Anti-corrosion and heat tinting composite surface treating method for steel

A composite surface treatment and anti-corrosion technology, which is applied in the direction of surface polishing machine tools, coatings, metal material coating processes, etc., can solve the problems of single surface color and poor decoration, and achieve low raw material costs, low product costs, and adaptability wide range of effects
CN101353801AInactive Publication Date: 2009-01-28余煌
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
余煌
Publication Date
2009-01-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method for treating the anti-corrosion and oxidized and colored composite surface of steel, and pertains to the metal material surface treatment technical field. Derusting and polishing are first carried out to a steel material so as to lead the roughness degree of the material surface to reach the requirement, and pre-oxidation is carried out to the treated blank; the pre-oxidated blank is put into a salt bath furnace to react and then a carburizing salt residual on the surface is washed off, or the pre-heated blank is put into an atmosphere of ammonia and ethanol to react, the blank for carburizing treatment is vibrantly polished, and polishing wax or grease residual on the surface is cleaned; the polished blank is put into tempering atmosphere for coloring, or immersed in the water solution of sodium hydroxide and sodium nitrite to be colored, and finally, sealing treatment is carried out. The method of the invention can cause that the colored composite film of the steel surface has the excellent performances of wear resistance and anti-corrosion, and the products prepared by the steel material of the invention have good ornamental performance. The method of the invention has simple technology process, low product cost, and no environmental pollution, does not change external dimension of the products, and can be used for coloring treatment of various carbon steels and alloy steels.
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Description

technical field

[0001] The invention relates to a steel anti-corrosion and oxidation coloring composite surface treatment method, which belongs to the technical field of metal material surface treatment. Background technique

[0002] There are many ways to modify the surface of steel materials or steel parts, the purpose of which is mainly to improve the wear resistance and corrosion resistance of steel materials. Commonly used treatment techniques are: bluing, phosphating, surface chrome plating, salt bath nitriding or nitrocarburizing, gas nitriding, etc. Bluing, phosphating, etc. belong to the traditional surface treatment technology, mainly relying on the porous Fe formed by oxidation. 3 o 4 However, the improvement of steel properties is limited and cannot meet people's increasing requirements for steel properties. The chrome plating method is divided into two types: hard chrome plating and decorative chrome plating. Hard chrome plating is mainly used to improve the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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