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Magnetic motor slot wedge and preparation method thereof

A motor slot wedge and magnetic technology, applied in the field of motors, can solve the problems of lack of mechanical strength, inability to meet long-term use, low permeability, etc., and achieve the effects of improving efficiency and service life, reducing temperature rise and noise, and high permeability

Inactive Publication Date: 2018-07-27
安徽省旌德县江南机电配件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The magnetic slot wedges in the prior art have low magnetic permeability, and do not have sufficient mechanical strength to meet the requirements of long-term use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A magnetic motor slot wedge, whose raw materials are made of unsaturated polyester resin, internal mold release agent, tert-butyl peroxybenzoate, dibenzoyl peroxide, reduced iron powder, alkali-free glass fiber, curing agent, accelerator , multi-component iron-nickel alloy powder, iron-cobalt alloy powder, and iron-silicon alloy powder;

[0023] In terms of weight percentage, the above components are: 16% unsaturated polyester resin, 0.2% internal mold release agent, 0.9% tert-butyl peroxybenzoate, 0.3% dibenzoyl peroxide, 43% reduced iron powder , 23% alkali-free glass fiber, 1.2% diaminodiphenylmethane curing agent, 0.3% 2-methylimidazole accelerator, 1.5% iron-cobalt alloy powder, 3% iron-silicon alloy powder, and the balance is multi-element iron-nickel alloy powder ;

[0024] In terms of mass percentage content, in the multi-component iron-nickel alloy powder, the nickel content is 30%, the molybdenum content is 7%, the manganese content is 3%, the copper content ...

Embodiment 2

[0031] A magnetic motor slot wedge, whose raw materials are made of unsaturated polyester resin, internal mold release agent, tert-butyl peroxybenzoate, dibenzoyl peroxide, reduced iron powder, alkali-free glass fiber, curing agent, accelerator , multi-component iron-nickel alloy powder, iron-cobalt alloy powder, and iron-silicon alloy powder;

[0032] In terms of weight percentage, the above components are: 20% unsaturated polyester resin, 0.6% internal mold release agent, 0.9% tert-butyl peroxybenzoate, 0.6% dibenzoyl peroxide, 35% reduced iron powder , 17% alkali-free glass fiber, 1.8% diaminodiphenylmethane curing agent, 0.1% 2-methylimidazole accelerator, 3.5% iron-cobalt alloy powder, 5% iron-silicon alloy powder, and the balance is multi-element iron-nickel alloy powder ;

[0033] In terms of mass percentage content, in the multi-component iron-nickel alloy powder, the nickel content is 40%, the molybdenum content is 0.2%, the manganese content is 10%, the copper conte...

Embodiment 3

[0040] A magnetic motor slot wedge, whose raw materials are made of unsaturated polyester resin, internal mold release agent, tert-butyl peroxybenzoate, dibenzoyl peroxide, reduced iron powder, alkali-free glass fiber, curing agent, accelerator , multi-component iron-nickel alloy powder, iron-cobalt alloy powder, and iron-silicon alloy powder;

[0041] In terms of weight percentage, the above components are: 17% unsaturated polyester resin, 0.3% internal mold release agent, 0.8% tert-butyl peroxybenzoate, 0.5% dibenzoyl peroxide, 37% reduced iron powder , 18% alkali-free glass fiber, 1.3% diaminodiphenylmethane curing agent, 0.1% 2-methylimidazole accelerator, 2% iron-cobalt alloy powder, 3.5% iron-silicon alloy powder, and the balance is multi-element iron-nickel alloy powder ;

[0042] In terms of mass percentage content, in the multi-component iron-nickel alloy powder, the nickel content is 70%, the molybdenum content is 1%, the manganese content is 4%, the copper content ...

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PUM

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Abstract

The invention relates to the technical field of motor, and in particular, relates to a magnetic motor slot wedge and a preparation method thereof. The invention provides the magnetic motor slot wedgecomprising the raw materials by the weight percentage: 16%-20% of unsaturated polyester resin, 0.2%-0.6% of an internal demoulding agent, 0.5%-0.9% of tert-butyl peroxybenzoate, 0.3%-0.6% of dibenzoylperoxide, 35%-43% of a reduced iron powder, 17%-23% of alkali-free glass fibers, 1.5%-3.5% of an iron-cobalt alloy powder, 3%-5% of an iron-silicon alloy powder and the like. The invention also provides the preparation method of the magnetic motor slot wedge. The prepared magnetic motor slot wedge has the characteristics of high magnetic conductivity, high splitting strength and high bending strength, can make the temperature rise and the noise reduce in operation of an electric generator, improves the efficiency and service life of a motor, and reduces the maintenance cost.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a magnetic motor slot wedge and a preparation method thereof. Background technique [0002] Due to the insulation and manufacturing process requirements of large and medium-sized AC high-voltage motors, the stator winding adopts formed coils, and the iron core of the stator is made into open slots. The opening of the slot will cause the change of cogging reluctance to be intensified, and the air gap magnetic density distribution will be uneven, which will increase the harmonic wave of the air gap magnetic conduction tooth, which will cause the increase of the motor excitation current, the increase of the rotor surface loss and the pulse vibration loss, resulting in The temperature rise of the motor increases and the efficiency decreases. The above-mentioned problems cannot be solved by adopting common slot wedges in large and medium-sized AC high-voltage motors. Magnetic slot we...

Claims

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Application Information

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IPC IPC(8): C08L67/06C08K13/04C08K7/14C08K3/08C08K3/02C08K5/14
CPCC08K13/04C08K3/02C08K3/08C08K5/14C08K7/14C08K2003/023C08K2003/0843C08K2003/0856C08K2003/0862C08K2201/01C08L67/06
Inventor 侯观林丁玉青
Owner 安徽省旌德县江南机电配件有限公司
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