发明名称 |
MANUFACTURING METHOD OF PLATES FROM LOW-ALLOY PIPE STEEL WITH STRENGTH CLASS K60 |
摘要 |
FIELD: metallurgy.SUBSTANCE: slab blank with the specified chemical analysis is subject first to roughing rolling in the range of 990÷1110°C at regulation of particular reductions of not less than 12%; then, to finishing rolling from rolling beginning temperature in the range of 780±10°C and rolling end temperature equal to 720±10°C at single reduction in the last finishing pass of 6-8%, and to accelerated cooling after finishing rolling at the plate cooling speed of 10-16°C/sec to temperature of 590±15°C.EFFECT: providing in hot-rolled stock from microalloy steel of pipes with thickness of 24-28 mm of identical increased mechanical properties uniformly distributed across the plate section, which correspond to strength class K60.2 tbl, 1 ex |
申请公布号 |
RU2479638(C1) |
申请公布日期 |
2013.04.20 |
申请号 |
RU20120105869 |
申请日期 |
2012.02.17 |
申请人 |
OTKRYTOE AKTSIONERNOE OBSHCHESTVO "MAGNITOGORSKIJMETALLURGICHESKIJ KOMBINAT" |
发明人 |
DENISOV SERGEJ VLADIMIROVICH;GOLUBCHIK EHDUARD MIKHAJLOVICH;SMIRNOV PAVEL NIKOLAEVICH;STEKANOV PAVEL ALEKSANDROVICH |
分类号 |
C21D8/02;C22C38/38;C22C38/42 |
主分类号 |
C21D8/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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