RU96103844A - METHOD OF RESTORING OPERATIONAL PROPERTIES OF HOT ROLLS - Google Patents

METHOD OF RESTORING OPERATIONAL PROPERTIES OF HOT ROLLS

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Publication number
RU96103844A
RU96103844A RU96103844/02A RU96103844A RU96103844A RU 96103844 A RU96103844 A RU 96103844A RU 96103844/02 A RU96103844/02 A RU 96103844/02A RU 96103844 A RU96103844 A RU 96103844A RU 96103844 A RU96103844 A RU 96103844A
Authority
RU
Russia
Prior art keywords
operational properties
hot rolls
restoring
cooling
beginning
Prior art date
Application number
RU96103844/02A
Other languages
Russian (ru)
Other versions
RU2092586C1 (en
Inventor
В.В. Ветер
Г.А. Белкин
А.В. Мельников
А.А. Букинич
Original Assignee
Акционерное общество "Новолипецкий металлургический комбинат"
Общество с огpаниченной ответственностью "Научно-производственное предприятие "Валок"
Filing date
Publication date
Application filed by Акционерное общество "Новолипецкий металлургический комбинат", Общество с огpаниченной ответственностью "Научно-производственное предприятие "Валок" filed Critical Акционерное общество "Новолипецкий металлургический комбинат"
Priority to RU96103844A priority Critical patent/RU2092586C1/en
Priority claimed from RU96103844A external-priority patent/RU2092586C1/en
Application granted granted Critical
Publication of RU2092586C1 publication Critical patent/RU2092586C1/en
Publication of RU96103844A publication Critical patent/RU96103844A/en

Links

Claims (1)

Способ восстановления эксплуатационных свойств валков станов горячей прокатки, включающий нагрев поверхности валка до температуры отпуска за счет контакта его поверхности с прокатываемым металлом и охлаждение, сначала замедленное, а затем ускоренное, отличающийся тем, что время этапа замедленного охлаждения валка составляет 0,4-0,9 времени отпуска, причем расход охлаждающей жидкости в начале этапа ускоренного охлаждения составляет не более 0,5 номинального, с плавным увеличением расхода до номинального значения к началу эксплуатации валка.The method of restoring the operational properties of the rolls of hot rolling mills, including heating the surface of the roll to the tempering temperature due to the contact of its surface with the rolled metal and cooling, first slowed down and then accelerated, characterized in that the stage of delayed cooling of the roll is 0.4-0, 9 vacation time, and the flow rate of the coolant at the beginning of the stage of accelerated cooling is not more than 0.5 nominal, with a smooth increase in flow to the nominal value by the beginning of operation ka.
RU96103844A 1996-02-27 1996-02-27 Method of restoring operational characteristics of rolls in hot- rolling mills RU2092586C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU96103844A RU2092586C1 (en) 1996-02-27 1996-02-27 Method of restoring operational characteristics of rolls in hot- rolling mills

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU96103844A RU2092586C1 (en) 1996-02-27 1996-02-27 Method of restoring operational characteristics of rolls in hot- rolling mills

Publications (2)

Publication Number Publication Date
RU2092586C1 RU2092586C1 (en) 1997-10-10
RU96103844A true RU96103844A (en) 1997-10-27

Family

ID=20177437

Family Applications (1)

Application Number Title Priority Date Filing Date
RU96103844A RU2092586C1 (en) 1996-02-27 1996-02-27 Method of restoring operational characteristics of rolls in hot- rolling mills

Country Status (1)

Country Link
RU (1) RU2092586C1 (en)

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