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Application

2000104810/02, 2000-02-29

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Start date

2000-02-29

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Actual filing date

2000-02-29

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Published

2000-09-20

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Inventor

Gurkalov P.I.Moskalenko V.A.Bagdasarov Ju.Eh.Shafigin Z.K.Stepashin A.M.Tolstenko S.A.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo

METHOD OF PRODUCTION OF ROLLED STOCK Russian patent published in 2000 - IPC

Abstract RU 2156312 C1

FIELD: metallurgy, more specifically, production of critical rolled products with prolonged service life. SUBSTANCE: method includes melting of steel of definite chemical composition in electric furnace, tapping of steel into ladle, metal treatment in ladle and pouring of steel into ingot molds. Alloying of steel with niobium is carried out in course of steel tapping from furnace into ladle by introduction of ferro-niobium in amount of 0.35-1.8 kg/t of steel. After casting, castings are subjected to rolling, cooling, isothermal holding, preliminary and final deformation. Process is complete by final cooling of stock to ambient temperature. EFFECT: higher cold and corrosion resistance of stock metal. 3 cl, 1 ex

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RU 2 156 312 C1

Authors

Gurkalov P.I.

Moskalenko V.A.

Bagdasarov Ju.Eh.

Shafigin Z.K.

Stepashin A.M.

Tolstenko S.A.

Dates

2000-09-20—Published

2000-02-29—Filed

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