Aluminum silicon carbide carbon brick and its preparation device

Abstract

The present invention provides an aluminum silicon carbide carbon brick, comprising a brick unit, the brick unit comprising a silicon carbide aggregate layer and an aluminum-based composite bonding layer, the aluminum-based composite bonding layer being embedded in the silicon carbide aggregate layer; a tenon is provided at one end of the silicon carbide aggregate layer, the tenon being arc-shaped, a tenon groove is provided at the other end of the silicon carbide aggregate layer, an elastic steel sheet is provided on the tenon, and a limiting slot is provided in the corresponding elastic steel sheet in the tenon groove; the tenon at one end of the silicon carbide aggregate layer is clamped in the tenon groove at one end of another group of silicon carbide aggregate layers, and one end of the elastic steel sheet is clamped in the limiting slot. The aluminum-based composite bonding layer of the aluminum silicon carbide carbon brick is embedded in the silicon carbide aggregate layer, improving strength and stability; the arc-shaped tenon cooperates with the tenon groove to release thermal stress at high temperatures; the elastic steel sheet and the limiting slot enhance connection reliability, facilitate installation and disassembly, and is suitable for high-temperature industrial furnaces.

Description

Technical Field

[0001] The present invention belongs to the technical field of carbon bricks, and more specifically, relates to an aluminum silicon carbide carbon brick and a preparation device thereof. Background Art

[0002] With the development of the metallurgical industry, the requirements for refractory materials in the molten iron pretreatment process are becoming increasingly stringent. The linings of equipment such as torpedo-type mixing iron cars and molten iron tanks need to withstand high-temperature molten iron erosion above 1500℃, acidic and alkaline slag corrosion and frequent thermal shock stress. Carbon bricks are the core lining material; however, traditional carbon bricks are mostly connected by flat splicing or straight tenon connection. Under high temperature, the difference in thermal expansion coefficient is prone to stress concentration, leading to cracks in the brick joints, which can easily cause molten iron to penetrate into the brick joints and cause lining failure. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention provides an aluminum silicon carbide carbon brick and a preparation device thereof, so as to solve the technical problems in the prior art that traditional carbon bricks mostly adopt plane splicing or straight tenon connection, which are prone to cracking of brick joints due to high-temperature thermal expansion stress concentration and molten iron infiltration causing lining failure.

[0004] The purpose and effect of the aluminum silicon carbide carbon brick and the preparation device thereof of the present invention are achieved by the following specific technical means:

[0005] An aluminum silicon carbide carbon brick comprises a brick body unit, wherein the brick body unit comprises a silicon carbide aggregate layer and an aluminum-based composite bonding layer, wherein the aluminum-based composite bonding layer is embedded in the silicon carbide aggregate layer;

[0006] One end of the silicon carbide aggregate layer is provided with a tenon, the tenon is arranged in an arc shape, the other end of the silicon carbide aggregate layer is provided with a tenon groove, the tenon is provided with an elastic steel sheet, and a limiting slot is provided in the tenon groove corresponding to the elastic steel sheet;

[0007] The tenon at one end of the silicon carbide aggregate layer is clamped in the tenon groove at one end of another group of silicon carbide aggregate layers, and one end of the elastic steel sheet is clamped in the limiting clamping groove.

[0008] According to a preferred embodiment, the silicon carbide aggregate layer includes an upper layer and a lower layer, the upper layer and the lower layer are integrally arranged, and the aluminum-based composite bonding layer is embedded between the upper layer and the lower layer and is located in the center;

[0009] The tenon and the tenon groove are respectively located at both ends of the lower body, and a plurality of guide grooves are provided on the top of the upper body. The guide grooves are arranged in a dovetail shape, and a plurality of hemispherical protrusions are provided on the bottom surface of the guide groove along the length direction;

[0010] The top surface of the upper body and the bottom surface of the lower body are coated with a graphene heat conducting layer.

[0011] According to a preferred embodiment, multiple groups of first raised ribs and second raised ribs are provided on the top and bottom of the aluminum-based composite bonding layer, wherein the first raised ribs extend along the length direction, and the second raised ribs extend along the width direction, and the first raised ribs and the second raised ribs intersect with each other to form a grid structure.

[0012] According to a preferred embodiment, the first raised ribs are provided with a plurality of groups of anchors along the length direction, the anchors are arranged in a barb shape and are embedded in the silicon carbide aggregate layer at an angle of °.

[0013] A device for preparing the above-mentioned aluminum silicon carbide carbon bricks includes a base and a support platform, the support platform is located above the base, two groups of first support rods and two groups of second support rods are arranged between the two, one end of the first support rod is connected to the base, and the other end is rotatably connected to the support platform, guide rail assemblies are provided on both sides of the base, one end of the second support rod is connected to the guide rail assembly, and the other end is rotatably connected to the support platform;

[0014] A support plate is provided on the base, a lower template and an upper template are provided above the base, the lower template is mounted on the support platform, a hydraulic cylinder is provided on the support plate, the upper template is connected to the shaft end of the hydraulic cylinder, a feed hole is opened on the lower template, and the feed hole is connected to the external feeding system;

[0015] The bottom of the support plate is provided with an air outlet member, which is connected to an external air pump. A blanking plate is provided on the base, and both the air outlet member and the blanking plate are inclined.

[0016] The support platform is provided with a plurality of mounting slots, wherein electromagnetic vibrators are arranged in the mounting slots, and the electromagnetic vibrators are mounted on the bottom of the blanking plate.

[0017] According to a preferred embodiment, the lower template includes a first template, a second template and a third template. A limiting frame is provided at the top edge of the support platform. The first template is clamped in the limiting frame. The second template and the third template are respectively located at both ends of the first template.

[0018] The base is provided with a first mounting frame and a second mounting frame, both of which are provided with an electric cylinder, the second template and the third template are respectively mounted on the ends of the electric cylinder shafts, both ends of the first template are provided with through slots, the second template and the third template are respectively clamped in the through slots to form forming grooves, and the upper template is clamped in the forming grooves to form a forming cavity;

[0019] The electromagnetic vibrator is installed at the bottom of the first template.

[0020] According to a preferred embodiment, a forming block is provided on one side of the second template, a forming groove is provided on the third template, a placement groove is provided in the forming groove, and the placement groove is connected to the forming groove and the outside world;

[0021] A mounting plate is provided on one side of the third template, a steel sheet implanter is provided on the mounting plate, a feed box is provided on one side of the steel sheet implanter, elastic steel sheets are placed in the feed box, and the discharge port of the steel sheet implanter is aligned with the placement slot.

[0022] According to a preferred embodiment, the upper template includes a lifting frame, a fourth template and a fifth template. The lifting frame is connected to the shaft end of the hydraulic cylinder. An installation box is rotatably provided on the lifting frame. A motor is provided on one side of the lifting frame. The shaft end of the motor is connected to the installation box. The fourth template and the fifth template are respectively installed on both sides of the installation box.

[0023] According to a preferred embodiment, the thickness of the fourth template is greater than that of the fifth template, and the fifth template is provided with multiple groups of forming protrusions in the extension direction.

[0024] According to a preferred embodiment, a plurality of electric lifting rods are provided on the base, a rubber block is provided at one end of the electric lifting rod, and the rubber block is in contact with the bottom of the lower template.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. This invention fundamentally solves the thermal stress cracking problem caused by the rigid connection of traditional carbon bricks through the elastic connection structure of curved tenons and grooves, combined with the composite locking of elastic steel sheets and limit slots. The curved contact surface allows the bricks to undergo slight relative sliding or rotation at high temperatures, relieving thermal expansion stress. The bending deformation capacity of the elastic steel sheet buffers the impact load transmitted by equipment vibration, preventing stress concentration in the brick joints. For example, at temperatures of 1500°C, this structure can reduce the cracking rate of brick joints by over 70%, extending the life of the lining.

[0027] 2. The grid-like distribution of the aluminum-based composite bonding layer forms a three-dimensional reinforced skeleton through the first and second raised ribs, mechanically interlocking with the silicon carbide aggregate layer, further enhancing the overall deformation resistance. This allows the carbon brick to maintain a strength retention rate exceeding 90% after 50 thermal shock cycles (e.g., from room temperature to 1400°C). Furthermore, the combined design of the dovetail-shaped guide grooves and hemispherical protrusions achieves efficient fluid diversion and self-cleaning functions. The dovetail cross-section, with its wide top and narrow bottom structure, facilitates smoother fluid flow and reduces trapped eddies. Combined with the hemispherical protrusions that disrupt the boundary layer, this increases the melt flow rate by over 20%, reducing the risk of slag accumulation.

[0028] 3. The lower mold plate's first, second, and third mold plates are modularly assembled, driven by electric cylinders. Combined with the upper mold plate's rotatable dual mold plates (fourth and fifth mold plates), this creates a multi-station composite molding system. This structural innovation lies in the dual-platen switching mechanism: A motor-driven mounting box rotates, enabling rapid switching between the fourth and fifth mold plates. This allows for the pressing of varying product specifications without disassembly, enhancing production flexibility. The electromagnetic vibrator, through its mounting slots and the blanking plate, creates a gradient vibration conduction path, generating three-dimensional material flow within the molding cavity, ensuring uniform filling of the aluminum-silicon carbide composite material within the complex structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic structural diagram of an aluminum silicon carbide carbon brick after assembly according to the present invention;

[0030] Figure 2 This is a schematic diagram of the structure of an aluminum silicon carbide carbon brick after being disassembled according to the present invention;

[0031] Figure 3 It is a schematic diagram of the structure of the aluminum-based composite bonding layer;

[0032] Figure 4 This is a cross-sectional view of an aluminum silicon carbide carbon brick of the present invention;

[0033] Figure 5 This is a schematic diagram of the structure of a preparation device of the present invention after assembly;

[0034] Figure 6 This is a schematic diagram of the structure of a preparation device of the present invention after disassembly;

[0035] Figure 7 is a cross-sectional view of the third template;

[0036] Figure 8 It is a structural diagram after the upper template is split.

[0037] In the figure, the corresponding relationship between component names and reference numerals is as follows:

[0038] 11. Aluminum-based composite bonding layer; 12. First raised rib; 13. Second raised rib; 14. Anchor; 21. Tenon; 22. Tenon groove; 23. Elastic steel sheet; 24. Limiting slot; 25. Upper body; 26. Lower body; 27. Guide groove; 31. Base; 32. First support rod; 33. Second support rod; 34. Support plate; 35. First mounting bracket; 36. Second mounting bracket; 37. Electric cylinder; 38. Electric lifting rod; 39. Rubber block; 41. Support platform; 42. Hydraulic cylinder; 43. Air outlet; 44. Blanking plate; 45. Electromagnetic vibrator; 46. Limiting frame; 51. First template; 52. Second template; 53. Third template; 54. Forming block; 55. Forming groove; 56. Placement groove; 57. Mounting plate; 58. Steel sheet implanter; 61. Lifting frame; 62. Fourth template; 63. Fifth template; 64. Mounting box; 65. Forming protrusion. DETAILED DESCRIPTION

[0039] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solutions of the present invention, but are not intended to limit the scope of protection of the present invention.

[0040] Example: Figures 1 to 4 As shown, this embodiment provides an aluminum silicon carbide carbon brick, including a brick unit, which is composed of a silicon carbide aggregate layer and an aluminum-based composite bonding layer 11. The aluminum-based composite bonding layer 11 is embedded in the silicon carbide aggregate layer, and a plurality of groups of first raised ribs 12 extending along the length direction and second raised ribs 13 extending along the width direction are provided on the top and bottom thereof, which cross to form a grid-like skeleton structure. This skeleton forms an interlocking effect with the pores of the silicon carbide aggregate layer. When the carbon brick is subjected to an external load, the grid structure can disperse the stress to the entire brick unit to avoid local concentrated damage. For example, in a high-temperature thermal shock environment, the grid skeleton can absorb deformation energy through the ductility of the aluminum-based material, thereby improving the crack resistance of the brick body by more than 40%.

[0041] An arc-shaped tenon 21 is provided at one end of the silicon carbide aggregate layer, and an arc-shaped tenon groove 22 matching the tenon 21 is provided at the other end. The radius of the curved surface of the arc-shaped tenon 21 and the concave surface of the arc-shaped tenon groove 22 form a contact angle of 30° to 60°, which can form an elastic contact interface between the bricks after splicing. An elastic steel sheet 23 is embedded in the interior of the tenon 21. The steel sheet is made of 304 stainless steel and has a thickness of 0.8 to 1.2 mm. The end thereof extends to the limit slot 24 on the inner wall of the tenon groove 22. The bending modulus of the elastic steel sheet 23 matches the thermal expansion coefficient of the brick body. In a high temperature environment of 1500°C, it can absorb the shear force generated by the vibration of the equipment through its own deformation, reducing the dynamic stress fluctuation between the brick joints to 1 / 3 of that of the traditional straight tenon connection.

[0042] The tenon 21 and mortise 22 at the end of the silicon carbide aggregate layer adopt a hyperbolic biomimetic profile, with the outer curved surface of the tenon and the inner curved surface of the mortise forming a matching curvature. This curved geometry not only provides a natural guide for the masonry process, but also automatically slides along the curved surface during construction, significantly reducing the probability of manual alignment errors. It also creates a dynamic adaptive system at the mechanical level: when the carbon brick is subjected to external loads, the curved contact surface between the tenon and mortise undergoes progressive deformation due to compression, and the contact area gradually expands with increasing pressure, thereby simultaneously enhancing the reliability and load strength of the connection structure. The composite locking structure of the elastic steel sheet 23 and the limit slot 24 imparts both rigidity and flexibility to the brick connection. When the tenon is embedded in the mortise to a preset depth, the elastic steel sheet deflects slightly under pressure and then snaps into the limit slot, generating a crisp locking feedback. This mechanical engagement not only enables rapid positioning of the brick but also provides a more stable and continuous restraining force under complex working conditions such as vibration and thermal expansion and contraction. At the same time, the curved surface design of the elastic steel sheet enables it to buffer the impact load through its own deformation when subjected to shear force, avoiding the brittle fracture caused by sudden stress changes in traditional rigid connections, and providing a dynamic protection mechanism for masonry structures in high temperature environments.

[0043] The silicon carbide aggregate layer adopts a sandwich structure. The upper layer 25 and the lower layer 26 are bonded to the aluminum-based composite bonding layer 11 through a preparation device. When the brick is subjected to complex stress fields, the aluminum-based composite bonding layer acts as a mechanical buffer core, forming a stress relief channel through gradient modulus changes. The upper and lower layers utilize silicon carbide particles of different particle size gradations. The upper layer uses 5-10mm coarse aggregate to form the skeleton structure, while the lower layer uses 1-3mm fine aggregate to enhance density. The two layers are mechanically locked together through an interpenetrating network structure. The aluminum-based composite bonding layer 11 is embedded in the center plane of the upper and lower layers. When the brick undergoes flexural deformation, the aluminum-based alloy in the bonding layer absorbs strain energy through plastic flow, while the dispersed nano-titanium carbide particles within it act as dislocation pinning, preventing crack propagation. This synergistic effect, similar to prestressed structures in buildings, effectively protects the silicon carbide aggregate layer in the tensile stress zone. In high-temperature environments, this structure demonstrates its ability to regulate thermal stress: the thermal expansion of the upper layer 25, caused by direct contact with the high-temperature medium, is balanced by the relative contraction of the lower layer 26, while the aluminum-based composite bonding layer evens out the temperature gradient through the metal's thermal conductivity. This integrated thermal management mechanism of "constraint, buffering, and conduction" enhances thermal shock resistance.

[0044] The layout of the tenon 21 and the mortise 22 reflects a functional zoning design. They are symmetrically distributed at both ends of the lower body 26, avoiding the diversion function area of ​​the upper body 25. The lower body focuses on building the connection strength between bricks, while the upper body fully undertakes the task of fluid guidance, ensuring that the two systems of mechanical transmission and fluid management do not interfere with each other and operate in coordination. The axis of the tenon and mortise maintains a safe distance from the diversion area of ​​the upper body, which not only ensures the reliability of the connection during masonry, but also reserves a complete space for the smooth passage of high-temperature fluids. The diversion groove 27 at the top of the upper body 25 is designed with a dovetail profile. The cross-section of the diversion groove is an inverted trapezoidal structure that is wide at the top and narrow at the bottom. The two side groove walls extend at a specific angle, forming a guide channel that conforms to the principles of fluid mechanics. When high-temperature molten metal or slag flows through this area, the wide-at-top and narrow-at-bottom geometric shape produces an acceleration effect, guiding the fluid to naturally converge at the lower end under the action of gravity. It not only uses the fluid's own kinetic energy to reduce conveying resistance, but also expands the top opening area to accommodate fluid fluctuations, effectively reducing the risk of overflow, and maintaining flow stability even when the fluid flow rate suddenly increases. The hemispherical protrusions on the bottom of the guide trough 27 are distributed in an array. When the fluid flows through, local turbulence will form around the protrusions, effectively disrupting the laminar flow state of the boundary layer, preventing high-viscosity slag from depositing and solidifying at the bottom of the trough, and continuously activating the fluid movement in the stagnant area. In actual applications, this structure enables the guide trough to have both efficient diversion and self-cleaning functions. Even after long-term continuous operation, the trough can still maintain a smooth passage state, greatly reducing the frequency of manual slag cleaning and improving equipment operation efficiency.

[0045] The graphene thermal conductive layer covering the top surface of the upper body 25 and the bottom surface of the lower body 26 is prepared using a nano-scale layer stacking process to form a functional coating with both high thermal conductivity and corrosion resistance. When a high-temperature melt impacts the surface of the brick, the coating can quickly capture the heat generated by the local hot spot and evenly disperse it into the interior of the brick through the phonon conduction mechanism, significantly reducing the surface temperature gradient. In a high-temperature environment, the coating can quickly "absorb-conduct-diffuse" heat, just like installing invisible heat sink fins on the surface of the brick, converting concentrated thermal shock into a uniform temperature field distribution. In practical applications, this coating keeps the surface temperature difference of the brick within an extremely low range when it is subjected to severe temperature fluctuations, effectively suppressing the risk of cracking in the aggregate layer due to concentrated thermal stress.

[0046] The top and bottom of the aluminum-based composite bonding layer 11 are equipped with multiple sets of first raised ribs 12 and second raised ribs 13. The former extend along the length of the brick, while the latter extend along the width, intersecting to form a grid-like framework. This skeleton structure increases the contact area between the bonding layer and the silicon carbide aggregate layer. When the brick is subjected to shear forces, the intersection nodes of the grid form multiple stress transfer fulcrums, increasing the interfacial shear strength between the bonding layer and the aggregate layer by 45%. In high-temperature tests at 1200°C, this grid structure inhibits relative slip between the bonding layer and the aggregate layer, maintaining the structural integrity of the brick.

[0047] The multiple groups of anchors 14, arranged on the first raised ribs 12, are barbed and embedded in the silicon carbide aggregate layer at a 45° angle. The barbed structure of the anchors 14 creates a mechanical lock between the bond layer and the aggregate layer. Their angled design allows the anchors 14 to decompose a force component perpendicular to the interface when subjected to stress, enhancing the bond layer's pullout resistance. Measured data shows that bricks with barbed anchors 14 effectively address the problem of traditional flat bond layers easily peeling, making them particularly suitable for the lining of metallurgical equipment subject to frequent thermal shock.

[0048] like Figures 5 to 8 As shown, this embodiment provides a preparation device, including a base 31 and a support platform 41, which together form a main frame. Two sets of first support rods 32 and two sets of second support rods 33 are distributed at the four corners of the base 31, forming a stable quadrilateral support structure. One end of the first support rod 32 is fixed to the base 31 by bolts, and the other end is connected to the support platform 41 by a rotating shaft, allowing the support platform 41 to rotate in the vertical direction. The guide rail assemblies on both sides of the base 31 provide horizontal sliding tracks for the second support rods 33. When demolding, the second support rods 33 can move back and forth along the guide rails, and by changing their relative position with the first support rods 32, the support platform 41 forms an inclination angle. This inclination angle can be adjusted according to the size of the brick body, facilitating the smooth sliding of the finished brick from the lower mold cavity under the action of gravity. At the same time, it reduces the frictional resistance between the brick body and the inner wall of the mold cavity during the demolding process, and prevents complex structures such as the tenon 21 and the mortise 22 from being damaged by external forces. The support plate 34 on the base 31 is located on one side of the lower template. The hydraulic cylinder 42 installed on the top is connected to the upper template through a piston rod. The hydraulic cylinder 42 provides vertical pressure to drive the upper template to press the raw material downward, so that the brick unit is pressurized and formed in the mold cavity.

[0049] The lower mold plate is fixed to the center of the support platform 41. Its top surface features a mold cavity that matches the shape of the brick unit. A feed hole runs through the side of the lower mold plate and connects to an external feeding system, such as a screw feeder, to ensure the quantitative delivery of silicon carbide aggregate. Once the raw material is injected into the mold cavity through the feed hole, a hydraulic cylinder 42 drives the upper mold plate downward, applying pressure to the raw material and forming a layer of silicon carbide aggregate.

[0050] An air outlet 43 is located at the bottom of the support plate 34, and a blanking plate 44 is installed on the base 31. Air outlet 43, when connected to an external air pump, can eject compressed air. Both air outlet 43 and blanking plate 44 are tilted outward from the base 31. Once the brick is formed, compressed air is ejected from air outlet 43, pushing the finished brick from the mold onto blanking plate 44. The brick then passes through blanking plate 44 and onto the conveyor belt for automatic demolding. This design avoids damage to the bricks that could be caused by manual removal, and the tilted blanking plate 44 leverages gravity to accelerate the delivery of finished bricks.

[0051] Multiple groups of mounting slots on the support platform 41 are arranged along the length direction of the lower template. An electromagnetic vibrator 45 is installed in each slot. When the raw material is injected into the mold cavity, the electromagnetic vibrator 45 is started and transmits vibration energy through the lower template to make the air bubbles in the raw material escape, while promoting close contact between the silicon carbide aggregate and the aluminum-based composite binder.

[0052] The lower mold plate consists of a first mold plate 51, a second mold plate 52, and a third mold plate 53. A limit frame 46 is provided at the top edge of the support platform 41. The first mold plate 51 is mounted within the limit frame 46 and serves as the central fixing module of the lower mold plate. Its top surface defines a mold cavity corresponding to the central structure of the brick body. The second mold plate 52 and the third mold plate 53 are located at either end of the first mold plate 51, and the three mold plates together form the complete lower mold plate working surface. This split structure facilitates disassembly and replacement. When producing tenons 21 and mortises 22 of different specifications, only the second mold plate 52 or the third mold plate 53 needs to be replaced, shortening mold adjustment time.

[0053] The first mounting bracket 35 and the second mounting bracket 36 on the base 31 are symmetrically distributed, and an electric cylinder 37 is installed thereon, which can drive the second template 52 and the third template 53 to move in the horizontal direction. The width of the through grooves at both ends of the first template 51 is 0.5-1mm larger than the thickness of the second template 52 and the third template 53, allowing slight relative sliding between the templates. When the electric cylinder 37 pushes the second template 52 and the third template 53 into the through grooves, the mold cavities of the three are spliced ​​to form a molding groove, the internal contour of which is completely consistent with the tenon 21 and the mortise and tenon 22 structure of the brick unit; when the die pressing is completed, the second template 52 and the third template 53 are separated from the first template 51, and by tilting the support platform 41, the finished bricks can be discharged from one of the through grooves, realizing the unloading operation.

[0054] The electromagnetic vibrator 45 is installed at the bottom of the first mold plate 51, and its vibration energy is transmitted to the entire lower mold plate through the first mold plate 51. During the raw material filling process, the electromagnetic vibrator 45 vibrates at a frequency of 100 Hz to evenly distribute the silicon carbide aggregate in the molding cavity.

[0055] A shaping block 54 protruding from one side of the second template 52 aligns with the contour of the curved tenon 21 of the brick unit, allowing the curved surface structure of the tenon 21 to be directly pressed during the brick forming process. When the second template 52 is joined with the first and third templates 51 and 53 to form the forming groove, the shaping block 54 engages the corresponding position, allowing the raw material to be shaped around its surface under high pressure, forming the tenon 21 with a curved slope in one step, reducing subsequent processing steps.

[0056] like Figure 6 、 Figure 7As shown, the forming groove 55 defined in the third template 53 is shaped to match the tenon groove 22 of the brick unit and is used to compress the concave structure of the tenon groove 22. A placement slot 56 extending through the forming groove 55 is slightly wider than the thickness of the elastic steel sheet 23 and its length matches the dimensions of the elastic steel sheet 23. The placement slot 56 connects the forming groove 55 with the outside world, providing a path for the elastic steel sheet 23 to be inserted while ensuring that the raw material does not completely block the slot during filling, thus ensuring the feasibility of steel sheet insertion.

[0057] The mounting plate 57 on one side of the third template 53 is fixed vertically, and the steel sheet inserter 58 installed thereon adopts a pneumatic pushing structure, which can push out the elastic steel sheets 23 in the feed box one by one. The discharge port of the steel sheet inserter 58 is aligned with the placement slot 56. When the raw material initially fills the forming slot 55, the steel sheet inserter 58 is started and the elastic steel sheet 23 is pushed into the predetermined position in the forming slot 55 along the placement slot 56. In the subsequent process of pressing down the upper template, the elastic steel sheet 23 is wrapped and fixed by the raw material, and at the same time, its end extends to the position of the limit slot 24 corresponding to the mortise and tenon 22, and finally a brick unit with an elastic connection structure is formed, realizing the automated implantation of the elastic steel sheet 23, improving production efficiency and component installation consistency.

[0058] like Figure 6 、 Figure 8 As shown, the upper mold plate consists of a lifting frame 61, a fourth mold plate 62, and a fifth mold plate 63. The lifting frame 61 is connected to the shaft end of the hydraulic cylinder 42, which provides downward pressure for the upper mold plate. A mounting box 64 is mounted on top of the lifting frame 61 via a rotating shaft, allowing for 180° horizontal rotation. This allows the mounting box 64 to flexibly switch between the fourth mold plate 62 and the fifth mold plate 63, meeting the production requirements of bricks of varying sizes.

[0059] The motor shaft end, mounted on one side of the lifting frame 61, is connected to the mounting box 64 via a coupling. Once the motor is started, it drives the mounting box 64 to rotate smoothly, switching the positions of the fourth and fifth templates 62 and 63 within 10 seconds. The motor utilizes variable-frequency speed regulation technology, allowing it to adjust its speed based on actual production needs, ensuring that the template switching process is smooth and vibration-free, thereby preventing any impact on brick forming quality.

[0060] The fourth and fifth templates 62 and 63 are fixed to the sides of the installation box 64, respectively. They have different thicknesses and different working surface shapes. The fourth template 62 is thicker. When pressing the brick body, the fourth template 62 is used to press first, forming the lower layer 26. After the lower layer 26 is formed, the fourth template 62 rises, and then other equipment such as mechanical claws are used to place the aluminum-based composite bonding layer 11 on top of the lower layer 26. At this time, the fifth template 63 is switched to form the upper layer 25 through the fifth template 63, thus completing the production of the entire carbon brick. The fifth template 63 is provided with multiple groups of forming protrusions 65 along the length direction, corresponding to complex structures such as the brick body guide groove 27.

[0061] A plurality of electric lifting rods 38 are provided on the base 31. A rubber block 39 is provided at one end of the electric lifting rod 38. The rubber block 39 is in contact with the bottom of the lower template. The electric lifting rod 38 can provide additional supporting force for the support platform 41 during the downward pressing process. When the hydraulic cylinder 42 drives the upper template to press the raw material downward, the electric lifting rod 38 rises to the set height synchronously, so that the rubber block 39 is in contact with the bottom of the lower template, forming a four-point support structure, which can share part of the pressure borne by the lower template and ensure the stability of the entire device.

[0062] The basic principles, main features and advantages of the present invention are shown and described above. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments.

Claims

1. An aluminum silicon carbide carbon brick, comprising a brick unit, characterized in that: The brick unit comprises a silicon carbide aggregate layer and an aluminum-based composite bonding layer (11), wherein the aluminum-based composite bonding layer (11) is embedded in the silicon carbide aggregate layer; A tenon (21) is provided at one end of the silicon carbide aggregate layer, and the tenon (21) is arranged in an arc shape. A tenon groove (22) is provided at the other end of the silicon carbide aggregate layer. An elastic steel sheet (23) is provided on the tenon (21), and a limiting slot (24) is provided in the tenon groove (22) corresponding to the elastic steel sheet (23); The tenon (21) at one end of the silicon carbide aggregate layer is clamped in the tenon groove (22) at one end of another group of silicon carbide aggregate layers, and one end of the elastic steel sheet (23) is clamped in the limiting clamping groove (24); The silicon carbide aggregate layer comprises an upper body (25) and a lower body (26), wherein the upper body (25) and the lower body (26) are integrally arranged, and the aluminum-based composite bonding layer (11) is embedded between the upper body (25) and the lower body (26) and is located at the center; The tenon (21) and the tenon groove (22) are respectively located at two ends of the lower body (26). The top of the upper body (25) is provided with a plurality of guide grooves (27). The guide grooves (27) are arranged in a dovetail shape. The bottom surface of the guide groove (27) is provided with a plurality of hemispherical protrusions along the length direction.

2. The aluminum silicon carbide carbon brick according to claim 1, characterized in that: The top surface of the upper body (25) and the bottom surface of the lower body (26) are coated with a graphene heat-conducting layer.

3. The aluminum silicon carbide carbon brick according to claim 1, characterized in that: A plurality of groups of first raised ribs (12) and second raised ribs (13) are provided on the top and bottom of the aluminum-based composite bonding layer (11), wherein the first raised ribs (12) extend in the length direction, and the second raised ribs (13) extend in the width direction, and the first raised ribs (12) and the second raised ribs (13) intersect with each other to form a grid structure.

4. The aluminum silicon carbide carbon brick according to claim 3, characterized in that: The first raised rib (12) is provided with a plurality of groups of anchoring pieces (14) along the length direction, and the anchoring pieces (14) are arranged in a barb shape and are embedded in the silicon carbide aggregate layer at a 45° inclination.

5. A device for preparing aluminum silicon carbide carbon bricks, comprising a base (31) and a support platform (41), characterized in that: The support platform (41) is located above the base (31), and two groups of first support rods (32) and two groups of second support rods (33) are arranged between the two. One end of the first support rod (32) is connected to the base (31), and the other end is rotatably connected to the support platform (41). Guide rail assemblies are arranged on both sides of the base (31). One end of the second support rod (33) is connected to the guide rail assembly, and the other end is rotatably connected to the support platform (41). A support plate (34) is provided on the base (31), a lower template and an upper template are provided above the base (31), an aluminum silicon carbide carbon brick according to any one of claims 1 to 4 is formed between the lower template and the upper template, the lower template is installed on the support platform (41), a hydraulic cylinder (42) is provided on the support plate (34), the upper template is connected to the shaft end of the hydraulic cylinder (42), a feed hole is opened on the lower template, and the feed hole is connected to an external feeding system; An air outlet member (43) is provided at the bottom of the support plate (34), and the air outlet member (43) is connected to an external air pump. A blanking plate (44) is provided on the base (31), and both the air outlet member (43) and the blanking plate (44) are arranged in an inclined manner. The support platform (41) is provided with a plurality of installation slots, wherein electromagnetic vibrators (45) are arranged in the installation slots, and the electromagnetic vibrators (45) are installed at the bottom of the lower template.

6. A preparation device according to claim 5, characterized in that: The lower template includes a first template (51), a second template (52) and a third template (53); a limit frame (46) is provided at the top edge of the support platform (41); the first template (51) is clamped in the limit frame (46); the second template (52) and the third template (53) are respectively located at two ends of the first template (51); The base (31) is provided with a first mounting frame (35) and a second mounting frame (36), both of which are provided with an electric cylinder (37), the second template (52) and the third template (53) are respectively mounted on the shaft ends of the electric cylinder (37), both ends of the first template (51) are provided with through grooves, the second template (52) and the third template (53) are respectively clamped in the through grooves to form molding grooves, and the upper template is clamped in the molding grooves to form a molding cavity; The electromagnetic vibrator (45) is installed at the bottom of the first template (51).

7. A preparation device according to claim 6, characterized in that: A forming block (54) is provided on one side of the second template (52), a forming groove (55) is provided on the third template (53), a placement groove (56) is provided in the forming groove (55), and the placement groove (56) is connected to the forming groove (55) and the outside world; A mounting plate (57) is provided on one side of the third template (53), a steel sheet implanter (58) is provided on the mounting plate (57), a feed box is provided on one side of the steel sheet implanter (58), the elastic steel sheet (23) is placed in the feed box, and the discharge port of the steel sheet implanter (58) is aligned with the placement slot (56).

8. A preparation device according to claim 5, characterized in that: The upper template includes a lifting frame (61), a fourth template (62), and a fifth template (63). The lifting frame (61) is connected to the shaft end of the hydraulic cylinder (42). A mounting box (64) is rotatably provided on the lifting frame (61). A motor is provided on one side of the lifting frame (61). The shaft end of the motor is connected to the mounting box (64). The fourth template (62) and the fifth template (63) are respectively installed on both sides of the mounting box (64).

9. A preparation device according to claim 8, characterized in that: The thickness of the fourth template (62) is greater than that of the fifth template (63), and the fifth template (63) is provided with a plurality of forming protrusions (65) along the length direction.

10. A preparation device according to claim 5, characterized in that: A plurality of electric lifting rods (38) are provided on the base (31), and a rubber block (39) is provided at one end of the electric lifting rod (38), and the rubber block (39) is in contact with the bottom of the lower template.

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