Pipeline of composing metal with polythene

A technology of composite pipes and polyethylene, which is applied in the field of graft modification of polyethylene materials, can solve the problems such as the interface is not easy to be firmly bonded and compounded, and achieve the effect of reliable performance of the pipe network.

Inactive Publication Date: 2007-09-19
甘国工
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The purpose of the present invention is to overcome the above deficiencies and provide a metal and polyethylene composite pipe that can solve the technical proble...

Method used

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  • Pipeline of composing metal with polythene

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Embodiment 1

[0031] Fig. 1 has provided the figure of embodiment 1 of the present invention. The three-way pipe fitting 1 has a steel plate with holes rolled and welded cylindrical frame 2, and the polyethylene continuum 3 with polar groups passes through the holes on the cylindrical frame 2 and bonds with the inner and outer surfaces of the cylindrical frame And clad to form the tube wall. The pipe 4 has a steel plate metal cylindrical framework 5 with holes, and a polyethylene continuum 6 with polar groups passes through the cylindrical framework 5 to adhere to its inner and outer surfaces and wrap it to form a pipe wall. In the pipe 7, there is a cylindrical metal skeleton 10 formed by welding the latitudinal steel wire 8 around the radial steel wire 9, and the polyethylene continuum 11 with polar groups passes through the cylindrical metal skeleton 10 and its inner and outer surfaces are firm. Glue and clad it to form the pipe wall. The pipes 4 and 7 are respectively located at both ...

Embodiment 2

[0040] Figure 2 is a diagram of an embodiment of the present invention. Embodiment 2 is basically the same as Embodiment 1. The difference is that the metal skeleton 3 in the pipe fitting 4 is a cylindrical skeleton 12 in which radial steel wires are wound by weft steel wires. Compared with pure plastic pipes, the composite pipe has a linear expansion rate similar to that of metal pipes, which is an excellent performance required by engineering.

[0041] The core tube with a diameter of φ200 is produced by polyethylene with polar groups in advance, and the steel wires coated with polyethylene with polar groups are wound left-handed and right-handed on the core tube to form a cross grid. The core tube is heated, and at the same time, the cross extrusion head is used to extrude polar polyethylene to cover the steel wire, and at the same time, the holes are filled with polar polyethylene to make it firmly bond and cover the cross steel wire, and at the same time pass through the...

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Abstract

The invention provides a metallic polyethylene combined canal, the canal wall of which is provided with tubular metal frame having apertures as reinforcement bodies, the grafting modified polyolefin polymer continuum with polar group is firmly glued and coated on the frame surfaces through apertures on the tubular metallic frame on inner-outer surfaces of the frame, grafting ratio of the grafting modified polyolefin is 0.12 percent to 1.5 percent. The invention solves technical problem of hard firm integral gluing of metallic and polyethylene combination interface.

Description

Technical field: [0001] The invention relates to the graft modification of polyethylene material, which is modified from a non-polar polymer to a polar polymer, relates to the production technology of metal and polyethylene composite pipes, and particularly relates to a metal cylinder with holes as a reinforcement Pipes and fittings that are composited with shaped skeleton and polar polyethylene material. technical background: [0002] Metal-polymer composite pipes, including pipes and pipe fittings, have many technical and patent reports, and there are also a large number of products and engineering applications in practical engineering applications. This composite pipe has become an important industry that is constantly developing and progressing. [0003] Metal pipes have high strength and low coefficient of thermal expansion, but they are not resistant to corrosion. Not only can they not transport corrosive fluids, even if they transport non-corrosive fluids, at least th...

Claims

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Application Information

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IPC IPC(8): F16L9/147C08F255/02B29C35/00
Inventor 甘国工
Owner 甘国工
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