Non-oriented electrical steel plate with excellent magnetic performance and continuous annealing method thereof

A technology for oriented electrical steel sheets and magnetic properties, applied in the field of steel sheets and their manufacturing processes, can solve problems such as the effects of cold rolling

Inactive Publication Date: 2020-12-29
BAOSHAN IRON & STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, if the above technical solution is taken as the premise, in this technical solution, P with a content of 0.03-0.20% needs to be added to adjust the crystal texture and mechanical properties of the steel, but this will significantly affect the cold rolling process. Impact

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  • Non-oriented electrical steel plate with excellent magnetic performance and continuous annealing method thereof
  • Non-oriented electrical steel plate with excellent magnetic performance and continuous annealing method thereof
  • Non-oriented electrical steel plate with excellent magnetic performance and continuous annealing method thereof

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Embodiment Construction

[0058] The non-oriented electrical steel sheet with excellent magnetic properties and its continuous annealing process described in the present invention will be further explained and described below in conjunction with the accompanying drawings and specific examples. However, the explanation and description do not constitute inappropriate technical solutions of the present invention. limited.

[0059] The conventional electrical steel sheets of each comparative example and the non-oriented electrical steel sheets of the embodiments were prepared by the following steps:

[0060] (1) Use molten iron and steel scrap to mix according to the chemical composition shown in Table 1. After smelting in the converter, then RH refining for decarburization and deoxidation alloying. 1400mm wide continuous casting slab.

[0061] (2) Hot rolling.

[0062] (3) Normalization.

[0063] (4) Cold rolling.

[0064] (5) Continuous annealing.

[0065] (6) The final product is obtained after the...

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Abstract

The invention discloses a non-oriented electrical steel plate with excellent magnetic performance. The non-oriented electrical steel plate comprises, by mass, greater than 0 and smaller than or equalto 0.004% of C, 0.1-3.5% of Si, 0.1-2.5% of Mn, 0.001-3.5% of Al, 0.001-0.1% in total of one or both of Sb and Sn, 0.0005-0.01% in total of one or more of Ca, Mg and RE, and the balance Fe and other inevitable impurities. In addition, the invention discloses a continuous annealing process and manufacturing method of the non-oriented electrical steel plate with excellent magnetic performance. The manufacturing method comprises the following steps: smelting and casting, hot rolling, normalizing, cold rolling, implementation of the continuous annealing process, and covering with an insulating coating, thereby obtaining the non-oriented electrical steel plate with excellent magnetic performance.

Description

technical field [0001] The invention relates to a steel plate and its manufacturing process, in particular to a non-oriented electrical steel plate and its continuous annealing method. Background technique [0002] Non-oriented electrical steel sheets are important metal functional materials for manufacturing motors, generators, ballasts, small transformers, and various electrical components. In recent years, with the rapid growth of people's demand for household appliances and mechanical and electrical products, and the increasingly urgent social demand for energy saving, environmental protection, and high efficiency, the manufacturing capacity and product quality of non-oriented electrical steel sheets have made great strides. progress. [0003] In particular, with the technological progress of electrical steel production enterprises, the magnetic induction and iron loss indicators of steel plates have been continuously optimized and improved. [0004] For example, for s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/06C22C38/60C21D8/12C21D1/26
CPCC21D1/26C21D8/1244C22C38/002C22C38/004C22C38/005C22C38/008C22C38/02C22C38/04C22C38/06C22C38/60
Inventor 刘宝军张峰陈晓李国保储双杰王波
Owner BAOSHAN IRON & STEEL CO LTD
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