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containing approximately 60 kg of metal and protected by CO2+0.5% (volume fraction) SF6 atmosphere in order to prevent severe oxidation. The melt was transferred to a semi-continuous casting machine... properties of the as-cast AZ80 magnesium alloy billet, the molten metal in the mold during semi-continuous casting is treated by ultrasonic with power of 500, 940 and 1 368 W, respectively......
Determination of wax pattern die profile for investment casting of turbine blades DONG Yi-wei, BU Kun, DOU Yang-qing, ZHANG Ding-hua Key Laboratory of Contemporary Design and Integrated... of turbine blades. Casting shrinkages at different positions of the blade which was considered nonlinear thermo-mechanical casting deformations were calculated. Based on the displacement iterative......
:The flowing process of filtered and unfiltered molten metal was investigated through hydraulic simulation. The equations for pressure loss was established according to hydraulics and mathematic deduction. The pressure loss model obtained can be used to predict the flow velocity and filling time of molten metal, and also can be used as a guidance when adapting ceramic filters for a casting system......
A Decoupling Control Model on Perturbation Method for Twin-Roll Casting Magnesium Alloy SheetWenyu Zhang1,Dongying Ju2,Hongyang Zhao2,Xiaodong Hu2,Yao Yao3,Yujun Zhang11. School of Software... and Technology Liaoning摘 要:To better understand the twin-roll casting process,based on the analysis of the solidification phenomenon,the geometry shape......
of liquid metal flow is essential during the continuous casting production of billets. This work was aimed at obtaining improved finished products via continuous casting that implements two magnetic... on the metal flow in the mold. The results revealed that casting using EMS with different directions of magnetic field in the mold and the nozzle has the best effect on the distribution of the fluid flow......
Microstructural characteristics and properties in centrifugal casting of SiCp/Zl104 composite WANG Kai(王 开)1, 2, XUE Han-song(薛寒松)1, ZOU Mao-hua(邹茂华)1, LIU Chang-ming(刘昌明)1 1. College...; Abstract: The microstructural characteristics and Brinell hardness of a cylinder produced by centrifugal casting were investigated using 20% (volume fraction) SiCp/Zl104 composites......
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metal matrix composites, stir casting is considered as the most economical, due to its simplicity, flexibility and applicability to large quantity production[6]. For magnesium matrix composite... on the Properties of Aluminum and Magnesium Matrix Composites[D]. Case Western Reserve University, 1993. [6] HASHIM J, LOONEY L, HASHIM M S J. Metal matrix composites: production by the stir casting method......
Numerical simulation for thermal flow filling process of casting CHEN Ye(陈 晔)1, ZHAO Yu-hong(赵宇宏)2, HOU Hua(侯 华)1 1. College of Materials Science and Engineering, North University of China.... With the improved algorithms, the filling processes of the valve cover castings with gravity cast and an up cylinder block casting with low-pressure cast were simulated, the simulation results......
devoted to study the cast process of titanium alloy in centrifugal casting. LIU et al[9] pointed out that the superheat of molten metal plays an important role in the full filling of titanium alloy... in vertical centrifugal casting The flowing of liquid metal can be considered group movement of mass particles. Three kinds of force act on the liquid metal in centrifugal field, including gravity......
