METHOD OF APPLYING HARDFACING COMPOSITION TO A SURFACE OF AN EARTH-BORING TOOL Russian patent published in 2018 - IPC E21B10/46 C23C4/06

Abstract RU 2658688 C2

FIELD: drilling of soil or rock.

SUBSTANCE: invention relates to a method of applying a hardfacing composition to surfaces of earth-boring tools. Method of applying a hardfacing composition comprises embedding grains of hard material in a molten cobalt-based metal alloy including at least 5.0 wt% of ruthenium on a surface of an earth-boring tool. Molten cobalt-based metal alloy is further cooled and solidified with the grains of hard material embedded therein.

EFFECT: technical result is increased wear-resistance of an earth-boring tool.

13 cl, 8 dwg

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RU 2 658 688 C2

Authors

Izon Dzhimmi U.

Dates

2018-06-22—Published

2014-02-28—Filed