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Metal-plastic composite tube provided with enhanced sealing mechanisms on end parts and manufacturing method thereof

A metal-plastic, end-strengthening technology, applied in the direction of pipes, rigid pipes, mechanical equipment, etc., can solve the problems of slow delamination of the inner wall of the metal pipe and the plastic layer, slow delamination of metal and plastic, and easy loss of bonding properties, etc. Achieve the effect of uncomplicated equipment, improved hygienic performance and low production cost

Pending Publication Date: 2019-09-24
HUNAN ZHENHUI PIPE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, practice has shown that metal-plastic composite pipes are exposed to water for a long time, because part of their end faces are still immersed in water. On the other hand, the hot melt adhesive used in the metal-plastic composite pipe will react with water at the end and easily lose its bonding performance, and this effect will gradually advance into the pipe, causing the metal and plastic to slowly delaminate
After a long separation process, the plastic lining may fall off in the later stage of pipe network operation, resulting in blockage of pipes and affecting water flow, especially when used in tap water transportation, where the corroded metal pipes are in direct contact with water, which will seriously affect the water supply quality

Method used

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  • Metal-plastic composite tube provided with enhanced sealing mechanisms on end parts and manufacturing method thereof
  • Metal-plastic composite tube provided with enhanced sealing mechanisms on end parts and manufacturing method thereof
  • Metal-plastic composite tube provided with enhanced sealing mechanisms on end parts and manufacturing method thereof

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Experimental program
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Effect test

Embodiment 1

[0044] Refer to attached Figure 1-4 , the metal-plastic composite pipe is a socket-type ductile iron pipe lined with plastic pipe in this embodiment, and this embodiment includes a socket-type ductile iron pipe body 1 lined with plastic pipe and a reinforced sealing mechanism 2, and the reinforced sealing mechanism 2 It is arranged at both ends of the plastic-lined pipe socket type ductile iron pipe body 1 .

[0045] In this embodiment, the end reinforced sealing mechanism 2 includes a stainless steel reinforcing ring 2-1 and a rubber sealing ring 2-2 with a circular cross section.

[0046] In this embodiment, the stainless steel reinforcing ring 2-1 includes a stainless steel reinforcing ring main body 2-1-1 and a flange 2-1-2, and the outer wall of the stainless steel reinforcing ring main body 2-1-1 is provided with embossing , embossing can increase the friction between the metal reinforcement ring and the inner wall of the metal-plastic composite pipe, so that the insta...

Embodiment 2

[0061] Refer to attached Figure 5-8 , the metal-plastic composite pipe is a straight plastic-lined steel pipe in this embodiment, and this embodiment includes a plastic-lined steel pipe body 1 and an end reinforced sealing mechanism 2, and the end reinforced sealing mechanism 2 is arranged on the plastic-lined steel pipe Both ends of body 1.

[0062] In this embodiment, the end reinforced sealing mechanism 2 includes a stainless steel reinforcing ring 2-1 and a rubber sealing ring 2-2 with a circular cross section.

[0063] In this embodiment, the stainless steel reinforcing ring 2-1 includes a stainless steel reinforcing ring main body 2-1-1 and a flange 2-1-2, the outer wall of the main body 2-1-1 is provided with embossing, and the flange 2 -1-2 is located at the outer end of the main body 2-1-1. The rubber sealing ring 2-2 is sleeved on the outer wall of the main body 2-1-1 of the stainless steel reinforcement ring and clings to the flange 2-1-2 at the outer end of the ...

Embodiment 3

[0078] Such as Figure 9 As shown, in this embodiment, the outer wall of the flanging of the metal reinforcement ring 2 - 1 is flush with the outer wall of the plastic-lined steel pipe body 1 .

[0079] Remaining with embodiment 2.

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Abstract

The invention relates to a metal-plastic composite tube provided with enhanced sealing mechanisms on end parts and a manufacturing method thereof. The metal-plastic composite tube comprises a metal-plastic composite tube body. The enhanced sealing mechanisms are arranged at two ends of the metal-plastic composite tube body. The invention also provides a manufacturing method of the metal-plastic composite tube. The end surfaces of the metal-plastic composite tube are prevented from being in contact with water, so that the metal-plastic composite tube where water passes for a long time is not layered and cracked.

Description

technical field [0001] The invention relates to a metal-plastic composite pipe, in particular to a metal-plastic composite pipe with a reinforced sealing mechanism at the end and a manufacturing method thereof. Background technique [0002] Metal-plastic composite pipes are widely used in water supply, drainage, sewage, chemical and other fields because of their good mechanical properties, sanitation and environmental protection, high water delivery efficiency, and low operating costs, as well as the respective advantages of metal pipes and plastic pipes. [0003] CN109237146A disclosed an embedded end reinforced ring metal-plastic composite pipe and its manufacturing method on January 18, 2019. The embedded end reinforced ring metal-plastic composite pipe includes a metal-plastic composite pipe body. The two ends of the composite pipe body are respectively provided with embedded reinforcing rings, one end of the embedded reinforcing ring has a flanging, and the flanging is ...

Claims

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Application Information

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IPC IPC(8): F16L9/147
CPCF16L9/147
Inventor 尹希伟肖和飞张新爱罗安明
Owner HUNAN ZHENHUI PIPE IND
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