A Processing Method for Improving Edge Properties of Low Temperature High Magnetic Induction Grain Grained Silicon Steel
A technology of high magnetic induction orientation and processing method, applied in metal material coating process, solid diffusion coating, coating and other directions, which can solve the problems of uneven grain size and abnormal magnetic properties of the edge.
Active Publication Date: 2018-10-16
SHOUGANG ZHIXIN QIAN AN ELECTROMAGNETIC MATERIALS CO LTD
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Problems solved by technology
[0004] The invention solves the technical problem of abnormal magnetic properties of the edge caused by line crystals and uneven grain size at the edge of the strip steel by providing a processing method for improving the edge performance of low-temperature high-magnetic-induction oriented silicon steel
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Embodiment Construction
[0026] The embodiment of the present invention provides a processing method for improving the edge properties of low-temperature high-magnetic-induction oriented silicon steel, which solves the technical problem of abnormal edge magnetic properties and plate shape caused by line crystals and uneven grain sizes at the edge of the strip steel, and obtains The edge quality of the finished strip is good.
[0027] In order to solve the above technical problems, the general idea of the embodiments of the present invention is as follows:
[0028] The invention provides a processing method for improving the edge properties of low temperature high magnetic induction oriented silicon steel, which includes continuous casting, hot rolling, normalization, cold rolling, decarburization annealing, nitriding, coating annealing separator, high temperature annealing, coating layer and stretch level annealing, where:
[0029] In the continuous casting process, the equiaxed grain rate η of the...
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Abstract
The invention discloses a machining method for improving the low-temperature high-magnetic-strength oriented silicon steel edge performance, and belongs to the technical field of oriented silicon steel manufacturing. The machining method comprises the steps of steelmaking, continuous casting, hot rolling, normalizing, cold rolling, decarburizing annealing, nitriding, annealing isolation agent coating, high temperature annealing, coating and stretching smooth annealing; according to the continuous casting process, the casting blank isometric crystal rate eta is 10% to 40%, and the continuous casting molten steel superheat degree is 10 DEG C to 30 DEG C; and the nitriding temperature is 790 DEG C to 980 DEG C, and the total N content [N] in strip steel obtained after nitriding is N1 to 330 ppm. By means of the method, the inhibitor forming depth and uniformity are guaranteed, the strip steel edge magnetic property abnormity caused by uneven linear crystals and grains is effectively controlled, the finished product strip steel edge quality is good, and the magnetic property is excellent
Description
technical field [0001] The invention relates to the technical field of oriented silicon steel manufacturing, in particular to a processing method for improving the edge performance of low-temperature high-magnetic-inductive oriented silicon steel. Background technique [0002] High magnetic induction grain-oriented silicon steel is an important electrical soft magnetic material, mainly used in the manufacture of large-scale power transformers and high-efficiency energy-saving transformer cores. The uniformity of the performance of the grain-oriented strip steel is the most basic guarantee condition for the stable performance and safe operation of the transformer. There are two types of traditional high magnetic induction grain oriented silicon steel: high temperature process and low temperature process. The low temperature high magnetic induction oriented silicon steel process is one of the main processes for the production of high magnetic induction oriented silicon steel ...
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IPC IPC(8): C21D8/12C23C8/26B22D11/16C22C38/34C22C38/04C22C38/06C22C38/20
CPCB22D11/16C21D8/1222C21D8/1233C21D8/1244C21D8/125C21D8/1255C21D8/1283C22C38/008C22C38/04C22C38/06C22C38/20C22C38/34C23C8/26
Inventor 王现辉高倩马家骥龚坚黎先浩司良英赵松山赵鹏飞
Owner SHOUGANG ZHIXIN QIAN AN ELECTROMAGNETIC MATERIALS CO LTD