METHOD OF FINISHING SURFACE Russian patent published in 1997 - IPC

Abstract RU 2077606 C1

FIELD: blackening process. SUBSTANCE: metals and alloys of any composition and nonmetallic surfaces are blackened at relatively low temperatures by way of: applying onto surface of objects a thin layer of metal dithiocarbamate of general formula (R₁R₂NCS₂)_nMn⁺ⁿ,, where n is determined by metal valence, R₁ and R₂ are hydrogen, alkyl and aryl, and Me is Cu, Pb, Ag, Mn, Fe, Co, Ni, Zn, Bi, Cd, Sn or their mixture, followed by heat treatment at 280-750 C. EFFECT: improved procedure.

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RU 2 077 606 C1

Authors

Karaseva Eh.T.

Dates

1997-04-20—Published

1994-04-26—Filed