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Iron removing liquid and aluminum alloy surface iron layer removing technology

A technology of iron removal and process, applied in the direction of metal material coating process, etc., can solve the problems of low production efficiency, large waste slag discharge, high energy consumption of sandblasting, etc., and achieve the effect of ensuring health and safety, simple ingredients and high reaction efficiency

Active Publication Date: 2020-03-27
JIANGMEN ANNUOTE COOKING UTENSILS MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, sand blasting has the disadvantages of high energy consumption, large amount of waste residue discharge, high labor intensity and low efficiency of workers, and the production efficiency is extremely low.

Method used

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  • Iron removing liquid and aluminum alloy surface iron layer removing technology
  • Iron removing liquid and aluminum alloy surface iron layer removing technology
  • Iron removing liquid and aluminum alloy surface iron layer removing technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A kind of iron alamentin, by mass percentage, comprises following component:

[0045]

[0046] A preparation method of iron anaphora solution, comprising the following steps:

[0047] Dissolve casein and nicotinic acid in water at 45°C according to the percentage, stir to dissolve, and obtain solution A;

[0048] Dissolve sodium m-nitrate benzenesulfonate and cetyl phosphonic acid in water according to the percentage, stir to dissolve it, and obtain solution B;

[0049] Dissolving quinalic acid and sulfosalicylic acid in water according to the percentage, stirring to dissolve, and obtaining solution C;

[0050] Slowly add sulfuric acid into the PP tank that has been filled with water according to the percentage. The temperature of the solution in the feeding is controlled within 70 degrees. When the temperature drops to within 65 degrees, add solution B and stir evenly, then add solution C and stir evenly, and finally add The solution A is stirred evenly to obtain ...

Embodiment 2

[0054] A kind of iron alamentin, by mass percentage, comprises following component:

[0055]

[0056] The preparation method of the iron anaphora solution of the present embodiment is the same as that in Example 1.

[0057] A process for removing an iron layer on the surface of an aluminum alloy, comprising the following steps:

[0058] The temperature of the iron removal solution is controlled at 60°C. Put the aluminum alloy cookware to be iron removal into the heating device of the iron removal tank equipped with the iron removal solution to start the iron removal. At the beginning, the reaction is more violent and more gas is generated. When the reaction When there is no obvious gas generation when slowing down significantly, take out the aluminum alloy cookware and observe whether the iron layer on the surface is completely removed; if it is completely removed, wash it with clean water at room temperature.

Embodiment 3

[0060] A kind of iron alamentin, by mass percentage, comprises following component:

[0061]

[0062]

[0063] The preparation method of the iron anaphora solution of the present embodiment is the same as that in Example 1.

[0064] A process for removing an iron layer on the surface of an aluminum alloy, comprising the following steps:

[0065] The temperature of the iron-removing solution is controlled at 65°C. Put the aluminum alloy cookware to be iron-removed into the iron-removing tank heating device equipped with the iron-removing solution to start the iron removal. The reaction is more violent at the beginning and more gas is generated. When the reaction When there is no obvious gas generation when slowing down significantly, take out the aluminum alloy cookware and observe whether the iron layer on the surface is completely removed; if it is completely removed, wash it with clean water at room temperature.

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Abstract

The invention relates to an aluminum alloy surface iron layer removing technology with very good social benefits and economic benefits. Iron removing liquid with simple components is provided and comprises following components including, by mass percent, 20%-40% of sulfuric acid, 0.02%-0.2% of casein, 0.05%-0.3% of niacin, 0.5%-1.5% of M-benzene sulfonate sodium nitrate, 0.1%-0.5% of hexadecyl phosphonic acid, 0.02%-0.2% of quinaldinic acid, 0.5%-2.5% of sulfosalicylic acid and the balance water. By means of the iron removing liquid, an iron layer on the aluminum alloy surface can be effectively corroded, meanwhile, the iron removing liquid basically does not react with aluminum, and the quality of an aluminum alloy base body is not influenced. The iron removing liquid further contains components restraining acid mist generation, acid mist is basically not generated during the reaction, and health and safety of operators can be guaranteed. The reaction efficiency of the iron removing liquid is high, and the iron layer on the surface of the aluminum alloy base body can be rapidly removed thoroughly.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy surface treatment, and relates to a process for removing the iron layer on the surface of aluminum alloys, in particular to an iron removal liquid and its preparation method and a process for removing the iron layer on the surface of aluminum alloys. The process of the present invention is also applicable It is used to remove other iron layers on the surface of the aluminum alloy substrate, and has very good social and economic benefits. Background technique [0002] The induction cooker has become one of the indispensable household appliances in modern family life. It must choose a pot with a magnetically conductive bottom to achieve the cooking heating effect. This kind of pot is mostly a stainless steel pot or an aluminum pot with a multi-layer metal composite bottom structure. . The production cost of all stainless steel pots is high, the bottom of the pot is thin, and it is easy to bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F1/28C23C22/56
CPCC23F1/28C23C22/56
Inventor 雷瑞强舒伟
Owner JIANGMEN ANNUOTE COOKING UTENSILS MFG
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