METHOD OF DIAMOND TOOLS HARDENING Russian patent published in 2018 - IPC B24D3/34 C23C22/05 B23B27/14 

FIELD: chemical industry.

SUBSTANCE: invention relates to thermochemical processing of products from diamond-containing materials using an aqueous chemical environment, in particular, to methods of finishing strengthening the processing of ready-to-use cutting and abrasive diamond tools on a metal, ceramic and organic bond. Method of diamond tools hardening includes surface preparation, hydrochemical treatment in an aqueous chemically active environment, and final heating. Hydrochemical treatment is carried out for 10–50 minutes in a water-dispersible reactive environment at a temperature not higher than its boiling, which includes a surfactant with concentration of 0.3–20 g/l, nanocarbon material with concentration of 0.05–5 g/l, molybdenum oxide with concentration of 0.3–40 g/l and one of titanium, silicon oxide, tin, manganese nanooxides, lead, cobalt, nickel, aluminum, zinc, antimony, vanadium, bismuth, boron, beryllium, zirconium, iron, chromium, tungsten or copper with concentration of 0.3–40 g/l. Final heating of the products is carried out in a bath with engine oil at a temperature of 110–150 °C.

EFFECT: diamond tools hardening is provided, which allows to significantly improve the durability of fast-wearable diamond tools.

1 cl, 1 tbl