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Preparation method of glass fiber reinforced plastic sand pipe

A technology of FRP with sand and glass surface, which is applied in the field of FRP pipes, can solve the problems of large resin consumption and high production cost, and achieve the effect of preventing cracking shrinkage and enhancing mechanical properties

Active Publication Date: 2021-02-05
广西北海跃达玻璃钢制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the disadvantages that the production of existing FRP pipes consumes a large amount of raw materials such as resin and limited resources such as quartz sand, and the production cost is relatively high, the present invention provides a method for preparing FRP pipes with sand inclusions, which can give full play to the role of materials and improve the performance of pipelines. rigidity and life

Method used

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  • Preparation method of glass fiber reinforced plastic sand pipe
  • Preparation method of glass fiber reinforced plastic sand pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045]A preparation method of FRP sand pipe includes the following technical steps:

[0046]1) Lining:

[0047]Prepare materials according to the design material types and specifications, stack the materials neatly, safely and cleanly, prevent the materials from being damp, and store the accelerator and curing agent at a distance of not less than 5 meters;

[0048]Remove debris on the mold surface, make the outer surface of the mold flat and smooth, check whether the mold structure is intact, whether the shaft head welding seam is open, apply the release wax evenly on the outer surface of the mold, and repeatedly squeeze to make the wax layer on the mold surface even , The thickness meets the design requirements, the mold needs to be waxed once for the first use or continuous use, and the waxing frequency should be increased when the demolding is difficult;

[0049]According to the requirements of pipe diameter, prepare 50mm film;

[0050]Put the film, install the 200mm width film on the carriage ...

Embodiment 2

[0073]A preparation method of FRP sand pipe, compared with Example 1:

[0074]In the lining of step 1), prepare a 200mm film according to the pipe diameter requirements;

[0075]The accelerator is cobalt water, the curing agent is methyl ethyl ketone peroxide, the resin is selected from unsaturated polyamide resins, and the inner liner resin is selected from bisphenol A type unsaturated polyamide resins, accelerators, curing agents and resins. The mass ratio is 0.3:3:100;

[0076]The other steps are the same as in Example 1.

Embodiment 3

[0078]A preparation method of FRP sand pipe, compared with Example 1:

[0079]In the lining of step 1), prepare a 100mm film according to the pipe diameter requirements;

[0080]The accelerator is cobalt water, the curing agent is methyl ethyl ketone peroxide, the resin is selected from unsaturated polyamide resins, and the resin of the inner lining layer is selected from polyamide resin or vinyl acyl resin. The quality of the accelerator, curing agent and resin The ratio is 0.3:2.5:100;

[0081]The other steps are the same as in Example 1.

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Abstract

The invention discloses a preparation method of a glass fiber reinforced plastic sand pipe. The preparation method of the glass fiber reinforced plastic sand pipe comprises the following technical steps: 1) lining preparation; 2) winding; 3) curing: immediately hoisting a mold with the pipe to a curing station after the winding is completed, and starting a main shaft to enable the mold to be in aconstant-speed rotating state for curing; 4) finishing: detecting the curing degree of the pipeline, and when the Babbitt hardness of the outer surface of the pipeline is not lower than 20, carrying out surface treatment, finishing a bell mouth and a spigot; and 5) demolding: when the Babbitt hardness of the outer surface of the pipeline is not lower than 25, demolding, thoroughly cutting off burrs of the bell and spigot of the pipeline, polishing the burrs at the end parts of the bell mouth and the spigot, and uniformly brushing resin until the burrs are cured. The preparation method gives full play to the effects of materials, improves the rigidity of the pipeline and prolongs the service life of the pipeline.

Description

【Technical Field】[0001]The invention relates to the technical field of FRP pipes, in particular to a preparation method of FRP sand-incorporated pipes.【Background technique】[0002]As an important building material in the construction industry, especially in the civil engineering construction industry, FRP pipes (GRP pipes) are widely used in various fields, mainly urban water supply and drainage engineering, urban cable engineering, etc. Its development and growth promote the construction industry The role is of great significance. In the past ten years, the total output value of the construction industry and civil engineering construction industry has shown a good upward trend. This is due to the continuous evolution of building materials in the development process of the construction industry. As far as water pipes are concerned, they have experienced ordinary The development history of cast iron pipe → cement pipe → reinforced concrete pipe, asbestos cement pipe → ductile iron pip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/32B29C70/54C08L67/06C08K13/02C08K3/36C08K5/00
CPCB29C70/32B29C70/54C08K13/02C08K3/36C08K5/0091C08K2201/011C08K2201/014C08L67/06
Inventor 孟飞孟冲孟宪月刘永乐
Owner 广西北海跃达玻璃钢制品有限公司
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