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Manufacturing technology of hgih pressure bearing glass fiber reinforced plastic oil transfer pipeline

A production process and oil pipeline technology, applied in the field of high-pressure glass fiber reinforced plastic pipeline forming process, can solve the problems of inability to realize external heat curing system, inability to realize curing process temperature, uncontrollable heating process, etc., and achieve reliable guarantee of strength performance indicators, Small footprint and easy temperature control

Active Publication Date: 2008-10-22
JIANGSU XINYANG NEW MATERIALS CO LTD
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AI Technical Summary

Problems solved by technology

The heating process of this curing method cannot be controlled, and can only reach a maximum curing temperature. During the heating process, only heating or cooling can be achieved, and the curing process temperature cannot be controlled by a curve.
The curing mechanism of epoxy resin is a temperature curve, so the external heat curing system cannot achieve
In addition, the curing of epoxy resin is a complex chemical reaction process. External thermal curing is gradually cured from the outer wall to the inner wall of the tube. During curing, many molecular gases will be generated, and once the outer wall is cured, it will prevent the gas molecules from overflowing, which is easy Bubbles form in the pipe body, reducing pipe strength

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] 1. Wrap the high-pressure glass steel pipe outside the mould: there is a winding trolley on the outside of the mold that can move parallel to the length of the mold. Computer programs are used to control the mold speed and the moving speed of the winding trolley, and the high-strength glass fiber is wound outside the mold for curing. Form a high pressure FRP oil pipeline.

[0011] 2. Curing: Put steam and water into the mold, and use a computer to control the amount of steam circulation and circulating water temperature in the mold. Heat the mold wrapped around the high-pressure FRP oil pipeline at 30°C for 20 minutes, then heat it up to 130°C within 10 minutes, then heat it for 20 minutes, heat it up to 200°C within 10 minutes, and heat it for 20 minutes. Cool down to 80°C inside, keep warm for 20 minutes, then cool down to room temperature. The above-mentioned temperatures are mold cavity temperatures.

[0012] 3. Release the mold after cooling down to room temperat...

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Abstract

The present invention relates to a forming process of high pressure glass fibre reinforced plastic oil-transferring pipe. Said forming process includes the following steps: setting a winding bogie outside of mould, said winding bogie is parallel to said mould and can be moved along the length direction of said mould, rotating main shaft of mould, making the high-strength glass fibre be winded round outside of said mould, introducing steam and water into the interior of said mould, curing so as to form the invented high pressure glass fibre reinforced plastic pipe.

Description

technical field [0001] The invention relates to a forming process of a high-pressure glass fiber reinforced plastic pipe. Background technique [0002] The curing method of high-pressure FRP pipes has a great impact on product performance. In the past, people used external heat curing methods to finalize the shape, that is, firstly, high-pressure FRP pipes were wound outside the mold, and then the outer wall of the pipe was baked and cured by infrared rays. The heating process of this curing method cannot be controlled, and only a maximum curing temperature can be reached. During the heating process, only heating or cooling can be realized, and the curing process temperature cannot be controlled by a curve. The curing mechanism of epoxy resin is a temperature curve, so the external heat curing system cannot be realized. In addition, the curing of epoxy resin is a complex chemical reaction process. External thermal curing is gradually cured from the outer wall to the inner w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C53/66B29C53/84B29L23/00
Inventor 李俊
Owner JIANGSU XINYANG NEW MATERIALS CO LTD
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