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公开(公告)号：EP3314989A1
公开(公告)日：2018-05-02
申请号：EP16816883.9
申请日：2016-06-27
发明人： BOULOS, Maher I. , JUREWICZ, Jerzy W. , DIGNARD, Nicolas , AUGER, Alexandre , THELLEND, Sébastien
IPC分类号： H05H1/26
摘要： An induction plasma torch comprises a tubular torch body, a tubular insert, a plasma confinement tube and an annular channel. The tubular torch body has upstream and downstream sections defining respective inner surfaces. The tubular insert is mounted to the inner surface of the downstream section of the tubular torch body. The plasma confinement tube is disposed in the tubular torch body, coaxial therewith. The plasma confinement tube has a tubular wall having a thickness tapering off in an axial direction of plasma flow. The annular channel is defined between, on one hand, the inner surface of the upstream section of the tubular torch body and an inner surface of the insert and, on the other hand, an outer surface of the tubular wall of the plasma confinement tube. The cooling channel carries a fluid for cooling the plasma confinement tube.
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3.发明授权
公开(公告)号：EP3314989B1
公开(公告)日：2020-05-27
申请号：EP16816883.9
申请日：2016-06-27
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4.发明公开
公开(公告)号：EP4309775A3
公开(公告)日：2024-04-17
申请号：EP23215348.6
申请日：2015-03-09
IPC分类号： B01J2/02
摘要： The present disclosure relates to a process and an apparatus for producing powder particles by atomization of a feed material in the form of an elongated member such as a wire, a rod or a filled tube. The feed material is introduced in a plasma torch. A forward portion of the feed material is moved from the plasma torch into an atomization nozzle of the plasma torch. A forward end of the feed material is surface melted by exposure to one or more plasma jets formed in the atomization nozzle. The one or more plasma jets being includes an annular plasma jet, a plurality of converging plasma jets, or a combination of an annular plasma jet with a plurality of converging plasma jets. Powder particles obtained using the process and apparatus are also described.
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5.发明公开
公开(公告)号：EP4309775A2
公开(公告)日：2024-01-24
申请号：EP23215348.6
申请日：2015-03-09
IPC分类号： B01J2/02
摘要： The present disclosure relates to a process and an apparatus for producing powder particles by atomization of a feed material in the form of an elongated member such as a wire, a rod or a filled tube. The feed material is introduced in a plasma torch. A forward portion of the feed material is moved from the plasma torch into an atomization nozzle of the plasma torch. A forward end of the feed material is surface melted by exposure to one or more plasma jets formed in the atomization nozzle. The one or more plasma jets being includes an annular plasma jet, a plurality of converging plasma jets, or a combination of an annular plasma jet with a plurality of converging plasma jets. Powder particles obtained using the process and apparatus are also described.
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6.发明公开
公开(公告)号：EP3730208A1
公开(公告)日：2020-10-28
申请号：EP20179564.8
申请日：2015-03-09
IPC分类号： B01J2/02
摘要： The present disclosure relates to a process and an apparatus for producing powder particles by atomization of a feed material in the form of an elongated member such as a wire, a rod or a filled tube. The feed material is introduced in a plasma torch. A forward portion of the feed material is moved from the plasma torch into an atomization nozzle of the plasma torch. A forward end of the feed material is surface melted by exposure to one or more plasma jets formed in the atomization nozzle. The one or more plasma jets being includes an annular plasma jet, a plurality of converging plasma jets, or a combination of an annular plasma jet with a plurality of converging plasma jets. Powder particles obtained using the process and apparatus are also described.
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公开(公告)号：EP2671430B1
公开(公告)日：2018-05-16
申请号：EP12742194.9
申请日：2012-02-02
发明人： BOULOS, Maher, I. , DIGNARD, Nicolas , AUGER, Alexandre , JUREWICZ, Jerzy , THELLEND, Sébastien
摘要： A plasma confinement tube for use in an induction plasma torch is disclosed. The plasma confinement tube defines a geometrical axis and an outer surface. The plasma confinement tube includes a capacitive shield comprising a film of conductive material applied to the outer surface of the plasma confinement tube and segmented into axial strips. The axial strips are interconnected at one end. Axial grooves are machined in the outer surface of the plasma confinement tube, and interposed between the axial strips. The conductive film may have a thickness smaller than a skin-depth calculated for a frequency of operation of the induction plasma torch and an electrical conductivity of the conductive material of the film.
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8.发明公开PROCESS AND APPARATUS FOR PRODUCING POWDER PARTICLES BY ATOMIZATION OF A FEED MATERIAL IN THE FORM OF AN ELONGATED MEMBER 审中-公开方法和设备粉末颗粒的生产由申请材料的细长元件的形式喷涂
公开(公告)号：EP3116636A1
公开(公告)日：2017-01-18
申请号：EP15762350.5
申请日：2015-03-09
IPC分类号： B01J2/02
摘要： The present disclosure relates to a, process and an apparatus for producing powder particles by atomization of a feed material in the form of an elongated member such as a wire, a rod or a filled tube. The feed material is introduced in a plasma torch. A forward portion of the feed material is moved from the plasma torch into an atomization nozzle of the plasma torch. A forward end of the feed material is surface melted by exposure to one or more plasma jets formed in the atomization nozzle. The one or more plasma jets being includes an annular plasma jet, a plurality of converging plasma jets, or a combination of an annular plasma jet with a plurality of converging plasma jets. Powder particles obtained using the process and apparatus are also described.
摘要翻译： 本发明涉及一种方法和装置，用于在细长构件的形式通过进料的雾化生产的粉末颗粒：如金属丝，杆或填充的管。 供给材料在等离子体炬被引入。 供给材料的前部是从该等离子体炬移动到在所述等离子体焰炬的雾化嘴。 进料材料的前端表面通过暴露于在雾化喷嘴形成的一个或多个等离子体射流中熔化。 所述一个或多个等离子体射流的存在包括环形设计等离子体射流，会聚等离子体射流的复数，或环形设计等离子体射流与会聚等离子体射流的多个组合。 粉末颗粒在使用过程中获得，并且因此描述的装置。
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公开(公告)号：EP2671430A1
公开(公告)日：2013-12-11
申请号：EP12742194.9
申请日：2012-02-02
发明人： BOULOS, Maher, I. , DIGNARD, Nicolas , AUGER, Alexandre , JUREWICZ, Jerzy , THELLEND, Sébastien
摘要： An induction plasma torch comprises a tubular torch body, a plasma confinement tube disposed in the tubular torch body coaxial therewith, a gas distributor head disposed at one end of the plasma confinement tube and structured to supply at least one gaseous substance into the plasma confinement tube; an inductive coupling member for applying energy to the gaseous substance to produce and sustain plasma in the plasma confinement tube, and a capacitive shield including a film of conductive material applied to the outer surface of the plasma confinement tube or the inner surface of the tubular torch body. The film of conductive material is segmented into axial strips interconnected at one end. The film of conductive material has a thickness smaller than a skin-depth calculated for a frequency of a current supplied to the inductive coupling member and an electrical conductivity of the conductive material of the film.
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