A mold for preparing a molybdenum-rhenium alloy pipe

Abstract

This invention discloses a mold for preparing molybdenum-rhenium alloy tubes, belonging to the technical field of alloy tube molds. It includes a mounting base, with a stamping bracket fixedly connected to the upper end of the mounting base. A stamping machine for stamping molybdenum-rhenium metal powder is fixedly connected to the upper end of the stamping bracket. A pressure rod is fixedly connected to the output shaft of the stamping machine. A forming cylinder is mounted on the upper end of the mounting base directly below the pressure rod. A core sleeve is slidably inserted inside the pressure rod. In use, the mold utilizes compressed air during the pressing process to drive an internal vibrating core. The air pushes a sliding rod up and down, causing the vibrating discs to open rapidly and impact the inner wall of the vibrating tube. This "internal vibration" from the inside out directly acts on the powder contact surface, effectively breaking powder agglomeration and bridging, significantly improving the filling density of the molybdenum-rhenium powder, which is beneficial for subsequent stamping and forming.

Description

Technical Field

[0001] This invention relates to the field of alloy pipe mold technology, specifically a mold for preparing molybdenum-rhenium alloy pipes. Background Technology

[0002] In existing molds for preparing molybdenum-rhenium alloy tubes, a molybdenum mandrel is first placed in the positioning hole of the lower mold, forming an annular cavity with the mold cavity. Molybdenum-rhenium alloy powder is then placed into the annular cavity. Under pressure, the upper mold pressure head presses into the mold cavity from the top. The molybdenum-rhenium alloy powder in the mold cavity solidifies under the pressure of the lower and upper mold pressure heads, forming a molybdenum-rhenium alloy ring blank. The molybdenum-rhenium alloy ring blank and the molybdenum mandrel together constitute a molybdenum-rhenium alloy rod blank. After pressing and forming, the upper die head is removed from the die cavity, and then the molybdenum-rhenium alloy billet is pushed out of the die cavity by the lower die head. Finally, the molybdenum-rhenium alloy billet is removed for subsequent processing. The molybdenum-rhenium alloy billet is then sintered, extruded, and forged to obtain a molybdenum-rhenium alloy rod. The molybdenum-rhenium alloy rod is first processed by copper rod electrical discharge machining to machine a through hole in the center. A metal cutting wire is passed through the through hole, and the molybdenum mandrel in the center of the molybdenum-rhenium alloy rod is removed by wire cutting, finally obtaining the molybdenum-rhenium alloy tube.

[0003] However, currently, when stamping molybdenum-rhenium alloy powder, the process is simply to pour the powder into a mold and then stamp it directly. In deep-hole or slender tubular molds, the molybdenum-rhenium metal powder is prone to "bridging". It is difficult to fill the powder in the depths evenly and densely by relying solely on external pressure, resulting in pores or uneven density inside the final tube. Summary of the Invention

[0004] The purpose of this invention is to provide a mold for preparing molybdenum-rhenium alloy pipes, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A mold for preparing molybdenum-rhenium alloy pipes includes a mounting base. A stamping bracket is fixedly connected to the upper end of the mounting base. A stamping machine for stamping molybdenum-rhenium metal powder is fixedly connected to the upper end of the stamping bracket. A pressure rod is fixedly connected to the output shaft of the stamping machine. A forming cylinder is mounted on the upper end of the mounting base directly below the pressure rod. A core sleeve is slidably inserted inside the pressure rod. A pressure sleeve for extruding molybdenum-rhenium metal powder is damped and slidably connected to the sleeve wall of the core sleeve. A vibrating core for driving the core sleeve to vibrate is threadedly connected inside the forming cylinder. A power cylinder is fixedly connected to the lower end of the vibrating core. The power cylinder is located at the lower end of the mounting base. The upper end of the mounting base is fixedly connected to a pneumatic pipe for providing a vibration source. The outlet of the pneumatic pipe is rotatably connected to a first air guide pipe. The end of the first air guide pipe away from the pneumatic pipe is connected to a power cylinder. The upper end of the mounting base is also fixedly connected to a recovery pipe. The inlet end of the recovery pipe is connected to the vibration core through a metal pipe. The outlet end of the recovery pipe is fixedly connected to a purge pipe. The end of the purge pipe away from the recovery pipe is fixedly connected to a purge head. The purge head is equipped with a solenoid valve. The upper end of the mounting base is provided with a storage groove. Several bearing blocks are slidably connected inside the storage groove. A core sleeve is inserted into the upper end of each bearing block.

[0007] As a further embodiment of the present invention, the pressure rod includes a rod body, the rod body having a receiving cavity inside, the core sleeve being inserted into the receiving cavity, a limiting head being fixedly connected to the top of the receiving cavity, the lower end of the limiting head having an arc-shaped protrusion, the top of the core sleeve having a locking port, the locking port being funnel-shaped, the lower inner diameter of the locking port being larger than the upper inner diameter, and three limiting balls being slidably connected inside the locking port, the lower ends of the limiting balls being fixedly connected to the bottom of the locking port through a support spring, and a magnet being fixedly connected inside the stamping bracket.

[0008] As a further embodiment of the present invention, a movable seat for driving the stamping machine is installed on the upper end of the mounting base. The movable seat includes a limiting guide rail symmetrically installed on the upper end of the mounting base. A threaded rod is rotatably threaded inside the limiting guide rail. The stamping bracket includes two support plates. The stamping machine is fixed on the upper end of the support plates. A support rod is fixedly connected between the two support plates. The support rod is slidably connected inside the limiting guide rail, and the support rod is threadedly connected to the threaded rod.

[0009] As a further embodiment of the present invention, a power motor is fixedly connected to the lower end of the mounting base, a power pulley is fixedly connected to the output shaft of the power motor, one end of the two threaded rods is located outside the limiting guide rail, and a conveyor pulley is fixedly connected to the end of the threaded rod outside the limiting guide rail. The conveyor pulley and the power pulley are connected by a synchronous belt.

[0010] As a further embodiment of the present invention, the pneumatic tube includes a tube body, a pressure piston is slidably connected inside the tube body, a connecting spring is fixedly connected to one end of the pressure piston, and a pull rope is fixedly connected to the other end. A winding wheel is rotatably connected to one end of the tube body near the stamping bracket, and the pull rope is wound around the outside of the winding wheel. A winding gear is fixedly connected to one end of the winding wheel away from the tube body, and a connecting valve is rotatably connected to the middle of the winding gear. An air inlet valve is also provided on the outer wall of the tube body, and the connecting valve is fixedly connected to the first air guide tube.

[0011] As a further embodiment of the present invention, the winding gear is externally meshed with a power gear, the power gear is rotatably connected to the mounting base, and a connecting rod is fixedly connected to the output shaft of the press. A power rack is vertically fixedly connected to the end of the connecting rod away from the output shaft of the press, and the power rack meshes with the power gear.

[0012] As a further embodiment of the present invention, the vibrating core includes a vibrating tube, and a sliding rod is slidably connected inside the vibrating tube. Several sets of fixed discs are slidably connected to the wall of the sliding rod, with two fixed discs in each set, and the two fixed discs are symmetrically distributed vertically. A support ring is fixedly connected to the side wall of the fixed disc by a connecting rod, and the support ring is fixedly connected to the vibrating tube.

[0013] As a further embodiment of the present invention, an upper sliding sleeve and a lower sliding sleeve are fixedly connected to the ends of the sliding rod located away from each other on the rod wall of the two fixed discs, respectively. Several vibration petals are fixedly connected to the outer walls of the upper sliding sleeve and the lower sliding sleeve, and a power sleeve is also fixedly connected to the rod wall of the sliding rod.

[0014] As a further embodiment of the present invention, the power cylinder includes an air shell, the outer wall of which has a plurality of pressure relief ports. A spiral power plate is rotatably connected inside the air shell. The end of the first air guide pipe away from the power cylinder is fixedly connected to the bottom end of the air shell. A baffle plate is fixedly connected to the upper end of the spiral power plate. An exhaust window is provided on the wall of the baffle plate. A flow guide is provided between the air shell and the vibration pipe. The inner diameter of the pressure relief port is smaller than the inner diameter of the flow guide. The baffle plate slides against the inner top wall of the air shell. An exhaust valve is also provided on the outer wall of the air shell. The exhaust valve is connected to the metal pipe at the air inlet end of the recovery pipe.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. When the mold of the present invention is used, the compressed air during the pressing process drives the internal vibrating core. The air pushes the slide bar to move up and down, causing the vibrating petals to open rapidly and impact the inner wall of the vibrating tube. This "internal vibration" from the inside out directly acts on the powder contact surface, effectively breaking powder agglomeration and bridging, significantly improving the filling density of molybdenum rhenium powder, which is beneficial for subsequent stamping and forming.

[0016] 2. When the mold of the present invention is used, the exhaust gas after the driving vibration core has done work is collected through the recovery pipe and sprayed out through the blow head during the reset stage. This not only utilizes the energy of the exhaust gas, but also realizes the automatic cleaning of the scattered powder around the molding cylinder, ensuring the cleanliness of the processing environment and preventing the accumulation of powder from affecting the next round of processing. Attached Figure Description

[0017] Figure 1 The structure of a mold for manufacturing molybdenum-rhenium alloy pipes Figure 1 .

[0018] Figure 2 The structure of a mold for manufacturing molybdenum-rhenium alloy pipes Figure 2 .

[0019] Figure 3 This is an exploded view of the pressure rod and core sleeve in a mold used for manufacturing molybdenum-rhenium alloy pipes.

[0020] Figure 4 This is a structural diagram of a pneumatic tube in a mold used for manufacturing molybdenum-rhenium alloy tubing.

[0021] Figure 5 This is a cross-sectional view of a pressure rod in a mold used for manufacturing molybdenum-rhenium alloy tubing.

[0022] Figure 6 This is a cross-sectional view of the vibrating core in a mold used for manufacturing molybdenum-rhenium alloy pipes.

[0023] Figure 7 This is a structural diagram of a vibration valve in a mold used for manufacturing molybdenum-rhenium alloy pipes.

[0024] Figure 8 This is a structural diagram of the spiral power plate in a mold used for manufacturing molybdenum-rhenium alloy pipes.

[0025] Figure 9 A mold for preparing molybdenum-rhenium alloy pipes Figure 5 Enlarged diagram of point A in the diagram.

[0026] In the diagram: 1. Mounting base; 2. Stamping bracket; 3. Stamping machine; 4. Forming cylinder; 5. Pressure rod; 6. Pneumatic pipe; 7. Recovery pipe; 8. Moving base; 9. Vibrating core; 10. Power cylinder; 11. Magnetic block; 110. Gas casing; 111. Spiral power plate; 112. Baffle plate; 113. Exhaust window; 114. Flow guide; 115. First air guide pipe; 116. Storage slot; 200. Support plate; 201. Support rod; 500. Rod body; 501. Core sleeve; 502. Pressure sleeve; 503. Locking port; 504. Limiting ball; 505. Limiting rod; 506. Limiting head; 600. Pipe body; 601. Pressure piston; 602. Pull rope; 603. Take-up reel; 604. Take-up gear; 605. Connecting valve; 606. Power rack; 607. Connecting rod; 608. Power gear; 700. Purge pipe; 701. Purge head; 800. Limiting guide rail; 801. Threaded rod; 802. Power motor; 803. Conveyor pulley; 804. Power pulley; 900. Vibration pipe; 901. Slide rod; 902. Support ring; 903. Fixed plate; 904. Upper sliding sleeve; 905. Vibration flap; 906. Lower sliding sleeve; 907. Power sleeve. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figures 1-3 In this embodiment of the invention, a mold for preparing molybdenum-rhenium alloy tubing includes a mounting base 1. The surface of the mounting base 1 has several mounting holes. The mounting base 1 can be fixedly connected to a workbench via a screw, nut, and the mounting holes, thereby increasing the stability of the mounting base 1. A stamping bracket 2 is fixedly connected to the upper end of the mounting base 1. A stamping machine 3 for stamping molybdenum-rhenium metal powder is fixedly connected to the upper end of the stamping bracket 2. A pressure rod 5 is fixedly connected to the output shaft of the stamping machine 3. The upper end of the mounting base 1 is located directly below the pressure rod 5. A forming cylinder 4 is installed, which is detachably connected to the mounting base 1 by several bolts. A core sleeve 501 is slidably inserted inside the pressure rod 5. The core sleeve 501 is made of molybdenum material. A pressure sleeve 502 for extruding molybdenum rhenium metal powder is damped and slidably connected to the sleeve wall of the core sleeve 501. The outer diameter of the pressure sleeve 502 matches the inner diameter of the forming cylinder 4. A vibrating core 9 that drives the core sleeve 501 to vibrate is threaded inside the forming cylinder 4. A power cylinder 10 is fixedly connected to the lower end of the vibrating core 9. The power cylinder 10 is located at the lower end of the mounting base 1. The upper end of the mounting base 1 is fixedly connected to a pneumatic pipe 6 for providing a vibration source. The outlet of the pneumatic pipe 6 is rotatably connected to a first air guide pipe 115. The end of the first air guide pipe 115 away from the pneumatic pipe 6 is connected to the power cylinder 10. The upper end of the mounting base 1 is also fixedly connected to a recovery pipe 7. The air inlet of the recovery pipe 7 is connected to the vibration core 9 through a metal pipe. The air outlet of the recovery pipe 7 is fixedly connected to a purge pipe 700. The end of the purge pipe 700 away from the recovery pipe 7 is fixedly connected to a purge head 701. The purge head 701 is equipped with a solenoid valve. The upper end of the mounting base 1 is provided with a storage groove 116. Several bearing blocks are slidably connected inside the storage groove 116. The bearing blocks are square. A core sleeve 501 is inserted into the upper end of the bearing block.

[0029] Specifically, during operation, the press 3 is first controlled to move the pressure rod 5 downward, so that the core sleeve 501 is inserted into the inside of the forming cylinder 4. When the core sleeve 501 is inserted into the inside of the forming cylinder 4, it will be fitted over the outside of the vibrating core 9. Then, molybdenum-rhenium metal powder is poured into the forming cylinder 4. Finally, the press 3 is started to drive the pressure sleeve 502 to squeeze the molybdenum-rhenium metal powder in the forming cylinder 4, thereby completing the production of the molybdenum-rhenium alloy tube.

[0030] Please see Figure 3and Figure 9 The pressure rod 5 includes a rod body 500, the inside of which is provided with a receiving cavity. A core sleeve 501 is inserted into the receiving cavity. Specifically, a rubber membrane is fixedly connected to the inner wall of the receiving cavity. The rubber membrane increases the sliding resistance between the core sleeve 501 and the rod body 500. A limiting head 506 is fixedly connected to the top of the receiving cavity. The lower end of the limiting head 506 has an arc-shaped protrusion. A locking port 503 is provided at the top of the core sleeve 501. The locking port 503 is funnel-shaped. The lower inner diameter is larger than the upper inner diameter, and three limiting balls 504 are slidably connected inside the locking port 503. The lower end of the limiting ball 504 is fixedly connected to the bottom of the locking port 503 through a support spring. Specifically, three limiting rods 505 are fixedly connected inside the locking port 503. The limiting ball 504 is slidably connected to the rod wall of the limiting rod 505. A magnet block 11 is fixedly connected inside the stamping bracket 2. The magnet block 11 is set as a ring and is sleeved on the outside of the pressure rod 5.

[0031] Please see Figure 1 and Figure 2 The upper end of the mounting base 1 is equipped with a movable base 8 that drives the stamping machine 3 to move. The movable base 8 includes a limiting guide rail 800 symmetrically mounted on the upper end of the mounting base 1. A threaded rod 801 is rotatably threaded inside the limiting guide rail 800. The stamping bracket 2 includes two support plates 200. The stamping machine 3 is fixed to the upper end of the support plates 200. A support rod 201 is fixedly connected between the two support plates 200. The support rod 201 is slidably connected inside the limiting guide rail 800, and the support rod 201 and the threaded rod 801 are connected... The mounting base 1 is connected by a threaded connection. A power motor 802 is fixedly connected to the lower end of the mounting base 1. A power pulley 804 is fixedly connected to the output shaft of the power motor 802. One end of two threaded rods 801 is located outside the limiting guide rail 800. A transmission pulley 803 is fixedly connected to the end of the threaded rods 801 located outside the limiting guide rail 800. The transmission pulley 803 and the power pulley 804 are connected by a synchronous belt. In order to increase the stability of the transmission, two tensioning wheels are also rotatably connected to the outer wall of the mounting base 1.

[0032] Specifically, after the molybdenum-rhenium metal powder in the forming cylinder 4 is pressed, the power motor 802 can be turned on when replacing the new core sleeve 501. After the power motor 802 is turned on, it can drive the stamping machine 3 to move on the mounting base 1. When the pressure rod 5 on the output shaft of the stamping machine 3 moves above the new core sleeve 501, the pressure rod 5 can be controlled to move downward and connect with the new core sleeve 501. More specifically, the width of the bearing block inside the receiving groove 116 is a fixed value. For example, if the width of the bearing block is 20cm, then the distance from the center of the bearing block to the edge of the bearing block is 10cm. At this time, it is only necessary to control the moving distance of the stamping machine 3 to accurately align the pressure rod 5 with the core sleeve 501.

[0033] Please see Figure 1 , Figure 2 and Figure 4 The pneumatic tube 6 includes a tube body 600. A pressure piston 601 is slidably connected inside the tube body 600. A connecting spring is fixedly connected to one end of the pressure piston 601, and a pull rope 602 is fixedly connected to the other end. A take-up reel 603 is rotatably connected to the end of the tube body 600 near the stamping bracket 2. The pull rope 602 is wound around the outside of the take-up reel 603. A take-up gear 604 is fixedly connected to the end of the take-up reel 603 away from the tube body 600. A connecting valve 605, a pressure valve, is rotatably connected to the middle of the take-up gear 604. An air inlet valve, also a one-way valve, is also provided on the outer wall of the tube body 600. The connecting valve 605 is fixedly connected to the first air guide tube 115. The take-up gear 604 is externally engaged with… The power gear 608 is rotatably connected to the mounting base 1. A bearing plate is fixedly connected to the upper end of the mounting base 1. The power gear 608 is rotatably connected to the bearing plate. A connecting rod 607 is also fixedly connected to the output shaft of the press 3. A power rack 606 is vertically fixedly connected to the end of the connecting rod 607 away from the output shaft of the press 3. The power rack 606 meshes with the power gear 608. A movable window is provided at the upper end of the mounting base 1. The length of the movable window is less than the length of the mounting base 1. The power rack 606 passes through the mounting base 1 through the movable window. When connecting the mounting base 1 to the worktable, space should be reserved for the downward movement of the power rack 606 to avoid the worktable interfering with the movement of the power rack 606.

[0034] Please see Figures 5-8 The vibrating core 9 includes a vibrating tube 900. A sliding rod 901 is slidably connected inside the vibrating tube 900. Several sets of fixed discs 903 are slidably connected to the wall of the sliding rod 901. Each set of fixed discs 903 consists of two discs, which are symmetrically distributed vertically. A support ring 902 is fixedly connected to the side wall of the fixed disc 903 via a connecting rod. The support ring 902 is fixedly connected to the vibrating tube 900. An upper sliding sleeve 904 and a lower sliding sleeve 906 are fixedly connected to the wall of the sliding rod 901 at the ends of the two fixed discs 903 that are furthest apart. Specifically, the upper sliding sleeve 904 is located above the upper fixed disc 903, and the lower sliding sleeve 906 is located at... Below the fixed disk 903, several vibration petals 905 are fixedly connected to the outer wall of the upper sliding sleeve 904 and the outer wall of the lower sliding sleeve 906. The vibration petals 905 are elastic. In the initial state, the vibration petals 905 below the fixed disk 903 are in an open state, and the vibration petals 905 above the fixed disk 903 are in an open state. A power sleeve 907 is also fixedly connected to the wall of the sliding rod 901. The power sleeve 907 is funnel-shaped and its opening faces downward. The maximum outer diameter of the power sleeve 907 matches the inner diameter of the vibration tube 900, that is, the outer wall of the power sleeve 907 slides against the inside of the vibration tube 900.

[0035] Specifically, when the slide rod 901 moves up and down in the vibrating tube 900, it will drive the upper sliding sleeve 904 and the lower sliding sleeve 906 to move together. At this time, the vibration petal 905 located below the fixed plate 903 will hit the fixed plate 903 and then quickly open and hit the outer wall of the vibrating tube 900. The vibration petal 905, which was initially in the open state, will separate from the fixed plate 903 and then return to the closed state under its own elastic force. The up and down movement of the slide rod 901 can make the vibrating tube 900 vibrate, thereby driving the core sleeve 501 to vibrate, which in turn drives the molybdenum rhenium metal powder to vibrate, making the molybdenum rhenium metal powder in the forming cylinder 4 more compact and easier for subsequent stamping.

[0036] The power cylinder 10 includes a gas shell 110. Several pressure relief ports are provided on the outer wall of the gas shell 110. A spiral power plate 111 is rotatably connected inside the gas shell 110. The end of the first air guide pipe 115 away from the power cylinder 10 is fixedly connected to the bottom end of the gas shell 110. A baffle plate 112 is fixedly connected to the upper end of the spiral power plate 111. An exhaust window 113 is provided on the wall of the baffle plate 112. A guide port 114 is provided between the gas shell 110 and the vibration tube 900. The inner diameter of the pressure relief port is smaller than the inner diameter of the guide port 114. The baffle plate 112 slides against the inner top wall of the gas shell 110. An exhaust valve is also provided on the outer wall of the gas shell 110. The exhaust valve is connected to the metal pipe at the air inlet end of the recovery pipe 7. The exhaust valve is located above the power sleeve 907.

[0037] The working principle of this invention is: When using the mold of this invention, the press 3 first drives the pressure rod 5 to move into the forming cylinder 4, so that the core sleeve 501 enters the forming cylinder 4. When the lower end face of the core sleeve 501 is in contact with the inner bottom end face of the forming cylinder 4, the movement of the pressure rod 5 stops. At this time, the core sleeve 501 is fitted over the vibrating core 9, and the pressure sleeve 502 is positioned above the forming cylinder 4. (Specifically, the pressure rod 5 is controlled by the press 3, meaning the movement stroke of the pressure rod 5 is controllable, while the depth of the forming cylinder 4, the length of the core sleeve 501, and the position of the pressure sleeve 502 on the surface of the core sleeve 501 are all...) Since it is fixed, it is only necessary to precisely control the downward movement distance of the pressure rod 5 (that is, stop the pressure rod 5 when the lower end of the core sleeve 501 contacts the bottom surface inside the forming cylinder 4), and then add molybdenum rhenium metal powder into the forming cylinder 4. After the addition is completed, continue to control the downward movement of the pressure rod 5. At this time, since the core sleeve 501 is blocked and cannot move, it can only slide into the rod body 500, while the pressure sleeve 502 will be pushed downward by the rod body 500, thereby causing the pressure sleeve 502 to move into the forming cylinder 4 to squeeze the molybdenum rhenium metal powder, thus completing the production of the molybdenum rhenium alloy tube. During the movement of the press 3 and the pressure rod 5, the power rack 606 drives the power gear 608 to rotate. During the rotation of the power gear 608, the pull rope 602 is wound up by the winding wheel 603. During the winding of the pull rope 602, the air inside the tube 600 is squeezed by the pressure piston 601. After being compressed, the air inside the tube 600 enters the air shell 110 through the first air guide pipe 115. The compressed air entering the air shell 110 blows the spiral power plate 111 to rotate (specifically, during the process of the core sleeve 501 entering the forming cylinder 4, the pressure piston 601 first compresses the air inside the tube 600. When the pressure sleeve 502 moves further downward, the pressure piston 601 further compresses the air inside the tube 600, thereby compressing the air and causing it to flow into the air shell 110). During the rotation of the spiral power plate 111, it drives the baffle plate 112 to rotate. As the baffle plate 112 rotates, the exhaust window 113 coincides with the guide port 114. At this time, the compressed air inside the air casing 110 enters the vibrating tube 900, thereby pushing the power sleeve 907. This, in turn, uses the power sleeve 907 to drive the slide rod 901 to move upwards (towards...). Figure 6 (For reference), during the upward movement of the slide bar 901, a portion of the vibration petals 905 will be pushed open by the fixed plate 903 and impact the inner wall of the vibration tube 900, thereby causing the vibration tube 900 to vibrate. When the vibration tube 900 vibrates, it will further drive the core sleeve 501 to rotate, thereby using the core sleeve 501 to vibrate the molybdenum-rhenium metal powder in the forming cylinder 4, making the molybdenum-rhenium metal powder in the forming cylinder 4 more compact, which is convenient for subsequent stamping. As the baffle plate 112 rotates, the guide port 114 will be blocked again. When the guide port 114 is blocked, the slide bar 901 will be reset under the action of the elasticity of the vibration petals 905. During the reset process of the slide bar 901, another portion of the vibration petals 905 will impact the inner wall of the vibration tube 900. In this way, the vibration tube 900 can be hit multiple times in a short period of time, thereby increasing the vibration effect.

[0038] After the power sleeve 907 is pushed upward by compressed air, the compressed air that enters the vibration tube 900 will enter the recovery tube 7 through the exhaust valve and metal tube for temporary storage. During the movement of the core sleeve 501 into the rod body 500, the limiting head 506 inserts into the locking port 503. After the stamping is completed, the control press 3 drives the pressure rod 5 to reset. During the upward movement of the pressure rod 5, the limiting head 506 is restricted. At this time, the pressure rod 5 drives the core sleeve 501 to move upward together, thereby pulling the stamped molybdenum-rhenium alloy tube out of the forming cylinder 4. (It is worth noting that molybdenum and molybdenum-rhenium alloy tubes not only have similar physical properties, but also similar chemical properties, therefore...) During stamping, the core sleeve 501 and the molybdenum-rhenium alloy tube will fit together very closely, that is, the core sleeve 501 and the molybdenum-rhenium alloy tube will be very tightly bonded, so that the molybdenum-rhenium alloy tube can be pulled out from the forming cylinder 4 through the core sleeve 501. As the reset locking port 503 of the pressure rod 5 gradually approaches the magnet block 11, when the locking port 503 approaches the magnet block 11, the magnet will attract several limiting balls 504, thereby freeing the limiting head 506 from the restraint of the limiting balls 504, thus making it easier for the operator to manually remove the molybdenum-rhenium alloy tube.

[0039] During the resetting process of the pressure rod 5, the solenoid valve inside the blow head 701 is opened. At this time, the air in the recovery pipe 7 will be sprayed out through the blow head 701, thereby blowing around the forming cylinder 4 and cleaning the molybdenum and rhenium metal powder.

[0040] After replacing the new core sleeve 501, the operator puts the pressure sleeve 502 back onto the outer wall of the new core sleeve 501, thus preparing for the next stamping.

[0041] 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 mold for preparing molybdenum-rhenium alloy tubing, comprising a mounting base (1), characterized in that, The upper end of the mounting base (1) is fixedly connected to a stamping bracket (2), the upper end of the stamping bracket (2) is fixedly connected to a stamping machine (3) for stamping molybdenum-rhenium metal powder, the output shaft of the stamping machine (3) is fixedly connected to a pressure rod (5), the upper end of the mounting base (1) is directly below the pressure rod (5) and a forming cylinder (4) is installed. The inside of the pressure rod (5) is slidably inserted with a core sleeve (501), the sleeve wall of the core sleeve (501) is damped and slidably connected with a pressure sleeve (502) for extruding molybdenum-rhenium metal powder, the inside of the forming cylinder (4) is threadedly connected with a vibrating core (9) that drives the core sleeve (501) to vibrate, the lower end of the vibrating core (9) is fixedly connected to a power cylinder (10), and the power cylinder (10) is located at the lower end of the mounting base (1). The upper end of the mounting base (1) is fixedly connected to a pneumatic tube (6) for providing a vibration source. The outlet of the pneumatic tube (6) is rotatably connected to a first air guide tube (115). The end of the first air guide tube (115) away from the pneumatic tube (6) is connected to a power cylinder (10). The upper end of the mounting base (1) is also fixedly connected to a recovery tube (7). The inlet end of the recovery tube (7) is connected to the vibration core (9) through a metal tube. The outlet end of the recovery tube (7) is fixedly connected to a purge tube (700). The end of the purge tube (700) away from the recovery tube (7) is fixedly connected to a purge head (701). The purge head (701) is equipped with a solenoid valve. The upper end of the mounting base (1) is provided with a storage groove (116). Several bearing blocks are slidably connected inside the storage groove (116). A core sleeve (501) is inserted into the upper end of the bearing block.

2. The mold for preparing molybdenum-rhenium alloy tubing according to claim 1, characterized in that, The pressure rod (5) includes a rod body (500), the rod body (500) has a storage cavity inside, the core sleeve (501) is inserted into the storage cavity, the top of the storage cavity is fixedly connected to a limiting head (506), the lower end of the limiting head (506) is provided with an arc-shaped protrusion, the top of the core sleeve (501) is provided with a locking port (503), the locking port (503) is set in the shape of a funnel, the lower inner diameter of the locking port (503) is larger than the upper inner diameter, and three limiting balls (504) are slidably connected inside the locking port (503). The lower end of the limiting ball (504) is fixedly connected to the bottom of the locking port (503) through a support spring, and a magnet block (11) is fixedly connected inside the stamping bracket (2).

3. The mold for preparing molybdenum-rhenium alloy tubing according to claim 2, characterized in that, The upper end of the mounting base (1) is equipped with a movable base (8) that drives the stamping machine (3) to move. The movable base (8) includes a limiting guide rail (800) symmetrically installed on the upper end of the mounting base (1). The limiting guide rail (800) is internally connected to a threaded rod (801). The stamping bracket (2) includes two support plates (200). The stamping machine (3) is fixed on the upper end of the support plate (200). A support rod (201) is fixedly connected between the two support plates (200). The support rod (201) is slidably connected in the limiting guide rail (800), and the support rod (201) is threadedly connected to the threaded rod (801).

4. The mold for preparing molybdenum-rhenium alloy pipes according to claim 3, characterized in that, A power motor (802) is fixedly connected to the lower end of the mounting base (1). A power pulley (804) is fixedly connected to the output shaft of the power motor (802). One end of the two threaded rods (801) is located outside the limiting guide rail (800), and a conveyor pulley (803) is fixedly connected to the end of the threaded rod (801) located outside the limiting guide rail (800). The conveyor pulley (803) and the power pulley (804) are connected by a synchronous belt.

5. The mold for preparing molybdenum-rhenium alloy pipes according to claim 1, characterized in that, The pneumatic tube (6) includes a tube body (600), a pressure piston (601) is slidably connected inside the tube body (600), a connecting spring is fixedly connected to one end of the pressure piston (601), and a pull rope (602) is fixedly connected to the other end. A winding wheel (603) is rotatably connected to one end of the tube body (600) near the stamping bracket (2). The pull rope (602) is wound around the outside of the winding wheel (603). A winding gear (604) is fixedly connected to one end of the winding wheel (603) away from the tube body (600). A connecting valve (605) is rotatably connected to the middle of the winding gear (604). An air inlet valve is also provided on the outer wall of the tube body (600). The connecting valve (605) is fixedly connected to the first air guide tube (115).

6. The mold for preparing molybdenum-rhenium alloy tubing according to claim 5, characterized in that, The winding gear (604) is externally meshed with a power gear (608), which is rotatably connected to the mounting base (1). A connecting rod (607) is also fixedly connected to the output shaft of the press (3). A power rack (606) is vertically fixedly connected to one end of the connecting rod (607) away from the output shaft of the press (3). The power rack (606) meshes with the power gear (608).

7. The mold for preparing molybdenum-rhenium alloy tubing according to claim 1, characterized in that, The vibrating core (9) includes a vibrating tube (900). A sliding rod (901) is slidably connected inside the vibrating tube (900). Several sets of fixed discs (903) are slidably connected on the rod wall of the sliding rod (901). Each set of fixed discs (903) consists of two discs, and the two fixed discs (903) are symmetrically distributed vertically. A support ring (902) is fixedly connected to the side wall of the fixed disc (903) by a connecting rod. The support ring (902) is fixedly connected to the vibrating tube (900).

8. The mold for preparing molybdenum-rhenium alloy tubing according to claim 7, characterized in that, The upper sliding sleeve (904) and the lower sliding sleeve (906) are fixedly connected to the rod wall of the slide rod (901) at the ends of the two fixed discs (903) that are far apart from each other. Several vibration petals (905) are fixedly connected to the outer walls of the upper sliding sleeve (904) and the lower sliding sleeve (906). A power sleeve (907) is also fixedly connected to the rod wall of the slide rod (901).

9. The mold for preparing molybdenum-rhenium alloy tubing according to claim 1, characterized in that, The power cylinder (10) includes a gas shell (110), and a plurality of pressure relief ports are provided on the outer wall of the gas shell (110). A spiral power plate (111) is rotatably connected inside the gas shell (110). The end of the first air guide pipe (115) away from the power cylinder (10) is fixedly connected to the bottom end of the gas shell (110). A baffle plate (112) is fixedly connected to the upper end of the spiral power plate (111). An exhaust window (113) is provided on the wall of the baffle plate (112). A guide port (114) is provided between the gas shell (110) and the vibration pipe (900). The inner diameter of the pressure relief port is smaller than the inner diameter of the guide port (114). The baffle plate (112) slides against the inner top wall of the gas shell (110). An exhaust valve is also provided on the outer wall of the gas shell (110). The exhaust valve is connected to the metal pipe at the air inlet end of the recovery pipe (7).

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