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Low-iron-loss automobile engine stator iron core and preparation process thereof

A technology for automobile engines and stator cores, which is applied in the manufacture of motor generators, metal material coating technology, electric components, etc., can solve problems such as power shortage and shortage of oriented silicon steel, and achieve extended service life, strong comprehensive quality, and excellent Effect of low iron loss rate

Inactive Publication Date: 2020-04-24
安徽嘀通网络科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used magnetic core material is high magnetic induction oriented silicon steel, but my country's power shortage, oriented silicon steel is seriously insufficient

Method used

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  • Low-iron-loss automobile engine stator iron core and preparation process thereof

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Effect test

Embodiment 1

[0024] A low iron loss automobile engine stator iron core, the stator iron core is a multi-layer structure, including a silicon steel sheet body, a loss-reducing outer layer, and a protective paint layer sequentially designed from the inside to the outside, and the silicon steel sheet body is made of rare earth. Borosilicate steel sheet, the thickness of the silicon steel sheet body is 0.28mm; the loss reduction outer layer is a composite alloy material, and the layer thickness is 0.025mm; the protective paint layer is a composite impregnation paint, and the layer thickness is 0.06mm.

[0025] The silicon steel sheet body includes the following components by mass percentage: Si 2.0wt%, RE 0.06%, B 0.1%, P0.1%, Mn 0.22%, Al<0.004%, S<0.004%, C<0.004%.

[0026] The composite alloy material includes iron-cobalt alloy, Fe2Ni alloy, calcium aluminate, copper phosphide, the cobalt content in the iron-cobalt alloy is 48wt%, and 13wt% of the iron source in the iron-containing alloy com...

Embodiment 2

[0030] A low iron loss automobile engine stator core, the stator core is a multi-layer structure, including a silicon steel sheet body, a loss-reducing outer layer, and a protective paint layer designed sequentially from the inside to the outside, and the silicon steel sheet body is made of rare earth Borosilicate steel sheet, the thickness of the silicon steel sheet body is 0.28mm; the loss-reducing outer layer is a composite alloy material with a layer thickness of 0.03mm; the protective paint layer is a compound dipping paint with a layer thickness of 0.04mm.

[0031] The silicon steel sheet body includes the following components in mass percentage: Si 1.8wt%, RE 0.1%, B 0.07%, P0.08%, Mn 0.23%, Al<0.004%, S<0.004%, C<0.004%.

[0032] The composite alloy material includes iron-cobalt alloy, Fe2Ni alloy, calcium aluminate, and copper phosphide. The cobalt content in the iron-cobalt alloy is 48wt%, and 15wt% of the iron source in the iron-containing alloy comes from sponge iro...

Embodiment 3

[0036] A low iron loss automobile engine stator core, the stator core is a multi-layer structure, including a silicon steel sheet body, a loss-reducing outer layer, and a protective paint layer designed sequentially from the inside to the outside, and the silicon steel sheet body is made of rare earth Borosilicate steel sheet, the thickness of the silicon steel sheet body is 0.30mm; the loss-reducing outer layer is a composite alloy material with a layer thickness of 0.04mm; the protective paint layer is a compound dipping paint with a layer thickness of 0.06mm.

[0037] The silicon steel sheet body includes the following components in mass percentage: Si 1.8wt%, RE 0.06%, B 0.06%, P0.08%, Mn 0.23%, Al<0.004%, S<0.004%, C<0.004%.

[0038] The composite alloy material includes iron-cobalt alloy, Fe2Ni alloy, calcium aluminate, and copper phosphide. The cobalt content in the iron-cobalt alloy is 48wt%, and 10wt% of the iron source in the iron-containing alloy comes from sponge ir...

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Abstract

The invention provides a low-iron-loss automobile engine stator iron core and a preparation process thereof. The stator iron core is of a multi-layer structure and comprises a silicon steel sheet body, a loss reduction outer layer and a protective paint layer which are sequentially designed from inside to outside. The silicon steel sheet body is a rare earth boron silicon steel sheet, and the thickness of the silicon steel sheet body is 0.28-0.30 mm. The loss reduction outer layer is made of a composite alloy material, and the thickness of the loss reduction outer layer is 0.02-0.04 mm. The protective paint layer is compound impregnating varnish, and the thickness of the layer ranges from 0.04 mm to 0.08 mm. According to the invention, the silicon steel sheet body material and surface treatment and protection of the stator core are comprehensively improved and proportioned, so that the mechanical property and the corrosion resistance of the stator iron core are effectively improved, excellent low iron loss rate is achieved, the hysteresis loss and the eddy current loss are reduced by 22% and 19.3% respectively, the comprehensive quality of the stator iron core is higher, economic benefits are effectively improved, and meanwhile the service life is obviously prolonged.

Description

technical field [0001] The invention relates to the technical field of engine stator iron cores, in particular to a low iron loss automobile engine stator iron core and a preparation process thereof. Background technique [0002] As power equipment, electric motors have been widely used in all walks of life, especially in the refining and chemical industry. As the main driving equipment, electric motors drive important links such as oil transportation, cooling circulation, and air hoisting in the entire refinery. Therefore, to ensure that the electric motor normal operation is particularly important. In the process of use, due to the poor quality or damage of the stator core of the AC motor, the efficiency and power factor will be reduced, resulting in local overheating of the core and causing the temperature to rise, and even burn out the armature of the entire motor in severe cases. Winding, resulting in short-circuit and other shutdown accidents, and now, it is not uncom...

Claims

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Application Information

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IPC IPC(8): H02K1/02H02K1/12H02K15/12C22C38/06C22C38/04C22C38/02C22C30/02C22C1/02C22C1/10C23C4/06C23C4/134C09D163/00C09D167/08C09D179/08C09D5/08C09D5/16
CPCH02K1/02H02K1/12H02K15/12C22C38/06C22C38/04C22C38/02C22C38/005C22C38/002C22C30/02C22C19/07C22C1/1036C23C4/06C23C4/134C09D163/00C09D167/08C09D179/08C09D5/08C09D5/1662C08L2205/035C08L2203/20C22C1/1047C08L67/08C08L79/08C08L63/00
Inventor 戴王兵
Owner 安徽嘀通网络科技有限公司
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