Vertical type oxidization wire recycled and reusable two-acid polishing solution and preparation method thereof

A cyclic recovery and oxidation line technology, applied in the polishing field, can solve the problems of respiratory system damage, incomplete cleaning, corrosion of mechanical equipment, etc., and achieve the effect of low polishing cost

Active Publication Date: 2018-02-09
FOSHAN HAIHUA SURFACE TREATMENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this polishing solution, nitric acid acts as a corrosion inhibitor. Nitric acid is oxidizing and reacts with aluminum during use and is reduced to brown-yellow nitrogen dioxide gas. Nitrogen dioxide is harmful to the respiratory system of the operator. Causes serious injuries, and nitrogen dioxide also corrodes machinery in factories
In addition, because the three-acid polishing operation is generally carried out at about 100 ° C, nitric acid is easy to volatilize and decompose, and the consumption rate of nitric acid is usually too fast, and its content needs to be analyzed and added frequently, resulting in a relatively ...

Method used

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  • Vertical type oxidization wire recycled and reusable two-acid polishing solution and preparation method thereof
  • Vertical type oxidization wire recycled and reusable two-acid polishing solution and preparation method thereof
  • Vertical type oxidization wire recycled and reusable two-acid polishing solution and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A vertical oxidation line that can recycle and reuse two acid polishing fluids: 50kg phosphoric acid, 30kg sulfuric acid, 0.01kg 12-tungstosilicate, 0.01kg 12-silicon molybdenum acid, 0.01kg hydrogen peroxide, diethylenetriaminepenta 0.01kg of methylphosphonic acid, 0.01kg of zinc dihydrogen phosphate, 0.001kg of magnesium sulfate, 0.001kg of copper sulfate, 0.001kg of dodecylbenzenesulfonic acid, and 19.947kg of water.

[0034] The above preparation method is as follows:

[0035] Step (1): Weigh each component in Example 1 respectively, dissolve diethylene triamine pentamethylene phosphonic acid, zinc dihydrogen phosphate, magnesium sulfate, copper sulfate, and dodecylbenzenesulfonic acid in water, Get the solution for later use.

[0036] Step (2): Add phosphoric acid, sulfuric acid, 12-tungstosilicic acid and 12-silicomolybdic acid into the reaction vessel, then add the solution in step (1) into the reactor and stir evenly.

[0037] Step (3): Add hydrogen peroxide u...

Embodiment 2

[0039] Phosphoric acid 50kg, sulfuric acid 30kg, 12-tungstosilicate 0.01kg, 12-silicomolybdic acid 0.01kg, hydrogen peroxide 0.01kg, diethylenetriaminepentamethylenephosphonic acid 0.01kg, zinc dihydrogen phosphate 0.01kg, magnesium sulfate 0.001kg, copper sulfate 0.001kg, sodium lauryl sulfate 0.001kg, water 19.947kg.

Embodiment 3

[0041] Phosphoric acid 60kg, sulfuric acid 30kg, 12-tungstosilicate 0.25kg, 12-silicomolybdic acid 0.25kg, hydrogen peroxide 0.25kg, diethylenetriaminepentamethylenephosphonic acid 0.25kg, zinc sulfate 0.11kg, magnesium sulfate 0.025kg , copper sulfate 0.025kg, dodecylbenzenesulfonic acid 0.025kg, water 8.815kg.

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Abstract

The invention relates to vertical type oxidization wire recycled and reusable two-acid polishing solution and a preparation method thereof. The polishing solution comprises the following components inparts by mass: 50-70 parts of phosphoric acid, 30-50 parts of sulfuric acid, 0.01-0.5 part of heteropolyacid compound, 0.01-0.5 part of a catalyst, 0.01-0.5 part of a chelating agent, 0.01-0.2 part of a corrosion inhibitor, 0.001-0.05 part of sulfate, 0.001-0.05 part of a surfactant and the balance of water, wherein the total mass parts of all components are 100. The vertical type oxidization wire recycled and reusable two-acid polishing solution is applied to the polishing process of aluminum and aluminum alloy, and the polishing effect of the vertical type oxidization wire recycled and reusable two-acid polishing solution is remarkably better than that of common three-acid polishing solution.

Description

technical field [0001] The invention relates to a polishing liquid and a preparation method thereof, in particular to a recyclable and reusable two-acid polishing liquid for a vertical oxidation line and a preparation method thereof, belonging to the technical field of polishing. Background technique [0002] Due to the easy processing of aluminum and aluminum alloys and the high corrosion resistance after surface treatment, more and more aluminum alloy products are used in civil and industrial products. In order to improve the decorative performance of aluminum alloy products, it is necessary to carry out various treatments on its surface, among which chemical polishing is a treatment process that endows the surface of aluminum alloy with nobility and beauty. [0003] The traditional three-acid chemical polishing solution is composed of 70% phosphoric acid, 20% sulfuric acid, and 10% nitric acid. In this polishing solution, nitric acid acts as a corrosion inhibitor. Nitric...

Claims

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Application Information

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IPC IPC(8): C23F3/03
CPCC23F3/03
Inventor 王相刚夏良文刘国永肖茂强叶淑娴
Owner FOSHAN HAIHUA SURFACE TREATMENT TECH CO LTD
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