METHOD OF OBTAINING THICK-LAYER PROTECTIVE COATS AT HIGH ADHESION ON PARTS MADE FROM RECTIFYING METALS OR THEIR ALLOYS IN MODE OF MICRO-ARC OXIDATION Russian patent published in 2004 - IPC

FIELD: electrochemistry; anodizing of parts made from rectifying metals: aluminum, titanium, tantalum and the like, as well as their alloys; mechanical engineering. SUBSTANCE: proposed method includes placing the part into electrolyte on current-conducting holder, coating it with insulating material, forming working voltage between part and electrolyte and increasing voltage for producing micro-arc discharge on surface of part; holder is coated on its outside with electro-insulating material at air-electrolyte interface. EFFECT: enhanced hardness of coats; low friction coefficient; avoidance of lubrication in friction pairs. 1 dwg, 2 ex