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Composite pipe and manufacturing method

A manufacturing method and technology for composite pipes, applied in the direction of pipes, rigid pipes, tubular articles, etc., can solve problems such as falling off

Active Publication Date: 2018-11-27
SHENZHEN YINXIU TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But, because the melting point of polyethylene is about 100-130 °, and the processing temperature of polyvinyl chloride is generally controlled between 170-190 °, in the prior art, polyvinyl chloride and polyethylene are directly compounded, so it is easy to disengage between

Method used

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  • Composite pipe and manufacturing method

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Experimental program
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Effect test

Embodiment 1

[0038] figure 1 The perspective view of the composite pipe provided for the embodiment of the present invention; figure 2 The front view of the composite pipe provided for the embodiment of the present invention; image 3 A cross-sectional view of a composite pipe provided by an embodiment of the present invention. Such as figure 1 , 2 As shown in and 3, a composite pipe provided by the present invention includes: a pipe body;

[0039] The pipe body is composed of an inner layer 100, an outer layer 300 and an intermediate layer 200; the inner layer 100 and the outer layer 300 are compounded through the intermediate layer 200;

[0040] The inner layer 100 is polyethylene, and the outer layer 300 is polyvinyl chloride.

[0041] Wherein, the inner layer 100 may also be polypropylene.

[0042] Wherein, the outer layer 300 may also be steel.

[0043] A composite pipe provided by the present invention includes: a pipe body; the pipe body is composed of an inner layer 100, an...

Embodiment 2

[0073] Figure 4 It is a flow chart of the composite pipe manufacturing method provided by the embodiment of the present invention. Such as Figure 4 Shown, the manufacturing method of composite pipe;

[0074] The specific manufacturing method is as follows:

[0075] Step 1: The polyethylene raw material is extruded through the mold to extrude the PE tube of the core tube layer, and the PE tube of the core tube layer is water-cooled and vacuum-shaped;

[0076] Step 2: After the outer skin of the core tube is heated in an oven, the adhesive resin is hot-melt extruded onto the core tube;

[0077] Step 3: Air-cool the skin of the core tube and then enter the vacuum mold to continue the vacuum mold;

[0078] Step 4: Hot-melt extrude and compound polyvinyl chloride plus various additives on the adhesive resin layer of the outer skin of the core pipe to form an outer layer of 300PVC pipe material, and the product is successfully compounded after water cooling and vacuum setting;...

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PUM

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Abstract

The invention relates to the technical field of plastic tubes, and in particular relates to a composite tube and a manufacturing method. The composite tube comprises a tube body which comprises an inner layer, an outer layer and a middle layer, wherein the inner layer and the outer layer are composited through the middle layer; the inner layer is manufactured through polyethylene; the outer layer is a polyvinyl chloride layer. According to the composite tube, the technical problem that polyethylene and polyvinyl chloride are composited and fall off during use in the prior art can be reduced.

Description

technical field [0001] The invention relates to the technical field of plastic pipes, in particular to a composite pipe and a manufacturing method. Background technique [0002] In modern industry, pipes have been widely used. In industries such as electric power, cement, mining and steel, abrasion resistant pipes are especially required. Such as power plant ash and fly ash are transported through wear-resistant pipelines on the production line. However, due to the complexity of the application environment, higher and higher requirements are placed on the performance of pipeline materials. The common types of pipes commonly used today generally have problems such as single function, limited performance or high cost, so it is particularly important to develop new high-performance composite pipes. [0003] At present, PVC (polyvinyl chloride) resin is one of the most widely used plastic materials in plastic pipes. PVC is a vinyl polymer substance, and its material is a non-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L9/12B29D23/00B29K27/06B29K23/00
CPCB29D23/001B29K2023/06B29K2027/06F16L9/121
Inventor 王智勇胡胜文滕浩
Owner SHENZHEN YINXIU TECH CO LTD