Plasma spraying device
AssigneeOerlikon Metco AG
InventorSilvano Keller
Life of this patent
Estimating the term…
Abstract
A plasma spraying device includes a torch head which has a plasma channel that extends between a cathode and an anode. The plasma channel is bounded by a plurality of neutrodes which are electrically insulated from each other. A gap extends between the frontmost neutrode and the anode, which gap is divided into at least two sections. There is a radial distance and an axial distance between the two sections. An insulating disk is arranged in each of the two sections.
Claims20
A plasma spraying device with a plasma channel extending between at least one cathode and an anode and a plurality of neutrodes bounding the plasma channel, wherein the neutrodes are electrically insulated against each other and wherein a gap extends between the frontmost neutrode and the anode, with an insulating disc arranged in the gap, characterised in that the gap between the frontmost neutrode and the anode comprises at least two sections, wherein a radial and/or axial distance exists between the at least two sections and wherein an insulating disc is arranged in each of the at least two sections.
An anode for a plasma spraying device, which is provided with a plasma channel extending between at least one cathode and an anode and a plurality of neutrodes bounding the plasma channel, wherein the neutrodes are electrically insulated against each other, and wherein a gap having at least two sections extends between the frontmost neutrode and the anode, and wherein an insulating disc is arranged in each of the at least two sections, characterised in that the anode is provided with a ring-shaped elevation or a ring-shaped indentation on its back facing the frontmost neutrode for forming the gap having at least two sections.
A neutrode for a plasma spraying device, which is provided with a plasma channel extending between at least one cathode and an anode, and a neutrode adjacent to the anode which forms part of a neutrode arrangement, wherein a gap comprising at least two sections extends between this frontmost neutrode and the anode, and wherein an insulating disc is arranged in each of the at least two sections, characterised in that the neutrode is provided with a ring-shaped projection or a ring-shaped indentation on the front facing the anode for forming the gap comprising at least two sections.
Dependencies are inferred from the claim text.