1Research and Development of the Preparationson Casting Steel/Iron Matrix Wear-resistant CompositesCHEN Dedong, YUAN Junping1-32Study on Causes of Burrs and Deburring Technology in the Powder Metallurgy PartsWU Song, CHEN Qiling, MA Shaobo, LI Qilong, XU Wei4-63Hearth Erosion Analysis and Countermeasures of Jinan Steel’s 1750 m3 BF in the Later Stage of CampaignZHANG Leizhong, ZHANG Guoying, CHU Qiang, WANG Cong, WANG Hongrui7-94Practice of Increasing PCI Rate in Ma Steel’s No.2 BFHAN Guangyou, WANG Zhitang10-125T he Practice ofIncreasing T aphole Service Life on 60tC onverterZENG Sibao, ZHANG Liwu13-14,166CauseA nalysisand Im provem entofPoorFluidity ofM olten Steel in C ontinuous C asting M achineZHANG Fei15-167D evelopm entofR olling T echnology ofC heckered Plate in J inan SteelCAO Jinsheng17-188O ptim ization A nalysisand Im provem entofG uide and PassSystem of C ontinuous R olling U nitWANG Zongbin19-20,239Optimization Analysis and Improvement of Guide and Pass System of Continuous Rolling UnitZHAO Lei, LIU Ning, LI Wen, WANG Kezhu21-2310A pplication ofH igh Proportion Sierra Leone O re in Sintering Production ofJ inan SteelCHEN Shulong24-25,2811Analysis and Improve of Testing Technology of Transformer Winding DeformationLIN Jing, YANG Haitao26-2812Analysis and Countermeasures on Influence Factors of Internal Quality of Hot Rolled GCr15 Bearing Steel BarSHI Qiuying, LU Dengyao29-31,3413Development of Anti-low Temperature Valve with High Impact Energy Resistance and Hydrogen Sulfide ResistanceLü Suyu, PANG Tao32-3414QualityCom parison and A nalysisbetween South A fricaOreand PB OreYANG Cheng, YANG Yun35-3615Experim entofD esulphurization T echnology by C arbotherm ic R eduction M agn esia in V acu u mWANG Changbao, WU Haibin37-3816Thermodynamic Analysis of Basic Chemical Reactions of Rotary Hearth Furnace Process SystemJING Guangmin39-4017Phase Transformation and Second-phase Precipitation Behavior of Ti Microalloyed Steel during Continuous Cooling after Hot DeformationHAN Jie, LIU Yanlin, SUN Qianshuang, LI Junyu41-43,4718Rapid United Detection of W, Mn, Mo, Co, Cu, V and Cr in High-speed Steel RollFU Shigang, WANG Junxiu, ZHANG Xiaoyan, WANG Yanqin, WEI Xinhui44-4719Smelting Practice of Economic Ore in Laiwu Steel’s 1080 m3 BFTIAN Yuanfeng, WANG Fengqiao, YIN Yuwei, LI Xiancheng, YIN Baolong48-4920U tilization ofR esidualH eatfrom F lue G as ofC oke O venLI Xunming50-52 