RU2006138561A - METHOD FOR STRENGTHENING THE STEEL ROLL OF A MILLING MACHINE - Google Patents

METHOD FOR STRENGTHENING THE STEEL ROLL OF A MILLING MACHINE Download PDF

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Publication number
RU2006138561A
RU2006138561A RU2006138561/02A RU2006138561A RU2006138561A RU 2006138561 A RU2006138561 A RU 2006138561A RU 2006138561/02 A RU2006138561/02 A RU 2006138561/02A RU 2006138561 A RU2006138561 A RU 2006138561A RU 2006138561 A RU2006138561 A RU 2006138561A
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RU
Russia
Prior art keywords
strengthening
steel roll
milling machine
heating
temperature
Prior art date
Application number
RU2006138561/02A
Other languages
Russian (ru)
Other versions
RU2339469C2 (en
Inventor
Анатолий Александрович Киричков (RU)
Анатолий Александрович Киричков
Владимир Владимирович Стаканчиков (RU)
Владимир Владимирович Стаканчиков
Александр Федорович Зудов (RU)
Александр Федорович Зудов
Александр Адольфович Полуэктов (RU)
Александр Адольфович Полуэктов
Владимир Александрович Коротков (RU)
Владимир Александрович Коротков
Игорь Дмитриевич Михайлов (RU)
Игорь Дмитриевич Михайлов
Александр Иванович Трайно (RU)
Александр Иванович Трайно
паев Олег В чеславович Т (RU)
Олег Вячеславович Тяпаев
Original Assignee
Открытое акционерное общество "Нижетагильский металлургический комбинат" (ОАО "НТМК") (RU)
Открытое акционерное общество "Нижетагильский металлургический комбинат" (ОАО "НТМК")
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Открытое акционерное общество "Нижетагильский металлургический комбинат" (ОАО "НТМК") (RU), Открытое акционерное общество "Нижетагильский металлургический комбинат" (ОАО "НТМК") filed Critical Открытое акционерное общество "Нижетагильский металлургический комбинат" (ОАО "НТМК") (RU)
Priority to RU2006138561/02A priority Critical patent/RU2339469C2/en
Publication of RU2006138561A publication Critical patent/RU2006138561A/en
Application granted granted Critical
Publication of RU2339469C2 publication Critical patent/RU2339469C2/en

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Claims (1)

Способ упрочнения стального валка рельсобалочного стана, включающий механическую обточку валка, нагрев, электродуговую наплавку и последующую термическую обработку наплавленного слоя, отличающийся тем, что нагрев ведут до температуры 250 - 300°С со скоростью 50 - 100°С/ч, наплавку осуществляют со скоростью 25 - 40 м/ч при плотности электрического тока 40 - 45 А/мм2, а термическую обработку проводят путем нагрева до температуры 300 - 400°°С и выдержки при этой температуре в течение 1,5 - 2 ч.A method of hardening a steel roll of a beam and beam mill, including mechanical turning of the roll, heating, electric arc welding and subsequent heat treatment of the deposited layer, characterized in that the heating is carried out to a temperature of 250-300 ° C at a speed of 50-100 ° C / h, surfacing is carried out at a speed 25 - 40 m / h at an electric current density of 40 - 45 A / mm 2 , and heat treatment is carried out by heating to a temperature of 300 - 400 ° С and holding at this temperature for 1.5 - 2 hours.
RU2006138561/02A 2006-10-31 2006-10-31 Method for hardening of steel roller for rail and structural mill RU2339469C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2006138561/02A RU2339469C2 (en) 2006-10-31 2006-10-31 Method for hardening of steel roller for rail and structural mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2006138561/02A RU2339469C2 (en) 2006-10-31 2006-10-31 Method for hardening of steel roller for rail and structural mill

Publications (2)

Publication Number Publication Date
RU2006138561A true RU2006138561A (en) 2008-05-10
RU2339469C2 RU2339469C2 (en) 2008-11-27

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ID=39799657

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2006138561/02A RU2339469C2 (en) 2006-10-31 2006-10-31 Method for hardening of steel roller for rail and structural mill

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RU (1) RU2339469C2 (en)

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Publication number Publication date
RU2339469C2 (en) 2008-11-27

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