METHOD OF SURFACE HARDENING TREATMENT Russian patent published in 1994 - IPC

Abstract RU 2023578 C1

FIELD: metal pressure forming. SUBSTANCE: method comprises steps of hardening by surface plastic deformation in a medium of lubricating and cooling liquid, including a soft metal as a filler, reducer of this metal oxides and reducer of oxides of material of part, being worked; taking the filler in quantity, consisting 70% of total mass of the lubricating and cooling liquid; using the filler in the form of combination of powders of metals with next content (mass %): ferrum - 5; copper - 25; tin -24; lead - 12; zinc -4; aluminium - 8; chrome - 18; nickel - 4. EFFECT: enhanced quality of part surface. 1 cl, 2 dwg, 2 tbl

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RU 2 023 578 C1

Authors

Dovgalev Aleksandr Mikhajlovich

Dates

1994-11-30Published

1989-08-22Filed