1Low Silicon Production Practice of Laiwu Steel’s Big BF in High Slag RatioLANG Dahui1-32Analysis of the Furnace Condition Change of Jinan Steel’s 3 200 m3 BFWEN Yan, LI Lei4-5,103Analysis on the Management Mode of Prolonging BF Regular Overhaul CycleYUAN Xia, DONG Mei, LANG Dahui6-74Protection Casting Practice and Analysis for Profiled Billet Continuous Casting MachineYANG Zhijie, SONG Yuqing, SHI Lei8-105Development of Offshore Platform Steel Plate with Grade E550ZHANG Jingwen, LIU Xiumei11-136Experiment and Production of 42CrMo(Ni)High Toughness Steel for BoltHAI Yan, MU Jingfei, YU Hongbo14-167Effects of Production Process on the Microstructure and Mechanical Properties of 65Mn Cold-rolled StripQI Weiwei17-198Cause Analysis and Countermeasures of Bubbles in Hot-rolled Stainless Steel Composite PlateJIN Jianbing20-229Core Collapse Defect and Solutions in Development of Extremely Thin Galvanized SubstrateWANG Le23-2410Research on Pressure of High-pressure Water Descaling Machine and Wire Surface DefectsJIANG Jun, LI Maimai, YAN Liang, CAO Jianmin, GUAN Yanhua25-26,3311Behavior Analysis of Nitrogen Content Increasing in Low Alloy Steel Smelting ProcessZHANG Fan, FAN Zhijin, DING Liquan27-29,3312Distribution of Carbon in Retained Austenite Before and After Deformation of TRIP SteelLIU Li30-3313Research of Rolling Process for Thin High Strength Hull Structural SteelLIU Zetian, LU Bin, HUI Xin, DONG Ruifeng, MA Yonglin34-35,3814Experimental Study on the Influence of Sintering Properties of S Ore Containing High-aluminumZHOU Xiaohui36-3815Diagnostic Test on Low-temperature Tempering Ability of a Naked-flame Normalizing Furnace at 150 ℃ TemperatureYANG Chao, SONG Zhonghua, DING Cuijiao, OUYANG Degang, HAN Bin39-40,4316Defect Analysis and Improvement of Continuous Casting Slab for Limit Thickness Steel PlateLI Hongwen41-4317Experiment for Rapid Detection of the Modification Effect on Al-Si AlloyFANG Ligao, PAN Meiman44-45,5318Failure Analysis on the Tube Explosion of Two-stage SuperheaterCHEN Xiaoxiao, CONG Hongmei, GAO Hongji46-4719Discussing of Cascade Utilization from Waste Heat in BF Slag Flushing WaterGAO Yuanjun48-4920Application and Improvement of Hot Closed Treatment Technology of Converter SlagXIAO Fei, XUE Mingquan, XUE Minghao, HOU Junkun, MA Qingwen50-51 