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2 017 578

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C1

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IPC

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Application

4934159/02, 1991-05-05

(22)

Actual filing date

1991-05-05

(45)

Published

1994-08-15

(72)

Inventor

Minnekhanov G.N.Saburov V.P.Musjalov S.V.Gurkin I.A.Udras A.A.

(73)

Holder

Omskij Politekhnicheskij Institut

METHOD OF MANUFACTURE OF CASTINGS FROM HIGH-CHROMIUM CAST IRON Russian patent published in 1994 - IPC

Abstract RU 2017578 C1

FIELD: metallurgy. SUBSTANCE: method involves melting of charge, superheating of metal, modification and pouring of metal. At a temperature of 1500-1650 C the melt is added by ultra- dispersion powders of difficultly fusible compounds of nitrite, carbide, carbonitrite, oxide, boride group in the amounts of 0.05- 0.2 per cent of weight of charge, and at a temperature of 1450-1600 C it is added by dispersion powders of nitrites, carbides and oxides containing particles of 1-300 microns in the amounts of 0.0500.6 per cent of weight of charge. EFFECT: enhanced operating efficiency. 1 tbl

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RU 2 017 578 C1

Authors

Minnekhanov G.N.

Saburov V.P.

Musjalov S.V.

Gurkin I.A.

Udras A.A.

Dates

1994-08-15—Published

1991-05-05—Filed

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