32 results about "Glass forming" patented technology

This invention discloses a glass forming apparatus and a glass forming furnace that facilitates the assembly and disassembly of clamping rollers. The apparatus includes a furnace body, a first sealing window on a first side wall of the furnace body, and a window sealing mechanism for sealing the first sealing window. The window sealing mechanism includes two clamps and a sealing baffle. The two clamps are respectively fixed to the left and right sides of the first side wall of the first sealing window. The sealing baffle has two second sealing windows arranged along a second horizontal direction in its center. Each second sealing window contains a sliding plate that slides along the second horizontal direction, and the sliding plate has a through hole for the clamping roller to pass through. The left and right sides of the sealing baffle are respectively provided with clamp receiving platforms for pressing against the clamps. The clamps press against the clamp receiving platforms to seal the first sealing window. This invention allows for quick opening of the first sealing window when the clamping roller needs to be replaced without affecting the flexible floating of the clamping roller.

The application discloses an energy-saving glass forming machine and relates to the technical field of glass forming machines, which comprises a blowing device and an operation table, the operation table is fixedly connected with a driving motor and a guide rod, the output shaft of the driving motor is fixedly connected with a reciprocating screw rod, and the guide rod is symmetrically screw-connected with a mold; after the blowing work is completed by the blowing head, the scraper can clean the blowing head, the device is rotated around the outer ring surface of the blowing head by the scraper, so that the glass residue on the outer ring surface of the blowing head is timely removed, the blowing of the blowing device is ensured to be smooth, the residues are prevented from adhering to the mouth of the next glass bottle, the scraper is used for cleaning after each blowing, the residues of the glass caused by untimely cleaning can be effectively avoided, the defective products or waste products caused by the residues of the glass can be solved, the residues of the glass adhered to the blowing head after each blowing of the blowing device are removed, the defective products and the substandard products caused by the residues of the glass can be solved, and therefore, resource waste and the waste product rate are reduced.

The utility model relates to glass forming technical field, concretely is a kind of glassware forming equipment, including adjusting mechanism between the blow head and bottle mouth mould, the adjusting mechanism includes tube body, and tube body top end is fixedly connected with connecting hopper, the connecting hopper is fixedly connected with blow head, the tube body bottom is detachably connected with bottle mouth mould, the tube body inside is provided with moving pipe, and moving pipe is bottom end seal structure, multiple air injection holes are set in the moving pipe outer wall bottom end. In the utility model, by connecting connecting hopper with blow head, gas enters the inside of moving pipe through connecting hopper, by starting air pump, space between sealing ring and rubber ring can be injected or sucked gas by using conduit, so as to adjust the position of moving pipe, so that moving pipe can be inserted into mould inside, and then gas is sprayed out by air injection hole to blow and press each part of bottle body, so as to improve bottle body forming precision.

This invention proposes a double-layer soundproof and heat-insulating insulating glass forming device, comprising: a first support frame, further comprising an I-beam frame mounted on the first support frame, the I-beam frame being used to improve the stability and strength of the first support frame; a movable roller, the movable roller being rotatably mounted on the first support frame; a conveyor belt, the conveyor belt being sleeved outside the movable roller, the rotation of the movable roller driving the conveyor belt for transport; a second support frame, the second support frame being mounted on top of the first support frame; and a linear drive unit, the linear drive unit being mounted on the second support frame. During the pressing process, this invention uses a rectangular frame to compress and fix the glass bonding points, and the center of the rectangular frame is hollowed out, so that only the bonding points are pressed down, increasing the pressure and achieving the best pressing effect with less energy, thus saving energy.

The invention relates to a method for molding a glass article (10), in particular a three-dimensionally molded flat glass article, wherein the following steps are carried out: placing a glass sheet (10), for example a flat glass panel of homogeneous thickness or a flat glass panel of non-homogeneous thickness or a pre-molded flat glass panel or liquid glass distributed over an area, between a molding plunger (20) and a molten mass of liquid metal (30), in particular tin; controlling the temperature of at least a part to be molded of the glass sheet (10) to a glass forming temperature, at which the glass has a viscosity in the range of 10 Pas to 106.5 Pas, preferably in the range of 10 Pas to 104 Pas and particularly preferably in the range of 10 Pas to 103 Pas;molding the glass sheet (10) by means of the molding plunger (20) and moving one surface of the molten metal (30) towards the other, preferably by at least one linear motion, for example, by means of a linear motor or a servomotor, so that pressure is applied to the glass sheet (10) on one side by the molding plunger (20) and by the molten metal (30) on the other side, and the glass sheet is molded by applying pressure from both sides and / or by suction and forming the glass sheet (10) on the molding plunger (20); cooling the molded glass sheet (10) to a handling temperature lower than the forming temperature at which the glass has a viscosity of ≥ 107 Pa·s; and removing the cooled sheet (10) from the mold. The invention also relates to a device for carrying out the method and to the use of a molten metal for carrying out the method.

The utility model relates to red wine cup production equipment technical field especially, a kind of concave bottom red wine cup forming device, including first mould component assembly and second mould component assembly, the first mould component assembly and the second mould component assembly are all installed on splicing component, and the first mould component assembly and the second mould component assembly buckle formation rotating mould component, the rotating mould component bottom has polygonal cavity;Bottom die component, the bottom die component is installed on lifting assembly, and the bottom die component has the boss cooperation with the polygonal cavity, and the height of the boss middle part is higher than the height of the rotating mould component bottom. The present application is conducive to reducing the generation of red wine cup bottom circle joint line, improve the overall smoothness of concave bottom red wine cup.

A glass forming apparatus is disclosed, comprising a glass conveying device and a hot extraction assembly. The glass conveying device includes a trough through which molten glass flows to form a glass ribbon, and the trough includes a plurality of channels formed therein. The hot extraction assembly includes an outer tube, an inner tube, a cooling fluid source, and a drain manifold. The outer tube includes a proximal end and a distal end connected to one of the plurality of channels. The inner tube extends within the outer cavity of the outer tube. The cooling fluid source is fluidly coupled to the inner tube to supply cooling fluid into the inner cavity of the inner tube. The drain manifold is fluidly coupled to a drain channel defined between the inner tube and the outer tube for draining the cooling fluid.

The utility model discloses a kind of adjustable variable arc devices, comprising: upper variable arc mechanism, upper variable arc mechanism includes upper constraint part and multiple first upper connecting piece;First upper connecting piece between detachably connected with upper constraint part forms upper fixed length area, and the first upper connecting piece between remaining not connected with upper constraint part forms upper variable arc area;Lower variable arc mechanism, lower variable arc mechanism includes lower constraint part and multiple first lower connecting piece;First lower connecting piece between detachably connected with lower constraint part forms lower fixed length area, and the first lower connecting piece between remaining not connected with lower constraint part forms lower variable arc area;Drive mechanism.The utility model further discloses a kind of curved glass forming equipment, including above-mentioned adjustable variable arc device.The adjustable variable arc device in the utility model can obtain the upper variable arc area and lower variable arc area of target length.The curved glass forming equipment in the utility model can produce the curved glass of target curvature radius.

This application relates to a glass forming apparatus. The glass forming apparatus includes multiple driving structures, including a first driving structure and a second driving structure arranged along a first direction. Each driving structure includes a driving member, a mounting base, and a sliding member. The sliding member includes a first sliding portion and a second sliding portion arranged and connected along a second direction. The first sliding portion is movably disposed through the mounting base along the second direction. The driving end of the driving member is connected to the first sliding portion and is used to drive the sliding member to reciprocate along the second direction. A pressing structure is disposed on the side of the second sliding portion away from the first sliding portion. An adjusting member is disposed on the side of the pressing structure facing the driving structure. The adjusting member includes a first adjusting portion and a second adjusting portion arranged and connected along the second direction. The first adjusting portion is detachably connected to the pressing structure. The second sliding portion has a groove, and the second adjusting portion is located in the groove and threadedly connected to the groove. Therefore, the glass forming apparatus provided in this application can be used to prepare glass of different thicknesses.

This utility model relates to a stainless steel and tantalum composite insulator, comprising a stainless steel shell as a conductive cathode, an mounting position for a tantalum tube anode inside the stainless steel shell, an axially mounted tantalum tube anode inside the mounting position, and a microcrystalline glass layer forming an insulating medium at the connection between the tantalum tube anode and the stainless steel shell; the tantalum content of the tantalum tube anode is 99% or more by mass, with the remainder being impurities; the conductive cathode is either 316L or 2205 duplex stainless steel. By using the tantalum tube anode and stainless steel as the conductive cathode, and the microcrystalline glass forming the insulating layer, a matching seal can be achieved with the stainless steel and tantalum tube, ensuring electrical isolation. The tantalum tube anode can withstand boiling concentrated sulfuric acid, hydrochloric acid, and other strong acids, with a lifespan far exceeding that of traditional electrodes; ensuring the corrosion resistance of the stainless steel and tantalum composite insulator. The stainless steel cathode undergoes surface modification to avoid brittle fracture caused by long-term hydrogen evolution, increasing its conductive stability.

The utility model relates to the technical field of glass forming discloses a regulating device and glass production equipment, regulating device is used for adjusting the position of photovoltaic calendering line neck water bag, including two along the first direction interval arrangement's adjusting assembly, and adjusting assembly includes base and two longitudinal adjusting spare. Base defines the installation cavity, each longitudinal adjusting spare includes the movable part and the abutment portion that are connected, movable part swing joint is in the base, and the abutment portion of two longitudinal adjusting spare is located in the installation cavity, and along the second direction interval arrangement, two movable parts can move relative to the base, make two abutment portion along the second direction opposite movement to hold the water bag, or along the second direction apart movement to release the water bag, and the first direction intersects with the second direction. The regulating device of the utility model can reduce the influence of operation space to water bag adjustment, improve the convenience of water bag adjustment. The glass production equipment with the above-mentioned regulating device also has the advantages described above.

The present application relates to the technical field of glass preparation, and discloses a glass forming method, glass and application thereof. The method comprises the following steps: introducing glass liquid into a tin bath containing tin liquid in the presence of protective gas, the tin bath is sequentially provided with a weeding area, a cooling A area and a cooling B area along the length direction, and the glass liquid solidifies after flowing through the weeding area, the cooling A area and the cooling B area on the surface of the tin liquid in sequence to obtain glass. The glass prepared by the method has surface compressive stress not less than 870 MPa, stress layer depth not less than 30 microns, and surface warping not higher than 0.13 mm, and can be applied to a flat display device as a cover plate glass, and the cover plate glass has good drop resistance.

This application provides an ultrasonic-assisted forming method for capillary glass tubes used in optical inspection, applied to a forming apparatus including an ultrasonic base and a metal core needle. After preheating the forming apparatus to a first temperature, molten glass is poured in, causing it to coat the core needle and tend to form a transiently solidified layer. An acoustic model is established by collecting the effective working length of the core needle and the material's acoustic parameters. Based on the acoustic model and considering the critical energy density required to destroy the transiently solidified layer and the effective glass forming time, the acoustic energy output parameters of the core needle are determined. According to these parameters, high-frequency ultrasound is continuously applied through the ultrasonic base during the cooling process of the glass from the molten state to a second temperature, causing the core needle to vibrate to destroy and suppress the transiently solidified layer. The ultrasound is then turned off. This method can reduce interfacial stress concentration, suppress the formation of microcracks on the inner wall, and improve the smoothness of the inner wall of the capillary glass tube as well as its optical and mechanical properties.

The utility model discloses a glass workpiece positioning device and glass forming equipment, glass workpiece positioning device includes roller bed subassembly and positioning subassembly, and roller bed subassembly includes a plurality of interval arrangement's conveying roller along a conveying direction, and a plurality of conveying rollers have conveying surface, positioning subassembly includes positioning air knife, positioning piece and locking piece, and positioning air knife sets up between two conveying rollers of adjacent, and positioning air knife is equipped with first connecting portion, positioning piece is equipped with second connecting portion and locking portion, and second connecting portion is detachably connected with first connecting portion, to make positioning piece protrude on conveying surface, locking piece is used to be connected with locking portion after second connecting portion and first connecting portion connect. The utility model discloses through the positioning piece of protruding from conveying surface can position glass workpiece on conveying surface, when glass appears the trend of running off in the transportation process, and positioning piece can contact with glass edge to physical constraint glass and move to side portion, avoid glass and shift.

The application relates to the field of glass forming, and discloses a high-precision glass forming equipment which comprises a main frame and a lower forming mechanism, the lower forming mechanism is arranged in the main frame; the lower forming mechanism comprises a lower end variable-arc mechanism, lower elastic members and a lower roller way mechanism; the bottoms of the two ends of the lower roller way mechanism are respectively provided with the lower elastic members, the bottoms of the lower elastic members are connected with the lower end variable-arc mechanism; at least one end of the lower end variable-arc mechanism is connected with a lower pulling assembly; the center distance of two adjacent conveying roller ways is smaller than the center distance of two adjacent lower pin shafts. The lower elastic members are arranged to correspond to the intermediate connecting pieces of the lower end variable-arc mechanism and the lower roller way mechanism, the installation of the lower roller way mechanism is not dependent on the corresponding variable-arc mechanism, the fine roller way, the small-interval roller way installation arrangement can be realized, the glass forming precision is improved by reducing the roller way interval, the straight edge of the glass is reduced, and the profile precision of the curved glass is improved.

The application provides an air flow regulating device for flexible glass forming, comprising an annealing furnace body; first regulating components and second regulating components are arranged on the front and back sides of the annealing furnace body respectively; the first regulating components and the second regulating components both comprise: a rotating shaft which is arranged in the annealing furnace body in a rotating mode, and the first end of the rotating shaft protrudes from the left side wall of the annealing furnace body, and the part of the rotating shaft in the annealing furnace body is provided with a downward extending baffle; the first end of the rotating shaft is fixedly provided with a left rotating handle, and the left side outer wall of the annealing furnace body is provided with a left positioning mechanism, and the left positioning mechanism can position the left rotating handle to a set angle. The air flow regulating device for flexible glass forming can greatly improve the production quality and product yield of flexible glass.

This utility model discloses a cooling device for microcrystalline glass forming, including a corner-folding housing. The surface of the corner-folding housing is provided with a first cooling air inlet protrusion, a second cooling air inlet protrusion, and a third cooling air inlet protrusion. Heat-absorbing bearing plates are fixedly connected to the inner surfaces of the first, second, and third cooling air inlet protrusions. The outer end surface of the corner-folding housing is provided with a flow guide port, and a turbine fan is fixedly connected to the outer surface of the flow guide port. The heat-absorbing bearing plates are evenly distributed and fixedly connected to the inner surfaces of the first, second, and third cooling air inlet protrusions. By using cooling air inlets on the surface of the corner-folding housing and heat-absorbing bearing plate assemblies inside the cooling air inlets, glass can be placed on the surface of the heat-absorbing bearing plates and cooled by drawing airflow, which can also remove the absorbed heat. This allows for rapid cooling of the glass, and the placement and removal of the glass are convenient. The cooling mechanism is simple and the cost is low.

This application relates to the technical field of glass forming, and in particular to a multi-layer insulating glass forming system, including a conveying device and cleaning, inspection, pressing, and sealing devices arranged sequentially along the conveying direction. The conveying device includes several rollers with gaps between them; the inspection device includes an inspection backplate with an inspection backlight on it, and a lifting roller located within the gap below it, the lifting roller being vertically slidably connected to the inspection backplate. The glass is conveyed to the inspection backplate for visual inspection. The lifting roller lifts the glass upwards to the operator's normal operating height, allowing for comprehensive inspection without bending over or squatting, and providing a wider viewing angle from a normal standing position, facilitating detailed defect inspection; simultaneously, the bottom of the glass is positioned in the middle of the inspection backplate, receiving ample illumination from the inspection backlight, further improving the convenience and accuracy of the inspection.

A light-transmitting module comprises a tempered glass plate located on an outer layer and an acrylic glass plate located on an inner layer and having the same shape as the tempered glass plate on the outer layer, annular spacer strips are close to the inner edges of the tempered glass plate and the acrylic glass plate and are sealed together with them by using a sealant, closed heat-insulating cavities are formed between the tempered glass plate and the acrylic glass plate, in a space defined by the spacer strips; the outer layer of the present invention uses a tempered glass plate for enhancing the wear resistance and permeability of the outer layer, and the inner layer uses an acrylic glass plate such that the process of glass molding is improved.

The present application relates to a kind of rolling type overturning curved glass forming equipment and production line, forming equipment includes main frame, main frame is equipped with two rolling guide mechanism, the length direction of rolling guide mechanism is parallel with glass conveying direction;Overturning forming mechanism, including lower forming mechanism, including two forming units and multiple lower roller way, two forming units are supported on two rolling guide mechanism respectively;Rolling frame is set on overturning forming mechanism, is connected with rolling drive mechanism;Forming unit below is equipped with first traction restraint and second traction restraint, the fixed end of first traction restraint is fixedly connected with the main frame or rolling guide mechanism of forming equipment import side, movable end is connected with the sheet end of forming unit;The fixed end of second traction restraint is fixed on the main frame or rolling guide mechanism of forming equipment export side, movable end is connected with the sheet end of forming unit.The present application can realize the hot glass sheet and curved glass sheet on the same horizontal plane.

The application discloses a method for harmless treatment of heavy waste slag of waste lithium batteries, comprising the following steps: (1) drying and crushing the heavy waste slag, calcium carbonate slag and magnesium calcium slag generated in the treatment of waste lithium batteries; (2) grinding silicon sand, solvent minerals and regenerated micro powder; (3) mixing the materials prepared in steps (1) and (2) to obtain glass liquid; (4) water quenching, crushing and drying the glass liquid prepared in step (3) to obtain water-quenched slag, or performing a glass forming process on the glass liquid to obtain a glass finished product. The method can solidify heavy metals in the heavy waste slag generated in the treatment of waste lithium batteries, realizes harmless and resourceful treatment of the heavy waste slag generated in the treatment of waste lithium batteries, and the treated product can be used for preparing microcrystalline glass and building materials without secondary pollution, and has good social, environmental and economic benefits.

This invention relates to a low-bubble-rate optical glass forming furnace, comprising a furnace body. The furnace body's inner cavity has a large-diameter conveying section and a small-diameter conveying section arranged from right to left. The left side of the large-diameter conveying section is connected to the right side of the small-diameter conveying section via a guide ramp. This invention relates to the field of glass forming furnace technology. This low-bubble-rate optical glass forming furnace employs a structure where the large-diameter and small-diameter conveying sections are combined with a guide ramp. This effectively blocks the downward movement of bubbles and promotes their upward aggregation. Combined with the dual effects of piezoelectric vibration and magnetic reciprocating stirring, deep bubbles in the molten glass are rapidly agitated to the exhaust area, significantly improving bubble removal efficiency. The exhaust mechanism uses a sealing block to timed open and close the exhaust channel, achieving intermittent and controllable exhaust, preventing continuous outflow of molten glass. Through the movement of the insert assembly and its cooperation with the discharge pipe, the molten glass entering the receiving cavity can be recycled and reused, reducing raw material waste.

The application belongs to the field of glass production and discloses a glass forming device and a glass plate forming method. The glass forming device comprises a shell structure, a molten inner container and a tensioning component. A shaped inner container is formed in the shell structure. The molten inner container is provided with a molten cavity with an open lower end, and the molten inner container is arranged in the shaped inner container. The tensioning component is arranged between the shaped inner container and the molten inner container, so that the molten inner container is tightly attached to the shaped inner container. In the glass forming device provided by the application, the position of the side wall of the molten inner container is adjusted by the tensioning component, so that the side wall of the molten inner container is tightly attached to the side wall of the shaped inner container. The shape of the shaped inner container is more stable, so that the shape of the slit generated on the molten inner container can be guaranteed when the molten inner container is attached to the inner side wall of the shaped inner container, the slit is prevented from deforming, and the width of the output glass liquid is uniform.

The utility model discloses a kind of tin bath outlet retaining wall and gate plate system for float glass tin bath, including outlet retaining wall and gate plate structure, the outlet retaining wall and gate plate include retaining wall block, heat-insulating lining, gate plate block, manual lifting device, pneumatic actuator, pulley mechanism.The tin bath outlet retaining wall and gate plate system can be formed high sealing structure by heat-resistant steel retaining wall block and bevel fitting type gate plate, cooperate manual / pneumatic dual-mode lifting mechanism, realize outlet opening degree accurate regulation and emergency quick response.The problem that traditional retaining wall is not flexible in operation is solved, and glass forming quality and production efficiency are significantly improved.

This utility model discloses a glass forming apparatus, comprising: a forming structure, including a first roller conveyor unit; a transition structure, including a second roller conveyor unit and a first cooling air grid; a tempering structure, including a third roller conveyor unit and a second cooling air grid; and a driving structure, including a first driving member and a second driving member, wherein the first driving member drives the first and second roller conveyor units to rotate at a first speed, and the second driving member drives the third roller conveyor unit to rotate at a second speed. In this utility model, the first and second speeds may be the same or different, applicable to different application scenarios. When this utility model is applied to a continuous production process, and the first and second speeds are different, it can improve the situation where the particle size is inconsistent between the front and rear ends of a glass piece. Furthermore, the glass can be surface hardened using the first cooling air grid, reducing surface scratches caused by speed differences when the glass enters the tempering structure.

The utility model discloses a glass forming mould easy to demould, which comprises two mould bodies, mould cavities are arranged on opposite sides of the two mould bodies, the inner tops of the mould cavities are arranged in an inclined mode, and material injection ports are arranged on the opposite sides of the two mould bodies and close to the tops. A sliding groove is formed in the position, close to the bottom, in the mold body, a sliding block is slidably connected to the inner side wall of the sliding groove, a vertically-arranged jacking column is fixedly connected to the upper end of the sliding block, a through opening communicated with the mold cavity is formed in the inner top of the sliding groove, and the upper end of the jacking column slidably extends into the through opening. Four guide rods distributed in a rectangular shape are slidably inserted into the upper end of the sliding block, and the upper ends of the guide rods are fixedly connected with the inner top of the sliding groove. Through the arrangement of the ejection column, the sliding block and other mechanisms, demolding operation can be automatically conducted on a product, the product can be prevented from being damaged, and convenience and safety are improved.

The utility model discloses a kind of air grid assembly adjusting device and glass forming equipment, air grid assembly adjusting device includes air grid assembly and variable arc component, air grid assembly includes wind box, and the both ends of wind box are equipped with first connecting part and second connecting part;Variable arc component includes first variable arc mechanism and second variable arc mechanism, first variable arc mechanism includes multiple first variable arc pieces of mutual hinging, and first variable arc piece is equipped with first connecting piece, first connecting piece is hinged with first connecting part, and first connecting piece is slidably connected with first connecting part;Second variable arc mechanism includes multiple second variable arc pieces of mutual hinging, and second variable arc piece is equipped with second connecting piece, second connecting piece is hinged with second connecting part;First connecting piece is used to be slidably matched with first connecting part when wind box is in inclined state.The utility model can adjust the included angle between cooling air blown by wind box and glass surface by adjusting the angle of air grid assembly, so as to realize glass surface wind power uniform distribution.

The utility model discloses a kind of variable curvature device and conical glass forming equipment, variable curvature device includes roller bed component and variable curvature component, roller bed component includes multiple roller pieces spaced apart along a conveying direction, and roller piece includes forming roller and telescopic roller, forming roller has first end and second end, first end and the end of telescopic roller are hinged;Variable curvature component includes first variable curvature piece and second variable curvature piece separately arranged at the two sides of multiple roller pieces, first variable curvature piece is rotatably connected with telescopic roller, and first variable curvature piece is slidably connected with telescopic roller;Second variable curvature piece is hinged with second end;First variable curvature piece and second variable curvature piece are used to drive multiple roller pieces in conveying direction when variable curvature;Telescopic roller is used to slide relative to first variable curvature piece when forming roller is in inclined state.The utility model of variable curvature device can compensate the length variation of roller piece between two variable curvature pieces caused by the inclination of forming roller through the telescopic movement of telescopic roller, ensure that forming roller can be accurately inclined.

Fuel cell alloy bipolar plates. The alloys may be used as a coating or bulk material. The alloys and metallic glasses may be particularly suitable for proton-exchange membrane fuel cells because of they may exhibit reduced weights and / or better corrosion resistance. The alloys may include any of the following AlxCuyTiz, AlxFeyNiz, AlxMnyNiz, AlxNiyTiz, CuxFeyTiz, CuxNiyTiz, AlxFeySiz, AlxMnySiz, AlxNiySiz, NixSiyTiz, and CxFeySiz. The alloys or metallic glass may be doped with various dopants to improve glass forming ability, mechanical strength, ductility, electrical or thermal conductivities, hydrophobicity, and / or corrosion resistance.

This utility model provides a baffle component for the overflow port of a kiln in a rolled glass forming process. It is set up with a composite brick structure consisting of a frame structure and a brick body. The two work together to form a heating space to accommodate the heating unit. The shape of the heating unit matches and conforms to the shape of the alloy working surface of the brick, thereby ensuring uniform heating and heat preservation. The brick body is designed to be longitudinally movable relative to the frame structure, which facilitates the quick removal of irregularly shaped heating units from the sharp-cornered heating space and enables rapid replacement. This solves the technical problems in the prior art, such as rapid heat dissipation from the working surface of the steel-edged brick, poor heating and heat preservation uniformity of conventional heating elements, and difficulty in replacement.