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Annealing separant for high-magnetic-induction oriented silicon steel and preparation method thereof

An annealing release agent and high magnetic induction orientation technology, which is applied in the field of release agent and preparation for silicon steel, can solve the problems of uneven atmosphere and increased dew point, and achieve the effects of good insulation performance, reduced yield ratio, and excellent magnetic induction performance

Active Publication Date: 2015-12-16
武汉钢铁有限公司
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Problems solved by technology

The water vapor is thus brought into the coil, and thus the dew point between the plates increases, and the atmosphere in the length and width directions is not uniform.

Method used

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  • Annealing separant for high-magnetic-induction oriented silicon steel and preparation method thereof
  • Annealing separant for high-magnetic-induction oriented silicon steel and preparation method thereof
  • Annealing separant for high-magnetic-induction oriented silicon steel and preparation method thereof

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Embodiment Construction

[0022] The present invention is described in detail below:

[0023] Table 1 is the raw material composition and content list of each embodiment of the present invention and comparative example;

[0024] Table 2 is the main process parameter value list of each embodiment of the present invention and comparative example;

[0025] Table 3 is a list of the performance test results of each embodiment of the invention and the comparative example.

[0026] Each embodiment of the present invention is produced according to the following steps:

[0027] 1) Mix MgO and water, the ratio of MgO to water is 1:8~15, and stir well and evenly; control Mg(OH) 2 Amount <1.5%;

[0028] 2) Add TiO according to 1~6% 2 , and stir well and evenly;

[0029] 3) Add Sb according to 0.1~2% 2 (SO 4 ) 3， and stir;

[0030] 4) Sb 2 (SO 4 ) 3 After the addition, continue to stir for no less than 2 hours;

[0031] 5) Standby.

[0032] The data of each embodiment in Table 1 and Table 2 are not in...

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Abstract

The invention relates to an annealing separant for high-magnetic-induction oriented silicon steel, which is composed of the following raw materials in percentage by weight: 1-6% of TiO2, 0.1-2% of Sb2(SO4)3 and the balance of MgO. Water is additionally added, wherein the MgO:water ratio is 1:(8-15). The preparation method comprises the following steps: mixing the MgO and water; adding TiO2, and stirring sufficiently and uniformly; adding the Sb2(SO4)3, and stirring; and continuing stirring for not less than 2 hours for later use. The annealing separant enables the high-magnetic-induction oriented silicon steel to have favorable magnetic induction property and bottom quality, has favorable insulating property, is suitable for the operating requirements of high-capacity transformers, and can lower the concession rate of the product.

Description

technical field [0001] The invention relates to an isolation agent for silicon steel and a preparation method, in particular to an annealing isolation agent for high magnetic induction oriented silicon steel and a preparation method. Background technique [0002] Oriented silicon steel is widely used as magnetic core material for transformers. Magnetic core material requires magnetic flux density (B 8 ) high, iron loss (P 17 / 50 )Low. In recent years, transformers have been developing in the direction of extra-large size. At the same time, transformers are required to be miniaturized and meet the requirements of national energy saving and resource saving. Therefore, it is urgent to use oriented silicon steel with high magnetic induction, which is conducive to reducing losses and reducing transformers. volume. [0003] To meet this requirement, Sn or Sb elements are added to the steel sheet as a method for increasing the magnetic induction intensity of grain-oriented silic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/70
Inventor 刘婷骆忠汉杨皓胡守天郭小龙
Owner 武汉钢铁有限公司
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