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2. 发明公开

KR1020020063796A 플라즈마 아크 토치 有权
标题翻译：用于等离子弧焊的气体流
公开(公告)号：KR1020020063796A
公开(公告)日：2002-08-05
申请号：KR1020010075303
申请日：2001-11-30
申请人： 더 에삽 그룹 인코포레이티드
发明人： 세버런스웨인스텐리주니어
IPC分类号： B23K10/00
CPC分类号： H05H1/34 , H05H2001/3436 , H05H2001/3442 , H05H2001/3478
摘要： PURPOSE: A plasma arc torch and method are provided for directing a flow of gas substantially the length of an electrode before splitting the gas into a primary flow and a secondary flow. CONSTITUTION: The plasma arc torch(10) comprises an electrode(40) including an upper tubular member(23) defining an internal bore therethrough and a metallic holder(41) having a front end and a rear end along a longitudinal axis, the front end having a front face defining a front cavity having at least an emissive element positioned therein, the rear end defining a central passageway(25) in fluid communication with the internal bore(24) for directing gas from the rear end to the front end of the holder, the holder further defining a plurality of side openings positioned proximate the front end of the holder that are in fluid communication with the central passageway; a nozzle positioned proximate the front end of the holder and defining a nozzle chamber therebetween, the nozzle defining a central bore for discharging a primary flow of gas from the nozzle chamber toward a workpiece located adjacent the nozzle; an electrical supply for creating an arc extending from the emissive element of the electrode through the central bore and to the workpiece; and a gas supply line(70) through which all gas used by the torch is supplied, the gas supply line directing all of the gas to the central passageway of the electrode, wherein all of the gas is directed to the nozzle chamber from the central passageway through the side openings defined by the holder.
摘要翻译：目的：提供等离子弧焊炬和方法，用于在将气体分解成主流和次流之前引导基本上电极长度的气体流。等离子弧焊炬（10）包括电极（40），其包括限定穿过其中的内部孔的上部管状构件（23）和具有沿纵向轴线的前端和后端的金属保持器（41），前部端部具有限定具有定位在其中的至少一个发射元件的前腔的前表面，所述后端限定与内孔（24）流体连通的中心通道（25），用于将气体从后端引导到前端保持器，保持器还限定靠近保持器的前端定位的多个侧开口，其与中心通道流体连通; 喷嘴，其位于所述保持器的前端附近并且在其间限定喷嘴腔，所述喷嘴限定用于将主要气流从所述喷嘴室排放到位于所述喷嘴附近的工件的中心孔; 用于产生从电极的发射元件穿过中心孔延伸到工件的电弧; 以及气体供给管线（70），通过该气体供给管线（70），所述气体供给管线通过所述气体供给管线被供应，所述气体供给管线将所有气体引导到所述电极的中心通道，其中所有气体从所述中心通过由支架限定的侧开口的通道。

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