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A kind of preparation method of FRP 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 high production cost and large resin consumption, and achieve the effect of enhancing mechanical properties and preventing cracking and shrinkage

Active Publication Date: 2022-06-28
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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  • A kind of preparation method of FRP sand pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A preparation method of a glass fiber reinforced plastic sand-filled pipe, comprising the following technical steps:

[0046] 1) Lining:

[0047] Prepare materials according to the type and specifications of the designed materials. The materials should be stacked neatly, safely and cleanly, and the materials should be strictly prevented from getting wet. The storage distance of accelerators and curing agents should not be less than 5 meters;

[0048] Remove the sundries on the surface of the mold, make the outer surface of the mold smooth and smooth, check whether the mold structure is in good condition, and whether the welding seam of the shaft head is open. , the thickness is in line with the design requirements, the mold needs to be waxed once for the first time or for several consecutive uses, and the waxing frequency is increased when demolding is difficult;

[0049] Prepare 50mm specification film according to pipe diameter requirements;

[0050] Apply the film,...

Embodiment 2

[0073] A preparation method of glass fiber reinforced plastic sand-filled pipe, compared with Example 1:

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

[0075] Described accelerator is cobalt water, curing agent is methyl ethyl ketone peroxide, resin is selected from unsaturated polyester resin, wherein inner lining resin is selected from bisphenol A type unsaturated polyester resin, accelerator, curing agent and resin The mass ratio is 0.3:3:100;

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

Embodiment 3

[0078] A preparation method of glass fiber reinforced plastic sand-filled pipe, compared with Example 1:

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

[0080] Described accelerator is cobalt water, curing agent is methyl ethyl ketone peroxide, resin is selected from unsaturated polyester resin, wherein inner lining resin is selected from polyester resin or vinyl ester resin, the quality of accelerator, curing agent and resin The ratio is 0.3:2.5:100;

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

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Abstract

The invention discloses a method for preparing a glass fiber reinforced plastic pipe with sand, which comprises the following technical steps: 1) lining; 2) winding; 3) curing: after the winding is completed, the mold with the pipe is immediately hoisted to the curing station and started The main shaft makes the mold rotate at a constant speed for curing; 4) Trimming: Check the curing degree of the pipe, and when the Barcol hardness of the outer surface of the pipe is not less than 20, trim the socket, trim the socket, and surface treatment; 5) Demoulding: When the outer surface of the pipe When the surface Barcol hardness is not lower than 25, demoulding is carried out, the burr of the pipe socket is completely cut off, and the burr at the end of the socket is polished, and the resin is evenly applied until it is cured. The preparation method of the invention fully exerts the effect of the material and improves the rigidity and service life of the pipeline.

Description

technical field [0001] The invention relates to the technical field of glass fiber reinforced plastic pipes, in particular to a preparation method of a glass fiber reinforced plastic sand-filled pipe. Background technique [0002] As an important building material in the construction industry, especially in the civil engineering construction industry, FRP (glass fiber reinforced plastic pipe) is widely used in various fields, mainly for urban water supply and drainage engineering, urban cable engineering, etc. Its development and growth will promote the construction industry. role is important. 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 continuous evolution of building materials in the development process of the construction industry. The development history of cast iron pipe→cement pipe→reinforced concrete pipe, asbestos cement pipe→ductile iron pi...

Claims

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Application Information

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Patent Type & Authority Patents(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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