Production process and production device of high-strength corrosion-resistant wear-resistant stainless steel pipe for bullet train

Abstract

The application discloses a production process and a production device of high-strength corrosion-resistant wear-resistant stainless steel pipe for bullet train, and relates to the field of stainless steel pipe production.The production process comprises the following steps: material preparation, cutting and straightening, cleaning and pickling, heat treatment, surface treatment, quality inspection, packaging and transportation.The production equipment used in the cleaning and pickling step comprises a soaking box, a circulating mechanism, supporting legs, a top plate, a gas cylinder and a clamping mechanism, the circulating mechanism is fixed in the soaking box, the top plate is fixed on the upper end of the supporting legs and connected with the gas cylinder, and the clamping mechanism is fixed on the output end of the gas cylinder.The clamping device comprises a lifting plate, a second motor, a lead screw, a positioning frame and a pushing frame.The soaking box, the circulating mechanism, the lead screw, the positioning frame and the pushing frame are arranged, so that the problem that multiple devices need to be used to complete the cleaning and pickling and the cleaning effect is poor in the existing production device of stainless steel pipe is solved, and floating materials are generated during pickling, which affects the pickling effect.

Description

Technical Field

[0001] This invention relates to the field of high-strength, corrosion-resistant, and wear-resistant stainless steel pipe production for high-speed trains, specifically a production process and equipment for high-strength, corrosion-resistant, and wear-resistant stainless steel pipe production for high-speed trains. Background Technology

[0002] With the development of technology and the increasing popularity of transportation, high-speed trains play an important role in people's travel. In order to improve the operating efficiency and safety of high-speed trains, various new materials and production processes are widely used in the manufacturing of high-speed trains. Among them, stainless steel pipes are used extensively in the water supply, hot water, drainage, and air conditioning systems of high-speed trains. These stainless steel pipes need to meet the requirements of high strength, corrosion resistance, and wear resistance to ensure the stability and safety of high-speed trains during long-term operation. In addition to the above-mentioned locations where high-strength, corrosion-resistant, and wear-resistant stainless steel pipes are needed, these stainless steel pipes are also widely used in other aspects. For example, stainless steel pipes are also needed in the manufacturing of high-speed train seats, the internal structure of the carriages, and some key components. These stainless steel pipes not only need to meet the basic requirements of strength and corrosion resistance, but also need to have a certain degree of wear resistance and aesthetics.

[0003] In the production process of high-strength, corrosion-resistant, and wear-resistant stainless steel pipes for high-speed trains, cleaning and pickling are two important steps. The cleaning step is to remove impurities and oil stains from the surface of the stainless steel pipe to ensure its cleanliness, while the pickling step is to further enhance the corrosion resistance and wear resistance of the steel pipe.

[0004] The purpose of this invention is to provide a production process and apparatus for high-strength, corrosion-resistant, and wear-resistant stainless steel pipes used in high-speed trains. This addresses the shortcomings of existing stainless steel pipe production equipment, which requires multiple transfers between cleaning and pickling equipment, resulting in low efficiency. Furthermore, untimely cleaning can lead to corrosion from the pickling solution, and the cleaning effect is poor. Additionally, during pickling, impurities and oil float on the pickling solution, affecting the pickling effect. Manual removal of these substances can cause skin corrosion for workers. Therefore, it is essential to invent a production process and equipment for high-strength, corrosion-resistant, and wear-resistant stainless steel pipes used in high-speed trains. Summary of the Invention

[0005] The purpose of this invention is to provide a production process and apparatus for high-strength, corrosion-resistant, and wear-resistant stainless steel pipes used in high-speed trains. This addresses the shortcomings of existing production processes and apparatuses, which require multiple transfers of stainless steel pipes between cleaning and pickling equipment, resulting in low efficiency. Furthermore, untimely cleaning can lead to corrosion from the pickling solution, and the cleaning effect is poor. Additionally, during pickling, impurities and oil float on the pickling solution, affecting the pickling effect. Manual removal of these substances can cause skin corrosion for workers.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a production process for high-strength, corrosion-resistant, and wear-resistant stainless steel pipes for high-speed trains, comprising the following steps: Step 1: Material preparation. Select high-strength, corrosion-resistant stainless steel to ensure that the quality and purity of the materials meet the standards. The second step is cutting and straightening. The stainless steel material is cut to the required length with a dimensional accuracy of ±0.5mm, and then straightened to ensure the straightness and surface quality of the pipe. The third step is cleaning and pickling. The pipes are cleaned to remove surface oil, impurities, etc., and then pickled to remove the oxide layer and increase the corrosion resistance of the pipes. Step 4: Heat treatment. The tube blank is heated to a high temperature of 1000-1100℃ to heat treat the tube and adjust its mechanical properties and corrosion resistance. Step 5: Surface treatment. The pipe is treated with methods such as sandblasting, shot blasting, and electroplating. Sandblasting can remove oxides and impurities from the surface and improve wear resistance, while polishing can improve the surface smoothness and enhance corrosion resistance. Step 6: Quality inspection. The produced stainless steel pipes are inspected for quality, including dimensions, appearance, and mechanical properties. The dimensional accuracy requirement is ±0.2mm to ensure that the products meet relevant standards and customer requirements. Step 7: Packaging and Transportation. Pack the qualified stainless steel pipes using moisture-proof and shock-proof materials to prevent damage during transportation.

[0007] Furthermore, the production equipment used in the cleaning and pickling steps of the production process for high-strength, corrosion-resistant, and wear-resistant stainless steel pipes for high-speed trains includes an immersion tank, a circulation mechanism, support legs, a top plate, cylinders, and a clamping mechanism. The immersion tank is fixed to the ground with bolts, and a circulation mechanism is fixed inside the immersion tank. Four support legs are provided on the outside of the immersion tank, and the upper ends of the four support legs are fixed to the top plate with bolts. Several cylinders are fixed to the upper side of the top plate with bolts, wherein the output end of the cylinder slides through the top plate, and the output end of the cylinder is fixed to the clamping mechanism with bolts. The outer edge of the clamping mechanism is slidably connected to the support legs. The immersion tank includes a tank body, a cleaning chamber, an pickling chamber, a partition, a filter screen, a traction rope, a winding shaft, and a slag collection rack. The container is bolted to the ground and has a cleaning chamber and an acid pickling chamber inside. A partition is installed between the cleaning chamber and the acid pickling chamber, and the outer edge of the partition is fixed to the inner wall of the container by welding. A circulation mechanism is fixed inside the cleaning chamber. A filter screen with an "L" shape is rotatably installed inside the acid pickling chamber via a support bearing, and a traction rope is tied to the other end of the filter screen. The other end of the traction rope is fixed and wound on the outer side of a winding shaft. The outer sides of both ends of the winding shaft are rotatably connected to two of the support legs via support bearings. One end of the winding shaft is connected to the output end of a first motor, which is fixed to the outer side of one of the support legs by bolts. A slag collection frame is fixed to one end of the container by welding.

[0008] Furthermore, the circulation mechanism includes a water pump, an inlet pipe, a delivery pipe, and nozzles. The water pump is fixed to the ground with bolts. The inlet pipe is fixed to the input end of the water pump via a connector, and the other end of the inlet pipe is fixed to the housing via a connector, and the inlet pipe communicates with the inside of the cleaning chamber. The delivery pipe is fixed to the output end of the water pump via a connector, and the delivery pipe is fixed to the inside of the cleaning chamber by a clip. Several nozzles are fixed to the middle of the delivery pipe via a T-joint, and the output ends of the nozzles are all arranged upwards. This arrangement can improve the flowability of the cleaning fluid.

[0009] Furthermore, the clamping mechanism includes a lifting plate, a second motor, a lead screw, a positioning frame, and a pushing frame. The upper side of the lifting plate is fixed to the output end of the cylinder by bolts, and the outer edge of the lifting plate is slidably connected to the support leg. Two positioning frames are fixed to the lower side of the lifting plate by bolts, wherein a lead screw is rotatably mounted on one side of the positioning frame via a support bearing. The other end of the lead screw is fixed to the output end of the second motor, and the lead screw passes through the pushing frame via thread engagement. The upper end of the pushing frame is slidably connected to the lower side of the lifting plate. The second motor is fixed to the lifting plate by bolts. This arrangement allows the stainless steel tube to move freely between the pickling chamber and the cleaning chamber.

[0010] Furthermore, the positioning frame includes a fixed block, a first electric push rod, an upper limit plate, a connecting rod, a second electric push rod, and a lower limit plate. The fixed block is welded to the lower side of the lifting plate, and the first electric push rod is bolted inside the fixed block. The output end of the first electric push rod is bolted to a rubber pad. The lower side of the fixed block is welded to a connecting rod, the lower end of which is hinged to the upper side of the upper limit plate. The two ends of the upper limit plate are respectively welded to the second electric push rod, and the output ends of the second electric push rods are bolted to the two ends of the lower limit plate. The lower side of the upper limit plate and the upper side of the lower limit plate are respectively provided with a plurality of clamping grooves, and a plurality of steel balls are rotatably installed inside the clamping grooves through ball joints. This arrangement assists in tilting the stainless steel tube and avoids scratching the stainless steel tube.

[0011] Furthermore, the pusher includes a frame, a third electric push rod, an upper clamp, a folding frame, a fourth electric push rod, and a lower clamp. A lead screw passes through the interior of the frame via a threaded connection, and the third electric push rod is bolted to the upper side of the frame. The output end of the third electric push rod is hinged to the upper side of the upper clamp, and the folding frame is hinged to the upper side of the upper clamp. The upper end of the folding frame is hinged to the lower side of the frame. The upper sides of the upper clamp are bolted to the fourth electric push rod, and the output end of the fourth electric push rod is bolted to the lower clamp. The upper side of the lower clamp and the lower side of the upper clamp are respectively provided with several fixing grooves. This arrangement allows the stainless steel pipe to tilt, facilitating the discharge of cleaning or pickling solution from inside the stainless steel pipe.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The immersion tank of the present invention can store cleaning solution and pickling solution separately. After the pickling of stainless steel pipe is completed, the first motor can drive the winding shaft to wind up the traction rope, thereby driving the filter screen to rotate inside the pickling chamber. During the rotation of the filter screen, it can lift the floating objects on the pickling solution and make them fall onto the slag collection rack.

[0013] 2. The circulation mechanism of this invention allows the cleaning fluid inside the cleaning chamber to enter the inlet pipe during use. Then, under the action of the water pump, the cleaning fluid is transported to the inside of the delivery pipe and finally sprayed upward through the nozzle. This improves the fluidity of the cleaning fluid inside the cleaning chamber, thereby enhancing the cleaning effect on the stainless steel pipe.

[0014] 3. The positioning frame of the present invention allows one end of the stainless steel tube to be placed inside the clamping groove during use. When the height of the other end of the stainless steel tube is adjusted by the push frame, the upper and lower limit plates can rotate around the lower end of the connection as the stainless steel tube tilts. When the stainless steel tube is pushed by the push frame, the output end of the first electric push rod can contact the upper limit plate, thereby preventing displacement of the upper and lower limit plates when the stainless steel tube moves. At the same time, the steel ball setting can prevent the upper and lower limit plates from scratching the stainless steel tube.

[0015] 4. The pusher frame of this invention can fix the other end of the stainless steel tube inside the fixing groove during use. After the stainless steel tube is taken out from the cleaning chamber or pickling chamber, the upper and lower clamps can be moved down by the third electric push rod, so that the folding frame unfolds. This adjusts the height of one end of the stainless steel tube, so that the stainless steel tube is tilted, so that the cleaning liquid or pickling liquid inside the stainless steel tube can flow out. At the same time, the pusher frame can push the stainless steel tube under the action of the screw.

[0016] 5. The lead screw of the present invention can rotate under the drive of the second motor after cleaning or pickling. During the rotation, the lead screw can drive the push frame to approach the positioning frame, thereby pushing the stainless steel tube between another positioning frame and the push frame, so as to facilitate the next pickling or cleaning process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention.

[0018] Figure 2 This is a cross-sectional structural schematic diagram of the soaking tank of the present invention.

[0019] Figure 3 This is a schematic diagram of the circulation mechanism of the present invention.

[0020] Figure 4 This is a schematic diagram of the clamping mechanism of the present invention.

[0021] Figure 5 This is a schematic diagram of the positioning frame of the present invention.

[0022] Figure 6 This is a schematic diagram of the structure of the push frame of the present invention.

[0023] In the picture: 1-Soaking tank, 11-Tank body, 12-Cleaning chamber, 13-Acid washing chamber, 14-Baffle plate, 15-Filter screen, 16-Traction rope, 17-Rewinding shaft, 18-Slag collection rack, 2-Circulation mechanism, 21-Water pump, 22-Inlet pipe, 23-Water supply pipe, 24-Spray nozzle, 3-Support leg, 4-Top plate, 5-Cylinder, 6-Clamping mechanism, 61-Lifting plate, 62-Second motor, 63-Screw screw, 64-Positioning frame, 641-Fixing block, 642-First electric push rod, 643-Upper limit plate, 644-Connecting rod, 645-Second electric push rod, 646-Lower limit plate, 65-Push frame, 651-Frame body, 652-Third electric push rod, 653-Upper clamp, 654-Folding frame, 655-Fourth electric push rod, 656-Lower clamp. Detailed Implementation

[0024] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are also described below. Figure 1-6 As shown: A manufacturing process for high-strength, corrosion-resistant, and wear-resistant stainless steel pipes used in high-speed trains includes the following steps: Step 1: Material preparation. Select high-strength, corrosion-resistant stainless steel to ensure that the quality and purity of the materials meet the standards. The second step is cutting and straightening. The stainless steel material is cut to the required length with a dimensional accuracy of ±0.5mm, and then straightened to ensure the straightness and surface quality of the pipe. The third step is cleaning and pickling. The pipes are cleaned to remove surface oil, impurities, etc., and then pickled to remove the oxide layer and increase the corrosion resistance of the pipes. Step 4: Heat treatment. The tube blank is heated to a high temperature of 1000-1100℃ to heat treat the tube and adjust its mechanical properties and corrosion resistance. Step 5: Surface treatment. The pipe is treated with methods such as sandblasting, shot blasting, and electroplating. Sandblasting can remove oxides and impurities from the surface and improve wear resistance, while polishing can improve the surface smoothness and enhance corrosion resistance. Step 6: Quality inspection. The produced stainless steel pipes are inspected for quality, including dimensions, appearance, and mechanical properties. The dimensional accuracy requirement is ±0.2mm to ensure that the products meet relevant standards and customer requirements. Step 7: Packaging and Transportation. Pack the qualified stainless steel pipes using moisture-proof and shock-proof materials to prevent damage during transportation.

[0025] The production equipment used in the cleaning and pickling steps of the production process for high-strength, corrosion-resistant, and wear-resistant stainless steel pipes for high-speed trains includes an immersion tank 1, a circulation mechanism 2, support legs 3, a top plate 4, cylinders 5, and a clamping mechanism 6. The immersion tank 1 is fixed to the ground with bolts, and the circulation mechanism 2 is fixed inside the immersion tank 1. Four support legs 3 are provided on the outside of the immersion tank 1, and the top plate 4 is fixed to the upper end of the four support legs 3 with bolts. Several cylinders 5 are fixed to the upper side of the top plate 4 with bolts, wherein the output end of the cylinders 5... The cylinder 5 slides through the top plate 4, and the output end of the cylinder 5 is fixed with a clamping mechanism 6 by bolts. The outer edge of the clamping mechanism 6 is slidably connected to the support leg 3. The cylinder 5 is a single-acting cylinder with a diameter greater than 100mm. The soaking tank 1 includes a tank body 11, a cleaning chamber 12, an acid washing chamber 13, a partition 14, a filter screen 15, a traction rope 16, a winding shaft 17, and a slag collection rack 18. The tank body 11 is fixed to the ground by bolts, and the cleaning chamber 12 and the acid washing chamber 13 are respectively opened inside the tank body 11. The tank body 11 uses Made of corrosion-resistant material, the inner wall of the housing 11 is coated with an anti-corrosion coating. A partition 14 is provided between the cleaning chamber 12 and the pickling chamber 13. The outer edge of the partition 14 is fixed to the inner wall of the housing 11 by welding. The cleaning chamber 12 contains clean water, and the pickling chamber 13 contains pickling solution, which is a mixture of dilute nitric acid and dilute sulfuric acid. A circulation mechanism 2 is fixed inside the cleaning chamber 12. A filter screen 15 is rotatably mounted inside the pickling chamber 13 via a support bearing. The filter screen 15 is shaped as follows: The filter screen 15 is L-shaped, and the other end of the filter screen 15 is tied with a traction rope 16, which is a rope made of polyester fiber. The other end of the traction rope 16 is fixed and wound on the outer side of the winding shaft 17. The outer sides of both ends of the winding shaft 17 are rotatably connected to two of the support legs 3 through support bearings. One end of the winding shaft 17 is connected to the output end of the first motor, which is fixed to the outer side of one of the support legs 3 by bolts. A slag collection frame 18 is fixed to one end of the box 11 by welding.

[0026] Specifically, the circulation mechanism 2 includes a water pump 21, an inlet pipe 22, a delivery pipe 23, and a nozzle 24. The water pump 21 is fixed to the ground with bolts. The water pump 21 is a YB350 ceramic pump. The inlet pipe 22 is fixed to the input end of the water pump 21 via a connector. The other end of the inlet pipe 22 is fixed to the housing 11 via a connector, and the inlet pipe 22 communicates with the inside of the cleaning chamber 12. The delivery pipe 23 is fixed to the output end of the water pump 21 via a connector. The delivery pipe 23 is secured to the cleaning chamber by a clip. Inside the cavity 12, and in the middle of the water supply pipe 23, several nozzles 24 are fixed by a T-joint. The output ends of the nozzles 24 are all facing upwards. The nozzles 224 are K-5 nozzles. When in use, the cleaning fluid inside the cleaning cavity 12 can enter the inside of the water inlet pipe 22. Then, under the action of the water pump 21, the cleaning fluid is transported to the inside of the water supply pipe 23. Finally, it is sprayed upwards through the nozzles 24, thereby improving the fluidity of the cleaning fluid inside the cleaning cavity 12 and thus improving the cleaning effect on the stainless steel pipe.

[0027] Specifically, the clamping mechanism 6 includes a lifting plate 61, a second motor 62, a lead screw 63, a positioning frame 64, and a pushing frame 65. The upper side of the lifting plate 61 is fixed to the output end of the cylinder 5 by bolts, and the outer edge of the lifting plate 61 is slidably connected to the support leg 3. Two positioning frames 64 are fixed to the lower side of the lifting plate 61 by bolts. One side of the positioning frame 64 is rotatably mounted with the lead screw 63 via a support bearing. The other end of the lead screw 63 is fixed to the output end of the second motor 62, which is model Y2-160M1-8. The lead screw 63 passes through the pushing frame 65 through thread engagement. The upper end of the pushing frame 65 is connected to the lifting plate 61. 1. The lower side is slidably connected; the second motor 62 is fixed to the lifting plate 61 by bolts. When in use, it can fix the stainless steel pipe between one of the positioning frames 64 and the adjacent push frame 65, and then move down under the action of the cylinder 5, so that the stainless steel pipe is immersed in the cleaning chamber 12 or the pickling chamber 13. After cleaning or pickling is completed, the second motor 62 can drive the lead screw 63 to rotate. During the rotation of the lead screw 63, it can drive the push frame 65 to approach the positioning frame 64, thereby pushing the stainless steel pipe between another positioning frame 64 and the push frame 65, so as to facilitate the next pickling or cleaning process.

[0028] Specifically, the positioning frame 64 includes a fixing block 641, a first electric push rod 642, an upper limit plate 643, a connecting rod 644, a second electric push rod 645, and a lower limit plate 646. The fixing block 641 is welded to the lower side of the lifting plate 61, and the first electric push rod 642 is bolted inside the fixing block 641. The first electric push rod 642 is a trapezoidal screw type electric push rod, and the output end of the first electric push rod 642 is bolted to a rubber pad. The lower side of the fixing block 641 is welded to the connecting rod 644, and the lower end of the connecting rod 644 is hinged to the upper side of the upper limit plate 643. The two ends of the upper limit plate 643 are respectively welded to the second electric push rod 645. The second electric push rod 645 is a trapezoidal screw type electric push rod, and the output end of the second electric push rod 645 is bolted to the connecting rod 646. Bolts are fixed to both ends of the lower limit plate 646; the lower side of the upper limit plate 643 and the upper side of the lower limit plate 646 are respectively provided with several clamping grooves, and several steel balls are installed inside the clamping grooves through ball joints. In use, one end of the stainless steel tube can be placed inside the clamping groove. When the height of the other end of the stainless steel tube is adjusted by the push frame 65, the upper limit plate 643 and the lower limit plate 646 can rotate around the lower end of the connector 644 as the stainless steel tube tilts. When the stainless steel tube is pushed by the push frame 65, the output end of the first electric push rod 642 can contact the upper limit plate 643, thereby preventing the upper limit plate 643 and the lower limit plate 646 from shifting when the stainless steel tube moves. At the same time, the steel balls can prevent the upper limit plate 643 and the lower limit plate 646 from scratching the stainless steel tube.

[0029] Specifically, the pusher 65 includes a frame 651, a third electric push rod 652, an upper clamp 653, a folding frame 654, a fourth electric push rod 655, and a lower clamp 656. A lead screw 63 passes through the interior of the frame 651 via a threaded engagement, and the third electric push rod 652 is bolted to the upper side of the frame 651. The third electric push rod 652 is a trapezoidal lead screw type electric push rod. The output end of the third electric push rod 652 is hinged and rotatably connected to the upper side of the upper clamp 653, and the folding frame 654 is rotatably mounted on the upper side of the upper clamp 653 via a hinge. The upper end of the folding frame 654 is hinged and rotatably connected to the lower side of the frame 651. The upper sides of both ends of the upper clamp 653 are respectively bolted to the fourth electric push rod 655. The output end of the push rod 655 is fixed with a lower clamp 656 by bolts. The fourth electric push rod 655 is a trapezoidal screw electric push rod. The upper side of the lower clamp 656 and the lower side of the upper clamp 653 are respectively provided with several fixing slots. In use, the other end of the stainless steel tube can be fixed in the fixing slot. After the stainless steel tube is taken out from the cleaning chamber 12 or pickling chamber 13, the upper clamp 653 and the lower clamp 656 can be moved down by the third electric push rod 652, so that the folding frame 654 unfolds. This adjusts the height of one end of the stainless steel tube, so that the stainless steel tube is tilted, so that the cleaning liquid or pickling liquid inside the stainless steel tube can flow out. At the same time, the push frame 65 can push the stainless steel tube under the action of the screw 63.

[0030] A production equipment for high-strength, corrosion-resistant, and wear-resistant stainless steel pipes used in high-speed trains, characterized by the following steps: Step 1: Fixing. First, fix the stainless steel pipe between the positioning frame 64 and the pushing frame 65 on the upper side of the cleaning chamber 12.

[0031] The second step, the first cleaning, begins by moving the clamping mechanism 6 downwards via cylinder 5, immersing the stainless steel tube in the cleaning solution. Then, the circulation mechanism 2 increases the fluidity of the cleaning solution. After cleaning, cylinder 5 removes the stainless steel tube from the cleaning chamber 12. Simultaneously, the positioning frame 64 and the pushing frame 65 work together to tilt the stainless steel tube, allowing the cleaning solution inside to flow out.

[0032] The third step is to move the stainless steel pipe for the first time. First, start the second motor 62 on the upper side of the cleaning chamber 12. The second motor 62 drives the lead screw 63 to rotate. During the rotation of the lead screw 63, the push frame 65 on the upper side of the cleaning chamber 12 pushes the stainless steel pipe and pushes the stainless steel pipe between the positioning frame 64 and the push frame 65 on the upper side of the pickling chamber 13.

[0033] The fourth step is pickling. First, the cylinder 5 drives the clamping mechanism 6 to move downward, immersing the stainless steel pipe in the pickling solution. The stainless steel pipe is then pickled by the pickling solution. After pickling, the cylinder 5 again removes the stainless steel pipe from the pickling solution. The positioning frame 64 and the pushing frame 65 work together to tilt the stainless steel pipe, allowing the pickling solution to drain out. The fifth step is the second movement of the stainless steel tube. First, the second motor 62 on the upper side of the pickling chamber 13 is started. The second motor 62 drives the lead screw 63 to rotate. During the rotation of the lead screw 63, the push frame 65 on the upper side of the pickling chamber 13 pushes the stainless steel tube, pushing the stainless steel tube between the positioning frame 64 and the push frame 65 on the upper side of the cleaning chamber 12.

[0034] Step 6, the second cleaning, is the same as step 2, to remove the residual acid from the surface of the stainless steel pipe.

[0035] Step 7: Removal of floating objects. After the stainless steel pipe has been pickled, the first motor can drive the winding shaft 17 to wind up the traction rope 16, thereby causing the filter screen 15 to rotate inside the pickling chamber 13. During the rotation, the filter screen 15 can lift the floating objects on the pickling liquid and make them fall onto the slag collection rack 18.

[0036] All components used in this application are standard parts, and the specific connection methods of each part adopt conventional methods such as bolts and welding that are mature in the prior art. The mechanical parts and electrical equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0037] In summary, this new production process and apparatus for high-strength, corrosion-resistant, and wear-resistant stainless steel pipes for high-speed trains, by incorporating an immersion tank 1, a circulation mechanism 2, a lead screw 63, a positioning frame 64, and a pushing frame 65, solves the problems still present in existing stainless steel pipe production equipment. These problems include the need to transport stainless steel pipes back and forth between cleaning and pickling equipment multiple times, resulting in low efficiency. Furthermore, untimely cleaning can lead to corrosion by the pickling solution, and the cleaning effect on the stainless steel pipes is poor. Additionally, during pickling, impurities and oil stains float on the pickling solution, affecting the pickling effect. Manual removal of these substances can cause skin corrosion to workers.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A production apparatus for high-strength, corrosion-resistant, and wear-resistant stainless steel pipes for high-speed trains, comprising equipment used in the cleaning and pickling steps of the production process of high-strength, corrosion-resistant, and wear-resistant stainless steel pipes for high-speed trains, characterized in that: The device includes a soaking tank (1), a circulation mechanism (2), support legs (3), a top plate (4), cylinders (5), and a clamping mechanism (6). The soaking tank (1) is fixed to the ground, and the circulation mechanism (2) is fixed inside the soaking tank (1). Four support legs (3) are provided on the outside of the soaking tank (1), and the top plate (4) is fixed to the upper end of the four support legs (3). Several cylinders (5) are fixed on the upper side of the top plate (4), wherein the output end of the cylinder (5) slides through the top plate (4), and the output end of the cylinder (5) is fixed to the clamping mechanism (6), the outer edge of the clamping mechanism (6) is slidably connected to the support legs (3). The soaking tank (1) includes a tank body (11), a cleaning tank (2), a cleaning tank (3), a cleaning tank (4), a cleaning tank (5), a cleaning tank (6), a cleaning tank (5), a cleaning tank (6), a cleaning tank (6), a cleaning tank (7), a cleaning tank (8), a cleaning tank (9), a cleaning tank (10), a cleaning tank (11), a cleaning tank (12), a cleaning tank (13), a cleaning tank (14), a cleaning tank (15), a cleaning tank (16), a cleaning tank (17), a cleaning tank (18), a cleaning tank (19), a cleaning tank (12 ... The box (11) is fixed on the ground, and the box (11) is provided with a washing chamber (12) and an acid washing chamber (13) respectively. A partition (14) is provided between the washing chamber (12) and the acid washing chamber (13). The outer edge of the partition (14) is fixed to the inner wall of the box (11). A circulation mechanism (2) is fixed inside the washing chamber (12). A filter (15) is rotatably installed inside the acid washing chamber (13). The filter (15) is L-shaped and the other end of the filter (15) is tied with a traction rope (16). The other end of the traction rope (16) is fixed and wound around the outer side of the winding shaft (17), wherein the outer sides of both ends of the winding shaft (17) are rotatably connected to two of the support legs (3); one end of the winding shaft (17) is connected to the output end of the first motor, which is fixed on the outer side of one of the support legs (3); a slag collection frame (18) is fixed at one end of the box (11); The clamping mechanism (6) includes a lifting plate (61), a second motor (62), a lead screw (63), a positioning frame (64), and a pusher frame (65). The upper side of the lifting plate (61) is fixed to the output end of the cylinder (5), and the outer edge of the lifting plate (61) is slidably connected to the support leg (3). Two positioning frames (64) are fixed to the lower side of the lifting plate (61), and a lead screw (63) is rotatably installed on one side of the positioning frame (64). The other end of the lead screw (63) is fixed to the output end of the second motor (62), and the lead screw (63) passes through the pusher frame (65) through thread engagement. The upper end of the pusher frame (65) is slidably connected to the lower side of the lifting plate (61). The second motor (62) is fixed to the lifting plate (61) by bolts.

2. The production apparatus for high-strength, corrosion-resistant, and wear-resistant stainless steel pipes for high-speed trains as described in claim 1, characterized in that: The circulation mechanism (2) includes a water pump (21), an inlet pipe (22), a delivery pipe (23), and nozzles (24). The water pump (21) is fixed on the ground. The inlet pipe (22) is fixed at the input end of the water pump (21). The other end of the inlet pipe (22) is fixed to the housing (11), and the inlet pipe (22) communicates with the inside of the cleaning chamber (12). The delivery pipe (23) is fixed at the output end of the water pump (21). The delivery pipe (23) is fixed inside the cleaning chamber (12), and several nozzles (24) are fixed in the middle of the delivery pipe (23). The output ends of the nozzles (24) are all facing upwards.

3. The production apparatus for high-strength, corrosion-resistant, and wear-resistant stainless steel pipes for high-speed trains as described in claim 1, characterized in that: The positioning frame (64) includes a fixing block (641), a first electric push rod (642), an upper limit plate (643), a connecting rod (644), a second electric push rod (645), and a lower limit plate (646). The fixing block (641) is fixed to the lower side of the lifting plate (61), and the first electric push rod (642) is fixed inside the fixing block (641). A rubber pad is fixed to the output end of the first electric push rod (642). A rubber pad is fixed to the lower side of the fixing block (641). A connecting rod (644) is provided, wherein the lower end of the connecting rod (644) is rotatably connected to the upper side of the upper limit plate (643); a second electric push rod (645) is fixed at both ends of the upper limit plate (643), wherein the output end of the second electric push rod (645) is fixed to both ends of the lower limit plate (646); a plurality of clamping grooves are respectively opened on the lower side of the upper limit plate (643) and the upper side of the lower limit plate (646), wherein a plurality of steel balls are rotatably installed inside the clamping grooves.

4. The production apparatus for high-strength, corrosion-resistant, and wear-resistant stainless steel pipes for high-speed trains as described in claim 1, characterized in that: The pusher frame (65) includes a frame (651), a third electric push rod (652), an upper clamp (653), a folding frame (654), a fourth electric push rod (655), and a lower clamp (656). A lead screw (63) is threaded through the interior of the frame (651), and the third electric push rod (652) is fixed to the upper side of the frame (651). The output end of the third electric push rod (652) rotates in relation to the upper side of the upper clamp (653). The upper clamp (653) is rotatably mounted with a folding frame (654), the upper end of which is rotatably connected to the lower side of the frame (651); the upper sides of the two ends of the upper clamp (653) are respectively fixed with a fourth electric push rod (655), wherein the output end of the fourth electric push rod (655) is fixed with a lower clamp (656), and the upper side of the lower clamp (656) and the lower side of the upper clamp (653) are respectively provided with several fixing grooves.

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