钢铁钒钛

Extraction of Valuable Components from Alkali Fused Blast Furnace Slag Containing High Concentration of Titanium by Two Leaching Methods

Wang Yan, He Siqi, Dai Qunwei

2016, 37(5): 1-8. doi: 10.7513/j.issn.1004-7638.2016.05.001

Abstract(235) PDF(7)

Abstract:
Aiming at the problems of high energy consumption and high economic cost for the extraction of TiO₂ from blast furnace slag containing high concentration of titanium by alkali fusion,the slag was roasted with sodium hydroxide at a lower temperature to extract Si and Al components firstly making TiO₂...

Investigation on Chlorination Characteristics of Panzhihua Titanium Slag in Molten Salts

Li Kaihua, Li Liang, Miao Qingdong, Sheng Zhuo

2016, 37(5): 9-14. doi: 10.7513/j.issn.1004-7638.2016.05.002

Abstract(70) PDF(4)

Abstract:
The chemical compositions,phase compositions and mineral structures of Panzhihua titanium slags with 74%,78% and 85% grade were respectively studied in this paper,mainly focusing on the differences of chemical reactions,heat release and system heat balance control in molten salts chlorination proces...

Study on the Structure of Vanadium-containing Phase and Its Evolution during the Calcination and Leaching Processes for Calcification Extraction of Vanadium

Shi Zhixin

2016, 37(5): 15-19. doi: 10.7513/j.issn.1004-7638.2016.05.003

Abstract(88) PDF(3)

Abstract:
The difference of phase transition during the processes of calcium roasting and acid leaching of vanadium slag has a significant influence on the total vanadium conversion rate.The microstructure and morphology of the vanadium-containing phases,and trend of vanadium during those phases in vanadium s...

Removal of Iron from Acid Leaching Solution of Vanadium Slag by Complexation

Zhou Weihua, Li Zhenzhen, Duan Meng, Lü Guozhi

2016, 37(5): 20-24,34. doi: 10.7513/j.issn.1004-7638.2016.05.004

Abstract(96) PDF(1)

Abstract:
In view of the high energy consumption in the process of roasting and low recovery rate of vanadium for the current vanadium extraction technologies,a new non-roasting process of pressure leaching of vanadium slag with waste acid from titanium dioxide production was put forward,and the extraction se...

Experimental Research on Deep Reduction and Grinding Separation of Low Ti-bearing Vanadium-titanium Magnetite

Li Juyan, Tang En, Qin Cen, Zhou Qiang, Fan Xiaogang, Wang Jun

2016, 37(5): 25-29. doi: 10.7513/j.issn.1004-7638.2016.05.005

Abstract(82) PDF(2)

Abstract:
Experimental research on deep reduction and grinding separation of a certain low Ti-bearing vanadium-titanium magnetite was conducted.The results show that the critical conditions for inhibiting the reduction of vanadium are reduction at 1 050℃ for 10 h.The reduction of vanadium-titanium magnetite c...

Study on Ramming Technology of the Casting Mold for Ferrovanadium Smelting

Yu Bin

2016, 37(5): 30-34. doi: 10.7513/j.issn.1004-7638.2016.05.006

Abstract(76) PDF(1)

Abstract:
Ramming characteristics of the casting mold,which is suitable for ferrovanadium smelting by tilting furnace,was studied.The effects of magnesia particle size distribution,brine ratio,ramming time,corundum slag ratio and baking program on the amount of seeping ferrovanadium in casting mold and its va...

Preparation of Bismuth Vanadate Pigment by Solid-state Calcination

Du Guangchao, Yin Danfeng, Sun Chaohui, Jing Han, Chen Haijun, Tang Hongjian, Yu Bin, Wang Tanglin

2016, 37(5): 35-42. doi: 10.7513/j.issn.1004-7638.2016.05.007

Abstract(217) PDF(7)

Abstract:
Bismuth vanadate pigment was synthesized by solid-state reaction,and the influences of raw materials,calcination temperature and time on the phase compositions,particle size,specific surface area and chromatic property of the obtained bismuth vanadate were investigated in this paper.It is indicated ...

Evolution of Inclusions in Welding Wire Steel Containing Titanium

Liu Shanxi, Zhang Caijun, Lü Da, Ma Degang, Li Shuo

2016, 37(5): 43-49. doi: 10.7513/j.issn.1004-7638.2016.05.008

Abstract(90) PDF(3)

Abstract:
In order to develop welding wire steel containing titanium named ER70S-G,the quantity,size and species of inclusions in the melting process were studied.The results show that in the process of refining,the quantity of inclusions in the steel with equivalent diameter reduces gradually,and the number ...

Effects of Complex Vanadium Carbide and Graphene Addition on the Properties of CNC Machine Tool Steel

Shu Dongpeng

2016, 37(5): 50-53. doi: 10.7513/j.issn.1004-7638.2016.05.009

Abstract(67) PDF(1)

Abstract:
The wear resistance and thermal fatigue properties of CNC machine tool steel W18Cr4V with various content of vanadium carbide and graphene were tested and analyzed.The results show that complex adding vanadium carbide and graphene was better for improving the wear resistance and thermal fatigue prop...

Effects of Ti,V and Nb on Microstructure of Welding Heat-affected Zone for DH36 Steel

Li Shaoying, Han Yihua, Zhu Liguang, Li Kun, Gao Aimin

2016, 37(5): 54-59. doi: 10.7513/j.issn.1004-7638.2016.05.010

Abstract(70) PDF(3)

Abstract:
Vacuum smelting and rolling of DH36 high strength ship plate steel were carried out in laboratory by adding different micro-alloying elements.The effects of micro-alloying elements Ti,V and Nb on the microstructure of welding heat-affected zone for DH36 were investigated by welding thermal simulatio...

Effect of Heat Treatment on the Performances of Passivation Machine Drill Made of Yttrium-containing W18Cr4V Steel

Cheng Qiong, Yao Zhao

2016, 37(5): 60-64. doi: 10.7513/j.issn.1004-7638.2016.05.011

Abstract(106) PDF(1)

Abstract:
Focusing on the inferior impact and thermal fatigue performances of drill made of W18Cr4 V steel which are often caused by serious segregation of carbides and the existence of large carbides particles in the steel,different annealing temperatures and quenching processes were employed to carry out th...

Effect of V-Ti Solid Solution Content on the Properties of Surface Modified Mold

Ji Yeyi, Lu Baoshan, Sun Shujuan, Li Qiangwei

2016, 37(5): 65-69. doi: 10.7513/j.issn.1004-7638.2016.05.012

Abstract(50) PDF(2)

Abstract:
3Cr2W8V die was surface modified by adding different contents of V-Ti solid solution reinforced phase in the laser cladding powder,and the wear resistance and thermal fatigue properties of the modified die were tested and analyzed.The results show that adding V-Ti solid solution could improve the we...

Study on the Compositions and Structure Characteristics of a Vanadium-titanium Magnetite from Panxi Region

Li Junhan, Sun Ning, Luo Jinhua

2016, 37(5): 70-75. doi: 10.7513/j.issn.1004-7638.2016.05.013

Abstract(344) PDF(15)

Abstract:
The chemical analysis,spectral analysis,X-ray diffraction phase qualitative analysis,optical microscope,scanning electron microscope and MLA analysis were employed to systematically study the chemical and mineral compositions of a vanadium-titanium magnetite(V-Ti magnetite) from Panxi area in this p...

Study on the Recycle Technology of the Slag from Refining Process of TiCl₄

Li Liang, Zhou Li, Li Dongqin, Du Ming, Long Panzhong, Lu Ping

2016, 37(5): 76-79. doi: 10.7513/j.issn.1004-7638.2016.05.014

Abstract(60) PDF(1)

Abstract:
The recycle of slag produced during the refining process of TiCl₄ in the sponge titanium factory was studied.Based on the analysis of the element compositions and physical properties of the slag from the refining process of TiCl₄,a process of preparing vanadium slag by high temperature calcination o...

Effects of Magnesium Oxide on Properties of Ceramics Made from Vanadium and Titanium Waste Residue

Chen Jie, Xu Jianan, Zhou Yang, Zhang Ping, Yang Weizhong

2016, 37(5): 80-83. doi: 10.7513/j.issn.1004-7638.2016.05.015

Abstract(53) PDF(1)

Abstract:
The domestic ceramics was prepared using industrial vanadium and titanium waste residue as raw material,and the effects of additive magnesium oxide(MgO) on the ignition loss,linear shrinkage,water absorption,porosity and rupture modulus of the ceramics were investigated with the optimum parameters f...

Research on Recovery of Iron from Natural-basicity Carbon-containing Pellets of Jarosite Residue

Cao Xiaoen, Hong Lukuo, Zhou Hemin, Tang Xiaofang, Qi Yuanhong

2016, 37(5): 84-90. doi: 10.7513/j.issn.1004-7638.2016.05.016

Abstract(89) PDF(1)

Abstract:
Jarosite residue is a solid waste originating from iron removal process of zinc hydrometallurgy,containing a certain amount of Fe and other valuable metals.In order to recovery Fe,the rotary hearth furnace direct reduction-melting process had been developed to process carbon-containing pellets of ja...

Study on Fluidity of BF Slag with High Alkali and TiO₂ Content

Tian Ye, Chen Shujun, Lü Qing, Sun Yanqin, Qie Yana, Liu Xiaojie

2016, 37(5): 91-95,111. doi: 10.7513/j.issn.1004-7638.2016.05.017

Abstract(89) PDF(3)

Abstract:
The fluidity of BF slag deteriorates as the usage proportion of the low-cost imported iron ore becomes larger,because of the higher alkali metal and TiO₂ contents,therefore,it is necessary to determine the influence of alkali metal and TiO₂ on BF slag fluidity.Detailed research results show that sla...

Effect of Hydrogen-rich on Reduction of Low Titanium Pellets in the Lumpy Zone

Zhang Qi, Liu Ran, Liu Chaoqing, Li Yanjiang, Li Jianpeng, Lü Qing

2016, 37(5): 96-101. doi: 10.7513/j.issn.1004-7638.2016.05.018

Abstract(70) PDF(1)

Abstract:
Based on the blast furnace gas-injection,the effects of different H₂ contents and temperatures on the reduction of ore in the low temperature lumpy zone are studied.The result shows that,when the temperature of reduction is 900℃,the reduction rate increases with an increase in the H₂ content.When H₂...

Design Features of 1750m³ Blast Furnace in Xichang Steel and Vanadium Co. of Angang Group

Li Yunhua, Li Jiafu

2016, 37(5): 102-105. doi: 10.7513/j.issn.1004-7638.2016.05.019

Abstract(47) PDF(1)

Abstract:
The paper summarizes the design features of 3×1 750 m³ BF stack in Xichang Steel and Vanadium.The blast furnace is a thin wall furnace shape,suitable for smelting vanadium titanium magnetite ore.Equipped with compound hearth lining with heat insulation technology,moderate cooling intensity of double...

Simulation on Temperature Distribution in Reduction Zone of Iron Ore Hydrogen DR Shaft Furnace

Bai Minghua, Han Shaofeng, Xu Kuan, Li Luye, Lü Jianchao, Zhang Weiya

2016, 37(5): 106-111. doi: 10.7513/j.issn.1004-7638.2016.05.020

Abstract(176) PDF(7)

Abstract:
Based on the technical and process parameters of BL shaft furnace,a gas-solid phases heat transfer model was built for simulation together with Fluent software.The pellets were taken as porous media and movement of pellets had been simulated through sliding mesh method.Reduction reactions involved i...

Numerical Simulation on Optimization Design of Constructional and Technical Parameters of 65 t Ladle

Yang Zhaojun, Ceng Yanan, Li Junguo

2016, 37(5): 112-117. doi: 10.7513/j.issn.1004-7638.2016.05.021

Abstract(99) PDF(1)

Abstract:
According to the practical conditions of 65 t ladle at Tangshan Iron & Steel Corp.,numerical simulation of flow field,death zone and mixing time of the ladle has been carried out by Fluent software.The results were verified with the cold model simulation,which provided theoretical and experiment...

Stress-strain Behavior of Ferrite and Bainite with Nano-precipitation in Low Carbon Steels

Naoya Kamikawa, Kensuke Sato, Goro Miyamoto, Mitsuhiro Murayama, Nobuaki Sekido, Kaneaki Tsuzaki, Tadashi Furuhara

2016, 37(5): 118-132. doi: 10.7513/j.issn.1004-7638.2016.05.022

Abstract(92) PDF(1)

Abstract:
We systematically investigate stress-strain behavior of ferrite and bainite with nano-sized vanadium carbides in low carbon steels; the ferrite samples were obtained through austenite/ferrite transformation accompanied with interphase precipitation and the bainite samples were via austenite/bainite ...

Effect of Heat Input on Microstructure and Impact Property of Heat Affected Zone for X100 Pipeline Steel

Chen You, Li Liejun, Huo Xiangdong, Chen Songjun, Peng Zhengwu

2016, 37(5): 133-138. doi: 10.7513/j.issn.1004-7638.2016.05.023

Abstract(177) PDF(4)

Abstract:
The effects of different welding heat input on microstructure and mechanical properties of heat affected zone in X100 pipeline steel was studied by means of welding thermal simulation technology,microstructure analysis and impact test.The results showed that when the heat input is greater than 45 kJ...

Effect of Rare Earth Treatment on Inclusion of E36 Slab for Shipbuilding

Wu Chunhong, Sun Lefei, Lai Chaobin, Deng Zhihao, Fu Qingxia, Yuan Chuanquan

2016, 37(5): 139-146. doi: 10.7513/j.issn.1004-7638.2016.05.024

Abstract(46) PDF(2)

Abstract:
In order to control the shape of inclusions in steel liquid and determine the rare earth Y and Ce and O,S reaction sequenceand the formation of the rare earth inclusions,the rare earth degeneration inclusion in E36 ship plate steel had been investigated through thermodynamic calculation and experime...

Research on the Mechanism of Edge Layer on Non-oriented Electrical Steel with TSCR

Du Hongbo, Dong Xinxin, Zhang Jie, Song Haiwu, Sun Lu

2016, 37(5): 147-152. doi: 10.7513/j.issn.1004-7638.2016.05.025

Abstract(66) PDF(1)

Abstract:
The non-oriented electrical steel has the advantages of high magnetic induction and energy conservation via thin slab casting and rolling(TSCR),but it usually appears layers upon the edge of steel strip.Mechanism of the edge layer had been investigated,in order to improve edge quality and product yi...

Analyze and Control for Peeling Defects on the Internal Surface of JS25Mn Steel Tube

Li Hongguang, Chen Tianming, Chen Liang, Guo Dianrong

2016, 37(5): 153-156. doi: 10.7513/j.issn.1004-7638.2016.05.026

Abstract(98) PDF(2)

Abstract:
Peeling defect on internal surface of JS25Mn steel tube have been analyzed in this paper.Highmelting non-metallic inclusions containing titanium have been found in steel,and low-melting non-metallic inclusion segregated in the center porosity defective area of billets',which are the major factors th...

Analysis and Controlling of Crack on 60Si2MnA Steel

Gao Ju, Ding Zhijun, Li Hui

2016, 37(5): 157-161,168. doi: 10.7513/j.issn.1004-7638.2016.05.027

Abstract(82) PDF(2)

Abstract:
In view of the high crack rate of 60Si2MnA steel,a systematic research on the steel crack's shape characteristics,formation causes,influencing factors,controlling measureshad been investigated,considering the practical producing and smelting process.It is found out that the internal cracks in60Si2Mn...

Analysis and Improvement of Edge Linear Defects of Tinplate

Zhou Xun, Ai Jiaojian, Wang Xiaodong, Xu Haiwei, Li Rui, Xia Yinfeng, Wang Jiangong, Yang Xiaohe, Sun Chaofan, Gao Xiaoli, Wei Lianqi

2016, 37(5): 162-168. doi: 10.7513/j.issn.1004-7638.2016.05.028

Abstract(64) PDF(1)

Abstract:
The growth mechanism and inherited characteristic of linear defect at the edge of hot rolling steel plate has been investigated in details.Based on the analysis,the effect of rolling process were discussed.SEM and EDS were used to analyze the morphology,component and structure of the defect.The resu...

2016 Vol. 37, No. 5