Method for forming tough, electrical insulating layer on surface

Details Method for forming tough, electrical insulating layer on surface Method for forming tough, electrical insulating layer on surface

1991-02-08

1992-01-07

Tufariello, T. M.

Electrolysis: processes, compositions used therein, and methods

Electrolytic coating

Coating predominantly single metal or alloy substrate of...

205151, 205316, 205333, C25D 1134

Patent

active

050788442

ABSTRACT:
An electrical insulating coating layer having excellent adhesion, toughness and heat resistance is formed on a surface of a copper material by anodizing the copper material under a low current in an acid bath of a hexacyanoiron complex. Copper materials such as coil wires can hence be provided with a thin, heat-resistant, electrical insulating layer, whereby the values of the copper materials can be heightened.

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