钢铁钒钛

Study on Microstructure and Mechanical Properties of V-N Microalloyed Heavy Section H Beam and Precipitates in the Steels

CHENG Ding, PAN Tao, ZHANG Yongquan, WANG Enrui

2008, 29(3): 1-6.

Abstract(99) PDF(2)

Abstract:
There apt to be different mechanical performance in different positions of high strength heavy section H beam.In this paper the effect of V-N microalloying on section homogeneiey of mechanical properties of H beam is studied.The result shows that V-N microalloying helps to improve section homogeneit...

Study on Characteristics of As-cast Structure of High Strength Steels Microalloyed with Ti by Thin Slab Casting and Direct Rolling Process

SU Liang, MAO Xinping, TIAN Naiyuan, LIN Zhenyuan

2008, 29(3): 7-10.

Abstract(90) PDF(1)

Abstract:
The as-cast structure,chemical composition segregation,dendrite arm spacing and inclusions of the high strength steels microalloyed with Titanium were investigated.The results show that there is no difference between CSP slab and conventional cast slab for macrostructure.However,the macrostructure o...

Effects of Niobium Microalloying on the Microstructure and Properties of Low Carbon Aluminum-killed Steel Sheet

ZHENG Zhiwang

2008, 29(3): 11-16.

Abstract(87) PDF(1)

Abstract:
Effects of microalloying of 0.017% niobium on the microstructure and properties of low carbon aluminum-killed steel sheet were investigated by analyzing its microstructure and properties in as hot-rolled and as annealed conditions as well as its recrystallization behavior during annealing at differe...

Research on Non-metallic Inclusions of Gas Cylinder Steel

GAO Jinguo, LI Jingshe, TANG Haiyan, JIANG Guilian, YAO Jiahua

2008, 29(3): 17-21.

Abstract(122) PDF(2)

Abstract:
Aiming at gas cylinder steel produced by EAF-LF-VD-CC route in a domestic steel mill,the quantity and changes of total oxygen,microinclusions and macroinclusions in the liquid steel at different steps of total process were studied by the way of sampling systematically and comprehensive analysis.The ...

Study on Pulverized Coal with Mixture Additive Used for Blast Furnace in Laboratory

PENG Qichun, ZHOU Fei, GUO Yibin

2008, 29(3): 22-26.

Abstract(71) PDF(1)

Abstract:
In order to strengthen combustion of pulverized coal and improve combustion capability,the effect of coal combustion capability with different blending ratio of additives has been studied by TG/DSC and orthogonal experiment,which bases on the combustion-supporting mechanism of additives.The result o...

Research on Preparation of Vanadium Trioxide by Means of Fluidization

ZHANG Fan

2008, 29(3): 27-30,44.

Abstract(85) PDF(1)

Abstract:
Vanadium trioxide is prepared from reducing APV by means of fluidization.The experimental results showed that TV content of vanadium trioxide product is over 63% when reaction temperature is 700~750 ℃,reaction time is 10~15 min.By comparison with rotary kiln process,the reaction time of this method ...

Study on Ion Exchange Membrane as a Separator for All-vanadium Redox Flow Battery

RAN Hongbo

2008, 29(3): 31-34.

Abstract(134) PDF(3)

Abstract:
The physical and electrochemical properties of ion exchange membrane PE-01 and Nafion were studied in all-vanadium redox flow battery(VRB).It was shown that the ion exchange capacity(IEC) and chemical stability of Nafion membrane was better than that of PE-01 membrane.In addition,Nafion membrane wit...

Research on Recovery of Synthetic Rutile Leaching Liquor

WANG Yanhua

2008, 29(3): 35-40.

Abstract(64) PDF(1)

Abstract:
Ruthner acid regeneration device is used to recovery of synthetic rutile mother liquor.Based on a comparative analysis on steel sheet pickling solution and synthetic rutile mother liquor in respects of chemical composition,concentration,density and viscosity,parameters such as hearth temperature,air...

Application of Industrial Slag Containing TiO₂ in Fettling Mix for Converter

WANG Huaibin, CANG Daqiang, HAO Jianzhang

2008, 29(3): 41-44.

Abstract(68) PDF(2)

Abstract:
Physical and chemical properties of industrial slag containing TiO₂ is analyzed,and material properties of the fettling mix for converter such as density,strength,high-temperature stability and slag corrosion resistance are studied afrer adding industrial slag containing TiO₂ into fettling mix for c...

Numerical Simulation on Level Fluctuation in Mold for Wide Slab Continuous Casting

CHEN Yang, ZHANG Jiongming

2008, 29(3): 45-50.

Abstract(130) PDF(3)

Abstract:
Based on the 150 mm×(1 600~3 250) mm wide slab caster mold as investigating object,the level fluctuation in the mold of the wide slab continuous casting was simulated by a three dimensional finite-volume model(VOF) which had been formulated according to the commercial code ANSYS CFX10.0.The effects ...

Heat Transfer Analysis for Slag Skull Thickness of Blast Furnace

LIU Zengxun, Lü Qing

2008, 29(3): 51-54.

Abstract(142) PDF(3)

Abstract:
Three dimensional heat transfer model is presented by finite element software ANSYS.Based on element birth and death technology,an iterative routine for slag skull melting is established to determine effect of process condition on slag skull thickness in steady state.The result shows that BF gas tem...

Control of Transverse Corner Cracks on Continuous Casting Slab for HSLA of Panzhihua Steel

CHEN Yong, YANG Subo, ZHU Miaoyong

2008, 29(3): 55-62.

Abstract(86) PDF(1)

Abstract:
Factors influencing transverse corner cracks in continuous casting slab,such as level fluctuation of molten steel in mold,mold taper,primary cooling,casting powder,secondary cooling,process parameters of CC,etc.,have been analyzed.Based on this,some effective countermeasures have been proposed,such ...

Quality Control of 34Mn2V Non-quenched and Tempered Steel Produced by Continuous Casting Technology

DAI Huayun, WEI Qingfeng, CAI Kesen, KE Xiaotao, LEI Xiuhua

2008, 29(3): 63-67.

Abstract(62) PDF(1)

Abstract:
The quality level of 34Mn2V steel produced by continuous casting was presented.Considering the properties and applications of 34Mn2V steel,the technologies,such as ladle Ar stirring,LF/RH refining,mold electromagnetic agitating,overheating degree control during continuous casting and light reduction...

Application of the Microwave Heating Technology in the Titanium Metallurgy

CHEN Jin, ZHANG Shimin, PENG Jinhui, CHEN Guo, HUANG Mengyang, LEI Ying

2008, 29(3): 68-72.

Abstract(92) PDF(4)

Abstract:
Based on the brief introduction of the microwave heating mechanism,the results of experiment of microwave heating technology on the titanium metallurgy were summarized and analyzed.The results show that the technology of microwave heating has a promising application prospect in the fields of ilmenit...

2008 Vol. 29, No. 3