Stator silicon-steel sheet and rolling method thereof
A silicon steel sheet and stator technology, applied in metal rolling and other directions, can solve the problems of unable to meet the increasingly high requirements of wind turbine stator, no heat dissipation structure on the outer layer, affecting the working efficiency of the motor, etc., to achieve a good economic and social benefits, improve magnetic properties, and solve the conflicting effects of processes
Inactive Publication Date: 2017-03-08
徐君康
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Problems solved by technology
[0003] In the past, the outer layer of the stator silicon steel sheet and its rolling method has no heat dissipation structure, and the stator made of it has the disadvantage of poor heat dissipation performance, which affects the working efficiency of the entire motor
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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[0021] see figure 1 and figure 2 , the present invention relates to a stator silicon steel sheet, comprising a silicon steel sheet body 1, the inner side of the silicon steel sheet body 1 has holes for installing coils, and the outer side has extended fins 2 for heat dissipation, the silicon steel sheet body 1 is a square or octagonal structure, the silicon steel sheet body 1 The chemical composition 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 0.10~0.15 wt%, Al 0.05~0.06wt%, the rest is Fe.
[0022] A rolling method of a stator silicon steel sheet, the rolling steps of the method are:
[0023] 1) The first rolling pass:
[0024] 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 thic...
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Abstract
The invention relates to a stator silicon-steel sheet and a rolling method thereof. The stator silicon-steel sheet is characterized by comprising a silicon-steel sheet body (1), wherein holes used for mounting a coil are formed in the inner side of the silicon-steel sheet body (1); extending fins (2) for radiating heat are arranged on the outer side of the silicon-steel sheet body (1); and the silicon-steel sheet body (1) adopts a square or octagonal structure. According to the stator silicon-steel sheet and the rolling method thereof, materials can be well utilized during production and cutting processes and cannot be wasted; and meanwhile through an improvement on the materials of the silicon-steel sheet, the iron loss of the silicon-steel sheet is reduced, the magnetic induction intensity of the silicon-steel sheet can be remarkably increased, the problem of mutual contradiction between a process for reducing the iron loss and a process for increasing the magnetic induction intensity in the prior art is solved, and the magnetic properties of the silicon-steel sheet are remarkably improved; and owing to low iron loss and high magnetic induction intensity of the silicon-steel sheet, the consumption can be reduced, a great amount of electric power is saved, and the silicon-steel sheet has good economic and social benefits.
Description
technical field [0001] The invention relates to a silicon steel sheet, in particular to a stator silicon steel sheet and a rolling method thereof, belonging 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] In the past, the outer layer of the stator silicon steel sheet and its rolling method has no heat dissipation structure, and the stator made of it has the disadvantage of poor heat dissipation performance, which affects the working efficiency of the entire motor. 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 ...
Claims
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IPC IPC(8): B21B1/08C22C38/16
Inventor 徐君康
Owner 徐君康