Composite reinforced winding-type pressure pipe and forming method thereof

Abstract

The invention relates to the technical field of plastic pressure pipes, in particular to a composite reinforced winding-type pressure pipe. The composite reinforced winding-type pressure pipe comprises an outer plastic layer, an inner plastic layer and a long glass fiber sheet reinforced plastic layer arranged between the outer plastic layer and the inner plastic layer. The long glass fiber sheet reinforced plastic layer comprises a long glass fiber sheet and a plastic composite layer wrapping the long glass fiber sheet, and the long glass fiber sheet is wound on the outer surface of the inner plastic layer through the wrapping plastic composite layer to form the long glass fiber sheet reinforced plastic layer; the long glass fiber sheet is composed of regularly-distributed long glass fibers, and the long glass fibers are flaky. The invention further discloses a forming method of the composite reinforced winding-type pressure pipe. Through the composite reinforced winding-type pressure pipe and the forming method of the composite reinforced winding-type pressure pipe, the process that the long glass fiber sheet is wrapped by the plastic composite layer and then wound on the outer surface of the inner plastic layer is simple, the production cost is low, and the yield is high. The pressure resistance is high, and the process stability is good. In addition, the long glass fibers are regularly distributed, so that the strength of the formed pressure pipe is uniform.

Description

technical field [0001] The invention relates to the technical field of plastic pressure pipes, in particular to a composite reinforced winding pressure pipe and a forming method thereof. Background technique [0002] Compared with traditional pressure pipes, large-diameter plastic pressure pipes have better hygienic performance and anti-seismic performance, and have better overall performance than traditional large-diameter pressure pipes (such as PCCP pipes or ductile iron pipes, etc.), so the manufacturing conforms to the application The required large-diameter plastic pressure pipe is a problem that those skilled in the art are trying to solve. [0003] At present, the use of winding and welding forming technology to manufacture large-diameter pressure-free plastic pipes has been popularized, and practice has proved that the winding and welding structure wall pipes manufactured in accordance with relevant standards are reliable in the field of non-pressure pipes such as b...

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Problems solved by technology

[0009] In view of this, the technical problem to be solved by the present invention is to provide a composite reinforced winding pressure pipe to solve the problems of low and uneven strength of the existing plastic reinforced pressure pipe, and the complex and unstable molding process

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