Typical layers with cathodic corrosion protection for steel are zinc and zinc alloys. These layers are usually chromated and, for special applications, an additional organic or inorganic topcoat is applied. The most attractive finish is either black or clear. For aesthetic reasons, black coatings must be used for parts to be mounted in close vicinity of other black parts. Trivalent clear chromatings with good corrosion protection are nowadays well established in the production lines, but trivalent black chromatings are not. Development efforts were made to identify and overcome the problems and/or to find suitable workarounds. This paper will introduce a complete line of new products for producing black parts with high cathodic corrosion protection. This is: black chromiting on top of acid zinc and on top of alkaline Zn, Zn/Fe and Zn/Ni.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Black passivation films without hexavalent chromium on top of electroplated layers of zinc and zinc alloys


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Boin, Camila (Autor:in)

    Kongress:

    SAE Brasil 2007 Congress and Exhibit ; 2007



    Erscheinungsdatum :

    28.11.2007




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Black Passivation Films without Hexavalent Chromium on top of Electroplated Layers of Zinc and Zinc Alloys

    Boin, C. / Society of Automotive Engineers | British Library Conference Proceedings | 2007




    HEXAVALENT CHROMIUM DETERMINATION ON ANTICORROSION ZINC BASED COATING

    De Souza, J.C. / De Fonseca, W.B. / Do Nascimento, S.A. et al. | British Library Conference Proceedings | 2009


    Hexavalent chromium determination on anti-corrosion zinc based coatings

    de Souza, Júlio Cesar / Nascimento, Sara Araújo do / Fonseca, Weverton Barros | SAE Technical Papers | 2009