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Surface treatment process of magnesium alloy product

A technology of surface treatment and surface treatment agent, applied in metal material coating process, electrolytic coating, electrophoretic plating and other directions, can solve the problems of easy corrosion of magnesium alloys and poor corrosion resistance of magnesium, and achieve the advantages of not easy slag sedimentation, low cost, The effect of bath stabilization

Inactive Publication Date: 2014-09-10
张家港沙龙精密管业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, magnesium has the characteristics of poor corrosion resistance, and magnesium alloys have the disadvantage of being easily corroded during application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A surface treatment process for magnesium alloy products, the surface treatment process has the following process steps:

[0018] (1) adopt the aqueous solution cleaning of magnesium alloy degreasing powder to remove the oil stain on the magnesium alloy workpiece surface;

[0019] (2) adopting the aqueous solution cleaning of magnesium alloy pickling agent to remove the oxide of magnesium alloy workpiece surface;

[0020] (3) Magnesium alloy workpiece is processed in surface treatment agent solution, wherein, by weight, the formula component of described surface treatment agent solution is: zinc oxide 13.5 parts, phosphoric acid 11 parts, sodium fluoride 4.2 parts , 10.5 parts of sodium nitrate, 1.7 parts of ammonium molybdate, 5.5 parts of ammonium sulfate, 4 parts of cetyl sodium sulfate, 75 parts of deionized water, and the processing time at room temperature is 15-20min;

[0021] (4) Cathodic electrophoretic coating is carried out to the magnesium alloy workpiece, ...

Embodiment 2

[0025] A surface treatment process for magnesium alloy products, the surface treatment process has the following process steps:

[0026] (1) adopt the aqueous solution cleaning of magnesium alloy degreasing powder to remove the oil stain on the magnesium alloy workpiece surface;

[0027] (2) adopting the aqueous solution cleaning of magnesium alloy pickling agent to remove the oxide of magnesium alloy workpiece surface;

[0028] (3) Magnesium alloy workpiece is processed in the surface treatment agent solution, wherein, by weight, the formula components of the surface treatment agent solution are: 10 parts of zinc oxide, 8 parts of phosphoric acid, 3 parts of sodium fluoride , 10.5 parts of sodium nitrate, 1.7 parts of ammonium molybdate, 5 parts of ammonium sulfate, 4 parts of sodium lauryl sulfate, 62 parts of deionized water, and the processing time at room temperature is 15-20min;

[0029] (4) Cathodic electrophoretic coating is carried out to the magnesium alloy workpiec...

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Abstract

The invention relates to the technical field of metal material surface treatment, and particularly relates to a surface treatment process of a magnesium alloy product. The surface treatment process comprises the following processing steps: (1) removing greasy dirt on the surface of a magnesium alloy workpiece; (2) removing an oxide on the surface of the magnesium alloy workpiece; (3) processing the magnesium alloy workpiece in a surface treating agent solution; (4) carrying out cathode electrophoretic painting on the magnesium alloy workpiece; (5) solidifying and baking the workpiece after electrophoretic painting. The component formula of the treating agent in the surface treatment process of the magnesium alloy product provided by the technical scheme disclosed by the invention is wide in raw material source, low in cost, stable in bath solution, not easy in generation of sediments, safe and environment-friendly in component in the use procedure, the late solderability of the magnesium alloy metal product is not affected, and the surface treatment process of the magnesium alloy product is simple, applicable to treatment of the surface of the magnesium alloy metal product, convenient and practical, and applicable to popularization and application.

Description

technical field [0001] The invention relates to the technical field of surface treatment of metal materials, in particular to a surface treatment process of magnesium alloy products. Background technique [0002] Magnesium alloy is a common alloy material in daily life. The main alloy elements are aluminum, zinc, manganese, cerium, thorium, and a small amount of zirconium or cadmium. Magnesium alloy has good machinability, high specific strength, good shock absorption ability, and electromagnetic shielding. Good performance, excellent hydrogen storage performance, good thermal conductivity, high die-casting productivity, easy cutting, easy recycling, etc., is a light metal structural material with superior performance, and has great potential in industries such as aviation, aerospace, electronics, automobiles, and medical equipment. widely used. However, magnesium has the characteristics of poor corrosion resistance, and magnesium alloys have the disadvantage of being easil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/44C25D13/04C23F17/00
Inventor 吴功益朱剑文
Owner 张家港沙龙精密管业有限公司
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