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E-shaped silicon steel sheet and rolling method therefor

A technology of silicon steel sheet and rolling force, applied in the field of silicon steel sheet, E-type silicon steel sheet and its rolling, can solve the problem that it cannot meet the increasingly high requirements of the stator of wind turbines, and can not make good use of materials and silicon steel sheets. The problem of high iron loss value can achieve good economic and social benefits, improve magnetic properties, and reduce iron loss value.

Inactive Publication Date: 2017-03-08
徐君康
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Problems solved by technology

[0003] The traditional silicon steel sheet for motors has a C-shaped cross-section, which cannot make good use of the material during the production and cutting process, and the material discharge utilization rate is 100%, resulting in a lot of waste
At the same time, the iron loss value of the previous silicon steel sheet is relatively high, which cannot meet the increasingly high requirements of the wind turbine stator

Method used

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  • E-shaped silicon steel sheet and rolling method therefor

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Embodiment Construction

[0020] see figure 1 , the present invention relates to an E-type silicon steel sheet, which includes a silicon steel sheet body 1, the silicon steel sheet body 1 is E-shaped, and the chemical composition of the silicon steel sheet is: C 0.04~0.05wt%, Si 3.20~3.80wt%, Mn 0.06 ~0.07wt%, P 0.010~0.017wt%, S 0.004~0.005wt%, Sn 0.08~0.128wt%, Cu 0.10~0.15wt%, Al 0.05~0.06wt%, and the rest is Fe.

[0021] A rolling method of an E-type silicon steel sheet, the rolling steps of the method are:

[0022] 1) The first rolling pass:

[0023] The silicon steel sheet to be rolled is rolled in the first pass at room temperature by using a 16-roll mill. The mechanical parameters of the first pass are: the left tension is 1.665~1.865KN, the right tension is 2.156~2.356KN, The rolling force is 293.920~303.920KN, and the thickness of the silicon steel sheet after the first rolling is 0.075~0.095mm;

[0024] 2) The second rolling pass:

[0025] The silicon steel sheet rolled in the first pass...

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Abstract

The invention relates to an E-shaped silicon steel sheet and a rolling method therefor. The E-shaped silicon steel sheet is characterized by comprising a silicon steel sheet body (1), wherein the silicon steel sheet body (1) is E-shaped. According to the I-shaped silicon steel sheet and the rolling method therefor, the material can be well utilized in the production and cutting process; the material utilization ratio is 100%, so that waste is avoided; meanwhile, the gap of the silicon steel sheet is wound with copper wires, so that an alternating current magnetic field can be generated, and current can be induced in a secondary coil; at the same time, by improving the material of the silicon steel sheet, the iron loss value of the silicon steel sheet is lowered while the magnetic induction intensity also can be remarkably improved; the problem of technological contradiction between reduction of iron loss and improvement of magnetic inductance in the prior art is solved; the magnetic performance of the silicon steel sheet is remarkably improved; and by virtue of the low loss and high magnetic inductance of the silicon steel sheet, consumption can be lowered and a large amount of electric power can be reduced, so that the E-shaped silicon steel sheet has high economic and social benefits.

Description

technical field [0001] The invention relates to a silicon steel sheet, in particular to an E-type silicon steel sheet and a rolling method thereof, and belongs to the field of electromechanical technology. Background technique [0002] Silicon steel sheet is a kind of silicon-iron soft magnetic alloy with extremely low carbon content. Generally, the silicon content is 0.5-4.5%. Adding silicon can increase the resistivity and maximum magnetic permeability of iron. It is mainly used to make various transformers, motors and The iron core of the generator. [0003] The traditional silicon steel sheet for motors has a C-shaped cross-section, which cannot make good use of the material during the production and cutting process, and the material discharge utilization rate is 100%, resulting in a lot of waste. At the same time, the iron loss value of the previous silicon steel sheet is relatively high, which cannot meet the increasingly high requirements of the wind turbine stator. ...

Claims

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Application Information

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IPC IPC(8): H01F3/02H01F1/147H01F27/245B21B3/02
Inventor 徐君康
Owner 徐君康
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