钢铁钒钛

Study on Reduction Kinetics of Vanadium in CaO-SiO₂-Al₂O₃-MgO-V₂O₅ Slag System

Yang Yong, Song Bo, Jiang Junpu, Cai Kaike, Yang Subo, Wen Yongcai

2005, 26(4): 1-6.

Abstract(51) PDF(1)

Abstract:
Under the laboratorial conditions, using CaO-SiO₂-Al₂O₃-MgO-V₂O₅ slag as the base slag system, kinetic study on the reaction of reducing V₂O₅ by carbon saturated molten iron was carried on.The influence of the factors, such as time, temperature, slag basicity, slag compositions, initial V₂O₅ concent...

Research on Properties of Coke in BF with High Ti Type Vanadic Titanomagnetite

Jiang Sheng

2005, 26(4): 7-11.

Abstract(69) PDF(1)

Abstract:
A series of study was took out with charging coke and tuyere coke,such as thermal effect active,coal solution loss,mineral(TiO₂,Alkali metal) and slag-iron attack,so the solution loss of coke in BF with high Ti type vanadic titanomagnetite was understood.The results show that the CRI increases and t...

Investigation on Anti-seismic Properties of HRB400 Reinforced Steel Bar

Liao Hongjun, Sheng Guangmin, Gong Shihong, Jiang Bin

2005, 26(4): 12-16.

Abstract(75) PDF(1)

Abstract:
The anti-seismic properties,i.e.the coordination of strength and ductility,sensibility of strain aging,brittleness at low temperature and weldability were systematically investigated for 20MnSiV HRB400 reinforced steel bar with the diameter of 20 mm.Test results showed the DBTT of strain aged steel ...

Study on Antibacterial property and Degradation Formaldehyde of Interior Latex Coating Modified by Nano-TiO₂

Wu Jianchun

2005, 26(4): 17-21.

Abstract(62) PDF(1)

Abstract:
After analyzed the photocatalytic theory of nano-TiO₂ and the antibacterial theory of Ag⁺ and Ce⁴⁺, interior latex coatings were modified by anatase nano-TiO₂ loading Ag⁺ and Ce⁴⁺ to prepare environmental protection coatings with air cleaning and antibbacterial ability.The qualitative antibacterial ...

Catalytic Performance of TiO₂ Nano-particles Supported Pd Catalyst

Xia Xianbo, Huang Weigang, Shen Xiaoxiao, Tu Mingjing

2005, 26(4): 22-25.

Abstract(64) PDF(1)

Abstract:
TiO₂ nano-particles supported Pd catalyst was prepared by impregnation method.The effect of rare earth element La and space velocity on the catalytic performance was investigated by using selective hydrogenation of acetylene to prepare ethylene as reaction model.The catalytic performance of RiO₂ nan...

Research Advance of Nanometer TiO₂ Photocatalysis

Zhang Wenbin, Zhou Yan

2005, 26(4): 26-33.

Abstract(68) PDF(1)

Abstract:
Based on the analyzing for crystal structure of nanometer titanium dioxide,the photocatalysis principle,preparing technique,modification and analysis methods of nano-TiO₂ were discussed.The difference of rutile type TiO₂ and anatase type TiO₂ in photocatalysis ability were presented.It was clarified...

Study on Roll of in-situ Synthesized Particulates Reinforced Ferrous Matrix Composites

Fu Hanguang, Li Mingwei, Zhang Yi

2005, 26(4): 34-38.

Abstract(66) PDF(1)

Abstract:
The usual alloy cast iron roll has low hardness and poor abrasion resistance,but the hard alloy roll with good abrasion resistance has high production cost and large brittleness,so an in-situ synthesized particulate reinforced ferrous matrix composites roll having high abrasion resistance was develo...

Study on Static Recrystallization of Ti-IF Steels in Multi-pass Ferrite Deformation

Xu Guang, Xu Chushao, Zhao Jiarong, Liu Xianjun, Xiong Junwei

2005, 26(4): 39-42.

Abstract(49) PDF(1)

Abstract:
The experiments of multi-pass ferrite hot deformation of Ti-IF steels were carried out with hot simulator.The static recrystallization fractions for test steels were determined by back-extrapolation method.The dynamic models of static recrystallization for Ti-IF steels in multi-pass ferrite deformat...

Numerical Simulation of Steel Flow Characteristics in Tundish with Argon Bottom Blowing

Zhang Meijie, Wang Houzhi, Huang Ao, Gu Huazhi, Liu Dingqun

2005, 26(4): 43-46,64.

Abstract(87) PDF(4)

Abstract:
According to the structure and the tundish operating parameters of a production plant,the flow charecteristics of steel in the tundish with turbulence inhibitor and gas curtain technique was researched by numerical simulation method.Eulerian-multiphase model and porous media model were applied in th...

Finite-element Simulation & Analysis in Steel Tube Tiny-tension Reducing Process

Lü Lihua, Ma Jinjiang, Yuan Quan, Lin Jun, Liu Weiguang, Zhang Yongwei

2005, 26(4): 47-51.

Abstract(72) PDF(2)

Abstract:
The deforming situation of seamless steel tube in the tension reducing process was simulated by means of a large-scale and common finite-element analysis software ANSYS/LS-DYNA,this simulation could present the deforming situation objectively.The simulated distribution of the stress and the strain c...

Sinulation Study on Spout Characteristics in Bottom Blowing Slag Ladle

Wang Mingyu, Zhang Li, Zhang Linnan, Sui Zhitong, Tu Ganfeng

2005, 26(4): 52-54,64.

Abstract(64) PDF(1)

Abstract:
Based on the technology of selective precipitation,titanium bearing molten slag in ladle is supposed to be oxidized by air for achieving selective enrichment of titanium component.The height and width of spouts surface have great effect on the design of slag ladle free space.In the present study,a w...

Fracture Analysis of Diffusion-bonded Joint Between Titanium Alloy and Stainless Steel

Qin Bin, Sheng Guangmin, Huang Jiawei, Zhou Bo, Qiu Shaoyu, Li Cong

2005, 26(4): 55-59.

Abstract(120) PDF(6)

Abstract:
After phase transformation diffusion bonding of TA17/0Cr18Ni9Ti, the fractures in the bonded joint were observed.The microstructure and fracture mechanism of the joint were investigated.There formed β-Ti, FeTi, Fe₂Ti and σ phase around the bonding interface since the interdiffusion of Ti, Fe and Cr ...

Three Top Products in Titanium Metallurgy Industry

Deng Guozhu

2005, 26(4): 60-64.

Abstract(59) PDF(1)

Abstract:
The development outline for three top products in the titanium metallurgy industry,sponge titanium,ferrotitanium with high titanium and nanometer titanium dioxide,was introduced.Three points of view on developing these products are presented.①The market of metal titanium is not stable,enlargement of...

Wang Yuansun

2005, 26(4): 65-66.

Abstract(61) PDF(1)

Abstract:

2005 Vol. 26, No. 4