B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
B23K 10/00 (2006.01) H05H 1/34 (2006.01)
Patent
CA 2334931
Process and unit for the arc working, particularly plasma cutting, of a workpiece, in which a plasma torch is supplied with an electric current and with a gas mixture containing oxygen and nitrogen, and a plasma jet obtained by the ionization of the gas mixture by the electric current is delivered by means of the plasma torch. The concentration of nitrogen and oxygen in the gas mixture is less than 50%. The gas mixture is obtained by adding a defined amount of nitrogen or, depending on the case, oxygen immediately before the gas mixture is introduced into the torch. The amount of nitrogen or oxygen is defined according to the thickness of the workpiece, to the grade of the constituent material of the workpiece, to the desired work rate and/or to the intensity of the electric current.
Augeraud Regis
Delzenne Michel
Suzon Serge
L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Proced Es Geo
La Soudure Autogene Francaise
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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