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Title
Verfahren zur Oberflaechenverguetung innerer Oberflaechen von Hohlkoerpern und Vorrichtung zur Durchfuehrung des Verfahrens
Date Issued
2003
Author(s)
Jung, T.
Hellmich, A.
Patent No
1997-19726443
Abstract
Treatment of the inner surface of a hollow component (40) with at least one opening using glow discharge of excited plasma from hollow cathode serving as an excitation source. Resultant excited plasma particles used for surface treatment are transported to the inner surface of the component in a gas stream flowing through the component. The hollow component is located in a vacuum vessel (30), and is separate from the hollow cathode. The apparatus (in addition to the items already mentioned) includes gas supply (10, 21), an anode and a current supply. The vacuum vessel houses the hollow cathode and at least a part of the hollow component undergoing inner surface treatment. USE - For coating and hardening of inner surfaces of hollow components.
Language
de
Patenprio
DE 1997-19726443 A: 19970623