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of the most economical and widely used methods, such as pressureless infiltration [4], vacuum-assisted pressure infiltration [5], squeeze casting [6] and extrusion directly following infiltration [7... of liquid magnesium alloy into Al2O3 short fiber preform and discussed the formation mechanism of infiltration front. LONG et al [17] visualized the flow behavior of an AlSi10Mg alloy melt in chopped......
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EXPERIMENTAL RESEARCH AND NUMERICAL SIMULATION OF MOLD TEMPERATURE FIELD IN CONTINUOUS CASTING OF STEEL X.S. Zheng1,J.Z. Jin1,M.H. Sha2 (1.Research Center of Foundry Engineering, Dalian University... casting machine. Heat transfer and solidification in a watercooled mold are the most important factors during the continuous casting of steel. For studying the temperature distribution of a mold wall......
in the melt, hinders the melt flow through constricted passages in mold cavity during infiltration casting process. With a higher volume fraction of ceramic particles in the molten alloy, the melt flow is even more difficult. This can result in unfilled mold cavity. It is, therefore, necessary to increase either the infiltration pressure, to drive the melt into the mold, or the casting......
H, DADASHZADEH M, SERAJZADEH S, TAHERI A K, DAVAMI P. Simulation of melt flow in coated mould cavity in the casting process [J]. Journal of Materials Processing Technology, 2003, 142(2): 493-507. [6] MIRBAGHERI S M H, DADASHZADEH M, SERAJZADEH S, TAHERI A K, DAVAMI P. Modeling the effect of mould wall roughness on the melt flow simulation in casting process [J]. Applied Mathematical Modelling......
Trans. Nonferrous Met. Soc. China 22(2012) 1563-1567 Infiltration of A6063 aluminium alloy into SiC-B4C hybrid preforms using vacuum assisted block mould investment casting technique Alptekin... and EDX analysis. The result indicates that, by the vacuum assisted block mould investment casting technique, the infiltration of the preforms by molten metal was successfully realized. Key words......
, Shijiazhuang 050018, China摘 要:<正>The mold-filling ability of alloy melt in squeeze casting process was evaluated by means of the maximum length of Archimedes...Evaluation of the mold-filling ability of alloy melt in squeeze castingHaiying Zhang1), Shaming Xing1), Qinghua Zhang2), Jianbo Tan1,3), and Wen Liu1) 1) Semisolid Forming Research Center, Beijing......
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temperatures.The results show that infiltration of SiCp preforms by Al melt is a thermal activation process and there is an incubation period before the infiltration becomes stable.With the increase... infiltration into SiCp preforms and their impact on the infiltration rate is a combined result from viscosity and surface tension of Al melt and SiC-Al wetting ability.关键词:......
Preparation of High-Strength Al–Mg–Si/Al2O3 Composites with Lamellar Structures Using Freeze Casting and Pressureless Infiltration TechniquesPing Shen,Juwei Xi,Yujie Fu,Alateng Shaga,Chang Sun... alumina scaffolds with the initial solid loadings of 20, 25, and 30 vol% were prepared by freeze casting using 5 lm alumina powders. With the addition of 3 wt% Mg O–Al2O3–Si O2 nanopowders in a eutectic......