CARBON STEEL OR SPECIAL STEEL WITH FLUORINATED PASSIVE FILM FORMED, AND METHOD FOR FORMING THE SAME

• Main Authors: SATONAGA TOMOHIKO, YAMADA MUNETAKA
• Format: Patent
• Language: English
• Published: 24.07.2008
• Subjects: ALLOYS; 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; FERROUS OR NON-FERROUS ALLOYS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TREATMENT OF ALLOYS OR NON-FERROUS METALS

PROBLEM TO BE SOLVED: To provide a method for forming a fluorinated passive film capable of forming a fluorinated passive film having corrosion resistance on an iron steel base material other than a stainless steel material. SOLUTION: The method for forming a fluorinated passive film is characterized in that a base material made of carbon steel or special steel (other than stainless steel) is subjected to baking, and is then subjected to fluorination treatment at 50 to <150°C. COPYRIGHT: (C)2008,JPO&INPIT