2011 Vol. 32, No. 2

Vanadium and Titanium
Anatase TiO2 Nanoparticles Synthesized Using the Hydrothermal Method and its Character
Fu Xiaoming, Xu Yan, Yang Zaizhi, Liu Zhaowen
2011, 32(2): 1-4.
Abstract(119) PDF(4)
Abstract:
Anatase TiO2 nanoparticles are synthesized with Ti(SO4)2 as titanium source and stronger ammonia water as precipitant using the hydrothernal method.The samples are characterized by XRD,SEM and TEM.The results showed that the change of size of anatase TiO2 particles is not obvious with increase of th...
Solvent Extraction of Titanium by N1923-isopentanol from Chloride Media of Different Concentration
Mao Xuehua, Liu Daijun, Zhang Peng
2011, 32(2): 5-9.
Abstract(65) PDF(4)
Abstract:
Solvent extraction of titanium by N1923-isopentanol from chloride media of different concentration was investigated.The effects of the concentration of HCl,pre-acidification,the concentration of isopentanol,the reaction temperature,the reaction time,O/A and the diluent were studied.It is showed that...
Comprehensive Utilization
The Latest Developments of Integrated Utilization on Panzhihua High Titanium-bearing BF Slag
Li Xinghua, Pu Jiangtao
2011, 32(2): 10-14.
Abstract(76) PDF(2)
Abstract:
The latest research on Panzhihua high titanium-bearing BF slag as "selective enrichment and separation after metallurgic modified","preparation of TiCl4 by high temperature carbonization and low temperature selective chlorination","preparation of Ti-Si alloy by plasma smelting reduction","directmine...
Extracting the Scandium from the Chlorine Slagging
Li Liang
2011, 32(2): 15-19.
Abstract(70) PDF(1)
Abstract:
Selecting the chlorine slagging after concentration as a raw material,the influence of the leaching sour type,raw material granularity,the leaching acid concentration,the leaching liquid solid mass ratio,the leaching temperature and the extraction time on the scandium leaching rate have been studied...
Influence of Cooling Intension on Microstructure and Content of f-CaO in Steel Slag
Zhang Yuzhu, Lei Yunbo, Li Junguo, Xing Hongwei, Han Zhijie, Long Yue
2011, 32(2): 20-24.
Abstract(62) PDF(2)
Abstract:
The microstructure and content of f-CaO in slow cooling slag,gas quenching slag and hot closed treatment slag have been investigated through SEM and chemical analysis.The dispersed f-CaO in steel slag was mainly formed during the process of primary crystallization of C2S and C3S,formation of RO phas...
Technical Discussion
Finite Element Modeling of Steady Temperature Field of Molten-Salt Chlorinator
Ju Dianchun, Chen Zhiyong, Qing Yang, Yan Dingliu, Li Xiangyang
2011, 32(2): 25-28.
Abstract(86) PDF(2)
Abstract:
The heat transfer characteristics of No.1 molten-salt chlorinator of Jinzhou Titanium Co.,Ltd.was analyzed,and a finite element model of steady temperature field of molten-salt chlorinator with ANSYS software was established.The results showed molten-salt chlorinator shell temperature was at 30~50℃,...
Temperature Characteristics of Dephosphorization of Steelmaking Slag in Microwave Heating Process
Ai Liqun, Zhou Chaogang, Lü Yan, Hou Peng
2011, 32(2): 29-32.
Abstract(77) PDF(1)
Abstract:
The steelmaking slag dephosphorization experiments were carried out by microwave heating and carbon thermal reduction methods.The temperature characteristics of steelmaking slag were researched under the condition of the laboratory.The experiment results indicated that different steelmaking slag use...
Study on Mechanical Energy Aided Aluminizing of Precipitation Hardening Stainless Steel
Zhu Wangwei, Yin Tiezhi, Wang Xiangdong, Li Jian, Chen Xiaoping, Mi Fengyi, Zhu Zhibing
2011, 32(2): 33-38.
Abstract(61) PDF(1)
Abstract:
Precipitation hardening stainless steel has been aluminized in the low temperature by the process of mechanical energy aided aluminizing.This technique produce layers with thickness of 11μm and appear to be homogeneous for 10 h treatment at 500℃,base on keeping the mechanical properties of matrix ma...
Trial Production of High Chromium Tube Steel by Convert-bloom Continuous Casting Process
Chen Tianming, Chen Yong, Deng Jun, Yang Senxiang, Chen Liang, Li Qingchun, Ceng Jianhua
2011, 32(2): 39-42.
Abstract(62) PDF(4)
Abstract:
In consideration of the composition characteristics and quality requirements of L80-3Cr high chromium steel,the rational alloying system,temperature system and key technologies of continuous casting process are employed in the development of a full-line operation of LD-LF-RH-Bloom continuous casting...
Study on Recrystallization Temperature of Ti Microalloyed High Strength Steel in Cold-Rolled Strips
Lü Shengxia, Chen Shi, Mao Xinping, Wang Xi, Zhu Dayan, Huo Xiangdong
2011, 32(2): 43-47.
Abstract(76) PDF(2)
Abstract:
The recrystallization temperature of Ti microalloyed high strength steel in cold rolling were investigated by means of microhardness testing,metallographic structure observation and isothermal annealing for half an hour.The results shown that the regulations of recrystallization were basically the s...
Determination of Optimal Recrystallization Annealing Temperature of Nb-Ti Microalloying High Strength IF Steel
Wang Minli
2011, 32(2): 48-52.
Abstract(84) PDF(4)
Abstract:
The Nb-Ti microalloying high strength IF steel sheet was used to study the effect of annealing temperature on the microstructures,mechanical property and textures.The experimental results showed that experimental steel was incomplete recrystallization when annealing temperature is 750℃,and the recry...
Corrosion Mechanism of MgO-C Refractory by Converter Vanadium Recover-slag
Wang Guangen, Wang Yu, Xie Bing, Li Xinsheng, Guo Xu, Li Xiaojun
2011, 32(2): 53-57.
Abstract(83) PDF(2)
Abstract:
To research the influence of the oxides in converter vanadium recover-slags on the corrosion behavior of MgO-C bricks,the samples of MgO-C bricks were immersed in converter vanadium recover-slags with different levels of V2O3、FeO、TiO2、MnO、MgO at converter vanadium recover temperature,the relation be...
Optimization of 150 tons Vanadium Extraction Oxygen Converter's Flow Field
Tang Wendan, Li Jingshe, Chen Yongfeng, Tian Dongfang
2011, 32(2): 58-62.
Abstract(56) PDF(2)
Abstract:
The effect of the lance level,the flow rate of top lance,the flow rate of bottom blowing and the bottom tuyeres' configuration on mixing time of fluid in 150 t vanadium extraction converter has been studied and optimized by water model experiment with similarity ratio 1:6.The best blowing case is th...
Choice and Optimization of EMS Parameters of Thin Mold
Guo Hao, Jin Yonglong, Wu Feipeng, Guo Xiangjun
2011, 32(2): 63-68.
Abstract(73) PDF(1)
Abstract:
EMS technology for the thin mold has been developed,the metallurgical characteristics and the corresponding actual results of electromagnetic stirring have been measured to select specific economic and reliable process parameters.Compared the optimized internal quality effects of the slab with or wi...
Production Technology Development for Low-carbon Bainitic Steel CW590L
Feng Shaoqiang, Huang Bin, Luo Youyuan, Shang Chengjia
2011, 32(2): 69-73.
Abstract(71) PDF(2)
Abstract:
Through the cooperation with technology institutions,the development of low-carbon bainitic steel 590L grade is studied in the laboratory.The main work is composition design and CCT curve test of steel.According to the laboratory research results and combined with the 950 production line situation o...
Production Practice
Effects of Soft Blowing Time on Behavior of Nonmetallic Inclusions after Calcium Treatment in X80 Pipeline Steel
Li Qiang, Wang Jian, Wang Xinhua, Li Haibo, Qu Honghui, Jiang Min, Wang Wanjun, Zhu Guosen
2011, 32(2): 74-78.
Abstract(82) PDF(2)
Abstract:
In the present work,effects of soft blowing with argon after RH treatment on inclusion properties for pipeline steel X80 were investigated.The results showed that the total oxygen content could be significantly reduced after 25 minutes' blowing.The inclusions of above 6 μm in size were almost comple...
Research for Control of Sulphur Content in Smelting Process of Electrical Steel
Qing Jiasheng, Yuan Hongwei, Yang Senxiang, Li Jianquan, Li Qingchun, Huang Denghua
2011, 32(2): 79-83.
Abstract(76) PDF(2)
Abstract:
The resulfurization and the change of sulphur content in production of electrical steel is analyzed.The targeted measures have been taken,such as increase the loaded quantity of liquid iron,quartz sand replaces the composite slagging agent in the converter and RH desulfurization to decrease the sulp...
2011, 32(2): 84-86.
Abstract(70) PDF(1)
Abstract: