Apparatus for electrically contacting treatment material for etching and galvanizing comprises coating the metallic blank region of the contact surfaces with a corrosion protection layer and etching the galvanized layer

摘要

Apparatus for electrically contacting treatment material for etching and galvanizing comprises coating the metallic blank region of the contact surfaces with a corrosion protection layer; and etching the galvanized layer without forming a residue. An Independent claim is also included for a process for electrically contacting treatment material for etching and galvanizing comprising using the above apparatus. Preferred Features: The corrosion coating consists of a precious metal or precious metal alloy, or specially treated carbon.