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3j1 Removal method of oxide skin on the surface of the part of the tie wire

A surface oxidation and scale technology, applied in the field of surface treatment, can solve the problems of damaging the base material, affecting the quality of electroplating, difficult to handle, etc., and achieve the effect of improving the removal effect, avoiding damage to the base material, and ensuring the quality of electroplating

Inactive Publication Date: 2019-11-05
BEIJING SHUGUANG AERO ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the oxide skin is not completely cleaned before plating, it will seriously affect the quality of the plating. If it is light, the surface coating will blister, and if it is heavy, the parts will be brittle.
General surface treatment methods are difficult to deal with
The current method is to use hydrochloric acid corrosion, the removal effect is very poor, and this method will damage the base material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2、02

[0027] Example 2, 02 batches of binding wire, material 3J1, 2mm thick, 35mm long, with heat-treated oxide scales on the surface.

[0028] The steps to remove surface oxide scale are as follows:

[0029] 1. Prepare the corrosion solution: the volume ratio of each component of the corrosion solution to the corrosion solution is: H2SO4, 25%; HNO3, 5%; HCl, 8%; the balance is deionized water; the specific gravity of H2SO4 is 1.84, and the specific gravity of HNO3 The specific gravity of HCl is 1.42, and the specific gravity of HCl is 1.19; weigh the above raw materials, first put deionized water in the container, slowly add it into the deionized water in the order of H2SO4, HNO3, and HCl, and stir for 30 seconds after each acid solution is added to obtain a corrosion solution ;

[0030] 2. 3J1 wire tie degreasing: wash with acetone solution to remove the oil on the surface of the tie wire;

[0031] 3. Blow dry: wash the degreased 3J1 thread with clean water and dry it with compr...

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PUM

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Abstract

The invention belongs to a surface treatment technique, and relates to a method for removing the oxide skin from the surface of a workpiece of a 3J1 bundle. The method for removing the oxide skin fromthe surface comprises the following steps of preparing an etching solution; degreasing the 3J1 bundle; blow-drying; removing the oxide skin; cleaning; and inspecting. The invention provides the method for removing the oxide skin from the surface of the workpiece of the 3J1 bundle, the problem of removing the oxide skin from the 3J1 bundle is solved, the removal effect is increased, base materialsare prevented from being damaged, and the electroplating quality is guaranteed.

Description

technical field [0001] The invention belongs to the surface treatment technology, and relates to a method for removing oxide skin on the surface of a 3J1 threaded workpiece. Background technique [0002] The steel tie wire of 3J1 material has a thick scale after heat treatment, which must be removed. If the oxide skin is not completely cleaned before plating, the quality of the plating will be seriously affected. If it is light, the surface coating will blister, and if it is serious, the parts will be brittle. General surface treatment methods are difficult to deal with. The current method is to use hydrochloric acid corrosion, the removal effect is very poor, and this method will damage the base material. Contents of the invention [0003] The purpose of the present invention is: to propose a method for removing oxide skin on the surface of 3J1 wire-bonded parts, so as to solve the difficult problem of removing oxide skin on 3J1 wire-bonded wire, improve the removal eff...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23F1/28
CPCC23F1/28
Inventor 李忠山王海龙罗志勇
Owner BEIJING SHUGUANG AERO ELECTRICAL
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