DIFF Subgroup
H05B 7/18 Heating by arc discharge
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Heating by electric discharge > Heating by arc discharge
CPC:
Heating by electric discharge (plasma torches H05H1/26) > Heating by arc discharge
Of 3 combined children, 2 exist in both systems.
1 codes are CPC-only extensions.
IPC defines codes here since 1974.
Child Classifications
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- H05B 7/20 Direct heating by arc discharge, i.e. where at least one end of the arc directly acts on the material to be heated, including additional resistance heating by arc current flowing through the material to be heated since 1974 IPC+CPC Available in IPC and CPC