1．Ironmaking 1
(1)Studies on a Blast Furnace Simulator and High Temperature Properties of Burdens&by Prof.Dr．Shin-ichi KONDO,Mr．Kuniyoshi ISHII and Mr．Yoshiaki KASHIWAYA 1
(2)Determination of Oxygen Potential in Blast Furnace by Means of Oxygen Probe Using Solid Electrolyte&by Prof.Dr．Minoru SASABE(Chiba Institute of Technology) 16
(3)Numerical Analysis of Inner Circumstances of Large Blast Furnace with Pulverized Coal Injection&by Mr．Mamoru KUWABARA,Mr．Jicheng HE and Mr．Prof.Dr．Iwao MUCHI(Nagoya University) 31
(4)Recent Operation of Large-Scale Blast Furnaces in Fukuyama Works&by Mr．Ryoji YAMAMOTO,Mr．Genji NAKATANI and Mr．Ryuichi NAKAJIMA(Nippon Kokan K．K．) 46
(5)Technique of a Large Bell-Less Blast Furnace Operation in Accordance with Energy Circumference&by Mr．Junsaku KURIHARA and Mr．Toshiro SAWADA(Kawasaki Steel Corporation) 60
(6)Model Studies on Burden Movement in Lower Part of Blast Furnace and Metal-Slag Drainage&by Du Hegui,Du Gang(Northeast University of Technology,P．R．C．) 73
(7)Mathematical Modeling of The Blast Furnace with Coal Injection&by Xie Yusheng,Che Xiuzhen and Li Qi(Institute of Chemical Metallurgy Academia Sinica) 82
(8)Industrial Experiment of Soda Injection Treatment on Hot Metal Containing Vanadium&by Lu Wulin,Zhi Shiu,and Li Weili(Central Iron＆Steel Research Institute,Beijing)Yang Zhuanghua(Chengde Iron and Steel Plant) 95
(9)An Unique Stove Process for Obtaining High Blast Temperature with low Caloric Value BF Top Gas&by Dai Jie(Beijing Central Engineering and Research Incorporation of Iron and Steel Industry)Lu Lu-ping(Shandong Provincial Corporation of Metallurgy Industry)Zhang Xing-Zhuan(Jinan Blast Furnace Plant) 104
(10)The Effects of Gangue Minerals and Fluxes on The Quality of Iron Ore Pellets&by Lu Yang(Baoshan Steel Company)Kong Lingtan(Beijing University of Iron＆Steel Technology)W-K Lu McMaster University,Canada 110
2．Steelmaking 129
1)Physical Chemistry of Steelmaking 129
(1)Thermodynamic Study of Fe-Ta Alloys by Means of the Knudsen Cell Mass Spectrometry&by Prof.Dr．Eiji ICHISE and Mr．Ken-ichi HORIKAWA(Kyoto University) 129
(2)Determination of the ActiVity of P2O5 in Slags&by Mass Spectrometry by Prof.Dr．Eiichi KATO,Mr．Shigeru KAMBAYASHI and Mr．Hirotoshi AWAKA(Waseda University) 143
(3)Phosphorus Distribution between CaO-CaF2-SiO2 Melts and Carbon-Saturated Iron&by Mr．Mineo MURAKI,Mr．Hironori FUKUSHIMA and Prof.Dr．Nobuo SANO(The University of Tokyo and Nippon Kokan K．K．) 158
(4)Kinetics of Water Vapor Dissolution in Liquid CaO-SiO2-MgO and Cao-SiO2-TiO2 Slags&by Prof.Dr．Shiro BAN-YA,Dr．Yasutaka IGUCHI and Mr．Seiji YAMAMOTO(Tohoku University and Nippon Steel Corporation) 172
(5)A Study of The Chemical Equilibrium between Arsenic and Calcium in Steel Melt&by Zhu Yuankai,Dong Yuanchi,Peng Yuqiang(Beijing University of Iron＆Steel Technology) 187
(6)A Study on Oxidation Kinetics of Niobium in Liquid Iron&by Ferro-Oxide Containing Slags by Wang Laihua,Tang Zhonghe,Chen Yongding(Central Iron＆Steel Research Institute,Beijing) 198
2)Pretreatment of Hot Metal and Ladle Metallurgy 215
(1)Experiences on Hot Metal Pretreatment and Application at Kure Works,Nisshin Steel&by Mr．Kiyoshi YASUI,Mr．HiroshiTAKAHASHI,Mr．Fumio HOSHI and Mr．Yasushige NIYAGAWA(Nisshin Steel Co．L？d) 215
(2)Recent Improvements of AOD Process for Stainless Refining at Nippon Yakin Kogyo Co,Ltd.&by Dr．Tetsuya WATANABE,Mr．Takeya TOHGE and Mr．Toshiaki KAWAHARA(Nippon Yakin Kogyo ？o.,Ltd.) 228
(3)Water Model Study of Gas Bubb？es'Behaviour and Gas-Liquid Interfacial Area in Gas Injection Process&by Yu-long Guan,Chen-Xin Xu,Yuan-Yi Sheng(Beijing University of Iron＆Steel Technology) 243
3)Steelmaking Processes 254
(1)The Techniques of Combined Blowing in BOF Steelmaking Process&by Mr．Takuo IMMAI,Mr．Kanji EMOTO and Dr．Toshihiko EMI(Kawasaki Steel Corporation) 254
(2)Improvements of Electric Arc Furnace Operation(Supervision of EAF Operation Using Computer System)&by Mr．Goro YUASA,Mr．Kiyohide HAYASHI,Mr．Atsushi UKAI Mr．Yasutake KAWANOBE and Mr．Kenji TSUKUTA(Daido Steel Co.,Ltd) 271
(3)History of the Electric Arc Furnace Operation&by Mr．Nobuaki SUGIYAMA(Sanyo Special Steel Co.,Ltd) 286
(4)Preliminary Study of The Reaction Engineering of The Dephosphorization in The Combined Blowing Converter Process&by Zhang Shu-he(The Third Steelworks of Ma Anshan Iron＆Steel Company) 301
(5)Permeability of Hydrogen Through Molten CaO-SiO2-Al2O3-MgO System&by Liu Peihuan,Feng Qicheng,Xu Yulu and Xu Shizheng (Northeast University of Technology) 312
(6)Dissolution Kinetics of Magnesitic Dolomite and Magnesite-Chrome Refractories in Secondary Steelmaking Slags&by Chen Zhao-you,Wu Xue-zhen,Ye Fang-bao(louyang Research Institute of Refractories) 319
(7)Evaporation Behaviour of Elements During The Large Section Consumable Electrode VAR of Alloy A286&by Fu Jie(Beijing University of Iron＆Steel Technology) 336
(8)Researching Progress of ArsenjC Steel in China&by Li ang Ying Sheng(Guangzhou Steel Works) 347
4)Solidification 358
(1)On-line Measurement of Solidified Shell Thickness and Estimation of Crater End Shape of CC Slabs&by Electromagnetec Ultrasonic Method by Mr．Tadashi ATSUMI,Mr．Takeyuki FUKUDA,Mr．Tohru YOSHIDA and Dr．Katsuhiro KAWASHIMA(Nippon Steel Corporation) 358
(2)Prediction of"A"Segregation in Large Foring Ingot&by Mr．Hitohisa YAMADA,MR．Takashi SAKURAI and Dr．Tomoo TAKENOUCHI(The Japan Steel Works,Ltd.) 373
(3)An Investigation on The Solidification and The Quality of Continous Casting of Small Billets&by Cai Kaike Hou Xiao-an,Zhang Keqiang(Beijing University of Iron＆Steel Technology)Wang Hao,Wang Zhong Yi(Handan Iron＆Steel Works) 385
(4)Influence of Solidification Factors on The Soundness of Ingots&by Wanlin Li,Prof.Dr．Tadayoshi TAKAHASHI and Ken-ichi OHSASA(Beijing University,Sapporo,Japan) 398
(5)An Investigation on The Sticking of Powder Fluxes to The Ingot Mould Wall&by Jin Shan-tong(Beijing University of Iron＆Steel Technology) 410
3．Automation 419
(1)Outline of Automation at Nippon Steel Corporation Focused on Computerization&by Mr．TadashiATSUMI,Mr．Takeyuki FUKUDA and Mr．Satoshi FUJII(Nippon Steel Corporation) 419
(2)Process Control System of Kokura No.2 Blast Furnace&by Mr．Yoshiyuki MATOBA,Mr．Koichi OTSUKA,Mr．Ken MOCHIZUKI and Mr．Yasunaga UENO(Sumitomo Metal Industries,Ltd.) 433
(3)The Computer Controlled Slab Caster at Kakogawa Works&by Mr．Masakazu Taguchi and Mr．Yoshio OHNISHI(Kobe Steel,Ltd.) 448
(4)The Model Identification of Automatic Control in BOF Steelmaking&by Pan Dehui,Zhao Xinan(Northeast University of Technology) 465
(5)The Slag Forming Coefficient and System Engineering in LD Converter Steelmaking&by Liu Xjang guan and Li Jiluan(Pan Zhihua iron＆Steel Company) 475
(6)Automation of BF Process Control&by Wang Ruilan(Shoudu Iron＆Steel Company) 483