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公开(公告)号：EP1712021A2
公开(公告)日：2006-10-18
申请号：EP04782845.4
申请日：2004-09-01
IPC分类号： H04B11/00
摘要： A floating liner for a container of welding wire which floating liner includes a tube having two ends and a passageway extending between the two ends. The floating liner is unsupported between the top of the container and the retaining ring. The floating liner is designed to provide structural support to the wire and added stiffness or rigidity to the wire to inhibit buckling of the wire, knot formation in the wire that can form between the retaining ring and the top of the container. The floating liner has a weight profile that causes one end of the tube to at least partially float above the top surface of a layer of welding wire or retaining ring in the container as the welding wire is paid out of the container.
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公开(公告)号：EP2498943A1
公开(公告)日：2012-09-19
申请号：EP10793036.4
申请日：2010-11-11
申请人： Lincoln Global, Inc.
摘要： A method of pulse arc welding the root pass of a butt weld joint (10, 12) wherein the facing edges (14, 16) are tapered to form an included angle (9). The facing edges (14, 16) are positioned in close proximity to each other to define a channel (24). An electrode (32) is moved within the channel (24) and current is applied that passes between the electrode (32) and the facing edges (14, 16) to form a complete root pass between the facing edges (14, 16) from a single side of the joint, said current having a waveform (40) comprising a constant background current level (42) and fixed frequency current pulses (44).
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