Sintering pressurizing device and method for molybdenum plate blank machining

Abstract

The invention discloses a sintering pressurizing device and method for molybdenum plate blank machining, and belongs to the field of molybdenum plate blank machining. A sintering pressurizing device for molybdenum plate blank machining comprises a base and further comprises a circular plate arranged above the base, the circular plate can slide on the base, compaction grooves are formed in the circular plate, and a plurality of lower compaction frames corresponding to the compaction grooves are fixedly connected to the outer wall of the circular plate; the guide rod is fixedly connected to the base, a compaction plate is connected to the guide rod in a sliding mode, and an upper compaction frame corresponding to the lower compaction frame is arranged on the compaction plate; the compaction block is arranged in the upper compaction frame in a sliding mode, and small exhaust holes are further formed in the compaction block; the retainer plate is arranged in the compaction groove and the lower compaction frame in a sliding manner; the device has two times of buffering unloading, air hole residues in the molybdenum plate blank can be avoided, the density of the molybdenum plate blank is remarkably improved, the using effect in the follow-up working process is guaranteed, waste is avoided, and the yield and economic benefits are improved.

Description

Technical Field

[0001] This invention relates to the field of molybdenum slab processing technology, and in particular to a sintering pressure device and method for processing molybdenum slabs. Background Technology

[0002] Molybdenum slabs are blanks with a plate-like structure made from molybdenum powder through powder pressing (or other molding methods). They serve as intermediate substrates for the production of molybdenum products such as molybdenum plates and foils. The core purpose of applying pressure to the blank is to expel internal pores, enhance the metallurgical bond between molybdenum particles, improve density and mechanical properties, and prevent cracking during subsequent processing.

[0003] In existing technologies, pressurizing devices for molybdenum slabs typically lack buffering capabilities and have a fixed pressurizing distance. Due to the uneven distribution of pores within the molybdenum slab (especially powder blanks), and the fixed pressurizing distance leading to instantaneous pressure concentration, areas with high porosity cannot be adequately compacted due to insufficient buffering, resulting in incomplete pressurization, residual pores, and low density. Meanwhile, areas with low porosity or those that have already achieved initial compaction may suffer damage such as cracking, delamination, and edge chipping due to pressure overload. This leads to uneven density, a significant decrease in mechanical properties, and loss of dimensional accuracy in the molybdenum slab, making it prone to further cracking and scrapping during subsequent rolling and annealing processes. It also results in the waste of high-value molybdenum raw materials, reduced production yield, and lower economic efficiency. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a sintering pressure device and method for processing molybdenum slabs.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A sintering pressure device for processing molybdenum slabs includes a base and further includes: A circular plate is set above the base, the circular plate can slide on the base, the circular plate is provided with a compaction groove, and a plurality of lower compaction frames corresponding to the compaction groove are fixedly connected to the outer wall of the circular plate; A guide rod is fixedly connected to the base, and a compaction plate is slidably connected to the guide rod. The compaction plate is provided with an upper compaction frame corresponding to the lower compaction frame. A compaction block is slidably disposed within the upper compaction frame, and the compaction block is also provided with small venting holes. The material support plate is slidably set inside the compaction groove and the lower compaction frame.

[0006] Preferably, the material support plate is provided with a first heating plate, and the lower pressing frame is provided with a first pressure switch, the first pressure switch and the first heating plate are electrically connected by a wire.

[0007] Furthermore, an L-plate is fixedly installed at the bottom of the circular plate, and a first cylinder is fixedly connected to the L-plate. The output end of the first cylinder is provided with a first output rod, which is connected to the bottom of the material support plate. A telescopic rod is connected between the base and the circular plate, and an elastic element is sleeved on the outer wall of the telescopic rod. The two ends of the elastic element are respectively connected to the base and the circular plate.

[0008] Furthermore, a second heating plate is provided inside the compaction block, and a second pressure switch corresponding to the first pressure switch is provided at the bottom of the compaction plate. The second pressure switch and the second heating plate are electrically connected by a wire.

[0009] Furthermore, a limiting rod is provided at the top of the compacted block. The top of the limiting rod passes through the upper compacted frame and is connected to a baffle. A limiting spring is provided between the baffle and the top outer wall of the upper compacted frame. The limiting spring is sleeved on the outer wall of the limiting rod.

[0010] Preferably, a first annular plate and a second annular plate are fixedly provided on the inner wall of the exhaust hole, the first annular plate is provided at the lower end of the exhaust hole, the second annular plate is provided at the upper end of the exhaust hole, a sliding rod is slidably connected between the first annular plate and the second annular plate, and a sealing block is provided at the bottom of the sliding rod. There is a gap between the first annular plate, the second annular plate and the sliding rod. When the sealing block does not abut against the bottom of the first annular plate, the gas inside the upper compaction frame can pass through the gap between the sealing block and the first annular plate.

[0011] Furthermore, a fixing block is fixedly installed on the outer wall of the slide rod, and a locking spring is provided between the fixing block and the bottom inner wall of the second annular plate. In the initial state, the locking spring causes the sealing block to abut against the first annular plate. The top of the slide rod is placed outside the exhaust hole and connected to a pressure plate. A pressure block corresponding to the pressure plate is fixedly installed on the inner wall of the upper compaction frame.

[0012] Preferably, the compaction groove, the lower compaction frame, and the material support plate are all provided with multiple circumferentially distributed components, and the upper compaction frame and the compaction block are also provided with multiple corresponding components.

[0013] Preferably, a top plate is fixedly provided on the top of the guide rod, a second cylinder is provided on the top plate, a second output rod is provided at the output end of the second cylinder, the second output rod is connected to the compaction plate, a guide groove is also provided on the guide rod, and the circular plate and the compaction plate are slidably connected on the guide groove.

[0014] A sintering pressure method for processing molybdenum slabs comprises the following steps: Step 1: Clean the surface of the pallet to remove any impurities; Step 2: Place the molybdenum powder or molybdenum slab material on the support plate inside the lower compaction frame; Step 3: Control the compaction plate to move downwards; Step 4: Insert the compaction block into the lower compaction frame to apply pressure to the molybdenum powder or molybdenum slab material; Step 5: During the pressurization process, the compaction block can continuously move upward to achieve pressure exchange. After reaching the limit pressurization position, the circular plate will move downward to relieve the pressure and avoid damage to the molybdenum billet. Step Six: Reset all parts, remove the pressurized molybdenum slab, and perform a new round of pressurization.

[0015] Compared with the prior art, the present invention provides a sintering pressure device and method for processing molybdenum slabs, which has the following beneficial effects: 1. This sintering pressurization device for processing molybdenum slabs, through the cooperation of a compaction block and a support plate, enables pressurization of the molybdenum slab. The compaction block moves gradually during pressurization, thus achieving an initial buffering effect while applying pressure. Furthermore, the circular plate can move, providing secondary buffering and stress relief when the pressure is high, preventing the molybdenum slab from being crushed. This results in a better and more thorough pressurization effect, avoids residual pores, significantly improves the density of the molybdenum slab, and effectively protects the slab from cracks, delamination, or edge chipping. It also ensures the effectiveness of subsequent processes, avoids waste, and improves yield and economic benefits.

[0016] 2. The sintering pressurization device for processing molybdenum slabs, by setting a first heating plate and a second heating plate inside the support plate and the compaction block, can heat the molybdenum slab during the pressurization process, thereby achieving sintering pressurization. This results in better pressurization effect, ensuring close contact of molybdenum particles inside the slab, ultimately increasing the density of the slab and significantly optimizing its mechanical, electrical, and thermal conductivity. At the same time, it avoids cracking due to defects during subsequent processing, laying the foundation for the production of high-quality molybdenum products.

[0017] 3. In the sintering pressurization device for processing molybdenum slabs, when the compaction block moves continuously during the pressurization process, it will drive the slide rod to move, so that the sealing block no longer presses against the first sealing plate. At this time, the exhaust hole can realize the exhaust effect inside the upper compaction frame, which can prevent the formation of closed air pores inside the billet and ensure the density and mechanical properties of the slab.

[0018] 4. The sintering pressurization device for processing molybdenum slabs, after pressurization is completed, firstly controls the second cylinder to drive the compaction plate to rise a short distance, so that the compaction plate is no longer pressing the lower compaction frame. However, at this time, the compaction block is still inside the lower compaction frame. The first pressure switch and the second pressure switch are both depressed, which allows the first heating plate and the second heating plate to stop heating and sintering. At this time, the molybdenum slab can be slowly cooled. After cooling for a period of time, the molybdenum slab can be taken out for further cooling. On the one hand, it can avoid the high temperature of the molybdenum slab from causing harm to the workers. On the other hand, it can protect the molybdenum slab from damage due to exposure to the outside world during cooling. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the sintering pressure device and method for processing molybdenum slabs proposed in this invention; Figure 2 This is a schematic diagram of the bottom structure of a sintering pressure device for processing molybdenum slabs proposed in this invention; Figure 3 This is a cross-sectional schematic diagram of a sintering pressure device for processing molybdenum slabs proposed in this invention; Figure 4 This is a schematic diagram of the structure of a sintering pressure device for processing molybdenum slabs proposed in this invention, excluding the base. Figure 5 This is a schematic diagram of the compaction plate and compaction block in a sintering pressure device for processing molybdenum slabs proposed in this invention; Figure 6 This is a schematic diagram of the upper compaction frame and compaction block in a sintering pressure device for processing molybdenum slabs proposed in this invention; Figure 7 This is a schematic diagram of the bottom structure of the circular plate in a sintering pressure device for processing molybdenum slabs proposed in this invention; Figure 8 This is a schematic diagram of the structure of the lower compaction frame and the upper compaction frame cooperating in a sintering pressure device for processing molybdenum slabs proposed in this invention; Figure 9 This invention provides a sintering pressure device for processing molybdenum slabs. Figure 6 Enlarged view of section A.

[0020] In the diagram: 1. Base; 101. Guide rod; 2. Circular plate; 201. Compaction groove; 202. Lower compaction frame; 203. L-plate; 204. First cylinder; 205. First output rod; 206. Material support plate; 207. First heating plate; 208. Telescopic rod; 209. Elastic element; 210. First pressure switch; 3. Top plate; 301. Second cylinder; 302. Second output rod; 303. Compaction plate; 4. Upper compaction frame; 401. Compaction block; 402. Second heating plate; 403. Limiting rod; 404. Baffle; 405. Limiting spring; 406. Second pressure switch; 5. Exhaust hole; 501. First annular plate; 502. Sealing block; 503. Sliding rod; 504. Fixing block; 505. Second annular plate; 506. Locking spring; 507. Pressure plate; 508. Pressure block. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0023] Example 1: Reference Figures 1-9 A sintering pressure device for processing molybdenum slabs includes a base 1 and a circular plate 2 disposed above the base 1. The circular plate 2 is slidable on the base 1 and has a compaction groove 201. Multiple lower compaction frames 202 corresponding to the compaction groove 201 are fixedly connected to the outer wall of the circular plate 2. A guide rod 101 is fixedly connected to the base 1, and a compaction plate 303 is slidably connected to the guide rod 101. The compaction plate 303 has an upper compaction frame 4 corresponding to the lower compaction frames 202. A compaction block 401 is slidably disposed in the upper compaction frame 4 and has a small vent hole 5. A material support plate 206 is slidably disposed in the compaction groove 201 and the lower compaction frame 202.

[0024] In this embodiment, during use, the molybdenum powder material or molybdenum slab material is first placed on the support plate 206 inside the lower compaction frame 202. During the pressurization operation, the compaction plate 303 is first controlled to move downward, thereby driving the upper compaction frame 4 and the compaction block 401 to move downward. Then, the compaction block 401 will insert into the lower compaction frame 202, thereby compacting the molybdenum slab inside. While the compaction operation is being performed, the compaction plate 303 will continue to move downward, so that the compaction block 401 can better achieve the pressurization operation. The compaction block 401 abuts against the molybdenum slab. Subsequently, it will gradually move within the upper compaction frame 4, generating a certain buffer to prevent damage to the molybdenum billet. Under continuous pressure, the compaction plate 303 will also press the lower compaction frame 202, thereby causing the circular plate 2 to move downward to relieve pressure and prevent damage to the molybdenum billet. During the downward movement of the circular plate 2, the material support plate 206 will bring the molybdenum billet down together without causing damage to the molybdenum billet. In this application, the multi-layer buffer effect can improve the pressurization effect, stably discharge the gas inside the molybdenum billet, reduce the scrap rate, and avoid waste of raw materials.

[0025] Reference Figures 1-5 The compaction groove 201, the lower compaction frame 202 and the material support plate 206 are all provided with multiple circumferentially distributed components, and the upper compaction frame 4 and the compaction block 401 are also provided with multiple corresponding components, which can simultaneously perform multiple molybdenum slab pressing operations and improve the overall pressing efficiency.

[0026] Reference Figures 1-5 A top plate 3 is fixedly installed on the top of the guide rod 101. A second cylinder 301 is installed on the top plate 3. A second output rod 302 is installed at the output end of the second cylinder 301. The second output rod 302 is connected to the compaction plate 303. A guide groove is also provided on the guide rod 101. The circular plate 2 and the compaction plate 303 are slidably connected to the guide groove. In this embodiment, when the second cylinder 301 is activated, the second output rod 302 at the output end can be extended, thereby pushing the compaction plate 303 to move, thereby realizing the pressurization operation. In addition, multiple second cylinders 301 are provided, which are circumferentially distributed on the top plate 3. Multiple second cylinders 301 can work synchronously, so that the compaction plate 303 moves downward more smoothly and will not tilt. The guide groove provided on the guide rod 101 is for better limiting, so that the movement of the compaction plate 303 and the circular plate 2 is more stable.

[0027] Example 2: Reference Figures 1-9 A sintering pressure device for processing molybdenum slab blanks is basically the same as that in Embodiment 1. Furthermore, a first heating plate 207 is provided inside the material support plate 206, and a first pressure switch 210 is provided on the lower pressing frame 202. The first pressure switch 210 is electrically connected to the first heating plate 207 through a wire.

[0028] The compaction block 401 is provided with a second heating plate 402, and the bottom of the compaction plate 303 is provided with a second pressure switch 406 corresponding to the first pressure switch 210. The second pressure switch 406 and the second heating plate 402 are electrically connected by a wire. In this embodiment, when the compaction plate 303 moves downward, the compaction block 401 enters the lower compaction frame 202 to compact the molybdenum billet. As the compaction plate 303 continues to move downward, the second pressure switch 406 at the bottom of the compaction plate 303 presses the first pressure switch 210 located on the lower compaction frame 202. Under pressure, both the first pressure switch 210 and the second pressure switch 406 are pressed. At this time, the first pressure switch 210 sends a signal after being squeezed, which causes the first heating plate 207 to start working through the wire. The first heating plate 207 is located at the edge near the upper part of the support plate 206, thus heating the bottom of the molybdenum billet. After the second pressure switch 406 is squeezed, it causes the second heating plate 402 to start heating through the wire. The second heating plate 402 is located on the compaction block 401 near the bottom, thus heating the top of the molybdenum billet. Therefore, the first heating plate 207 and the second heating plate 402 can achieve comprehensive heating of the molybdenum slab, making the molybdenum particles inside the slab come into close contact, ultimately increasing the density of the slab and significantly optimizing its mechanical properties and electrical and thermal conductivity. This avoids cracking due to defects during subsequent processing and lays the foundation for the production of high-quality molybdenum products. In this application, electric heating plates are used for heating. Specifically, the first pressure switch 210, the second pressure switch 406, the first heating plate 207, and the second heating plate 402 all adopt existing technologies. Their installation method is also in accordance with existing technologies, which can be achieved by connecting them with wires. They can also be connected to the control system to pre-set their heating temperature, thereby achieving simultaneous heating and pressurization of the molybdenum slab, which can reduce problems such as uneven shrinkage and cracking caused by temperature differences. Electric heating plates are more environmentally friendly, have high heating efficiency, eliminate the heat waste caused by empty furnace burning, and have a fast heating rate, which can shorten the production cycle while ensuring the effect of use.

[0029] When the first pressure switch 210 and the second pressure switch 406 are in contact, if the compaction plate 303 presses down again, it will drive the circular plate 2 to move downward, generating a certain buffer to protect the pressurization process. Furthermore, on the compaction block 401, there are two sets of second heating plates 402, and their exhaust holes 5 are located between the two sets of heating plates 402, so there will be no interference between them.

[0030] Reference Figure 3 , Figure 4 , Figure 7 and Figure 8An L-plate 203 is fixedly installed at the bottom of the circular plate 2. A first cylinder 204 is fixedly connected to the L-plate 203. A first output rod 205 is provided at the output end of the first cylinder 204. The first output rod 205 is connected to the bottom of the material support plate 206. A telescopic rod 208 is connected between the base 1 and the circular plate 2. An elastic element 209 is sleeved on the outer wall of the telescopic rod 208. The two ends of the elastic element 209 are respectively connected to the base 1 and the circular plate 2.

[0031] In this embodiment, during pressurization, the first cylinder 204 is also in operation. At this time, the extension distance of the first output rod 205 on the first cylinder 204 is fixed, and its length remains unchanged, ensuring that the material support plate 206 will not move during the pressurization operation, thus ensuring the pressurization effect. Secondly, before use, the extension of the first output rod 205 can be controlled to control the position of the material support plate 206 within the compaction groove 201 and the lower compaction frame 202, thereby adjusting the thickness of the molybdenum slab to be pressurized. After pressurization is completed, when the pressurized molybdenum slab needs to be removed, the first cylinder 204 drives the first output rod 205 to move, pushing the material support plate 206 upward, thereby lifting the molybdenum slab so that it can be removed. Under the continuous pressure of the compaction plate 303, the circular plate 2 will compress the telescopic rod 208 and the elastic element 209 at the bottom, thereby causing the telescopic rod 208 and the elastic element 209 to contract. At this time, the circular plate 2 moves downward. The elastic element 209 can be set as a spring or a sheet, which can realize the functions of support and contraction.

[0032] Reference Figure 6 and Figure 8 The top of the compacted block 401 is provided with a limiting rod 403. The top of the limiting rod 403 passes through the upper compacted frame 4 and is connected to a baffle 404. A limiting spring 405 is provided between the baffle 404 and the top outer wall of the upper compacted frame 4. The limiting spring 405 is sleeved on the outer wall of the limiting rod 403.

[0033] In this embodiment, the limiting rod 403 makes the movement of the compaction block 401 more stable, and the limiting spring 405 makes the compaction block 401 inside the upper compaction frame 4 retract into the upper compaction frame 4 only when it is under pressure, and can automatically reset after use.

[0034] Furthermore, in this application, after pressurization is completed, the second cylinder 301 is first controlled to drive the compaction plate 303 to rise a short distance, so that the compaction plate 303 no longer compresses the lower compaction frame 202. However, at this time, the compaction block 401 is still placed inside the lower compaction frame 202. At this time, the compaction plate 303 is no longer compressing the lower compaction frame 202, and at the same time, the first pressure switch 210 and the second pressure switch 406 are both depressed, which can stop the heating and sintering of the first heating plate 207 and the second heating plate 402. At this time, the molybdenum blank can be slowly cooled, and the compaction block 401 is still located inside the lower compaction frame 202, which can protect the molybdenum blank to a certain extent and avoid the high temperature of the molybdenum blank from causing injury to the workers. When the molybdenum blank is cooled to a certain degree, the compaction plate 303 rises, and the molybdenum blank can be taken out for further cooling.

[0035] Example 3: Reference Figure 6 and Figure 9 A sintering pressurization device for processing molybdenum slabs is basically the same as in Embodiment 2. Further, a first annular plate 501 and a second annular plate 505 are fixedly arranged on the inner wall of the exhaust hole 5. The first annular plate 501 is located at the lower end of the exhaust hole 5, and the second annular plate 505 is located at the upper end of the exhaust hole 5. A sliding rod 503 is slidably connected between the first annular plate 501 and the second annular plate 505. A sealing block 502 is provided at the bottom of the sliding rod 503. There is a gap between the first annular plate 501, the second annular plate 505, and the sliding rod 503. When the sealing block 502 does not abut against the bottom of the first annular plate 501, the gas inside the upper compaction frame 4 can pass through the space between the sealing block 502 and the first annular plate 501.

[0036] A fixing block 504 is fixedly installed on the outer wall of the slide rod 503. A locking spring 506 is provided between the fixing block 504 and the bottom inner wall of the second annular plate 505. In the initial state, the locking spring 506 causes the sealing block 502 to abut against the first annular plate 501. The top of the slide rod 503 is placed outside the exhaust hole 5 and connected to a pressure plate 507. A pressure block 508 corresponding to the pressure plate 507 is fixedly installed on the inner wall of the upper compaction frame 4.

[0037] In this embodiment, after the compaction block 401 moves into the lower compaction frame 202, it will gradually move to the top inner wall of the upper compaction frame 4 under pressure. Then, the pressure plate 507 on the compaction block 401 will abut against the pressure block 508 on the inner wall of the upper compaction frame 4, thereby pushing the pressure plate 507 to move the sliding rod 503. Then, the sliding rod 503 will move the sealing block 502 at its bottom, so that it no longer abuts against the first annular plate 501. At this time, the exhaust hole 5 is in a connected state, which can assist the gas discharge. It should be noted that The vent hole 5 is relatively small, and there is a certain gap between the sealing block 502 and the bottom of the vent hole 5. Therefore, under normal circumstances, no molybdenum slab material will enter the vent hole 5 during pressurization. If any does, only a small amount of molybdenum slab material will be squeezed into the vent hole 5, which will not affect the overall pressurization effect. Furthermore, when the slide bar 503 moves, the sealing block 502 can flatten the part of the molybdenum slab again. By setting the vent hole 5, closed pores are avoided inside the billet, which can ensure the density and mechanical properties of the billet.

[0038] Example 4: A sintering pressure method for processing molybdenum slabs comprises the following steps: Step 1: Clean the surface of the material tray 206 to remove any impurities; Step 2: Place the molybdenum powder material or molybdenum slab material on the support plate 206 inside the lower compaction frame 202; Step 3: Control the compaction plate 303 to move downwards; Step 4: The compaction block 401 is inserted into the lower compaction frame 202 to apply pressure to the molybdenum powder material or molybdenum slab material; Step 5: During the pressurization process, the compaction block 401 can move upward continuously to achieve the switching. After reaching the limit pressurization position, the circular plate 2 will move downward to relieve the pressure and avoid damage to the molybdenum billet. Step Six: Reset all parts, remove the pressurized molybdenum slab, and perform a new round of pressurization.

[0039] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A sintering pressurizing device for processing of molybdenum slabs, comprising a base (1), characterized in that, Also include: The circular plate (2) is arranged above the base (1), the circular plate (2) can slide on the base (1), the circular plate (2) is provided with compaction groove (201), the outer wall of the circular plate (2) is fixedly connected with a plurality of lower compaction frame (202) corresponding with compaction groove (201); The guide rod (101) is fixedly connected on the base (1), the guide rod (101) is slidably connected with the compaction plate (303), the compaction plate (303) is provided with upper compaction frame (4) corresponding with lower compaction frame (202); The compaction block (401) is slidably arranged in the upper compaction frame (4), and the compaction block (401) is further provided with an exhaust hole (5); The material supporting plate (206) is slidably arranged in the compaction groove (201) and the lower compaction frame (202).

2. The sintering pressurizing device for molybdenum slab processing according to claim 1, characterized by The first heating plate (207) is arranged in the material supporting plate (206), the first pressure switch (210) is arranged on the lower compaction frame (202), and the first pressure switch (210) and the first heating plate (207) are electrically connected through wires.

3. The sintering pressurizing device for molybdenum slab processing according to claim 2, characterized by The bottom of the circular plate (2) is fixedly provided with an L plate (203), the first cylinder (204) is fixedly connected to the L plate (203), the output end of the first cylinder (204) is provided with a first output rod (205), the first output rod (205) is connected to the bottom of the material supporting plate (206), the base (1) and the circular plate (2) are connected with an extension rod (208), the outer wall of the extension rod (208) is sleeved with an elastic element (209), and the two ends of the elastic element (209) are connected with the base (1) and the circular plate (2) respectively.

4. The sintering pressurizing device for molybdenum slab processing according to claim 2, characterized by The second heating plate (402) is arranged in the compaction block (401), the second pressure switch (406) corresponding to the first pressure switch (210) is arranged at the bottom of the compaction plate (303), and the second pressure switch (406) and the second heating plate (402) are electrically connected through wires.

5. The sintering pressurizing device for molybdenum slab processing according to claim 4, characterized by The top of the compaction block (401) is provided with a limiting rod (403), the top of the limiting rod (403) penetrates through the upper compaction frame (4) and is connected with a baffle (404), the limiting spring (405) is arranged between the top outer wall of the upper compaction frame (4) and the baffle (404), and the limiting spring (405) is sleeved on the outer wall of the limiting rod (403).

6. The sintering pressurizing device for molybdenum slab processing according to claim 1, characterized by The inner wall of the exhaust small hole (5) is respectively fixedly provided with a first annular plate (501) and a second annular plate (505), the first annular plate (501) is arranged at the lower end of the exhaust small hole (5), the second annular plate (505) is arranged at the upper end of the exhaust small hole (5), a sliding rod (503) is slidably connected between the first annular plate (501) and the second annular plate (505), the bottom of the sliding rod (503) is provided with a blocking block (502), and a gap is formed between the first annular plate (501), the second annular plate (505) and the sliding rod (503). When the blocking block (502) is not in contact with the bottom of the first annular plate (501), the gas in the upper compaction frame (4) can pass between the blocking block (502) and the first annular plate (501).

7. The sintering pressurizing device for molybdenum slab processing according to claim 6, characterized by A fixed block (504) is fixedly arranged on the outer wall of the sliding rod (503), a locking spring (506) is arranged between the fixed block (504) and the inner wall of the bottom of the second annular plate (505), in the initial state, the locking spring (506) makes the blocking block (502) abut against the first annular plate (501), and the top of the sliding rod (503) is arranged outside the exhaust small hole (5) and connected with a pressing plate (507). The inner wall of the upper compaction frame (4) is fixedly provided with a pressing block (508) corresponding to the pressing plate (507).

8. The sintering pressurizing device for molybdenum slab processing according to claim 1, characterized by The compaction groove (201), the lower compaction frame (202) and the material supporting plate (206) are all provided with a plurality of circumferentially distributed ones, and the upper compaction frame (4) and the compaction block (401) are also provided with a plurality of corresponding ones.

9. The sintering pressurizing device for molybdenum slab processing according to claim 1, characterized by The top of the guide rod (101) is fixedly provided with a top plate (3), the top plate (3) is provided with a second cylinder (301), the output end of the second cylinder (301) is provided with a second output rod (302), the second output rod (302) is connected to a compaction plate (303), and the guide rod (101) is also provided with a guide groove, and the circular plate (2) and the compaction plate (303) are slidably connected to the guide groove.

10. A sintering and pressing method for molybdenum slab processing, comprising the sintering and pressing apparatus for molybdenum slab processing according to any one of claims 1 to 9, characterized in that, The following steps are adopted: Step one: clean the surface of the material supporting plate (206) to avoid other impurities; Step two: place the molybdenum powder material or molybdenum slab material on the material supporting plate (206) in the lower compaction frame (202); Step three: control the compaction plate (303) to move downward; Step four: the compaction block (401) is inserted into the lower compaction frame (202) to press the molybdenum powder material or molybdenum slab material; Step five: during the pressing process, the compaction block (401) can continuously move upward to realize replacement, and after reaching the limit pressing position, the circular plate (2) moves downward to unload the force, so as to avoid damaging the molybdenum slab; Step six: reset each part, take out the pressed molybdenum slab, and perform a new round of pressing operation.

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