钢铁钒钛

Theoretical and Thermal Simulation of Vanadium Extraction from Molten Iron in Combination Blowing Converter

Liu Zhibin, Zhang Xidong, Ma Deng, Zhao Bin, Wu Wei

2016, 37(2): 1-7. doi: 10.7513/j.issn.1004-7638.2016.02.001

Abstract(105) PDF(0)

Abstract:
Based on the ion and molecule coexistence theory,we calculated the activity coefficient of V₂O₃ in the vanadium removing slag V₂O₃-SiO₂-TiO₂-Cr₂O₃-MgO-MnO-FeO,the influence of vanadium composition、temperature on the activity coefficient of V₂O₃ has been investigated,the activity coefficient of V₂O₃ ...

Effects of Heat Treatment Conditions on Precipitation Behavior of Perovskite in the Titanium-bearing Blast Furnace Slag

Zhang Shiqiu, Wang Weiqing, Yan Wu, Deng Jie, Huang Yang

2016, 37(2): 8-14. doi: 10.7513/j.issn.1004-7638.2016.02.002

Abstract(85) PDF(1)

Abstract:
In order to achieve the effective recovery of titanium component in the titanium-blast furnace slag from Pangang Group Co.,Ltd.,the effect of different heat treatment conditions on selective precipitation behavior of perovskite as the enriched phase of titanium were studied in this paper.Through ana...

Regression Relation between the Achromic Ability of the Rutile Titanium White Pigment and the Influence Factors of Salt Treatment and Calcination

Liang Anbing, Tian Congxue, Chen Hua, Chen Zhirong

2016, 37(2): 15-20. doi: 10.7513/j.issn.1004-7638.2016.02.003

Abstract(128) PDF(2)

Abstract:
With metatitanic acid hydrolyzing from low concentration of industrial titanyl sulphate solution as raw material,the orthogonal mutual influences of the addition amount of salt treatment agents(zinc salt,potassium salt and phosphorus salt) and the highest calcination temperature were investigated by...

Effect of Feed Rate on the Hydrolysis of Titanyl Sulfate Solutions with Low Titanium Concentration

Liu Cuicui, Liang Bin, Lü Li, Li Chun

2016, 37(2): 21-26. doi: 10.7513/j.issn.1004-7638.2016.02.004

Abstract(139) PDF(2)

Abstract:
The hydrolysis of titanyl sulfate solutions was investigated,mainly focusing on the influence of feed speed of titanium solution on hydrolysis rate,gray-turning point of solution,size of primary and secondary particles for hydrolysis.The results show that with decrease in feed rate the hydrolysis ra...

Preparation of Ti(C,N) Composite Powder by Fractional Steps of Ball Milling and Carbon Thermal Reduction

He Pingji

2016, 37(2): 27-30. doi: 10.7513/j.issn.1004-7638.2016.02.005

Abstract(79) PDF(0)

Abstract:
The Ti(C,N) composite powder was prepared by fractional steps of carbon thermal reduction after ball milling using ilmenite as raw material,and the particle size,morphology,phase composition and sintering performances of the obtained composite powder were tested and analyzed.The results show that th...

Process Mineralogy of Vanadium Titano-magnetite from Shanxi

Zhu Xiaobo, Li Wang, Sun Zhiyong

2016, 37(2): 31-36. doi: 10.7513/j.issn.1004-7638.2016.02.006

Abstract(69) PDF(1)

Abstract:
The chemical composition,mineral composition,ore particle size and ore structure were deeply analyzed using a variety of detection methods to investigate the process mineralogy of a polymetallic mineral from Shanxi.It is shown that the polymetallic mineral mainly contains magnetite and ilmenite,as w...

Hot Deformation Behaviors and Processing Map of Pure Titanium TA1

Li Jun, Shi Qingnan, Yu Hui, Ren Wanbo

2016, 37(2): 37-43. doi: 10.7513/j.issn.1004-7638.2016.02.007

Abstract(99) PDF(1)

Abstract:
The isothermal and iso-strain rate hot deformation for pure titanium TA1 was tested on Gleeble-3800 thermal simulator at 650~850℃ with strain rates of 1~20 s^-1 and deformation degree of 60%.The results show that the flow stress of the pure titanium decreases with increase in deforming temperature wh...

Simulation and Industrial Validation of Molten Pool Morphology and Solidification Structure of Pure Titanium during VAR Process

Xiao Cong

2016, 37(2): 44-49,83. doi: 10.7513/j.issn.1004-7638.2016.02.008

Abstract(115) PDF(4)

Abstract:
Change rules of molten pool morphology and solidification structure of Ø980 mm pure titanium ingot during VAR process were studied by using ANSYS and μMatIc softwares.The simulation results show that the molten pool is very small with shallow U type at the arc starting stage,then gradually changes f...

Microstructure and Properties of the Vanadium Based Hydrogen Storage Battery Anode Material Modified with Graphene

Hu Yinquan, Wu Xiaobing, He Xiaohui

2016, 37(2): 50-54. doi: 10.7513/j.issn.1004-7638.2016.02.009

Abstract(95) PDF(0)

Abstract:
The vanadium based hydrogen storage battery anode material modified with graphene was prepared by the method of sintering after ball milling,and the phase composition,microstructure,hydrogen absorption and desorption properties,and cycling stability of the anode material were tested and analyzed.The...

Study on Microstructure and Photocatalytic Activity of TiO₂ with Surface Modification by SiO₂ and Al₂O₃

Lü Bo

2016, 37(2): 55-61. doi: 10.7513/j.issn.1004-7638.2016.02.010

Abstract(86) PDF(3)

Abstract:
Sodium silicate and sodium metaaluminate were used for the inorganic surface modification of TiO₂ matrix to block the electron-hole produced by light irradiation on TiO₂,finally attempting to improve the weatherability and dispersity of TiO₂.The growth of membrane layer on the surface of TiO₂ partic...

Preparation of KVO₃ by Solventing-out Process

Wu Liuzhu

2016, 37(2): 62-65. doi: 10.7513/j.issn.1004-7638.2016.02.011

Abstract(88) PDF(4)

Abstract:
Potassium metavanadate(KVO₃) was firstly prepared by solventing-out crystallization,and the proper acidity range for crystallization from high-vanadium solution was determined.The results show that KVO₃ owning purity more than 98% can be obtained with vanadium recovery rate more than 95%,under the c...

Development of 600 MPa High-strength Anti-seismic Rebars by Nitrogen-rich V-Cr Microalloyed Technology

Chen Wei, Wu Guangyao, Zhang Weiqiang, Chen Bisheng, Li Jinzhu

2016, 37(2): 66-72. doi: 10.7513/j.issn.1004-7638.2016.02.012

Abstract(52) PDF(0)

Abstract:
In order to meet the needs of the upgrading development for construction steel,preparation of 600 MPa anti-seismic rebars by nitrogen-rich V-Cr microalloyed technology in domestic steel plant was carried out.The mechanical properties,fatigue performance,microstructure,precipitates and inclusions of ...

Smelting Chromium Using Low Iron Chromium-containing Slag in Treatment of Vanadium Precipitation Wastewater with Low COD

Teng Xiaohui, Zhuang Lijun, Li Wenhui

2016, 37(2): 73-77. doi: 10.7513/j.issn.1004-7638.2016.02.013

Abstract(55) PDF(1)

Abstract:
Vanadium precipitation wastewater was treated separately using supernatant of sodium thiosulfate solution and sodium metabisulfite,but COD of the wastewater reduced by the former was as high as 2 878 mg/L,far exceeding the emission standards.Wastewater with a lower COD and chromium-containing slag w...

The Physical and Chemical Properties of Slag Wool by Direct Fibration of Blast Furnace Slag

Long Yue, Du Peipei, Zhang Liangjin, Li Zhihui, Zhang Yuzhu

2016, 37(2): 78-83. doi: 10.7513/j.issn.1004-7638.2016.02.014

Abstract(74) PDF(0)

Abstract:
Slag wool was prepared in laboratory by four-roller centrifugation method using blast furnace slag with 1.25 of acidity coefficient as raw material.The microstructure,diameter,shot content and moisture,mineragraphy and crystallization temperature of the obtained slag wool were analyzed.The results s...

Prospect of Researching and Developing Vanadium Functional Materials Using Vanadium Resources in Panxi Area

Yang Shaoli, Ma Lan, Liu Jinfeng, Lei Zhuojun

2016, 37(2): 84-91. doi: 10.7513/j.issn.1004-7638.2016.02.015

Abstract(55) PDF(2)

Abstract:
The application of vanadium functional materials in non-steel fields,such as laser,catalyst,synthesis of chemical raw materials,coatings,architectural ornament,energy utilization and far infrared technology,etc.,has been gradually increasing.This paper has reviewed and summarized the preparation of ...

Summary on Characteristics of Oxidation Reactor for Titanium Dioxide Production by Chloride Process

Wu You

2016, 37(2): 92-96. doi: 10.7513/j.issn.1004-7638.2016.02.016

Abstract(100) PDF(8)

Abstract:
The technologies of oxidation process in the main foreign titanium dioxide manufacturers adopting chloride process,such as Dupont,Kronos,Tronox and Cristal Global were studied in this paper with emphasis on the structures of oxidation reactor and crusting removal technique.The results show that all ...

Experimental Study on High-phosphorus Hematite Gasification Dephosphorizing in Sintering Process

Fu Junkai, Zhang Wei, Xing Hongwei, Tian Tielei, Wang Hui, Liu Weixing

2016, 37(2): 97-101. doi: 10.7513/j.issn.1004-7638.2016.02.017

Abstract(53) PDF(0)

Abstract:
The effects of various factors on high-phosphorus hematite gasification dephosphorizing in sintering process were studied through pellet sintering.The results show that gasification dephosphorizing is mainly a gas-solid phase reaction process.Under low oxidizing atmosphere,the rate of high-phosphoru...

Influence of H₂ Content in Gas on Burden Reduction of Blast Furnace

Li Jianpeng, Li Fumin, La Xiaoshuai, Lü Qing, Qie Yana, Liu Xiaojie

2016, 37(2): 102-107. doi: 10.7513/j.issn.1004-7638.2016.02.018

Abstract(105) PDF(2)

Abstract:
The influence of different H₂ content on reduction process of burden in blast furnace was investigated.The chemical compositions of the reduced burden were determined.The results show that the Fe aggregates obviously with the increasing of the H₂ content in the reducing gas.The weight loss rate,the ...

Physical Simulation of Bubble Behavior in Liquid Steel Under the Condition of High Pressure and Bottom Blowing

Zhao Dingguo, Guo Fujian, Wang Shuhuan, Gao Aimin

2016, 37(2): 108-112. doi: 10.7513/j.issn.1004-7638.2016.02.019

Abstract(69) PDF(1)

Abstract:
In order to explore the existence form and movement form of the gas in liquid metal under the condition of high pressure,a serial of water model experiments had been carried to obtain the effect of pressure and bottom flow rate on the shape,diameter,quantity of bubble and slag eye area.The experimen...

Effect of Orifice Spacing on the Impact Area of Molten Bath under Gas Jet Sprayed from Oxygen Lance

Tang Guozhang, Feng Shuai, Ceng Yanan, Li Junguo

2016, 37(2): 113-120. doi: 10.7513/j.issn.1004-7638.2016.02.020

Abstract(45) PDF(0)

Abstract:
Based on the design and technology parameters of four-hole oxygen lance applied in an steelmaking workshop,influence of orifice spacing,lance level and syncretizing length on the impact area of molten bath under gas jet sprayed from non-variable angle and variable angle four-hole oxygen lance were s...

Effect of Nitrogen on the Vanadium Precipitation Behavior of Higher Yield Strength Weathering Steels

Liu Qingchun, Yong Qilong, Zheng Zhiwang

2016, 37(2): 121-124. doi: 10.7513/j.issn.1004-7638.2016.02.021

Abstract(72) PDF(1)

Abstract:
The separate addition or combined addition of microalloy elements based on common weathering steel is usually applied in producing higher yield strength weathering steels.The target-oriented researches on the vanadium-containing weathering steels were conducted in this paper that combined with the a...

Solidification Structure and Inclusions of Ti-containing FeCrAl Stainless Steel

Han Zhibiao, Liu Jianhua, He Yang

2016, 37(2): 125-132. doi: 10.7513/j.issn.1004-7638.2016.02.022

Abstract(67) PDF(0)

Abstract:
The precipitation of TiN and AlN in FeCrAl stainless steel were calculated using Thermo-Calc software.The results indicated that the Ti content should be controlled around 0.08%.The ratios of central equiaxed grain in longitudinal and cross section firstly rise then decreased with Ti content.When Ti...

Effect of Heating Temperature on the Growth of Austenite Grain of Titanium Microalloyed Steel

Luo Xu, Kang Yonglin, Li Junhong

2016, 37(2): 133-138. doi: 10.7513/j.issn.1004-7638.2016.02.023

Abstract(118) PDF(0)

Abstract:
The Ti microalloyed steel was heated in an electric furnace up to the temperature ranging from 850℃ to 1 250℃ and heldfor 30 min.The behavior of austenite grain growth and the solid solution of Ti were investigated by observing the microstructure of austenite grain and the distribution of precipitat...

Analysis on Surface Upwarp Defects of Heat-resistant Stainless Steel Plate 310S

Li Yufeng, Liu Tianzeng, Li Hongliang, Li Jucang

2016, 37(2): 139-143. doi: 10.7513/j.issn.1004-7638.2016.02.024

Abstract(71) PDF(0)

Abstract:
Surface upwarp defects of heat-resistant stainless steel plate 310 S were investigated by means of optical microscope(OM) and scan electron microscope(SEM).The results show that the main causes of surface upwarp defects are the protective slag entrapped in the process of casting and iron oxide press...

Analysis on Tension Fracture Separation of the Steel Plate for Shipbuilding

Yang Huixian

2016, 37(2): 144-148. doi: 10.7513/j.issn.1004-7638.2016.02.025

Abstract(96) PDF(0)

Abstract:
Morphology and microstructure of separated fracture were observed by metallurgical microscope and scanning electron microscopy.The results indicate that the inclusions,the center segregation and the banded structure are the causes of separated fracture on tensile sample of high strength ship plate.C...

Analysis of Pitting Defects of Magnesium Chromate Insulating Film on Non-oriented Silicon Steel

Wang Shuanghong, Zhao Shilu

2016, 37(2): 149-153. doi: 10.7513/j.issn.1004-7638.2016.02.026

Abstract(73) PDF(2)

Abstract:
The magnesium chromate insulating coating of non-oriented silicon steel plate was prone to some pitting defects,which had affected surface quality and performance of the insulating coating.In this paper the morphology of the pitting defects coating and the components difference between the pitting d...

Cause and Improvement Measures of Common Lamination Defect of Steel Plate

Tian Yaqiang, Zhang Mingshan, Song Jinying, Chen Liansheng, Zheng Xiaoping

2016, 37(2): 154-158. doi: 10.7513/j.issn.1004-7638.2016.02.027

Abstract(312) PDF(12)

Abstract:
Lamination defects are commonly present inside steel plate,and they have a serious impact on the comprehensive properties of steel plate,in particular to the Z direction.Microstructure observation and microanalysis of lamination defects are carried out by using OM、SEM and EDS.Causes of common steel ...

2016, 37(2): 159-160.

Abstract(57) PDF(0)

Abstract:

2016 Vol. 37, No. 2