Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Production method of glass reinforced plastic pipe

A production method and technology of glass fiber reinforced plastic, applied in the field of glass fiber reinforced plastic pipes, can solve the problems of large resin consumption and limited mechanical properties at the same time, and achieve the effects of reducing drying stress, reducing migration, and reducing voids

Active Publication Date: 2021-03-30
广西北海跃达玻璃钢制品有限公司
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the shortcomings of the existing glass steel pipes that consume a large amount of resin and have limited mechanical properties, the invention provides a production method for glass steel pipes. The inner surface of the produced glass steel pipes is smooth and free of cracks, delaminations, and pinholes. , impurity, poor glue area, air bubbles and fiber infiltration, etc., the end surface of the pipe is even, no burrs on the edges, and no obvious defects on the outer surface

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The production method of glass steel pipe comprises the following technical steps:

[0044] 1) Lining:

[0045] Prepare materials according to the type and specification of the design materials. The materials are stacked neatly, safely and cleanly, and the materials are strictly protected from moisture. The accelerator and curing agent are stored at a distance of not less than 5 meters;

[0046] Remove the sundries on the surface of the mold, make the outer surface of the mold smooth, check whether the structure of the mold is intact, whether the welding seam of the shaft head is open, apply the release wax evenly on the outer surface of the mold, and squeeze repeatedly to make the wax layer on the surface of the mold even , the thickness meets the design requirements, the mold needs to be waxed once when it is used for the first time or used continuously for many times, and the frequency of waxing should be increased when it is difficult to demould;

[0047] Prepare a...

Embodiment 2

[0068] The production method of glass steel pipe, compared with embodiment 1:

[0069] In the lining system of step 1), prepare a 200mm specification film according to the pipe diameter requirements;

[0070] The accelerator is cobalt water, the curing agent is methyl ethyl ketone peroxide, and the resin is selected from unsaturated polyacyl resins, wherein the lining layer resin is selected from bisphenol A type unsaturated polyacyl resins; accelerator, curing agent, reinforcing agent The mass ratio to the resin is 0.3:3:2:100;

[0071] Other steps are the same as in Example 1.

Embodiment 3

[0073] The production method of glass steel pipe, compared with embodiment 1:

[0074] In the lining system of step 1), prepare a 100mm specification film according to the pipe diameter requirements;

[0075] The accelerator is cobalt water, the curing agent is methyl ethyl ketone peroxide, and the resin is selected from unsaturated polyacyl resin, wherein the resin of the lining layer is selected from polyacyl resin or vinyl acyl resin; accelerator, curing agent, reinforcing agent and The mass ratio of resin is 0.3:2:2:100;

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a production method of a glass reinforced plastic pipe. The production method comprises the following technical steps: 1) lining preparing; 2) winding; (3) curing: immediatelyhoisting a mold with the pipe to a curing station after winding is completed, and starting a main shaft to enable the mold to be in a constant-speed rotating state for curing; 4) finishing: detectingthe curing degree of the pipe, finishing a socket and a spigot when the Babbitt hardness of the outer surface of the pipe is not lower than 20, and carrying out surface treatment; and 5) demolding: when the Babbitt hardness of the outer surface of the pipe is not lower than 25, carrying out demolding, thoroughly cutting off burrs of the socket and the spigot of the pipe, polishing away the burrs at the end part of the socket and the spigot, and uniformly brushing resin for curing. According to the glass reinforced plastic pipe obtained through the production method, the inner surface of the pipe is smooth and free of cracking, layering, pinholes, impurities, less glue areas, bubbles, fiber infiltration and other phenomena, the end face of the pipe is flush, edges are free of burrs, and theouter surface is free of obvious defects.

Description

【Technical field】 [0001] The invention relates to the technical field of FRP pipes, in particular to a production method of FRP pipes. 【Background technique】 [0002] The state supports the development of new building materials to reduce energy consumption and save energy. The use of fiberglass building materials is an effective way to meet the national energy saving policy and achieve energy saving and consumption reduction. As an important building material in the construction industry, especially the civil engineering construction industry, glass steel pipes (glass steel pipes) are widely used in various fields, mainly for urban water supply and drainage projects, urban cable projects, etc., and its development and growth will promote the construction industry. function 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, which is due to the continuo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B29C70/30B29C70/38B29C70/54C08L67/06C08K5/14C08K3/34C08K13/02
CPCB29C70/30B29C70/382B29C70/545C08K5/14C08K3/34C08K13/02C08K2201/011C08L2203/18C08L67/06
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com