Continuous furnaces for strip or wire

Introduced: September 1968

Full Title

Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor > for wires; for strips > Furnaces for treating strips or wire > Continuous furnaces for strip or wire

Of 8 combined children, 6 exist in both systems.

2 codes are CPC-only extensions.

Child Classifications

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C21D 9/561 CPC only CPC only
C21D 9/562 +3 CPC CPC only CPC only
C21D 9/567 with heating in fluidised beds since 1980 IPC+CPC Available in IPC and CPC
C21D 9/573 with cooling since 1980 +2 CPC IPC+CPC Available in IPC and CPC
C21D 9/58 with heating by baths IPC+CPC Available in IPC and CPC
C21D 9/60 with induction heating IPC+CPC Available in IPC and CPC
C21D 9/62 with direct resistance heating IPC+CPC Available in IPC and CPC
C21D 9/63 the strip being supported by a cushion of gas since 1980 IPC+CPC Available in IPC and CPC