1Production Practice of Sintered Thick LayerLI Ping, LI Changwu, ZHANG WenzhengProduction Technology1-22Application Practice of High Proportion Block Ore in 1 080 m3 Blast FurnaceXIE Songbo, CHEN BeiProduction Technology3-53Practice of Quick recovery of Blast Furnace Tuyere Slag Pouring ConditionCHU Yunxiang, WU Yu, GAO ZhengProduction Technology9-114Development of Very Thin Cold Rolled Steel Strip for Electronic ComponentsHOU Yuanxin, ZHAO Liming, QI Ziyan, LIU Junyan, QI ZengyanProduction Technology12-13,165Development of 45Mn2R Sulfur-containing Free Cutting Steel in Laiwu SteelLIU YongchangProduction Technology14-166Reason Analysis and Countermeasure for Over-standard Clearance at End of Transverse Rib of Hot-rolled Ribbed BarsSHAO Jiping, MA Jiabo, NIE Zhenzhong, SHAO JundaProduction Technology17-197Optimization and Equipment Improvement of Three-strands Splitting Rolling Pass System for Φ18 mm Hot-rolled Ribbed Steel BarDONG YoubaoProduction Technology20-218Improvement Measures of Technology for Increasing Speed and Efficiency of Rolling Production Line in Kunyu Bar WorkshopSHEN Xiaoer, GUO JinnianProduction Technology22-239Study on Erosion Resistance of Corundum-spinel Materials in HISMELT SRV EnvironmentCHE Lianfang, FU Wei, WU Fengqiao, CAI Guoqing, ZHANG Xiaoxu, QIN Jiantao, LI HuiwenTest Research24-27,3110Development and Application of Special Impermeable High Alumina Bricks for Large Aluminum Melting FurnaceWANG Minggang, CHE Lianfang, SHI Chenglong, GAO Rui, BAI Mingxun, ZHANG ZhihaoTest Research28-3111Process Principle and Production Practice of Rotary Hearth FurnaceSHENG Weihu, YANG Chunshan, ZHENG Lei, SHEN Fei, WANG ShiyongTest Research32-35,3912Current Situation of Electric Furnace Steelmaking and Its Development Trend under Background of"Double Carbon Policy"ZHOU Ping, WANG Nianxin, ZHANG Xuemin, LI Changxin, WANG ChengzhenTest Research36-3913Corrosion Resistance of 7075 Aluminium Alloy with Different Grain Sizes in 3.5％NaCl SolutionWANG Yi, SUN Zonghui, HAN Jie, LIU Chengbao, XU RongchangTest Research40-4214Effect of Controlled Rolling and Cooling Process Parameters on Microstructure and Properties of 460 MPa High Strength and Toughness Marine Steel Plate with Different Microalloy SystemsLI Yan, MA Heng, WANG Zhongxue, LI GuangyanTest Research43-4615Effect of Ball Milling Time on Properties of Recycled Cemented CarbideLI Minghua, LI BingliangTest Research47-4816Research on Hydrogen Embrittlement Sensitivity of CR1500HF Hot-Formed SteelLIU Peixing, MENG Xianming, LI Hongliang, WANG DongpoTest Research49-5017Determination of Arsenic and Stibium in Metallurgical Ferric Dust by Hydride Generation-Atomic Fluorescence SpectrometryDING XiaotongTest Research51-5318Control Practice of Banded Structure of 25CrMo4 Gear Steel Produced by Continuous Casting and RollingJI YuzhongTest Research54-5619Application of Visual Recognition System in Shear Line Sizing MeasurementTIAN Zunchao, QI Xiaotao, LI Linlin, ZHAO LiangInformation Construction57-5820Optimization of DEH Control System for Gas Power GenerationSU Peng, WANG Huihua, WU KangInformation Construction59-60 