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公开(公告)号：USD582950S1
公开(公告)日：2008-12-16
申请号：US29290752
申请日：2008-01-10
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公开(公告)号：USD506764S1
公开(公告)日：2005-06-28
申请号：US29179394
申请日：2003-04-10
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公开(公告)号：US06268583B1
公开(公告)日：2001-07-31
申请号：US09572935
申请日：2000-05-18
IPC分类号： B23K1000
CPC分类号： B23K10/00 , H05H1/34 , H05H1/3405 , H05H2001/3442 , H05H2001/3457
摘要： An object is to provide a plasma torch having a function to achieve fully satisfactory cooling of the nozzle and shield cap. A plasma torch 1 comprises a nozzle 17 positioned at the front end portion of the torch 1 so as to cover an electrode 13, with a plasma gas passage 37 interposed therebetween. A shield cap 21 is mounted at the front end of the nozzle 17, and these components 13, 17 and 21 are accommodated in a retainer cap 23. Assist gas passages 45, 55 are formed in the wall of the retainer cap 23, and feed assist gas to the vicinity of the plasma arc 81. A space enclosed by the retainer cap 23, nozzle 17 and shield cap 21 is a cooling water passage 63. The retainer cap 23, nozzle 17 and shield cap 21 faces the cooling water passage 63, and hence directly and powerfully water-cooled.
摘要翻译： 目的是提供一种等离子体焰炬，其具有完全令人满意地冷却喷嘴和屏蔽帽的功能。 等离子体焰炬1包括位于割炬1的前端部分的喷嘴17，以覆盖电极13，其中插入有等离子体气体通道37。 屏蔽帽21安装在喷嘴17的前端，这些部件13,17和21被容纳在保持器盖23中。辅助气体通道45,55形成在保持盖23的壁中，并且进给 辅助气体到等离子弧81附近。由保持盖23，喷嘴17和屏蔽盖21包围的空间是冷却水通道63.保持盖23，喷嘴17和屏蔽盖21面向冷却水通道63 ，因此直接有力地水冷。
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公开(公告)号：US20100155373A1
公开(公告)日：2010-06-24
申请号：US12600616
申请日：2008-06-27
IPC分类号： B23K10/00
CPC分类号： H05H1/34 , H05H2001/3426 , H05H2001/3457
摘要： A plasma torch includes a torch main unit and a nozzle. The torch main unit has a nozzle seat member on which the nozzle is mounted. The nozzle is arranged to move toward or away from the nozzle seat member in a direction substantially parallel to a center axis of the nozzle when the nozzle is mounted on or removed from the nozzle seat member. The nozzle has an electroconductive surface facing the nozzle seat member. The torch main unit has an elastic electric contact portion contacting with the electroconductive surface of the nozzle to form an electroconductive path for a pilot arc to the nozzle. The electroconductive surface of the nozzle presses the electric contact portion in the direction substantially parallel to the center axis when the nozzle is moved toward the nozzle seat member to mount the nozzle on the nozzle seat member.
摘要翻译： 等离子体焰炬包括火炬主单元和喷嘴。 割炬主体具有安装喷嘴的喷嘴座构件。 喷嘴被布置成当喷嘴安装在喷嘴座构件上或从喷嘴座构件移除时沿大致平行于喷嘴的中心轴线的方向朝向或远离喷嘴座构件移动。 喷嘴具有面向喷嘴座构件的导电表面。 手电筒主体具有与喷嘴的导电表面接触的弹性电接触部分，以形成用于引导电弧到喷嘴的导电路径。 当喷嘴朝向喷嘴座构件移动以将喷嘴安装在喷嘴座构件上时，喷嘴的导电表面在基本上平行于中心轴线的方向上按压电接触部分。
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公开(公告)号：USD582951S1
公开(公告)日：2008-12-16
申请号：US29290753
申请日：2008-01-10
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公开(公告)号：USD500064S1
公开(公告)日：2004-12-21
申请号：US29192752
申请日：2003-10-30
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公开(公告)号：USD582449S1
公开(公告)日：2008-12-09
申请号：US29290751
申请日：2008-01-10
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公开(公告)号：US06583378B1
公开(公告)日：2003-06-24
申请号：US09717140
申请日：2000-11-22
IPC分类号： B23K1000
CPC分类号： H05H1/34 , H05H2001/3442
摘要： The invention prolongs the electrode lifetime of plasma machining electrodes having a hafnium or zirconium insert. A hafnium or zirconium insert 21 inserted into the tip of a copper holder 22 protrudes from the tip of the copper holder 22. The protrusion length L is not larger than the diameter D of the insert, preferably not larger than 0.5 mm. The protruding portion 21a of the insert has a rounded section without sharp angles. The rear surface 21 of the insert is exposed to the flow of the cooling water inside the electrode. At least during the generation of the pilot arc, a plasma gas containing at least 5 mol % nitrogen is used.
摘要翻译： 本发明延长了具有铪或锆插入物的等离子体加工电极的电极寿命。 插入铜保持器22的尖端的铪或锆插入件21从铜保持器22的前端突出。突出长度L不大于插入件的直径D，优选不大于0.5mm。 插入件的突出部分21a具有没有锐角的圆形部分。 插入件的后表面21暴露于电极内的冷却水的流动。 至少在导电弧的产生期间，使用含有至少5mol％氮的等离子体气体。
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公开(公告)号：USD446530S1
公开(公告)日：2001-08-14
申请号：US29128162
申请日：2000-08-21
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公开(公告)号：US08420975B2
公开(公告)日：2013-04-16
申请号：US12600616
申请日：2008-06-27
IPC分类号： B23K10/00
CPC分类号： H05H1/34 , H05H2001/3426 , H05H2001/3457
摘要： A plasma torch includes a torch main unit and a nozzle. The torch main unit has a nozzle seat member on which the nozzle is mounted. The nozzle is arranged to move toward or away from the nozzle seat member in a direction substantially parallel to a center axis of the nozzle when the nozzle is mounted on or removed from the nozzle seat member. The nozzle has an electroconductive surface facing the nozzle seat member. The torch main unit has an elastic electric contact portion contacting with the electroconductive surface of the nozzle to form an electroconductive path for a pilot arc to the nozzle. The electroconductive surface of the nozzle presses the electric contact portion in the direction substantially parallel to the center axis when the nozzle is moved toward the nozzle seat member to mount the nozzle on the nozzle seat member.
摘要翻译： 等离子体焰炬包括火炬主单元和喷嘴。 割炬主体具有安装喷嘴的喷嘴座构件。 喷嘴被布置成当喷嘴安装在喷嘴座构件上或从喷嘴座构件移除时沿大致平行于喷嘴的中心轴线的方向朝向或远离喷嘴座构件移动。 喷嘴具有面向喷嘴座构件的导电表面。 手电筒主体具有与喷嘴的导电表面接触的弹性电接触部分，以形成用于引导电弧到喷嘴的导电路径。 当喷嘴朝向喷嘴座构件移动以将喷嘴安装在喷嘴座构件上时，喷嘴的导电表面在基本上平行于中心轴线的方向上按压电接触部分。
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