2002 Vol. 23, No. 1

Display Method:
WATER-MODEL TEST ABOUT MOULD FLOWAGE OPITIMIZATION FOR SLAB CASTER AT PZH STEEL
ZHOU Yi-ping, YANG Su-bo, YAN Xue-mo, DAI Yun-ge, ZHANG Hua-shu, PENG Shu-dong, WU Wei
2002, 23(1): 1-5.
Abstract(57) PDF(2)
Abstract:
Water-model test about mould flowage optimization was taken at PZH Steel slab caster.It was studied that effects of operating conditions such as continuous casting speed, mould width, nozzle structure etc.on mould flowage, level fluctuation, fluid behavior and floation of inclusions.The results are ...
THE PRESENT SITUATION ANALYSIS FOR PRODUCTION CYCLES OF LADLE AT PZH STEEL
LI Li, ZHOU Rui-he, XUE Nian-fu, PEI You-cai, WANG De-kui
2002, 23(1): 6-11.
Abstract(48) PDF(1)
Abstract:
Hot state of ladles and its effects on the molten steel temperature in production cycles were studied at PZH Steel,by combining mathematical modeling with production data statistics.The main factors affecting the hot state of ladles were discovered.
STUDY OF HOT ROLLING TEMPERATURE PARAMETERS FOR MICRO-CARBON STEEL IN LABORATORY
ZHANG Kai-hua, CHANG Jun, LI Jun
2002, 23(1): 12-16.
Abstract(50) PDF(1)
Abstract:
According to the characteristics of micro-carbon steel,simulative test was taken in laboratory under the principle of "high heating temperature,high beginning rolling temperature,high final rolling temperature and low rolling temperature".The effects of heating temperature on the AlN solubility,fina...
PREPARATION TECHNOLOGY OF V2O5 SOL - GEL FROM INDUSTRIAL V2O5
YANG Shao-li, XU Chu-shao, CHEN Hou-sheng, LIAO Dai-hua
2002, 23(1): 17-20,25.
Abstract(68) PDF(1)
Abstract:
V2O5 Sol - Gel was prepared from industrial V2O5 crystal sheet by the inorganic sol - gelmethod. Viscosity variation of V2O5 sols was studied. The thermal analysis of V2O5 gels and V2O5 crys-tals was taken. The research result indicated that suitable technological parameters for preparation ofV2O5 s...
STUDY OF SLAG PROPERTY FROM Ferro Vanadium
WANG Yong-gang, YANG Feng, ZHANG Jian-hui
2002, 23(1): 21-25.
Abstract(56) PDF(1)
Abstract:
The characteristics of slag from melting high vanadium iron at Panhong was analyzed.The slag property of melting high vanadium iron was discussed.It was studied that effects of slag physico-chemical property on melting process parameter and technical-and-economic indexes.
CONTEMPORARY CONVERTER STEELMAKING TECHNOLOGIES AND DEVELOPMENTAL SUGGESTION TO PANGANG
WEN Yong-cai, YANG Sen-xiang, WANG Sheng, ZHANG Huai
2002, 23(1): 26-31.
Abstract(95) PDF(1)
Abstract:
The development history of converter steelmaking is reviewed.The main advance of steelmaking technology in different times are described.The technologies of contemporary converter steelmaking are introduced in detail.Development of converter technologies at Pangang is proposed in light of the actual...
ROLLING PROCESS DESIGN OF S49 RAIL
CHEN Ya-ping, WANG Yan-zhong, TAO Gong-ming
2002, 23(1): 32-34,55.
Abstract(65) PDF(3)
Abstract:
According the features of rail-beam plant and S49 rail section, the rolling process design of S49 rail is discussed.It is presented how to choose the pass system and determine the parameter of pass system.The rolling mill guides were designed.S49 rail was produced successfully at first test by optim...
PRECIPITATION AND GRAIN REFINEMENT IN VANADIUM-CONTAINING STEEIS
STANISLAW Zajac
2002, 23(1): 35-48.
Abstract(103) PDF(2)
Abstract:
The present work has concentrated on the roles of vanadium, nitrogen and carbon in controlling the precipitation of V(C,N) in austenite and ferrite and their effects on:(i) grain refinement by promoting the formation of intragranular ferrite, and (ii) precipitalion strengthening by interphase and ra...
Vanadium Microalloyed Forging Steels
GEORGE Krauss
2002, 23(1): 49-55.
Abstract(62) PDF(1)
Abstract:
The production processing, microstructure and properties of vanadium microalloyed forging steels with medium-carbon are introduced. The strengthening produced by vanadium enhances the strength of medium-carbon steels. As a result, no further heat treatment is required for vanadium microalloyed forgi...
DEVELOPMENT AND USE OF VANADIUM IN MICROALLOYED REINFORCING BAR-ADVANTAGES OF HIGH-STRENGTH-STEEL
D. Russwurm
2002, 23(1): 56-63.
Abstract(74) PDF(2)
Abstract:
The use of reinforcing steel and its consumption per capita a year in some European countries are introduced. The application conditions of reinforcing steels as structure materials and their advantages as reinforcement used in concrete are also described. The production routs of reinforcing steel a...
THE EFFECTS OF MICROALLOYING ELEMENTS ON CRACKING DURING CONTINUOUS CASTING
D. N、Crowther
2002, 23(1): 64-80.
Abstract(89) PDF(7)
Abstract:
To ensure the appropriate quality in finished products, it is important that defects in continuously cast products are minimised. As the use of hot charging and thin slab casting coupled with direct rolling becomes more common, it is increasingly important to produce defect-free continuously cast pr...