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2 532 874

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IPC

C21D9/32(2006-01-01)

C21D1/26(2006-01-01)

(21) (22)

Application

2012147986/02, 2012-11-12

(24)

Start date

2012-11-12

(22)

Actual filing date

2012-11-12

(45)

Published

2014-11-10

(72)

Inventor

Astashchenko Vladimir IvanovichShveev Andrej IvanovichShveeva Tat'Jana VladimirovnaRod'Kin Il'Ja MikhajlovichSafarov Damir Tamasovich

(73)

Holder

Federal'Noe Gosudarstvennoe Avtonomnoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Federal'Nyj Universitet"(Fgaou Vpo Kfu)

METHOD OF STEEL BLANK HEAT TREATMENT Russian patent published in 2014 - IPC C21D9/32 C21D1/26

Abstract RU 2532874 C2

FIELD: process engineering.

SUBSTANCE: invention relates to metallurgy. Heat treatment for billets after cold plastic deformation, mainly of steels, at continuous casting machines, involves austenitising at Ac₃+(100-150°C), cutting, cooling at the rate of over 20°C/min to 680-700°C, diffusion conversion of overcooled austenite at various temperatures in 680-660-640-600°C pattern with curing at every temperature for 60-80 minutes with termination of cooling in air.

EFFECT: minimised hardness stable "ferrite + granular perlite" structure for steel cold deformation.

3 dwg, 2 tbl

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RU 2 532 874 C2

Authors

Astashchenko Vladimir Ivanovich

Shveev Andrej Ivanovich

Shveeva Tat'Jana Vladimirovna

Rod'Kin Il'Ja Mikhajlovich

Safarov Damir Tamasovich

Dates

2014-11-10—Published

2012-11-12—Filed