Welding method of stitch welding type multi-layered steel mesh skeleton

Abstract

The invention discloses a welding method of a stitch welding type multi-layered steel mesh skeleton. The welding method comprises the steps that, S1: a base steel mesh skeleton is welded and a weldingsupport electrode is used for support limiting for meridians; S2: a welding wheel of a base welding mechanism exerts pressure on a connecting welding point between a latitude line and a meridian andconducts welding; S3: welding is conducted on a first layer secondary reinforcing steel mesh skeleton outside the base steel mesh skeleton and meridians of the secondary reinforcing steel mesh skeleton and latitude lines of the base steel mesh skeleton are in direct contact and are welded together; S4: when a corresponding secondary welding mechanism is used to weld the first layer secondary reinforcing steel mesh skeleton, circumferential limiting is conducted to meridians thereof; and S5: when an N layer secondary reinforcing steel mesh skeleton is welded, the welding method is consistent with the welding method of the first layer secondary reinforcing steel mesh skeleton. According to the welding method, a welded product has the characteristics of being high in circumferential rigidity,high in pressure bearing ability, greatly lower in wall width of tubing, relatively low in mass, and convenient to store, transport, burry in land, and use, and is applicable to the technical field of composite tubing manufacturing.

Description

technical field [0001] The invention belongs to the technical field of composite pipe manufacture, and in particular relates to a welding method for a lap-welded multilayer steel mesh skeleton. Background technique [0002] The steel skeleton polyethylene plastic composite pipe for water supply (standard number: CJ / T 123-2016) is reinforced with a single-layer steel wire mesh skeleton, which is widely used in the field of pressurized water delivery, and is also widely used due to its excellent corrosion resistance In petrochemical and other fields. [0003] At present, the maximum specification of steel skeleton polyethylene plastic composite pipe is DN600, and the caliber continues to increase. The single-layer steel mesh reinforced structure can no longer meet the pressure requirements of the product. At the same time, the ring stiffness of the single-layer reinforced structure pipe is low, which limits the storage of pipes. Transportation and buried use. [0004] When a...

AI Technical Summary

Problems solved by technology

In the production of multi-layer stencil frame reinforced plastic composite pipe, the continuous welding technology of multi-layer stencil frame is a key technology, and there is no related introduction and invention at present. This invention will propose a multi-layer stencil frame Stitch welding technology provides support for the production of multi-layer steel mesh skeleton plastic composite pipes

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