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Extraction slot wedge for high intensity glass fiber cloth

The technology of glass fiber cloth and alkali-free glass fiber is applied in the field of high-strength wedge drawing and pulling, which can solve the problem of insufficient mechanical strength, and achieve the effects of excellent solvent resistance, increased transverse mechanical strength, and excellent mechanical properties.

Inactive Publication Date: 2010-09-08
浙江博菲电气股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a high-strength glass fiber cloth extraction slot wedge to overcome the problem of insufficient mechanical strength when the existing magnetic slot wedge is used for motor rotors

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0021] Example high-strength fiberglass cloth lead slot wedge

[0022] The non-alkali glass cloth and the non-alkali glass fiber with a weight ratio of 32% are stacked and then dipped in glue, so that the adhesive accounts for 68% of the total weight. Then extruding at a linear speed of 100r / min, at temperatures of 145°C-150°C, 165°C-180°C and 135°C-145°C, each temperature range is 1.0 minute, and finally the drawing wedge is made.

[0023] After testing, the splitting strength of the drawn slot wedge is 4200N / 10mm.

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PUM

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Abstract

The invention provides an extraction slot wedge for high intensity glass fiber cloth, comprising the following compositions in percentage by weight: 32-34 percent of alkali-free glass cloth and alkali-free glass fibers and 66-68 percent of adhesive. Because the alkali-free glass cloth is introduced, the adhesive is improved and the transverse mechanical strength of the slot wedge is increased, the slot wedge has excellent mechanical property and solvent and chemical medicine resistance under high temperature and particularly keeps stronger split resistance under high temperature, wherein the split resistance can achieve above 3000N / 10mm. The invention can completely satisfy the running requirement of a motor.

Description

technical field [0001] The invention relates to a component used in a motor, in particular to a high-strength pull-out slot wedge, which is made of glass fiber cloth and glass fiber yarn dipped in glue and then pulled out, which can increase the mechanical strength and anti-split strength of the pull-out slot wedge Greatly improve. Background technique [0002] When AC and DC motors are in normal operation, the slot wedges that fix the coils, especially the rotor slot wedges, need to bear huge centrifugal force under the action of electromagnetic force. In addition, since the slot wedge and the slot type are required to be closely matched, the geometric dimensions are correct, and at the same time, it has higher mechanical strength, especially anti-split strength. [0003] Invention patent CN101295894 discloses a magnetic slot wedge and its production method. The magnetic slot wedge includes 18%-20% of 943 unsaturated polyester resin, 0.5%-1% of internal mold release agent,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K3/487H02K15/00
Inventor 陆云峰张沈军
Owner 浙江博菲电气股份有限公司