Method for heat treatment

Details Method for heat treatment Method for heat treatment

2011-06-07

2011-06-07

Silverman, Stanley (Department: 1736)

Metal treatment

Process of modifying or maintaining internal physical...

Heating or cooling of solid metal

C148S206000, C148S225000, C148S235000, C148S712000, C148S713000, C432S176000, C432S196000, C432S199000

Reexamination Certificate

active

07955450

ABSTRACT:
The invention relates to a method for the heat treatment of workpieces in a heat treatment furnace, wherein the treatment atmosphere in the heat treatment furnace is circulated. According to the invention, a propellant is injected into the heat treatment furnace in such a manner that the treatment atmosphere is essentially circulated by the injected propellant.

REFERENCES:
patent: 4191525 (1980-03-01), Sallman
patent: 4354827 (1982-10-01), Kissel
patent: 5795146 (1998-08-01), Orbeck
patent: 2004/0173608 (2004-09-01), Seccombe et al.
patent: 0 075 438 (1983-03-01), None
patent: 0 355 520 (1990-02-01), None
patent: 1 004 837 (2000-05-01), None
EPO Search Report; conducted in Munchen on Sep. 20, 2006.

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