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专利申请号:971 0 71 68 公开号:1 2 1 5 643申请人:华东石油地质局第六普查勘探大队本发明介绍了一种管材摩擦焊及焊区热处理的方法和装置,属于机械领域,它在管材普通摩擦焊的顶锻形变中,采用电机能耗制动方法控制其形变量,并直接利用摩擦焊热在焊接管内外壁同时对焊区进行
Patent application number: 971 071 68 Publication number: 1 2 1 5 643 Applicant: Sixth Census Exploration Brigade of East China Petroleum Geology Bureau The present invention introduces a method and a device for pipe friction welding and weld zone heat treatment, belonging to the field of machinery. It is in the pipe friction welding of the top forging changes, the use of motor braking method to control the amount of deformation, and the direct use of friction welding heat in the welded pipe wall at the same time on the welding area