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111转炉连铸生产石油管坯45MnCrMo的试制9-1

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转炉连铸生产石油管坯 转炉连铸生产石油管坯 45MnCrMo 钢的试制 的试制 卢秉军 禹文涛 (辽宁本溪,117000,本钢板材股份有限公司技术中心特钢研究开发所) [摘要 摘要] 介绍了转炉+LF+RH+连铸+连轧生产石油管坯 45MnCrMo 钢的生产工艺。 产材规格¢200, 标准成分为 (%: 0.43~0.48C, 0.15~0.35Si,0.95~1.15Mn,0.95~1.15Cr,0.20~0.25Mo) 。通过工艺控制,转炉冶炼生产的 45MnCrMo 钢纯净度高,残余元 素及气体含量低,完全满足石油管坯用钢要求。本钢的转炉+LF+RH+连铸+连轧工艺可以进行其它高均质纯净特殊钢的生产。 [关键词 关键词] 转炉 RH 连铸 45MnCrMo Trial production of 45MnCrMo steel slabs for petroleum pipeline steel by means of converter plus continuous casting process LU Bingjun YU Wentao (BenxiLiaoning, 117000,Special Steel Research and Development Institute of Technology Center of Bengang Steel Plates Co., Ltd. ) Abstract: This paper introduces the production technology for producing 45MnCrMo steel slabs for petroleum pipeline steel by means of converter + Lf + RH + continuous casting + hot rolling route. The product size is ∮200 and standard compositions are (%: 0.43—0.48C; 0.15—0.35Si; 0.95—1.15Mn; 0.95—1.15Cr; 0.20—0.25Mo) respectively. Through technological control, the 45MnCrMo steel produced by converter smelting has high purity and low residual elements and low gas content. ......

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