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Medium manganese steel hot dipping method

A technology of hot-dip plating and manganese steel, applied in hot-dip plating process, metal material coating process, coating and other directions, can solve problems such as poor coating quality

Active Publication Date: 2017-10-27
SHOUGANG CORPORATION
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Problems solved by technology

[0006] The embodiment of the present invention provides a method for hot-dip coating of medium manganese steel, which is used to improve the technical problem of poor coating quality due to the easy formation of oxides during the heat treatment process of the prior art medium manganese steel hot-dip coating method

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Embodiment Construction

[0029] The embodiment of the present invention provides a method for hot-dip coating of medium manganese steel, which is used to improve the technology of poor coating quality due to the easy formation of oxides in the heat treatment process of the prior art medium manganese steel hot-dip coating method question.

[0030] In order to solve the technical problems in the above-mentioned prior art, the general idea of ​​the technical solution provided by the embodiment of the present application is as follows:

[0031] A method for hot-dipping medium manganese steel, the mass fraction of elements in the medium manganese steel is: 0.5%≥[C]≥0.1%, 2.0%≥[Si]≥0.2%, 10%≥[Mn]≥ 4%, 2%≥[Al]≥0.2%, the method includes: covering the surface of the medium manganese steel with an alloy coating layer, wherein the melting point of the alloy coating layer is higher than 1000°C; The covered medium manganese steel is subjected to heat treatment; the heat treated medium manganese steel is immersed ...

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Abstract

The embodiment of the invention discloses a medium manganese steel hot dipping method. Medium manganese steel comprises the following elements in percentage by mass: less than or equal to 0.5% and more than or equal to 0.1% of [C], 2.0% and more than or equal to 0.2% of [Si], 10% and more than or equal to 4% of [Mn], and 2% and more than or equal to 0.2% of [Al], the method comprises the following steps: covering an alloy coating layer on the surface of the medium manganese steel, wherein the melting point of the alloy coating layer is higher than 1000DEG C; performing thermal treatment to the covered medium manganese steel; and dipping the medium manganese steel subjected to thermal treatment into molten metal for hot dipping treatment. By adopting the method, the technical problem that the quality of the plated layer is poor as oxides are easily formed during thermal treatment process by adopting the medium manganese steel hot dipping method in the prior art can be solved.

Description

technical field [0001] The invention relates to the technical field of steel rolling, in particular to a method for hot-dipping medium manganese steel. Background technique [0002] Medium-manganese steel belongs to the third-generation high-strength steel for automobiles. It has the characteristics of high strength and plasticity, high strength, and excellent formability. It is considered to be the next-generation automobile steel. The general production process of medium manganese steel is as follows: first heat the slab, then rough and finish rolling to obtain a hot-rolled plate, then cool the hot-rolled plate, and coil it into a hot-rolled coil after cooling; Coils are cold rolled to obtain chilled coils; the chilled coils are heat treated, then flattened and finally coiled into finished products. [0003] In the prior art, in order to improve the corrosion resistance of medium manganese steel, it is usually necessary to carry out surface hot-dip coating on the medium m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C2/02C23C2/40C22C38/04C22C38/02C22C38/06
CPCC22C38/02C22C38/04C22C38/06C23C2/02C23C2/40
Inventor 蒋光锐王海全刘广会刘华赛韩赟李研
Owner SHOUGANG CORPORATION
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