PROCESO PARA FABRICAR ACERO LAMINADO EN FRIO CON EXCELENTE FOSFATABILIDAD Y RESISTENCIA A LA CORROSION QUE SE EXHIBEN DESPUES DE PINTARLO

• Main Authors: YOSHIMI NAOTO, SUGIMOTO YOSHIHARU, TAIRA SHOICHIRO, OOTSUKA SHINJI
• Format: Patent
• Language: Spanish
• Published: 12.03.2014
• Subjects: ALLOYS; APPARATUS THEREFOR; 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; ELECTROFORMING; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; FERROUS OR NON-FERROUS ALLOYS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; PERFORMING OPERATIONS; PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS

Una lámina de acero laminada en frío es electrogalvanizada para obtener una masa de depósito de zinc por unidad de área en la superficie de 100 a 5.000 mg/m2, es lavada con agua y puesta en contacto con una solución acuosa que contiene fósforo P. La concentración de fósforo P y la temperatura de la solución acuosa con contenido de fósforo P se encuentran entre 0,001 g/l y 2 g/l y entre 30ºC y 60ºC.