Copper-manganese alloy wire

Abstract

The utility model discloses a copper-manganese alloy wire, the surface of the alloy wire is coated with an organic coating, and the organic coating comprises a polyurethane coating and an epoxy resin coating from inside to outside. And the polyurethane coating and the epoxy resin coating are respectively white and black. The thicknesses of the polyurethane coating and the epoxy resin coating are respectively 100 to 150 microns and 100 to 150 microns. According to the utility model, the organic coating is coated, the organic coating comprises the polyurethane coating and the epoxy resin coating from inside to outside, the polyurethane coating is high in toughness, and the epoxy resin coating is better in mechanical property, so that the anti-oxidation purpose can be better realized. And the polyurethane coating and the epoxy resin coating are white and black respectively, so that when the organic coating is damaged, the damage can be directly observed, and the treatment is convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of bonding wires, and in particular to a copper-manganese alloy wire. Background Technology

[0002] Copper-manganese alloy wire uses copper as the base material and adds manganese as the main alloying element. It may also contain other elements such as nickel, silicon, aluminum, and iron. For example, 6J11 manganese copper wire contains about 75%-85% copper, 10%-15% manganese, 2%-5% nickel, and 0.5%-1.5% silicon.

[0003] Qualified copper-manganese alloy wires exposed to air for extended periods after use are prone to oxidation. Existing technologies often employ methods such as adding an antioxidant layer or adjusting chemical ratios to achieve oxidation resistance. For example, Chinese patent ZL201811104683.X discloses a method for preparing an antioxidant alloy copper wire, which achieves oxidation resistance. Similarly, Chinese patent ZL201920650712.6 describes an antioxidant alloy copper wire that prevents oxidation by installing an oxide film on its outer wall. While these existing technologies provide excellent oxidation resistance solutions, the oxide layer can be damaged during use due to wear and other factors. Failure to address this promptly can affect the resistance of that section of the alloy wire, impacting its usability. Maintaining the integrity of the alloy wire is particularly crucial in high-humidity, high-salinity, or industrially polluted environments. Utility Model Content

[0004] The purpose of this invention is to provide a copper-manganese alloy wire that solves the problem of difficulty in preventing oxidation of alloy wires used in high humidity, high salinity or industrial pollution environments.

[0005] According to one aspect of this disclosure, the following technical solution is provided: a copper-manganese alloy wire, wherein the surface of the alloy wire is coated with an organic coating, the organic coating consisting of a polyurethane coating and an epoxy resin coating from the inside out.

[0006] Furthermore, the polyurethane coating and the epoxy resin coating are white and black, respectively.

[0007] Furthermore, the thicknesses of the polyurethane coating and the epoxy resin coating are 100-150 μm and 100-150 μm, respectively.

[0008] The technical effects and advantages of this utility model are as follows:

[0009] (1) This utility model uses an organic coating, which consists of a polyurethane coating and an epoxy resin coating from the inside out. The polyurethane coating has high toughness, while the epoxy resin coating has better mechanical properties, thus achieving better anti-oxidation. The polyurethane coating is white and the epoxy resin coating is black, respectively, so that damage to the organic coating can be directly observed and easily handled. Attached Figure Description

[0010] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0011] Figure 1 This is a schematic diagram of a copper-manganese alloy wire according to one embodiment of the present disclosure.

[0012] Figure 2 This is a schematic diagram of a copper-manganese alloy wire wound inside a package according to one embodiment of the present disclosure.

[0013] Figure 3 This is a side view of a copper-manganese alloy wire package according to one embodiment of the present disclosure.

[0014] The specific labels in the attached figures are as follows:

[0015] Polyurethane coating-1, epoxy resin coating-2, winding shaft-3, side plate-4, stop bar-5, bayonet-6. Detailed Implementation

[0016] Example 1:

[0017] As shown in the attached figures, this disclosure discloses a copper-manganese alloy wire. The surface of the alloy wire is coated with an organic coating, which consists of a polyurethane coating 1 and an epoxy resin coating 2 from the inside out. The epoxy resin coating 2 has good corrosion resistance and mechanical properties, and its placement on the outer side provides better wear resistance. The polyurethane coating 1 has excellent flexibility, and its resistance to breakage is reduced due to the complex stress on the inner side. This alloy wire can perform very well in high-humidity, high-salinity, or industrially polluted environments, such as those used in power facilities in coastal areas. In this embodiment, a polyurethane coating 1 and an epoxy resin coating 2 are used. Compared to previous coating thicknesses, the use of a more resilient polyurethane coating 1 on the inner side ensures better overall performance. The thicknesses of the polyurethane coating 2 and the epoxy resin coating 3 are 100-150 μm and 100-150 μm, respectively.

[0018] Example 2:

[0019] In practical use, to prevent damage to the coating caused by improper preservation of the alloy wire after unpacking, and even destruction of the anti-oxidation layer, color additives are added to the polyurethane coating 1 and epoxy resin coating 2 respectively, so that the polyurethane coating 1 and epoxy resin coating 2 form two colors with a large color difference. In this embodiment, the polyurethane coating 1 and epoxy resin coating 2 are white and black respectively. The black epoxy resin coating 2 can block sunlight and has a better protective effect. When the polyurethane coating 1 and epoxy resin coating 2 are worn and damaged, the colors can be clearly displayed, making it easy to judge.

[0020] Example 3:

[0021] This embodiment provides a packaging structure for the alloy wire, specifically including a winding shaft 3, side discs 4, and baffles 5. The side discs 4 are fixedly disposed at both ends of the winding shaft 3. The alloy wire is wound on the winding shaft 3 and confined between the two side discs 4. The baffles 5 are made of rubber and are fixedly adhered to the periphery of the side discs 4. The baffles 5 have multiple slots 6. The width of the baffles 5 is greater than the thickness of the side discs 4 so that the baffles 5 extends between the two side discs 4, and the slots 6 are located between the two side discs 4.

[0022] Example 4:

[0023] In this embodiment, after the polyurethane coating 1 is applied, appropriate surface treatment is required to improve adhesion and compatibility. For example, the existing coating surface can be sanded and cleaned to increase surface roughness and activity. Then, a suitable intermediate transition layer or primer can be selected to improve the bonding between the two coatings. Existing methods include mechanical sanding, using sandpaper, grinding wheels, or grinding machines to sand the existing coating surface. The degree of sanding should be moderate, ensuring a certain surface roughness to increase surface area and mechanical interlocking points, but avoiding excessive sanding that would result in an overly thin coating or damage to the substrate. Chemical treatment involves selecting appropriate chemical reagents to treat the surface based on the materials of the coating and the substrate. For example, for non-metallic substrates such as plastics, organic solvents (such as acetone, toluene, etc.) or specific surface treatment agents can be used for wiping or immersion. Plasma treatment utilizes plasma generated by plasma equipment to treat the coating surface. In a vacuum environment, plasma is generated by exciting gas through radio frequency, microwave, or other methods, exposing the coating surface to the plasma for a period of time. Flame treatment uses a high-temperature flame to briefly bake the coating surface. Typically, a gas-fired spray gun or similar device is used to evenly spray flames onto the coating surface, causing the surface temperature to rise rapidly. After the polyurethane coating 1 is treated, the epoxy resin coating 2 is then applied.

[0024] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. A copper-manganese alloy wire, characterized in that, The alloy wire surface is coated with an organic coating, which consists of a polyurethane coating and an epoxy resin coating from the inside out.

2. The copper-manganese alloy wire according to claim 1, characterized in that: The polyurethane coating and epoxy resin coating are white and black, respectively.

3. The copper-manganese alloy wire according to claim 2, characterized in that: The thicknesses of the polyurethane coating and the epoxy resin coating are 100-150 μm and 100-150 μm, respectively.

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