A forming and processing die for seamless square tubes made of stainless steel nickel alloy used in nuclear power, semiconductors, military, and aerospace

Abstract

The present invention discloses a forming and processing die for stainless steel nickel alloy seamless square pipes used in nuclear power, semiconductors, military, and aerospace, which relates to the technical field of seamless square pipe processing. It includes a die box, a preheating chamber, and a cooling chamber. A cylinder is fixedly installed on the inner top wall of the die box, and the bottom end of the cylinder is fixedly connected to a movable control box. Moreover, an upper roll rolling mechanism is arranged at the bottom of the movable control box. The inner bottom wall of the die box is fixedly connected to a fixed control box, and a lower roll rolling mechanism is arranged at the top of the fixed control box. For this forming and processing die for stainless steel nickel alloy seamless square pipes used in nuclear power, semiconductors, military, and aerospace, the servo motor drives the heating roll assembly and the roll die to rotate. In cooperation with the heating roll assembly continuously conducting heat to the roll die, when the round pipe passes through between the two roll dies, the round pipe can be rolled and deformed into a square pipe. This die is simple to operate and can easily realize the rolling of seamless square pipes, especially suitable for the production and preparation of stainless steel nickel alloy seamless square pipes.

Description

Technical Field

[0001] The present invention relates to the technical field of seamless square pipe processing, and specifically relates to a forming and processing die for stainless steel nickel alloy seamless square pipes used in nuclear power, semiconductors, military, and aerospace industries. Background Technique

[0002] The stainless steel nickel alloy seamless square pipe is a metal product, and its material is mainly composed of stainless steel and nickel alloy, so it has excellent corrosion resistance and wear resistance. The characteristic of the seamless square pipe is that its cross-section is square and there is no seam around it, which gives it higher structural strength and better fluid transmission performance. Since the stainless steel nickel alloy seamless square pipe combines the corrosion resistance of stainless steel and the high strength and high temperature resistance of nickel alloy, it has excellent performance in various applications, and thus is widely used in fields such as nuclear power, semiconductors, military, and aerospace.

[0003] In the prior art, the forming methods of stainless steel nickel alloy seamless square pipes generally adopt hot extrusion or cold drawing processes. Hot extrusion is to heat the tube blank to a high temperature and then extrude the tube blank into a seamless pipe through an extruder. This method is suitable for manufacturing large-diameter and thick-wall seamless pipes, and has high production efficiency. Cold drawing is to draw the tube blank through a die at room temperature into a seamless pipe, which is suitable for manufacturing small-diameter and thin-wall seamless pipes. Although the production efficiency is relatively low, the surface of the finished product is smooth and the dimensional accuracy is high. However, these two processes only have good forming effects within their applicable diameter and wall thickness ranges, and the applicability is poor, unable to meet various production requirements. Once the square pipe model changes, there may be a large difference in its diameter and wall thickness, and it is necessary to replace the equipment and process to carry out forming processing. Summary of the Invention

[0004] The purpose of the present invention is to provide a forming and processing die for stainless steel nickel alloy seamless square pipes used in nuclear power, semiconductors, military, and aerospace industries, so as to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A forming and processing die for stainless steel nickel alloy seamless square pipes used in nuclear power, semiconductors, military, and aerospace industries, including a die box, a preheating chamber, and a cooling chamber. A cylinder is fixedly installed on the inner top wall of the die box, and the bottom end of the cylinder is fixedly connected to a movable control box, and an upper roll rolling mechanism is arranged at the bottom of the movable control box. A fixed control box is fixedly connected to the inner bottom wall of the die box, and a lower roll rolling mechanism is arranged at the top of the fixed control box. The preheating chamber is fixed on the left outer wall of the die box, and a heating wire is fixedly installed on the inner wall of the preheating chamber, and an inlet pipe is opened on the left side wall of the preheating chamber. The cooling chamber is fixed on the right outer wall of the die box, an outlet pipe is opened on the right side wall of the cooling chamber, and an air cooling mechanism is connected to the outer wall of the cooling chamber.

[0006] Further, the movable control box includes a box shell, a guide groove, a driving motor, and a bidirectional lead screw. A guide groove is provided at the bottom of the box shell, and a driving motor is fixedly installed inside the box shell. The output shaft of the driving motor is fixedly connected to the bidirectional lead screw through a coupling, and one end of the bidirectional lead screw is movably connected to the inner wall of the box shell through a bearing.

[0007] Further, the movable control box further includes a moving block. The moving block and the bidirectional lead screw form a penetrating structure, and the inner wall of the moving block is threadedly connected to the outer wall of the bidirectional lead screw.

[0008] Further, the upper roll rolling mechanism includes a left frame body and a right frame body. The left frame body is fixedly connected to the bottom of a moving block, and the right frame body is fixedly connected to the bottom of another moving block.

[0009] Further, the upper roll rolling mechanism further includes a servo motor, a heating roll assembly, and a roll die. The servo motor is fixedly installed inside the left frame body, and the output shaft of the servo motor is fixedly connected to the heating roll assembly through a coupling. One end of the heating roll assembly is movably connected to the inner surface of the right frame body through a bearing. A roll die is sleeved on the heating roll assembly.

[0010] Further, the heating roll assembly includes a left heating roll and a left limiting member. One end of the left heating roll is connected to the servo motor, a square groove is provided at the other end of the left heating roll, and a left limiting member is welded to the outer wall of the left heating roll.

[0011] Further, the heating roll assembly further includes a right heating roll, a right limiting member, and a square insertion rod. One end of the right heating roll is connected to the right frame body, a right limiting member is welded to the outer wall of the right heating roll, and a square insertion rod is fixedly connected to the other end of the right heating roll.

[0012] Further, the right heating roll and the square insertion rod form an integrated structure, and the right heating roll and the left heating roll form a plug-in structure through the square insertion rod and the square groove. The outer surface of the square insertion rod is completely attached to the inner surface of the square groove, and the shape and size of the square insertion rod and the shape and size of the square groove are all mutually matched.

[0013] Further, the air cooling mechanism includes an air pump, an air extraction pipe, and a return air pipe. The air pump is installed on the top of the cooling chamber, the air inlet of the air pump is fixedly connected to the air extraction pipe, and the bottom end of the air extraction pipe is connected to the top of the cooling chamber in a penetrating manner. The air outlet of the air pump is fixedly connected to the return air pipe.

[0014] Furthermore, the air-cooling mechanism further includes a refrigeration water tank and an air outlet pipe. The refrigeration water tank is installed at the bottom of the cooling bin, and one end of the outer wall of the refrigeration water tank is connected to the return air pipe in a penetrating manner. The top of the refrigeration water tank is fixedly connected to the air outlet pipe, and the top end of the air outlet pipe penetrates the bottom of the cooling bin and extends into the interior of the cooling bin.

[0015] The present invention provides a forming and processing die for stainless steel nickel alloy seamless square pipes used in nuclear power, semiconductors, military, and aerospace, having the following beneficial effects:

[0016] 1. The present invention is provided with an upper roll rolling mechanism and a lower roll rolling mechanism. The servo motor drives the heating roll assembly and the roll die to rotate. By continuously conducting heat to the roll die by the heating roll assembly, when the round pipe passes between the two roll dies, the round pipe can be rolled and deformed into a square pipe. This die is simple to operate and can easily realize the rolling of seamless square pipes, especially suitable for the production and preparation of stainless steel nickel alloy seamless square pipes.

[0017] 2. The present invention is provided with a movable control box. The driving motor drives the bidirectional lead screw to rotate, so as to drive the two moving blocks to move towards or away from each other, thereby driving the left frame body and the right frame body to move towards or away from each other, realizing the rapid disassembly and splicing of the left heating roll and the right heating roll, so as to quickly replace the roll die. Similarly, the roll die of the lower roll rolling mechanism can be controlled by the fixed control box to be replaced, and the lifting of the upper roll rolling mechanism is controlled by the cylinder to adjust the distance between the upper roll rolling mechanism and the lower roll rolling mechanism. This processing die has precise size control and adjustment functions, thereby enhancing the adaptability of the die and being able to adapt to the processing of seamless square pipes of various models.

[0018] 3. The present invention is provided with a preheating bin. The heating wire on the inner wall of the preheating bin is used to heat up and preheat the pipe to be processed, so as to avoid the subsequent sudden heat of the heating roll rolling, which helps to improve the finished product quality of the square pipe. And a cooling bin and an air-cooling mechanism are provided. The formed square pipe is cooled by air-cooling circulation, so that the formed square pipe is not easily deformed, so as to continuously carry out production work, and at the same time avoid the risk of high-temperature scalding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic external view of a forming and processing die for stainless steel nickel alloy seamless square pipes used in nuclear power, semiconductors, military, and aerospace according to the present invention;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the cooling bin of a forming and processing die for stainless steel nickel alloy seamless square pipes used in nuclear power, semiconductors, military, and aerospace according to the present invention;

[0021] Figure 3 It is a schematic diagram of the structure splitting of the die box - cooling bin of a forming and processing die for stainless steel nickel alloy seamless square pipes used in nuclear power, semiconductors, military, and aerospace according to the present invention;

[0022] Figure 4 Schematic structural connection diagram of the upper roll rolling mechanism - lower roll rolling mechanism of a stainless steel nickel alloy seamless square tube forming and processing die for nuclear power, semiconductors, military, and aerospace applications of the present invention;

[0023] Figure 5 Schematic cross-sectional structural diagram of the casing of a stainless steel nickel alloy seamless square tube forming and processing die for nuclear power, semiconductors, military, and aerospace applications of the present invention;

[0024] Figure 6 Schematic structural connection diagram of the left heating roll - right heating roll of a stainless steel nickel alloy seamless square tube forming and processing die for nuclear power, semiconductors, military, and aerospace applications of the present invention.

[0025] In the figure: 1. Mold box; 2. Cylinder; 3. Movable control box; 301. Casing; 302. Guide groove; 303. Driving motor; 304. Bi-directional lead screw; 305. Moving block; 4. Upper roll rolling mechanism; 401. Left frame body; 402. Right frame body; 403. Servo motor; 404. Heating roll assembly; 4041. Left heating roll; 4042. Left limit member; 4043. Right heating roll; 4044. Right limit member; 4045. Square insertion rod; 405. Roll die; 5. Fixed control box; 6. Lower roll rolling mechanism; 7. Preheating chamber; 8. Inlet pipe; 9. Cooling chamber; 10. Outlet pipe; 11. Air cooling mechanism; 1101. Air pump; 1102. Exhaust pipe; 1103. Return air pipe; 1104. Refrigeration water tank; 1105. Outlet air pipe. Detailed implementation manners

[0026] The following further describes in detail the implementation manners of the present invention with reference to the accompanying drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0027] Such as Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 6As shown in the figure, a forming and processing die for a stainless steel nickel alloy seamless square pipe used in nuclear power, semiconductors, military, and aerospace includes a die box 1, a preheating chamber 7, and a cooling chamber 9. A cylinder 2 is fixedly installed on the inner top wall of the die box 1, and the bottom end of the cylinder 2 is fixedly connected to a movable control box 3. The movable control box 3 includes a box shell 301, a guide groove 302, a drive motor 303, and a bidirectional lead screw 304. A guide groove 302 is opened at the bottom of the box shell 301, and a drive motor 303 is fixedly installed inside the box shell 301. The output shaft of the drive motor 303 is fixedly connected to the bidirectional lead screw 304 through a coupling, and one end of the bidirectional lead screw 304 is movably connected to the inner wall of the box shell 301 through a bearing. The movable control box 3 further includes a moving block 305. The moving block 305 and the bidirectional lead screw 304 form a penetrating structure, and the inner wall of the moving block 305 is threadedly connected to the outer wall of the bidirectional lead screw 304. A top roll rolling mechanism 4 is arranged at the bottom of the movable control box 3. The top roll rolling mechanism 4 includes a left frame body 401 and a right frame body 402. The left frame body 401 is fixedly connected to the bottom of one moving block 305, and the right frame body 402 is fixedly connected to the bottom of the other moving block 305. The top roll rolling mechanism 4 further includes a servo motor 403, a heating roll assembly 404, and a roll die 405. The servo motor 403 is fixedly installed inside the left frame body 401, and the output shaft of the servo motor 403 is fixedly connected to the heating roll assembly 404 through a coupling. One end of the heating roll assembly 404 is movably connected to the inner surface of the right frame body 402 through a bearing. A roll die 405 is sleeved on the heating roll assembly 404. The heating roll assembly 404 includes a left heating roll 4041 and a left limiting member 4042. One end of the left heating roll 4041 is connected to the servo motor 403, and a square groove is opened at the other end of the left heating roll 4041. A left limiting member 4042 is welded to the outer wall of the left heating roll 4041. The heating roll assembly 404 further includes a right heating roll 4043, a right limiting member 4044, and a square insertion rod 4045. One end of the right heating roll 4043 is connected to the right frame body 402, and a right limiting member 4044 is welded to the outer wall of the right heating roll 4043. The other end of the right heating roll 4043 is fixedly connected to the square insertion rod 4045. The right heating roll 4043 and the square insertion rod 4045 form an integral structure, and the right heating roll 4043 and the left heating roll 4041 form a plug-in structure through the square insertion rod 4045 and the square groove. The outer surface of the square insertion rod 4045 is completely attached to the inner surface of the square groove, and the shape and size of the square insertion rod 4045 and the shape and size of the square groove are all mutually matched. The inner bottom wall of the die box 1 is fixedly connected to a fixed control box 5, and a bottom roll rolling mechanism 6 is arranged on the top of the fixed control box 5.

[0028] The specific operation is as follows. The operator starts the upper roll rolling mechanism 4 and the lower roll rolling mechanism 6. The servo motor 403 of the upper roll rolling mechanism 4 will drive the heating roll assembly 404 to rotate, thereby driving the roll die 405 to rotate. During this process, the heating roll assembly 404 continuously heats and transfers heat to the roll die 405. The operation of the lower roll rolling mechanism 6 is the same as that of the upper roll rolling mechanism 4. The round tube passes through between the upper roll rolling mechanism 4 and the lower roll rolling mechanism 6 under the guidance of the traction device, specifically through between the two roll dies 405, and is rolled from a round tube into a square tube. This die is easy to operate and can easily achieve the rolling of seamless square tubes, especially suitable for the production and preparation of stainless steel nickel alloy seamless square tubes. At the same time, the die is also provided with a movable control box 3. By driving the bidirectional lead screw 304 to rotate through the drive motor 303, and cooperating with the restriction of the movement track of the moving block 305 by the inner wall of the box shell 301, the two moving blocks 305 can move towards or away from each other under the rotational drive of the bidirectional lead screw 304, thereby driving the left frame body 401 and the right frame body 402 to move towards or away from each other. When it is necessary to replace the roll die 405, first release the connection effect between the left limit piece 4042 and the right limit piece 4044 and the roll die 405, that is, screw out the bolts for fixing, and then control the left frame body 401 and the right frame body 402 to move away from each other through the drive motor 303, so that the square plug rod 4045 of the right heating roll 4043 is withdrawn from the square groove of the left heating roll 4041, so that the roll die 405 is separated from the heating roll assembly 404. Then install a new heating roll assembly 404, use the drive motor 303 to control the left frame body 401 and the right frame body 402 to move towards each other, insert the square plug rod 4045 into the square groove, so that the right heating roll 4043 is docked with the left heating roll 4041 until the left limit piece 4042 and the right limit piece 4044 respectively abut against both sides of the roll die 405, and the motor stops moving. Then use bolts to fixedly connect the left limit piece 4042 and the right limit piece 4044 with both sides of the roll die 405 respectively. Similarly, the lower roll rolling mechanism 6 can be disassembled and replaced. Cooperating with the cylinder 2 to control the lifting of the upper roll rolling mechanism 4, the distance between the upper roll rolling mechanism 4 and the lower roll rolling mechanism 6 can be adjusted. Through the combined use of the above structures, the forming die has accurate dimension control and adjustment functions, thereby enhancing the adaptability of the die and being able to adapt to the processing of seamless square tubes of various models.

[0029] As Figures 1-3As shown in the figure, the preheating chamber 7 is fixed on the left outer wall of the mold box 1, and a heating wire is fixedly installed on the inner wall of the preheating chamber 7. An inlet pipe opening 8 is provided on the left side wall of the preheating chamber 7. The cooling chamber 9 is fixed on the right outer wall of the mold box 1. An outlet pipe opening 10 is provided on the right side wall of the cooling chamber 9. An air cooling mechanism 11 is connected to the outer wall of the cooling chamber 9. The air cooling mechanism 11 includes an air pump 1101, an air suction pipe 1102, and a return air pipe 1103. The air pump 1101 is installed on the top of the cooling chamber 9, and the air inlet of the air pump 1101 is fixedly connected to the air suction pipe 1102. The bottom end of the air suction pipe 1102 is connected to the top of the cooling chamber 9 in a penetrating manner. The air outlet of the air pump 1101 is fixedly connected to the return air pipe 1103. The air cooling mechanism 11 further includes a refrigeration water tank 1104 and an air outlet pipe 1105. The refrigeration water tank 1104 is installed at the bottom of the cooling chamber 9, and the outer wall of the refrigeration water tank 1104 is connected to one end of the return air pipe 1103 in a penetrating manner. The top of the refrigeration water tank 1104 is fixedly connected to the air outlet pipe 1105, and the top end of the air outlet pipe 1105 penetrates the bottom of the cooling chamber 9 and extends into the cooling chamber 9.

[0030] The specific operation is as follows. Before the round tube enters the mold box 1, it will first enter the preheating chamber 7 through the inlet pipe opening 8, and the heating wire on the inner wall of the preheating chamber 7 will heat it up for preheating to avoid sudden heating during subsequent hot rolling, which helps to improve the finished product quality of the square tube. After rolling, the square tube will enter the cooling chamber 9 for cooling. During this process, the air cooling mechanism 11 operates continuously. The air pump 1101 sucks out the air in the cooling chamber 9 through the air suction pipe 1102 and sends it into the refrigeration water tank 1104 through the return air pipe 1103. The air enters the water, and the water cools it down, and then it is discharged through the air outlet pipe 1105 and re-enters the cooling chamber 9 to form an air cooling cycle. Since the refrigeration water tank 1104 can always cool the water in the tank, the water in the refrigeration water tank 1104 can always maintain a low temperature state and continuously cool the newly entered air, which helps to maintain a good cooling effect, so it is suitable for continuous production work. Through cooling, the formed square tube is not prone to deformation, and at the same time, the risk of high-temperature scalding is avoided. Finally, the finished square tube is output from the outlet pipe opening 10.

[0031] In summary, combined with Figures 1-6As shown in the figure, the working principle of the stainless steel nickel alloy seamless square tube forming and processing die for nuclear power, semiconductors, military industry, and aerospace is as follows: First, the round tube enters the preheating chamber 7 through the inlet pipe 8, and the heating wire on the inner wall of the preheating chamber 7 heats it up for preheating. Then, the round tube enters the die box 1. The upper roll rolling mechanism 4 and the lower roll rolling mechanism 6 in the die box 1 are started simultaneously. The servo motor 403 drives the heating roll assembly 404 to rotate, thereby driving the roll die 405 to rotate. During this process, the heating roll assembly 404 continuously heats and transfers the heat to the roll die 405. The operation of the lower roll rolling mechanism 6 is the same as that of the upper roll rolling mechanism 4. The round tube passes through between the two roll dies 405, is rolled from a round tube into a square tube, and after rolling, enters the cooling chamber 9 for cooling. During the cooling process, the air pump 1101 extracts the air in the cooling chamber 9 through the suction pipe 1102 and sends it into the refrigeration water tank 1104 through the return pipe 1103. The air enters the water, is cooled by the water, and then is discharged through the outlet pipe 1105 and re-enters the cooling chamber 9 to form an air cooling cycle. At the same time, the refrigeration water tank 1104 continuously cools the water in the tank. Finally, the finished square tube is output from the outlet pipe 10.

[0032] According to production needs, the user can also replace the roll die 405. First, release the connection effect between the left limit piece 4042 and the right limit piece 4044 and the roll die 405, and then control the left frame body 401 and the right frame body 402 to move away from each other through the driving motor 303, so that the square insertion rod 4045 of the right heating roll 4043 is pulled out from the square groove of the left heating roll 4041. After removing the roll die 405, install a new heating roll assembly 404, use the driving motor 303 to control the left frame body 401 and the right frame body 402 to move towards each other, insert the square insertion rod 4045 back into the square groove, so that the right heating roll 4043 is docked with the left heating roll 4041 until the left limit piece 4042 and the right limit piece 4044 respectively abut against both sides of the roll die 405, and the motor stops moving. Then, use bolts to fixedly connect the left limit piece 4042 and the right limit piece 4044 to both sides of the roll die 405 respectively. Similarly, the lower roll rolling mechanism 6 can be disassembled, assembled, and replaced. Cooperate with the cylinder 2 to control the lifting of the upper roll rolling mechanism 4, and reasonably adjust the distance between the upper roll rolling mechanism 4 and the lower roll rolling mechanism 6, and the replacement work of the roll die 405 can be completed.

[0033] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes.

Claims

1. A stainless steel nickel alloy seamless square tube forming and processing die for nuclear power semiconductor military aerospace, comprising a die box (1), a preheating chamber (7) and a cooling chamber (9), characterized in that: The inner top wall of the mold box (1) is fixedly mounted with a cylinder (2), and the bottom end of the cylinder (2) is fixedly connected to a movable control box (3), and the bottom of the movable control box (3) is provided with an upper rolling mechanism (4), the inner bottom wall of the mold box (1) is fixedly connected to a fixed control box (5), and the top of the fixed control box (5) is provided with a lower rolling mechanism (6), the preheating chamber (7) is fixed to the left outer wall of the mold box (1), and a heating wire is fixedly mounted on the inner wall of the preheating chamber (7), and a pipe inlet (8) is provided on the left wall of the preheating chamber (7), and the cooling chamber (9) is fixedly mounted with a heating wire. An outlet (10) is provided on the right outer wall of the mold box (1) and the right outer wall of the cooling bin (9). The outer wall of the cooling bin (9) is connected to an air cooling mechanism (11). The upper rolling mechanism (4) comprises a left frame (401) and a right frame (402). The left frame (401) is fixedly connected to the bottom of a moving block (305). The right frame (402) is fixedly connected to the bottom of another moving block (305). The upper rolling mechanism (4) also comprises a servo motor (403), a heating roller assembly (404) and a roller mold (405). The servo motor (403) is fixedly installed on the inner side of the left frame (401), and the output shaft of the servo motor (403) is fixedly connected to the heating roller assembly (404) through a coupling, and one end of the heating roller assembly (404) is movably connected to the inner surface of the right frame (402) through a bearing, and a roller mold (405) is sleeved on the heating roller assembly (404). The heating roller assembly (404) includes a left heating roller (4041) and a left limiter (4042), and one end of the left heating roller (4041) is connected to the servo motor (403), and the left heating roller (4041) The other end of the left heating roller (4041) is provided with a square groove, and the outer wall of the left heating roller (4041) is welded with a left limit piece (4042), the heating roller assembly (404) further comprises a right heating roller (4043), a right limit piece (4044) and a square plug rod (4045), one end of the right heating roller (4043) is connected to the right frame (402), and the outer wall of the right heating roller (4043) is welded with a right limit piece (4044), and the other end of the right heating roller (4043) is fixedly connected with a square plug rod (4045) that matches the square groove in the left heating roller (4041).

2. The stainless steel nickel alloy seamless square tube forming and processing die for nuclear power semiconductor military aerospace according to claim 1 is characterized in that: The movable control box (3) comprises a box shell (301), a guide groove (302), a drive motor (303) and a bidirectional screw rod (304); the guide groove (302) is provided at the bottom of the box shell (301), and the drive motor (303) is fixedly installed inside the box shell (301); the output shaft of the drive motor (303) is fixedly connected to the bidirectional screw rod (304) via a coupling, and one end of the bidirectional screw rod (304) is movably connected to the inner wall of the box shell (301) via a bearing.

3. The stainless steel nickel alloy seamless square tube forming and processing die for nuclear power semiconductor military aerospace according to claim 2 is characterized in that: The movable control box (3) further comprises a moving block (305), wherein the moving block (305) and the bidirectional screw rod (304) form a through structure, and the inner wall of the moving block (305) is threadedly connected to the outer wall of the bidirectional screw rod (304).

4. The stainless steel nickel alloy seamless square tube forming and processing die for nuclear power semiconductor military aerospace according to claim 3 is characterized in that: The right heating roller (4043) and the square plug rod (4045) form an integrated structure, and the right heating roller (4043) forms a plug-in structure with the left heating roller (4041) via the square plug rod (4045) and the square groove, the outer surface of the square plug rod (4045) is completely fitted with the inner surface of the square groove, and the shape and size of the square plug rod (4045) and the shape and size of the square groove match each other.

5. The stainless steel nickel alloy seamless square tube forming die for nuclear power semiconductor military aerospace according to claim 4, characterized in that: The air cooling mechanism (11) comprises an air pump (1101), an air extraction pipe (1102) and an air return pipe (1103); the air pump (1101) is installed on the top of the cooling bin (9); the air inlet of the air pump (1101) is fixedly connected to the air extraction pipe (1102); the bottom end of the air extraction pipe (1102) is through-connected to the top of the cooling bin (9); the air outlet of the air pump (1101) is fixedly connected to the air return pipe (1103).

6. The stainless steel nickel alloy seamless square tube forming and processing die for nuclear power semiconductor military aerospace according to claim 5, characterized in that: The air cooling mechanism (11) further comprises a refrigeration water tank (1104) and an air outlet pipe (1105); the refrigeration water tank (1104) is installed at the bottom of the cooling bin (9), and the outer wall of the refrigeration water tank (1104) is connected to one end of the return air pipe (1103); the top of the refrigeration water tank (1104) is fixedly connected to the air outlet pipe (1105), and the top end of the air outlet pipe (1105) passes through the bottom of the cooling bin (9) and extends to the interior of the cooling bin (9).

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