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公开(公告)号：US12101868B2
公开(公告)日：2024-09-24
申请号：US17948618
申请日：2022-09-20
发明人： Hao Sun , Mingzhe Rong , Yi Wu , Yunshun Guo , Hu Long
CPC分类号： H05H1/42 , H05H1/28 , H05H1/34 , H05H2245/17
摘要： The present disclosure discloses a thermal plasma treatment method for sulfur hexafluoride (SF6) degradation. In the thermal plasma treatment method for SF6 degradation, Ar is input into a thermal plasma generator as a carrier gas; annular electrodes are electrically connected to a direct current power supply to generate an arc plasma region in the presence of the carrier gas Ar; to-be-reacted SF6 and to-be-reacted H2 in a predetermined ratio are input into the arc plasma region to generate hydrogen radicals as well as fluorine radicals, and the hydrogen radicals and the fluorine radicals are bonded with each other to generate HF to inhibit the self-recovery reaction of SF6; and final products include HF and elemental S.
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公开(公告)号：US12017295B2
公开(公告)日：2024-06-25
申请号：US17665701
申请日：2022-02-07
申请人： The ESAB Group Inc.
摘要： A torch having first and second housing portions may contain multiple adjustment features such as an adjustable length, an adjustable pivot angle of the second housing portion, and an adjustable rotational angle of the second housing portion. The second housing portion may be both slidably and rotationally coupled to the first housing portion. The second housing portion may be configured to slide along a longitudinal axis of the torch to adjust a length of the torch. The second housing portion may be further configured to rotate about the longitudinal axis of the torch to adjust the rotational orientation of the second housing portion with respect to the first housing portion. At least a section of the second housing portion may be configured to pivot about a transverse axis with respect to the first housing portion, the transverse axis being transverse to the longitudinal axis of the torch.
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公开(公告)号：US20240188207A1
公开(公告)日：2024-06-06
申请号：US18555003
申请日：2022-04-13
发明人： Ate WIEKAMP
CPC分类号： H05H1/3423 , H05H1/44
摘要： A plasma torch assembly comprises a plurality of plasma torch apertures. Each of these plasma torch apertures is adapted to receive a plasma torch. The plasma torch assembly also comprises a working position for operation of the plasma torch—the working position is pressure sealed for hyperbaric operation of the plasma torch. The plasma torch assembly also has means to move each of the plasma torch apertures to the working position. In this way, plasma torches can be swapped in and out of the working position. A method of operating a plasma torch device comprising such a plasma torch assembly is also described.
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公开(公告)号：US11938564B2
公开(公告)日：2024-03-26
申请号：US17229296
申请日：2021-04-13
IPC分类号： B23K26/142 , B23K26/14 , H05H1/34 , H05H1/40
CPC分类号： B23K26/142 , B23K26/1462 , H05H1/341 , H05H1/40
摘要： This specification describes systems, methods, and architectures related to generating a plasma shield for laser operations. An example system for generating a plasma shield includes a laser head for directing a laser beam towards a target area on a workpiece. The path of the laser beam from the laser head to the target area on the workpiece is substantially surrounded by a plasma shield, which may form a gas-impermeable barrier. The plasma shield is configured to prevent the ingress of atmospheric or environmental gases, for example oxygen, into an area which would allow the gas to be in contact with the area of the workpiece being interacted with by a laser beam. The shape or location of the plasma shield may be controlled or altered using a magnetic field.
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公开(公告)号：US11883910B2
公开(公告)日：2024-01-30
申请号：US16700682
申请日：2019-12-02
发明人： James M. Walker
CPC分类号： B23K9/0956 , B23K9/095 , B23K10/006 , G09B19/24 , H05H1/34 , H05H1/3494
摘要： A retrofit module includes at least one of a current sensing component that has a first circuit or a voltage sensing component that has a second circuit. The current sensing component and the voltage sensing component may be disposed in a torch head of a welding or plasma cutting torch. The current sensing component is configured to measure a welding or plasma cutting current of the torch head, and the voltage sensing component is configured to measure a welding or plasma cutting voltage of the torch head.
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公开(公告)号：US20230415117A1
公开(公告)日：2023-12-28
申请号：US18247835
申请日：2021-10-08
申请人： MATERIA NOVA ASBL
发明人： Fabrizio MASERI , Thomas GODFROID
CPC分类号： B01J19/08 , C01B3/24 , H05H1/2406 , H05H1/34 , H05H1/30 , C01B2203/0861 , B01J2219/0898 , B01J2219/0869 , C01B2203/1241 , B01J2219/00322
摘要： The current invention relates to a plasma reactor comprising: a reactor space, an axial gas inlet suitable for fluid flow in an axial direction, said axial inlet comprising radial injection slits for discharging a jet of gaseous mixture into said reactor space, a downstream gas expansion disc, which extends radially from the coaxial inlet and is located downstream of said radial injection slits with respect to said axial direction, plasma generating means suitable for ionizing a gaseous medium within said reactor space, and a cylindrical reactor container, coaxial with said gas inlet, encompassing said reactor space, said reactor container comprising outlet means. The invention further relates to a multistage reactor. The invention also relates to the use of said plasma reactor.
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7.发明公开公开(公告)号：US20230363077A1
公开(公告)日：2023-11-09
申请号：US18026188
申请日：2021-09-09
申请人： Thermacut, k.s.
发明人： Zdenek Lapcik , Tomas Kusak
IPC分类号： H05H1/34
CPC分类号： H05H1/3489 , H05H1/3473 , H05H1/3421
摘要： Assembly for a plasma arc torch comprising:—an electrical contact element (6), having a proximal contact surface (25) for contact with a power supply component (8) and a cavity with inner side walls for contact with side walls of a proximal end portion (14) of an electrode (3), and—a spring (4) for pushing the electrode (3) away from the electrical contact element (6), and—an insulation element (5) arranged on the electrical contact element (6) and adapted to prevent transfer of electrical current form the electrical contact element (6) to the spring (4).
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公开(公告)号：US11770891B2
公开(公告)日：2023-09-26
申请号：US16403846
申请日：2019-05-06
申请人： Hypertherm, Inc.
发明人： Yu Zhang , Zheng Duan , Mahyar Esmaili , Mike Kornprobst , Brett Hansen , Garrett Quillia
CPC分类号： H05H1/34 , B23K10/02 , H05H1/3457 , H05H1/3468 , H05H1/3489
摘要： A cartridge for an air-cooled plasma arc torch is provided. The cartridge includes a swirl ring having a molded thermoplastic elongated body with a distal end, a proximal end, and a hollow portion configured to receive an electrode. The swirl ring also has a plurality of gas flow openings defined by the distal end of the elongated body and configured to impart a swirling motion to a plasma gas flow for the plasma arc torch. The swirl ring further includes a nozzle retention feature on a surface of the elongated body at the distal end for retaining a nozzle to the elongated body. The cartridge further includes a cap affixed to the proximal end of the elongated body of the swirl ring for substantially closing the proximal end of the elongated body.
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公开(公告)号：US20230269859A1
公开(公告)日：2023-08-24
申请号：US18005408
申请日：2021-07-13
CPC分类号： H05H1/36 , H05H1/3423 , H05H1/3494 , H05H2245/32
摘要： The invention relates to an electrode arrangement for a plasma jet device comprising a first and a second printed circuit board each having an exposed surface of a circuit path serving as electrode and facing the other printed circuit board, a spacer arranged between the first and second circuit board and a plasma cell arranged between the first and second printed circuit board and the spacer wherein the plasma cell has a gas inlet and a plasma outlet. The invention further relates to a plasma head comprising said electrode arrangement.
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公开(公告)号：US11701734B2
公开(公告)日：2023-07-18
申请号：US16521626
申请日：2019-07-25
申请人： The ESAB Group Inc.
发明人： Andrew Raymond
CPC分类号： B23K10/006 , F16K1/52 , H05H1/34 , H05H1/36
摘要： Apparatus and methods associated with operating a plasma torch are disclosed. According to some implementations, the apparatus and methods involve the delivery of a process gas to a shuttle valve at first and second pressures for the purpose of altering an axial position of a valve element located inside the shuttle valve. The shuttle valve is configured such that at different axial positions of the valve element the flow of process gas into the plasma torch is altered.
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