2001 Vol. 22, No. 1

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APPLICATION AND DEVELOPMENT OF VANADIUM-TITANIUM-NIOBIUM-MICROALLOYED STEELS AT ANSHAN IRON ＆ STEEL CO.
Lin Zi-quan, Ao Lie-ge, Hao Sen
2001, 22(1): 1-6.
Abstract(88) PDF(4)
Abstract:
The roles of vanadium,titanium,niobium microalloying in steels were described.the development work done by An Steel and the prospects for V-Ti-Nb microalloyed steels were introduced.
MY HUMBLE OPINION CONCERNING OPTIMIZATION OF REINFORCED BAR FOR CONSTRUCTURE
Xu You-lin
2001, 22(1): 7-15.
Abstract(59) PDF(1)
Abstract:
The reinforced bars in China are characterized by a great variety,lower Strength,bad ductility of some reinforced bars.Therefore,the reinforced bars made in China are difficult to suit the needs of development of concrete structure.Based on the requirement of the concrete structure in the properties...
PRODUCTION OF NEW Ⅲ-GRADE 20MnSiV CONCRETE STEEL USING DIRECT VANADIUM BEARING SLAG ALLOYING
LIANG Xin-Wei, LIU Wei
2001, 22(1): 16-20.
Abstract(73) PDF(1)
Abstract:
The new Ⅲ-grade 20MnSiV concrete steel was smelted in converter with vanadium bearing ball,i.e. the mixture composed of vanadium bearing slag and reductant.The results obtained show that while low-alloy steel is made, it is feasible and economic to replace ferrovanadium or V2O5 alloying with vanadiu...
APPLICATION OF VN ALLOY IN 400MPa-GRADE REINFORCED BAR
GONG De-ping, HE Ming-xing, LUO Kai-jin, CENG Guang, MEI Cheng-yun
2001, 22(1): 21-25.
Abstract(67) PDF(1)
Abstract:
The results of tests for production of 400MPa-grade vanadium bearing concrete steel(Ⅲ-grade 20MnSiV concrete steel)using VN alloying and ferrovanadium alloying were introduced.The effects of vanadium and nitrogen microalloying on the properties and microstructure of the reinforced bar were investiga...
EFFECT OF VN ALLOYING ON MICROSTRUCTURE OF 20MnSiV CONCRETE STEEL
TANG Dai-ming, ZHANG Chun-lan, XU Ben-ping, GONG De-ping, TANG Jing
2001, 22(1): 26-29.
Abstract(52) PDF(1)
Abstract:
The microstructure and vanadium precipitates in 20MnSiV concrete steel produced using VN and Fe-V alloying were investigated.The results obtained show the more ferrite and less pearlite exist in 20MnSiV steel with VN alloying. The amount of vanadium precipitates increase obviously It is estimated th...
REVIEW AND PROSPECT OF TECHNOLOGY FOR VANADIUM RECOVERY FROM HOT METAL IN CONVERTER AT PZH STEEL
ZHANG Da-de, ZHANG Yu-dong
2001, 22(1): 30-33.
Abstract(91) PDF(3)
Abstract:
The development and optimization of the technology for vanadium recovery from hot metal at PZH Steel Were reviewed through analysis of different processes for vanadium recovery from hot metal. The train of thought on future technology for vanadium recovery from hot metal in converter at PZH Steel wa...
MICROSTRUCTURE CHARACTERISTICS OF FLASH WELDED HAZ OF COLD ROLLED LOW CARBON SHEETS
SONG Li-qiu, ZHOU Yu, LI Gui-xue
2001, 22(1): 34-39.
Abstract(77) PDF(2)
Abstract:
The microstructure,subregion micro-hardness distribution and microwidth of flash welded HAZ of cold rolled low carbon sheets having different composition （steel A and B） were investigated. The results obtained show the microstructure characteristics of the welded HAZ of the cold rolled low carbon sh...
CHARACTERISTIC ANALYSIS OF CAVITY DEFECT IN COLD ROLLED SHEET OF LOW CARBON Al-KILLED STEEL
FANG Shu-fang, QIU Tao, CENG Qing-jiang, CHEN Xing-yuan, WANG Zheng, ZHOU Yu
2001, 22(1): 40-47.
Abstract(133) PDF(1)
Abstract:
The macroexamination and micro-examination of the characteristics of the common cavity defect in cold rolled sheet of low carbon Al-killed steel were carried out. The results obtained show the cavity defects are divided into three types. The cavity formed due to normal tensile crack is related to th...
DEVELOPMENT OF DESULPHURIZER FOR RH VACUUM TREATMENT OF MOLTEN STEEL
WANG Ming-dong, YANG Su-bo, ZHAO Qi-yun, ZHANG Xiao-ling, TAN Ji-yun, LI Ying
2001, 22(1): 48-52.
Abstract(58) PDF(1)
Abstract:
The experiment for desulphurization of molten steel under vacuum condition was carried out in 10kg vacuum furnace.The results obtained show that the desulphurising capbility of CaO-CaF2 system is better than that of CaO-CaF2-Al2O3 system.The pre-melted desulphurizer is characterized by higher and st...
MATHEMATIC MODEL FOR PREDICTING TEMPERATURE OF MOLTEN STEEL FOR CONTINUOUS CASTING AT PZH STEEL
ME Qiu-yang, LI Wei, CHEN Yong, HUANG Dao-xin
2001, 22(1): 53-58.
Abstract(84) PDF(1)
Abstract:
The mathematic model for predicting temperature of molten steel for continuous casting was developed on the basis of temperature drop law of molten steel at PZH steel.Based on the results of the model calculation, a series of measures for controlling temperature of molten steel were put forward and ...
PRACTICE AND ANALYSIS OF SPLASHING SLAG IN CONVERTER AT PZH STEEL
LIU Xin, WANG Er-jun, ZHANG Huai, CHEN Kun
2001, 22(1): 59-62.
Abstract(87) PDF(1)
Abstract:
The slag splashing practice and obtained results were introduced under conditions of steelmaking from semi-steel at PZH Steel.The problems present in slag splashing in converter at PZH Steel were analyzed.
STUDY OF TEST AND MEASUREMENT METHOD FOR COEFFICIENT （mVALUE）OF STRAIN RATE SENSITIVITY
ZHANG Xiao-hua, QIU Xiao-gang, LU Guo-qing, TANG Jing
2001, 22(1): 63-68.
Abstract(66) PDF(2)
Abstract:
The coefficient （ m value） of strain rate sensitivity was determined using rate sudden changing and iso-strain rate tensile test.The effects of stretching speed change and different speed changing positions on the m value determined were discussed. The results obtained show the m value determined is...
2001, 22(1): 69-71.
Abstract(59) PDF(2)
Abstract:
2001, 22(1): 71-75.
Abstract(46) PDF(4)
Abstract:

Address：Editorial Department of Iron Vanadium Titanium Steel, Technology Development Research Center, Research Institute of Panzhihua Group Co., Ltd., No. 90 Taoyuan Street, East District, Panzhihua City, Sichuan Province (617000)

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