Electrodes for a plasma cutting torch, including their arrangement, a plasma cutting torch including the electrodes, and a method for plasma cutting.

By using tungsten-zirconium or hafnium oxide alloy emitter inserts and an optimized structural design, the problems of short service life and poor cutting quality of plasma cutting torch electrodes in nitrogen-containing gas have been solved, enabling efficient cutting of materials such as high alloy steel.

CN116195370BActive Publication Date: 2026-07-03KJELLERG-STIFTUNG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
KJELLERG-STIFTUNG
Filing Date
2021-07-29
Publication Date
2026-07-03

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Abstract

An electrode for a plasma cutting torch, comprising an electrode holder and a firing insert connected to each other by force, shape and / or material fit, characterized in that the firing insert is made of an alloy consisting of at least tungsten and at least one of the following elements or compounds: zirconium and / or hafnium and / or zirconium oxide and / or hafnium oxide; an arrangement including the electrode; a plasma cutting torch including the electrode; and a method for plasma cutting.
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