Polyethylene thermal-state winding solid-wall stud alloy pipe and manufacturing method thereof

Abstract

The invention discloses a polyethylene thermal-state winding solid-wall stud alloy pipe and a manufacturing method, and relates to the field of composite drainage pipes. A composite drainage pipe comprises a pipeline base body and a skeleton. The manufacturing method comprises the following steps that S1, a skeleton plate strip is extruded out from first plastic, cooling and shaping are carried out, and the skeleton plate strip comprises skeleton vertical ribs; S2, first plastic is extruded out of a base body plate strip; S3, the base body plate strip rotates around a shaping cylinder to be in lap joint to form the pipeline base body, and the skeleton plate strip is synchronously wound and bonded to the pipeline base body; S4, second plastic is extruded to fill open slots of the skeleton vertical ribs; and S5, the skeleton vertical ribs are rolled by a pressing wheel to form the composite drainage pipe. The skeleton is made of the plastic with high elasticity modulus, the pipeline base body is made of the plastic with low elasticity modulus, and compared with a pipe made of one raw material, the composite drainage pipe is resistant to corrosion, long in service life, high in ring stiffness, light in weight per meter and high in cost performance; and compared with a pipeline with a steel skeleton, the situation that the pipeline collapses due to the fact that the steel skeleton rusts is effectively avoided.

Description

technical field [0001] The invention relates to the field of alloy pipes, in particular to a polyethylene hot-state wound solid-wall vertical rib alloy pipe and a manufacturing method thereof. Background technique [0002] There are two kinds of drainage pipes on the market. One is made of pure polyethylene. This kind of pipe is corrosion-resistant and has a long service life. However, polyethylene has a low elastic modulus, and a lot of raw materials are needed to make pipes with high ring stiffness. The unit meter of this kind of pipe is heavy and the cost is high; the second type is a steel-plastic composite pipe. As we all know, steel is easy to rust, and once the steel skeleton inside the pipe is rusted, the pipe will collapse. Contents of the invention [0003] The object of the present invention is to design a kind of polyethylene thermal winding solid wall vertical rib alloy pipe and its manufacturing method in order to solve the above problems. [0004] The prese...

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Problems solved by technology

[0002] There are two kinds of drainage pipes on the market now, one is made of pure polyethylene material, this kind of pipe is corrosion-resistant and has a long service life, but the elastic modulus of polyethylene is low, so a lot of raw materials are needed to make pipes with high ring stiffness

The unit meter of this kind of pipe is heavy and the cost is high; the second type is a steel-plastic composite pipe. As we all know, steel is easy to rust, and once the steel skeleton inside the pipe is rusted, the pipe will collapse.

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