SU550185A1 - Method for hot rolling steel corrugated sheets - Google Patents
Method for hot rolling steel corrugated sheetsInfo
- 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
Links
Landscapes
- Control Of Metal Rolling (AREA)
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)
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
ID=20628147
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)
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 |
-
1975
- 1975-08-08 SU SU2160984A patent/SU550185A1/en active
Cited By (1)
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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