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Method for preparing polythene glass fibre resin-immersing composite pipe

A technology of glass fiber and production method, which is applied in the production field of polyethylene composite pipe, can solve the problems of affecting the use and poor pressure bearing capacity of large and medium-diameter pipes, and achieve the effects of reducing overall cost, optimizing performance and improving service life

Inactive Publication Date: 2008-08-13
东营华创科技有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of polyethylene plastic pipes is that large and medium-diameter pipes have poor pressure bearing capacity, which affects their use in water supply pipelines, gas transmission pipelines, oilfield produced water reinjection pipelines, various industrial pipelines, submarine pipelines, and oil-gas-water mixed transportation fields.

Method used

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  • Method for preparing polythene glass fibre resin-immersing composite pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Manufacture a polyethylene plastic pipe with a certain diameter and a certain length first, and install it on the winding machine through a clamp, so that the polyethylene plastic pipe rotates at a constant speed and at the same time makes a uniform axial movement, and presses 5 strands of glass fiber into the resin tank through the roller. After dipping in fat, it is evenly wound on the pipe wall of the polyethylene plastic pipe. The thickness and number of layers of the winding are determined by the pressure resistance of the pipe; after 8 hours of curing and curing at a temperature of about 70 degrees, the higher the temperature, the curing The shorter the time, the polyethylene fiberglass resin-impregnated composite pipe is done.

Embodiment 2

[0013] Manufacture polyethylene plastic pipes with a certain diameter and length first, and install them on the winding machine through clamps, so that the polyethylene plastic pipes rotate at a constant speed and at the same time make uniform axial movements, and press 20 strands of glass fibers into the resin tank through rollers After dipping in fat, it is evenly wound on the pipe wall of the polyethylene plastic pipe. The thickness and number of layers of the winding are determined by the pressure resistance of the pipe; after curing and curing for 5 hours at a temperature of about 90 degrees, the higher the temperature, the better The shorter the time, the polyethylene fiberglass resin-impregnated composite pipe is done.

Embodiment 3

[0015] Manufacture a polyethylene plastic pipe with a certain diameter and a certain length, install it on the winding machine through a clamp, make the polyethylene plastic pipe rotate at a constant speed and at the same time make a uniform axial movement, and press 8 strands of glass fiber into the resin tank through the roller After dipping in fat, it is evenly wound on the pipe wall of the polyethylene plastic pipe. The thickness and number of layers of the winding are determined by the pressure resistance of the pipe; after 5-8 hours of curing and curing at a temperature of about 80 degrees, the higher the temperature , the shorter the curing time, the more complete the polyethylene fiberglass resin-impregnated composite pipe.

[0016] Refer to attached figure 1 , the produced product is composed of polyethylene pipe 1 and glass fiber layer 2, and the outer layer of polyethylene pipe 1 is provided with resin-impregnated glass fiber layer 2; wherein, when multiple pipes ar...

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Abstract

The invention relates to a manufacturing method of a clad pipe specially polyethylene fiber glass impregnated clad pipe. The technical proposal is (1) taking a polyethylene plastic pipe with a certain length to fix on a winding machine which can whirl axially, thereby the polyethylene plastic pipe can move axially at a constant speed, (2) immerging multi-strand fiber glass into the resin, then winding the multi-strand fiber glass immerged with the resin on the outside pipe wall of the polyethylene plastic pipe, (3) conserving and solidifying for different time according to the number of turns of the glass fiber, then the polyethylene fiber glass impregnated clad pipe is finished. Beneficial effects are having essential differences from the traditional coating way in the inner of a tube, the novel clad pipe formed of tubes which is totally enclosed , has an inner erosion resistant coating and combined with fiber glass overcomes a drawback of polyethylene pipe, particularly a water supply system and optimizing service performance of the polyethylene plastic pipe.

Description

1. Technical field: [0001] The invention relates to a method for manufacturing a polyethylene composite pipe, in particular to a method for manufacturing a polyethylene glass fiber resin-impregnated composite pipe. 2. Background technology: [0002] Steel pipes are also widely used liquid transportation pipelines, but corrosion is one of the main reasons for steel pipelines to suffer losses during long-term operation. According to the analysis of existing pipeline failure accidents, the mechanical damage to the anti-corrosion layer takes the first place, and the corrosion takes the second place. Two, and plastic is one of the fastest-growing and most widely used new materials in this century. Because of its economy, corrosion resistance, and convenient construction, plastic pipes have many advantages that traditional pipe materials do not have. They are widely used in Water supply and drainage, gas transmission, industry and agriculture and other fields. The disadvantage of...

Claims

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Application Information

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IPC IPC(8): B29C53/56B29C53/80B29C70/40B29C70/10B29K105/08B29K309/08B29K23/00B29L23/00
Inventor 王培军周立超
Owner 东营华创科技有限责任公司
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