1Investigation and Practice of High Coal Ratio Boundary in 1 350 m3 Shiheng Special Steel Blast FurnaceWANG Liyong, CHEN Hongjiao, ZHANG BoProduction Technology1-42Optimization of Nitrogen Control Process for Stable Yield Strength of HRB400E-1 SteelMIAO Yongkang, WEI JianfengProduction Technology5-7,113Production Practice of Smelting Process Optimization for IF SteelZHANG Yanlong, ZHU YihengProduction Technology8-114Process Optimization and Practice for Improving Head and Tail Width Accuracy in 2 050 mm Hot RollingTANG Rihui, WEN Xiong, XU Pengfei, LI HeProduction Technology12-14,195Technical Analysis and Development of Reducing and Sizing Mills for BarsCAO MinghuiProduction Technology15-196Trial Production of Non-quenched and tempered Steel F42MnV Round Bar for Engineering Machinery ShaftWANG Huiyu, LI Xiangcai, LU ShuyiProduction Technology20-22,277Development of the Rolling Process for Superstandard Bar with a Diameter of 320 and 330 MillimetersZHANG Yongan, ZHU Baoquan, LIN Tao, CHENG MinghuaProduction Technology23-278A Study on the Carbon Footprint Accounting of Metallurgical Oxygen Based on the Life Cycle Assessment MethodZHANG Qi, GUO Jun, QI YinghuanTest Research28-329Development of LZ-75 High Aluminum Brick Fired at Low TemperatureWANG Linfeng, JING XiangjiaTest Research33-3610Analysis of the Causes of Surface Defects on 40Cr ForksHAN Xiaowei, ZHAO Xiaoping, YANG XiaocaiTest Research37-4011Research Progress and Experimental Evaluation of Refining Process Technology for High-Impurity Crude SilverYANG Shaobo, XU Jianying, WANG Xueshuang, DING Zhichao, WEN YongkunTest Research41-4312Determination of Silicon Dioxide Content in Slag by Potassium Fluorosilicate Precipitation Titration MethodYE Junying, DU QianqianTest Research44-4613Research on Patent Competition Pattern of Smelting Reduction ProcessFU JingEnergy Saving and Pollution Reducing47-50,5514Research on Low-Carbon Ironmaking Technology Approaches Current Challenges and Development StrategiesGUO HuiliangEnergy Saving and Pollution Reducing51-5515Production Practice of Comprehensive Utilization of Flue Gas in the Medium and Low Temperature Section of Annular CoolerZHANG XiaolongEnergy Saving and Pollution Reducing56-5916Key Technology Analysis and Practice of Strip Steering Control in Continuous Annealing FurnaceLU Bingxi, TIAN Hu, WANG Yongxin, WANG Haiyang, WANG DongInformation Construction60-62,6917Development and Application of Online Monitoring System for Vibration Quality of Slab CrystallizerZHAO Lifeng, CHENG Yongsheng, DONG Hui, WANG JikunInformation Construction63-65,6918Finite Element Analysis and Research on Large Ladle Turret and Key ComponentsZHANG Xifeng, LIANG Zifu, XU Jiang, ZENG Jing, LI WuhongInformation Construction66-69 