A kind of production method of perforated steel strip reinforced composite pipe

Abstract

The invention discloses a production method of a perforated steel strip reinforced composite pipe, comprising the following steps: S1, unwinding the perforated steel strip from an unwinding machine; S2, obliquely winding the unrolled perforated steel strip on a welding support cylinder The steel strip welded pipe is welded on top; S3, the steel strip welded pipe rotates through the rotary composite molding die, and the plastic fluid extruded from the extruder enters the rotary composite molding mold to form an inner plastic layer and an outer plastic layer wrapping the steel strip welded pipe, and the rotary composite The front end of the forming mold is equipped with an outer sizing die that rotates in the same direction and at the same speed as the steel strip welded pipe, and the composite pipe passes through the inner hole of the outer sizing die to complete the outer sizing; S4, the composite pipe is sent into the cooling box for cooling; S5 1. The composite pipe is synchronously rotated and pulled by the rotating traction device; S6. The composite pipe is cut by an online synchronous cutting machine; S7. The cut composite pipe is folded and stored. The production method can produce a perforated mesh steel strip reinforced composite pipe with high surface quality on a continuous production line.

Description

technical field [0001] The invention relates to a production method of a perforated mesh steel strip reinforced composite pipe, and belongs to the technical field of composite production of plastic and metal pipes. Background technique [0002] The perforated steel strip reinforced composite pipe is formed by combining the plastic pipe and the steel strip welded pipe wound by the perforated steel strip. However, in the current forming process of the steel strip composite pipe, the steel strip passes through the steel coil machine After unwinding, argon arc welding is carried out on the rotary welding machine, and the steel strip is obliquely wrapped on the welding support cylinder to be welded into a tubular structure. However, because the steel strip welded pipe formed by welding is rotating, and the rotating pipe cannot be directly compounded in terms of the current process, the main reasons are two points: [0003] 1. The surface of the composite pipe formed by the curre...

AI Technical Summary

Problems solved by technology

[0003] 1. The surface of the composite pipe formed by the current composite molding device is not smooth, and there will be rotational friction between the rotating composite pipe and the mold, thereby forming spiral traces on the surface of the composite pipe, which are extremely large Affect the appearance quality of the composite pipe

[0004] 2. After the rotating steel belt pipe and plastic are compounded in the compound molding mold, they cannot be pulled by the tractor. The current tractor can only pull the non-rotating steel belt reinforced composite pipe, and the rotating steel belt reinforced composite pipe will not be drawn by the traction machine. The friction between the machines will seriously affect the surface quality of the composite pipe

Obviously this method is inefficient and more expensive

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