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

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...

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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 large gloss fluctuation between batches of aluminum alloy workpieces. Large, also not conducive to automatic line continuity operation

[0004] After metal utensils are processed, a layer of oil or other chemical preparations are usually attached to the surface. After the utensils are used for a period of time, the corrosion of the use environment will cause rust on the surface. In order to look beautiful and prolong the service life, special metal cleaning agents or polishing are often used. However, the existing polishing agent products have the problems of quick rust return, narrow applicable metal types, and incomplete cleaning.

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