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2 465 333

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(51)

IPC

C21B7/16(2006-01-01)

(21) (22)

Application

2011104102/02, 2011-02-04

(24)

Start date

2011-02-04

(22)

Actual filing date

2011-02-04

(45)

Published

2012-10-27

(72)

Inventor

Radjuk Aleksandr GermanovichTitljanov Aleksandr EvgrafovichVasil'Ev Dmitrij StanislavovichKrikunov Nikolaj IvanovichLysenko Sergej AleksandrovichTitov Vladimir NikolaevichShcheglov Ehduard MikhajlovichSolod Evgenij VladimirovichKrikunov Ivan Nikolaevich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Metallurgicheskij Kombinat"

PREPARATION METHOD OF AIR TUYERE OF BLAST FURNACE FOR OPERATION Russian patent published in 2012 - IPC C21B7/16

Abstract RU 2465333 C2

FIELD: metallurgy.

SUBSTANCE: method involves shot-blasting treatment of working copper surface of tuyere, application thereto of aluminium-bearing gas-thermal coating, and heat treatment which involves the furnace tuyere heating up to 780-800°C, exposure during 4-10 h and cooling in the furnace. Thickness of coating on external surface of tuyere is 0.5-0.6 mm, and it exceeds the thickness of coating on its external surface by not less than 40% on surface of blasting channel of tuyere.

EFFECT: reduction of the number of treatment operations of air tuyere surface.

4 ex, 1 tbl

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RU 2 465 333 C2

Authors

Radjuk Aleksandr Germanovich

Titljanov Aleksandr Evgrafovich

Vasil'Ev Dmitrij Stanislavovich

Krikunov Nikolaj Ivanovich

Lysenko Sergej Aleksandrovich

Titov Vladimir Nikolaevich

Shcheglov Ehduard Mikhajlovich

Solod Evgenij Vladimirovich

Krikunov Ivan Nikolaevich

Dates

2012-10-27—Published

2011-02-04—Filed