Extruding and drawing forming process for glass fiber reinforced plastic bar surface

A pultrusion and glass fiber reinforced plastic technology, applied in parallel bars, sports accessories, gymnastics equipment, etc., can solve the problems of poor mechanical properties, short storage and service cycles, low production efficiency, etc., and achieve good mechanical properties, long service life, and operation. easy effect

Inactive Publication Date: 2004-07-14
天津市春合体育用品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the known parallel bars and uneven bars are all made of wood or glass cloth by winding and forming. The wooden bars are easily deformed and cracked due to the limitation of the wood itself, and the storage and service life is short; the twisted glass fiber reinforced plastic bars have poor mechanical properties. , the rebound is slow, and the production efficiency of the FRP bar surface is low and the labor intensity is high by using the winding process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1 is the extrusion molding process of the glass steel bar face of the uneven bar, and its proportioning ratio is as follows:

[0039] (1), glass fiber:

[0040] Glass fiber yarn: EC13--134×8 Thread number: 2400TX 340-400 groups (40 bundles)

[0041] Fiberglass tape: Wire size: 24TX, 2 strands, 40 yarns

[0042] Specifications: 95mm×0.12mm (warp: 27 weft: 20)

[0043] (2), resin: 50 parts (kg) of 7541 unsaturated polyester resin

[0044] 50 parts (kg) of 191 unsaturated polyester resin

[0045] (3), filler: 20--40% (kg) of aluminum hydroxide resin weight

[0046] (4) Internal release agent: light zinc stearate, 2--5% of resin weight (kg)

[0047] GX---1 1.5-2.5% of resin weight (ml)

[0048] (5) Initiator: 0.5-1.5% (ml) of 90°C tert-butyl peroxybenzoate liquid by resin weight

[0049] (6) Curing agent: 0.5-1.5% (ml) of benzoyl peroxide paste resin weight

[0050] Install the dipping tank and the bar surface mold in ...

Embodiment 2

[0051] Embodiment 2 is the extrusion molding process of the double-bar glass fiber reinforced plastic bar face, and its proportioning is as follows:

[0052] (1), glass fiber:

[0053] Glass fiber yarn: EC13--134×18 Thread number: 2400TX 300-360 groups (40 bundles)

[0054] Fiberglass tape: for advanced use

[0055] Thread number: 24TX, 2 strands, 40 yarns

[0056] Specifications: 95mm×0.12mm (warp: 27 weft: 10)

[0057] Canvas: general use

[0058] (2), resin: 90 parts (kg) of 7541 unsaturated polyester resin

[0059] 10 parts (kg) of 191 or 199T unsaturated polyester resin

[0060] (3), filler: 25%-30% (kg) of aluminum hydroxide resin weight

[0061] (4), internal release agent: 2% (kg) of light zinc stearate resin weight

[0062] GX---1.5% of resin weight (ml)

[0063] (5) Initiator: 0.5-1.5% (ml) of 90°C tert-butyl peroxybenzoate liquid by resin weight

[0064] (6) Curing agent: 0.5-1.5% (ml) of benzoyl peroxide paste resin we...

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PUM

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Abstract

The present invention relates to extruding and drawing formation process for GRP bar surface, and features that the extruding and drawing former is provided with glue dipping tank with compounded adhesive filled and bar surface mold. Certain amount of no-alkali and no-twist roving is soaked into the adhesive inside the glue dipping tank, then threaded into mold preheated to certain temperature and finally extruded in extruding and drawing former to form. The formed product is stoved in electric stove and cooled naturally. High strength adhesive is compounded to ensure enough tensile strength and round strength of the bar surface, and the bar surface has no residual deformation under tensile force up to 700 kg. The bar surfaces of parallel bars and uneven bars may be used in the temperature range of -70 deg.c to +50 deg.c and maintain excellent mechanical performance.

Description

technical field [0001] The invention relates to a manufacturing method of sports equipment, in particular to an extrusion molding process for parallel bars and uneven bars used for sports competitions and training. Background technique [0002] At present, the known parallel bars and uneven bars are all made of wood or glass cloth by winding and forming. The wooden bars are easily deformed and cracked due to the limitation of the wood itself, and the storage and service life is short; the twisted glass fiber reinforced plastic bars have poor mechanical properties. , the rebound is slow, and its production efficiency is low and the labor intensity is high by using the winding process to make the FRP bar surface. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a pultrusion process using advanced glass fiber reinforced plastic bars, so as to achieve the perfect combination of glass fibers and binders for one-time pu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A63B3/00B29C70/20
Inventor 郭永刚陈宝生
Owner 天津市春合体育用品有限公司
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