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2 314 908

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IPC

B24D18/00(2006-01-01)

B24D3/10(2006-01-01)

(21) (22)

Application

2006101265/02, 2006-01-16

(24)

Start date

2006-01-16

(22)

Actual filing date

2006-01-16

(45)

Published

2008-01-20

(72)

Inventor

Spirin Vasilij IvanovichVlasjuk Viktor IvanovichBudjukov Jurij EvdokimovichOsosov Igor' Anatol'Evich

(73)

Holder

Federal'Noe Gosudarstvennoe Unitarnoe Nauchno-Issledovatel'Skoe Geologicheskoe Predprijatie Nigp"

DIAMOND DRILLING BIT MANUFACTURING METHOD Russian patent published in 2008 - IPC B24D18/00 B24D3/10

Abstract RU 2314908 C2

FIELD: machine engineering, possibly manufacture of diamond tools for drilling rocks.

SUBSTANCE: method comprises steps of pressing and sintering matrix of drilling bit at using granulated diamonds with envelope. Diameter of granule envelope is selected according to formula: where K - shrinkage factor of material of diamond granule envelope, K = 0.45 - 0.56; d_d - diameter of diamond grain, m; A -proportionality coefficient, A = 400%; G - granule coefficient, G = 50 - 400%.

EFFECT: improved strength of diamond bits, increased drilling rate, enhanced quality of drilling.

3 cl

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RU 2 314 908 C2

Authors

Spirin Vasilij Ivanovich

Vlasjuk Viktor Ivanovich

Budjukov Jurij Evdokimovich

Ososov Igor' Anatol'Evich

Dates

2008-01-20—Published

2006-01-16—Filed