ERW welding pipe on-line external burr removing technique

Abstract

The invention relates to an on-line outer-burr eliminating technique for an ERW welding pipe, in particular to a method for a welding pipe welding-seam burr eliminating technique, and the method is especially suitable for the outer burr one-line elimination of a production line of the ERW welding pipe with a large caliber. An outer-burr scoring device, an outer-burr chipping device, an outer-burr milling device, a scoring roller, a chipping device, a used milling device, a standby milling device, a matched regulating device, a carrier roller, a press roller and a power system are sequentially arranged behind an extrusion stand on the production line of the ERW welding pipe to execute combined processing such as scoring, chopping, chipping and milling for the outer burr of a welding seam, thereby the invention can realize the function of the full-length continuous elimination of the outer burr of a welding seam in real time and achieve the purpose of the reliable and thorough on-line elimination of the outer burr of a welding seam. Furthermore, the invention not only can enhance the operating efficiency of a machine set, but also can improve the finished product ratio of the production line of the ERW welding pipe.

Description

Technical field: [0001] The invention relates to a welding seam burr removal process for welded pipes, in particular to an online burr removal process for ERW welded pipes, and is particularly suitable for the online removal of burrs in medium and large diameter ERW welded pipe production lines. Background technique: [0002] In the production process of ERW welded pipe, after the strip steel is rolled into a barren pipe through roll forming, high-frequency induction heating, and extrusion welding, extrusion burrs are generated on the inside and outside of the weld, and the outer burr of the weld needs to be cleaned online. For ERW welded pipes, all welded pipe enterprises are conducting research on how to effectively remove internal and external burrs and improve the surface quality of welded pipes. At present, whether at home or abroad, the external burrs of ERW welded pipes are cleaned by the traditional planing method. Because this method is simple, practical and easy to...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to use a new on-line external burr removal process to eliminate the phenomenon that the yield of finished products decreases and the production cost increases due to the collapse of external burrs and the shutdown of the production line in the production process of welded pipes

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