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Carbon fibre composite damping well cover and manufacturing process thereof

A composite material and carbon fiber technology, applied in artificial islands, water conservancy projects, infrastructure engineering and other directions, can solve problems such as engineering, environment, energy problems, difficulty in opening, and sinking of manhole covers, and achieve high creep resistance, safety and stability. Good environmental aging resistance and unique effect of structural design

Active Publication Date: 2012-10-10
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For a long time, the inspection manhole covers used in municipal public facilities in our country are generally produced by cast iron. The limitations of its materials, processing energy consumption, and environmental pollution have caused serious problems for engineering, environment, energy troubles
In particular, the problem of the loss of manhole covers has not been well resolved, which often leads to transportation and personal safety accidents, affects urban economic construction, and has a negative impact on the social environment
Cast iron manhole covers are easy to be stolen and noisy, which affects the lives of residents; cement manhole covers are bulky and difficult to open, which brings inconvenience to construction and maintenance and has insufficient carrying capacity; recycled resin composite inspection manhole covers are used during use, especially when the temperature is high In the case of continuous rolling by vehicles, the manhole cover will creep, causing the middle part of the manhole cover to sink continuously, and even fall off, which will cause a great safety hazard
The use of manhole covers today has certain application limitations

Method used

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  • Carbon fibre composite damping well cover and manufacturing process thereof
  • Carbon fibre composite damping well cover and manufacturing process thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Processing carbon fiber composite shock-absorbing manhole covers, the major diameter is 625mm, the minor diameter is 575mm, the thickness is 30mm, and the step thickness is 17mm.

[0026] Multi-layer 6K carbon fiber cloth 3 is spread on the upper and lower surfaces of the manhole cover, and two layers of carbon fiber reinforcement layers 2 are arranged in 90?? in the middle, evenly embedded in epoxy resin mixed filler, compacted and applied a certain load to cure at room temperature. , After fully cured, paste a layer of rubber ring with a width of 20mm and a thickness of 4mm on the outer side of the bottom of the well cover and the contact part of the well seat. The material is aging-resistant silicone rubber.

[0027] The carbon fiber reinforcement is made of Mitsubishi T700 carbon fiber from Japan, and the high temperature resistant thermosetting epoxy resin is used as a matrix to prepare a rod-shaped material by continuous pultrusion molding. Its specific gravity is ...

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Abstract

The invention relates to a carbon-fibre composite damping well cover and a manufacturing process thereof. A cover body provided by the invention comprises at least one layer on the upper and lower carbon cloths, multiple carbon-fibre composite rod strengthening rib layers are packaged in the carbon cloths, an epoxy mixing padding is filled in the strengthening ribs, and the edge of the cover body and a contacting part of a well base are provided with rubber washers. The carbon-fibre composite damping well cover provided by the invention except overcomes the shortages of the common well cover, and has the advantages of high intensity, good environment aging resistance, abrasion proof, creep resistance, good safety stability, long service life and the like; and the carbon-fibre composite damping well cover can effectively solve a well cover anti-theft problem. The carbon-fibre composite damping well cover provided by the invention meet daily life use, also can be widely used to road section which has large traffic stream quantity and high carrying capacity load such as airports and quay ports, and is suitable for regions which has severe environment such as moistness weather.

Description

technical field [0001] The invention belongs to the field of municipal pipeline construction engineering, and particularly relates to a carbon fiber composite shock-absorbing manhole cover and its manufacturing process. Areas with relatively harsh environments such as mouths and humid climates. Background technique [0002] For a long time, the inspection manhole covers used in municipal public facilities in my country are generally made of cast iron. The limitations of its materials, processing energy consumption, and environmental pollution have brought troubles to engineering, the environment, and energy. In particular, the problem of the loss of manhole covers has not been well resolved, which often leads to traffic and personal safety accidents, affects urban economic construction, and has a negative impact on the social environment. [0003] The currently used manhole covers are as follows: cast iron manhole covers, cement manhole covers, composite material manhole co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/14B29C70/30
Inventor 朱波蔡珣王永伟乔琨
Owner SHANDONG UNIV
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