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A kind of chemical polishing agent and its application

A technology of chemical polishing and catalyst, which is applied in the field of chemical polishing agent and its application, can solve the problems such as the temperature rise of polishing liquid, the damage of inorganic acid to the human body, and the impact on the service life of polishing liquid, so as to achieve the reduction of decomposition rate, wide application range, and improvement The effect of polishing speed and rust removal ability

Active Publication Date: 2017-01-04
SHENZHEN BSF TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned inventions all contain inorganic acids, which release a large amount of hydrogen gas during the polishing process. After the gas is generated from the metal surface, it breaks and generates high instantaneous heat, which leads to a sharp rise in the temperature of the polishing solution. After polishing, a large amount of copper sulfate crystals are produced. Sulphate decomposition affects the service life of the polishing fluid, and inorganic acids can cause damage to the human body. The present invention aims to solve the above problems

Method used

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  • A kind of chemical polishing agent and its application
  • A kind of chemical polishing agent and its application
  • A kind of chemical polishing agent and its application

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0019] Preparation method of chemical polishing agent:

[0020] Weigh successively water, catalyst at normal temperature and stir to dissolve transparently according to parts by weight, under the condition of continuous stirring, successively weigh acidic rust removal mixture, complexing agent, corrosion inhibitor, leveling and brightening agent, stir and compound evenly, until it dissolves completely evenly, Form a rust-removing brightener;

[0021] Weighing water and polishing stabilizer in order according to parts by weight, stirring and mixing uniformly at room temperature, adding an oxidizing agent under continuous stirring conditions, to obtain a polishing additive;

[0022] Mix the above-mentioned rust-removing brightener and polishing additive in order, and after stirring evenly, the finished chemical polishing agent is obtained.

Embodiment 1--4

[0024] Table 1: Examples 1-4

[0025]

[0026]

Embodiment 5--8

[0028] Table 2: Examples 5-8

[0029]

[0030]

[0031]

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Abstract

The invention relates to a polishing agent, which comprises the following raw materials in parts by weight: 21 parts of an acid rust removal mixture, 0.75 parts of a catalyst, 1.6 parts of a complexing agent, 0.8 parts of a leveling and brightening agent, 2 parts of a corrosion inhibitor, and 20 parts of an oxidizing agent. 14 parts of polishing stabilizer, 142 parts of water, put the copper workpiece to be polished into the polishing solution at room temperature and soak for 0.5-3 minutes, so that it can fully contact with the polishing solution to achieve the best polishing effect. The polishing agent of the present invention cleans copper workpieces. After cleaning, the surface has a mirror-level effect, has a long cleaning life and good stability, and is suitable for deoxidation and brightening treatment of pure copper, brass, bronze and various cast copper alloys. Polishing process No yellow smoke comes out, no toxic and harmful substances are generated in the cleaning waste liquid, and the environment is friendly.

Description

technical field [0001] The object of the present invention is to provide a kind of chemical polishing agent, and its application on copper and copper alloy. Background technique [0002] Copper has the characteristics of soft texture, good ductility, light weight, and easy processing. It is widely used in various fields such as aerospace, hardware manufacturing, electronic devices, daily necessities, and marine transportation. However, due to the influence of the nature of copper, its processed parts will be exposed to the atmosphere for a long time and will be destroyed by air, SO 2 、H 2 S, C0 2 and NH 3 and other gases oxidize to form Cu 2 0, up to CuC0 3 3Cu(OH) 2 , basic copper sulfate [CuS0 4 3Cu(OH) 2 ], cuprous sulfide, so that copper is corroded and damaged, which cannot meet people's requirements for the integrity, decoration, aesthetics and practicability of copper processing parts. Chromate (or dichromate) is used in the anti-corrosion of copper and its al...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23F3/06
Inventor 冉有仁
Owner SHENZHEN BSF TECH CO LTD
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