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Composite reinforced winding pipe and preparation method thereof

A technology of composite reinforcement and winding pipe, applied in the direction of pipes, rigid pipes, mechanical equipment, etc., can solve the problems of easy deformation of pipes, collapse of pipes, poor ring flexibility, etc., so as to avoid serious decrease of ring stiffness and improve ring stiffness and ring flexibility. , the effect of improving the safety of use

Active Publication Date: 2019-06-28
ZIBO JINYANGDA PLASTIC CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It aims to solve the problems of low ring rigidity and poor ring flexibility of pipelines in the prior art; the expansion coefficient of plastic and steel is different, and the pipeline is easy to deform; steel is easy to corrode, leading to pipeline collapse and other problems

Method used

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  • Composite reinforced winding pipe and preparation method thereof
  • Composite reinforced winding pipe and preparation method thereof
  • Composite reinforced winding pipe and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] like figure 1 As shown, according to an embodiment of the composite reinforced winding pipe 1 of the present invention, it includes a hollow pipe wall 2 and a reinforced skeleton 3, and the reinforced skeleton 3 is arranged in the hollow pipe wall 2; the hollow pipe wall 2 The outer wall 21 is provided with a through hole 22, the top 31 of the reinforced skeleton 3 is flush with the outer wall 21, and there is a gap 4 between the top 31 of the reinforced skeleton 3 and the outer walls 21 on both sides thereof; the hollow pipe wall 2 is HDPE material, the reinforced skeleton 3 is PVC material; the outer surface of the hollow pipe wall 2 is thermally covered with HDPE material layer 5; multiple hollow pipe walls are vertically connected by HDPE hot-melt material 6 .

[0066] like Figure 2-5 As shown, the shape of the reinforced skeleton is varied. The reinforcing frame 3 includes a horizontal bracket 32 ​​and an oblique bracket 33 , and the oblique bracket 33 is arrang...

Embodiment 2

[0080] According to another embodiment of the composite reinforced winding pipe of the present invention, its structure, positional relationship between components, beneficial effects, etc. are the same as those of Embodiment 1, the difference is:

[0081] The thickness of HDPE hollow pipe wall h=2mm;

[0082] The thickness of PVC skeleton H=4h=8mm;

[0083] The angle α between the horizontal support and the inclined support in the PVC skeleton is α=30°;

[0084] The gap C=0.8H=6.4mm between the horizontal support and the outer walls on both sides of the through hole in the hollow pipe wall;

[0085] The thickness of the heat-coated HDPE material layer on the outer surface of the HDPE hollow pipe wall is A, 2mm﹤A﹤8mm and A=2.5h=5mm.

Embodiment 3

[0087] According to another embodiment of the composite reinforced winding pipe of the present invention, its structure, positional relationship between components, beneficial effects, etc. are the same as those of Embodiment 1, the difference is:

[0088] The thickness of HDPE hollow pipe wall h=1.7mm;

[0089] The thickness of PVC skeleton H=3.8h=6.46mm;

[0090] The angle α between the horizontal bracket and the inclined bracket in the PVC skeleton is α=40°;

[0091] The gap C=0.5H=3.23mm between the horizontal support and the outer walls on both sides of the through hole in the hollow pipe wall;

[0092] The thickness of the heat-coated HDPE material layer on the outer surface of the HDPE hollow pipe wall is A, 1.7mm﹤A﹤6.46mm and A=2.2h=3.74mm.

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Abstract

The invention relates to a composite reinforced winding pipe. The composite reinforced winding pipe comprises a hollow pipe wall and a reinforced framework, the reinforced framework is arranged in thehollow pipe wall, a through hole is formed in the outer wall of the hollow pipe wall, the top of the reinforced framework is aligned with the outer wall, and a gap is formed between the top of the reinforced framework and the outer walls of the two sides of the reinforced framework, the hollow pipe wall is made of HDPE material, the reinforced framework is made of a PVC material, and an HDPE material layer is hot-coated on the outer surface of the hollow pipe wall. The invention further relates to a preparation method of the composite reinforced winding pipe. The preparation method comprisesthe following steps that the PVC reinforced framework is produced by using an extruder, and double-screw-rod extruding, shaping, cooling and winding rolling are conducted for using; an HDPE hollow strip is produced by using the extruder, single-screw-rod extruding, shaping, cooling and winding rolling are conducted for using; and the HDPE hollow strip and the PVC reinforced framework are wound, composited and molded on the extruder, and a layer of HDPE material is hot-coated on the outer surface to form the composite reinforced winding pipe. The composite reinforced winding pipe has the higherring stiffness and ring flexibility simultaneously.

Description

technical field [0001] The invention belongs to the technical field of municipal engineering, and in particular relates to a composite reinforced winding pipe and a preparation method thereof. The winding pipe is compounded by HDPE and PVC. Background technique [0002] In municipal engineering infrastructure, the pipes used in underground facilities such as drainage and sewage are mostly pure HDPE (high-density polyethylene) wall pipes, but the ring stiffness of pure HDPE wall pipes is low, the unit meter is heavy, and the production efficiency is low. In addition, the pure HDPE structural wall pipe has low strength, poor ring flexibility, delamination, and is very prone to disengagement of the structural wall connection. [0003] In order to improve the above phenomenon, some composite pipes have appeared. The pipe wall of this type of pipe is made of composite winding of plastic and steel. The steel will be corroded slowly during service, which will seriously damage the ...

Claims

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Application Information

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IPC IPC(8): F16L9/128B29C48/09B29C48/025B29C48/92B29K27/06B29K23/00
CPCB29C48/025B29C48/09B29C48/92F16L9/128
Inventor 高林梁强
Owner ZIBO JINYANGDA PLASTIC CO LTD
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