Socket reinforced composite plastic pipe and manufacturing process thereof

Abstract

The invention relates to a socket reinforced composite plastic pipe and a manufacturing process thereof, and the socket reinforced composite plastic pipe comprises a pipe wall and a socket, wherein a convex ring is arranged at the pipe wall with the inner diameter of L at the end part of the socket, plastics and resin are mixed for being taken as raw materials, and the technical scheme simultaneously produces a product under the synchronous control of a drying machine, an extrusion machine, a mold head, a mold, a vacuum box, a spraying box, a traction machine, a cutting machine and other equipment. The socket reinforced composite plastic pipe can overcome the defects that the strength and the rigidity of the cross section at the butt joint between the pipe and the socket can not bear the internal pressure in the pipe for the existing polyethylene resin composite pipe-PE pipe, thereby causing expansion, deformation and cracking of the pipe wall of a pipe, further resulting in water leakage and gas leakage of a pipeline and causing difficult maintenance of a water supply system, a gas supply system and a liquid supply system, serious loss of resources, environmental pollution caused by gas leakage and the like; and the socket reinforced composite plastic pipe is applicable to being used as connecting pipe for various water transportation projects and gas transportation projects, in particular to socket thickening and reinforcing of PE, PVC-U, PVC-M and other plastic pipes.

Description

Technical field [0001] The invention relates to a socket-reinforced composite plastic pipe and its manufacturing process. Background technique [0002] The existing polyethylene resin composite pipe, commonly known as PE pipe, has the characteristics of easy construction and installation, and is used in the water supply and drainage and gas transportation industries. However, in the process of construction and installation, most of the welding method of electrofusion pipe fittings is adopted. This construction and installation method is affected by the environmental factors of the construction site and personal operating skills. The lateral movement and misalignment of the two socket pipe walls during welding make The non-"roundness" of the butt joint of the pipe socket increases and it is difficult to ensure the quality of the butt joint. The "roundness" is the two concentric areas with a certain value of radius difference on any normal section of the socket butt; especially for...

AI Technical Summary

Problems solved by technology

However, in the process of construction and installation, most of them adopt the butt joint method of electric fusion pipe fittings. This construction and installation method is affected by the environmental factors of the construction site and personal operation skills. The mutual lateral movement and dislocation of the two socket pipe walls during welding The non-"roundness" of the butt joint of the pipe socket increases and it is difficult to ensure the quality of the butt joint. The "roundness" is two concentric circles with a radius difference of a certain value on any normal section of the socket butt joint; especially for For pipes with lower pressure ratings (that is, thinner pipe walls), it will be more difficult to ensure the quality of the butt joint due to the non-"roundness" of the pipe socket joint; as a result, the cross-sectional strength and rigidity of the pipe socket joint will not be able to bear The pressure inside the pipe causes the pipe wall to bulge, deform, and even crack, resulting in water and air leakage in the pipe, resulting in difficulties in maintaining water, gas, and liquid supply systems, serious resource losses, and environmental pollution caused by gas leakage

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