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Tin-plated copper-coated brass wire and production method thereof and tin plating device

A production method and brass wire technology, applied in the field of wire and cable, can solve the problems of uneven coating thickness, rough appearance of tinned wire, poor adhesion, etc., and achieve simplified tinning steps, good appearance brightness, and high thickness uniform effect

Inactive Publication Date: 2013-09-25
ANHUI WANGDA COPPER DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Asbestos is usually used as the tin wiping and sizing tool on the current hot-dip tinning equipment, but the appearance of the produced tinning wire is not smooth, the thickness of the coating is uneven, the continuity and adhesion of the coating are not good

Method used

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  • Tin-plated copper-coated brass wire and production method thereof and tin plating device
  • Tin-plated copper-coated brass wire and production method thereof and tin plating device
  • Tin-plated copper-coated brass wire and production method thereof and tin plating device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 A tinned copper-clad brass wire as shown, which includes a brass wire (1), the brass (1) is coated with a copper layer (2), and the copper layer (2) is coated with The tin layer (3), the brass wire (1) is an alloy containing 68% copper and 32% zinc, and the cross section of the tinned copper-clad brass wire is approximately circular. The copper layer (2) coated on the outside of the brass wire (1) has a copper content of more than 99.98%.

Embodiment 2

[0031] The production method of tinned copper-clad brass wire comprises the following steps:

[0032] (1) Making copper-clad brass rods;

[0033] (2) Draw the above copper-clad copper rod through the wire drawing die of the wire drawing machine to obtain the required copper-clad brass wire. The area reduction rate of the wire drawing die is 10%, and the line speed is 2000 m / min. The compression angle of the mold polycrystalline diamond mold is 12°, the sizing length is 30%, and the formula of the lubricating liquid used in the drawing process is as follows: 10% modified castor oil, 12% modified sunflower oil, 10% sodium petroleum sulfonate, Refined machine oil 54%, isothiazolinone 0.1%, triethanolamine 2.5%, benzotriazole 0.4%, benzene-803%, caustic soda 8%. ;

[0034] (3) Clean the surface of the copper-clad brass wire obtained in step (2) before annealing with a wool-containing 85% felt to remove the drawing lubricant, oil beads, and dust attached to the surfac...

Embodiment 3

[0038] Such as image 3 As shown, the tinning equipment used in the production process of tinned copper-clad brass wire is hot-dip tinning equipment, which includes a transmission device for transmitting tinned copper-clad brass wire (4), a soldering bath (5), and an auxiliary Welding and clamping tool (6), tin cylinder (7), heating temperature control device (8), heat preservation and temperature-resistant material (9), also includes a tin wiping and sizing mold (10) arranged at the liquid level of the tin liquid And a fixing device (11) for fixing the tin wiping sizing mold (10) at the liquid level of the tin liquid, the fixing mold device can adjust the required angle to meet the required outer diameter of the tinned copper-clad copper wire , to ensure the out-of-roundness of the outer diameter of the tinned copper-clad copper wire and the deviation of the coating. The tin wiping sizing die (10) is composed of a die sleeve and a cylindrical through-hole die core made of di...

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Abstract

The invention discloses a tin-plated copper-coated brass wire and a production method thereof and a tin plating device used in a production process. The tin-plated copper-coated brass wire comprises a brass wire body, a copper layer and a tin layer, wherein the outside of the brass wire body is plated with the copper layer, and the outside of the copper layer is plated with the tin layer. The tin-plated copper-coated brass wire not only has weldability, vulcanization resistance, electrical conductivity, oxidation resistance and the like of round tin-plated soft copper wires, but also can save copper resources and is easy and convenient to install. A plating method of hot tinning is adopted in a tinning step, no waste water is generated or discharged in the whole process, and no pollution will be caused to the environment. Meanwhile, the method of hot tinning is adopted, and therefore the tin layer is better in adherence and continuity and more uniform in thickness. When a tin-coated sizing mold used for the tin-plated copper-coated brass wire is compared with asbestos used in the prior art, the steps of tinning are simplified, the plating layers are better in adherence and continuity and more uniform in thickness, and the photometric brightness of the appearance of the tin-plated copper-coated brass wire obtained in the production method is better.

Description

technical field [0001] The invention relates to a tinned copper-clad brass wire, a production method thereof and tinning equipment used in the production process, belonging to the field of electric wires and cables. Background technique [0002] Metal conductors are an important part of wires and cables, but there are many types of metal materials and their properties vary greatly. Wires and cables have high requirements on metal conductors in terms of electrical conductivity, thermal conductivity, ductility, and tensile properties, while copper is an important raw material for the wire and cable industry, and copper is the main strategic material. In addition, my country is a country with poor copper resources. Therefore, aluminum and copper-clad aluminum are gradually replacing copper as conductors in the wire and cable industry for production, but the resistivity, tensile strength and hardness of aluminum and copper-clad aluminum are much worse than copper, so It i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B5/02H01B13/00
Inventor 周小刚储刘生
Owner ANHUI WANGDA COPPER DEV
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