Housing and method for making the same

• Main Authors: ZHANG CHENG-GUO, LI YONG-MING, LIN CHIH-PEN, REN NAI-JUAN, ZHANG YI-LIN, LUO XIAN-FENG
• Format: Patent
• Language: English
• Published: 21.12.2006
• 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; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; PERFORMING OPERATIONS; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING

A housing ( 100 ) includes a housing base ( 10 ), a chromium film ( 12 ), and a chromium carbide film ( 14 ). The housing base is made of a material of metal or metal alloys. The chromium film is formed on a surface of the housing base, and the chromium carbide film is formed on a surface of the chromium film. The present invention also provides a method for making the housing.