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Electric arc spraying aluminium-magnesium alloy coating sealant with high corrosion resistance, preparation process and application of sealant

A technology of arc spraying and aluminum-magnesium alloy, applied in metal material coating process, coating, fusion spraying, etc., can solve the problem of shrinkage of inorganic sealing agent during solidification, failure to achieve effective sealing depth, and coating sealing Poor effect and other problems, to achieve good sealing effect, meet the corrosion resistance, and improve the effect of corrosion resistance

Inactive Publication Date: 2014-12-03
广州市汉科建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to solve the problem that the organic resin sealing agent in the existing traditional arc spraying aluminum-magnesium alloy coating sealing technology cannot reach the effective sealing depth, and the inorganic sealing agent shrinks during the solidification process, resulting in the sealing density. Reduced, poor sealing effect of the coating, etc.

Method used

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  • Electric arc spraying aluminium-magnesium alloy coating sealant with high corrosion resistance, preparation process and application of sealant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] High anti-corrosion electric arc spraying aluminum-magnesium alloy coating sealing agent, based on 1 liter of the sealing agent, includes the following components, tannic acid 12 grams / liter, ammonium molybdate 12 grams / liter, sodium citrate 6 grams / L, sodium tungstate 8 g / L, and the balance is water.

[0041] The sealing agent is prepared according to the following steps:

[0042] 1) Add tannic acid to 100ml water and mix well;

[0043] 2) Slowly add ammonium molybdate and mix well;

[0044] 3) Then add sodium citrate and mix well;

[0045] 4) Then add sodium tungstate and mix well;

[0046] 5) Finally, add water slowly to reach the standard volume, and mix well to complete the preparation of the sealing agent.

[0047] Application of high anti-corrosion electric arc spraying aluminum-magnesium alloy coating sealing agent,

[0048] Wash the parts with arc sprayed aluminum-magnesium alloy coating with water, select the temperature of the water to be 30°C, and then...

Embodiment 2

[0052] High anti-corrosion electric arc spraying aluminum-magnesium alloy coating sealing agent, based on 1 liter of the sealing agent, includes the following components, 14 g / L of tannic acid, 18 g / L of ammonium molybdate, and 9 g of sodium citrate / liter, sodium tungstate 10 g / liter, the balance is water.

[0053] The sealing agent is prepared according to the following steps:

[0054] 1) Add tannic acid to 100ml water and mix well;

[0055] 2) Slowly add ammonium molybdate and mix well;

[0056] 3) Then add sodium citrate and mix well;

[0057] 4) Then add sodium tungstate and mix well;

[0058] 5) Finally, add water slowly to reach the standard volume, and mix well to complete the preparation of the sealing agent.

[0059] Application of high anti-corrosion electric arc spraying aluminum-magnesium alloy coating sealing agent,

[0060] Wash the parts with arc sprayed aluminum-magnesium alloy coating with water, select the water temperature as 40°C, and then remove t...

Embodiment 3

[0064] High anti-corrosion electric arc spraying aluminum-magnesium alloy coating sealing agent, based on 1 liter of the sealing agent, includes the following components, 16 grams / liter of tannic acid, 22 grams / liter of ammonium molybdate, and 12 grams of sodium citrate / liter, sodium tungstate 12 g / liter, the balance is water.

[0065] The sealing agent is prepared according to the following steps:

[0066] 1) Add tannic acid to 100ml water and mix well;

[0067] 2) Slowly add ammonium molybdate and mix well;

[0068] 3) Then add sodium citrate and mix well;

[0069] 4) Then add sodium tungstate and mix well;

[0070] 5) Finally, add water slowly to reach the standard volume, and mix well to complete the preparation of the sealing agent.

[0071] Application of high anti-corrosion electric arc spraying aluminum-magnesium alloy coating sealing agent,

[0072] Wash the parts with arc sprayed aluminum-magnesium alloy coating with water, select the temperature of the wate...

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Abstract

The invention discloses an electric arc spraying aluminium-magnesium alloy coating sealant with high corrosion resistance. The sealant is characterized in that with one liter of sealant as the benchmark, the sealant comprises 12-16g / L of tannic acid, 12-22g / L of ammonium molybdate, 6-12g / L of sodium citrate, 8-12g / L of sodium tungstate and the balance of water. The invention simultaneously discloses a preparation method and application of the sealant. The sealant can carry out sealing treatment on the electric arc spraying aluminium-magnesium alloy coating, forms a chemical oxidation film on the surface of the coating through bonding after sealing treatment, can obviously reduce the porosity of the electric arc spraying aluminium-magnesium alloy coating and improve the corrosion resistance of the electric arc spraying aluminium-magnesium alloy coating, and is environment-friendly and pollution-free.

Description

technical field [0001] The invention relates to a coating sealing agent, a preparation process and application thereof, in particular to a high-corrosion-resistant electric arc spraying aluminum-magnesium alloy coating sealing agent, preparation process and application thereof. Background technique [0002] With the development of modern surface technology, thermal spray coatings with high performance-price ratio have been used more and more widely. In particular, arc spraying technology is a technology with low cost, high efficiency, energy saving, flexible operation, stable coating quality and high coating bonding strength. It has developed rapidly in China in recent years. The preconditions laid the foundation for its popularization and application in a wider field. Arc spraying technology is becoming more and more mature. At present, various composite coatings such as pure zinc, pure aluminum or Al-Mg, Al-Zn at home and abroad are mainly based on steel plates, and are w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C4/18C23C22/40
Inventor 李丽邢士波李晓刚董超芳
Owner 广州市汉科建材科技有限公司