Bonding zone and bonding method resistant to corrosion between copper and stainless steel or titanium materials, constituents of the permanent cathodes for electrolytic processes and the cathode thus obtained

摘要

"UNION AREA AND UNION METHOD RESISTANT TO CORROSION BETWEEN COPPER AND STAINLESS STEEL OR TITANIUM, CONSTITUENTS OF THE PERMANENT CATHODS FOR ELECTROLYTIC PROCESSES AND THE CATHODE OBTAINED". In order to initially provide a bonding zone (10) and a bonding method between copper (2) and stainless steel or titanium (3), as well as the permanent cathode (1) obtained, wherein said bonding zone The union (10) comprises a first zone (101) formed by a copper-nickel alloy (Cu-Ni), an intermediate zone (102) with a predominantly pure nickel or nickel alloy and a second zone (103) formed by a stainless steel-nickel alloy, resulting from the fusion of the participating materials in a TIG or MIG welding process or by the manual arc, using nickel electrodes as contribution welding, between these materials and their spatial arrangement, that is, leaving a separation between materials at the time of the welding process, which ensures: a) greater tensile strength, b) a radical improvement in the corrosion resistance of joint welding, and c) an improvement in conductivity, which can further improve through s modifying the design of straight bus bar, providing a corniforme format.