Complex requirements a precoated steel must satisfy during pressing, welding, painting and providing optimum corrosion resistance in use, are reviewed. A monofunction coating (zinc or zinc alloy) cannot satisfy all these parameters. A Multilayer Electro Galvanized (MEG) product, Zincrox, was found to be the most suitable to car body applications; the continuously superimposed electrolytic layers are:Zn-Cr-CrOx. The coating is still 99 % Zn, but the thin layers of Cr-CrOx have solved critical problems: formability, weldability, welding fumes, electrode wear, paint adhesion, hydrogen cratering, galvanic contacts and resistance to the most severe corrosion tests with a reduced zinc thickness. Advantages in costs, scrap downpricing, main applications and developments are reported too.


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    Titel :

    Multilayer electrogalvanized (Zn-Cr-CrOx) steel sheet for optimum corrosion protection of car bodies


    Weitere Titelangaben:

    Mehrschichtig galvanisiertes (Zn-Cr-CrOx) Stahlblech fuer optimalen Korrosionsschutz von Fahrzeugbaukoerpern


    Beteiligte:
    Catanzano, A. (Autor:in) / Arrigoni, G. (Autor:in) / Palladino, M. (Autor:in) / Serracino, M. (Autor:in)


    Erscheinungsdatum :

    1983


    Format / Umfang :

    18 Seiten, 21 Bilder, 6 Tabellen, 6 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Multilayer ElectroGalvanized ( Zn-Cr-CrOx) Steel Sheet for Optimum Corrosion Protection of Car Bodies

    Catanzano,A. / Arrigoni,G. / Palladino,M. et al. | Kraftfahrwesen | 1983


    Multizincrox - an improved multilayer electrogalvanized steel sheet

    Ferguson, N.T. / Tropeano, A. / Raggio, C. et al. | Tema Archiv | 1987


    One-Side-Electrogalvanized Steel Sheet for Automotive

    Higgs,R.F. / Komp,M.E. / Oles,E.J. et al. | Kraftfahrwesen | 1980


    One-Side-Electrogalvanized Steel Sheet for Automotive Applications

    Oles, E. J. / Komp, M. E. / Higgs, R. F. | SAE Technical Papers | 1980


    Frictional Behavior of Electrogalvanized Sheet Steels

    Van Tyne, C. J. / Matlock, D. K. / Hylton, T. A. | SAE Technical Papers | 1993