1Brief Introduction and Comparison of New Sintering ProcessGUO Huiliang, HU Ziming, QI Zhenbao, LI Tie, GU GuohuaProduction Technology1-32Practice of Smelting Low Silicon Hot Metal on No.25100 m3 Blast Furnace at Rizhao Branch of Shangdong Steel GroupWANG Zaifeng, LI Yang, HAN Yang, ZHAO Dongfang, MA JinyunProduction Technology4-53Long-term Practice of Low-silicon and High-quality Production of No. 4 Blast Furnace in Laiwu SteelGONG XuefengProduction Technology6-7,104Process Practice of Oxygen Content Control for Converter Bearing SteelYU Hongbo, LIU Jie, ZHU BaoquanProduction Technology8-105Development of Hot Rolled Round Steel QG-1 with Corrosion Resistance and High Performance used for Oil Well TubeZHAO Qiang, WU Jiawei, CUI Yanbin, ZHANG Lili, LIU HuanProduction Technology11-12,176Research and Development of New Low Cost Cr-B Series NM400 Wear Resistant Steel PlateGU Daqing, MA HengProduction Technology13-177Effect of Rough Rolling Exit Temperature on Properties of 600 MPa Automobile Frames SteelLIU Min, CHEN WanhuaProduction Technology18-19,238Development and Application of SWRCH22A Cold Heading Steel Wire Rod for Self Tapping ScrewHE Liguo, YAN Jinbao, LIU Chunying, MA Mingming, ZHANG JunliProduction Technology20-239Air Separation Engineering Design Features of Rizhao Iron and Steel Premium BaseGUO Qiang, CHEN ShengwenProduction Technology24-25,2810Production and Development of 20Cr13N Martensitic Stainless Steel for Cutting ToolsWANG Hongxia, HE Min, QI LeiProduction Technology26-2811Contrastive Analysis of Pb Block and Newman Block used in Qingdao Special Steel Blast FurnaceWU Yipeng, PAN Jiguo, LIU Yumeng, YAN Hongyi, LIN ZhisenTest Research29-3012Laboratory Study on the Corrosion Resistance of a Weathering Structural Steel for BridgesREN JiyinTest Research31-3513Analysis of Microstructure and Mechanical Properties of Lead-Free Free-Cutting Steel for Ball Seat of Ballpoint PenTIAN ChaoTest Research36-38,4114Defect Analysis of the Failure Sample of Hot Rolled Ribbed Steel BarZHANG Jijun, ZHAO YanfangTest Research39-4115Cracking Analysis and Solution Technology Test of 2507 Super Duplex Stainless SteelWU Yuelong, CHEN Kun, WANG JunhaiTest Research42-43,4616Effect of Heat Transfer Coefficient on the Hot Rolling Process of Low Carbon Steel Based on DEFORM-3DLI Qiyao, HU YukunTest Research44-4617Determination of Silica in Zinc Concentrate by Potassium Fluorosilicate TitrationDING XiaotongTest Research47-48,5118Explore the Effect of Cyquest on Whiteness of Aluminum Hydroxide Produced by Bayer ProcessNIU Pingzhao, WANG Jiawen, NING Yangdong, GUO XiushuangTest Research49-5119Application of Separate Bin Feeding Control System of Sintering Proportioning in Ironmaking Plant of Laiwu SteelZHAO XiangxuanEnergy Saving and Pollution Reducing52-5320Application of Ultra-high Water Material Filling Technology to Realize Zero Discharge of Tailings in ConcentratorXI Zhufeng, WANG Zheng, ZHANG Fengyi, WANG Ming, WANG JunxuEnergy Saving and Pollution Reducing54-55 