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A kind of production process of tinned copper wire for preventing tinned layer from falling off

A technology of tinned copper wire and production process, applied in hot-dip plating process, metal material coating process, coating, etc., can solve the problem of affecting the use effect and service life of products, affecting the production quality of tinned copper wire, tinning Poor layer adhesion and other problems to achieve the effect of avoiding copper exposure, uniform tin plating without falling off, and good conductivity

Active Publication Date: 2022-07-05
江西泰和百盛实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Tinned copper wire has a variety of excellent characteristics. Its processing technology is simple, but there are many processes and procedures, and each link is not properly controlled. For example, the surface of copper wire is oxidized during the production process, the roughness is not enough, and the content of tin is low. The tin-plated layer has poor adhesion, easy to fall off, etc., which affects the use effect and service life of the product, thus affecting the production quality of tin-plated copper wire

Method used

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  • A kind of production process of tinned copper wire for preventing tinned layer from falling off

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Effect test

Embodiment 1

[0027] A production process of tin-plated copper wire that avoids the tin-plated layer falling off. In terms of mass percentage, the copper content of the copper wire is 99.91-99.99%, and the tin content of the tin-plated layer is greater than 99.99%. The production process is completed in the early stage of preparations For example, the replacement of sandpaper, the preparation of acid solution, the setting of hot water temperature, and the setting of drying oven temperature are all completed in a space filled with nitrogen, which includes the following steps:

[0028] S1. Pay-off: Select the copper wire with smooth surface and pass it through the magnetic powder tension pay-off machine to pay off the wire to get the copper wire;

[0029] S2. Grinding: pass the copper wire in step S1 through a grinding machine equipped with 70-mesh sandpaper to grind the surface;

[0030] S3. Pickling: after the copper wire polished in step S2 is cleaned in a pickling tank equipped with pickl...

Embodiment 2

[0038] A production process of tin-plated copper wire that avoids the tin-plated layer falling off. In terms of mass percentage, the copper content of the copper wire is 99.91-99.99%, and the tin content of the tin-plated layer is greater than 99.99%. The production process is completed in the early stage of preparations For example, the replacement of sandpaper, the preparation of acid solution, the setting of hot water temperature, and the setting of drying oven temperature are all completed in a space filled with nitrogen, which includes the following steps:

[0039] S1. Pay-off: Select the copper wire with smooth surface and pass it through the magnetic powder tension pay-off machine to pay off the wire to get the copper wire;

[0040] S2. Grinding: pass the copper wire in step S1 through a grinding machine equipped with 75-grit sandpaper to grind the surface;

[0041] S3. Pickling: after the copper wire polished in step S2 is cleaned in a pickling tank equipped with pickl...

Embodiment 3

[0049] A production process of tin-plated copper wire that avoids the tin-plated layer from falling off. In terms of mass percentage, the copper content of the copper wire is 99.91-99.99%, and the tin content of the tin-plated layer is greater than 99.99%. For example, the replacement of sandpaper, the preparation of acid solution, the setting of hot water temperature, and the setting of drying oven temperature are all completed in a space filled with nitrogen, which includes the following steps:

[0050] S1. Pay-off: Select the copper wire with smooth surface and pass it through the magnetic powder tension pay-off machine to pay off the wire to get the copper wire;

[0051] S2. Grinding: pass the copper wire in step S1 through a grinding machine equipped with 80-mesh sandpaper to grind the surface;

[0052] S3. Pickling: after the copper wire polished in step S2 is cleaned in a pickling tank equipped with pickling solution, the acid solution is wiped off;

[0053] S4. Washin...

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Abstract

The invention belongs to the technical field of tin-plated copper wire production technology, and in particular relates to a production process of tin-plated copper wire for preventing the tin-plated layer from falling off. : Pay-off, grinding, pickling, water washing, drying, tin plating, drying and curing, wire take-up. The production process of the invention is completed in a space filled with nitrogen, which can effectively prevent the surface of the copper wire from being oxidized, the roughness of the surface of the copper wire can be increased by grinding the copper wire, and the surface of the copper wire can be activated by pickling, which is beneficial to the subsequent tin plating , which can prevent falling off. At the same time, three times of tin plating and two times of pressure are used to galvanize, which is not only conducive to the adhesion of tin, but also avoids the occurrence of copper exposure. The tin layer can be cured by red light baking and ultraviolet light curing. More stable, the prepared tinned copper wire is easy to weld, has good electrical conductivity, and the tinned copper wire is uniform and does not fall off, which improves the production quality and service life of the tinned copper wire.

Description

technical field [0001] The invention belongs to the technical field of tin-plated copper wire production technology, and particularly relates to a production process of tin-plated copper wire for preventing the tin-plated layer from falling off. Background technique [0002] Tinned copper wire refers to a copper wire with a thin layer of metallic tin plated on the surface of the copper wire. The tinned copper wire is relatively soft and has good electrical conductivity. Compared with bare copper wire, its corrosion resistance and oxidation resistance are stronger, which can greatly extend the service life of weak current cables. Tin plating of copper wires can prevent the insulating rubber from sticking, the wire core becomes black and brittle, and improves its solderability. Tinned copper wire is mainly used for rubber-insulated mining cables, flexible wires, flexible cables and marine cables, etc. as conductive cores, as well as for outer braiding and brush wires of cable...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C2/08C23C2/38C23C2/26C23C2/02C23G1/10
CPCC23C2/08C23C2/38C23C2/26C23C2/02C23G1/103
Inventor 蒋福南史喜红肖连连唐小华
Owner 江西泰和百盛实业有限公司
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