METHOD FOR STRENGTHENING OF HARD-ALLOY AND DIAMOND TOOLS FOR DRILLING ROCK Russian patent published in 1998 - IPC

Abstract RU 2101456 C1

FIELD: mechanical engineering. SUBSTANCE: method for strengthening of hard-alloy and diamond tools implies thermal treatment by cold and namely by immersing tools in liquid nitrogen. After treatment by cold, tools are subjected to radiation treatment by gamma-ray photons. Tools treated in aforesaid method reveal stable high drilling productivity per bit and high mechanical drilling velocity in various kinds of rock. EFFECT: high efficiency. 2 tbl

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RU 2 101 456 C1

Authors

Rjabchikov S.Ja.

Mamontov A.P.

Dates

1998-01-10—Published

1995-11-17—Filed