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Environmental-protection aluminum alloy surface treatment liquid and preparation method thereof

A technology of aluminum alloy surface and treatment liquid, which is applied in the field of environment-friendly aluminum alloy surface treatment liquid and its preparation, can solve problems such as aluminum alloy surface corrosion and damage to aluminum alloy, and achieve durable cleaning power, low cost, and rapid and thorough cleaning speed Effect

Active Publication Date: 2019-05-28
广州市帝东环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, improper cleaning of the aluminum alloy surface treatment liquid currently on the market will cause corrosion to the aluminum alloy surface, and there will still be very little cleaning liquid remaining on the aluminum alloy after washing, which will damage the aluminum alloy

Method used

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  • Environmental-protection aluminum alloy surface treatment liquid and preparation method thereof
  • Environmental-protection aluminum alloy surface treatment liquid and preparation method thereof
  • Environmental-protection aluminum alloy surface treatment liquid and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] An environment-friendly aluminum alloy surface treatment liquid is made of the following raw materials in weight percentage: citric acid 2.0%, tartaric acid 1.0%, sodium lauryl sulfate 0.3%, glycerol 5.0%, sodium silicate 0.15%, stearin Potassium acid potassium 0.5%, modified polyacrylamide 1.5%, sodium hexametaphosphate 0.05%, deionized water 60.0%;

[0035] The environmental protection aluminum alloy surface treatment liquid is made by the following steps:

[0036] Step S1, add citric acid and tartaric acid into a three-neck flask filled with half of deionized water, heat in a water bath at 45°C, stir at a constant speed for 30 minutes, and then pass in nitrogen to exhaust the air to prepare a mixed solution A;

[0037] Step S2, put the modified polyacrylamide and sodium hexametaphosphate into a beaker, add the other half of deionized water until the modified polyacrylamide and sodium hexametaphosphate are completely dissolved, add 10% dilute hydrochloric acid to adju...

Embodiment 2

[0045] An environment-friendly aluminum alloy surface treatment solution is made of the following raw materials in weight percentage: 2.5% citric acid, 1.5% tartaric acid, 0.5% sodium lauryl sulfate, 6.0% glycerol, 0.18% sodium silicate, stearin Potassium acid potassium 0.8%, modified polyacrylamide 1.7%, sodium hexametaphosphate 0.06%, deionized water 65.0%;

[0046] The environmental protection aluminum alloy surface treatment liquid is made by the following steps:

[0047] Step S1, add citric acid and tartaric acid into a three-neck flask filled with half of deionized water, heat in a water bath at 45°C, stir at a constant speed for 30 minutes, and then pass in nitrogen to exhaust the air to prepare a mixed solution A;

[0048] Step S2, put the modified polyacrylamide and sodium hexametaphosphate into a beaker, add the other half of deionized water until the modified polyacrylamide and sodium hexametaphosphate are completely dissolved, add 10% dilute hydrochloric acid to ad...

Embodiment 3

[0052] An environment-friendly aluminum alloy surface treatment liquid is made of the following raw materials in weight percentage: citric acid 4.5%, tartaric acid 2.8%, sodium lauryl sulfate 0.8%, glycerol 7.0%, sodium silicate 0.2%, stearin Potassium acid potassium 1.3%, modified polyacrylamide 1.8%, sodium hexametaphosphate 0.08%, deionized water 75.0%;

[0053] The environmental protection aluminum alloy surface treatment liquid is made by the following steps:

[0054] Step S1, add citric acid and tartaric acid into a three-neck flask filled with half of deionized water, heat in a water bath at 45°C, stir at a constant speed for 30 minutes, and then pass in nitrogen to exhaust the air to prepare a mixed solution A;

[0055] Step S2, put the modified polyacrylamide and sodium hexametaphosphate into a beaker, add the other half of deionized water until the modified polyacrylamide and sodium hexametaphosphate are completely dissolved, add 10% dilute hydrochloric acid to adjus...

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Abstract

The invention discloses environmental-protection aluminum alloy surface treatment liquid. The environmental-protection aluminum alloy surface treatment liquid is prepared by the following raw materials in percentage by weight: 2.0-5.0% of citric acid, 1.0-3.0% of tartaric acid, 0.3-1.0% of lauryl sodium sulfate, 5.0-8.0% of glycerin, 0.15-0.20% of inorganic corrosion inhibitor, 0.5-1.5% of stabilizing agent, 1.5-2.0% of modified polyacrylamide, 0.05-0.10% of sodium hexametaphosphate, and 60.0-80.0% of de-ionized water. The invention further discloses a preparation method of the environmental-protection aluminum alloy surface treatment liquid. The environmental-protection aluminum alloy surface treatment liquid is prepared through the citric acid, the tartaric acid and the modified polyacrylamide; in the preparation process, the lauryl sodium sulfate is used as an anionic surfactant, the sodium hexametaphosphate is used as a complexing agent, and the stabilizing agent and the inorganiccorrosion inhibitor are added to prepare the environmental-protection aluminum alloy surface treatment liquid; and the treatment liquid can effectively remove oxide films, passive films and oil stainson the surfaces of aluminum alloy products, cannot corrode the surfaces of the aluminum alloys, and cannot destroy the environment after flushing by water.

Description

technical field [0001] The invention belongs to the field of surface treatment liquid preparation, in particular to an environment-friendly aluminum alloy surface treatment liquid and a preparation method thereof. Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal structural material in industry, and has been widely used in aviation, aerospace, automobile, machinery manufacturing, shipbuilding and chemical industry. With the rapid development of industrial economy, the demand for welded structural parts of aluminum alloy is increasing day by day, so that the research on weldability of aluminum alloy is also in-depth. At present, aluminum alloy is the most widely used alloy. The main alloying elements are copper, silicon, magnesium, zinc, and manganese, and the secondary alloying elements are nickel, iron, titanium, chromium, lithium, etc. Aluminum alloy treatment liquid is an industrial treatment liquid used for cleaning various greases, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/12C23G1/04C08F220/56C08F220/34C08F226/06C08F220/06
Inventor 朱海涛段志平
Owner 广州市帝东环保科技有限公司
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