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A kind of bright treatment liquid for magnesium alloy die castings

A die-casting and magnesium alloy technology, applied in the field of magnesium alloy die-casting brightening treatment fluid, can solve the problems of difficult cleaning of natural oxide film, expanding application of magnesium alloy die-castings, difficulty in washing and brightening magnesium alloy die-castings, etc., to achieve improvement Effect of production operation environment, inhibition of excessive corrosion, and uniform appearance

Active Publication Date: 2020-03-10
山西银光华盛镁业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the application of magnesium alloys more and more widely, the market demand for the surface treatment of magnesium alloy products is becoming more and more stringent. Due to the high activity of magnesium alloys, they are easily oxidized in the air, which brings a great deal of pressure to the pretreatment of magnesium alloys. Difficult, the pre-treatment uses chemicals with strong oxidizing properties, and the parts that are easy to corrode, choose chemicals that are too weak, the natural oxide film on the surface is not easy to clean, thus affecting the post-oxidation quality
[0004] Magnesium alloy die castings have been widely used in automotive parts, electronic products, electric tools and other fields. The demand for brightening the surface of magnesium alloy die castings is increasing. However, due to the shortcomings of magnesium alloy die castings such as porous surface and large segregation layer, It makes it difficult to wash the magnesium alloy die castings brightly by ordinary bright pickling treatment, which restricts the expansion of the application of magnesium alloy die castings
The invention designs a new type of natural bright cleaning treatment liquid for magnesium alloy die castings, which solves the problem that magnesium alloy die castings are difficult to be cleaned

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The present invention is realized through the following technical solutions: a bright treatment solution for magnesium alloy die-casting parts, the components of the treatment solution include: hydrogen peroxide, triethylenetetramine, fused cellulose, and OP-10, and the concentration of hydrogen peroxide in the treatment solution is 15ml / L, triethylenetetramine concentration 18ml / L, cellulose melt concentration 35ml / L, OP-10 concentration 0.5ml / L.

[0021] The fused cellulose is sodium carboxymethyl cellulose.

[0022] The working temperature of the treatment liquid is 40-50° C., and the treatment time is 15-30 seconds.

Embodiment 2

[0024] A bright treatment solution for magnesium alloy die castings, the treatment solution includes the following components: hydrogen peroxide, triethylenetetramine, fused cellulose, OP-10, in the treatment solution, the concentration of hydrogen peroxide is 10ml / L, triethylene The concentration of tetramine is 20ml / L, the concentration of fused cellulose is 30ml / L, and the concentration of OP-10 is 0.5ml / L.

[0025] The fused cellulose is sodium carboxymethyl cellulose.

[0026] The working temperature of the treatment liquid is 40-50° C., and the treatment time is 15-30 seconds.

Embodiment 3

[0028] A bright treatment solution for magnesium alloy die castings, the treatment solution includes the following components: hydrogen peroxide, triethylenetetramine, fused cellulose, OP-10, in the treatment solution, the concentration of hydrogen peroxide is 10ml / L, triethylene The concentration of tetramine is 18ml / L, the concentration of fused cellulose is 25ml / L, and the concentration of OP-10 is 0.3ml / L.

[0029] The fused cellulose is sodium carboxymethyl cellulose.

[0030] The working temperature of the treatment liquid is 40-50° C., and the treatment time is 15-30 seconds.

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PUM

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Abstract

The invention relates to a bright treatment liquid for a magnesium alloy die casting. The treatment liquid is simple in configuration, easily available in raw material, stable in quality and low in pollution, and is suitable for bright treatment of magnesium alloy die castings produced on a large scale. The bright treatment liquid for the magnesium alloy die casting comprises the following components: hydrogen peroxide with a concentration of 10-15 ml / L, triethylene tetramine with a concentration of 18-23 ml / L, hementerin with a concentration of 25-35 ml / L, OP-10 with a concentration of 0.3-0.7 ml / L, and the balance of water. The hementerin is sodium carboxymethyl cellulose. The working temperature of the treatment liquid is 40-50 DEG C, and the treatment time is 15-30 seconds.

Description

technical field [0001] The invention discloses a bright treatment liquid for magnesium alloy die castings, which belongs to the technical field of metal material surface treatment. Background technique [0002] Magnesium alloy is an alloy composed of magnesium and other elements. Its characteristics are: low density, high specific strength, large specific elastic modulus, good heat dissipation, good shock absorption, greater impact load capacity than aluminum alloy, and good corrosion resistance of organic matter and alkali. Magnesium alloys are mainly used in the fields of aerospace, electronics and automobiles. [0003] With the application of magnesium alloys more and more widely, the market demand for the surface treatment of magnesium alloy products is becoming more and more stringent. Due to the high activity of magnesium alloys, they are easily oxidized in the air, which brings a great deal of pressure to the pretreatment of magnesium alloys. Difficult, the pre-trea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23F3/02
CPCC23F3/02
Inventor 周豪光赵李斌赵韩欣崔凯张红芳
Owner 山西银光华盛镁业股份有限公司
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