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Anti-oxidation decarburized coating in process of billet rolling and preparation method thereof

A rolling process and anti-oxidation technology, applied in the field of anti-oxidation and decarbonization coatings and their preparation, can solve the problems of human health hazards, occupation of large sites, pollution of the surrounding environment, etc., to solve pollution problems, reduce oxidation rate and carbon loss , the effect of reducing production costs

Inactive Publication Date: 2010-10-13
PANGANG GROUP VANADIUM TITANIUM & RESOURCES +3
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AI Technical Summary

Problems solved by technology

[0005] my country's current annual discharge of vanadium extraction tailings exceeds 300,000 tons, which not only requires a large number of sites for treatment, but soluble Cr 6+ , V 5+ It is also harmful to human health and causes great pollution to the surrounding environment.

Method used

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  • Anti-oxidation decarburized coating in process of billet rolling and preparation method thereof
  • Anti-oxidation decarburized coating in process of billet rolling and preparation method thereof

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Embodiment 1

[0020] According to the weight ratio in Table 1, three kinds of anti-oxidation and decarburization coatings were prepared respectively. The vanadium-extracted tailings were roasted at 1200 °C for 3 hours. , and made into a viscous suspension fluid, the anti-oxidation and decarburization coating product can be obtained. The chemical composition of the vanadium extraction tailings used is: TiO 2 11.0%, Al 2 o 3 3.2%, SiO 2 14.4%, MnO 2 7.2%, Fe 2 o 3 45.2%, V 2 o 5 1.5%, Cr 2 o 3 1.9%, and the rest are unavoidable impurities.

[0021] Table 1 Anti-oxidation decarburization coating raw material weight ratio

[0022]

[0023] Brush the billet anti-oxidation and decarburization paint prepared above on the surface of the heavy rail steel test piece (the heavy rail steel test piece must be cleaned and degreased before painting, and then the pretreatment liquid is applied to increase the adhesion of the paint and the steel billet force, the pretreatment liquid is ...

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Abstract

The invention belongs to the technical field of inorganic non-metal materials, and in particular relates to an anti-oxidation decarburized coating in the process of billet rolling and a preparation method thereof. The invention provides a low-cost and good-performance anti-oxidation decarburized coating in the process of billet rolling, which comprises the following raw materials in parts by weight: 20-60 parts of vanadium extraction tailings, 0-40 parts of agglutinant and 30-60 parts of binding agent. The coating is used in the process of billet rolling, can effectively reduce the oxidation rate and carbon loss of billets and can improve the heating efficiency of a heating furnace for the billets. The preparation method is a solution to the problem of pollution of vanadium extraction tailings, and can reduce the production cost of the anti-oxidation decarburized coating by changing the tailings into valuables.

Description

technical field [0001] The invention belongs to the technical field of inorganic non-metallic materials, and in particular relates to an anti-oxidation and decarburization coating in the steel billet rolling process and a preparation method thereof. Background technique [0002] The billet needs to be heat treated in a heating furnace before rolling. During the high temperature heat treatment, the surface of the billet is easily oxidized and decarburized, which not only affects the surface quality of the billet, but also increases the rolling loss of the steel. At present, there are two solutions, one is to spray high-temperature resistant anti-oxidation and decarburization coating on the surface of the billet, and the other is to fill the heating furnace with protective gas (such as nitrogen, argon, etc.) for heat treatment, the purpose of which is to Oxygen is isolated from the furnace atmosphere. High temperature resistant anti-oxidation and decarburization coatings have...

Claims

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Application Information

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IPC IPC(8): C04B35/66
Inventor 郝建璋洪俊辉
Owner PANGANG GROUP VANADIUM TITANIUM & RESOURCES
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