Large diameter steel-plastic pipe

A steel-plastic pipe, large-diameter technology, applied in the field of pipelines, can solve the problems of shortened service life, heavy weight, difficult transportation, handling and installation, increased pipeline operation costs and maintenance costs, etc., to improve corrosion resistance, manufacturing costs and The effect of weight reduction

Inactive Publication Date: 2005-12-21
张思忠
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0002] The large-diameter pipelines currently used in power plants and chemical plants mostly use stainless steel pipes, steel pipes or cement pipes. Due to the inevitable corrosion and rust during use, the service life is shortened and the operating and maintenance costs of the pipelines are increased. , and the weight is not easy to transport, handle and install

Method used

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  • Large diameter steel-plastic pipe

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Embodiment Construction

[0019] As shown in the figure, the large-diameter steel-plastic pipe of the present invention includes a pipe body, flanges 1 arranged at the two ports of the pipe body, and the pipe body is made of a steel pipe 2 and coated on the steel pipe 2 The plastic layer 3 on the inner and outer peripheral surfaces is formed; the material of the plastic layer 3 is made by mixing high-density polyethylene, glass fiber, butyl or propyl cellulose acetate according to the following proportions (parts by weight):

[0020] High-density polyethylene: 25 parts; glass fiber: 10 parts; butyl cellulose acetate: 0.5 parts.

[0021] The material ratio of the plastic layer 3 can also be:

[0022] High-density polyethylene: 40 parts; glass fiber: 20 parts; butyl cellulose acetate: 1.5 parts.

[0023] The material ratio of the plastic layer 3 can also be:

[0024] High-density polyethylene: 60 parts; glass fiber: 30 parts; propyl cellulose acetate: 2.5 parts.

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Abstract

The invention discloses a kind of steel-plastic tube of large caliber, which includes tube body. The tube body is composed of steel tube and the plastic layer wrapped onto the internal and external round face; the material of plastic layer is made by polyethylene of high density, Fiberglass, butyl or propyl cellulose acetate which are mixed by the proportion: polyethylene of high density: 25-60parts; Fiberglas 10-30parts; cellulose acetate 0.5-2.5parts. The advantages of the invention are as follows: increase by large scale causticity resisting, decrease by large cost and the weight. At the same time, it offers a broad way to reuse the deposing plastic, and it also makes the active social effect to depose the pollution of deposing plastic.

Description

technical field [0001] The invention relates to a pipe, in particular to a large-diameter steel-plastic pipe. Background technique [0002] The large-diameter pipelines currently used in power plants and chemical plants mostly use stainless steel pipes, steel pipes or cement pipes. Due to the inevitable corrosion and rust during use, the service life is shortened and the operating and maintenance costs of the pipelines are increased. , and the weight is not easy to transport, handle and install. Contents of the invention [0003] The object of the present invention is to provide a large-diameter steel-plastic pipe in view of the shortcomings of the above-mentioned prior art. [0004] To achieve the above object, the present invention can take the following technical solutions: [0005] The large-diameter steel-plastic pipe according to the present invention includes a pipe body and flanges arranged at both ends of the pipe body, and the pipe body is composed of a steel p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L9/147
Inventor 张思忠
Owner 张思忠
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