2014 Vol. 35, No. 4

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Separating and Extracting of Vanadium and Titanium
Research of Vanadium Slag Roasting Technology by Oxygen-enriched Calcium Method
Fu Zibi, Peng Yi, He Wenyi, Gao Guanjin, Shen Biao, Lu Xiaolin
2014, 35(4): 1-5. doi: 10.7513/j.issn.1004-7638.2014.04.001
Abstract(91) PDF(2)
Abstract:
According to the problems of sintering and ringing in rotary kiln caused by the high temperature during roasting the vanadium slag with calcium,the roasting dynamic conditions were enhanced and the roasting temperature was reduced by increasing the oxygen content in the intake air.Both of the labora...
Vanadium Slag Calcium Roasting Process Enhanced by Borocalcite
Tao Zhangyuan, Yu Yongbo, Liu Zuohua, Du Jun, Fan Xing
2014, 35(4): 6-13. doi: 10.7513/j.issn.1004-7638.2014.04.002
Abstract(89) PDF(1)
Abstract:
Converter vanadium slag contains TiO2,Al2O3 and silicate.It leads to the formation of coating layer outside the vanadium-iron spinel phase during the roasting process,which has adverse effects on the oxidization of low valence vanadium and decreases the leaching rate of clinker.In order to improve t...
Effects of Iron on the Acid Leaching for Clinker of the Vanadium Slag by Calcium Roasting
Lu Xiaolin, Fu Zibi, He Wenyi, Shen Biao, Yin Danfeng, Wang Chunqiong
2014, 35(4): 14-19. doi: 10.7513/j.issn.1004-7638.2014.04.003
Abstract(89) PDF(2)
Abstract:
Effects of the factors including iron content of clinker,pH and time on the acid leaching for the clinker of vanadium slag by calcium roasting were researched to resolve the problems of blackening for the leaching solution and decreasing of the leaching rate caused by the iron in the clinker.The res...
Influences of Coating Methods on Properties of Titanium Dioxide
Wu Jianchun, Li Li, Chen Xinhong, Ren Yaping
2014, 35(4): 20-23,31. doi: 10.7513/j.issn.1004-7638.2014.04.004
Abstract(118) PDF(6)
Abstract:
The influences of coating methods of NaAlO2-H2SO4 parallel flow,NaAlO2-Al2(SO4)3 parallel flow and NaAlO2-Al2(SO4)3 series flow on the pigment properties of TiO2 were investigated with sand milling slurries of TiO2 respectively treated by zinc and aluminum salt as raw material.The results indicate t...
Application of Vanadium and Titanium
Microstructure of Alloy Composite Coatings Reinforced by Ti(C,N) Particles through Laser Cladding Technology
Qi Yongtian, Cao Runping, Liu Shixi, Qiao Yu, Zhang Shizhong
2014, 35(4): 24-27. doi: 10.7513/j.issn.1004-7638.2014.04.005
Abstract(121) PDF(1)
Abstract:
A new in-situ synthesis method was employed to produce Fe-based alloy composite coating reinforced by Ti(C,N) particles on the surface of cast steel through CO2 laser cladding technology.The phase compositions and the microstructure of the composite cladding layer were analyzed by X-ray diffraction ...
Electrochemical Performances of Novel Vanadium-based Hydrogen Storage Alloy for Automotive Battery
Yu Rui
2014, 35(4): 28-31. doi: 10.7513/j.issn.1004-7638.2014.04.006
Abstract(100) PDF(1)
Abstract:
A novel V-based hydrogen storage alloy for automotive battery was prepared by adding 0.204% nano-Cu particles and 0.102% Ga into the V3TiNi0.56 alloy,and the microstructure,phase composition of the novel alloy and the electrochemical properties of power battery assembled by the novel alloy were inve...
Prediction and Analysis on Charge-discharge Circulation Property of Vanadium-based Hydrogen Storage Alloy Based on Neural Network
Meng Biao, Liu Dong
2014, 35(4): 32-35. doi: 10.7513/j.issn.1004-7638.2014.04.007
Abstract(99) PDF(2)
Abstract:
The neural network prediction model with three layers of 16×48×1 was built with the contents of16 kinds of alloying elements as input parameters,and with the charge-discharge circulation property as output parameter.The verification test for the prediction model was carried out.Furthermore,the chemi...
Orthogonal Mutual Influences of Salt Processing and Calcination on Rutile Titanium White Pigment
Liang Anbing, Tian Congxue, Chen Hua
2014, 35(4): 36-40. doi: 10.7513/j.issn.1004-7638.2014.04.008
Abstract(103) PDF(3)
Abstract:
The orthogonal mutual influences of the amount of salt treatment agents (zinc,potassium and phosphate salt) and the highest calcination temperature on the preparation of rutile titanium white pigment were investigated by L27(313) orthogonal experiments,using meta-titanic acid hydrolyzing from the in...
Resources Environment and Energy Saving
Hydration Performance of the Tailing Slag from V-Ti-Si-Fe Alloy-making Process Based on Ti-bearing Blast-furnace Slag
Hong Yuanyuan, Ke Changming, Liu Xuexin, Han Bingqiang, Zhang Jinhua
2014, 35(4): 41-46. doi: 10.7513/j.issn.1004-7638.2014.04.009
Abstract(117) PDF(1)
Abstract:
The hydration performances of 2 types of tailing slags in Pangang,produced by V-Ti-Si-Fe alloy extraction,with Ti-bearing blast furnace slag as the main material were researched.The phase compositions and microstructures of tailing slags before and after hydration were characterized by XRD and SEM,a...
Research of Sulfuric Acid Produced by Sintering Gas Desulfurization in Pangang Using as Raw Material in Titanium Dioxide Preparation
Shi Ruicheng, Cheng Xiaozhe, Wang Bin
2014, 35(4): 47-50. doi: 10.7513/j.issn.1004-7638.2014.04.010
Abstract(67) PDF(1)
Abstract:
Titanium dioxide was prepared,using the sulfuric acid by the sintering gas desulfurization in Pangang as the raw material of acidolysis process.The tendency and distribution of harmful elements in the acid during the titanium dioxide production were tracked and monitored,and the meta-titanic acid sa...
Technical Review
Processes,Microstructure and Properties of Vanadium Microalloyed Steels
T N Baker
2014, 35(4): 51-61. doi: 10.7513/j.issn.1004-7638.2014.04.011
Abstract(144) PDF(2)
Abstract:
Vanadium as an important alloying element in steels was initially associated with the properties achieved following tempering.Interest in the microstructure was stimulated by the advent of transmission electron microscopes with a resolution of y1 nm together with selected area electron diffraction t...
Ferrous Metallurgy and Materials
Influence of Ti(C,N) on the Performance of BF Slag
Cui Shiqiang
2014, 35(4): 62-66,76. doi: 10.7513/j.issn.1004-7638.2014.04.012
Abstract(65) PDF(2)
Abstract:
According to the current smelting condition of Chengde-steel blast furnace,a viscosimeter was used to evaluate the influence of TiC and TiN additions on the melting performance of BF slag.The measurement indicated that additives of TiC,TiN and their combined compound Ti(C,N) are key factors influenc...
Influence of Ordinary Ore Blending Ratio on Texture of Titanium Sinter
Liu Lina, Han Xiuli, Duan Shan, Liu Lei
2014, 35(4): 67-70,82. doi: 10.7513/j.issn.1004-7638.2014.04.013
Abstract(116) PDF(1)
Abstract:
The effect of ordinary ore blending ratio on texture of sinter containing titanium was investigated in order to address the problems of low strength and poor low temperature reduction degradation index for sinter in Chengde Iron and Steel Company.The results show increasing percentage of blending or...
Study on Differential Thermal Analysis and Single Burning Experiment of Vanadium-titanium Ore Powder
Liu Ran, Li Chao, Lu: Qing, Wang Xingjuan
2014, 35(4): 71-76. doi: 10.7513/j.issn.1004-7638.2014.04.014
Abstract(129) PDF(7)
Abstract:
Mineral phase structure,differential thermal analysis and sintering experiment had been performed on three kinds of iron concentrate powder.Phase structure results show all three kinds of iron ore fines are typical magnetite iron grade with lower content of SiO2,and higher TiO2,Al2O3,FeO.Differentia...
Study on Desulfurization of Steel Q345 during LF Refining at High Basicity Slag System
Dong Fang, Deng Haohua, Qie Junmao, Tian Yushi
2014, 35(4): 77-82. doi: 10.7513/j.issn.1004-7638.2014.04.015
Abstract(90) PDF(5)
Abstract:
The effects of LF refining slag ingredient and slag particle size on Q345 steel desulfurization had been determined by a MoSi2 shaft type electric resistance furnace in laboratory.Test results showed that under refining condition of higher basicity (R=3~53~4.5),the desulfurization rate gradually inc...
Numerical Simulation on the Eight-strand Tundish of Billet Continuous Caster
Chen Yuanqing, Peng Jiaqing, Guo Yu, Han Defei, Guo Feng, Shang Zhenghong
2014, 35(4): 83-88. doi: 10.7513/j.issn.1004-7638.2014.04.016
Abstract(79) PDF(7)
Abstract:
The 3D mathematical model of fluid flow,heat transfer and species transportation has been used to optimize the flow control device of a T shape eight-strand billet continuous casting tundish.The flow field,temperature filed,residence time distribution of the molten steel have been computed and analy...
Research on Behavior of Inclusions before and after Calcium Treatment in Non-oriented Silicon Steel
Zhao Yong, Sun Yanhui, Yin Xue, Sun Saiyang, Zhang Xichao
2014, 35(4): 89-93. doi: 10.7513/j.issn.1004-7638.2014.04.017
Abstract(98) PDF(3)
Abstract:
Behavior of inclusions before and after calcium treatment in non-oriented silicon steel was researched by investigating changes of compositions,types,shapes and sizes of inclusions before and after calcium treatment,for the purpose of providing theoretical guidance for calcium treatment of non-orien...
Study on Influencing Factors of N Content in Cr12N High Nitrogen Steel
Wang Shuhuan, Guo Jianlong, Zhao Dingguo
2014, 35(4): 94-97. doi: 10.7513/j.issn.1004-7638.2014.04.018
Abstract(91) PDF(3)
Abstract:
By varying temperature,pressure,bottom blowing time and bottom blowing flux during vacuum smelting Cr12N steel for the purpose of determinating factors influencing N content in a Cr12N high nitrogen steel.The results indicated that N content decreased from 0.37% to 0.34% when the tested temperature ...
Analysis and Research of the Inclusions of GCr15 Billets
Ma Wenjun, Bao Yanping, Wang Min, Zhao Lihua
2014, 35(4): 98-102. doi: 10.7513/j.issn.1004-7638.2014.04.019
Abstract(50) PDF(1)
Abstract:
Based on this fact that it is difficult to control of the total oxygen less than 10×10-6 when smelting bearing steel in a 100 t EAF,the inclusions in bearing steel billets were analyzed by full-size three-dimensional analysis and large sample electrolysis in the paper.The result showed that the cont...
Study on the Hot Ductility of Low Carbon Steel Q345B Bloom
Ai Xi, Sun Yanhui, Ceng Yanan, Liu Ruining, Liu Yong
2014, 35(4): 103-106. doi: 10.7513/j.issn.1004-7638.2014.04.020
Abstract(89) PDF(2)
Abstract:
Hot ductility of low carbon steel Q345 B bloom was tested by Gleeble 1500 thermo-mechanical simulator at the strain rate of 1×10-4s-1and 1×10-3s-1respectively.The results indicated that there were two brittle zones at the temperature ranging from 600~TL℃ when the strain rate was at 1×10-4s-1,that is...
Effect of Intercritical Annealing Time on Precipitations in a Hot Rolled Ultrafine Grained Metastable Automobile Steel
Li Jiguang, Huang Hailiang, Chen Junyan
2014, 35(4): 107-111. doi: 10.7513/j.issn.1004-7638.2014.04.021
Abstract(65) PDF(1)
Abstract:
The size,morphology,distribution and components of precipitates in hot rolled ultrafine grained metastable automobile steel under hot rolling and intercritical annealing after different holding time were systematically investigated by using carbon extraction replica,transmission electron microscopy ...
Study on Continuous Annealing Process of Ti-IF Steel on a Continuous-annealing/Hot-dip Galvanizing Dual Purpose Line
Zheng Zhiwang, Wang Minli
2014, 35(4): 112-117. doi: 10.7513/j.issn.1004-7638.2014.04.022
Abstract(79) PDF(1)
Abstract:
According to the characteristics of a Continuous-annealing/Hot-dip Galvanizing Dual Purpose Line,a series of Ti-IF steels with different carbon content were used to investigate the effect of continuous annealing temperature and annealing time,cold-rolling reduction and prestretching deformation on t...
Effect of Mn on Microstructure and Hardness of Ausenit-ferrite Transformation of Low Carbon Steel
Li Huicheng, Yue Xudong, Chen Shuying, Yang Hongming
2014, 35(4): 118-121. doi: 10.7513/j.issn.1004-7638.2014.04.023
Abstract(172) PDF(2)
Abstract:
The effect of Mn on microstructure and hardness of austenit-ferrite transformation was studied by thermal dilatometer,metallographic microscope,scanning electron microscope (SET) and microhardness tester.The result show that higher Mn content leads to reduce austenite-ferrite transformation temperat...
Effect of Deformation on Microstructure and Recrystallization of Low Carbon Cold Rolled Sheet
Guo Ruipeng, Cui Yan, Gui Yongliang
2014, 35(4): 122-126. doi: 10.7513/j.issn.1004-7638.2014.04.024
Abstract(113) PDF(3)
Abstract:
Simulated bell-type furnace annealing test of cold rolled sheet with different reduction ratio was carried out under different temperatures.The results show that strain hardening effect and dislocation density increase as cold reduction increases.the recrystallized grain size is much finer and unifo...
2014, 35(4): 127-128.
Abstract(55) PDF(1)
Abstract:

Address：Editorial Department of Iron Vanadium Titanium Steel, Technology Development Research Center, Research Institute of Panzhihua Group Co., Ltd., No. 90 Taoyuan Street, East District, Panzhihua City, Sichuan Province (617000)

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