C - Chemistry – Metallurgy – 21 – D
Patent
C - Chemistry, Metallurgy
21
D
C21D 1/30 (2006.01) C21D 1/34 (2006.01) C21D 9/00 (2006.01) C21D 9/02 (2006.01) F27B 9/16 (2006.01) F27D 7/04 (2006.01) F27D 99/00 (2010.01) F27D 23/00 (2006.01)
Patent
CA 2138116
A heat insulated enclosure with an inlet introducing metal parts such as coil springs to be heat treated, such as by annealing. The apparatus also includes a support on which the metal parts are received, where they are continuously moved towards an outlet. A continuous flow of hot air is circulated substantially perpendicularly with respect to the metal parts to provide the heat treatment. This can be achieved by means of a rotary disk to receive the metal parts and allowing them to follow a spiral path until reaching the outlet. This system enables a continuous operation and is therefor much cheaper to operate.
Grenier Mario
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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