Apparatus for the treatment of metallic workpieces

Metallurgical apparatus – Having means for contacting a solid metalliferous material... – With heating means – e.g. – flame contact

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266 48, 266127, 266259, 219439, 219 72, C21D 106, C21D 134, C21D 1613

Patent

active

059321709

ABSTRACT:
Metal workpieces are subjected to laser treatment in a liquefied gas, by passing the laser beam through a layer of liquid nitrogen in direct contact with the metal surface to be treated, thereby creating an amorphous state.

REFERENCES:
patent: 4398966 (1983-08-01), Kelly et al.
patent: 4539461 (1985-09-01), Benedict et al.
patent: 4755237 (1988-07-01), Lemelson
patent: 5209791 (1993-05-01), Masumoto et al.
patent: 5747771 (1998-05-01), O'Neill

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