DIAMOND DRILL BIT Russian patent published in 1998 - IPC

Abstract RU 2112131 C1

FIELD: drilling equipment, rock-breaking tools. SUBSTANCE: diamond drill bit includes hollow cylindrical body and diamond- carrying hard-alloy matrix. Matrix is composed of hard-alloy mixture, wear-resistant hard-alloy filler and infiltration material having different acoustic stiffness. Relation of linear dimensions of particles of hard-alloy mixture and wear-resistant hard-alloy filler lies within limits from 1:15 up to 1:25 and relation of total areas of their surfaces amounts to 40:1 up to 48:1. EFFECT: increased operational characteristics of diamond drill bit. 2 dwg

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RU 2 112 131 C1

Authors

Nikitaev V.A.

Vlasjuk V.I.

Gorshkov L.K.

Spirin V.I.

Ososov I.A.

Dates

1998-05-27—Published

1996-07-15—Filed