2012 Vol. 33, No. 3

Extracting of Vanadium and Titanium
Study on Preparation of Metatitanic Acid by Hydrolysis in the Process of Producing Titanium Dioxide by Decomposition of Titanium Slag with Alkali Molten Salt
Han Yanfang, Sun Tichang, Xu Chengyan, Qu Jingkui, Qi Tao, Wang Guiling
2012, 33(3): 1-5.
Abstract(72) PDF(2)
Abstract:
Preparation of TiO2 with titanium slag by molten-salt method is a new way to produce TiO2 in which the preparation of metatitanic acid by hydrolysis is an important step due to its huge influence on the quality and yield of the finished products.This paper has identified the factors including concen...
Influence of Vanadium Slag Cooling Scheme on Particle Size of Vanadium Spinel and Sodium Roasting
Fu Zibi, Yin Danfeng, Zhang Xinxia
2012, 33(3): 6-10.
Abstract(60) PDF(2)
Abstract:
Phase structures and spinels’ particle size of water-cooled vanadium slag,air-cooled vanadium slag and slowly cooled vanadium slag are analyzed,and the effect of holding time at 1 000 ℃ under nitrogen atmosphere on particle size of the vanadium spinel is studied.In addition,comparisons of sodium roa...
Study on Quality Improvement of Vanadium Precipitation with (NH42SO4
CHEN Zi-qing
2012, 33(3): 11-15.
Abstract(72) PDF(2)
Abstract:
The optimization of process parameters and control measures during the process of vanadium precipitation with acidic ammonium is studied to improve the quality of feedstocks for the production of high grade V2O3.Major factors contributing to the quality of APV prepared by vanadium precipitation with...
Comprehensive Utilization
Study on Recycling Waste Water from V2O5 Extraction from the Stone Coal Leaching Solution
Huang Han, Zeng Lunsheng, Liang Huanlong, Luo Siqiang, Lei Weiming
2012, 33(3): 16-19.
Abstract(58) PDF(1)
Abstract:
Experiments for recycling waste water from the process of V2O5 extraction from stone coal leaching solution are carried out in which a V2O5 extraction process of direct acid leaching and solvent extraction is employed using stone coal obtained from a certain area of Guangxi Province as raw materials...
Discussion on Routes of Recycling Waste Water Produced from APV Precipitation with Acidic Ammonium Salts
WANG Ying
2012, 33(3): 20-23.
Abstract(66) PDF(1)
Abstract:
Routes of recycling waster water produced from APV precipitation with acidic ammonium salts are proposed,which is expected to be used for rinsing precipitation equipment,washing tailings and leaching roasted materials and corresponding experiments are carried out.The experimental results show that u...
Investigative Test of Iron Separation Process of a Panzhihua Lower Grade Vanadium-bearing Titanomagnetite Ore
Zeng Zhiyong
2012, 33(3): 24-27,39.
Abstract(60) PDF(1)
Abstract:
Investigative test of iron separation process of a kind of Panzhihua lower grade vanadium-bearing titanomagnetite ore,including crushing,grinding and magnetic separation were carried out.Two options were tested:(a) treat the ore by grinding and magnetic separation after crushing;(b) enrich the ore b...
Numerical Simulation on Cooling Dynamics of Slag Droplet Granulated by Gas Quenching
Lu Hongwei, Li Junguo, Zhang Yuzhu
2012, 33(3): 28-33.
Abstract(80) PDF(1)
Abstract:
Steel slag droplets will experience a complex process of cooling and solidification after they are granulated by gas quenching.Numerical simulation for cooling dynamics of slag droplets is carried out by Fluent software.The simulation result is compared with that obtained from numerical calculation....
Processes for Iron and Steel
Numerical Simulation of Slag Entrainment by Vortex Flux During Tapping at Converter
Wang Jianqiang, Li Junguo, Han Zhijie
2012, 33(3): 34-39.
Abstract(111) PDF(5)
Abstract:
In order to effectively reduce the quantity of slag entrained into ladle during tapping and improve steel quality,a more efficient and low-cost method of slag stopping should be developed.In this paper,numerical simulation for static tapping process under different original molten steel levels has b...
Water Simulation of Steel/Slag Interface Flow Regime of the Slab Mould
Shu Zhihao, Hou Zewang
2012, 33(3): 40-45.
Abstract(56) PDF(1)
Abstract:
Based on a full-size water mould,the influences of the process parameters on the flow regime of steel/slag interface of the slab mould,such as the mould width,casting speed,SEN structure、submergence depth of SEN,etc were investigated.The results show that interfacial fluctuations and the max fluid r...
Research on Characteristics of the Dead Zones in RH Melt Bath with Simulation Methods
Xue Liqiang, He Ping
2012, 33(3): 46-52.
Abstract(72) PDF(1)
Abstract:
Taking the 170 t RH refining equipment of a steel company as a prototype,a mathematical simulation of flow field in the RH is carried out to study the dead zones in the RH melt bath under different gas flow rates,inner diameter and immersion depth of snorkel and vacuum degree.The results show that t...
Analysis on Multi-taper Billet Mould
Zhang Haihui, Liu Jianmin, Liu Zengxun, An Zhenliang
2012, 33(3): 53-58.
Abstract(53) PDF(1)
Abstract:
Based on stress inheriting characteristic of the billet shell in continuous casting,a thermo-mechanical coupling model of billet is established.Heat transfer and stress fields of the billet in the mould is analyzed by the finite element software ANSYS.The mould taper is optimized according to princi...
Metallic Material
Research on Behavior of Non-metallic Inclusions in Non-oriented Silicon Steel During Refining Process
Liu Jingjing, Qin Zhe, Hou Zewang, Qiu Shengtao, Wang Janjun
2012, 33(3): 59-64.
Abstract(79) PDF(3)
Abstract:
During the refining process,the transformation of non-metallic inclusions in non-oriented silicon steel produced by the process of KR-BOF-RH-ASP is analyzed using the methods of SEM-EDS and main sources of non-metallic inclusions are identified in this paper.The results show that the inclusions afte...
Evolution of Hot Rolled,Normalized and Cold Rolled Texture of Non-Oriented Silicon Steel Produced by CSP
Pu Chunlei, Li Jianjun, Yue Erbin, Song Lin
2012, 33(3): 65-69.
Abstract(79) PDF(1)
Abstract:
By using EBSD and X-ray diffraction technology,evolution of hot rolled,normalized and cold rolled textures of non-oriented silicon steel produced by a simulation process of CSP was examined.The results show that the texture types along the thickness in the hot rolled strip are substantially differen...
Effects of Production Process and Chemical Compositions on Magnetic Properties of Phosphorus-bearing Non- oriented Silicon Steel
Zhang Feng, Lv Xuejun, Ma Changsong, Chen Xiao
2012, 33(3): 70-76.
Abstract(57) PDF(2)
Abstract:
Based on industrialization of low and medium grade non-oriented silicon steel,the effects of production process and chemical compositions on magnetic properties of phosphorus-bearing non-oriented silicon steel are investigated.The results show that phosphorus could restrain the recrystallization of ...
Research on High Temperature Ductility of 1.2%Si Cold Rolled Non-oriented Electrical Steel Slab
Hu Shaodong, Xiang Li, Lai Chaobin, Qiu Shengtao, Jia Caixia, Xie Senlin
2012, 33(3): 77-81.
Abstract(65) PDF(1)
Abstract:
High temperature ductility test for 1.2% Si cold-rolled non-oriented electrical steel slab at 600~1 300 ℃ has been carried out by Gleeble1500 stress/strain thermomechanical simulator.Thermoplasticity and intensity curve of samples under testing temperatures was obtained,then through the observation ...
Evolution of Microstructure and Texture of 50W1300 Non-oriented Silicon Steels
Jia Caixia, Xiang Li, Tang Guangbo, Qiu Shengtao, Zhao Hongjin
2012, 33(3): 82-87.
Abstract(114) PDF(3)
Abstract:
The effect of hot continuous rolling-cold rolling-annealing process on microstructure and texture of 50W1300 non-oriented silicon steel is investigated by the technology of EBSD and electron microscopy.The results show that during thermoplastic processing,all the grains in the surface layer of hot-r...
Study on Thermal Deformation Behavior of 65Mn Steel for Saw Blade
Chen Liansheng, Liu Song, Song Jinying, Tian Yaqiang
2012, 33(3): 88-92.
Abstract(82) PDF(3)
Abstract:
The thermal deformation behavior of 65Mn steel for saw blade is investigated through thermocompression method with Gleeble-3500 thermal mechanical simulator.The results show that in a certain testing condition,the deformation resistance as well as peak strain of the 65Mn steel increases with the dec...
Research on non-metallic inclusions of 20G Steel
Gao Jü, Li Lijie
2012, 33(3): 93-97.
Abstract(48) PDF(1)
Abstract:
In the early production of 20G in Steel,crack defects and macro examination unqualified.So the type,resource,amount and distribution of non-inclusions are systemically studied by the actual combination of laboratory and field research methods for the production process of 20G steel,The result shows:...
Technical Discussion
Latest Development of New Vanadium Materials
Wang Zhonghang, Zheng Shili, Du Hao, Wang Shaona, Zhang Yi
2012, 33(3): 98-106.
Abstract(50) PDF(2)
Abstract:
As an important strategic metal resource for a country,vanadium and its compounds are widely used in metallurgy,aerospace,chemical and other fields.In recent years,as pressures on human beings in resources,energy and environment gradually increase,more and more researches have been made on vanadium ...
2012, 33(3): 107-108.
Abstract(45) PDF(1)
Abstract: