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Bidirectional glass fiber drawing groove wedge and production method thereof

A technology of glass fiber and alkali-free glass fiber, which is applied in the direction of electrical components, electromechanical devices, windings, etc., can solve the problems of thermal performance degradation, low splitting strength, and high volatile matter content, and achieve improved stability and high mechanical strength. , the effect of high dimensional accuracy

Active Publication Date: 2009-10-07
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

However, it only has unidirectional strength, the splitting strength is as low as 600N / 10mm, and the bending strength is 200-300Mpa. Moreover, due to the use of epoxy and polyamide resins as adhesives and toluene as diluents, the volatile content is high and heat performance degradation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] The content of the alkali-free glass fiber filler in the finished product of the two-way glass fiber drawing slot wedge of the present invention is 52%, and the cured resin content is 48%. The alkali-free glass fiber filler includes 64% of alkali-free glass fiber, 35% of glass fiber casing and 1% of chopped glass fiber. The cured resin includes 55% of novolac epoxy vinyl resin, 0.5% of silane coupling agent, 1.5% of peroxide initiator, 2.0% of special initiator for pultrusion, and 3% of phosphoric acid ester mold release agent , talcum powder 20%, barium sulfate 15.5% and pigment paste 2.5%.

[0013] The production process of the two-way fiberglass slot wedge is two-way fiberglass slot wedge adhesive preparation and two-way fiberglass slot wedge molding two parts:

[0014] Adhesives for two-way fiberglass pull-out wedges are prepared as follows:

[0015] Put 100 parts of phenolic epoxy vinyl resin (including diluent) into the stirring tank and start stirring, and then...

Embodiment 2

[0020] The content of the alkali-free glass fiber filler in the finished product of the two-way glass fiber drawing slot wedge of the present invention is 56%, and the cured resin content is 44%. The alkali-free glass fiber filler includes 65% of alkali-free glass fiber, 33% of glass fiber casing and 2% of chopped glass fiber. The cured resin includes 60% of phenolic epoxy vinyl resin, 1.0% of silane coupling agent, 2.0% of peroxide initiator, 1.5% of special initiator for pultrusion, and 1% of phosphoric acid ester mold release agent , talcum powder 15%, barium sulfate 18% and pigment paste 1.5%.

[0021] The production process of the two-way fiberglass slot wedge is two-way fiberglass slot wedge adhesive preparation and two-way fiberglass slot wedge molding two parts:

[0022] Adhesives for two-way fiberglass pull-out wedges are prepared as follows:

[0023] Put 100 parts of phenolic epoxy vinyl resin (including diluent) into the stirring tank and start stirring, and then ...

Embodiment 3

[0028] The content of the alkali-free glass fiber filler in the finished product of the two-way glass fiber drawing slot wedge of the present invention is 60%, and the content of the cured resin is 40%. The alkali-free glass fiber filler includes 66% of alkali-free glass fiber, 31% of glass fiber casing and 3% of chopped glass fiber. The cured resin includes 65% of phenolic epoxy vinyl resin, 0.5% of silane coupling agent, 1.5% of peroxide initiator, 1.5% of special initiator for pultrusion, and 1% of phosphoric acid ester mold release agent , talcum powder 10%, barium sulfate 19% and pigment paste 1.5%.

[0029] The production process of the two-way fiberglass slot wedge is two-way fiberglass slot wedge adhesive preparation and two-way fiberglass slot wedge molding two parts:

[0030] Adhesives for two-way fiberglass pull-out wedges are prepared as follows:

[0031] Put 100 parts of phenolic epoxy vinyl resin (including diluent) into the stirring tank and start stirring, an...

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Abstract

The invention discloses a bidirectional glass fiber drawing groove wedge and the production method thereof. The bidirectional glass fiber drawing groove wedge is characterized in that: the finished product contains 52-64% of alkali free glass fiber packing, and 36-48% of cured resin. The production method comprise: preparing glue; impregnating alkali free glass fiber; cutting the shaped groove wedge and grinding head; washing and drying in air; performing surface treatment and drying in air; inspecting finished products; sorting and packaging. The invention is characterized in that: a glass fiber woven sleeve is disposed out of the alkali free glass fiber after the first impregnation before the second impregnation; and the alkali free glass fiber and the glass fiber woven sleeve after the second impregnation are moulded by pultruding. The bidirectional glass fiber drawing groove wedge has both longitudinal strength and latitudinal strength, and better thermal state performance; the production method includes two impregnations; and the glass fiber packing is combined by a plurality of structures; thereby, the solidification is more completely, and the solidified groove wedge has better integrity.

Description

technical field [0001] The invention relates to a slot wedge for motors and a production method thereof, in particular to a two-way glass fiber pulling slot wedge produced by glass fiber rovings, chopped glass fibers, and glass fiber sleeves impregnated with adhesives and using a pulling process and its production method. Background technique [0002] Ordinary glass fiber slot wedges are made of glass fiber rovings impregnated with adhesives and have only unidirectional strength. For example, the Chinese patent No. 99112760.9 and the name "Magnetic slot wedge preparation process" discloses a method using A method for preparing magnetic slot wedges from alkali glass spun yarns. In addition, ordinary slot wedges use epoxy as an adhesive. The slot wedges produced by such a process formula have good strength under normal conditions, but the strength is poor after being heated. The existing fiberglass slot wedge is unidirectional, although it has a smooth appearance, stable geo...

Claims

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Application Information

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