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NUMERICAL SIMULATION ON DEFORMATION CHARACTERISTICS OF AS WIRE BY CASTEX
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作者 Shi Zhiyuan Wang Wanjun Wang Xinhua Metallurgical Engineering School,Beijing University of Science and Technology Wen Jinglin Northeastern University 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2001年第1期5-8,17,共5页
Castex(continuous cast and extrusion)is a latest metallurgical technology Making of AS wire(aluminum clad steel wire) by Castex is an advanced bonding technology of bimetal In order to study the deformation chara... Castex(continuous cast and extrusion)is a latest metallurgical technology Making of AS wire(aluminum clad steel wire) by Castex is an advanced bonding technology of bimetal In order to study the deformation character of AS wire the numerical simulation is performed with FE method From the simulation result the following conclusions are obtained:① The simulation is carried out sequentially in three zones:initial extrusion,cavity filling and bonding ② In the first zone the shearing deformation governs the whole zone,while in that of cavity filling, the deformation mainly concentrates on transition arc of the concave mould In addition, in the last zone, the dominant deformation lies at the boundary of concave mould, surface of steel wire and entry of sizing band Due to the movement of steel wire, the direction of shear stress on its surface is opposite to that on the boundary of concave die 展开更多
关键词 CasTEX as wire FE method Elasto PLasTIC Deformation characteristic
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Simulation of Temperature and Flow Field by Three Dimension Finite ElementMethod for Castex Process of AS Wire
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作者 Zhiyuan Shi1 Wanjun Wang1 +2 位作者 Zhigang Kan2 Jinglin Wen3 Xinhua Wang1(l Metallurgy School, University of Science and Technology Beijing, Beijing 100083, China2 University of AViation and Spaceflight Beijing, Beijing 100083, China3 Northeastern University, 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 1999年第4期262-267,共6页
Castex of AS wire is a new technology of near net shape. To study the variation of temperature and velocity of liquid (or semisolid) aluminum during dynamic solidification the numerical simulation was carried out with... Castex of AS wire is a new technology of near net shape. To study the variation of temperature and velocity of liquid (or semisolid) aluminum during dynamic solidification the numerical simulation was carried out with the theory of heat-transfer and hydrodynamics by means of 3-dimensional finite element method. From simulation results, it is found that the variation of temperature and velocityis mainly influenced by the casting temperature of aluminum, rotating speed of Castex wheel and flow of cooling water. Among theseinfluencing factors, the casting temperature distributes most to the length of liquid phase metal. Moreover, the faster the metal solidifies,the higher the metal there moves with the overall trend of descending from the bottom of the wheel to the shoe wall as well as from sidewalls to the center of wheel groove. In comparison with the practical value, the simulation is reliable. 展开更多
关键词 CasTEX dynamic solidification as wire temperature and flow field finite element method
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Experiment Study on Castex Process of AS Wire
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作者 Zhiyuan Shi Wanjun Wang +1 位作者 Jinglin Wen Xinhua Wang Metallurgy School, University of Science and Technology Beijing, Beijing 100083, China School of Materials and Metallurgy,Northeastern University, Shenyang 110006, China 《Journal of University of Science and Technology Beijing》 CSCD 2001年第1期22-24,共3页
In order to optimize the Castex process of AS wire, the systematic experiments have been done for different process parameters with self-made DZJ-II 350 Castex machine. The parameters, such as casting temperature of a... In order to optimize the Castex process of AS wire, the systematic experiments have been done for different process parameters with self-made DZJ-II 350 Castex machine. The parameters, such as casting temperature of aluminum, flow of cooling water, extrusion ratio and the gap between the surface of wheel and that of the mould, have been mainly studied. The results show that with the increase of casting temperature or rotating speed of wheel the measured length of liquid metal zone increases too. However, the length of liquid metal zone decreases with the increase of the flow of cooling water. Moreover, the relationship between the extrusion ratio and the extrusion power is studied. 展开更多
关键词 CasTEX as wire PARAMETER length of liquid metal zone
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舰船交流岸电电源剖析 被引量:8
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作者 杨金成 徐正喜 《中国造船》 EI CSCD 北大核心 2005年第1期50-55,共6页
本文基于对舰船交流岸电电源现况的分析 ,指出了现今我国绝大部分岸电电源存在的主要问题 :一是交流岸电电源采用三相四线制 ,而舰船电网电源采用三相三线制 ,两者线制不匹配 ;二是交流岸电电源没有稳压装置 ,不适应舰船电网品质要求。... 本文基于对舰船交流岸电电源现况的分析 ,指出了现今我国绝大部分岸电电源存在的主要问题 :一是交流岸电电源采用三相四线制 ,而舰船电网电源采用三相三线制 ,两者线制不匹配 ;二是交流岸电电源没有稳压装置 ,不适应舰船电网品质要求。针对上述问题 ,作者进行了理论分析 ,并提出了解决方案 。 展开更多
关键词 岸电 交流 舰船 三相四线制 三相三线制 电网电源 稳压装置 品质要求 解决方案 不匹配
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