Method and apparatus for surface treating an axially symmetric s

Static molds – Container-type molding device – Plural article forming mold – or molds with community feature

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21912152, 2191214, 21912148, B23K 900

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052256596

ABSTRACT:
A surface treating apparatus which comprises a hollow cylindrical electrode and a counter electrode provided within the hollow cylindrical electrode, and a power supply for applying a potential between the electrode and the counter electrode to cause an atmospheric pressure plasma in the presence of a selected gas to generate within the cylindrical electrode is described. A method is also described, wherein a material to be treated is placed between the electrodes and a potential is applied therebetween to generate the plasma to effect the surface treatment of the material. The method and apparatus are very effective for surface treatment of axially symmetric substrates in the form of bars, tubes or fibers.

REFERENCES:
patent: 4430547 (1984-02-01), Yoneda et al.
patent: 4803332 (1989-02-01), Koyama et al.
patent: 4877938 (1989-10-01), Rau et al.
patent: 5099100 (1992-03-01), Bersin et al.
Patent Abstracts of Japan, vol. 11, No. 398 (C-466) (2345), Dec. 25, 1987, & JP-A-62-158-885, Jul. 14, 1987, A. Iwasaki, et al., "Gas Etching Method".
7th International Conference Ion & Plasma Assisted Techniques (Proceedings), May, 1989, pp. 70-73, K. J. A. Mawella, et al., "The Effect of Co-Deposition of Metals on the Microstructure and Properties of Sputtered Alloy Coatings".

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