Ensamblaje de una pieza a base de aluminio y de una pieza de acero provista de un revestimiento a base de una aleación znaimg

• Main Authors: MOREL, Stéphane, DOSDAT, Laurence, COFFIGNY-GREGOIRE, Astrid, ALLELY, Christian
• Format: Patent
• Language: Spanish
• Published: 10.08.2016
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; PERFORMING OPERATIONS; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FORVEHICLES; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING; VEHICLES IN GENERAL; WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILARDEVICES FOR VEHICLES

Ensamblaje (1) de un elemento (2) a base de aluminio y de un elemento (3) de acero provisto sobre al menos una de sus caras de un revestimiento metálico a base de aleación cinc-aluminio-magnesio que comprende del 2,3 al 3,3% en peso de magnesio, del 3,5 al 3,9% en peso de aluminio, siendo el resto del revestimiento metálico cinc, las impurezas inevitables y eventualmente hierro con un contenido que puede llegar hasta un 5% en peso y eventualmente uno o varios elementos adicionales escogidos entre Si, Sb, Pb, Ti, Ca, Mn, Sn, La, Ce, Cr, Ni o Bi, siendo el contenido en peso de cada elemento adicional inferior al 0,3%, estando dicha cara revestida del elemento (3) de acero en contacto al menos parcial con dicho elemento (2) a base de aluminio, pudiendo ser realizado dicho contacto por medio de una capa de adhesivo y/o de masilla cuyo grosor es inferior a 5 mm. An Al-steel assembly is provided. The assembly includes an aluminum-based element and a steel element on at least one surface of the aluminum-based element. The steel element has a metal coating made of a zinc-aluminum-magnesium alloy and includes from 2.3% to 3.3% by weight of magnesium and from 3.6% to 3.9% by weight of aluminum. A coated surface of the steel element is in contact with the aluminum-based element in an assembly zone and a protective coating coats the assembly around and adjacent the assembly zone. A body-in-white, further assembly and method are also provided.