Device and process for producing steel-plastic winding and welding corrugated pipes

Abstract

The invention discloses a device and a process for producing steel-plastic winding and welding corrugated pipes. The device comprises a steel strip winding and unwinding device, a steel strip butting device, a steel strip derusting device, a strip forming device, a steel strip drying and heating device, a gluing die, a glue layer extruder, an inner-outer layer coating die, an inner-outer coating extruder, a coated strip forming device, a coated strip dragging device, a coated strip cutting device, a coated strip conveying device, an inner layer heating device, an inner layer welding strip extruder, a welding device, a bending and forming device, an outer layer heating device, an outer layer welding strip extruder, a pipe cutting device and a pipe support bracket. The device and the process for producing the steel-plastic winding and welding corrugated pipes have the effects that the steel-plastic winding and welding corrugated pipes are continuously produced; since the steel-plastic winding and welding corrugated pipes are continuously welded, the steel-plastic winding and welding corrugated pipes have the characteristics of common steel strip corrugated pipes and common plastic-steel winding riffled pipes and also have the independent advantages of being capable of bearing strong axial tension.

Description

Technical field [0001] The invention relates to a steel-plastic composite material pipe machinery and production process, in particular to a steel-plastic winding and welding corrugated pipe equipment and production process. Background technique [0002] The name of this type of pipe: steel-plastic wound welded bellows, mainly used for underground coal mine gas drainage, submarine natural gas extraction, urban drainage, sewage system pipes to withstand the negative pressure in the pipe. [0003] Traditional HDPE double-wall corrugated pipes, both inner and outer walls are made of HDPE raw materials. The outer wall of the corrugated pipe has a ring-shaped corrugated structure, which enhances the ring stiffness of the pipe, thereby enhancing the resistance of the pipe to soil loads. In this performance, HDPE double-wall corrugated Compared with other pipes, pipes have obvious advantages. Under equal load conditions, HDPE double-wall corrugated pipes only need a thinner pipe wall to m...

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Problems solved by technology

[0004] The problem in the prior art to be solved by the present invention is: in the prior art, the gap between the steel belt bellows steel belt and the steel belt is connected by PE plastic, although it can withstand strong radial pressure The axial tensile strength is poor. In order to solve the above problems in the prior art, the technical solution adopted is to provide a continuous production of steel-plastic wound welded bellows equipment and production technology. The steel plate of the steel-plastic wound welded bellows is continuous Welded, not only has the characteristics of ordinary steel belt bellows, ordinary plastic steel winding reinforced pipe, but also has its own advantages: can withstand strong axial tension

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