钢铁钒钛

Present Status and Prospects of Vanadium and Chromium Separation in Vanadium Extraction from Vanadium-chromium Slag

Wang Xuewen, Wang Mingyu, Fu Zibi, Meng Yuqi, Gao Daxiong, Chen Bianfang

2017, 38(6): 1-5. doi: 10.7513/j.issn.1004-7638.2017.06.001

Abstract(70) PDF(3)

Abstract:
The present status and prospects of vanadium and chromium separation in vanadium extraction from vanadium-chromium slag were introduced in this paper,and the advantages and drawbacks of the existing vanadium-chromium separation and recovery processes were analyzed. Combined with the latest developme...

Research Progress of Selective Enrichment and Precipitation of Titanium in High Titanium Blast Furnace Slag

Xu Renze, Zhang Jianliang, Chang Zhiyu, Jiao Kexin

2017, 38(6): 6-12. doi: 10.7513/j.issn.1004-7638.2017.06.002

Abstract(292) PDF(18)

Abstract:
Based on lots of research work on Ti-bearing blast furnace slag utilization,current situations of comprehensive utilization of Ti-bearing blast furnace slag and technologies of enrichment and precipitation of Ti in high titanium slag were summarized. The ways of titanium extraction from Ti-bearing s...

Study on the Application Technology Route for the Titanium Slag Reduced from Titanium Vanadium Iron Concentrate in Direct Reduction Process

Piao Rongxun, Ma Lan, Yang Shaoli, Tang Ling

2017, 38(6): 13-22. doi: 10.7513/j.issn.1004-7638.2017.06.003

Abstract(154) PDF(9)

Abstract:
The predecessors reported more about research on application technology roadmap of acid-soluble titanium slag and high titanium slag.There is no report on the use of 50 titanium slag from the direct reduction of non-blast furnace smelting technology,but there are no reports on the use of 50 titanium...

The Oxidation Dynamics of Ilmenite

Kang Liwu, Zeng Jun, Huang Yonggang

2017, 38(6): 23-26. doi: 10.7513/j.issn.1004-7638.2017.06.004

Abstract(142) PDF(8)

Abstract:
In this paper,the oxidation mechanism of ilmenite was discussed by respectively studying the oxidation kinetics of ilmenite in medium and high temperature ranges.The apparent activation energies of the reactions are 227.50 kJ/mol and 99.25 kJ/mol in the temperature range of 600~750 ℃ and 750~900 ℃,r...

Analysis of the Impact of Hydrolysis Process on the Grey Point

Lu Ruifang

2017, 38(6): 27-32. doi: 10.7513/j.issn.1004-7638.2017.06.005

Abstract(81) PDF(5)

Abstract:
In this work,spectrophotometry was used to characterize the grey point of the hydrolysis process of titanium dioxide by sulfuric acid process. Based on the relationship between the transmittance and time during two hydrolysis processes （without and within addingexternal seeds）,the impact of hydrolys...

Effect of Slag Content Control on Vanadium Loss in Ferrovanadium Smelting Process

Yu Bin, Sun Zhaohui, Zhang Wei, Liang Bin

2017, 38(6): 33-36. doi: 10.7513/j.issn.1004-7638.2017.06.006

Abstract(93) PDF(2)

Abstract:
Based on the smelting performance and slag control situation during the ferrovanadium industrial preparation process,the theoretical amount of slag produced by different vanadium oxides and different smelting stages was analyzed,and the slag amount and precise slag control technology of multi-stage ...

Research Progress on Microstructure and Mechanical Properties of（Ti,M）（C,N）-based Cermets

Wang Xiru, Zhang Xuefeng, Chen Min

2017, 38(6): 37-42. doi: 10.7513/j.issn.1004-7638.2017.06.007

Abstract(200) PDF(4)

Abstract:
(Ti,M)（C,N）-based cermets are important tools and coating materials.The domestic and abroad research progress of microstructure and mechanical properties of （Ti,M）（C,N）-based cermets was reviewed,and the characteristics of black core-white inner ring-gray outer ring and white core-grey ring microstr...

Nonspherical High-purity Titanium Powders Prepared by Molten Salts Electrolysis for 3D Skeletal Printing

Fan Yazhuo, Deng Bin, Mu Tianzhu, Zhao Sanchao, Miao Qingdong, Xie Bo, Zhu Fuxing

2017, 38(6): 43-46. doi: 10.7513/j.issn.1004-7638.2017.06.008

Abstract(77) PDF(3)

Abstract:
Nonspherical high-purity titanium powders were prepared by molten salts electrolysis for 3D skeletal printing,its manufacture cost is less than 10% of spherical titanium powders.Nonspherical titanium powders by molten salts electrolysis own the characteristics of high purity and specific surface are...

Study on Thermodynamic and Kinetics for Preparation of Vanadium-aluminum Alloy Based on Thermite Reaction

Duan Shengchao, Wang Zhuqing, Guo Hanjie, Guo Jing, Shi Xiao, Liu Shuai, Yu Mengxi

2017, 38(6): 47-54. doi: 10.7513/j.issn.1004-7638.2017.06.009

Abstract(228) PDF(12)

Abstract:
A thermodynamic model for calculating the mass action concentration of structural units in Al-V binary melts system was established based on the atom-molecule theory.The standard equilibrium constants for generating Al₈V₅ and Al₄V were calculated using the activities of Al-V binary system respective...

Effect of Heat Treatment Temperature on Properties of Vanadium and Titanium Modified Automobile Transmission Shaft Steel

Zhang Bin

2017, 38(6): 55-58,63. doi: 10.7513/j.issn.1004-7638.2017.06.010

Abstract(74) PDF(3)

Abstract:
The vanadium and titanium modified automobile transmission shaft steels were heat treated with various normalizing temperatures,quenching temperatures and tempering temperatures. The impact property and wear resistance were tested and analyzed. The results show that both of the impact property and w...

Effect of Co-permeation of Vanadium-titanium-cerium on Properties of Hot Work Die Steel

Ji Chengmei, Zhao Hui, Lu Jianhui

2017, 38(6): 59-63. doi: 10.7513/j.issn.1004-7638.2017.06.011

Abstract(50) PDF(1)

Abstract:
Vanadium,titanium and cerium were infiltrated into the 5 CrNiMo hot work die steel with different processing temperatures and processing time,and the thermal fatigue property and wear resistance were tested and analyzed.The results show that with processing temperature from 875 ℃ to 975 ℃ and proces...

Extrusion Process Optimization of Novel Automobile Radiator with Magnesium Alloy Containing Titanium

Li Shizeng, Li Anmin

2017, 38(6): 64-68. doi: 10.7513/j.issn.1004-7638.2017.06.012

Abstract(61) PDF(1)

Abstract:
Novel automobile radiator containing titanium-magnesium alloy was produced with different extrusion temperatures,extrusion speeds and extrusion ratios,and the mechanical properties were tested and analyzed.The results show that with extrusion temperature from 320 ℃ to 420 ℃,extrusion speed from 1.5 ...

Experimental Research on Sintering Liquid Phase Fluidity Behavior of Imported Iron Ore

Wang Zhe, An Gang, Wei Hongqi, Cheng Zhengming, Liu Boyang, Pei Yuandong, Qi Chenglin, Chen Shaoguo

2017, 38(6): 69-73. doi: 10.7513/j.issn.1004-7638.2017.06.013

Abstract(69) PDF(1)

Abstract:
In iron ore sintering process,iron ore liquid fluidity property has a critical impact on sinter quality.Liquid phase fluidity experiments of imported iron ore are carried out by using high temperature characteristic apparatus for iron ore.Influencing factors that affect liquid phase fluidity are elu...

Acetic Acid Leaching of Calcium-based Active Components from Converter Steel Slag

Chen Lin, Liu Bingguo, Zhang Libo, Jiang Yonglin

2017, 38(6): 74-80. doi: 10.7513/j.issn.1004-7638.2017.06.014

Abstract(127) PDF(4)

Abstract:
On the basis of thermodynamic study,with converter steel slag as the leaching object and acetic acid as leaching agent,the effects of leaching temperature,leaching time,concentration of acetic acid and the ratio of solid to liquid on the leaching rate of calcium in converter steel slag having differ...

Discussion on the Process Feasibility of Granulation for High-titanium Slag by Water Quenching

Liu Xianghai, Gou Zhiyuan

2017, 38(6): 81-84. doi: 10.7513/j.issn.1004-7638.2017.06.015

Abstract(85) PDF(6)

Abstract:
In order to reduce the crush times and grinding cost of high titanium slag,an attempt was carried out to apply the water quenching process of blast furnace slag to the production of high titanium slag.The physical properties of the blast furnace slag and high titanium slag were contrasted and the wa...

Thermodynamics Analysis for Carbon Thermal Reduction of Titanium-containing Slag

Wang Dongsheng

2017, 38(6): 85-90. doi: 10.7513/j.issn.1004-7638.2017.06.016

Abstract(99) PDF(2)

Abstract:
In this paper,the thermodynamics of carbon thermal reduction process of titanium-containing slag was analyzed.The results show that during the carbon thermal reduction process of titanium-containing slag,TiO₂ is reduced to a series of low-valence titanium oxides.TiO₂ begins to transform into Ti₃O₅ a...

Effects of Specific Surface Area on Granulation Behavior of Vanadium Titano-magnetite Concentrate

Zhang Jianliang, Liu Donghui, Liu Zhengjian, Wang Guangwei, Wang Yaozu, Kang Qingfeng

2017, 38(6): 91-97. doi: 10.7513/j.issn.1004-7638.2017.06.017

Abstract(70) PDF(4)

Abstract:
Effects of specific surface area on the granulation behavior of the vanadium titano-magnetite concentrate（VTM） were investigated using micro-drum granulation equipment. The results show that the particle morphology of the VTM mainly present irregular shape,part of them are lamellar and globular stru...

Impact of Magnesium Oxide on the Green Ball Quality and Cruslring Strength of Pellets

Yan Zhaozhao, Lu Jianguang, Lü Qing, Zhang Shuhui, Liu Xiaojie

2017, 38(6): 98-103. doi: 10.7513/j.issn.1004-7638.2017.06.018

Abstract(103) PDF(3)

Abstract:
Magnesium oxide plays a crucial role in the progress of blast furnace production. In this paper the effect of magnesium oxide on the green ball quality and cruslring strength of acid pellets had been investigated through changing the content of magnesium oxide by adoption of A fine powder,B fine pow...

Comparative Study on Low-temperature Reduction and Powdered Properties of Vanadium Titanium Sinter and Ordinary Sinter

Yang Wenkang, Yang Guangqing, Li Xiaosong, Yin Sibo, Zhou Ziqing

2017, 38(6): 104-107,120. doi: 10.7513/j.issn.1004-7638.2017.06.019

Abstract(92) PDF(4)

Abstract:
The experimental results show that the pulverization of vanadium and titanium sintered ore and ordinary sintered ore at low temperature is analyzed. The results show that ordinary sinter At 500 ℃,the pulverization rate was 83.80%. Vanadium and titanium sintered ore at 700 ℃ low temperature reduction...

Effect of Slag Splashing on Gasification Dephosphorization in Converter

Yao Hongyong

2017, 38(6): 108-112. doi: 10.7513/j.issn.1004-7638.2017.06.020

Abstract(52) PDF(1)

Abstract:
The effect of nitrogen supplying intensity and ratio of coke powder and bottom blowing gas flow rate on gasification dephosphorization are studied,in combination with thermodynamic analysis of gasification dephosphorization for top and bottom combined blowing converter in this paper.The result shows...

Study on the Collision of Inclusions on Refractory Wall

Zhao Dingguo, Wang Yufei, Wang Shuhuan, Zhang Fujun

2017, 38(6): 113-120. doi: 10.7513/j.issn.1004-7638.2017.06.021

Abstract(70) PDF(3)

Abstract:
In this paper the behavior of collision between inclusions in molten steel and refractory wall when the molten steel flows through the continuous casting nozzle had been investigated and thenthe model of collision between inclusions had been developed.It is found out that when the coefficient of res...

Numerical Simulation on Microstructure of GCr15 Bearing Steel Bloom

Wang Dejiong, Jiao Shuai, Yin Hao, Sun Yanhui, Zhao Yong, Li Xiaobin

2017, 38(6): 121-127. doi: 10.7513/j.issn.1004-7638.2017.06.022

Abstract(71) PDF(1)

Abstract:
The solidification mathematical model was established by ProCAST software on a GCr15 steel bloom and then the CAFE model was used to simulate the solidification structure of the bloom.The effects of superheat,casting speed and secondary cooling intensity on the solidification structure of bloom were...

Analysis of Thermo-mechanical Coupling in the Beam Blank Mould Based on Inherited Stress

Chen Wei, Guo Gaoxiang, Yu Xingwang, Wang Jiaqi, Chen Ying, Yang Gaiyan

2017, 38(6): 128-133. doi: 10.7513/j.issn.1004-7638.2017.06.023

Abstract(79) PDF(3)

Abstract:
In order to control surface cracks in beam blank via continuous casting process,a thermo-mechanical coupling model considering the taper and air gap was established to compute the temperature and stress in the mold based on stress genetic characteristics of the slab shell and multiple load step way....

Analysis on Heat Transfer and Optimization for Cooling Structure of Mould Narrow Face Copper Plate for Thin Slab Continuous Casting

Liu Qilong, Liu Guoping, Fan Mancang, Zhang Hui, Qiu Shengtao, Liu Heping

2017, 38(6): 134-141. doi: 10.7513/j.issn.1004-7638.2017.06.024

Abstract(111) PDF(6)

Abstract:
In oder to address the problem that narrow face of mould copper plate of thin slab continuous casting process present server wear and low service life,the effect of cooling structure of narrow face copper plate on heat transfer had been analyzed. A new copper plate used for improving cooling ability...

Study on Inclusion Behavior of Low Carbon and Low Silicon Al-killed Steel During Refining Process

Xu Xiaomei, Sun Yaping, Jia Jihua, Wang Chunfeng

2017, 38(6): 142-146. doi: 10.7513/j.issn.1004-7638.2017.06.025

Abstract(113) PDF(5)

Abstract:
The main source,quantity,size distribution,composition and type evolution rule of non-metallic inclusions in SPHC steel were analyzed and studied through the castig sampling of Tangsteel FTSR cold rolling base material （SPHC） steel,and the inclusions was scanned and detected automatically by ASPEX.T...

Effects of Bending Deformation on the Domain Structure and Magnetic Properties of Non-oriented Silicon Steel

Song Shouxu, Liu Tao, Wang Wenzhe

2017, 38(6): 147-152. doi: 10.7513/j.issn.1004-7638.2017.06.026

Abstract(102) PDF(5)

Abstract:
The evolution of magnetic domain and magnetic properties of B35 AV1900 non-oriented silicon silicon steel had been studied under the condition of small deformation amplitude in this paper.Soft magnetic ac/dc tester,bitter pattern,residual stresses the X-ray detector and hardness tester had been used...

Cause of Transverse Fracture on U75V 60kg/m Heat-treated Rail

Deng Yong, Yang Bin, Yuan Jun

2017, 38(6): 153-157. doi: 10.7513/j.issn.1004-7638.2017.06.027

Abstract(63) PDF(2)

Abstract:
By detecting the macro morphology,microstructure,microhardness and chemical composition of broken rail from Central South Railway,a metal layer of high manganese steel were found being welded to the running surface of rail,which caused occurrence of brittle structure consisting of martensite and bai...

Analyzing of Titanium Patents at Home and Abroad

Zhang Tao

2017, 38(6): 158-164. doi: 10.7513/j.issn.1004-7638.2017.06.028

Abstract(75) PDF(3)

Abstract:
The statistical analysis for rolled titanium’s the overall trend,technique construction and technological tendency over the whole world has been processed combining with patent analyzing methods of quantitative analysis and qualitative analysis.The number of rolled titanium’s patent application over...

2017 Vol. 38, No. 6