首页>
外国专利>
Arc-welding torch, wear detection system for power supply portion of contact tip, and wear detection method for contact tip
Arc-welding torch, wear detection system for power supply portion of contact tip, and wear detection method for contact tip
展开▼
机译:电弧焊炬,触头电源部分的磨损检测系统以及触头磨损的检测方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
A welding torch includes: a contact tip having, on a distal-end inner circumferential surface thereof, a power supply portion that contacts a fed welding wire to supply current; and a wire guide that is provided having a predetermined clearance within the contact tip and guides the fed welding wire, and wherein the arc-welding torch is configured such that axes of the contact tip and the wire guide are relatively changed so as to cause the welding wire fed while guided by the wire guide to contact the power supply portion of the contact tip. The power supply portion of the contact tip is formed to have an axial length with which a welding current can be maintained at least a predetermined lower limit current despite a shift of a power supply point in accordance with wear of the power supply portion, more specifically, formed to have a length of 1 to 4 mm.
展开▼