公开(公告)号：US4313046A

公开(公告)日：1982-01-26

申请号：US128701

申请日：1980-03-10

申请人： Larry O. Henry ,  Cecil V. Livesay

发明人： Larry O. Henry ,  Cecil V. Livesay

IPC分类号： B23K9/28 ,  B23K9/00

CPC分类号： B23K9/285 ,  Y10T29/49002

摘要： A water cooled welding gun (10) includes an elongated current carrying inner tube (40) having a central opening (42) through which a consumable electrode and shielding gas may pass. The inner tube is provided with cooling passageways (50). A gas shielding nozzle (35) is connected to a gun tube cover (55) and is in thermal contact with the inner tube (40) through two layers of thermally conductive but electrically insulative materials (100, 105). The first layer (100) is preferably a rigid ceramic material, such as Al.sub.2 O.sub.3, and the second layer (105) is preferably a thermally conducting but electrically insulating material, such as epoxy, which is pliable when initially applied. The second material (105) fills the gaps between the outer surface of the first material and the inside surface of the gun tube cover (55) to provide a direct thermal path for the heat transfer from the nozzle (35) through the cover tube (30) into the cooled inner tube (40) while maintaining electrical isolation therefrom.

摘要翻译： 水冷焊枪（10）包括具有中心开口（42）的细长电流承载内管（40），可消耗电极和保护气体可通过该中心开口穿过。 内管设有冷却通道（50）。 气体屏蔽喷嘴（35）连接到喷枪管盖（55），并通过两层导热但电绝缘材料（100,105）与内管（40）热接触。 第一层（100）优选是诸如Al 2 O 3的刚性陶瓷材料，并且第二层（105）优选是导热但电绝缘的材料，例如环氧树脂，其在最初施加时是柔韧的。 第二材料（105）填充第一材料的外表面和枪管盖（55）的内表面之间的间隙，以提供用于从喷嘴（35）通过盖管（...）传热的直接热路径 30）进入冷却的内管（40），同时保持与其的电隔离。