Method for alloying of coatings

Details Method for alloying of coatings Method for alloying of coatings

1989-02-24

1990-01-23

Pianalto, Bernard

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

427 47, 4273831, 427433, 4274342, B05D 302

Patent

active

048957364

ABSTRACT:
A method particularly adapted for alloying a coating on a steel strip. The invention uses an induction heating furnace to produce a galvannealed product. In particular, the operating frequency to the heating coils of the furnace is modulated to avoid a resonant vibration in the steel strip through the heating zone of the furnace. Preferably the invention comprises imposing a frequency modulation on the operating frequency of the power signal to the heating coils.

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