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2 043 869

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C1

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IPC

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Application

93057443/02, 1993-12-28

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Actual filing date

1993-12-28

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Published

1995-09-20

(72)

Inventor

Korshunov A.B.Mjakotin E.A.Mirkin L.I.Shorin A.M.Smirnova N.B.Pikunov D.V.Shurkova V.V.Danilov S.L.Shemaev B.V.

(73)

Holder

Nauchno-Issledovatel'Skij Institut Mekhaniki Mgu Im.M.V.Lomonosova

STEEL BLANKS WORKING METHOD Russian patent published in 1995 - IPC

Abstract RU 2043869 C1

FIELD: mechanical engineering. SUBSTANCE: preliminary worked steel is alloyed by metallurgical way separately or in combination of chrome, manganese, cobalt, nickel and molybdenum in following concentrations ( in mass): chrome no less than 12; manganese no less than 1.05; cobalt no less than 14; nickel no less than 5; molybdenum no less than 5. Cobalt, titanium carbide, tantalum carbide, niobium carbide are introduced in hard alloy so, that their total concentration is no less than 15 mass Produced tools of alloy are subjected to action of α and g radiation in intervals 4,0·1012-1,9·1013 cm-2, 8,6·107-1,3·108 roentgen correspondingly. EFFECT: increased cutting tools durability, prevented residual radioactivity, increased efficiency. 2 tbl

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RU 2 043 869 C1

Authors

Korshunov A.B.

Mjakotin E.A.

Mirkin L.I.

Shorin A.M.

Smirnova N.B.

Pikunov D.V.

Shurkova V.V.

Danilov S.L.

Shemaev B.V.

Dates

1995-09-20—Published

1993-12-28—Filed

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