Surface treating agent for chrome-based aluminum alloy

A technology of aluminum alloy surface and treatment agent, applied in the direction of metal material coating process, etc., can solve the problems of easy shedding, poor ability to adapt to the environment, and no improvement in wear resistance, and achieve excellent corrosion resistance and good corrosion resistance. effect of effect

Inactive Publication Date: 2014-10-15
六安华邦机电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The commonly used method is anodic oxidation method, which forms a conversion film on the surface of aluminum alloy by electrochemical method. Although this method can improve the corrosion resistance of aluminum alloy, its ability to adapt to the environment is poor, and the conversion film layer is not uniform enough and easy to fall off. , the wear resistance has not been improved, and the traditional phosphate conversion and chromate passivation surface treatment technology can obtain good results, but the waste liquid discharged during the treatment process...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A chromium-based aluminum alloy surface treatment agent, which is made up of the following raw materials in parts by weight:

[0019] Tea saponin 0.5, ethylene bisstearamide 0.7, sodium carboxymethyl cellulose 2, polylactic acid 2.5, sodium gluconate 1, chromium trioxide 0.2, potassium chloride 0.4, 8-hydroxyquinoline 0.4, dimethylamino Propylamine 0.4, isobutanol 5.6, film-forming aid 1, silane coupling agent KH570 20, deionized water 140;

[0020] Described film-forming aid is made up of the raw material of following weight part:

[0021] Silicone acrylic emulsion 40, linseed gum 3, polyhexamethylene guanidine 0.5, glycerol polyoxyethylene ether cocoate 0.5, ammonium metavanadate 0.2, potassium tungstate 0.2, seabuckthorn oil 0.4, deionized water 80;

[0022] Mix potassium tungstate and ammonium metavanadate, add it to 20 times deionized water, stir and heat at 80°C for 4 minutes, add linseed gum, stir to room temperature, and get a gel;

[0023] Add polyhexamethyle...

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PUM

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Abstract

The invention discloses a surface treating agent for a chrome-based aluminum alloy. The surface treating agent comprises the following raw materials in parts by weight: 0.5-1 part of tea saponin, 0.7-2 parts of ethylene distearamide, 1-2 parts of sodium carboxymethylcellulose, 2.5-4 parts of polylactic acid, 1-2 parts of sodium gluconate, 0.1-0.2 part of chromium trioxide, 0.2-0.4 part of potassium chloride, 0.1-0.4 part of 8-hydroxyquinoline, 0.2-0.4 part of dimethylamino propylamine, 5.6-8 parts of isobutanol, 1-2 parts of coalescing agent, 16-20 parts of silane coupling agent KH570, and 100-140 parts of de-ionized water. The surface treating agent has excellent corrosion resistance, chemicals resistance, heat discoloration resistance and weather resistance, is effective for aluminum alloy workpieces without scratches, and can achieve excellent corrosion resisting effect on exposed scratched parts.

Description

technical field [0001] The invention mainly relates to the field of surface treatment, in particular to a chromium-based aluminum alloy surface treatment agent. Background technique [0002] There are many surface treatment methods for aluminum alloys, such as physical methods, chemical methods, physicochemical methods, and comprehensive methods. The commonly used method is anodic oxidation method, which forms a conversion film on the surface of aluminum alloy by electrochemical method. Although this method can improve the corrosion resistance of aluminum alloy, its ability to adapt to the environment is poor, and the conversion film layer is not uniform enough and easy to fall off. , the wear resistance has not been improved, and the traditional phosphate conversion and chromate passivation surface treatment technology can obtain good results, but the waste liquid discharged during the treatment process contains heavy metal ions such as zinc, manganese, nickel, chro...

Claims

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Application Information

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IPC IPC(8): C23C22/43
Inventor 李小龙李华胜李华兵
Owner 六安华邦机电有限公司
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