Manufacturing technology of steel strip composite reinforced polyethylene spiral bellows

A polyethylene spiral and composite reinforcement technology, which is applied in the direction of tubular articles, other household appliances, household appliances, etc. Inner and outer layers and other problems to achieve the effect of increasing the service life

Inactive Publication Date: 2019-01-15
SICHUAN HUIDA PIPE IND SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current corrugated pipe is usually divided into three layers, the inner layer is a continuous solid wall inner tube, the middle layer is an annular steel belt reinforcement, and the outer layer is an HDPE outer layer. The annular steel belt reinforcement in the prior art is directly coated with a steel bel

Method used

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Embodiment Construction

[0019] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other implementations obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0020] In a series of specific embodiments, the manufacturing process of the steel strip composite reinforced polyethylene spiral corrugated pipe provided by the present invention, the method is operated according to the following steps:

[0021] Step 1. Degrease and clean the steel strip in the steel strip cleaning machine, then remove the water on the steel strip through high-frequency heating, and then bake the steel strip in an oven to completely dry the ste...

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Abstract

The invention discloses a manufacturing technology of a steel strip composite reinforced polyethylene spiral bellows. The manufacturing technology of the steel strip composite reinforced polyethylenespiral bellows comprises the following steps of punching, degreasing and cleaning a steel strip, and carrying out pre-stress relief molding bending treatment to bend a cross section of the steel stripinto an omega shape. According to the manufacturing technology of the steel strip composite reinforced polyethylene spiral bellows, a design of punching the two side parts of the steel strip is adopted, so that resin of the inner layer and the outer layer of the steel strip mutually penetrate at the punching parts after the steel strip is finally wound and molded to form a rivet-shaped structure,the inner layer and the outer layer can be fully and effectively integrated, layering caused by insufficient bonding force between the inner layer and the outer layer of a steel strip pipe in futureuse is solved, and the service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of steel strip reinforced polyethylene spiral corrugated pipes, in particular to a manufacturing process of steel strip composite reinforced polyethylene spiral corrugated pipes. Background technique [0002] HDPE double-wall bellows, referred to as PE bellows, was first successfully developed in Germany in the early 1980s. After more than ten years of development and improvement, it has developed from a single variety to a complete product series. Due to its excellent performance and relatively economical cost, it has been greatly promoted and applied in developed countries such as Europe and the United States. Double-wall corrugated pipe is a new type of lightweight pipe made of high-density polyethylene. It has the characteristics of light weight, high pressure resistance, good toughness, fast construction, and long life. Its excellent pipe wall structure design is different from other structures. Compa...

Claims

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Application Information

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IPC IPC(8): B29D23/18
CPCB29D23/18
Inventor 刘刚
Owner SICHUAN HUIDA PIPE IND SCI & TECH CO LTD
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