钢铁钒钛

DEVELOPMENT AND PROSPECTS OF VANADIUM BEARING LOW AND MICROALLOYED STEELS IN CHINA

CAO Yin-zhi, FU Jun-yan

2000, 21(3): 1-11.

Abstract(59) PDF(1)

Abstract:
The role of vanadium in low and microalloyed steels and the main products of vanadium microalloyed steels were introduced.The development of low and microalloyed steels in China was reviewed.The prospects for the development of vanadium microalloyed steels in China were described.

STUDY OF V—N MICROALLOYED STEEL FOR REINFORCING BARS

ZHANG Yong-quan, YANG Cai-fu, LIU Shu-ping

2000, 21(3): 12-15.

Abstract(75) PDF(0)

Abstract:
The effect of adding nitrogen enriched vanadium alloy (Nitrovan 12) into 20MnSi steel was investigated on the mechanical properties of the steel above.The results show under same vanadium content condition,the tensile strength and yield strength of Nitrovan 12 addded steel increase by 135 MPa and 11...

ROLE OF NITROGEN IN NON-QUENCHED AND TEMPERED STEEL

YANG Cai-fu, ZHANG Yong-quan

2000, 21(3): 16-22.

Abstract(56) PDF(0)

Abstract:
The beneficial roles of nitrogen in non-quenched and tempered steel were described.Among Nb,V,Ti,the solubility of vanadium is high in medium carbon steel.Therefore,vanadium is the most effective and common use strengthening element for non-quenched and tempered steel.Vanadium added into the steel p...

APPLICATION OF VN12 ALLOY IN V-N MICROALLOYED STEEL

XIA Mao-sen, SUN Wei-hua, QIN Xiao-hai

2000, 21(3): 23-28.

Abstract(61) PDF(1)

Abstract:
The effect of vanadium-nitrogen combined microalloying on the mechanical properties of 20MnSiV and 16MnV microalloyed steels was investigated through the contrast tests of adding V-Fe（51.6%V） or nitrogen enriched vanadium alloy VN12（American priority product,80%V,12%N）,into 20MnSiV and 16MnV steels....

APPLICATION OF VN ALLOY IN NON-QUENCHED AND TEMPERED STEEL

LU Xiang-yang, LIU Ming, JIA Bin, DONG Jun, DONG Cheng-rui, CUI Run-jiong

2000, 21(3): 29-33.

Abstract(72) PDF(0)

Abstract:
The application of VN in F35MnVN steel was introduced.The roles of vanadium and nitrogen and nitrogen adding process into molten steel were investigated.The results show in order to bring the role of vanadium into play,the nitrogen content in vanadium bearing non-quenched and tempered steel should b...

ANALYSIS OF SECONDARY PHASE PARTICLES IN Ti-V-Nb MICROALLOYED LINEPIPE STEEL

CHEN Mao-ai, TANG Yi-min, LOU Song-nian, WU Ren-jie

2000, 21(3): 34-38.

Abstract(59) PDF(0)

Abstract:
The secondary phase particles in Ti-V-Nb microalloyed linepipe steel were investigated using carbon extraction-replica technique.The results show there are a large number of fine dispersed particles in the steel.The larger particles like square contain higher Ti and lower Nb.The smaller particles of...

ROLE OF RARE EARTH IN VANADIUM MICROALLOYED HOT ROLLED SHEET

TANG Li, WANG Yi-cheng, ZHAO An-yin, LIN Qin

2000, 21(3): 39-43.

Abstract(49) PDF(1)

Abstract:
According to contrast tests of adding rare earth or not adding rare earth into vanadium microalloyed hot rolled sheet steel,the results obtained show the rare earth treatment can clean molten steel,modify inclusions and is beneficial to improve the formability of the sheet. Also,the rare earth plays...

DEVELOPMENT OF HOT ROLLED SHEET FOR AUTO CHASIS FRAMES AT PANGANG

ZHANG Kai-jian, WANG Yi-cheng, SONG Li-qiu, YU Meng-wen

2000, 21(3): 44-48.

Abstract(62) PDF(0)

Abstract:
The hot rolled sheet used for auto chasis frames was developed by use of low C-Mn-V alloying,wire feeding,secondary steelmaking and controlled rolling techniques at Pangang.The over 20000 tons of the P510L,P440L,P420L and P370L hot rolled sheet have been produced,successfully used at autoworks. The ...

ANALYSIS OF MICROSTRUCTURE AND MECHANICAL PROPERTIES OF HOT DIP GALVANIZED SHEET PRODUCED AT PANGANG

ZHENG Zhi-wang, YU Li-ming, GUO Yong-an

2000, 21(3): 49-53.

Abstract(64) PDF(2)

Abstract:
The microstructure, texture and deep drawing property of hot dip galvanized sheet produced at Pangang were systematically analyzed. The measures to further improve the mechanical properties of the sheet were put forward.

FUNDAMENTAL STUDY OF NEW TREATMENT PROCESS FOR TITANIFEROUS BLAST FURNACE SLAG AT PANGANG USING PHASE SEPARATION

SUN Kang, WU Jian-hui, MA Yue-yu, HU Zhong-wu, WU Hao-bo, CHEN Hai-qun, YU Xiao-hua, QIN Wei-dong, LI Zhang-you

2000, 21(3): 54-58.

Abstract(58) PDF(4)

Abstract:
A new treatment process for titaniferous blast furnace slag at Pangang using phase separation was put forward. As the first part of the present work,the behavior of separation of molten substance from solid residues was examined.According to thermodynamical analysis and experimental determination,th...

STUDY OF DISCONTINUOUS LEACHING PROCESS FOR VANADIUM BEARING CLINKER

PENG Ming-fu, YANG Yang-jun, LIU Hui-qian, CHEN Zi-qing, WANG Xiao-jiang

2000, 21(3): 59-63.

Abstract(58) PDF(0)

Abstract:
The discontinuous roasted clinker leaching process for V₂O₃ production from converter vanadium bearing slag was introduced,The factors (temperature, time, number of times for leaching and washing)influencing leaching percentage were investigated. The results obtained from industrial production show ...

METALLIC IRON DISTRIBUTION IN V₂O₃ MATERIAL SYSTEM AND MEASURES TO REMOVE IRON

LI Si-zhong, PU Nian-wen, DENG Xiao-bo, ZHOU Zong-quan, LIAN Guo-qiang

2000, 21(3): 64-68.

Abstract(53) PDF(0)

Abstract:
The source of the metallic iron in V₂O₃ material system and the reasons for metallic iron concentration were analyzed.The factors influencing iron removal were discovered.The metallic iron content in beneficiated Vanadium bearing slag was decreased by means of the parameters equipment optimization a...

STUDY OF RAISING TEMPERATURE OF MOLTEN STEEL IN CONVERTER WITH QUASI—GRAPHITE

WANG Jian, NIE Mei-ying, YANG Sen-xiang, PENG Tao, LIU Xin, WANG Sheng, XIE Hai

2000, 21(3): 69-72.

Abstract(68) PDF(1)

Abstract:
The raising temperature of molten steel in converter with quasi-graphite was investigated. The results obtained from 150 heats and expanded tests show the effect of raising temperature of molten steel with quasi-graphite is marked,the temperature compensation is 40.7℃ using 1 ton quasi-graphite.The ...

2000 Vol. 21, No. 3