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A kind of preparation method of aluminum alloy surface treatment liquid

A technology of aluminum alloy surface and treatment liquid, which is applied in the field of preparation of aluminum alloy surface treatment liquid, can solve the problems of unsatisfactory cleaning effect, high price, large amount of cleaning, etc., achieve rapid and thorough cleaning and degreasing, and low cost of use , the effect of simple operation

Active Publication Date: 2016-09-28
SUZHOU BOYANG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the preparation of aluminum alloy surface treatment liquid on the market mostly adopts foreign technology, and the price has been high.
However, the aluminum alloy surface treatment liquid prepared domestically requires a large amount of cleaning, and the cleaning effect is not very satisfactory.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment one: a kind of preparation method of aluminum alloy surface treatment liquid, its steps are:

[0011] (1) Take sodium dodecylbenzenesulfonate and nonionic surfactant JFC according to the mass ratio of 1:1, dissolve sodium dodecylbenzenesulfonate into nonionic surfactant JFC, stir evenly, and prepare into a surfactant for subsequent use;

[0012] (2) In a constant temperature environment of 25°C, take 65 liters of phosphoric acid, slowly add 18 liters of nitric acid to phosphoric acid, the speed of adding nitric acid is 100 liters per minute, mechanically stir in the process of adding nitric acid, the speed of mechanical stirring is 100 rev / min, 83 liters of mixed acid are prepared;

[0013] (3) In a constant temperature environment of 25°C, add 2.5 liters of surfactant prepared in step (1) to 83 liters of mixed acid prepared in step (2), at a rate of 1 liter per minute, stir evenly and let stand to prepare into aluminum alloy surface treatment fluid.

Embodiment 2

[0014] Embodiment two: a kind of preparation method of aluminum alloy surface treatment liquid, its steps are:

[0015] (1) Take sodium dodecylbenzenesulfonate and nonionic surfactant JFC according to the mass ratio of 1:1, dissolve sodium dodecylbenzenesulfonate into nonionic surfactant JFC, stir evenly, and prepare into a surfactant for subsequent use;

[0016] (2) In a constant temperature environment of 25°C, take 70 liters of phosphoric acid, slowly add 22 liters of nitric acid to phosphoric acid, the speed of adding nitric acid is 100 liters per minute, mechanically stir in the process of adding nitric acid, the speed of mechanical stirring is 100 rev / min, prepared 92 liters of mixed acid;

[0017] (3) In a constant temperature environment of 25°C, add 3 liters of surfactant prepared in step (1) to 92 liters of mixed acid prepared in step (2), at a rate of 1 liter per minute, stir evenly and let stand to prepare into aluminum alloy surface treatment fluid.

Embodiment 3

[0018] Embodiment three: a kind of preparation method of aluminum alloy surface treatment liquid, its steps are:

[0019] (1) Take sodium dodecylbenzenesulfonate and nonionic surfactant JFC according to the mass ratio of 1:1, dissolve sodium dodecylbenzenesulfonate into nonionic surfactant JFC, stir evenly, and prepare into a surfactant for subsequent use;

[0020] (2) In a constant temperature environment of 25°C, take 85 liters of phosphoric acid, slowly add 25 liters of nitric acid to phosphoric acid, the speed of adding nitric acid is 100 liters per minute, mechanical stirring is carried out in the process of adding nitric acid, the speed of mechanical stirring is 100 rev / min, 110 liters of mixed acid are prepared;

[0021] (3) In a constant temperature environment of 25°C, add 3.5 liters of surfactant prepared in step (1) to the 110 liters of mixed acid prepared in step (2), at a rate of 1 liter per minute, stir evenly and let stand to prepare into aluminum alloy surfac...

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PUM

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Abstract

The invention relates to the field of the preparation of a surface treatment fluid, and especially relates to a preparation method of an aluminium alloy surface treatment fluid. By using the aluminium alloy surface treatment fluid prepared by the present method, an oxidation film, a passivation film and oil contamination can be effectively removed from a surface of an aluminium alloy product at room temperature. The cleaned surface of the aluminium alloy is silver and shiny. According to the invention, the aluminium alloy surface treatment fluid has advantages of high cleaning and degreasing speed, thorough cleaning and degreasing effect, lasting cleaning effect, low usage cost, wide process range and operational simplicity, and is able to be widely applied to cleaning and decontamination of the surface of metal such as aluminium, aluminium alloy, copper, and copper alloy.

Description

technical field [0001] The invention relates to the field of preparation of surface treatment liquid, in particular to a preparation method of aluminum alloy surface treatment liquid. Background technique [0002] At present, most of the aluminum alloy surface treatment liquids on the market are prepared by foreign technology, and the price has remained high. However, domestically prepared aluminum alloy surface treatment liquids are used in a large amount for cleaning, and the cleaning effect is not very satisfactory. [0003] The invention relates to a method for preparing an aluminum alloy surface treatment solution. The aluminum alloy surface treatment solution prepared by the method can effectively remove oxide films, passive films and oil stains on the surface of aluminum alloy products at normal temperature. The surface of the cleaned aluminum alloy is silvery and shiny. The aluminum alloy surface treatment liquid cleans and degreases quickly and thoroughly, and has...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23G1/12
CPCC23G1/125
Inventor 王国祥
Owner SUZHOU BOYANG CHEM