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Compound resin hole cover and its manufacture method

A technology of composite resin and mixed resin, which is applied in the direction of manufacturing tools, artificial islands, underwater structures, etc., can solve the problems of poor toughness and rigidity, easy to be stolen, low strength, etc., and achieve good sealing performance, long service life, Good corrosion resistance effect

Inactive Publication Date: 2008-09-17
黄亮
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this resin-based composite manhole cover overcomes some inherent defects that have plagued people for a long time in cast iron manhole covers, it still has defects such as poor toughness, rigidity, and low strength. easy to be stolen

Method used

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  • Compound resin hole cover and its manufacture method
  • Compound resin hole cover and its manufacture method

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Example 1: A composite resin hole cover, containing an upper support 4 and a convex spherical boss 3 located in the middle and lower part of the upper support 4, the upper support 4 has a cover surface decoration layer 2, and the upper support 4 The outer periphery of is placed on the supporting surface 5 of the seat body 1. The materials used include unsaturated polyester resin, low-alkali glass fiber cloth, calcium carbonate, quartz sand, talc, methyl ethyl ketone peroxide curing agent and cobalt isozinic acid cobalt styrene solution accelerator, and also contain high-strength glass fiber tow Reinforced ribs made of mesh, including: resin 8 kg, glass fiber cloth and high-strength glass fiber tow made of reinforced rib 3.1 kg, calcium carbonate 3 kg, quartz sand 20.5 kg, talc powder 4.9 kg, methyl ethyl ketone peroxide The curing agent is 0.14 kg and the cobalt isozinate styrene solution accelerator is 0.07 kg.

[0029] The manufacturing method of the composite resin hole ...

Embodiment 2

[0039] Embodiment two: a composite resin hole cover, containing an upper support body 4 and a convex cylindrical body 6 located in the middle and lower part of the upper support body 4, the upper support body 4 has a cover surface decoration layer 2, and the upper support body 4 The outer periphery is placed on the supporting surface 5 of the seat body 1. The materials used include unsaturated polyester resin, alkali-free glass fiber cloth, calcium carbonate, quartz sand, talc, methyl ethyl ketone peroxide curing agent and cobalt isozinate styrene solution accelerator, and also contain high-strength glass fiber tow Reinforced ribs made of a grid, including: 9 kg of resin, 6 kg of reinforcing ribs made of glass fiber cloth and high-strength glass fiber tow, 6.6 kg of calcium carbonate, 26.4 kg of quartz sand, 11.4 kg of talc, and methyl ethyl ketone peroxide Curing agent 0.24 kg and cobalt isozinate styrene solution accelerator 0.06 kg.

[0040] The manufacturing method of the comp...

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Abstract

A compound resin manhole cover comprises an upper support body and an outer-convex-shaped and arc-shaped curved solid positioned in the middle-lower part of the upper support body. The manhole cover contains: resin 12-26%, glass cloth and strengthening rib made of high strength glass fiber tow 4-15%, calcium carbonate 3-12%, quartz sand 40-60%, talcum powder 6-20%, solidifying agent 0.1-0.5% and accelerant 0.05-0.4%. The processing method includes: cleaning up upper and lower moulds, waxing with the stripping wax; respectively filling with the resin, the quartz sand, the calcium carbonate, the talcum powder, the solidifying agent and the accelerant; putting on a grid-patterned strengthening rib made of the high strength glass fiber tow; assembling, pressuring, solidifying; demoulding and edging. The manhole cover has the advantages of high loading capacity, high strength, high toughness, long service life, excellent sealing performance, insulation, abrasion resistance, good corrosion resistance and rust resistance. Since the manhole cover contains no steel bar, the cover has no recycling value, thereby fully solving the stealing problem.

Description

Technical field: [0001] In order to check the working conditions of underground facilities or drain the water on the ground, the road and town construction department has set up a number of round and square holes on the ground. The present invention relates to composite resin hole covers (such as manholes) placed on these holes. Cover and rain grate) and its production method. Background technique: [0002] The Chinese patent "Resin-based composite manhole cover" with the patent number 02149379.0 includes: a supporting edge matched with a support, a flat plate that closes the wellhead, and a stiffener set under the flat plate. The composite material used is made of unsaturated polyester resin, without Alkali glass fiber, methyl ethyl ketone peroxide curing agent, cobalt isozinate styrene solution accelerator, and the weight percentages are: 50-57% of the resin, 35-45% of the glass fiber, and the curing agent 1-2%, 2-3% of the accelerator. The composite material can be added: anti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/14B28B3/26B28B1/52C04B26/10C04B14/28C04B14/42C04B14/06
Inventor 黄亮
Owner 黄亮
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