow coefficient and an actual width of the overflow surface of an actual overflow brick system; a width shrinkage module for determining an actual critical shrinkage width; a side plate flow module for determining an average shrinkage flow rate of a side plate; an edge elongation factor module is configured to determine an edge elongation factor; a side plate thickness module for determining an average thickness of the side plate; a judgment output module for determining whether or not a magnitude relationship average thickness of the side plate and the thickness of the glass substrate satisfies a preset corresponding relationship, output the actual overflow coefficient.
Embodiments of the present disclosure provide a system and method for designing a manufacturing and mixing system of a glass substrate. The system includes an initial module configured to establish an equivalence relationship for determining at least one initial design parameter of an actual mixing system; a prediction module configured to predict a predicted mixing effect of the actual mixing system; a verification module configured to determine at least one optimized design parameter; a pre-processing module configured to convert the at least one optimized design parameter into a reference code, obtain a label corresponding to reference data of the glass melt, and store the reference code and the label; a recommendation module configured to determine initial melt data of a glass melt to be processed and determine a target label; and determine a target code and convert the target code to at least one target design parameter.
G06F 30/27 - Design optimisation, verification or simulation using machine learning, e.g. artificial intelligence, neural networks, support vector machines [SVM] or training a model
G06F 30/12 - Geometric CAD characterised by design entry means specially adapted for CAD, e.g. graphical user interfaces [GUI] specially adapted for CAD
G06F 30/17 - Mechanical parametric or variational design
24.
METHOD AND SYSTEM FOR DESIGNING STIRRING SYSTEM FOR GLASS SUBSTRATE MANUFACTURING
A method and system for designing a stirring system for glass substrate manufacturing, which method and system belong to the field of glass substrate manufacturing. The method comprises: acquiring parameters of a reference stirring system, such as the sweep height of blades of a stirrer, a lead-out volume, the inner diameter of a stirring tank, the diameter of the blades of the stirrer, the power of the stirrer, the rotational speed of the stirrer and the torque of the stirrer; respectively establishing a shear stress equivalence relationship and a stirring effect equivalence relationship; and performing calculation according to a correspondence, so as to obtain the inner diameter of an actual stirring tank of an actual stirring system, the diameter of blades of an actual stirrer of same, and the sweep height of the blades of the actual stirrer, thereby completing the design of the actual stirring system. In the method, on the basis of a reference stirring system and a shear stress equivalence and a stirring effect equivalence, design criteria for the sweep height of stirring blades, the diameter of the stirring blades and the inner diameter of a stirring tank are established, and the creep of a stirring shaft and the optimization of system costs are both taken into consideration, such that the technical requirements for a high-efficiency stirring effect that has a high degree of uniformity can be met, thereby meeting requirements for a higher generation and a larger lead-out volume.
Devices for a horizontal secondary stretching of ultra-thin flexible glass are provided. The device includes: a feeding unit, a welding unit, a preheating unit, a transverse stretching extension unit, a longitudinal traction stretching unit, an annealing unit, and a winding and wrapping unit connected in sequence. Each of the feeding unit, the welding unit, the preheating unit, the transverse stretching extension unit, the longitudinal traction stretching unit, the annealing unit, and the winding and wrapping unit is provided with an air floatation device and a roller. Each of the preheating unit, the transverse stretching extension unit, the longitudinal traction stretching unit, and the annealing unit is provided with a heating unit. Each of the longitudinal traction stretching unit and the annealing unit is provided with a cooling mechanism.
The present invention relates to the technical field of flexible glass manufacturing. Disclosed are a horizontal secondary stretching apparatus and method for ultra-thin flexible glass. The horizontal secondary stretching apparatus for ultra-thin flexible glass comprises air floatation apparatuses, heating units, cooling mechanisms, and a feeding unit, a welding unit, a preheating unit, a transverse stretching extension unit, a longitudinal traction stretching unit, an annealing unit and a winding and wrapping unit which are connected in sequence. The air flotation apparatuses can adjust a pressure difference between the upper and lower sides of a glass plate, thereby solving the problem of downward bending of the glass plate in the transverse conveying process, and ensuring the heating and annealing quality. The welding unit performs butt welding on raw glass sheets in the conveying process to realize continuous feeding. The horizontal secondary stretching apparatus is designed as a multi-layer structure, comprises vapor chambers and externally arranged heating and cooling units, and provides a good temperature gradient field in the heating and cooling annealing process of the raw glass sheets. The horizontal secondary stretching apparatus can realize secondary stretching and continuous production of flexible glass, and overcomes the defects in the prior art of small plate width, high cost, and non-continuous production.
The present invention provides a device and method for adjusting an electrode of an electronic glass furnace. The device comprises a base, a first adjusting block, and a second adjusting block; the first adjusting block is horizontally and slidably arranged on the base, the top surface of the first adjusting block is in sliding contact with the bottom surface of the second adjusting block, a contact surface is an inclined surface, and the top of the second adjusting block abuts against the end of the bottom of the furnace electrode away from a pool wall; an extendable/retractable mechanism is arranged at one end of the base, an extendable/retractable end of the extendable/retractable mechanism is connected to the first adjusting block, and the extendable/retractable mechanism abuts against one side of the second adjusting block. According to the present application, by means of the extendable/retractable mechanism, the first adjusting block slides on the base and is close to the lower one of the two ends of the top of the furnace electrode; the second adjusting block moves upwards or downwards due to the first adjusting block along the vertical height, and then the furnace electrode is driven to move upwards or downwards, so that correction of the furnace electrode is completed, dislocation is eliminated, and the stability and safety of glass processing can be improved.
C03B 5/027 - Melting in furnacesFurnaces so far as specially adapted for glass manufacture in electric furnaces by passing an electric current between electrodes immersed in the glass bath, i.e. by direct resistance heating
C03B 5/43 - Use of materials for furnace walls, e.g. fire-bricks
Disclosed are flexible glass and a preparation method therefor; weight proportions of the raw materials used in the flexible glass are: 60.04-63.01 parts silicon dioxide, 16.7-21.5 parts aluminum oxide, 12.93-19.85 parts boron oxide, 2.43-14.19 parts calcium carbonate, 0.16-2.07 parts magnesium oxide. 0.5-2.74 parts strontium carbonate and 0-4.16 parts barium nitrate. The method includes: step 1: pouring raw materials into a mixer, and uniformly mixing to form a mixture; step 2: adding the mixture into a glass furnace, heating to melt the glass, and the melted glass entering a platinum feeding channel for clarification and flowing into a tube drawing tunnel; step 3: drawing the liquid glass into a long glass tube; step 4: using a laser cutting machine to transversely and longitudinally cut the glass tube according to specification requirements, forming a glass sheet; step 5: inspecting the glass sheet, and preparing a flexible glass product.
Disclosed are electronic glass having high liquidus viscosity and a preparation method. The proportions of the raw materials used in the electronic glass are: SiO2: 65.56-68.6%; Al2O3: 10.58-14%; B2O3: 7-11%; SrO: 0.27-3.26%; BaO: 7.20-10.12%; CaO: 0.22-1.22%; MgO: 0-1.05%; MgO+CaO+SrO+BaO<13%; and the liquidus viscosity of the electronic glass is greater than 200,000 poise. The minimum value of the temperature corresponding to a liquidus temperature reduction of 100,000 poise in the electronic glass is 22° C. The electronic glass has a strain point temperature of 670-739° C., a Young's modulus of 70-83 GPa, and a density of 2.38-2.45 g/cm3, the liquidus viscosity is ensured to be higher than 200,000 poise, the electronic glass is well suited to overflow downdraw forming, and a relatively low density value can be obtained.
A device and method for adjustable heat dissipation in a channel cooling section are provided. The device for heat dissipation may include: a plurality of flat tubes arranged adjacent to each other inside the channel cooling section. Each of the flat tubes may be surrounded by a heater on an outer ring. A side insulation structure may be provided on both sides of each of the flat tubes, and a top insulation structure may be provided at a top of each of the flat tubes. The method for heat dissipation may include performing a first disassembly on the each section of flat tube one by one in sequence.
The present invention provides a channel cooling section adjustable heat dissipation apparatus and method, capable of adjusting the heat dissipation of cooling sections to satisfy heat dissipation requirements and simultaneously ensure the basic safety and reliability of a device, and having a simple structure and convenient operation. The apparatus comprises a plurality of sections of flat pipe arranged neighboring one another in a cooling section, a heater being arranged surrounding an outer ring of a flat pipe, and each section of flat pipe having lateral insulation structures disposed at two sides thereof and a top insulation structure at a top end thereof; wherein, the lateral insulation structures comprise an outer lateral insulation part, a lateral clamping part and an inner lateral insulation part; one surface of the inner lateral insulation part is matched and attached to a lateral part of a flat pipe, the other surface of the inner lateral insulation part is attached to the outer lateral insulation part, and two ends of the inner lateral insulation part are each provided with a lateral clamping part; the top insulation structure comprises a top insulation part arranged at the top end of the flat pipe and top clamping parts arranged at two ends of the top insulation part.
223233: 7-11%; SrO: 0.27-3.26%; BaO: 7.20-10.12%; CaO: 0.22-1.22%; MgO: 0-1.05%; MgO + CaO + SrO + BaO < 13%; and the liquidus viscosity of the electronic glass is greater than 200,000 poise. The minimum value of the temperature corresponding to a liquidus temperature reduction of 100,000 poise in the electronic glass is 22°C. The electronic glass has a strain point temperature of 670-739°C, a Young's modulus of 70-83 MPa, and a density of 2.38-2.45 g/cm3, the liquidus viscosity is ensured to be higher than 200,000 poise, the electronic glass is well suited to overflow downdraw forming, and a relatively low density value can be obtained.
Disclosed are flexible glass and a preparation method therefor; the weight ratio of the raw materials used in the flexible glass is: 60.04-63.01 parts silicon dioxide, 16.7-21.5 parts aluminum oxide, 12.93-19.85 parts boron oxide, 2.43-14.19 parts calcium carbonate, 0.16-2.07 parts magnesium oxide, 0.5-2.74 parts strontium carbonate and 0.12-4.16 parts barium nitrate. The method comprises: step 1: pouring raw materials into a mixer, and uniformly mixing to form a mixture; step 2: adding the mixture obtained in step 1 into a glass furnace via a feeding machine, heating to melt the glass, and the melted glass entering a platinum feeding channel for clarification and flowing into a tube drawing tunnel; step 3: in the tube drawing tunnel, drawing the liquid glass into a long glass tube by means of a tube drawing traction machine, the inside of the tube drawing tunnel having a polar atmosphere; step 4: using a laser cutting machine to transversely and longitudinally cut the glass tube according to specification requirements, forming a glass sheet; step 5: inspecting the glass sheet, and preparing a flexible glass product.
Provided is a sheet forming thickness control method of an overflow brick, including: S1: obtaining a free flow thickness distribution and a free flow speed distribution of an overflow of a glass on an overflow surface of the overflow brick through simulation; S2: calculating an equivalent drawing speed distribution of an overflow guide plate and a critical equivalent drawing speed of the overflow guide plate; S3: calculating an equivalent drawing thickness distribution and a forming thickness distribution of the overflow of the glass; S4: calculating an extreme thickness difference of a formed glass substrate; and S5: when the extreme thickness difference is greater than a preset threshold, changing current parameters and repeating steps S1 to S4; and when the extreme thickness difference is smaller than or equal to the preset threshold, processing the overflow brick and producing the glass substrate in accordance with the current parameters.
Provided is a groove bottom curve design optimization method for an overflow brick, including: S1: obtaining a standard output of the overflow brick based on design parameters; S2: obtaining an initial groove bottom curve of the overflow brick based on the design parameters and the standard output; S3: obtaining a groove bottom curve of the overflow brick through straight line correction of the initial groove bottom curve based on a length of a splitting block; S4: obtaining an extreme thickness difference of a formed glass substrate through overflow simulation based on the groove bottom curve and the design parameters; and S5: when the extreme thickness difference is smaller than or equal to a preset threshold, processing the overflow brick using the groove bottom curve and the design parameters; and when the extreme thickness difference is greater than the preset threshold, adjusting the design parameters and repeating steps S1 to S4.
The present invention relates to the field of glass substrate manufacturing, and disclosed are an overflow brick and a groove bottom curve design optimization method therefor. The method comprises: S1, obtaining a standard lead-out amount of an overflow brick according to design parameters of the overflow brick; S2, obtaining an initial overflow brick groove bottom curve according to the standard lead-out amount of the overflow brick; S3, performing rectilinear correction on the initial overflow brick groove bottom curve according to the length of an overflow brick shunting block to obtain an overflow brick groove bottom curve; S4, obtaining, according to the overflow brick groove bottom curve and the design parameters of the overflow brick, a thickness range of a formed glass substrate by means of overflow simulation; and S5, when the thickness range of the formed glass substrate is smaller than or equal to a preset threshold, using the overflow brick groove bottom curve and the design parameters of the overflow brick to perform overflow brick machining, and when the thickness range of the formed glass substrate is greater than the preset threshold, adjusting the design parameters of the overflow brick and repeating steps S1-S4. The problem of fluctuation of the forming thickness of a glass substrate is solved, and the production allowance is increased in design, so that the forming thickness of the glass substrate can satisfy the requirements.
Disclosed is a sheet forming thickness control method for an overflow brick. The method comprises: S1: obtaining free flow thickness distribution and free flow speed distribution of glass overflow on an overflow face of an overflow brick by means of analog simulation; S2: calculating equivalent pulling speed distribution of an overflow guide plate and a critical equivalent pulling speed of the overflow guide plate; S3: calculating equivalent pulling thickness distribution and forming thickness distribution of the glass overflow; S4: calculating a thickness range of a formed glass substrate; and S5: when the thickness range of the formed glass substrate is greater than a preset threshold, changing the current parameters and repeating S1-S4, and when the thickness range of the formed glass substrate is greater than or equal to the preset threshold, carrying out overflow brick processing and glass substrate production according to the current parameters. The method effectively solves the problem of forming thickness fluctuation of a glass substrate, increases the production margin in terms of design, makes the forming thickness of the glass substrate satisfy requirements, and thus reduces complex requirements for process adjustment and maintains the stability of a production line.
patents
