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2 365 636

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IPC

C21D8/04(2006-01-01)

C22C38/04(2006-01-01)

(21) (22)

Application

2008123494/02, 2008-06-09

(24)

Start date

2008-06-09

(22)

Actual filing date

2008-06-09

(45)

Published

2009-08-27

(72)

Inventor

Rumjantsev Mikhail IgorevichShubin Igor' Gennad'EvichZavalishchin Aleksandr NikolaevichTsepkin Aleksej SergeevichKornilov Vladimir LeonidovichAntipanov Vadim Grigor'Evich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Metallurgicheskij Kombinat"

METHOD OF MANUFACTURE OF HOT-ROLLED SHEET STEEL Russian patent published in 2009 - IPC C21D8/04 C22C38/04

Abstract RU 2365636 C1

FIELD: metallurgy.

SUBSTANCE: invention relates to metal-forming process, in particular to manufacture of hot-rolled sheet steel. The sheet steel is hot rolled from the steel containing wt %: carbon 0.09-0.11, manganese 0.25-0.56, silicon, chromium, nickel with the carbon equivalent C_e=0.12-0.18, with the temperature of the end of rolling is taken as the following correlation: t_er=A+300C_e - 40°C, and the temperature of winding as t_winding=B-(100-110)°C, where: A=913.7-207.13 [C] - 46.6 [Mn]+110.54 [Cr]+108.1 [Ni]; B=729.2-9.24 [C]+12.13 [Si]-15.56 [Mn]+17.71 [Cr]-46.44 [Ni].

EFFECT: manufacture of hot-rolled sheet steel with properties of cold-rolled steel of deep drawing.

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RU 2 365 636 C1

Authors

Rumjantsev Mikhail Igorevich

Shubin Igor' Gennad'Evich

Zavalishchin Aleksandr Nikolaevich

Tsepkin Aleksej Sergeevich

Kornilov Vladimir Leonidovich

Antipanov Vadim Grigor'Evich

Dates

2009-08-27—Published

2008-06-09—Filed