Aluminum alloy wire surface modification processing line

Abstract

The utility model relates to the field of wire rod processing, and discloses an aluminum alloy wire rod surface modification processing line. The aluminum alloy wire surface modification processing line comprises a control device, a pay-off device, a first wire storage device, a decontamination tank, an alkali activation tank, a deoxidation tank, a zinc dipping tank, a replacement tank, a first electrolytic tank, a dryer and a take-up device, and the pay-off device, the first wire storage device, the decontamination tank, the alkali activation tank, the deoxidation tank, the zinc dipping tank, the replacement tank, the first electrolytic tank, the dryer and the take-up device are sequentially connected with the control device. Through the arrangement of the zinc dipping tank, the replacement tank and the first electrolytic tank, the problem that the binding force of the coating on the surface of the aluminum alloy wire is low can be solved, the binding force between the coating of the aluminum alloy wire and the surface of the wire is increased, and the surface of the aluminum alloy wire is protected. And through chemical plating and electrolytic plating of the replacement tank and the first electrolytic tank, the uniformity and the thickness of a plating layer are improved, and the stability and the reliability of wire surface plating treatment are improved.

Description

Technical Field

[0001] The utility model relates to the field of wire material processing, in particular to a surface modification processing line for aluminum alloy wire materials. Background Art

[0002] Aluminum alloy has the advantages of low density and high strength and is widely used in various industries. However, the surface of aluminum alloy is easily oxidized and corroded, resulting in its performance being damaged. This problem can be solved by adding a coating to the surface. For example, the nickel plating layer can effectively improve the hardness, corrosion resistance, weldability and other functions of the aluminum alloy. However, the surface of the aluminum alloy is not easy to be directly catalyzed, which is not conducive to the adhesion and uniformity of the coating, that is, the bonding force between the coating and the aluminum alloy surface is low, and the uniformity and thickness of the coating cannot be guaranteed. With the development of the new energy vehicle industry, in view of the low cost of aluminum alloy and its excellent physical properties such as low density and high strength, the demand for aluminum alloy wire is becoming more and more vigorous. How to effectively and stably modify the surface of aluminum alloy wire to meet market demand is becoming more and more important. Utility Model Content

[0003] The utility model aims to provide an aluminum alloy wire surface modification processing line, so that the aluminum alloy wire can obtain an effective and stable coating for surface modification.

[0004] In order to solve the above technical problems, the implementation method of the utility model provides a technical solution as follows:

[0005] A surface modification processing line for aluminum alloy wires comprises a control device and a wire unwinder, a first wire storage device, a decontamination tank, an alkali activation tank, a deoxidation tank, a zinc immersion tank, a replacement tank, a first electrolytic tank, a dryer, and a wire take-up device which are sequentially connected to the control device. The control device can adjust the wire transmission speed and the temperatures of the decontamination tank, the alkali activation tank, the deoxidation tank, the zinc immersion tank, the replacement tank, the first electrolytic tank, and the dryer.

[0006] Furthermore, a first rinsing tank is provided between the decontamination tank and the alkaline activation tank, a second rinsing tank is provided between the alkaline activation tank and the deoxidation tank, a third rinsing tank is provided between the deoxidation tank and the zinc immersion tank, a fourth rinsing tank is provided between the zinc immersion tank and the replacement tank, and a fifth rinsing tank is provided between the replacement tank and the first electrolytic tank.

[0007] Furthermore, a first water washing tank is provided between the first electrolytic tank and the dryer.

[0008] Furthermore, a second wire storage device is provided between the zinc dipping tank and the replacement tank.

[0009] Furthermore, a third wire storage device is provided between the replacement tank and the first electrolytic tank.

[0010] Furthermore, a second electrolytic tank is provided between the first electrolytic tank and the dryer, and a second water washing tank is provided between the second electrolytic tank and the dryer.

[0011] Furthermore, a fourth wire storage device is provided between the first electrolytic tank and the second electrolytic tank.

[0012] Furthermore, the first rinsing tank, the second rinsing tank, the third rinsing tank, the fourth rinsing tank, and the fifth rinsing tank are provided with at least two solution tanks isolated from each other.

[0013] Furthermore, the first water washing tank includes a solution tank and a blowing device fixedly connected to the solution tank.

[0014] Compared with the prior art, the surface modification processing device for aluminum alloy wire provided by the utility model can overcome the problem of low bonding strength of the surface coating of the aluminum alloy wire by setting a zinc immersion tank, a replacement tank and a first electrolytic tank, increase the bonding strength between the aluminum alloy wire coating and the wire surface, and improve the uniformity and thickness of the coating by setting the chemical plating and electrolytic plating of the replacement tank and the first electrolytic tank, thereby improving the stability and reliability of the wire surface coating treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0016] Figure 1 This is a structural diagram of an aluminum alloy wire surface modification processing line in one embodiment of the utility model;

[0017] Figure 2 It is a structural block diagram of an aluminum alloy wire surface modification processing line in another embodiment of the utility model.

[0018] Explanation of the reference numerals: 1. control device; 2. wire unwinder; 3. first wire storage device; 4. decontamination tank; 5. alkali activation tank; 6. deoxidation tank; 7. zinc immersion tank; 8. replacement tank; 9. first electrolytic tank; 10. dryer; 11. wire take-up device; 12. first rinsing tank; 13. second rinsing tank; 14. third rinsing tank; 15. fourth rinsing tank; 16. fifth rinsing tank; 17. first water washing tank; 18. second wire storage device; 19. third wire storage device. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the utility model clearer, the various embodiments of the utility model will be described in detail below with reference to the accompanying drawings. However, it can be understood by those skilled in the art that in the various embodiments of the utility model, many technical details are provided in order to enable readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical schemes claimed for protection in the claims of the present application can be implemented.

[0020] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0021] like Figure 1-2 As shown, in one embodiment, a surface modification processing line for an aluminum alloy wire comprises a control device 1 and a wire unwinder 2, a first wire storage device 3, a decontamination tank 4, an alkali activation tank 5, a deoxidation tank 6, a zinc immersion tank 7, a replacement tank 8, a first electrolytic tank 9, a dryer 10, and a wire take-up device 11 connected to the control device 1 in sequence, wherein the control device 1 is capable of adjusting the wire transmission speed and the temperature of the decontamination tank 4, the alkali activation tank 5, the deoxidation tank 6, the zinc immersion tank 7, the replacement tank 8, the first electrolytic tank 9, and the dryer 10. After being released from the pay-off 2, the aluminum alloy wire is wound on the winding wheel of the first wire storage 3, and is guided by the guide wheel of the first wire storage 3 to be transmitted to the decontamination tank 4 to remove the surface oil stains. After passing through the decontamination tank 4, the wire enters the alkali activation tank 5 to remove the surface residue, and then enters the deoxidation tank 6 to remove the oxide layer on the surface of the wire, and then enters the zinc immersion tank 7 to form a zinc layer on the surface of the wire. After entering the replacement tank 8, the wire reacts chemically with the metal salt solution to form a metal layer on the surface of the wire, and then the wire is electrolytically plated with a metal layer through the first electrolytic tank 9. The metal layer formed by the chemical degree in the replacement tank 8 and the electrolytically plated metal layer in the first electrolytic tank 9 are the same metal. Then the wire is dried by the dryer 10 and collected by the wire take-up 11.

[0022] The wire unwinder 2 is placed at the front end of the processing line, and is used to support and release the aluminum alloy wire. The wire unwinder 2 includes a bracket, and a pair of rotating shafts are symmetrically arranged on the bracket. The aluminum alloy wire is arranged on the rotating shafts through a winding disk. The wire unwinder 2 also includes a motor, and the motor can drive the rotating shaft to rotate, thereby driving the winding disk to rotate and release the aluminum alloy wire. The wire take-up device 11 is arranged at the end of the processing line opposite to the wire unwinder 2, and is used to collect the wire after processing.

[0023] The first wire storage device 3 includes a winding wheel, which is used to store wires. A lifting mechanism is connected to the winding wheel, and the winding wheel can rise or fall under the drive of the lifting mechanism. It also includes a plurality of guide wheels for wire output, and the guide wheels are used to guide the wires. When replacing the winding reel on the unwinder 2, the wire on the wire storage device can be released to ensure that the processing line does not need to stop waiting for materials. The tension of the wire can be adjusted by the lifting movement of the lifting mechanism to prevent the wire from getting stuck or breaking during the wire processing process.

[0024] The decontamination tank 4 is provided with a threading hole for the wire to pass through, and the decontamination tank 4 includes three chambers. The chambers on both sides are provided with guide wheels and water replenishing devices. The middle reaction tank is provided with partitions and liquid input ports on both sides. The decontamination tank 4 includes at least one of a chemical degreasing tank and an electrolytic degreasing tank, and an acidic solution is used in the decontamination tank 4.

[0025] The alkali activation tank 5 is provided with a threading hole and a guide wheel for the wire to pass through. The alkali activation tank 5 uses an alkaline solution to remove the residue on the surface of the wire. After the wire passes through the decontamination tank 4, the acid corrodes the surface of the wire, often causing some residues to adhere to the surface, forming residues, and reducing the bonding force between the subsequent plated metal and the wire. Therefore, the wire needs to be surface activated by the alkali activation tank 5 to remove the surface residue.

[0026] The deoxidation tank 6 is used to remove the oxide layer on the surface of the wire by chemical reaction.

[0027] The zinc bath 7 is provided with zinc water, and a zinc layer is formed on the surface of the aluminum alloy wire through a chemical replacement reaction between the zinc water and the aluminum alloy wire. The zinc layer can improve the surface bonding force between the surface of the aluminum alloy wire and the subsequent coating, forming a more stable coating.

[0028] The replacement tank 8 is provided with a solution tank, in which a metal salt solution is provided, and a winding wheel and a guide wheel are provided in the solution tank. The winding wheel is a multi-turn structure, which can increase the time of the wire in the solution so that the chemical reaction time of the chemical metal plating is more sufficient. Since zinc is easier to catalyze than aluminum, the zinc layer on the surface of the wire is beneficial to the subsequent chemical deposition reaction of the metal plating, thereby increasing the bonding force between the metal plating and the surface of the wire.

[0029] The first electrolytic cell 9 is used for electrochemical reaction plating of a functional metal layer on the surface of the wire, with the wire serving as the cathode. A pure metal ball is provided in the first electrolytic cell 9, serving as an anode material. A metal salt solution is provided in the first electrolytic cell 9, and a coating is formed on the surface of the wire through the directional migration of metal ions under the action of an electric field.

[0030] In one embodiment, a first rinsing tank 12 is provided between the decontamination tank 4 and the alkaline activation tank 5, a second rinsing tank 13 is provided between the alkaline activation tank 5 and the deoxidation tank 6, a third rinsing tank 14 is provided between the deoxidation tank 6 and the zinc immersion tank 7, a fourth rinsing tank 15 is provided between the zinc immersion tank 7 and the replacement tank 8, and a fifth rinsing tank 16 is provided between the replacement tank 8 and the first electrolytic tank 9.

[0031] The first rinsing tank 12 includes at least two mutually isolated solution tanks, and the tank wall of the solution tank is provided with a threading hole for the wire to pass through. The solution tank is provided with a guide wheel, and the guide wheel is used to support and guide the wire. The first rinsing tank 12 is used to clean the liquid and impurities remaining on the surface of the wire after passing through the decontamination tank 4. The pure water used in the first rinsing tank 12 is used to rinse the wire. Preferably, in order to save resources, the liquid in the rear rinsing tank can circulate to the front rinsing tank along the direction of wire transmission. In an exemplary example, the first rinsing tank 12 includes 4 rinsing tanks, forming a 4-stage water washing to increase the cleaning effect of the wire surface. The second rinsing tank 13, the third rinsing tank 14, the fourth rinsing tank 15, and the fifth rinsing tank 16 have the same structure as the first rinsing tank 12. The second rinsing tank 13 is used for cleaning the surface of the wire after passing through the de-alkali activation tank 5, the third rinsing tank 14 is used for cleaning the surface of the wire after passing through the deoxidation tank 6, the fourth rinsing tank 15 is used for cleaning the surface of the wire after passing through the zinc immersion tank 7, and the fifth rinsing tank 16 is used for cleaning the surface of the wire after passing through the replacement tank 8.

[0032] In one embodiment, a first water washing tank 17 is further included, and the first water washing tank 17 is arranged between the first electrolytic tank 9 and the dryer 10. The first water washing tank 17 is provided with a plurality of mutually isolated solution tanks, and each solution tank is provided with a corresponding blowing device, and the solution tank is provided with circulating pure water. After the wire is washed in the solution tank and guided out by the guide wheel, the blowing device dries the wire, thereby reducing the liquid residue on the surface of the wire and increasing the cleaning effect.

[0033] In one embodiment, a second wire storage device 18 and a third wire storage device 19 are further included. The second wire storage device 18 is arranged between the zinc immersion tank 7 and the replacement tank 8, and the third wire storage device 19 is arranged between the replacement tank 8 and the first electrolytic tank 9. The replacement tank 8 is a chemical metal plating reaction, and the time for the wire to pass through the replacement tank 8 needs to be controlled according to the process requirements. In order to ensure the effect of the metal plating, a second wire storage device 18 is added between the zinc immersion tank 7 and the replacement tank 8. After the wire passes through the zinc immersion tank 7, it is guided to the replacement tank 8 through the second wire storage device 18. The second wire storage device 18 can be used to adjust the pressure and speed of the wire, and store the wire within a quantitative range to ensure the stability of the production process and the continuity of the processing. The third wire storage device 19 is arranged between the replacement tank 8 and the first electrolytic tank 9. After the wire passes through the replacement tank 8, it is guided to the first electrolytic tank 9 through the third wire storage device 19. The third wire storage device 19 can be used to adjust the pressure and speed of the wire, and store the wire within a quantitative range to ensure the stability of the production process and the continuity of the processing.

[0034] In one embodiment, a second electrolytic tank and a second water washing tank are also included. The second electrolytic tank is arranged between the first electrolytic tank 9 and the dryer 10. The second electrolytic tank is used for multi-layer surface treatment of wire rods. For example, tin plating, copper plating, nickel plating, silver plating, gold plating, alloy plating, etc. can be performed on the basis of electroplating the functional metal layer in the first electrolytic tank 9. A second water washing tank is arranged between the second electrolytic tank and the dryer 10. The second water washing tank is similar in structure to the first water washing tank 17. The second water washing tank is used for rinsing and drying the surface of the wire rods. After being rinsed and dried in the water washing tank, the wire rods enter the dryer 10 for surface drying treatment. After passing through the dryer 10, the wire rods are recycled by the wire take-up device 11.

[0035] Compared with the prior art, the surface modification processing device for aluminum alloy wire provided by the utility model can overcome the problem of low bonding strength of the surface coating of the aluminum alloy wire by setting a zinc immersion tank, a replacement tank and a first electrolytic tank, increase the bonding strength between the aluminum alloy wire coating and the wire surface, and improve the uniformity and thickness of the coating by setting the replacement tank and the first electrolytic tank, thereby improving the stability and reliability of the wire surface coating treatment.

[0036] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present invention, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A surface modification processing line for aluminum alloy wire, characterized in that: The invention comprises a control device and a wire unwinder, a first wire storage device, a decontamination tank, an alkali activation tank, a deoxidation tank, a zinc immersion tank, a replacement tank, a first electrolytic tank, a dryer and a wire take-up device which are sequentially connected to the control device. The control device can adjust the wire transmission speed and the temperature of the decontamination tank, the alkali activation tank, the deoxidation tank, the zinc immersion tank, the replacement tank, the first electrolytic tank and the dryer.

2. The aluminum alloy wire surface modification processing line according to claim 1, characterized in that: A first rinsing tank is provided between the decontamination tank and the alkali activation tank, a second rinsing tank is provided between the alkali activation tank and the deoxidation tank, a third rinsing tank is provided between the deoxidation tank and the zinc immersion tank, a fourth rinsing tank is provided between the zinc immersion tank and the replacement tank, and a fifth rinsing tank is provided between the replacement tank and the first electrolytic tank.

3. The aluminum alloy wire surface modification processing line according to claim 1, characterized in that: A first water washing tank is provided between the first electrolytic tank and the dryer.

4. The aluminum alloy wire surface modification processing line according to claim 1, characterized in that: A second wire storage device is provided between the zinc dipping tank and the replacement tank.

5. The aluminum alloy wire surface modification processing line according to claim 1, characterized in that: A third wire storage device is provided between the replacement tank and the first electrolytic tank.

6. The aluminum alloy wire surface modification processing line according to claim 1, characterized in that: A second electrolytic tank is provided between the first electrolytic tank and the dryer, and a second water washing tank is provided between the second electrolytic tank and the dryer.

7. The aluminum alloy wire surface modification processing line according to claim 6, characterized in that: A fourth wire storage device is provided between the first electrolytic tank and the second electrolytic tank.

8. The aluminum alloy wire surface modification processing line according to claim 2, characterized in that: The first rinsing tank, the second rinsing tank, the third rinsing tank, the fourth rinsing tank, and the fifth rinsing tank are provided with at least two solution tanks isolated from each other.

9. The aluminum alloy wire surface modification processing line according to claim 3, characterized in that: The first water washing tank comprises a solution tank and a blowing device fixedly connected to the solution tank.

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