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2 115 740

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Application

97110758/02, 1997-06-26

(22)

Actual filing date

1997-06-26

(45)

Published

1998-07-20

(72)

Inventor

Titljanov A.E.Radjuk A.G.Kostin A.A.Kuznetsov A.E.Krikunov N.I.Dolgov V.I.

(73)

Holder

Aktsionernoe Obshchestvo Metallurgicheskij Kombinat"

METHOD OF PREPARATION FOR OPERATION OF BLAST-FURNACE TUYERE Russian patent published in 1998 - IPC

Abstract RU 2115740 C1

FIELD: metallurgy; may be used in manufacture of blast-furnace tuyeres. SUBSTANCE: method includes deposition of aluminum-containing coating by spraying onto mouth part, external sleeve and weld connecting them. Coated tuyere together with furnace is heated; after annealing it is cooled in furnace. In so doing, thickness of coating of the mouth part and external sleeve is not less than 0.4 mm, and that of weld between mouth part and external sleeve is not less than 0.5 mm. EFFECT: higher productivity of process. 1 cl

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RU 2 115 740 C1

Authors

Titljanov A.E.

Radjuk A.G.

Kostin A.A.

Kuznetsov A.E.

Krikunov N.I.

Dolgov V.I.

Dates

1998-07-20—Published

1997-06-26—Filed

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