RU2011110503A - METHOD FOR PRODUCING HOT-BROADBAND STEEL - Google Patents
METHOD FOR PRODUCING HOT-BROADBAND STEEL Download PDFInfo
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- RU2011110503A RU2011110503A RU2011110503/02A RU2011110503A RU2011110503A RU 2011110503 A RU2011110503 A RU 2011110503A RU 2011110503/02 A RU2011110503/02 A RU 2011110503/02A RU 2011110503 A RU2011110503 A RU 2011110503A RU 2011110503 A RU2011110503 A RU 2011110503A
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- manganese
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- nickel
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- Heat Treatment Of Sheet Steel (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
Способ производства горячекатаного широкополосного проката, включающий горячую прокатку, ускоренное охлаждение полос с заданными температурами и с последующей смоткой их в рулоны, отличающийся тем, что для получения из стальной полосы ферритно-мартенситной структуры с содержанием 0,09 - 0,11 мас.% углерода, 0,37 - 0,65% кремния, 1,25 - 1,60% марганца, 0,48 - 0,57% хрома и 0,02 - 0,1% никеля при соотношении проката σв=450 - 1000 Н/мм2, между предварительным и заключительным охлаждениями осуществляют выдержку проката на воздухе, при этом температуру металла в последнем проходе выдерживают выше температуры Аr3 на 0 - 25°С, температуру после предварительного ускоренного охлаждения обеспечивают ниже Ar1, на величину Δуо=-0,0005σв 2+0,99σв-342,84, а температуру смотки выдерживают ниже Ar1, на величину Δсм=-0,0013σв 2+2,33σв-496,5, вычисляя величины Аr3 и Ar1 по формулам: ! Аr3=879,2-94,24[С]-21,13[Si]-25,56[Mn]+47,71[Cr]+16,44[Ni]; ! Ar1=729,2-9,24[С]+12,13[Si]-15,56[Mn]+17,71[Cr]-46,44[Ni], ! где [С], [Si], [Mn], [Cr], [Ni] - вышеуказанное содержание элементов в стали, соответственно, углерода, кремния, марганца, хрома, и никеля, мас.%. A method for the production of hot-rolled broadband products, including hot rolling, accelerated cooling of strips with specified temperatures and their subsequent winding into rolls, characterized in that for producing a ferritic-martensitic structure from a steel strip with a content of 0.09 - 0.11 wt.% Carbon , 0.37 - 0.65% silicon, 1.25 - 1.60% manganese, 0.48 - 0.57% chromium and 0.02 - 0.1% nickel with a rolling ratio σв = 450 - 1000 N / mm2, between preliminary and final cooling, the rolling is held in air, while the temperature of the metal in the latter the passage is kept above Ar3 temperature by 0 - 25 ° С, the temperature after preliminary accelerated cooling is provided below Ar1, by Δуо = -0,0005σв 2 + 0,99σв-342.84, and the winding temperature is kept below Ar1, by Δcm = -0.0013σв 2 + 2.33σв-496.5, calculating the values of Ar3 and Ar1 according to the formulas:! Ar3 = 879.2-94.24 [C] -21.13 [Si] -25.56 [Mn] +47.71 [Cr] +16.44 [Ni]; ! Ar1 = 729.2-9.24 [C] +12.13 [Si] -15.56 [Mn] +17.71 [Cr] -46.44 [Ni],! where [C], [Si], [Mn], [Cr], [Ni] is the above content of elements in steel, respectively, of carbon, silicon, manganese, chromium, and nickel, wt.%.
Claims (1)
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Application Number | Priority Date | Filing Date | Title |
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RU2011110503/02A RU2476278C2 (en) | 2011-03-18 | 2011-03-18 | Method of producing hot-rolled wide-strip steel |
Applications Claiming Priority (1)
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RU2011110503/02A RU2476278C2 (en) | 2011-03-18 | 2011-03-18 | Method of producing hot-rolled wide-strip steel |
Publications (2)
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RU2011110503A true RU2011110503A (en) | 2012-09-27 |
RU2476278C2 RU2476278C2 (en) | 2013-02-27 |
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RU2011110503/02A RU2476278C2 (en) | 2011-03-18 | 2011-03-18 | Method of producing hot-rolled wide-strip steel |
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RU (1) | RU2476278C2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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RU2676543C1 (en) * | 2018-01-09 | 2019-01-09 | Публичное акционерное общество "Северсталь" (ПАО "Северсталь") | Hot-rolled products from the structural steel manufacturing method |
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Publication number | Priority date | Publication date | Assignee | Title |
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NL1007731C2 (en) * | 1997-12-08 | 1999-06-09 | Hoogovens Staal Bv | Method and device for manufacturing a ferritically rolled steel strip. |
JP4341396B2 (en) * | 2003-03-27 | 2009-10-07 | Jfeスチール株式会社 | High strength hot rolled steel strip for ERW pipes with excellent low temperature toughness and weldability |
RU2281818C1 (en) * | 2004-12-31 | 2006-08-20 | Открытое акционерное общество "Северсталь" | Process for making strip of chrome-manganese-vanadium steel |
RU2358024C1 (en) * | 2007-09-20 | 2009-06-10 | Открытое акционерное общество "Северсталь" (ОАО "Северсталь") | Method of production of strips out of low alloyed steel |
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