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High-strength, high-elasticity light manhole appliance and its producing method

A high-elasticity and high-strength technology, used in waterway systems, drainage structures, water supply devices, etc., can solve the problems of poor elasticity, low compressive performance, and high brittleness, and achieve the effects of light weight, good toughness, and good rigidity.

Inactive Publication Date: 2003-03-19
张贵仁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the well tools made of cast iron have good rigidity, high strength, good compression resistance and long service life, they have obvious disadvantages, such as high material brittleness, low compression resistance, poor elasticity, weak impact resistance, easy to break and break , and high cost, easy to lose
Well tools made of cement materials have greatly improved the shortcomings of well tools made of cast iron materials, but they still have disadvantages such as high brittleness, poor toughness, no elasticity, easy cracking, and falling off.
The well tool made of FRP has low pressure resistance and no elasticity. When it is under pressure, it will sink and cannot rebound, and its strength is not enough. According to the above shortcomings, the service life of the well tool is greatly shortened and needs to be replaced frequently

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Select 50% glass fiber cloth, 40% unsaturated resin 191A, 4% benzoyl peroxide, 3% xylylamine, 1% color paste, temperature 15 ℃-20 ℃, use the above formula to make Kuncheng The mechanical test results of the products are as follows:

[0024] Bending test: bending section modulus 1125mm, ultimate load 220Kg,

[0025] Bending strength 14.7Kg / mm

[0026] Tensile test: cross-sectional area 40mm, ultimate load 430Kg,

[0027] Tensile strength 10.8Kg / mm

[0028] Compression test: cross-sectional area 100mm, ultimate load 1150Kg,

[0029] Tensile strength 11.5Kg / mm

[0030] Impact test: cross-sectional area 70mm, absorbed work 25.8J,

[0031] Impact 368.6KJ / m

Embodiment 2

[0033] Select 55% glass fiber cloth, 38% unsaturated resin 191A, 4.5% benzoyl peroxide, 3.5% xylylamine, 2% color paste, temperature 18 ℃-25 ℃, using the above formula to make The mechanical test results of the product are as follows:

[0034] Bending test: bending section modulus 1125mm, ultimate load 220Kg,

[0035] Bending strength 15.5Kg / mm

[0036] Tensile test: cross-sectional area 40mm, ultimate load 430Kg,

[0037] Tensile strength 11.5Kg / mm

[0038] Compression test: cross-sectional area 100mm, ultimate load 1150Kg,

[0039] Tensile strength 12.6Kg / mm

[0040] Impact test: cross-sectional area 70mm, absorbed work 25.8J,

[0041] Impact 375.6KJ / m

Embodiment 3

[0043] Select 58% glass fiber cloth, 35% unsaturated resin 191A, 5% benzoyl peroxide, 4% xylylamine, 2% color paste, temperature 18 ℃-30 ℃, using the above formula to make The mechanical test results of the product are as follows:

[0044] Bending test: bending section modulus 1125mm, ultimate load 220Kg,

[0045] Bending strength 16.2Kg / mm

[0046] Tensile test: cross-sectional area 40mm, ultimate load 430Kg,

[0047] Tensile strength 11.9Kg / mm

[0048] Compression test: cross-sectional area 100mm, ultimate load 1150Kg,

[0049] Tensile strength 13.7Kg / mm

[0050] Impact test: cross-sectional area 70mm, absorbed work 25.8J,

[0051] Impact 378.8KJ / m

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PUM

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Abstract

A high-elasticity, high-strength and light-weight manhole appliance is made up of glass fibre cloth, unsaturated resin 191 A, benzoyl peroxide, dibenzylamine and pigment. Its advantages are better rigidity, elasticity and anticorrosion nature, no deformation and cracking at -60-+60 deg.C, light weight, low cost and better weatherability and antiageing performance.

Description

technical field [0001] The present invention relates to a well tool used for drainage. Background technique [0002] At present, the well tools used by the department of drainage (including various upper and lower water well covers and well grates) are generally divided into three types: one is made of cast iron, one is made of cement, and the other is made of cement. It is made of fiberglass. Although the well tools made of cast iron have good rigidity, high strength, good compressive performance and long service life, they have obvious shortcomings, such as high brittleness, low compressive performance, poor elasticity, weak impact resistance, easy to break, and easy to break. , and the cost is high and easy to lose. Well tools made of cement materials greatly improve the shortcomings of well tools made of cast iron materials, but they still have shortcomings such as high brittleness, poor toughness, no elasticity, easy cracking, and falling off. Well tools made of FRP ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E03F5/00
Inventor 张贵仁
Owner 张贵仁