Rotary type plasma removing system for flash butt welding seam burrs outside pipes

Abstract

A rotary type plasma removing system for flash butt welding seam burrs outside pipes comprises a base, a pipe clamping mechanism, a pipe supporting frame, an annular track mechanism, a plasma gouging torch mechanism and a control system. The plasma gouging torch mechanism is connected to the annular track mechanism and can conduct circular motion along the annular track mechanism to be used for plasma removing of welding seam burrs and heat treatment of welding seams. The system is good in flexibility, the same system can be adopted for conducting welding seam burr removing and heat treatment on welding seams outside pipes of different diameters, the welding seam burr removing effect is good, heat treatment can be carried out on welding seams while burrs are removed, the structural constituent and mechanical property of welding seams can be improved remarkably, and the service life of welding seams is prolonged. In addition, the system is compact in structure, can realize overall miniaturization easily, has a wide application range, and can be used for conducting welding seam burr removing and welding seam heat treatment on metal pipes which have the diameters of 200 mm-400 mm and are made from different materials.

Description

technical field [0001] The invention relates to the technical field of plasma technology applied to pipeline flash butt welding, in particular to a rotary plasma removal system for flash butt welding seam burrs outside a pipe. Background technique [0002] Flash butt welding is an advanced welding method, the welding process parameters are easy to control and adjust, the process is stable, and the joint quality is good. Compared with the traditional welding method, it has the following advantages: ①It belongs to solid phase welding, there is no molten pool, and the welding quality ② No need to add deposited metal, the chemical composition of the welded joint is the same as that of the base metal; ③ No need for gas protection or slag protection, eliminating the source of pollution; ④ High degree of automation, not relying on manual welding skills; ⑤ Short welding cycle and high welding efficiency. Although the flash welding technology has many advantages, there is a very crit...

AI Technical Summary

Problems solved by technology

However, the labor intensity of the workers of the manual grinding method is high and the efficiency is low

The disadvantage of the mechanical push-and-convex method when deburring pipe welded joints is that for each size of pipe, a separate deburring device is required, which is costly

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