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Steel mesh plastic composite pipe machining process

A processing technology, a technology for composite pipes, applied in the direction of pipes, rigid pipes, tubular articles, etc., can solve problems such as disadvantage, easy bending deformation, reduction of rigid strength, etc. Effect

Pending Publication Date: 2018-05-08
杨明昆
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with the above-mentioned patent number CN98119383.8 pipe steel wire warp parallel to the pipe axial direction, pipe CN200420105205.8 has significantly lower rigidity in the axial direction and the circumferential direction, which is not conducive to the working condition requirements of overhead installation. , easy to bend and deform

Method used

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  • Steel mesh plastic composite pipe machining process
  • Steel mesh plastic composite pipe machining process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A steel mesh plastic composite pipe processing technology includes the following steps.

[0031] 1. Use a plastic extruder to extrude the inner plastic layer 2' and the functional layer 6' on a multi-layer co-extrusion die.

[0032] 2. Use the cooling water tank and the cooling sizing sleeve for plastic pipe extrusion processing, and at the same time pass the cooling medium into the mold mandrel to cool and shape the inner plastic layer 2' and the functional layer 6' at the same time.

[0033] 3. Use a plastic extruder and an overmolding mold to coat a layer of hot melt adhesive layer 5' on the surface of each steel wire of the steel wire layer 4'.

[0034] 4. Use a high-frequency heater to heat the steel wire layer 4' positioned on the surface of the inner plastic layer 2', and use a tractor to combine the heated steel wire layer 4' with the inner plastic layer 2' and the functional layer 6 'Synchronously pulling and advancing at the same speed, so that the steel wire...

Embodiment 2

[0041] Before the step one, the outer surface of the steel wire of the steel wire layer 4' and the steel wire mesh layer 3' is pressed into patterns. Other schemes are the same as in Embodiment 1.

Embodiment 3

[0043] As a further technical solution of the present invention, the cooling and shaping in the step 5 adopts the method of simultaneous cooling of the inner and outer molds, that is, the mold mandrel and the outer shaping mold of the mold are cooled by circulating cooling medium, and the cooling of the mold mandrel is adopted. The cooling mode of independent circulating cooling water in sections, the cooling temperature is controlled in sections, the cooling medium is water or oil or cooling gas, or water, oil and cooling gas are used in combination in sections. Other schemes are the same as in Embodiment 1.

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Abstract

The invention relates to a plastic pipe machining process, in particular to a novel steel mesh plastic composite pipe machining process. The novel steel mesh plastic composite pipe machining process comprises the steps of dividing wires, coating rubber, extruding an inner-layer plastic layer, extruding a hot-melt adhesive, winding a steel wire mesh layer, extruding a hot melt adhesive layer, extruding an outer-layer plastic layer and the like. According to the novel steel mesh plastic composite pipe machining process, axial steel wires and annular steel wire mesh structure are adopted at the same time, so that rigidity strength of a pipe is improved, and the pipe is not easy to bend and deform and is more suitable for the use working condition of overhead installation.

Description

technical field [0001] The invention relates to a plastic pipe processing technology, in particular to a steel mesh plastic composite pipe processing technology. Background technique [0002] Steel-plastic composite pressure pipes are widely used in municipal buried water supply, building buried water supply, buried fire water supply, industrial sewage discharge (pressure pipe), industrial acid-base solution and powder or slurry transportation. There are two types of composite pipes in the domestic market: steel skeleton polyethylene plastic composite pipe and steel mesh skeleton plastic composite pipe. [0003] The existing steel skeleton plastic polyethylene composite pipe (the structure is as described in the patent No. CN98119383.8, named "Reticular Steel Skeleton - Manufacturing Method and Device of Reticular Steel Skeleton of Plastic Composite Pipe" Chinese Invention Patent) during the production process , it is usually necessary to make the steel wire into a mesh ste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/00B29C47/02B29C47/06F16L9/147B29L23/00
CPCF16L9/147B29C48/0021B29C48/0022B29C48/09B29C48/15B29C48/151B29C48/154B29C48/21B29C65/02B29C65/4815B29C66/532B29C66/742B29L2023/22B29L2009/00B29L2009/003
Inventor 杨明昆
Owner 杨明昆
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