RU2001134917A - Method for continuous cold rolling of strips in a multi-stand mill - Google Patents

Method for continuous cold rolling of strips in a multi-stand mill

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Publication number
RU2001134917A
RU2001134917A RU2001134917/02A RU2001134917A RU2001134917A RU 2001134917 A RU2001134917 A RU 2001134917A RU 2001134917/02 A RU2001134917/02 A RU 2001134917/02A RU 2001134917 A RU2001134917 A RU 2001134917A RU 2001134917 A RU2001134917 A RU 2001134917A
Authority
RU
Russia
Prior art keywords
temperature
coolant
last stand
work rolls
strips
Prior art date
Application number
RU2001134917/02A
Other languages
Russian (ru)
Other versions
RU2212963C2 (en
Inventor
Павел Павлович Чернов
Игорь Юрьевич Приходько
Александр Матвеевич Сафьян
Владимир Николаевич Скороходов
Владимир Викторович Акишин
Евгений Александрович Парсенюк
Александр Петрович Долматов
Владимир Петрович Рубанов
Original Assignee
Открытое акционерное общество "Новолипецкий металлургический комбинат"
Filing date
Publication date
Application filed by Открытое акционерное общество "Новолипецкий металлургический комбинат" filed Critical Открытое акционерное общество "Новолипецкий металлургический комбинат"
Priority to RU2001134917A priority Critical patent/RU2212963C2/en
Priority claimed from RU2001134917A external-priority patent/RU2212963C2/en
Publication of RU2001134917A publication Critical patent/RU2001134917A/en
Application granted granted Critical
Publication of RU2212963C2 publication Critical patent/RU2212963C2/en

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Claims (1)

Способ непрерывной холодной прокатки полос в многоклетьевом стане, включающий пропуск полос через прокатные клети, измерение и регулирование в них расходов смазочно-охлаждающей жидкости (СОЖ), измерение температуры СОЖ, подаваемой на рабочие валки, а также регулирование теплового профиля рабочих валков последней клети их секционным (зонным) охлаждением, отличающийся тем, что в процессе прокатки дискретно через интервалы времени определяют температуру рабочих валков последней клети и температуру подаваемой на них СОЖ, вычисляют действительную разность этих температур и сравнивают эту разность с требуемой, а суммарный расход СОЖ в группе клетей, предшествующей последней клети, между замерами температуры устанавливают по зависимости:A method of continuous cold rolling of strips in a multi-stand mill, including passing the strips through the rolling stands, measuring and regulating the flow rates of coolant in them, measuring the temperature of the coolant supplied to the work rolls, and also regulating the thermal profile of the work rolls of the last stand in their section (zone) cooling, characterized in that during the rolling process, the temperature of the work rolls of the last stand and the temperature of the coolant supplied to them are determined discretely at time intervals, and the action Tel'nykh difference of these temperatures, and this difference is compared with a desired, and the total flow rate of coolant in the group stands preceding the last stand, between measurements of temperature set depending on:
Figure 00000001
,
Figure 00000001
, где Q1 - суммарный расход СОЖ в клетях, предшествующих последней клети, устанавливаемый между замерами температуры внутри текущего интервала времени, м3/ч;where Q 1 is the total coolant consumption in the stands preceding the last stand, established between temperature measurements within the current time interval, m 3 / h; Q2 - суммарный расход СОЖ в клетях, предшествующих последней клети, установленный между замерами температуры внутри предыдущего интервала времени, м3/ч;Q 2 - the total coolant flow in the stands preceding the last stand, established between temperature measurements within the previous time interval, m 3 / h; k=0,001...0,5 - коэффициент, безразмерный ;k = 0.001 ... 0.5 - coefficient, dimensionless; Δt∂ - действительная разность температуры рабочих валков последней клети и температуры подаваемой па них СОЖ, °С;Δt∂ is the actual temperature difference of the work rolls of the last stand and the temperature of the coolant supplied to them, ° С; Δtmp - требуемая разность температуры рабочих валков последней клети и температуры подаваемой на них СОЖ, при этом требуемую разность температур Δtmp устанавливают в пределах 5...30°С.Δt mp - the required temperature difference of the work rolls of the last stand and the temperature of the coolant supplied to them, while the required temperature difference Δt mp is set within 5 ... 30 ° C.
RU2001134917A 2001-12-25 2001-12-25 Method for continuous cold rolling of strips in multistand rolling mill RU2212963C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2001134917A RU2212963C2 (en) 2001-12-25 2001-12-25 Method for continuous cold rolling of strips in multistand rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2001134917A RU2212963C2 (en) 2001-12-25 2001-12-25 Method for continuous cold rolling of strips in multistand rolling mill

Publications (2)

Publication Number Publication Date
RU2001134917A true RU2001134917A (en) 2003-08-20
RU2212963C2 RU2212963C2 (en) 2003-09-27

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111672915B (en) * 2020-05-21 2022-03-15 武汉定飞科技有限公司 Energy-saving operation method for liquid supply pump of reversible cold rolling mill

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