METHOD OF MANUFACTURE OF DIAMOND ROCK-CUTTING TOOL Russian patent published in 2000 - IPC

Abstract RU 2156186 C2

FIELD: powder metallurgy, particularly, manufacture of diamond rock-cutting tools such as diamond crown bits, drilling bits and reamers. SUBSTANCE: method includes placing into mold of diamond grains and matrix material, introduction of activator, pressing and impregnation with binding metal. Matrix material includes aluminum in amount of 2.5-3.5% of matrix material weight. Activator is used in form of saturated alcohol-aqueous solution of tin dichloride in amount of 2.0- 3.0% of weight of matrix material. EFFECT: higher endurance of diamond tool. 1 ex

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RU 2 156 186 C2

Authors

Budjukov Ju.E.

Dates

2000-09-20—Published

1998-12-30—Filed