Cleaning and coating system for bright stainless steel wire rope

Abstract

The utility model relates to a cleaning and coating system for a bright stainless steel wire rope, which comprises a polishing tank, a cleaning tank, a neutralizing tank, a hot water tank and a drying oven which are sequentially connected and arranged, a coating overflow box is arranged above the drying oven and is arranged in a coating box, the coating box is connected with a collecting tank, an infusion pump is arranged on the coating box, and the collecting tank is connected with the polishing tank. The collecting tank is connected with a liquid extraction pump through a liquid extraction pipe, and the liquid extraction pump is used for extracting the nano coating liquid in the collecting tank to the coating overflow box; an exhaust fan is arranged below the drying oven, one side of the exhaust fan is connected with one end of the drying oven through a first air supply pipeline, and the other side of the exhaust fan is connected with the other end of the drying oven through a second air supply pipeline. The corrosion resistance and the service life of the steel wire rope disclosed by the utility model are greatly improved under the dual protection of the nano protective layer and the self passive film.

Description

Technical Field

[0001] The utility model relates to the technical field of steel wire ropes, in particular to a cleaning and coating system for bright stainless steel wire ropes. Background Art

[0002] A steel wire rope is a helical bundle of steel wires twisted together according to certain rules, with steel wires that meet the mechanical properties and geometric dimensions. A steel wire rope consists of steel wire, a rope core, and lubricating grease. With the development of urbanization, stainless steel wire rope is increasingly used in various fields, and the requirements for its quality and performance are also getting higher and higher. For some exterior parts and plastic-coated stainless steel wire ropes, on the one hand, the surface of the wire rope must be free of lubricants such as oil and dirt, and the appearance must be beautiful and free of color difference. On the other hand, there are also higher corrosion resistance requirements. Conventional chemical cleaning methods make it difficult to ensure the consistency of the appearance of stainless steel wire ropes. The industry often uses strong acidic electrolytes to electrolyze the stainless steel wire rope as the anode. During electrolysis, the metal matrix on the stainless steel surface loses electrons, becoming free. The passivation film on the stainless steel surface is destroyed and then regenerated. At the same time, the oily and water-based lubricants used for lubrication in the front of the stainless steel wire rope are stripped off the stainless steel wire rope, resulting in a stainless steel wire rope with a consistent appearance. However, after strong acid electrolysis, on the one hand, the residual lubricant on the surface of the stainless steel wire rope is stripped off, and the corrosion resistance decreases; on the other hand, if there is any residual acidic substance, it will also affect the formation of the passivation film, thereby causing the corrosion resistance of the stainless steel wire rope product to decrease.

[0003] Therefore, there is a need in the art for a cleaning and coating system for bright stainless steel wire ropes with improved corrosion resistance. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a cleaning and coating system for bright stainless steel wire ropes. From the design and development of the post-cleaning process, the corrosion resistance of the stainless steel wire rope is improved through dual protection of electrolysis and nanomaterial coating, and it is suitable for various austenitic stainless steel wire ropes.

[0005] The purpose of this utility model is achieved in this way:

[0006] A cleaning and coating system for bright stainless steel wire ropes comprises a polishing tank, a cleaning tank, a neutralization tank, a hot water tank and an oven, wherein the polishing tank, the cleaning tank, the neutralization tank, the hot water tank and the oven are connected and arranged in sequence; a coating overflow box is provided above the oven; the coating overflow box is arranged in the coating box, the coating box is connected to a collecting tank, a liquid extraction pump is provided on the coating box, the collecting tank is connected to the liquid extraction pump through a liquid extraction pipe, and the liquid extraction pump extracts nano coating liquid in the collecting tank to the coating overflow box; an exhaust fan is provided below the oven, one side of the exhaust fan is connected to one end of the oven through a first air supply duct, and the other side of the exhaust fan is connected to the other end of the oven through a second air supply duct.

[0007] Furthermore, a fifth pulley is provided on the side of the oven close to the hot water tank, a first pulley and a sixth pulley are provided on the other side of the oven, a fourth pulley is provided above the fifth pulley, a second pulley is provided above the first pulley, a third pulley is provided between the fourth pulley and the second pulley, and a coating overflow box is provided between the third pulley and the second pulley.

[0008] Furthermore, two anode rollers are provided in the polishing tank, one at the line inlet and the other at the line outlet.

[0009] Furthermore, the anode roller in the polishing tank is made of copper, with a mass percentage greater than 99.0%.

[0010] Furthermore, the anode roller at the line inlet in the polishing tank adopts a first copper rod, and the anode roller at the line outlet adopts a second copper rod, and both the first copper rod and the second copper rod can be rotatably arranged in the polishing tank.

[0011] Furthermore, after the first copper rod, the second copper rod and the steel wire rope come into contact, the middle bow height is 2.0~3.0cm.

[0012] Furthermore, the length of the polishing groove is 1m±0.03m.

[0013] Furthermore, a heat preservation pipe is provided between the hot water tank and the oven, and the heat preservation pipe is covered with heat preservation cotton.

[0014] Furthermore, the first pulley and the second pulley are wooden pulleys.

[0015] Furthermore, the third pulley, the fourth pulley, the fifth pulley and the sixth pulley are nylon pulleys.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The utility model provides a cleaning and coating system for bright stainless steel wire ropes. The system is equipped with a multifunctional oven, which integrates the three processes of preheating, coating, and drying, thereby simplifying the process, enhancing the technical effect of nano-coating, and improving the quality of the steel wire ropes. Through the appropriate silicon-based nanomaterial composition and coating process, the nanomaterials are dried quickly, making them more suitable for mass production. At the same time, the silicon-based nanomaterials can serve as a protective layer for the stainless steel wire ropes. Under the dual protection of this nano-protective layer and its own passivation film, the corrosion resistance and service life of the stainless steel material are greatly improved. The appearance quality of the stainless steel wire ropes for plastic coating and appearance parts is consistent, without color difference, and more beautiful. Strong acid electrolytic polishing is not used, which avoids the influence of acid residues on the corrosion resistance of the steel wire ropes. At the same time, the appearance quality of the steel wire ropes can exceed the surface quality of single chemical cleaning, and achieve an appearance consistent with that of strong acid electrolytic polishing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the cleaning system of the present utility model.

[0019] Figure 2 This is a schematic structural diagram of the polishing tank of the present utility model.

[0020] in:

[0021] Polishing tank 1, cleaning tank 2, neutralization tank 3, hot water tank 4, insulation pipe 6, oven 7, first air supply duct 8, second air supply duct 9, exhaust fan 10, first pulley 11, second pulley 12, third pulley 13, fourth pulley 14, fifth pulley 15, sixth pulley 16, collecting tank 17, liquid extraction pipe 18, coating overflow box 19, liquid extraction pump 20, coating box 21, first copper rod 22, second copper rod 23. DETAILED DESCRIPTION

[0022] To better understand the technical solution of the present invention, the following detailed description is provided with reference to the relevant illustrations. It should be understood that the following specific embodiments are not intended to limit the specific implementation of the technical solution of the present invention; they are merely examples of possible implementations of the technical solution of the present invention. It should be noted that the description herein of the positional relationships of the various components, such as component A being located above component B, is based on the relative positions of the components in the illustrations and is not intended to limit the actual positional relationships of the components. Example 1

[0023] See also Figure 1-Figure 2 , Figure 1 A schematic diagram of the cleaning and coating system for bright stainless steel wire ropes according to the present invention is provided. As shown, the system comprises a polishing tank 1, a cleaning tank 2, a neutralization tank 3, a hot water tank 4, and an oven 7. These tanks are sequentially connected via pipes. An insulation pipe 6, covered with insulation foam, connects the hot water tank 4 and oven 7.

[0024] A coating overflow box 19 is provided above the oven 7, and the coating overflow box 19 is arranged in a coating box 21. The coating box 21 is connected to a collecting tank 17. A liquid pump 20 is provided on the coating box 21. The collecting tank 17 is connected to the liquid pump 20 through a liquid pumping pipe 18. The liquid pump 20 pumps the nano coating liquid in the collecting tank 17 to the coating overflow box 19; the coating overflow box 19 is equipped with a sealed cover to reduce material volatilization.

[0025] The oven 7 uses circulating hot air. An exhaust fan 10 is provided below the oven 7. One side of the exhaust fan 10 is connected to one end of the oven 7 through a first air supply duct 8, and the other side of the exhaust fan 10 is connected to the other end of the oven 7 through a second air supply duct 9. The exhaust fan 10 blows hot air from the oven outlet through the lower air supply duct to the oven 7 inlet, forming a hot air circulation inside the oven.

[0026] A fifth pulley 15 is provided on the side of the oven 7 close to the hot water tank 4, and a first pulley 11 and a sixth pulley 16 are provided on the other side of the oven 7. A fourth pulley 14 is provided above the fifth pulley 15, and a second pulley 12 is provided above the first pulley 11. A third pulley 13 is provided between the fourth pulley 14 and the second pulley 12, and a coating overflow box 19 is provided between the third pulley 13 and the second pulley 12.

[0027] The anode roller in the polishing tank 1 is made of copper with a mass percentage greater than 99.0%. The anode roller in the polishing tank 1 is provided with two copper rods: a first copper rod 22 and a second copper rod 23 at the wire inlet and outlet. The first copper rod 22 and the second copper rod 23 are both rotatably arranged in the polishing tank 1, thereby reducing the hard friction between the wire rope and the anode roller and extending the service life of the anode roller.

[0028] After the first copper rod 22 and the second copper rod 23 come into contact with the steel wire rope, the middle bow height is 2.0-3.0 cm.

[0029] The effective length of the polishing tank 1 is 1 m ± 0.03 m, the electrolysis temperature can be 50.0-65.0 ° C, and the electrolysis current is 7.5-14.9 A / mm 2 .

[0030] The first pulley 11 and the second pulley 12 are made of wooden pulleys. Wood has a certain moisture absorption effect, which can prevent the undried steel wire rope from affecting the coating. The third pulley 13, the fourth pulley 14, the fifth pulley 15 and the sixth pulley 16 are made of nylon pulleys. The nylon material effectively prevents the wear of the nano coating and is conducive to drying and solidification.

[0031] After the wire rope passes through the pulley and enters the drying oven, it is more susceptible to heat, maintaining a wire temperature of 65.0-75.0°C before entering the coating overflow box. This allows the nanomaterial to be more active during coating, facilitating coating. The optimal oven temperature is 100-180°C. Temperatures that are too high or too low are detrimental to the coating solidification, and undried winding can cause the wire rope to stick, resulting in decreased straightness and no improvement in corrosion resistance.

[0032] The utility model relates to a production process of a cleaning and coating system for bright stainless steel wire ropes, including the following contents:

[0033] S1. Closing and releasing the rope:

[0034] The stainless steel busbar is drawn to obtain stainless steel wire, which is then twisted into a stainless steel wire rope through multiple processes. The stainless steel wire rope is passively paid out at a pay-off location, with a pay-off tension of <50N (the stainless steel wire rope is austenitic stainless steel).

[0035] S2. Electrolytic polishing:

[0036] The stainless steel wire rope released in step S1 is electrolyzed in the electrolytic polishing tank 1. The stainless steel wire rope is in contact with the anode roller, the anode roller is made of copper, and the lead plate is used as the cathode. The mixed acid electrolyte is used for electrolysis; the electrolyte includes the following components in percentage by weight: 10.0% to 12.0% sulfuric acid, 70% to 75.0% cleaning solution (density of 1.35g / cm 3 ) and 1%~1.2% citric acid solid, the rest is water and inevitable impurities. The cleaning fluid can be the 104E room temperature cleaning fluid produced by Jiangsu Hongci Technology Co., Ltd.; the specific gravity of the mixed electrolyte is 1.3~1.4g / cm 3 , use water to adjust the density, the electrolysis temperature is 50.0℃~60.0℃, and the electrolysis current is 7.5~14.9A / mm 2 ;

[0037] S3, rinsing:

[0038] The stainless steel wire rope after electrolytic polishing in step S2 is washed with clean water in the cleaning tank 2 to clean the residual acidic electrolyte, and the pH value is controlled between 3 and 5 with tap water;

[0039] S4, neutralization:

[0040] The stainless steel wire rope after rinsing in step S3 is passed through the neutralization tank 3 and neutralized with an alkaline solution, and its pH value is controlled between 6 and 7.5 by titration of the alkaline solution; the alkaline solution is 98% to 99.5% by mass of an alkaline cleaning agent and 0.5% to 2% by mass of an organic emulsified silicon, and the alkaline cleaning agent can be a WC-180FZ alkaline cleaning agent of Jinan Yinuo Lubricant Manufacturing Co., Ltd.;

[0041] S5. Hot water washing:

[0042] The stainless steel wire rope neutralized in step S4 is washed in hot water tank 4 using 70-85°C hot water to preheat the wire rope, and the pH value is controlled between 6.5 and 7.0 by adding tap water;

[0043] S6. Coating:

[0044] The stainless steel wire rope after the hot water washing in step S5 is preheated in the oven 7. The temperature of the wire rope after the hot water washing is 30-60°C, and the temperature of the oven 7 is 160.0°C. After the wire rope exits the oven 7, it is guided by a pulley into the coating overflow box 19. After passing through the coating overflow box 19, it is guided by a pulley and then enters the oven 7 for drying. The coating overflow box 19 is provided with a nano coating liquid. The mass percentage of the nano coating liquid is: 88% of silicon-based nanomaterials, 12% of toluene and a 1:1 mixture of isopropyl alcohol. The silicon-based nanomaterial can be HC008-2 silicon-based nanomaterials produced by Jiangsu Hongci Technology Co., Ltd. After being diluted with a 1:1 mixture of toluene and isopropyl alcohol, it is easier to dry and solidify in the coating process. The solidification time is 50-60S.

[0045] The preferred solidification and drying time is 50-60 seconds. If the time is too short, the coating layer will not dry, which will cause the wire rope to stick after it is not dried in step S7, resulting in a decrease in straightness and no improvement in corrosion resistance.

[0046] S7, Reeling in:

[0047] The steel wire rope coated with the nano coating liquid and dried in step S6 is taken up by a take-up machine.

[0048] The utility model relates to a production and preparation method for bright stainless steel wire rope hoisting corrosion resistance, which can obtain relatively stable corrosion resistance and good appearance quality, has low production cost, and is suitable for large-scale promotion and application.

[0049] The above are only specific application examples of the present invention and do not constitute any limitation on the scope of protection of the present invention. Any technical solution formed by equivalent transformation or equivalent replacement shall fall within the scope of protection of the present invention.

Claims

1. A cleaning and coating system for bright stainless steel wire rope, characterized by: The invention comprises a polishing tank (1), a cleaning tank (2), a neutralization tank (3), a hot water tank (4) and an oven (7), wherein the polishing tank (1), the cleaning tank (2), the neutralization tank (3), the hot water tank (4) and the oven (7) are connected and arranged in sequence, a coating overflow box (19) is provided above the oven (7), the coating overflow box (19) is arranged in a coating box (21), the coating box (21) is connected to a collecting tank (17), a liquid pump (20) is provided on the coating box (21), the collecting tank (17) is connected to the liquid pump (20) via a liquid pumping pipe (18), and the liquid pump (20) pumps the nano coating liquid in the collecting tank (17) to the coating overflow box (19); An exhaust fan (10) is provided below the oven (7), one side of the exhaust fan (10) is connected to one end of the oven (7) via a first air supply duct (8), and the other side of the exhaust fan (10) is connected to the other end of the oven (7) via a second air supply duct (9).

2. A bright stainless steel wire rope cleaning and coating system according to claim 1, characterized in that: A fifth pulley (15) is provided on one side of the oven (7) close to the hot water tank (4), and a first pulley (11) and a sixth pulley (16) are provided on the other side of the oven (7). A fourth pulley (14) is provided above the fifth pulley (15), and a second pulley (12) is provided above the first pulley (11). A third pulley (13) is provided between the fourth pulley (14) and the second pulley (12), and a coating overflow box (19) is provided between the third pulley (13) and the second pulley (12).

3. The cleaning and coating system for bright stainless steel wire rope according to claim 1, characterized in that: The polishing tank (1) is provided with two anode rollers at the line inlet and the line outlet.

4. A bright stainless steel wire rope cleaning and coating system according to claim 3, characterized in that: The anode roller at the line inlet in the polishing tank (1) adopts a first copper rod (22), and the anode roller at the line outlet adopts a second copper rod (23). Both the first copper rod (22) and the second copper rod (23) can be rotatably arranged in the polishing tank (1).

5. A bright stainless steel wire rope cleaning and coating system according to claim 4, characterized in that: After the first copper rod (22), the second copper rod (23) and the steel wire rope come into contact, the middle bow height is 2.0-3.0 cm.

6. The bright stainless steel wire rope cleaning and coating system according to claim 1, characterized in that: The length of the polishing groove (1) is 1m±0.03m.

7. The cleaning and coating system for bright stainless steel wire rope according to claim 1, characterized in that: A heat preservation pipe (6) is provided between the hot water tank (4) and the oven (7) for connection, and the heat preservation pipe (6) is covered with heat preservation cotton.

8. The cleaning and coating system for bright stainless steel wire rope according to claim 2, characterized in that: The first pulley (11) and the second pulley (12) are wooden pulleys.

9. The cleaning and coating system for bright stainless steel wire rope according to claim 2, characterized in that: The third pulley (13), the fourth pulley (14), the fifth pulley (15) and the sixth pulley (16) are nylon pulleys.

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