ZK61M magnesium alloy conversion film treatment agent and conversion film treatment method

A ZK61M and treatment method technology, applied in the field of ZK61M magnesium alloy surface conversion coating treatment, can solve the problems of limited application promotion, poor corrosion resistance, and no environmental protection conversion coating treatment agent developed.

Inactive Publication Date: 2017-09-05
广东东明新材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ZK61M (MB15) magnesium alloy has very poor corrosion resistance in air, which limits its application and promotion.
ZK61M (MB15) magnesium alloy ha

Method used

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  • ZK61M magnesium alloy conversion film treatment agent and conversion film treatment method
  • ZK61M magnesium alloy conversion film treatment agent and conversion film treatment method
  • ZK61M magnesium alloy conversion film treatment agent and conversion film treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] 1. Degreasing: use sodium hydroxide 10 g / L, trisodium phosphate 20 g / L, sodium gluconate 2 g / L, OP-10 emulsifier 1.5 g / L, temperature 60 degrees, and process for 6 minutes. After washing with water, put it into the pickling solution below;

[0067] 2. Pickling: Use 50 ml of nitric acid, 10 g / l of phosphoric acid, 0.2 ml / l of low-foaming surfactant, at a temperature of 60 degrees, for 30-60 seconds. After washing with water, put it into the table conditioning solution below;

[0068] 3. Surface adjustment: use sodium hydroxide 50-100 g / l, temperature 60 degrees, deash for 5 minutes. After washing with water, put it into the following conversion solution for processing;

[0069] 4. Transformation: Put the ZK61M (MB15) magnesium alloy workpiece treated above into:

[0070]

[0071] pH = 1.5.

[0072] Treat in the conversion coating treatment solution at a temperature of 50-65 degrees for 3-5 minutes;

[0073] After washing with water, put it in the blocking solutio...

Embodiment 2

[0077] 1. Degreasing: use sodium hydroxide 10 g / L, trisodium phosphate 20 g / L, sodium gluconate 2 g / L, OP-10 emulsifier 1.5 g / L, temperature 60 degrees, and process for 6 minutes. After washing with water, put it into the pickling solution below;

[0078] 2. Pickling: Use 50 ml of nitric acid, 10 g / l of phosphoric acid, 0.2 ml / l of low-foaming surfactant, at a temperature of 60 degrees, for 30-60 seconds. After washing with water, put it into the table conditioning solution below;

[0079] 3. Surface adjustment: use sodium hydroxide 50-100 g / l, temperature 60 degrees, deash for 5 minutes. After washing with water, put it into the following conversion solution for processing;

[0080] 4. Transformation: Put the ZK61M (MB15) magnesium alloy workpiece treated above into:

[0081]

[0082] pH = 1.5.

[0083] Treat in the conversion coating treatment solution at a temperature of 50-65 degrees for 3-5 minutes;

[0084] After washing with water, put it in the blocking solutio...

Embodiment 3

[0088] 1. Degreasing: use sodium hydroxide 10 g / L, trisodium phosphate 20 g / L, sodium gluconate 2 g / L, OP-10 emulsifier 1.5 g / L, temperature 60 degrees, and process for 6 minutes. After washing with water, put it into the pickling solution below;

[0089] 2. Pickling: Use 50 ml of nitric acid, 10 g / l of phosphoric acid, 0.2 ml / l of low-foaming surfactant, at a temperature of 60 degrees, for 30-60 seconds. After washing with water, put it into the table conditioning solution below;

[0090] 3. Surface adjustment: use sodium hydroxide 50-100 g / l, temperature 60 degrees, deash for 5 minutes. After washing with water, put it into the following conversion solution for processing;

[0091] 4. Transformation: Put the ZK61M (MB15) magnesium alloy workpiece treated above into:

[0092]

[0093] PH value = 1.5,

[0094] Treat in the conversion coating treatment solution at a temperature of 50-65 degrees for 3-5 minutes;

[0095] After washing with water, put it into the followin...

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PUM

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Abstract

The invention relates to a ZK61M magnesium alloy conversion film treatment agent and a ZK61M magnesium alloy conversion film treatment method. The ZK61M magnesium alloy conversion film treatment agent comprises the following components by concentrations: 5-25 g/l of phosphoric acid, 1-25 g/l of manganous dihydrogen phosphate, 1-25 g/l of manganese nitrate, 1-25 g/l of calcium nitrate, 1-25 g/l of strontium nitrate, 1-25 g/l of magnesium nitrate, 0.1-1 g/l of metavanadate, 0.01-0.05 ml/l of dispersing agent, and the balance of water. The ZK61M magnesium alloy conversion film treatment agent performs the chemical conversion film treatment on the surface of a ZK61M magnesium alloy to form a conversion film with good adhesion, high corrosion resisting degree, salt mist resistance and good film forming uniformity.

Description

technical field [0001] The invention relates to the technical field of ZK61M magnesium alloy surface conversion coating treatment, in particular to a ZK61M magnesium alloy conversion coating treatment agent and a ZK61M magnesium alloy conversion coating treatment method. Background technique [0002] At present, ZK61M (MB15) magnesium alloy is a high-strength magnesium alloy, and its specific strength exceeds that of high-strength 7075 aluminum alloy. , will bring another revolution after aluminum alloy to the field of materials. However, ZK61M (MB15) magnesium alloy has very poor corrosion resistance in air, which limits its application and popularization. ZK61M (MB15) magnesium alloy has extremely high chemical activity, so far no environmentally friendly conversion coating treatment agent with good corrosion resistance has been developed. The environmental protection treatment method of the ZK61M (MB15) magnesium alloy conversion coating is basically not available in th...

Claims

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Application Information

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IPC IPC(8): C23C22/42
CPCC23C22/42
Inventor 熊猛况金权霍浩王志成
Owner 广东东明新材科技有限公司
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