ELECTRODE ROD FOR ELECTRIC SPARK SURFACING, METHOD FOR MAKING IT AND METHOD FOR APPLYING COATING CONTAINING SUPERABRASIVE Russian patent published in 2004 - IPC

FIELD: application of coatings by electric spark alloying. SUBSTANCE: electrode rod is made of homogenously mixed and pressed powders including first component containing ferrum, cobalt, nickel, metal of 4a, 5a, 6a groups of Periodic System and(or) silicon and second component providing self-propagation high-temperature synthesis at process of electric spark alloying for receiving together with first component carbide, nitride, boride, silicide or intermetallic compound. Electrode rod may include hard material such as diamond neutral to process of self-propagation electric spark synthesis. Electric spark discharge between electrode rod and substrate causes transfer of components onto substrate surface. Applied coating includes at least one layer having above mentioned compound. EFFECT: rational consumption of energy of electric spark discharge due to heat separated at reaction of self-propagation high-temperature synthesis. 40 cl, 2 dwg, 7 tbl, 6 ex