SU550185A1 - Method for hot rolling steel corrugated sheets - Google Patents

Method for hot rolling steel corrugated sheets

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Publication number
SU550185A1
SU550185A1 SU2160984A SU2160984A SU550185A1 SU 550185 A1 SU550185 A1 SU 550185A1 SU 2160984 A SU2160984 A SU 2160984A SU 2160984 A SU2160984 A SU 2160984A SU 550185 A1 SU550185 A1 SU 550185A1
Authority
SU
USSR - Soviet Union
Prior art keywords
corrugated sheets
corrugation
hot rolling
rolling steel
rolling
Prior art date
Application number
SU2160984A
Other languages
Russian (ru)
Inventor
Валентин Кириллович Больбот
Петр Антонович Бабаев
Борис Александрович Сычев
Евгений Леонидович Орлов
Валентин Прохорович Андреев
Original Assignee
Предприятие П/Я М-5230
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 Предприятие П/Я М-5230 filed Critical Предприятие П/Я М-5230
Priority to SU2160984A priority Critical patent/SU550185A1/en
Application granted granted Critical
Publication of SU550185A1 publication Critical patent/SU550185A1/en

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Description

1one

Изобретение относитс  к области обработки металлов давлением, в частности к способам прокатки рифленых стальных листов.The invention relates to the field of metal forming, in particular, to methods for rolling corrugated steel sheets.

Известен способ прокатки стальных рифленых листов, заключающийс  в том, что заготовку прокатывают в рифленых валках за два прохода с изменением направлени  рифлени .There is a known method of rolling steel corrugated sheets, in which the billet is rolled in corrugated rolls in two passes with a change in the direction of corrugation.

При прокатке рифленых листов таким способом при втором рифлении происходит усиленное пластическое течение металла в зоны очага деформации, не контролируемые инструментом . Это приводит к получению рифленых листов с неудовлетворительной точностью геометрических размеров, особенно толщины основани  первого рифлени .When rolling corrugated sheets in this way, a reinforced plastic flow of the metal to the zones of the deformation zone, which are not controlled by the tool, occurs during the second corrugation. This results in corrugated sheets with poor dimensional accuracy, especially the thickness of the base of the first corrugation.

Известен также способ прокатки стальных листов, предусматривающий понижение температуры конца прокатки до 840-890°С, т. е. данна  температура находитс  выше критической точки Лсз :There is also known a method of rolling steel sheets, which involves lowering the temperature of the end of rolling to 840-890 ° C, i.e., this temperature is above the critical point Lss:

Предлагаемый способ прокатки рифленых листов обеспечивает повыщение точности их геометрических размеров. Это достигаетс  путем прокатки рифленых листов, нагретых при первом рифлении до температуры наThe proposed method of rolling corrugated sheets provides increased accuracy of their geometric dimensions. This is achieved by rolling the corrugated sheets heated from the first corrugation to a temperature of

150-200°С выше критической точки АС, а при втором рифлении - в межкритическом интервале температур АС -АС., .150-200 ° C above the critical point of the AU, and during the second corrugation - in the intercritical temperature range of the AU-AC.,.

Например, дл  стали марки 20 такие температуры составл ют: первое рифление 980- 1020°С, второе рифление 800-820°С. Ограничение температуры прокатки при втором рифлении по сравнению с первым рифлением позвол ет уменьшить пластическое течение металла в зоны очага деформации, не контролируемые инструментом, и получить толщину основани  первого рифлени  требуемой точности .For example, for steel grade 20, such temperatures are: first corrugations of 980-1020 ° C, second corrugations of 800-820 ° C. Limiting the rolling temperature during the second groove compared to the first grooves allows to reduce the plastic flow of the metal to the zones of the deformation zone, which are not controlled by the tool, and to obtain the thickness of the base of the first grooves with the required accuracy.

1515

Claims (1)

Формула изобретени Invention Formula Способ гор чей прокатки стальных рифленых листов, включающий прокатку заготовки в рифленых валках за два прохода с изменением направлени  рифлени , отличающийс  тем, что, с целью повышени  точности размеров листа, прокатку заготовки при первом рифлении осуществл ют при температуре на 150-200°С выше критической точкиThe method of hot rolling steel corrugated sheets, including rolling the billet in the corrugated rollers in two passes with changing the direction of corrugation, characterized in that, in order to improve the dimensional accuracy of the sheet, the billet is rolled at the first corrugation at a temperature 150-200 ° C higher critical point АС., , а прокатку при втором рифлении ведут в межкритическом интервале температур Л; - Ас,.AC.,, And rolling during the second corrugation is carried out in the intercritical temperature range L; - Ac ,.
SU2160984A 1975-08-08 1975-08-08 Method for hot rolling steel corrugated sheets SU550185A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU2160984A SU550185A1 (en) 1975-08-08 1975-08-08 Method for hot rolling steel corrugated sheets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU2160984A SU550185A1 (en) 1975-08-08 1975-08-08 Method for hot rolling steel corrugated sheets

Publications (1)

Publication Number Publication Date
SU550185A1 true SU550185A1 (en) 1977-03-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU2160984A SU550185A1 (en) 1975-08-08 1975-08-08 Method for hot rolling steel corrugated sheets

Country Status (1)

Country Link
SU (1) SU550185A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2445179C2 (en) * 2010-06-16 2012-03-20 Общество с ограниченной ответственностью "Северсталь-Проект" (ООО "Северсталь-Проект") Method of hot rolling of strips with one-side corrugation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2445179C2 (en) * 2010-06-16 2012-03-20 Общество с ограниченной ответственностью "Северсталь-Проект" (ООО "Северсталь-Проект") Method of hot rolling of strips with one-side corrugation

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