钢铁钒钛

2017, 38(3): 1-7.

Abstract(62) PDF(19)

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2017, 38(3): 163-164.

Abstract(58) PDF(1)

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Experimental Study on Separation of Iron and Titanium from Vanadium-titanium Iron Concentrate by Hydrochloric Acid Leaching at Atmospheric Pressure

Wu Enhui, Hou Jing, Li Jun, Huang Ping

2017, 38(3): 8-12. doi: 10.7513/j.issn.1004-7638.2017.03.001

Abstract(131) PDF(9)

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The elements of vanadium-titanium iron concentrate were selectively leached by hydrochloric acid at atmospheric pressure,and the effects of liquid-solid ratio,leaching temperature and time,and hydrochloric acid concentration on the leaching rate of iron and titanium dioxide （TiO₂） were studied. Furt...

Preparation of Ammonium Polyvanadate Using High Concentration of Vanadium Solution Containing Sodium

Guo Jike

2017, 38(3): 13-20. doi: 10.7513/j.issn.1004-7638.2017.03.002

Abstract(181) PDF(12)

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In order to resolve the technological problems of precipitation of ammonium polyvanadate （APV） by ammonium salts under acid conditions using high concentration of sodium-containing vanadium solution,the dripping method was adopted to prepare APV under acid conditions with the high concentration of s...

Hydrothermal Synthesis of Titanium Dioxide and Its Photocatalytic Properties Evaluation

Pu Hong

2017, 38(3): 21-24. doi: 10.7513/j.issn.1004-7638.2017.03.003

Abstract(264) PDF(4)

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Titanium dioxide （TiO₂） photo-catalyst was prepared via hydrothermal route from industrial titanyl sulfate solution. The obtained samples were characterized by SEM,FT-IR,XPS,nitrogen absorption-desorption test and the photocatalytic properties of the photo-catalyst were also evaluated. The results i...

Selection of Fatty Acids as Reagent for Vanadium Removal from Crude Titanium Tetrachloride

Du Ming

2017, 38(3): 25-29. doi: 10.7513/j.issn.1004-7638.2017.03.004

Abstract(103) PDF(3)

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The experiments of refining titanium tetrachloride using different fatty acids were carried out,and the samples of purified titanium tetrachloride and tailing slag for vanadium removal were analyzed.The results show that with saturated fatty acids as reagent the vanadium removal efficiency is lower ...

Study on Particles Residence Time Distribution in Low-temperature Chlorinator

Li Dongqin

2017, 38(3): 30-33. doi: 10.7513/j.issn.1004-7638.2017.03.005

Abstract(83) PDF(3)

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Based on the cold model of low-temperature chlorination furnace for Pangang titanium-bearing blast furnace slag,the conductivity method was employed to research the pulse tracer particles,and the effects of internal baffles,feed rate and apparent gas velocity on the particles Residence Time Distribu...

Effect of Sand Milling Times on the Quality of TiO₂ Initial Product

Wang Haibo, Chen Xinhong, Wu Xiaoping, Wang Bin, Luo Zhiqiang

2017, 38(3): 34-37. doi: 10.7513/j.issn.1004-7638.2017.03.006

Abstract(94) PDF(4)

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The influence of sand milling times on the quality of titanium dioxide （TiO₂） initial product was investigated by horizontal sand mill,using roll milling TiO₂ product as raw material and zirconia beads with different sizes as grinding media. The results show that with increase of sand milling times ...

Study on H₂TiO₃-lithium Exchanger Synthesized by Precipitation-peptization Method

Yao Qianqian, Zhou Jiabei, Zhang Liyuan, Yang Shuang, Zhou Dali

2017, 38(3): 38-44. doi: 10.7513/j.issn.1004-7638.2017.03.007

Abstract(176) PDF(7)

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A novel inorganic precipitation-peptization method was proposed to synthesize Li₂TiO₃ in this work.TiOSO₄ and CH3COOLi were employed as lithium and titanium sources respectively,and H₂O₂ was used as complexing agent resulted in titanium-lithium sol system via precipitation-peptization method,and the...

Experimental Study of Vacuum Electromagnetic Levitation Refining of TiAl Intermetallic Alloy

Ma Lan, Yang Shaoli, Piao Rongxun, Zhong Kaiwen

2017, 38(3): 45-51. doi: 10.7513/j.issn.1004-7638.2017.03.008

Abstract(64) PDF(1)

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Refining of crude Ti Al based alloy which was obtained through aluminothermic reduction of acid-soluble titanium slag in Panzhihua was carried out using vacuum electromagnetic levitation melting furnace. Phase composition,distribution of alloy elements in micro area,microstructure and impurities con...

Preparation of Li₄Ti₅O₁₂/C Composite and Its Application to Anode Material of High Rate Lithium-ion Battery

Meng Weiwei

2017, 38(3): 52-56,77. doi: 10.7513/j.issn.1004-7638.2017.03.009

Abstract(130) PDF(4)

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The Li₄Ti₅O₁₂/C （LTO/C） composite with excellent rate performances was synthesized via a facile hydrolysis reaction followed by a low temperature heat treatment. In the hydrolysis process,the introduction of cetyltrimethylammonium bromide （CTAB） as a surfactant can significantly improve the rate per...

Effect of WC Powder Size on the Microstructure and Properties of Ti（C,N）-based Cermets

Wu Yuemei, Li Bin, Wang Xinling, Xiong Ji

2017, 38(3): 57-62. doi: 10.7513/j.issn.1004-7638.2017.03.010

Abstract(66) PDF(1)

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Mo₂C is normally added to improve the wettability between Ti （C,N） and Ni in Ti （C,N）-based cermets. Due to the increasing price of Mo₂C,much attention has been paid to Ti （C,N）-based cermets with WC addition. In this paper,the effect of WC powder size on the microstructure and properties of Ti(C_0.7...

Influence of Welding Parameters on Microstructure and Mechanical Performance of Gr1 Titanium Plate

Zang Wei, Zhang Hangyong, Yuan Xueting, Guo Longchuang, Guo Xinhu

2017, 38(3): 63-66. doi: 10.7513/j.issn.1004-7638.2017.03.011

Abstract(58) PDF(1)

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Gr1 titanium plate is commonly used for explosion metal clad plates. Great area plate needs to be tailor-welded. In order to ensure plasticity of Gr1 titanium plate satisfy requirements for subsequent explosive cladding process,different welding parameters and wire-feed modes are chosen for tailor-w...

Effects of Solidification Mode on Electrochemical and Hydrogen Storage Properties of Vanadium-based Alloy

Wu Ling

2017, 38(3): 67-70. doi: 10.7513/j.issn.1004-7638.2017.03.012

Abstract(71) PDF(1)

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The vanadium-based hydrogen storage alloy V₃TiNi_0.56Cr_0.4 was respectively prepared by solidification modes of air cooling,water cooling and liquid nitrogen cooling,and the electrochemical and hydrogen storage properties of the obtained alloy were tested and analyzed. The results show that solidific...

Study on the Flotation Separation of Modified Ti-bearing Blast Furnace Slag

Zhang Shiqiu, Wang Weiqing, Zheng Yu, Ren Pengkun, Yan Wu, Deng Jie

2017, 38(3): 71-77. doi: 10.7513/j.issn.1004-7638.2017.03.013

Abstract(93) PDF(5)

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In order to achieve the high-efficiency recovery of titanium component in the titanium-blast furnace slag,the slag had been modified in terms of its chemical compositions and treated through the process of high temperature selective precipitation. The maximum crystal size and quantity of the resulte...

Experimental Study on the Preparation of Porous Ceramic with Vanadium Tailings by Casting Method

Li Liang, Peng Fuchang

2017, 38(3): 78-82. doi: 10.7513/j.issn.1004-7638.2017.03.014

Abstract(59) PDF(1)

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Vanadium slag can be utilized as the main raw material,binder,clay,water reducing agent and pore forming agent has been added for,preparing vanadium slag porous ceramics via injection molding process. The obtainedporous ceramic filter can be used in chemical industry,furnace insulation and building ...

Parameters Optimization of Composite Sintering Titanium Magnetite Concentrate

Rao Jiating, Hu Peng, Qin Xingguo, Lin Wenkang

2017, 38(3): 83-87. doi: 10.7513/j.issn.1004-7638.2017.03.015

Abstract(63) PDF(1)

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Composite sintering process had been investigated on the high titanium magnetite concentrate in order to address the issues of low-strength,high-return-rate and low-yield of sinter,adopted. It is found out that mix moisture has the greatest effect on the integrated index,followed by height of materi...

Study on the Influence of Basicity and Roasting Temperature on the Strength of the Pellets

Pan Xiangyang, Long Yue, Xu Chenguang, Ma Baoliang, Dou Guanxiong, Zhao Bo

2017, 38(3): 88-93. doi: 10.7513/j.issn.1004-7638.2017.03.016

Abstract(160) PDF(2)

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The Tangshan local magnetite and high calcium powder mixing and balling,thermodynamic simulation with X-ray diffraction analysis,high temperature thermal analysis instrument,while the use of Fact Sage,studying on laws of basicity and temperature effects on the strength of the pellets. The results sh...

Forecast for Low Temperature Reduction Disintegration Properties of Vanadium-titanium Sinter Based on BP Neural Network

Xin Zicheng, Li Jie, Liu Weixing, Yang Aimin, Zhang Yuzhu, Wang Lili

2017, 38(3): 94-99. doi: 10.7513/j.issn.1004-7638.2017.03.017

Abstract(63) PDF(1)

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In order to improve the RDI_+3.15 of vanadium-titanium sinter,BP neural network algorithm was applied to the prediction of low temperature reduction degradation of vanadium-titanium sinter. The samples of the indicator data were divided into input samples and output samples,the input samples includes...

Effect of Grinding Mode on Hematite Pellet Properties

Jiao Guoshuai, Ju Jiantao, Ma Jie, Xing Xiangdong

2017, 38(3): 100-105. doi: 10.7513/j.issn.1004-7638.2017.03.018

Abstract(92) PDF(3)

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The main purpose of this paper is to solve the problem of how to meet the high requirement of hematite pullets process by simulation of the grate-klin process,hematite pullets were researched by different pressed ways. The results showed that it has a poor preheating properties. The compression stre...

Influence of TiO₂ on Mineral Structure and Metallurgical Properties of Blast Furnace Slag

Han Kaibin, Liu Lei, Li Zhiwei, Han Xiuli

2017, 38(3): 106-110. doi: 10.7513/j.issn.1004-7638.2017.03.019

Abstract(67) PDF(2)

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The mineral structure of blast furnace slag with different mass percent of TiO₂ （7%~16%）was studied by means of polarization microscope. The results indicate that the microstructure of blast furnace slag is mainly porphyritic or porphyritic-like texture. Phenocryst minerals mainly consist of the ric...

Quantitative Research on Cleanliness of Unsteady Casted IF Steel Slabs

Xiao Pengcheng, Zhu Liguang, Liu Haichun, Tian Fengji, Liu Zengxun, Li Meng

2017, 38(3): 111-117139. doi: 10.7513/j.issn.1004-7638.2017.03.020

Abstract(83) PDF(1)

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By means of T[O] and [N]measurement,metallographic observation and sample-electrolyzing,the cleanness of normal slabs and unsteady cast slabs of IF steel produced in a plant had been compared. Normal slabs have very high cleanness,where the w（T[O]） is 11 × 10^-6,w（N） is 18 × 10^-6 and the mean number ...

Simulation Optimization Research of Tundish under Different Pull Speeds

Sun Hua, Sun Yanhui, Huang Bo, Zhang Xichao, Bai Xuefeng

2017, 38(3): 118-123. doi: 10.7513/j.issn.1004-7638.2017.03.021

Abstract(69) PDF(1)

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In this paper,asymmetric tundish of three-strand casting construction model for different speeds and the existence of dam had been investigated. In order to further improve the production capacity of the tundish of electric furnace factory,a water simulation and numerical simulation scheme was desig...

Research on Tempering Performance of Seismic Steel with Yield Strength 550 MPa

Zhang Liqin, Tong Mingwei, Wu Kaiming

2017, 38(3): 124-129. doi: 10.7513/j.issn.1004-7638.2017.03.022

Abstract(82) PDF(1)

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Effects of tempering temperature on microstructure,precipitation and mechanical properties of Seismic building steel with yield strength of 550 MPa produced by TMCP,were researched by optical microscope,TEM and mechanical properties test. The results show that with the increase of tempering temperat...

Effects of Controlled Rolling and Cooling Technology on Microstructure and Performance of 900 MPa Grade Hot-rolled Strip Steel

Li Zhengrong

2017, 38(3): 130-134. doi: 10.7513/j.issn.1004-7638.2017.03.023

Abstract(58) PDF(1)

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Through measurement of dynamic CCT curve and experiment of controlled rolling and cooling in laboratory for 900 MPa grade hot-rolled strip steel,phase transformation during continuous cooling process and relationship of microstructure,precipitate and mechanical properties at various coiling temperat...

Effect of Titanium on Austenite Dynamic Recrystallization in Low Carbon Mn-Ⅴ Steel

Ke Xiaotao

2017, 38(3): 135-139. doi: 10.7513/j.issn.1004-7638.2017.03.024

Abstract(61) PDF(1)

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The austenite grain growth behavior and dynamic recrystallization behavior of low carbon Mn-Ⅴ steel were studied by Gleeble thermal simulation machine,TEM,SEM and quantitative analysis. The results show that the stable titanium carbonitride in steel containing titanium can prevent the effect of aust...

Experimental Study on Inclusions Control of Resulfurized Free Cutting Steel

Yu Zhe, Liu Chengjun, Min Yi, Jiang Maofa

2017, 38(3): 140-144. doi: 10.7513/j.issn.1004-7638.2017.03.025

Abstract(67) PDF(1)

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In this paper,the effects of calcium treatment and magnesium treatment on characters of inclusions in resulfurized free cutting steels were studied by high temperature experiments. The results show that the main types of inclusions after calcium treatment are Ca-Al-O + （Ca,Mn）S complex inclusions, （...

Effect of Vanadium Content on Properties of Semi-solid Gray Cast Iron Containing Vanadium for Drawing Dies

Cai Qun

2017, 38(3): 145-148. doi: 10.7513/j.issn.1004-7638.2017.03.026

Abstract(68) PDF(2)

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The wear resistance and thermal fatigue property of semi-solid gray cast iron samples containing vanadium for drawing dies with different contents of vanadium were tested and analyzed. The results show that with increasing vanadium content from 0 to 1.25%,the wear volume of the sample first decrease...

Analysis of Cracking Reasons in the Cold Heading Process of Q195 Steel

Jiao Shuai, Sun Yanhui, Zhao Yong, Li Xiaobin

2017, 38(3): 149-155. doi: 10.7513/j.issn.1004-7638.2017.03.027

Abstract(131) PDF(5)

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The surface quality,crack morphologies,microstructures,oxygen and nitrogen content and non-metallic inclusions of Q195 cold heading steel were studied by a set of analysis techniques,such as acid washing,optical microscopy,scanning electronic microscope （SEM）,and energy dispersive X-ray spectroscopy...

Study on the Mechanism of Improving the Carbides in H13 Steel by Trace Magnesium

Zhou Defu, Chang Lizhong, Zheng Fuzhou, Chen Jiashun

2017, 38(3): 156-162. doi: 10.7513/j.issn.1004-7638.2017.03.028

Abstract(61) PDF(1)

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H13 hot working die steel belongs to medium carbon steel,which have high contents of Cr,Mo and V. Therefore,during solidification these carbide forming elements will be separated into a large number of network carbide,which is difficult to be completely eliminated by subsequent heat treatment. Thust...

2017 Vol. 38, No. 3