公开(公告)号：US4300034A

公开(公告)日：1981-11-10

申请号：US77210

申请日：1979-09-20

申请人： Urban A. Schneider ,  Robert E. Monley ,  Raymond H. Glatthorn ,  Robert L. Nelson

发明人： Urban A. Schneider ,  Robert E. Monley ,  Raymond H. Glatthorn ,  Robert L. Nelson

IPC分类号： B23K9/29 ,  B23K9/16

CPC分类号： B23K9/296

摘要： A gas tungsten arc welding torch having an elongated gas nozzle (18) with an oblong cross section designed for deep groove, narrow gap welding. The nozzle is rotatably coupled to and communicates with a gas port within the main torch body (16) and defines a gas passage along the length of the welding electrode (10), which extends through the longitudinal axis of the nozzle. The nozzle (18) includes a detachable end section (42) which captures and supports a replaceable gas lens (30) disposed within the gas passage of the nozzle within 7/8 to 1 inch from the nozzle orifice (40), and traverse to the direction of gas flow. The electrode (10) is formed from a solid tungsten rod center (12) and a concentric outer sleeve (14) substantially lower in electrical resistivity than the tungsten rod, which is adhesively and cohesively bonded to the tungsten. The outer sleeve extends from the point of electrical connection (32) within the main torch body (16) to a point on the tungsten electrode downstream of the gas lens. The nozzle is sealably mounted (38) to the main torch body and readily detachable for easy replacement.

摘要翻译： 一种具有细长气体喷嘴（18）的气体钨弧焊枪，其具有设计用于深沟槽，窄间隙焊接的长方形横截面。 喷嘴可旋转地联接到主炬本体（16）内的气体端口并且与主炬本体（16）内的气体端口连通，并且限定沿着焊接电极（10）的长度的气体通道，其延伸穿过喷嘴的纵向轴线。 喷嘴（18）包括一个可拆卸的端部（42），该可拆卸的端部（42）捕捉和支撑设置在喷嘴的气体通道内的可更换的气体透镜（30），该喷嘴在喷嘴孔（40）的7/8至1英寸内，并且横越 气流方向。 电极（10）由固体钨棒中心（12）和同心外套（14）形成，其电阻率基本上低于与钨棒粘结和内聚到钨上的钨棒。 外套筒从主火炬主体（16）内的电连接点（32）延伸到气体透镜下游的钨电极上的点。 喷嘴可密封地安装（38）到主火炬主体，并且易于拆卸以便于更换。