A kind of iron stripping solution and the process of stripping the iron layer on the surface of aluminum alloy

A technology for removing iron on the surface of aluminum alloys, applied in the field of removing the iron layer on the surface of aluminum alloys, the iron removal solution and its preparation, and the technical field of removing the iron layer on the surface of aluminum alloys, which can solve the problem of low production efficiency and high energy consumption of sandblasting , high labor intensity of workers and other issues, to achieve the effect of ensuring health and safety and high response efficiency

Active Publication Date: 2021-12-17
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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  • A kind of iron stripping solution and the process of stripping the iron layer on the surface of aluminum alloy
  • A kind of iron stripping solution and the process of stripping the iron layer on the surface of aluminum alloy
  • A kind of iron stripping solution and the process of stripping the iron layer on the surface of aluminum alloy

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-nitrobenzenesulfonate and cetylphosphonic acid in water according to the percentage, stir to dissolve, 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 an iron...

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 a process for removing the iron layer on the surface of an aluminum alloy, which has very good social and economic benefits. The invention provides an iron anaphora solution with simple ingredients, which comprises the following components in terms of mass percentage: 20-40% of sulfuric acid, 0.02-0.2% of casein, 0.05-0.3% of nicotinic acid, and 0.5-0.5-sodium m-nitrobenzenesulfonate 1.5%, cetylphosphonic acid 0.1‑0.5%, quinacic acid 0.02‑0.2%, sulfosalicylic acid 0.5‑2.5%, water balance. The iron stripping solution of the invention can effectively corrode the iron layer on the surface of the aluminum alloy, and at the same time, the iron stripping solution basically does not react with aluminum and does not affect the quality of the aluminum alloy substrate. There is also an ingredient in the iron stripping solution that inhibits the generation of acid mist, which basically does not generate acid mist during the reaction, which can ensure the health and safety of production operators; the iron stripping solution has high reaction efficiency and can quickly remove the iron layer on the surface of the clean aluminum alloy substrate.

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 Patents(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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