Superhigh molecular polyethylene compound pipe and method for manufacturing same

A polyethylene composite pipe, ultra-high molecular weight technology, applied in chemical instruments and methods, pipes/pipe joints/fittings, pipes, etc., can solve the problems of large investment in plant construction, high technical difficulty, and influence on popularization and application. Achieve the effect of less investment, less technical difficulty and simple process

Inactive Publication Date: 2007-05-16
山东东方管业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to different application occasions, these composite pipes have different structural characteristics and manufacturing methods, and each has its own shortcomings: some have high technical difficulty, complex process, and large investment scale for plant construction; some products have high cost; Due to the immature matching technology of on-site connection and jointing, it affects the popularization and application

Method used

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  • Superhigh molecular polyethylene compound pipe and method for manufacturing same
  • Superhigh molecular polyethylene compound pipe and method for manufacturing same
  • Superhigh molecular polyethylene compound pipe and method for manufacturing same

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Embodiment Construction

[0020] The technical process of the present invention is described in detail in conjunction with the accompanying drawings.

[0021] An ultra-high molecular weight polyethylene composite pipe, which is characterized in that it is composed of an ultra-high molecular weight polyethylene pipe 2 as the inner layer of the base pipe and an outer layer composed of a steel pipe 1 with a flange 3, and a gap is used between the inner layer and the outer layer Cooperate, the ultra-high molecular weight polyethylene pipe matrix pipe material of the inner layer at both ends of the composite pipe is turned out and bonded with the flange to form a connection sealing surface.

[0022] The inner and outer layers adopt clearance fit, and the clearance is between 1-1.5mm.

[0023] The ultra-high-molecular-weight polyethylene composite pipe is characterized in that the ultra-high-molecular-weight polyethylene pipe is lined with steel pipes by composite equipment, and the ultra-high-molecular-weig...

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Abstract

The invention relates to a metal and nonmetal combined pipe and its processing method. It is made of inside and outside layers and a linkage flange, featuring on the steel pipe with flange as the outside of the reinforcement layer, coated with super high molecular weight-high density polyethylene pipe as the inside of the base pipe which extends to the outside edge of the flange end face to form an integral piece along the opening of the exterior layer. The steel pipe is firstly flange welded, lining the super high molecular weight-high density polyethylene pipe to the steel pipe with the material being heated, insulated, flanged, chilled and shaped, and put to stock passing quality inspection. With not too difficult techniques, simple process, quick plant construction, small investment and high using value of products. With straight angle ridge of the lining, it can safeguard the precision of the pipe engineering, having the ability of bearing pressure 6 Mpa.

Description

technical field [0001] The invention relates to a metal and non-metal composite pipe and a manufacturing method thereof, in particular to an ultra-high molecular weight polyethylene composite pipe and a manufacturing method thereof. The invention belongs to the technical field of composite pipe manufacturing. Background technique: [0002] With the continuous development of pipeline engineering technology, various types of rigid composite pipes have come out one after another, and rigid composite pipes can generally be divided into two categories. One is a metal tube as the base material, lined or outsourced with non-metallic materials to form a multi-layer composite tube; the other is a multi-layer composite tube made of several different non-metallic materials. All kinds of composite pipes have their corresponding manufacturing methods. For example, "Steel Pipeline Thermal Insulation and Anticorrosion Layer Forming Method in One Step" (85102477.7), "Corrosion and Pressur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L9/147F16L23/02F16L23/026B32B37/00
Inventor 王贵德杨军
Owner 山东东方管业有限公司
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