Continuous glass steel pipeline manufacturing method and prepared glass steel pipeline

A manufacturing method and FRP technology, applied in the field of FRP pipelines, can solve the problems of intermittent production process, environmental pollution, poor controllability, etc., and achieve continuous production process, less environmental pollution and high production efficiency

Inactive Publication Date: 2015-02-04
ZHEJIANG ZHONGYI GLASS FIBER REINFORCED PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production process is highly designable, but the impregnated glass fiber winding method is adopted, the production process is intermittent, the controllability is poor, and it pollutes the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1) Wrap a layer of chopped strand mat (the specification is 600g / m2) on the surface of the mandrel (the specification is DN2.5cm*5M) 2 ), then the mandrel wrapped with chopped strand mat is put into a resin tank filled with resin composition, and the temperature is controlled to be room temperature, so that the first resin composition is infiltrated into the chopped strand mat, taken out after 2 minutes, and then used Glass fiber D2400 is woven on the surface of the chopped strand mat to form a leak-proof layer, and the chopped strand mat and the leak-proof layer together form the inner mold;

[0040] Wherein, the proportioning of the first resin composition used is as follows:

[0041]

[0042] (2) Use a traction device to advance the mandrel with the inner mold at a constant speed of 30 to 35 cm / min, and at the same time, use a straight yarn device to straighten the glass fiber D2400 on the surface of the inner mold obtained in step (1). Lay, and then use the win...

Embodiment 2

[0051] (1) Wrap a layer of chopped strand mat (the specification is 600g / m2) on the surface of the mandrel (the specification is DN2.5cm*5M) 2 ), then put the core rod wrapped with chopped strand mat into the resin tank filled with resin composition, control the temperature to be room temperature, make the resin composition penetrate into the chopped strand mat, take it out after 2 minutes, and then use glass fiber D4800 is woven on the surface of the chopped strand mat to form a leak-proof layer, and the chopped strand mat and the leak-proof layer together form the inner mold;

[0052] Wherein, the proportioning of used resin composition is as follows:

[0053]

[0054](2) Use a traction device to make the mandrel with the inner mold advance at a constant speed of 30 to 35 cm / min, and at the same time, use a straight yarn device to straighten the glass fiber D4800 on the surface of the inner mold obtained in step (1). Lay, and then use the winding device to wind the glass...

Embodiment 3

[0063] (1) Wrap a layer of chopped strand mat (the specification is 600g / m2) on the surface of the mandrel (the specification is DN2.5cm*5M) 2 ), then put the core rod wrapped with chopped strand mat into the resin tank filled with resin composition, control the temperature to be room temperature, make the resin composition penetrate into the chopped strand mat, take it out after 2 minutes, and then use glass fiber D2400 is woven on the surface of the chopped strand mat to form a leak-proof layer, and the chopped strand mat and the leak-proof layer together form the inner mold;

[0064] Wherein, the proportioning of used resin composition is as follows:

[0065]

[0066] (2) Use a traction device to advance the mandrel with the inner mold at a constant speed of 30 to 35 cm / min, and at the same time, use a straight yarn device to straighten the glass fiber D2400 on the surface of the inner mold obtained in step (1). Lay, and then use the winding device to wind the glass fib...

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Abstract

The invention discloses a glass steel pipeline and a continuous manufacturing method thereof. The method comprises the following steps: (1) wrapping a chopped strand mat on the surface of a core rod, using a first resin composition to fully penetrate the chopped strand mat, and then weaving glass fibers on the surface of the chopped strand mat so as to form a leakage-proof layer; (2) winding glass fibers around the leakage-proof layer obtained in the step (1), then impregnating the glass fibers in a second resin composition, and repeating the soaking operation for several times so as to obtain a semi-finished product; (3) heating, curing, and moulding the semi-finished product obtained in the step (2), and finally demoulding so as to obtain the glass steel pipeline. The glass steel pipeline has the advantages of high strength, and good pressure resistance, and is capable of effectively preventing the leakage, and moreover the manufacturing method is more environment-friendly.

Description

technical field [0001] The invention belongs to the field of FRP pipe manufacturing, and in particular relates to a continuous manufacturing method of FRP pipes and the prepared FRP pipes. Background technique [0002] Fiberglass reinforced plastic (FRP) is also known as SMC, that is, fiber reinforced plastic, which generally refers to glass fiber reinforced unsaturated polyester, epoxy resin and phenolic resin matrix. Reinforced plastics made of glass fiber or its products are called glass fiber reinforced plastics, or FRP. Due to the different types of resin used, it is called polyester FRP, epoxy FRP, and phenolic FRP. Lightweight and hard, non-conductive, high mechanical strength, less recycling, corrosion resistance. It can replace steel to manufacture machine parts, automobiles, ship shells, etc. [0003] FRP pipe is a lightweight, high-strength, corrosion-resistant non-metallic pipe. It is a glass fiber with a resin matrix weight that is wound on a rotating mandre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/32C08L63/10
CPCB29C70/32C08K5/098C08K5/14C08L63/10C08L2203/18C08L29/04
Inventor 阮张明
Owner ZHEJIANG ZHONGYI GLASS FIBER REINFORCED PLASTIC
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