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Electroplating blank surface treatment method of magnesium alloy rolling product

A surface treatment and magnesium alloy technology, applied in liquid chemical plating, metal material coating process, coating, etc., can solve the problems of increased processing cost and high cost of surface ceramicization, and achieve good bonding effect

Inactive Publication Date: 2010-12-08
李克清 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the micro-arc oxidation of magnesium alloy makes the surface ceramicization cost is very high, and the electroplating on the ceramic layer increases the processing cost a lot

Method used

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  • Electroplating blank surface treatment method of magnesium alloy rolling product
  • Electroplating blank surface treatment method of magnesium alloy rolling product

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment A

[0070] Specific embodiment A: the preparation of the special pretreatment liquid of corrosion-resistant magnesium alloy:

[0071] 1. The composition of PIN.C additive is per liter of solution

[0072]

[0073] 2. The composition of PIN.C-2 additive is per liter of solution

[0074] PIN.C-2

sulfuric acid

Sodium chloride

oxalic acid

corrosion inhibitor

Weight g / L

50-100

50-100

50-100

5-10

[0075] Corrosion inhibitor is boric acid 5-10g / L.

[0076] 3. The composition of PIN.C-3 additive is per liter of solution

[0077] PIN.C-3

Embodiment B

[0078] Recipe preparation embodiment B: the preparation of activation treatment liquid:

[0079] The composition of PIN.D additive is per liter of solution

[0080] PIN.D

Embodiment C

[0081] Recipe preparation embodiment C: the preparation of neutralization treatment liquid:

[0082] PIN.E

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PUM

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Abstract

The invention discloses an electroplating blank surface treatment method of a magnesium alloy rolling product, comprising the following steps of: carrying out oil wax removal on the magnesium alloy rolling product; carrying out acidic activation treatment on the magnesium alloy rolling product subjected to oil wax removal by using an acid solution of ammonium bifluoride or acid solutions of sodium salts; carrying out alkaline activation treatment on the magnesium alloy rolling product by using alkaline activators of potassium pyrophosphate, sodium hydroxide and sodium citrate; carrying out acidic activation treatment on the magnesium alloy rolling product by using acid solutions of ammonium bifluoride, hydrofluoric acid and phosphoric acid; and carrying out neutralization treatment on the magnesium alloy rolling product by using neutralizing solutions of ammonium bifluoride and sodium hypophosphite. By adopting the method, bottom layer nickel or copper which has sufficient binding force and is even and compact can be covered on magnesium alloy rolling plates, bar materials and pipes. The method has low cost and is easy to popularize and apply.

Description

technical field [0001] The invention relates to an electroplating method, in particular to a surface treatment method for electroplating blanks of magnesium alloy rolling products. Background technique [0002] Under the trend of the earth's traditional metal copper, iron and zinc resources being increasingly depleted, in order to protect the environment, reduce carbon consumption and reduce emissions, it is proposed to find new alternative metals. With its excellent mechanical properties, magnesium is gradually recognized as a new metal in the 21st century. However, the basic chemical activity, corrosiveness and flammability of magnesium often make the industry daunted. It has been ten years since the Ministry of Science and Technology 863 proposed the development of the magnesium industry in the national "Tenth Five-Year Plan", and the development of magnesium products has been slow. In recent years, with the development of scientific research and technology, different g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C18/18C23C18/36
Inventor 李克清龚京一
Owner 李克清
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