Manganin strip surface protection equipment

Abstract

Manganese-copper strip surface protection equipment comprises an unwinding device, a soaking device, a clear water spraying device, a drying oven device and a winding device which are sequentially arranged, and is characterized in that an unwinding steering device is arranged between the unwinding device and the soaking device, and an air bellow device is arranged between the clear water spraying device and the drying oven device; a tension roller device and a winding steering device are sequentially arranged between the drying oven device and the winding device, the unwinding steering device and the winding steering device are each provided with a vertically-symmetrical guide roller set, a first limiting device is arranged at an outlet of the unwinding steering device, and a second limiting device is arranged at an inlet of the air bellow device. A third limiting device is arranged at an inlet of the winding steering device, and a wiping device is arranged on the front side of the second limiting device.

Description

Technical Field

[0001] This utility model relates to the field of strip processing technology, and in particular to a surface protection device for manganese copper strip. Background Technology

[0002] Manganese copper, a typical precision resistance alloy, features a low temperature coefficient of resistance and a low thermoelectric potential for copper, making it suitable for manufacturing various standard resistors, shunts, fixed chip resistors, and resistive elements in instruments and meters. However, due to the reactive metal elements such as copper and manganese in its composition, manganese copper alloys are prone to oxidation when exposed to oxygen or moisture, exhibiting weak oxidation resistance. Currently, manganese copper strip products that have not undergone surface protection processes are prone to surface oxidation and discoloration within a short period without timely anti-oxidation treatment, leading to changes in product performance and even scrapping. Research shows that benzotriazole (BTA) can form a corrosion-inhibiting film on the surface of manganese copper alloys, thereby acting as a passivation agent and preventing surface oxidation. Therefore, surface BTA protection of manganese copper strips to improve their surface oxidation resistance and extend their shelf life is essential.

[0003] For example, the copper strip passivation method disclosed in CN115928091A includes an unwinding machine, a hot water cleaning section, a degreasing agent spray chamber, a brush cleaning section I, a water spray section I, an acid pickling section, a grinding section, a brush cleaning section II, a water spray section II, a passivation section, a drying chamber, and a winding machine. The ground and cleaned copper strip passes through the passivation section and the drying chamber, and the passivated and dried copper strip is wound onto the winding machine. However, this copper strip passivation method has the following drawbacks: the method does not recycle the passivation solution (benzotriazole solution) remaining on the copper strip surface, resulting in resource waste; the method also does not clean the passivation solution (benzotriazole solution) on the copper strip surface before winding. If the benzotriazole solution on the surface of the manganese copper strip is not cleaned off, the residual benzotriazole solution on the strip surface will precipitate pits after being left in the air for a period of time, seriously affecting the surface quality of the strip; the method only uses a drying chamber to dry the copper strip surface, which consumes a lot of energy. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a surface protection device for manganese copper strip. This device not only prevents oxidation of the manganese copper strip surface and improves its storage time and electrical stability, but also allows for the recycling of residual benzotriazole solution on the treated surface and reduces equipment energy consumption.

[0005] The purpose of this utility model is achieved by the following solution: a surface protection device for manganese copper strip, comprising an unwinding device, an immersion device, a water spraying device, an oven device, and a winding device arranged in sequence. An unwinding turning device is provided between the unwinding device and the immersion device. An air box device is provided between the water spraying device and the oven device. A tension roller device and a winding turning device are arranged in sequence between the oven device and the winding device. Both the unwinding turning device and the winding turning device are provided with symmetrical guide roller groups. A first limiting device is provided at the outlet of the unwinding turning device. A second limiting device is provided at the inlet of the air box device. A third limiting device is provided at the inlet of the winding turning device. A wiping device is provided in front of the second limiting device.

[0006] Preferably, the soaking device is equipped with a guide roller group in the water tank, the guide roller group including the inlet guide roller and the outlet guide roller, the water tank is provided with symmetrical liquid-driving rollers on the rear side, the water tank is provided with a solution heating box below the water tank, the solution heating box is provided with a first automatic temperature controller, and a first water pump is provided between the solution heating box and the water tank so that the solution is exchanged between the solution heating box and the water tank through the first water pump.

[0007] Preferably, the solution is a benzotriazole solution, the concentration of benzotriazole is 0.03%~0.06%, and the solution temperature is 50℃~60℃.

[0008] Preferably, the water spraying device is equipped with a spray nozzle and a heated water storage tank. The heated water storage tank is connected to the spray nozzle via a second water pump. The heated water storage tank is equipped with a second automatic temperature controller. The outlet of the water spraying device is equipped with symmetrical water-driving rollers.

[0009] Preferably, the temperature of the clean water in the heated water storage tank is 50℃~60℃.

[0010] Preferably, an air knife is provided inside the bellows device.

[0011] Preferably, the oven device is equipped with a heating air knife and a third automatic temperature controller, and the air temperature blown out by the heating air knife is 75℃~85℃.

[0012] Preferably, the tension roller device consists of rollers arranged in a triangle, with two rollers at the top and one roller at the bottom. The diameter of the three rollers is 37-41 cm. The distance between the centers of the two upper rollers is 55-65 cm, and the distance between the centers of the two upper rollers and the center of the lower roller is 45-55 cm.

[0013] Preferably, the wiping device is a square metal sheet with symmetrical top and bottom, and cotton cloth is wrapped around the metal sheet.

[0014] The beneficial effects of this manganese-copper strip surface protection equipment are as follows:

[0015] A surface protection device for manganese copper strip includes an unwinding device, an immersion device, a water spraying device, an oven device, and a winding device arranged in sequence. An unwinding deflector is provided between the unwinding device and the immersion device. An air box device is provided between the water spraying device and the oven device. A tension roller device and a winding deflector are arranged in sequence between the oven device and the winding device. Both the unwinding deflector and the winding deflector are provided with symmetrical guide roller groups. A first limiting device is provided at the outlet of the unwinding deflector. A second limiting device is provided at the inlet of the air box device. A third limiting device is provided at the inlet of the winding deflector. A wiping device is provided in front of the second limiting device.

[0016] By setting up unwinding and rewinding devices, the running height of the strip can be changed and the tension of the strip can be adjusted. The unwinding and rewinding devices can facilitate the smooth transition of the strip between different equipment and realize complex production line layouts. During the operation of the strip, uneven tension distribution can lead to local deformation of the strip, which in turn affects the surface quality. The unwinding and rewinding devices can also serve as auxiliary devices for tension adjustment.

[0017] By installing a wiping device, the drying efficiency of subsequent processes can be improved, and energy consumption can be saved.

[0018] By installing a bellows device, drying efficiency can be improved and energy consumption of the drying oven can be reduced. Using a bellows device to remove most of the moisture from the surface of the strip can speed up the production cycle. Relying solely on the drying oven to dry the strip results in a longer time for the liquid to remain on the surface, which can easily leave liquid residue marks and increase the workload of the drying oven. Increasing the temperature of the hot air will also increase energy consumption. By installing a bellows device, the workload of the drying oven can be reduced, the temperature of the hot air can be lowered, and the service life of the various components of the drying oven can be extended.

[0019] By setting up a tension roller device, wrinkling and loosening of the strip can be prevented, and the degree of stretching or compression of the strip during processing can be precisely controlled, thereby ensuring the stability of the strip dimensions. When the strip is surface treated, appropriate tension can make the strip surface fully and evenly contact the treatment medium, improving the surface quality after treatment.

[0020] By setting a first limit device, a second limit device, and a third limit device, the strip can be prevented from deviating. When the strip starts to deviate, the limit device can stop it from continuing to deviate from the normal operating track in time, avoiding the strip from violently colliding with the edge of the equipment or other obstacles, thereby preventing damage to the strip and reducing the risk of equipment damage due to strip collision.

[0021] Preferably, the soaking device is equipped with a guide roller group in the water tank, the guide roller group including an inlet guide roller and an outlet guide roller, and symmetrical liquid-driving rollers are arranged on the rear side of the water tank. A solution heating tank is arranged below the water tank, and a first automatic temperature controller is arranged in the solution heating tank. A first water pump is arranged between the solution heating tank and the water tank, so that the solution is exchanged between the solution heating tank and the water tank by the first water pump. The solution is a benzotriazole solution with a concentration of 0.03%~0.06% and a solution temperature of 50℃~60℃.

[0022] By setting up a liquid-removing roller, the residual benzotriazole solution on the surface of the treated strip can be recovered, reducing the frequency of benzotriazole solution replacement, lowering the purchase cost of chemical agents, reducing wastewater containing chemical agents, reducing pollutant emissions, and improving the cleaning effect of subsequent processes.

[0023] By setting up a solution heating tank to heat the benzotriazole solution, and then exchanging the benzotriazole solution in the solution heating tank and the water tank with the first water pump, local overheating of the benzotriazole solution in the water tank can be prevented, making the solution temperature more stable. Liquid exchange helps the liquid components to mix fully, prevents component stratification, and ensures the consistency of the strip surface treatment effect.

[0024] Preferably, the clean water spraying device is equipped with a spray nozzle and a heated water storage tank. The heated water storage tank is connected to the spray nozzle via a second water pump. The heated water storage tank is equipped with a second automatic temperature controller. The outlet of the clean water spraying device is equipped with symmetrical water-driving rollers. The temperature of the clean water in the heated water storage tank is 50℃~60℃.

[0025] Preferably, an air knife is provided inside the bellows device.

[0026] Preferably, the oven device is equipped with a heating air knife and a third automatic temperature controller, and the temperature of the air blown out by the heating air knife is 75℃~85℃.

[0027] Preferably, the tension roller device consists of rollers arranged in a triangle, with two rollers at the top and one roller at the bottom. The diameter of the three rollers is 37-41 cm. The distance between the centers of the two upper rollers is 55-65 cm, and the distance between the centers of the two upper rollers and the center of the lower roller is 45-55 cm.

[0028] Preferably, the wiping device is a square metal sheet with symmetrical top and bottom, and cotton cloth is wrapped around the metal sheet. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0030] See Figure 1 A surface protection device for manganese copper strip includes an unwinding device 1, an immersion device 3, a water spraying device 4, an oven device 6, and a winding device 9 arranged sequentially. An unwinding deflector 2 is provided between the unwinding device 1 and the immersion device 3. An air box device 5 is provided between the water spraying device 4 and the oven device 6. A tension roller device 7 and a winding deflector 8 are arranged sequentially between the oven device 6 and the winding device 9. Both the unwinding deflector 2 and the winding deflector 8 are equipped with symmetrically arranged guide roller groups. A first limiting device 10 is provided at the outlet of the unwinding deflector 2, and a second limiting device 12 is provided at the inlet of the air box device 5. The winding deflector 8... A third limiting device 13 is provided at the opening, and a wiping device 11 is provided in front of the second limiting device 12. The first limiting device 10, the second limiting device 12, and the third limiting device 13 are all guide rollers that can rotate freely and are vertically arranged on both sides of the strip. A guide roller group 3b is provided in the water tank 3a of the soaking device 3. The guide roller group 3b includes an inlet guide roller and an outlet guide roller. A liquid-driving roller 3c with upper and lower symmetrical arrangement is provided at the rear of the water tank 3a. When the strip passes through the two liquid-driving rollers 3c, the two liquid-driving rollers 3c are in close contact with the strip. A solution heating box 3d is provided below the water tank 3a. A first automatic temperature controller 3e is provided in the solution heating box 3d. A first water pump 3f is installed between the heating box 3d and the water tank 3a to exchange the solution between the heating box 3d and the water tank 3a. The solution is a benzotriazole solution with a concentration of 0.03% to 0.06% and a temperature of 50°C to 60°C. The clean water spraying device 4 is equipped with a spray nozzle 4a and a heated water storage tank 4e. The heated water storage tank 4e is connected to the spray nozzle 4a via a second water pump 4c. The heated water storage tank 4e is equipped with a second automatic temperature controller 4d. The outlet of the clean water spraying device 4 is equipped with symmetrically arranged water-driving rollers 4b. When the strip passes through the two water-driving rollers 4b, the two water-driving rollers 4b are in close contact with the strip. Contact state; the temperature of the clean water in the heating water storage tank 4e is 50℃~60℃; the air box device 5 is equipped with an air knife; the drying oven device 6 is equipped with a heating air knife and a third automatic temperature controller 6a, and the air temperature blown out by the heating air knife is 75℃~85℃; the tension roller device 7 is composed of rollers arranged in a triangle, with two rollers at the top and one roller at the bottom, the diameter of the three rollers is 37~41cm, the distance between the centers of the two upper rollers is 55~65cm, and the distance between the centers of the two upper rollers and the center of the lower roller is 45~55cm; the wiping device 11 is a square metal sheet with symmetrical upper and lower sides, and cotton cloth is wrapped on the metal sheet.

[0031] When performing surface protection operations on manganese-copper strips, follow these steps when using this device:

[0032] After being unwound by the unwinding device 1, the manganese copper strip is guided by the guide roller group of the unwinding guide roller device 2 and the guide roller group 3b of the soaking device 3 into the water tank 3a. The manganese copper strip undergoes surface treatment in the benzotriazole solution in the water tank 3a. After treatment, the surface of the manganese copper strip is removed and recovered by the liquid-removing roller 3c. The manganese copper strip then enters the clean water spraying device 4 and is rinsed with hot water by the spray nozzle 4a to remove the benzotriazole solution from the surface of the strip. The manganese copper strip then passes through the water-removing roller 4b to remove the hot water from the surface of the strip. After rinsing, the manganese copper strip is wiped dry by the wiping device 11 and then enters the air box device 5 for drying. After drying, the manganese copper strip enters the drying oven device 6 for complete drying. After drying, the manganese copper strip is tightened by the tension roller device 7 and guided by the winding guide roller device 8 into the winding device 9 for winding.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications made to the present utility model by those skilled in the art without departing from the spirit of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A surface protection device for manganese copper strip, comprising an unwinding device (1), an immersion device (3), a water spraying device (4), an oven device (6), and a winding device (9) arranged sequentially, characterized in that: An unwinding turning device (2) is provided between the unwinding device (1) and the soaking device (3). An air box device (5) is provided between the clean water spraying device (4) and the drying oven device (6). A tension roller device (7) and a winding turning device (8) are provided sequentially between the drying oven device (6) and the winding device (9). Both the unwinding turning device (2) and the winding turning device (8) are provided with symmetrical guide roller groups. A first limiting device (10) is provided at the outlet of the unwinding turning device (2). A second limiting device (12) is provided at the inlet of the air box device (5). A third limiting device (13) is provided at the inlet of the winding turning device (8). A wiping device (11) is provided on the front side of the second limiting device (12).

2. The surface protection device for manganese-copper strip according to claim 1, characterized in that: The soaking device (3) is equipped with a water tank (3a) and a guide roller group (3b) is provided inside the water tank (3a). The guide roller group (3b) includes an inlet guide roller and an outlet guide roller. A liquid-driving roller (3c) with symmetrical upper and lower sides is provided on the rear side of the water tank (3a). A solution heating box (3d) is provided below the water tank (3a). A first automatic temperature controller (3e) is provided in the solution heating box (3d). A first water pump (3f) is provided between the solution heating box (3d) and the water tank (3a) so that the solution can be exchanged between the solution heating box (3d) and the water tank (3a) through the first water pump (3f).

3. The surface protection device for manganese-copper strip according to claim 2, characterized in that: The solution is a benzotriazole solution with a concentration of 0.03% to 0.06% and a solution temperature of 50°C to 60°C.

4. The surface protection device for manganese-copper strip according to claim 1, characterized in that: The clean water spraying device (4) is equipped with a spray nozzle (4a) and a heated water storage tank (4e). The heated water storage tank (4e) is connected to the spray nozzle (4a) through a second water pump (4c). The heated water storage tank (4e) is equipped with a second automatic temperature controller (4d). The outlet of the clean water spraying device (4) is equipped with symmetrical water-driving rollers (4b).

5. The surface protection device for manganese-copper strip according to claim 4, characterized in that: The temperature of the clean water in the heated water storage tank (4e) is 50℃~60℃.

6. The surface protection device for manganese-copper strip according to claim 1, characterized in that: The bellows device (5) is equipped with an air knife.

7. The surface protection device for manganese-copper strip according to claim 1, characterized in that: The oven device (6) is equipped with a heating air knife and a third automatic temperature controller (6a), and the air temperature blown out by the heating air knife is 75℃~85℃.

8. The surface protection device for manganese-copper strip according to claim 1, characterized in that: The tension roller device (7) consists of rollers arranged in a triangle, with two rollers at the top and one roller at the bottom. The diameter of the three rollers is 37-41cm. The distance between the centers of the two upper rollers is 55-65cm, and the distance between the center of the two upper rollers and the center of the lower roller is 45-55cm.

9. The surface protection device for manganese-copper strip according to claim 1, characterized in that: The wiping device (11) is a square metal sheet that is symmetrical on the top and bottom, and cotton cloth is wrapped on the metal sheet.

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