钢铁钒钛

Effect of Coiling Temperature on Evolution of Microstructure and Texture During Annealing

Zheng Zhiwang, Chen Jie, Zhou Dan

2007, 28(1): 1-8.

Abstract(59) PDF(1)

Abstract:
According to the technical process of modified Sindzmir continuous hot-dip galvanizing lines,Gleeble-1500 annealing simulation were conducted to systematically study the effect of coiling temperature on the evolution of microstructure and recrystallization textures as well as the recrystallization t...

Study on Inclusion of Tire Cord Steel 72A During Refining Period

Wang Haitao, Xu Zhongbo, Wang Yong, Zhang Jun, Zhang Yuan, Xu Xiaodong, Luo Bogang

2007, 28(1): 9-12,17.

Abstract(97) PDF(5)

Abstract:
The [Al]_S and T[O] content of 72A and the composition and photos of the inclusions during LFVD refining period in Capital Steel were systematically analyzed.The results show that the[Al]_S content increases sharply between the end of LF and beginning of VD,after VD most of the inclusions are in the h...

Numerical Simulation of Optimizing SEN Structure for Wide Slab Caster Mold

Shen Qiaozhen, Zhu Bilian

2007, 28(1): 13-17.

Abstract(83) PDF(2)

Abstract:
The fluid flow in a wide slab continuous caster mold was simulated by a three-dimensional model set up using the commercial software PHOENICS.The effects of the nozzle bottom construction,outlet angle and immersion depth of SEN (submerged entry nozzle) on the wave amplitude of the fluid near the int...

Dynamic Recrystallization Behavior of 34CrMoV Steel

Wang Xiaofeng, Wang Lei

2007, 28(1): 18-21.

Abstract(83) PDF(2)

Abstract:
The effect of process parameters on dynamic recrystallization of 34CrMoV steel was carried out by isothermal compression testing using Gleeble-1500 thermal simulator.The results showed that the flow stress decreased with the increase of temperature while increased with the increase of strain rate.Th...

Study on Extraction of Vanadium from Acid Leaching Solution of Stone Coal with Ion Exchange Resin

Wang Bin

2007, 28(1): 22-25,52.

Abstract(80) PDF(1)

Abstract:
Several kinds of resins are tested in the ion exchange experiment to study their abilities of absorption and desorption to the vanadium from acid leaching solution of stone coal.The results show that ion exchange is an excellent method for removing the impurities and concentrating the vanadium from ...

In Situ Synthesizing of Fe-V（C,N）Composite

Yang Tinggui, Wang Yisan, Cheng Fengjun

2007, 28(1): 26-30.

Abstract(68) PDF(1)

Abstract:
A reinforced iron matrix composite with in situ V(C,N) particulates was synthesized by powder metallurgical technique.The microstructure and phase of the composite were tested with SEM and XRD.It was found that the stability of σ-(FeV) was reduced due to the presence of the activated atoms of carbon...

Effect of Vanadium on Property of Spraying Alloy Material

Lin Jiandong, Huang Ping, He Fan, Yu Guangfu, Ran Rongping

2007, 28(1): 42-47.

Abstract(53) PDF(1)

Abstract:
In order to improve the wearablility and spalling resistance of Fe60E and Ni60A spraying alloy layer, two new spraying alloys named Fe60EV and Ni60AV are developed by add 1.5%~1.8% V into Fe60E and Ni60A spraying alloy.The hardness,wearablility and spalling resistance of the new spraying alloy layer...

Control Technique of Inclusions for Rail Steel with High Cleanliness

Ceng Jianhua

2007, 28(1): 48-52.

Abstract(84) PDF(2)

Abstract:
In order to control the non-metallic inclusions in producing of rail steel with high cleanliness for 350 km/h,the research in control technique of non-metallic inclusions was carried out systematically.The removal ratio of non-metallic inclusions increased remarkably by adopting proper blowing argon...

Influence Factor of Sulphur Yield for Resulphurized Free-cutting Steel

Jiang Guanghui, Gu Longjian, Shi Zhe, Chen Yong, Ceng Jianhua, Wu Guorong

2007, 28(1): 53-55,72.

Abstract(65) PDF(1)

Abstract:
With the aim of reducing the fluctuation of sulphur content in resulphurized free-cutting steel for the change of yield during smelting,the factors of influence sulphur yield in resulphuried free-cutting steel was discussed based on the thermodynamic analysis.A series of experiment was carried out t...

Effects of Alkali Metal on BF Smelting with Vanadic Titanomagnetite and Control Measures

Jiang Sheng, Yang Dongmei

2007, 28(1): 56-60.

Abstract(95) PDF(2)

Abstract:
The enrichment by circulating of alkali metal in BF (blast furnace) smelting with vanadic titanomagnetite is analyzed.The effect of alkali metal on burden properties and BF smelting is researched,the potential hazard of alkali metal is discussed and the control measures are put forward.It is conclud...

Research on Behavior of Microwave Absorbing and Reduction Effect of Yunnan Ilmenite in Microwave Field

Lei Ying, Peng Jinhui, Huang Mengyang, Huang Ming, Zhang Shimin, Zhang Libo

2007, 28(1): 31-34,52.

Abstract(45) PDF(1)

Abstract:
The absorbing microwave characteristics of Yunnan ilmenite is measured,and the spectrum chart indicates Yunnan ilmenite has good absorbing microwave characteristic.According to above result,a new technique of reducing Yunnan ilmenite by microwave radiation is put forward.Through measure the absorbin...

Research on Dynamic Soft Reduction Technologies for Bloom Continuous Casting of Heavy Rail

Chen Yong, Yuan Hongwei, Yang Subo, Chen Lu:Ying

2007, 28(1): 35-41.

Abstract(95) PDF(2)

Abstract:
With the aim of reducing the center looseness and central segregation of heavy rail steel bloom by enhancing the metallurgical results of soft reduction (SR) employed in continuous bloom caster,a series of experiments for optimizing the process parameters of soft reduction is carried out.The influen...

Study on Surfacing Technologies of Wrapper Rolls and Deep Camber Rolls Used for Rolling Mill

Ma Yaodong, Fu Dingmei, Shen Fenggang, Liu Jingfeng

2007, 28(1): 61-67,72.

Abstract(83) PDF(1)

Abstract:
Adopting YJ356-S and YJ358-S welding wires developed by Welding Research Institute of MCC, the wrapper rolls and deep camber rolls used for rolling mill are repaired,and the surfacing technologies are particularly researched.The surfacing microstructures of wrapper rolls are tempering martensite+bai...

Study on Batch Annealing Process of Ti-IF Steel Cold Rolled Sheet

Zuo Jun

2007, 28(1): 68-72.

Abstract(75) PDF(1)

Abstract:
The recrystllization temperature of Ti-IF steel in batch annealing process is tested,the results show that the recrystllization temperature decreases as the prolongation of heat insulating time under the experimental condition.The recrystllization temperature are 650℃and 640℃when the heating insulat...

2007, 28(1): 73-76.

Abstract(60) PDF(1)

Abstract:

2007 Vol. 28, No. 1