发明名称 METHOD OF PRODUCTION OF THIN SHEET COLD ROLLED STEEL
摘要 FIELD: metallurgy. ^ SUBSTANCE: method consists in cold rolling, annealing and pinch-rolling of strips, upon which strip is produced of h=0.7-2.0 mm thickness out of steel containing, wt %: 0.10-0.15 of carbon and 0.05-0.17 of silicon; annealing is carried out in bell-type furnaces with nitrogen-hydrogen protective atmosphere at temperature 690C by bench thermocouple during 25-53 hours depending on weight of lower roll in pile and width of strip; then strip is conditioned under hood with turned-off burners during 2-6 hours; further strip is unpacked at 130C by same thermocouple, while pinch-rolling is carried out with reduction within 0.7-1.5%. ^ EFFECT: production of strip steel with required strength properties. ^ 1ex
申请公布号 RU2369645(C1) 申请公布日期 2009.10.10
申请号 RU20080134743 申请日期 2008.08.25
申请人 OTKRYTOE AKTSIONERNOE OBSHCHESTVO "MAGNITOGORSKIJMETALLURGICHESKIJ KOMBINAT" 发明人 LISICHKINA KLAVDIJA ANDREEVNA;POLETSKOV PETR PETROVICH;KOCHNEVA TAT'JANA MIKHAJLOVNA;ANTIPANOV VADIM GRIGOR'EVICH;MALOVA NINA IVANOVNA
分类号 C21D8/02;C21D9/48 主分类号 C21D8/02
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