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Synchronous shaping method for making public utility equipment using composite material

A technology of utilities and molding methods, applied in the field of simultaneous molding

Inactive Publication Date: 2003-09-17
刘枫林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the above problems, and propose a synchronous molding method for manufacturing public facilities products with composite materials, which has low cost, good performance, no pollution, and can eliminate shrinkage cracks inside the product.

Method used

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  • Synchronous shaping method for making public utility equipment using composite material
  • Synchronous shaping method for making public utility equipment using composite material
  • Synchronous shaping method for making public utility equipment using composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0032] Embodiment (taking making inspection shaft cover as example):

[0033] Such as Figure 1-5 , first along the molding cavity 1 of the manhole cover molding mold image 3 In the direction indicated by the arrow, apply the mold release agent evenly inside the molding cavity 1, and then inject the surface molding agent obtained by mixing the resin, an appropriate amount of accelerator and curing agent evenly into the bottom of the mold molding cavity 1 according to the thickness requirements of the bottom of the manhole cover, and then insert the thin Wall hollow cylinder 7, the surface forming agent is slowly injected into the cavity between the inner wall of the molding cavity 1 and the outer wall of the thin-wall hollow cylinder 7 along the outer wall of the thin-walled hollow cylinder 7, and at the same time, the surface forming agent and aggregate are stirred to synthesize The mixed slurry obtained is injected in the middle of the thin-walled hollow cylinder 7 (the tw...

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PUM

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Abstract

A synchronous forming method for making the products of public facilities, such as manhole cover, fire hydrant, protective railing of road, etc includes such steps as mixing resin, adding promoter and solidifying agent to obtain surface forming agent, mixing with aggregate to obtain slurry, coating demoulding agent on the surfaces of mould, injecting surface forming agent onto bottom surface of mould, putting thin-wall hollow barrels to layers of forming cavity, injecting said slurry in the barrels while pouring said surface forming agent in the space between mould and barrels, slowly liftingup said barrels, pouring the surface forming agent on the top, solidifying and ageing.

Description

technical field [0001] The invention relates to a synchronous molding method for manufacturing public facilities products such as manhole covers, fire hydrants, road guardrails and the like with composite materials. Background technique [0002] At present, fire hydrants, inspection well covers, street guardrails, etc. in public facilities products are traditionally cast with pig iron, and there has been no improvement for many years. Due to the poor tensile and impact resistance of pig iron, it is easy to be damaged by force. Cast iron requires a large site, complex equipment, many process steps, and a considerable degree of industrial pollution, so it must be far away from the city. Coupled with the large proportion of pig iron and inconvenient transportation, it is even more difficult to reduce the already high cost. Recently, some places have tried to replace it with concrete products, but it has not been widely used because of its poor performance and bulky and ugly a...

Claims

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Application Information

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IPC IPC(8): B29C39/02
Inventor 刘云凯周开石
Owner 刘枫林