Title:
SURFACE TREATMENT OF METAL
Document Type and Number:
Japanese Patent JPS56123398
Kind Code:
A
Abstract:
PURPOSE:To impart hardness and self-lubricity and improve abrasion resistance by forming a porous anodic-oxidation film on the surface of Al, then impregnating a granular lubricant using a synthetic resin as a binder thereby sealing the surface. CONSTITUTION:The surface of parts made of Al or Al alloy is anodized under high chemical conversion voltage, whereby a porous anodic oxidation film 11 of large unevenness is formed. Next, a layer 12 consisting of ''Teflon '' which is one kind of fluorine resins as a synthetic resin, as a binder and MoS2 13 of 0.2mum average sizes as a granular lubricant is impregnated in the rugged porous parts of the anodic oxidation film. This yields the surface which is superior in the self- lubricity by MoS2, is high in the hardness by the oxide film and is superior in abrasion resistance.
Inventors:
TOUJIYOU TOORU
Application Number:
JP2508980A
Publication Date:
September 28, 1981
Filing Date:
February 29, 1980
Export Citation:
Assignee:
TOKYO SHIBAURA ELECTRIC CO
International Classes:
C25D11/18; C25D11/24; (IPC1-7): C25D11/18