Aluminum silicon carbide carbon brick and preparation device thereof

Abstract

The invention provides an aluminum silicon carbide carbon brick which comprises a brick body unit, the brick body unit comprises a silicon carbide aggregate layer and an aluminum-based composite binding layer, and the aluminum-based composite binding layer is embedded in the silicon carbide aggregate layer; an arc-shaped tenon is arranged at one end of the silicon carbide aggregate layer, a mortise is formed in the other end of the silicon carbide aggregate layer, an elastic steel sheet is arranged on the tenon, and a limiting clamping groove is formed in the position, corresponding to the interior of the elastic steel sheet, in the mortise; the tenon at one end of one silicon carbide aggregate layer is clamped in the mortise at one end of the other silicon carbide aggregate layer, and one end of the elastic steel sheet is clamped in the limiting clamping groove. The aluminum-based composite bonding layer of the aluminum-silicon carbide carbon brick is embedded in the silicon carbide aggregate layer, so that the strength and the stability are improved; the arc-shaped tenon is matched with the mortise, so that thermal stress can be released at high temperature; and the elastic steel sheets and the limiting clamping grooves enhance the connection reliability, installation and disassembly are convenient, and the device is suitable for high-temperature industrial kilns.

Description

Technical Field

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

[0002] With the development of the metallurgical industry, the requirements for refractory materials in the hot metal pretreatment process are becoming increasingly stringent. The inner linings of equipment such as torpedo-type hot metal mixers and hot metal ladles need to withstand the erosion of hot metal above 1500°C, acidic and alkaline slag, and frequent thermal shock stress, and carbon bricks are the core inner lining materials; however, traditional carbon bricks mostly use flat splicing or straight tenon connections, and stress concentration is likely to occur due to differences in thermal expansion coefficients at high temperatures, resulting in cracking of the brick joints, and it is easy for hot metal to penetrate into the brick joints, causing the failure of the inner lining. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention provides an aluminum silicon carbide carbon brick and its preparation device to solve the technical problems in the prior art that traditional carbon bricks mostly use flat splicing or straight tenon connections, and are prone to cracking of brick joints and penetration of hot metal due to stress concentration caused by high-temperature thermal expansion, resulting in the failure of the inner lining.

[0004] The purpose and efficacy of an aluminum silicon carbide carbon brick and its preparation device of the present invention are achieved by the following specific technical means: An aluminum silicon carbide carbon brick includes a brick body unit, and the brick body unit includes a silicon carbide aggregate layer and an aluminum-based composite bonding layer, and the aluminum-based composite bonding layer is embedded in the silicon carbide aggregate layer; One end of the silicon carbide aggregate layer is provided with a tenon, the tenon is arc-shaped, a mortise is opened at the other end of the silicon carbide aggregate layer, an elastic steel sheet is arranged on the tenon, and a limit card slot is correspondingly opened in the mortise for the elastic steel sheet; The tenon at one end of the silicon carbide aggregate layer is clamped in the mortise at one end of another group of silicon carbide aggregate layers, and one end of the elastic steel sheet is clamped in the limit card slot.

[0005] According to a preferred embodiment, the silicon carbide aggregate layer includes an upper body and a lower body, the upper body and the lower body are integrally arranged, and the aluminum-based composite bonding layer is embedded between the upper body and the lower body and is located at the central part; The tenon and the mortise are respectively located at both ends of the lower body, multiple groups of diversion grooves are opened on the top of the upper body, the diversion grooves are in the shape of a dovetail, and multiple groups of hemispherical protrusions are arranged along the length direction of the bottom surface of the diversion grooves; The top surface of the upper body and the bottom surface of the lower body are coated with a graphene heat conduction layer.

[0006] According to a preferred embodiment, multiple groups of first raised ribs and second raised ribs are provided at both the top and the bottom of the aluminum-based composite bonding layer. The first raised ribs extend along the length direction, the second raised ribs extend along the width direction, and a grid structure is formed by the intersection of the first raised ribs and the second raised ribs with each other.

[0007] According to a preferred embodiment, multiple groups of anchor members are provided along the length direction of the first raised ribs. The anchor members are provided in a barbed shape and are obliquely embedded into the silicon carbide aggregate layer at an angle of °.

[0008] A device for preparing the above-mentioned aluminum silicon carbide carbon brick includes a base and a support table. The support table is located above the base, and two groups of first support rods and two groups of second support rods are provided between them. One end of the first support rod is connected to the base, and the other end is rotatably connected to the support table. 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 table; A support plate is provided on the base, a lower template and an upper template are provided above the base. The lower template is installed on the support table. 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 an external feeding system; An air outlet member is provided at the bottom of the support plate. The air outlet member is connected to an external air pump. A blanking plate is provided on the base. Both the air outlet member and the blanking plate are obliquely arranged; Multiple groups of installation through grooves are opened on the support table, and electromagnetic vibrators are provided in the installation through grooves. The electromagnetic vibrators are installed at the bottom of the blanking plate.

[0009] According to a preferred embodiment, the lower template includes a first template, a second template and a third template. A limiting border is provided at the top edge of the support table. The first template is clamped within the limiting border, and the second template and the third template are respectively located at both ends of the first template; A first mounting frame and a second mounting frame are provided on the base, and electric cylinders are provided on both of them. The second template and the third template are respectively installed on the shaft ends of the electric cylinders. Through grooves are opened at both ends of the first template. The second template and the third template are respectively clamped within the through grooves to form a forming groove, and the upper template is clamped within the forming groove to form a forming cavity; The electromagnetic vibrator is installed at the bottom of the first template.

[0010] According to a preferred embodiment, a forming block is provided on one side of the second template, a forming groove is formed on the third template, a placement through groove is formed in the forming groove, and the placement through groove communicates with the forming groove and the outside; An installation plate is provided on one side of the third template, a steel sheet implantor is provided on the installation plate, a feed box is provided on one side of the steel sheet implantor, elastic steel sheets are placed in the feed box, and the discharge port of the steel sheet implantor is aligned with the placement through groove.

[0011] 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, and 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.

[0012] According to a preferred embodiment, the thickness of the fourth template is greater than the thickness of the fifth template, and multiple groups of forming protrusions are arranged along the length direction of the fifth template.

[0013] According to a preferred embodiment, multiple groups of electric lifting rods are provided on the base, and a rubber block is provided at one end of the electric lifting rod, and the rubber block contacts the bottom of the lower template.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the elastic connection structure of the arc-shaped tenon and the arc-shaped mortise, combined with the composite locking of the elastic steel sheet and the limit card slot, the present invention fundamentally solves the problem of thermal stress cracking of traditional carbon bricks caused by rigid connection. The arc-shaped contact surface allows the brick body to have a small relative sliding or rotation at high temperatures, releasing the thermal expansion stress, and the bending deformation ability of the elastic steel sheet can buffer the impact load transmitted by the equipment vibration, avoiding stress concentration at the brick joints. For example, in a high-temperature environment of 1500 °C, this structure can reduce the cracking rate of the brick joints by more than 70% and extend the lining life.

[0015] 2. The grid-like distributed aluminum-based composite bonding layer forms a three-dimensional reinforcement framework through the first raised rib and the second raised rib, achieving mechanical interlocking with the silicon carbide aggregate layer, further enhancing the overall anti-deformation ability, so that after 50 thermal shock cycles (such as from room temperature to 1400 °C), the strength retention rate of the carbon brick still exceeds 90%. At the same time, the combined design of the dovetail-shaped diversion groove and the hemispherical protrusion realizes the functions of efficient fluid diversion and self-cleaning. The upper-wide and lower-narrow structure of the dovetail-shaped cross-section makes the fluid flow more smoothly, reducing the retention eddy current. Combined with the hemispherical protrusion disturbing the boundary layer, the flow rate of the molten material can be increased by more than 20%, reducing the risk of slag accumulation.

[0016] 3. The first template, the second template, and the third template of the lower template are modularly combined by an electric cylinder drive. Combining with the rotatable double-template structure (the fourth template and the fifth template) of the upper template, a multi-station composite forming system is formed. The innovation points of this structure are as follows: Double-template switching mechanism: The installation box is rotated by a motor drive to quickly switch the fourth template and the fifth template, which can adapt to the pressing requirements of different specifications of products without disassembly, improving production flexibility; The electromagnetic vibrator forms a gradient vibration conduction path with the blanking plate through the installation through groove, causing the material to generate three-dimensional flow in the forming cavity, ensuring uniform filling of the aluminum silicon carbide composite material in complex structures. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of an aluminum silicon carbide carbon brick assembled according to the present invention; Figure 2 is a schematic structural diagram of an aluminum silicon carbide carbon brick disassembled according to the present invention; Figure 3 is a schematic structural diagram of an aluminum-based composite bonding layer; Figure 4 is a sectional view of an aluminum silicon carbide carbon brick according to the present invention; Figure 5 is a schematic structural diagram of a preparation device assembled according to the present invention; Figure 6 is a schematic structural diagram of a preparation device disassembled according to the present invention; Figure 7 is a sectional view of the third template; Figure 8 is a schematic structural diagram of the upper template disassembled.

[0018] In the figure, the corresponding relationship between the component names and the reference numerals in the drawings is as follows: 11, aluminum-based composite bonding layer; 12, first raised rib; 13, second raised rib; 14, anchor; 21, tenon; 22, mortise; 23, elastic steel sheet; 24, limit card slot; 25, upper body; 26, lower body; 27, diversion 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 table; 42, hydraulic cylinder; 43, air outlet part; 44, blanking plate; 45, electromagnetic vibrator; 46, limit frame; 51, first template; 52, second template; 53, third template; 54, forming block; 55, forming groove; 56, placement through groove; 57, mounting plate; 58, steel sheet implantator; 61, lifting frame; 62, fourth template; 63, fifth template; 64, mounting box; 65, forming protrusion. Detailed Embodiments

[0019] The following further describes in detail the embodiments of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the technical solutions of the present invention, but cannot be used to limit the protection scope of the present invention.

[0020] Embodiment: As Figures 1 to 4 shown, this embodiment provides a silicon carbide-carbon brick with aluminum, including a brick body 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 inside the silicon carbide aggregate layer, and multiple groups of first raised rib strips 12 extending along the length direction and second raised rib strips 13 extending along the width direction are provided at its top and bottom. The two cross to form a grid-like skeleton structure. This skeleton and the pores of the silicon carbide aggregate layer form an interlocking effect. When the carbon brick bears an external load, the grid structure can disperse the stress to the entire brick body unit, avoiding 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, increasing the crack resistance of the brick body by more than 40%.

[0021] One end of the silicon carbide aggregate layer is provided with an arc-shaped tenon 21, and the other end is provided with an arc-shaped mortise 22 matching the tenon 21. The curved surface radius of the arc-shaped tenon 21 and the concave surface of the arc-shaped mortise 22 form a contact angle of 30° to 60°, which can form an elastic contact interface after the bricks are spliced. An elastic steel sheet 23 is embedded inside the tenon 21. The steel sheet is made of 304 stainless steel with a thickness of 0.8 to 1.2 mm, and its end extends to the limit card slot 24 on the inner wall of the mortise 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.

[0022] The tenon 21 and the tenon groove 22 at the end of the silicon carbide aggregate layer adopt a hyperbolic bionic profile, and the outer arc surface of the tenon and the inner arc surface of the tenon groove form a curvature match. This arc-shaped geometric configuration not only provides a natural guiding function for the masonry process. During masonry, the brick body automatically slides and centers along the arc surface, greatly reducing the error probability of manual alignment, and also constructs a dynamic adaptive system at the mechanical level: when the carbon brick is subjected to an external load, the arc-shaped contact surface of the tenon and the tenon groove will produce a progressive deformation due to extrusion, and the contact area will gradually expand as the pressure increases, so that the reliability of the connection structure and the load strength are simultaneously enhanced. The composite locking structure of the elastic steel sheet 23 and the limit card slot 24 gives the brick body connection a rigid and flexible characteristic. When the tenon is embedded in the tenon groove to a preset depth, the elastic steel sheet is slightly deflected under pressure, and then snaps into the limit card slot to form a crisp locking feedback. This mechanical bite not only realizes the rapid positioning of the brick body, but also can provide a continuous and stable constraint force under complex working conditions such as vibration, 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 of traditional rigid connections caused by sudden stress changes, and providing a dynamic protection mechanism for masonry structures in high temperature environments.

[0023] The structure of the silicon carbide aggregate layer adopts a sandwich configuration. The upper body 25 and the lower body 26 are combined with the aluminum-based composite bonding layer 11 through a preparation device. When the brick body is subjected to a complex stress field, the aluminum-based composite bonding layer acts as a mechanical buffer core area and forms a stress relief channel through a gradient modulus change. The upper body and the lower body use silicon carbide particles with different particle size gradations. The upper body uses 5-10mm coarse aggregate to form a skeleton structure, and the lower body uses 1-3mm fine aggregate to enhance density. The two layers are mechanically locked through an interpenetrating network structure. The aluminum-based composite bonding layer 11 is embedded in the center plane of the upper and lower bodies. When the brick body is flexurally deformed, the aluminum-based alloy in the bonding layer absorbs strain energy through plastic flow, and the nano-titanium carbide particles dispersed inside it play a dislocation pinning role to prevent crack propagation. This synergistic effect is like a prestressed structure in a building, which effectively protects the silicon carbide aggregate layer in the tensile stress zone. In a high-temperature environment, the structure exhibits thermal stress regulation capabilities: the thermal expansion of the upper body 25 due to direct contact with the high-temperature medium is balanced by the relative contraction of the lower body 26, while the aluminum-based composite bonding layer equalizes the temperature gradient through the thermal conductivity of the metal. This "constraint-buffer-conduction" trinity thermal management mechanism improves thermal shock resistance.

[0024] The layout of the tenon 21 and mortise 22 reflects the functional zoning design. They are symmetrically distributed at both ends of the lower body 26, avoiding the fluid guiding functional area of the upper body 25. The lower body focuses on building the connection strength between bricks, while the upper body fully undertakes the fluid guiding task, ensuring that the two systems of mechanical conduction and fluid management do not interfere with each other and operate in coordination. The axes of the tenon and mortise maintain a safe distance from the fluid guiding area of the upper body, which not only ensures the connection reliability during masonry but also reserves a complete space for the smooth passage of high-temperature fluid. The diversion groove 27 at the top of the upper body 25 is set with a dovetail-shaped contour. The cross-section of the diversion groove is an inverted trapezoidal structure with a wider top and a narrower bottom. The two side groove walls extend obliquely at a specific angle to form a guiding channel that conforms to the principles of fluid mechanics. When high-temperature molten metal or slag flows through here, the geometric shape with a wider top and a narrower bottom can produce an acceleration effect, guiding the fluid to naturally converge towards the lower end under the action of gravity. It not only reduces the conveying resistance by using the kinetic energy of the fluid itself but also effectively reduces the overflow risk by expanding the top opening area to accommodate fluid fluctuations. Even when the fluid flow rate suddenly increases, the stability of the flow can be maintained. The hemispherical protrusions on the bottom surface of the diversion groove 27 are arranged in an array. When the fluid flows through, local turbulence will be formed around the protrusions, effectively disturbing the laminar flow state of the boundary layer, preventing high-viscosity slag from depositing and solidifying at the bottom of the groove, and continuously activating the fluid movement in the stagnant area. In practical applications, this structure enables the diversion groove to have both high-efficiency diversion and self-cleaning functions. Even after long-term continuous operation, the inside of the groove can still maintain a smooth passage state, greatly reducing the frequency of manual slag cleaning and improving the operation efficiency of the equipment.

[0025] 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 by a nano-scale sheet stacking process to form a functional coating with both high thermal conductivity and corrosion resistance. When high-temperature melt impacts the surface of the brick, the coating can quickly capture the heat generated by local hot spots and evenly disperse it into the brick through the phonon conduction mechanism, significantly reducing the surface temperature gradient. In a high-temperature environment, this coating can quickly "absorb - conduct - diffuse" heat, just like installing invisible heat dissipation fins on the surface of the brick, converting the concentrated thermal shock into a uniform temperature field distribution. In practical applications, this coating enables the surface temperature difference of the brick to be controlled within a very low range when it withstands severe temperature fluctuations, effectively suppressing the risk of cracking in the aggregate layer caused by thermal stress concentration.

[0026] Multiple groups of first raised ribs 12 and second raised ribs 13 are provided at the top and bottom of the aluminum-based composite bonding layer 11. The former extends along the length direction of the brick, and the latter extends along the width direction, intersecting to form a grid-like skeleton. This skeleton structure increases the contact area between the bonding layer and the silicon carbide aggregate layer. When the brick is subjected to shear force, the intersection nodes of the grid can form multiple stress transfer fulcrums, increasing the interfacial shear strength between the bonding layer and the aggregate layer by 45%. In the high-temperature test at 1200 °C, this grid structure can inhibit the relative slip between the bonding layer and the aggregate layer and maintain the integrity of the brick structure.

[0027] Multiple groups of anchor fasteners 14 provided on the first raised rib 12 are barbed and are embedded in the silicon carbide aggregate layer at an angle of 45°. The barbed structure of the anchor fasteners 14 forms a mechanical lock between the bonding layer and the aggregate layer, and the designed inclination angle enables the anchor fasteners 14 to decompose a component force perpendicular to the interface when stressed, enhancing the anti-pulling ability of the bonding layer. The measured data shows that the brick body with barbed anchor fasteners 14 effectively solves the problem of easy peeling of the traditional planar bonding layer, and is especially suitable for the inner lining of metallurgical equipment that frequently withstands thermal shocks.

[0028] As Figures 5 to 8 shown, this embodiment provides a preparation device, including a base 31 and a support table 41, which constitute a main frame. Two groups of first support rods 32 and two groups of second support rods 33 are distributed at the four corners of the base 31 to form 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 table 41 through a rotating shaft, allowing the support table 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 the relative position with the first support rods 32, the support table 41 forms an inclination angle. This inclination angle can be adjusted according to the brick body size, facilitating the smooth sliding of the finished brick from the cavity of the lower template under the action of gravity, while reducing the frictional resistance between the brick body and the inner wall of the cavity during demolding, and avoiding damage to complex structures such as the tenon 21 and mortise 22 due to external collisions. The support plate 34 on the base 31 is located on one side of the lower template, and the hydraulic cylinder 42 installed on its top is connected to the upper template through a piston rod. By providing a vertical pressure through the hydraulic cylinder 42, the upper template is driven to press down the raw materials, enabling the brick body unit to be compressed and formed in the cavity.

[0029] The lower template is fixed in the center of the support table 41, and its top surface is provided with a cavity matching the shape of the brick body unit. The feeding hole penetrates through the side of the lower template and is connected to an external feeding system, such as a screw feeder, to achieve quantitative feeding of the silicon carbide aggregate. When the raw materials are injected into the cavity through the feeding hole, the hydraulic cylinder 42 drives the upper template to descend, applying pressure to the raw materials to form a silicon carbide aggregate layer.

[0030] An air outlet member 43 is provided at the bottom of the support plate 34, and a blanking plate 44 is provided on the base 31. After the air outlet member 43 is connected to an external air pump, compressed air can be ejected. Both the air outlet member 43 and the blanking plate 44 are inclined towards the outside of the base 31. When the brick body is formed, the compressed air is ejected from the air outlet member 43, pushing the finished brick out of the template onto the blanking plate 44, and then moving to the conveyor belt through the blanking plate 44 to achieve automatic demolding. This design avoids possible damage to the brick body caused by manual picking, and at the same time, the inclined blanking plate 44 can utilize gravity to accelerate the transportation of the finished product.

[0031] Multiple groups of installation through-grooves on the support table 41 are arranged along the length direction of the lower template. An electromagnetic vibrator 45 is installed in each through-groove. After the raw materials are injected into the mold cavity, the electromagnetic vibrator 45 is started, and vibration energy is transmitted through the lower template, causing air bubbles in the raw materials to escape, and at the same time promoting the close contact between the silicon carbide aggregate and the aluminum-based composite binder.

[0032] The lower template is composed of a first template 51, a second template 52 and a third template 53. A limiting border 46 is provided at the top edge of the support table 41. The first template 51 is clamped within the limiting border 46 and serves as the central fixing module of the lower template. A mold cavity corresponding to the middle structure of the brick body is provided on its top surface. The second template 52 and the third template 53 are respectively located at both ends of the first template 51, and the three are combined to form a complete working surface of the lower template. This split structure is convenient for disassembly and replacement. When it is necessary to produce tenons 21 and mortises 22 of different specifications, only the second template 52 or the third template 53 needs to be replaced, which shortens the mold adjustment time.

[0033] The first mounting frame 35 and the second mounting frame 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 horizontally. The width of the through-grooves at both ends of the first template 51 is 0.5 - 1 mm larger than the thickness of the second template 52 and the third template 53, allowing for a small 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 forming groove, and its internal contour is completely consistent with the structures of the tenon 21 and the mortise 22 of the brick unit; after the pressing mold is completed, the second template 52 and the third template 53 are separated from the first template 51, and through the inclination of the support table 41, the finished bricks can be discharged from one of the groups of through-grooves to realize the blanking operation.

[0034] The electromagnetic vibrator 45 is installed at the bottom of the first template 51, and its vibration energy is conducted to the entire lower template through the first template 51. During the raw material filling process, the electromagnetic vibrator 45 vibrates at a frequency of 100 Hz, making the silicon carbide aggregate evenly distributed in the forming cavity.

[0035] A forming block 54 protruding from one side of the second template 52 has an outer shape consistent with the contour of the arc-shaped tenon 21 of the brick unit. During the brick forming process, the curved surface structure of the tenon 21 can be directly pressed and formed. When the second template 52 is spliced with the first template 51 and the third template 53 to form a forming groove, the forming block 54 is embedded in the corresponding position, so that the raw materials are shaped around its surface under high pressure, and the tenon 21 with an arc-shaped slope is formed in one step, reducing subsequent processing procedures.

[0036] As Figure 6 、 Figure 7As shown in the figure, the forming groove 55 opened on the third template 53 has a shape adapted to the mortise groove 22 of the brick unit, and is used to press the concave structure of the mortise groove 22. The placing groove 56 penetrating through the forming groove 55 has a width slightly larger than the thickness of the elastic steel sheet 23, and the length is matched with the size of the elastic steel sheet 23. The placing groove 56 communicates the forming groove 55 with the outside world, providing an embedding channel for the elastic steel sheet 23 and ensuring that the raw material will not completely block the groove opening during filling, thus ensuring the feasibility of implanting the steel sheet.

[0037] The mounting plate 57 on one side of the third template 53 is vertically fixed, and the steel sheet implantor 58 mounted 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 implantor 58 is aligned with the placing groove 56. After the raw material is initially filled into the forming groove 55, the steel sheet implantor 58 is started, and the elastic steel sheet 23 is pushed into the predetermined position in the forming groove 55 along the placing groove 56. During the subsequent pressing process of 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 card slot 24 corresponding to the mortise groove 22, and finally a brick unit with an elastic connection structure is formed, realizing the automatic implantation of the elastic steel sheet 23 and improving the production efficiency and the consistency of component installation.

[0038] As Figure 6 , Figure 8 shown in the figure, the upper template is composed of 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, and the hydraulic cylinder 42 provides the downward pressing power for the upper template. The mounting box 64 is installed on the top of the lifting frame 61 through a rotating shaft and can rotate horizontally by 180°. This enables the mounting box 64 to flexibly switch the use positions of the fourth template 62 and the fifth template 63 to meet the production requirements of bricks with different specifications.

[0039] The motor shaft end installed on one side of the lifting frame 61 is connected to the mounting box 64 through a coupling. After the motor is started, it can drive the mounting box 64 to rotate smoothly and complete the position switching between the fourth template 62 and the fifth template 63 within 10 seconds. This motor adopts variable frequency speed regulation technology and can adjust the speed according to actual production needs to ensure that there is no violent shaking during the template switching process and avoid affecting the brick forming quality.

[0040] The fourth template 62 and the fifth template 63 are respectively fixed on both sides of the installation box 64, and they have different thicknesses and different shapes of working surfaces. The fourth template 62 has a larger thickness. When pressing the brick body, it is first pressed through the fourth template 62 to form the lower layer body 26 first. After the lower layer body 26 is formed, the fourth template 62 rises. Then, through other devices such as mechanical claws, the aluminum-based composite bonding layer 11 is placed above the lower layer body 26. At this time, it is switched to the fifth template 63, and the upper layer body 25 is formed 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 diversion groove 27.

[0041] Multiple groups of electric lifting rods 38 are arranged on the base 31. One end of the electric lifting rod 38 is provided with a rubber block 39. The rubber block 39 contacts the bottom of the lower template. During the downward pressing process of the electric lifting rod 38, it can provide additional supporting force for the support table 41. When the hydraulic cylinder 42 drives the upper template to press the raw material, the electric lifting rod 38 synchronously rises to a set height, so that the rubber block 39 contacts 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.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious 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 body unit, characterized in that: The brick body unit includes a silicon carbide aggregate layer and an aluminum-based composite bonding layer (11), and the aluminum-based composite bonding layer (11) is embedded in the silicon carbide aggregate layer; One end of the silicon carbide aggregate layer is provided with a tenon (21), the tenon (21) is arc-shaped, the other end of the silicon carbide aggregate layer is provided with a mortise (22), an elastic steel sheet (23) is arranged on the tenon (21), and a limit card slot (24) corresponding to the elastic steel sheet (23) is arranged in the mortise (22); The tenon (21) at one end of the silicon carbide aggregate layer is clamped in the mortise (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 limit card slot (24).

2. The aluminum silicon carbide carbon brick according to claim 1, characterized in that: The silicon carbide aggregate layer includes an upper body (25) and a lower body (26), 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 central part; The tenon (21) and the mortise (22) are respectively located at both ends of the lower body (26), and a plurality of groups of diversion grooves (27) are arranged on the top of the upper body (25), the diversion grooves (27) are in the shape of a dovetail, and a plurality of groups of hemispherical protrusions are arranged on the bottom surface of the diversion grooves (27) along the length direction; The top surface of the upper body (25) and the bottom surface of the lower body (26) are coated with a graphene heat conduction 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 arranged on both the top and bottom of the aluminum-based composite bonding layer (11), wherein the first raised ribs (12) extend along the length direction, the second raised ribs (13) extend along 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: A plurality of groups of anchor bolts (14) are arranged on the first raised ribs (12) along the length direction, the anchor bolts (14) are in the shape of barbs and are obliquely embedded in the silicon carbide aggregate layer at an angle of 45°.

5. A preparation device for an aluminum silicon carbide carbon brick, 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). The lower template is installed on the support table (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 formed in 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). The air outlet member (43) is connected to an external air pump. A blanking plate (44) is provided on the base (31). Both the air outlet member (43) and the blanking plate (44) are inclined; A plurality of installation through grooves are formed in the support table (41). An electromagnetic vibrator (45) is arranged in the installation through grooves, and the electromagnetic vibrator (45) is installed at the bottom of the lower template.

6. The 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 border (46) is provided at the top edge of the support table (41). The first template (51) is clamped within the limit border (46). The second template (52) and the third template (53) are respectively located at both ends of the first template (51); A first mounting bracket (35) and a second mounting bracket (36) are provided on the base (31). Electric cylinders (37) are provided on both of them. The second template (52) and the third template (53) are respectively installed on the shaft ends of the electric cylinders (37). Through grooves are formed at both ends of the first template (51). The second template (52) and the third template (53) are respectively clamped within the through grooves to form a forming groove, and the upper template is clamped within the forming groove to form a forming cavity; The electromagnetic vibrator (45) is installed at the bottom of the first template (51).

7. The 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 formed in the third template (53). A placement through groove (56) is formed in the forming groove (55), and the placement through groove (56) communicates with the forming groove (55) and the outside; A mounting plate (57) is provided on one side of the third template (53). A steel sheet implantor (58) is provided on the mounting plate (57). A feed box is provided on one side of the steel sheet implantor (58). Elastic steel sheets (23) are placed in the feed box, and the discharge port of the steel sheet implantor (58) is aligned with the placement through groove (56).

8. The 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 axially connected to the shaft end of the hydraulic cylinder (42). An installation box (64) is rotatably arranged on the lifting frame (61). A motor is arranged on one side of the lifting frame (61), and the shaft end of the motor is connected to the installation box (64). The fourth template (62) and the fifth template (63) are respectively installed on both sides of the installation box (64).

9. The preparation device according to claim 8, wherein: The thickness of the fourth template (62) is greater than the thickness of the fifth template (63), and multiple forming protrusions (65) are arranged along the length direction of the fifth template (63).

10. The preparation device according to claim 5, wherein: Multiple electric lifting rods (38) are arranged on the base (31), and a rubber block (39) is arranged 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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