Surface treatment process and treatment system based on corrosion resistance of magnetic metal material

Abstract

The invention discloses a surface treatment process and treatment system based on corrosion resistance of a magnetic metal material, and relates to the technical field of metal material surface treatment.The surface treatment process comprises the following steps that S1, a coupling agent is diluted, and an organic solvent with the proportion being 0.05-2% is added for mixing; s2, material crushing: adding the materials into a ball mill to be crushed so as to screen out materials with proper particle sizes; s3, soaking the material in a diluted coupling agent for mixing treatment so as to carry out anti-corrosion treatment on the surface; and S4, the soaked materials are fed into drying equipment to be dried. As the titanate coupling agent is diluted by the acetone, the ethanol and the tetraethoxysilane, the diluted coupling agent can better fit and soak the material, so that the surface of the material is more easily covered by the coupling agent, and the surface of the same-polarity neodymium iron boron magnetic powder can have good corrosion resistance after being dried.

Description

Technical Field

[0001] This invention relates to the field of surface treatment technology for metallic materials, and specifically to a surface treatment process and system for corrosion resistance of magnetic metallic materials. Background Technology

[0002] Neodymium iron boron (NdFeB), as a rare-earth permanent magnet material, possesses extremely high magnetic energy product and coercivity. Its high energy density has enabled its widespread application in modern industry and electronics, making it possible to miniaturize, lighten, and thinn instruments, electroacoustic motors, and magnetic separation and magnetization equipment. However, traditional NdFeB magnetic powder reprocessing results in low corrosion resistance, making the metal material highly susceptible to corrosion during subsequent use, thus affecting its performance. Furthermore, existing processing techniques involve numerous and cumbersome steps, are complex to operate, and are inefficient. Summary of the Invention

[0003] The purpose of this invention is to provide a surface treatment process and system based on magnetic metal materials to resist corrosion, thereby overcoming the aforementioned shortcomings in the prior art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a surface treatment process for corrosion resistance based on magnetic metal materials, comprising the following steps:

[0005] S1. Dilute the coupling agent and mix with 0.05-2% organic solvent.

[0006] S2. Material crushing: Add the material into the ball mill for crushing to screen out materials of suitable particle size.

[0007] S3. The material is soaked in diluted coupling agent and mixed to treat the surface for corrosion resistance.

[0008] S4. Send the soaked material into the drying equipment for drying;

[0009] The coupling agent used is a titanate coupling agent, while the organic solvents used are acetone, ethanol, and tetraethyl orthosilicate, and the material is isotropic neodymium iron boron magnetic powder.

[0010] A surface treatment system based on magnetic metal material for corrosion resistance, used to process the above-mentioned process, includes a base on which a ball mill cylinder is rotatably mounted; and a side rod fixedly mounted on the base and located at the inlet end of the ball mill cylinder.

[0011] A first rotating shaft and a second rotating shaft are both rotatably mounted inside a side rod. A roller is fixedly mounted on the first rotating shaft, and a fan blade is fixedly mounted on the second rotating shaft. A belt is installed between the first rotating shaft and the second rotating shaft for transmission.

[0012] The fixed ring is fixedly installed on the ball mill cylinder, and the fixed ring rotates synchronously with the ball mill cylinder, thereby driving the roller to rotate and thus making the fan blade rotate;

[0013] A first cylinder and a second cylinder, with a screening space formed between the first cylinder and the second cylinder;

[0014] The outer frame is slidably mounted on the first cylinder and the second cylinder, and the sliding of the outer frame can close the screening space to form a wetted space.

[0015] During the process of the ball mill rotating to crush and grind the material inside, the fan blades will rotate at high speed to blow air into the second cylinder. With the flow of air, the crushed material can be sucked into the screening space, and after the outer frame rotates, a wetting space is formed to wet the material for surface treatment.

[0016] Preferably, a partition is fixedly installed between the first cylinder and the second cylinder.

[0017] Preferably, the first cylinder has a first through hole, and the second cylinder has a second through hole, with the size of the first through hole being larger than the size of the second through hole.

[0018] Preferably, a connecting frame is fixedly installed on the fixing ring, a sliding frame is slidably installed inside the connecting frame along the radial direction of the ball mill cylinder, an inner rod is slidably installed inside the sliding frame, an abutting rod is fixedly installed on the side rod, and a first inclined edge is provided at the end of the abutting rod and the inner rod that are close to each other, a toggle rod is slidably installed inside the ball mill cylinder along its radial direction, and a push plate is fixedly installed on the toggle rod, a sliding plate is slidably installed on the ball mill cylinder along its axial direction, and a second inclined edge is provided at the end of the sliding plate and the push plate that are close to each other, and a first spring is fixedly installed between the connecting frame and the fixing ring.

[0019] Preferably, one end of the outer frame is provided with a feed inlet, and the other end is provided with a discharge outlet.

[0020] Preferably, a vertical plate is fixedly installed at the end of the base away from the side rod, and a collection box is slidably installed on the vertical plate;

[0021] A round rod is rotatably mounted on the upright plate, and a cover plate and an outer plate are fixedly mounted at both ends of the round rod, respectively.

[0022] Preferably, an abutment strip is vertically slidably installed on the upright plate, the abutment strip is L-shaped, and a square block is horizontally slidably installed on the upright plate;

[0023] A protrusion is fixedly installed on the ball mill cylinder, and a slider is slidably installed on the ball mill cylinder along its radial direction. A second spring is fixedly installed between the slider and the protrusion, and a ring is slidably installed on the ball mill cylinder along its axial direction. A pressure block is fixedly installed on the inner wall of the ring, and the ends of the pressure block and the slider that are close to each other are chamfered.

[0024] Preferably, a coil spring is fixedly installed between the round rod and the upright plate.

[0025] Preferably, an arc-shaped plate is fixedly installed on the upright plate, and the two arc-shaped plates wrap around the first cylinder;

[0026] A fixed frame is fixedly installed on the arc-shaped plate, a servo motor is fixedly installed on the fixed frame, and a friction wheel is fixedly installed on the output end of the servo motor.

[0027] In the above technical solution, the present invention provides a surface treatment process and system for corrosion resistance of magnetic metal materials, which has the following beneficial effects: In this application, as the titanate coupling agent is diluted with acetone, ethanol and tetraethyl orthosilicate, the diluted coupling agent will better adhere to and soak with the material, thereby making the surface of the material easier to be covered by the coupling agent. Then, after drying, the surface of the isotropic NdFeB magnetic powder can have good corrosion resistance. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0029] Figure 1 This is a three-dimensional structural schematic diagram provided for an embodiment of the present invention;

[0030] Figure 2 Provided for embodiments of the present invention Figure 1 Partial structural diagram;

[0031] Figure 3 Provided for embodiments of the present invention Figure 2 Partial structural diagram;

[0032] Figure 4 This is a partial structural schematic diagram of a ball mill cylinder provided in an embodiment of the present invention;

[0033] Figure 5 This is a partial structural schematic diagram of the fixing ring provided in an embodiment of the present invention;

[0034] Figure 6This is a partial structural schematic diagram of the first cylinder provided in an embodiment of the present invention;

[0035] Figure 7 This is a partial structural schematic diagram of the first through hole provided in an embodiment of the present invention;

[0036] Figure 8 This is a partial structural diagram of the first and second cylinders provided in an embodiment of the present invention;

[0037] Figure 9 This is a partial structural schematic diagram of the skateboard provided in an embodiment of the present invention;

[0038] Figure 10 This is a partial structural schematic diagram of the ring provided in an embodiment of the present invention;

[0039] Figure 11 Provided for embodiments of the present invention Figure 10 A schematic diagram of the structure at point A;

[0040] Figure 12 This is a partial structural diagram of the block provided in an embodiment of the present invention.

[0041] Explanation of reference numerals in the attached figures:

[0042] 1. Base; 2. Grinding cylinder; 31. Side rod; 32. First rotating shaft; 33. Roller; 34. Belt; 35. Second rotating shaft; 36. Fan blade; 37. First cylinder; 38. Outer frame; 39. Second cylinder; 310. Partition plate; 311. First through hole; 312. Second through hole; 313. Fixing ring; 41. Connecting frame; 42. Sliding frame; 43. Inner rod; 44. Abutting rod; 45. Slide plate; 46. Push plate; 47. Actuating rod; 51. Vertical plate; 52. Collection box; 61. Cover plate; 62. Round rod; 63. Outer plate; 64. Abutting strip; 65. Protrusion; 66. Slider; 67. Pressure block; 68. Circular ring; 69. Square block; 71. Servo motor; 72. Fixing frame; 73. Friction wheel. Detailed Implementation

[0043] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0044] Please see Figure 1-12 A surface treatment process and system for corrosion resistance based on magnetic metal materials includes the following steps:

[0045] S1. Dilute the coupling agent and mix with 0.05-2% organic solvent.

[0046] S2. Material crushing: Add the material into the ball mill for crushing to screen out materials of suitable particle size.

[0047] S3. The material is soaked in diluted coupling agent and mixed to treat the surface for corrosion resistance.

[0048] S4. Send the soaked material into the drying equipment for drying;

[0049] The coupling agent used is a titanate coupling agent, while the organic solvents used are acetone, ethanol, and tetraethyl orthosilicate, and the material is isotropic neodymium iron boron magnetic powder.

[0050] A surface treatment system based on magnetic metal material for corrosion resistance, used to process the above-mentioned process, includes a base 1, on which a ball mill cylinder 2 is rotatably mounted; it also includes: a side rod 31, which is fixedly mounted on the base 1 and located at the inlet end of the ball mill cylinder 2; a first rotating shaft 32 and a second rotating shaft 35, both rotatably mounted inside the side rod 31, with a roller 33 fixedly mounted on the first rotating shaft 32 and a fan blade 36 fixedly mounted on the second rotating shaft 35, and a belt 34 driving the first rotating shaft 32 and the second rotating shaft 35; and a fixing ring 313, which is fixedly mounted on the ball mill cylinder 2, and the fixing ring 313 rotates synchronously with the ball mill cylinder 2 while driving the roller 33 to rotate, thereby causing the fan blade 36 to rotate;

[0051] A screening space is formed between the first cylinder 37 and the second cylinder 39;

[0052] The outer frame 38 is slidably mounted on the first cylinder 37 and the second cylinder 39, and the sliding of the outer frame 38 can close the screening space to form a wetted space.

[0053] During the process of the ball mill cylinder 2 rotating to crush and grind the material inside, the fan blade 36 will rotate at high speed synchronously to blow air into the inside of the second cylinder 39. With the flow of air, the crushed material can be sucked into the screening space, and after the outer frame 38 rotates, a wetting space is formed to wet the material for surface treatment.

[0054] In another embodiment of the present invention: a partition plate 310 is fixedly installed between the first cylinder 37 and the second cylinder 39;

[0055] In existing surface treatment processes and systems, workers typically need to put materials into a ball mill for crushing to achieve the appropriate crushing force. Then, a coupling agent is diluted and poured into the materials to mix them. After soaking and mixing, the materials are moved to a dryer for drying, thereby giving the metal surface corrosion resistance and anti-aging properties. These steps are usually carried out independently. In the surface treatment process, whether it is crushing the materials or soaking the materials, they are all independent operations that require manual or robotic operation. After crushing, the materials need to be screened to select suitable materials, and then the screened materials need to be soaked and mixed. However, there are many steps in this process, which makes the entire processing flow cumbersome and time-consuming.

[0056] The gap between the first cylinder 37 and the second cylinder 39 is divided into multiple areas by the partition 310. The size of the space is adapted to the size of the outer frame 38. When the outer frame 38 rotates to a certain screening space, the outer frame 38 will close the screening space so that the material in the first cylinder 37 and the second cylinder 39 can be wetted by the subsequent coupling agent for surface treatment, thereby making the whole process smooth.

[0057] Therefore, as the ball mill cylinder 2 rotates, it will passively perform screening operations at any time. At the same time, the screened material is stored in the screening space and soaked in the soaking space to fully treat its surface. As the soaking ends, the material will also be taken out synchronously during the flow of the coupling agent, so that no additional removal or movement operations are required.

[0058] In another embodiment of the present invention: a first through hole 311 is provided on the first cylinder 37, and a second through hole 312 is provided on the second cylinder 39, wherein the size of the first through hole 311 is larger than the size of the second through hole 312;

[0059] The first through hole 311 is located on the first cylinder 37 and is located on the outer periphery. When the fan blade 36 blows air into the second cylinder 39, the airflow flows inside the second cylinder 39. As the airflow flows, the air pressure near the second through hole 312 decreases. At this time, the second through hole 312 will generate suction, which will generate suction on the circumferential surface of the second cylinder 39. At the same time, the suction will pass through the first through hole 311 to adsorb the material outside the first cylinder 37. At this time, the material that meets the size will be sucked into the screening space between the first through hole 311 and the second through hole 312.

[0060] Furthermore, the second through hole 312 can be inclined, and the inclination direction of the second through hole 312 is set in the direction of airflow, thereby preventing wind from blowing into the second through hole 312;

[0061] As the generated suction draws the material into the screening space, the material will adhere to the surface of the second cylinder 39 due to the small size of the second through hole 312, thus preventing it from entering the second cylinder 39.

[0062] In another embodiment of the present invention: a connecting frame 41 is fixedly installed on the fixing ring 313, a sliding frame 42 is slidably installed inside the connecting frame 41 along the radial direction of the ball mill cylinder 2, an inner rod 43 is slidably installed inside the sliding frame 42, an abutting rod 44 is fixedly installed on the side rod 31, and a first inclined edge is provided at the end of the abutting rod 44 and the inner rod 43 that are close to each other, a toggle rod 47 is slidably installed inside the ball mill cylinder 2 along its radial direction, a push plate 46 is fixedly installed on the toggle rod 47, a sliding plate 45 is slidably installed on the ball mill cylinder 2 along its axial direction, and a second inclined edge is provided at the end of the sliding plate 45 and the push plate 46 that are close to each other, and a first spring is fixedly installed between the connecting frame 41 and the fixing ring 313;

[0063] As the grinding process in the ball mill 2 progresses, once the grinding reaches a certain stage, the rotation speed of the ball mill 2 can be increased. With this increased rotation speed, the sliding frame 42 and the inner rod 43 are thrown outwards by centrifugal force, sliding until they reach the outer edge of the connecting frame 41. At this point, the inner rod 43 stops sliding. The rotation of the ball mill 2 then causes the inner rod 43 to move in a circular motion. Since the position of the abutment rod 44 is fixed, when the connecting frame 41 moves the inner rod 43 close to the abutment rod 44, the abutment rod 44 will be flush with the inner rod 43. At this point, the first inclined edge on the inner rod 43 will contact the first inclined edge on the abutment rod 44, causing the inner rod 43 to be compressed and move inwards. As the slide plate 45 is squeezed and moves into the ball mill cylinder 2, it will press the push plate 46 through the second inclined edge of its surface. At this time, the push plate 46 will slide along the radial direction of the ball mill cylinder 2 and move into the ball mill cylinder 2. At this time, the actuating rod 47 is at the bottom of the ball mill cylinder 2. At the same time, due to the nature of ball milling, the crushing balls in the material box are all located at the bottom of the ball mill cylinder 2. When the actuating rod 47 is pushed up by the push plate 46, the material on it will be pushed up and rise. At this time, the material will approach the first cylinder 37 and the second cylinder 39. At this time, due to the continuous rotation of the fan blade 36, the suction force generated by the second through hole 312 on the second cylinder 39 can more easily draw the material outside the first cylinder 37 into the screening space.

[0064] The roller 33 is located inside the fixed ring 313, and the size of the roller 33 is smaller than the size of the fixed ring 313. Therefore, when the fixed ring 313 rotates once, the roller 33 will rotate multiple times, thereby making the rotation speed of the fan blade 36 greater than the rotation speed of the ball mill cylinder 2 to generate wind power.

[0065] In another embodiment of the present invention: one end of the outer frame 38 is provided with a feed inlet, and the other end is provided with a discharge outlet;

[0066] The feed inlet can be connected to a pipe so that the coupling agent enters the soaking space formed by the outer frame 38 and the screening space. At this time, the material in the soaking space will be soaked by the coupling agent flowing in. The height of the feed inlet is higher than that of the discharge outlet. So when the discharge outlet is opened, the coupling agent flows outward and at the same time, it will also drive the material out of the soaking space, thereby taking the material out of the screening space between the first cylinder 37 and the second cylinder 39.

[0067] In another embodiment of the present invention: a vertical plate 51 is fixedly installed at one end of the base 1 away from the side rod 31, and a collection box 52 is slidably installed on the vertical plate 51;

[0068] A round rod 62 is rotatably mounted on the upright plate 51, and a cover plate 61 and an outer plate 63 are fixedly mounted at both ends of the round rod 62, respectively.

[0069] The size of the baffle 61 is larger than the size of the outlet, and the baffle 61 fits snugly against the outer frame 38. Under normal conditions, the baffle 61 can block the outlet to prevent the material and coupling agent liquid from flowing out. Furthermore, a rubber pad is fixedly installed on the baffle 61, which makes the sealing effect better.

[0070] In another embodiment of the present invention: an abutment strip 64 is vertically slidably installed on the upright plate 51, the abutment strip 64 is L-shaped, and a square block 69 is horizontally slidably installed on the upright plate 51;

[0071] A protrusion 65 is fixedly installed on the ball mill cylinder 2. A slider 66 is slidably installed on the ball mill cylinder 2 along its radial direction. A second spring is fixedly installed between the slider 66 and the protrusion 65. A ring 68 is slidably installed on the ball mill cylinder 2 along its axial direction. A pressure block 67 is fixedly installed on the inner wall of the ring 68. The ends of the pressure block 67 and the slider 66 that are close to each other are chamfered.

[0072] When the soaking process ends and material needs to be collected, the rotation speed of the ball mill cylinder 2 is increased. As the rotation speed increases, the slider 66 will slide outwards due to centrifugal force, approaching the pressure block 67. The pressure block 67 will then be pushed away from the ball mill cylinder 2. Simultaneously, the ring 68 will move away from the ball mill cylinder 2. As the ring 68 moves, it will come into contact with the block 69. The block 69 will then be pressed against the abutment strip 64. Because the surface of the block 69 has a chamfer, the block... The chamfer of 69 will press the abutment strip 64, causing the abutment strip 64 to move upward and thus push the outer plate 63 to rotate. When the outer plate 63 rotates, it will drive the baffle 61 to rotate through the round rod 62. At this time, the baffle 61 will move away from the discharge port, thus opening the discharge port. A protruding plate is fixedly installed at the bottom of the block 69, and a return spring is fixedly installed between the protruding plate and the upright plate 51. The return spring can push the block 69 to return to its original position when the ring 68 moves away from the block 69.

[0073] In another embodiment of the present invention: a coil spring is fixedly installed between the round rod 62 and the upright plate 51;

[0074] When the abutment bar 64 presses against the outer plate 63, causing it to rotate the round rod 62, the coil spring will store energy until the abutment bar 64 moves away. At this time, the coil spring will drive the round rod 62 to rotate and reset, thereby causing the baffle plate 61 to close the discharge port.

[0075] In another embodiment of the present invention: an arc-shaped plate is fixedly installed on the upright plate 51, and the two arc-shaped plates wrap around the first cylinder 37;

[0076] A fixed frame 72 is fixedly installed on the curved plate, a servo motor 71 is fixedly installed on the fixed frame 72, and a friction wheel 73 is fixedly installed on the output end of the servo motor 71.

[0077] The friction wheel 73 is in contact with the first cylinder 37. By rotating the friction wheel 73, the first cylinder 37 and the second cylinder 39 can be rotated, thereby adjusting different screening spaces to cooperate with the outer frame 38 to form an soaking space.

[0078] Two of the arc-shaped plates will restrict the first cylinder 37, thereby allowing the first cylinder 37 to rotate. At the same time, arc-shaped plates are also provided on the side rod 31, so that the first cylinder 37 is limited on both sides by multiple arc-shaped plates.

[0079] When the actuating rod 47 is pushed to make the material and metal balls on it jump up, some of the metal balls will come into contact with the first cylinder 37 and thus hit the first cylinder 37. At this time, the material adhering to the surface of the first cylinder 37 and the second cylinder 39 in the screening space enclosed by the outer frame 38 will be shaken off and thus accumulate at the bottom for soaking.

[0080] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A surface treatment process for corrosion resistance based on magnetic metal materials, characterized in that, Includes the following steps: S1. Dilute the coupling agent and mix with 0.05-2% organic solvent. S2. Material crushing: Add the material into the ball mill for crushing to screen out materials of suitable particle size. S3. The material is soaked in diluted coupling agent and mixed to treat the surface for corrosion resistance. S4. Send the soaked material into the drying equipment for drying; The coupling agent used is a titanate coupling agent, while the organic solvents used are acetone, ethanol, and tetraethyl orthosilicate, and the material is isotropic neodymium iron boron magnetic powder.

2. A surface treatment system based on magnetic metal materials for corrosion resistance, characterized in that, It is used to process the process described in claim 1, and includes a base (1) on which a ball mill cylinder (2) is rotatably mounted. Also includes: Side rod (31), which is fixedly installed on base (1) and located at the inlet end of ball mill cylinder (2); The first rotating shaft (32) and the second rotating shaft (35) are both rotatably mounted in the side rod (31). A roller (33) is fixedly mounted on the first rotating shaft (32), and a fan blade (36) is fixedly mounted on the second rotating shaft (35). A belt (34) is installed between the first rotating shaft (32) and the second rotating shaft (35) for transmission. The fixed ring (313) is fixedly installed on the ball mill cylinder (2), and the fixed ring (313) rotates synchronously with the ball mill cylinder (2) while driving the roller (33) to rotate, thereby causing the fan blade (36) to rotate; A first cylinder (37) and a second cylinder (39) form a screening space between the first cylinder (37) and the second cylinder (39); The outer frame (38) is slidably mounted on the first cylinder (37) and the second cylinder (39), and the sliding of the outer frame (38) can close the screening space to form a wetted space. During the process of the ball mill cylinder (2) rotating to crush and grind the material inside, the fan blade (36) will rotate at high speed to blow air into the second cylinder (39). With the flow of air, the crushed material can be sucked into the screening space, and after the outer frame (38) rotates, a wetting space is formed to wet the material for surface treatment.

3. The surface treatment system based on magnetic metal material for corrosion resistance according to claim 2, characterized in that, A partition (310) is fixedly installed between the first cylinder (37) and the second cylinder (39).

4. The surface treatment system based on magnetic metal material for corrosion resistance according to claim 2, characterized in that, The first cylinder (37) has a first through hole (311), and the second cylinder (39) has a second through hole (312), and the size of the first through hole (311) is larger than the size of the second through hole (312).

5. The surface treatment system based on magnetic metal material for corrosion resistance according to claim 2, characterized in that, A connecting frame (41) is fixedly installed on the fixed ring (313). A sliding frame (42) is slidably installed inside the connecting frame (41) along the radial direction of the ball mill cylinder (2). An inner rod (43) is slidably installed inside the sliding frame (42). An abutting rod (44) is fixedly installed on the side rod (31). The abutting rod (44) and the inner rod (43) are both provided with a first inclined edge at their respective ends. A toggle rod (47) is slidably installed inside the ball mill cylinder (2) along its radial direction. A push plate (46) is fixedly installed on the toggle rod (47). A sliding plate (45) is slidably installed on the ball mill cylinder (2) along its axial direction. The sliding plate (45) and the push plate (46) are both provided with a second inclined edge at their respective ends. A first spring is fixedly installed between the connecting frame (41) and the fixed ring (313).

6. The surface treatment system based on magnetic metal material for corrosion resistance according to claim 2, characterized in that, The outer frame (38) has a feed inlet at one end and a discharge outlet at the other end.

7. The surface treatment system based on magnetic metal material for corrosion resistance according to claim 2, characterized in that, A vertical plate (51) is fixedly installed at one end of the base (1) away from the side rod (31), and a collection box (52) is slidably installed on the vertical plate (51). A round rod (62) is rotatably mounted on the upright plate (51), and a cover plate (61) and an outer plate (63) are fixedly mounted at both ends of the round rod (62).

8. The surface treatment system based on magnetic metal material for corrosion resistance according to claim 7, characterized in that, A contact strip (64) is vertically slidably installed on the upright plate (51). The contact strip (64) is L-shaped, and a block (69) is horizontally slidably installed on the upright plate (51). A protrusion (65) is fixedly installed on the ball mill cylinder (2), and a slider (66) is slidably installed on the ball mill cylinder (2) along its radial direction. A second spring is fixedly installed between the slider (66) and the protrusion (65), and a ring (68) is slidably installed on the ball mill cylinder (2) along its axial direction. A pressure block (67) is fixedly installed on the inner wall of the ring (68), and the pressure block (67) and the slider (66) both have chamfers at their closest points.

9. A surface treatment system based on magnetic metal material for corrosion resistance according to claim 7, characterized in that, A coil spring is fixedly installed between the round rod (62) and the upright plate (51).

10. A surface treatment system based on magnetic metal material for corrosion resistance according to claim 7, characterized in that, An arc-shaped plate is fixedly installed on the upright plate (51), and the two arc-shaped plates wrap around the first cylinder (37). A fixed frame (72) is fixedly installed on the arc plate, and a servo motor (71) is fixedly installed on the fixed frame (72), and a friction wheel (73) is fixedly installed at the output end of the servo motor (71).

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