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than 100 ?m. When the casting speed is 45-50 mm/min, the best grain refinement is obtained. Key words: 7050 aluminum alloy; ultrasonic power; casting speed; semi-continuous casting; solidification... [13-14]. In order to suppress the cracking tendency of the large-scale and high-alloy aluminum ingot in the process of semi-continuous casting, the solidification process can be controlled......
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during solidification and non-stationary cooling to achieve the thorough understanding and optimization of technological parameters of the continuous casting. Because no pressure is applied... as 355, 365 and 375 °C. Fig.3 Infrared photo during continuous casting 2.3.2 Selection of air pressure Due to the adhesive and friction force on rod surface in casting methods of mold......
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Solidification crack susceptibility of aluminum alloy weld metals LIU Ren-pei(刘仁培)1, DONG Zu-jue(董祖珏)2, PAN Yong-ming(潘永明)2 1. College of Materials Science and Technology, Nanjing University... cracking and so on. Of these properties, the resistance of weld metal to solidification cracking has been paid much attention to, especially for aluminum alloy[1-5]. Solidification cracking appears......
Microstructure of Zn-Al4 alloy microcastings by micro precision casting based on metal mold LI Bang-sheng(李邦盛)1, 2, REN Ming-xing(任明星)1, 2,YANG Chuang(杨 闯)1, 2, FU Heng-zhi(傅恒志)2 1. Micro/Nano...; Abstract: Metal mold micron scale precision casting technology was developed successfully, and three-dimension complicated microgear castings in micron scale were produced......
is unfavorable to heat transfer and lubrication of mold fluxes between steel shell and mold. Key words:mold fluxes for continuous casting; viscosity; solidification temperature; rare earths; [全文内容正在添加中] ...Effects of Rare Earth Oxide on Viscosity of Mold Fluxes for Continuous Casting JIANG Maofa1,Shi Peiyang1,Yao Yongkuan1,Wang Deyong1,Wang Huihua2,LIU Chengjun1 (1.College of Materials and Metallurgy......
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of metals. ZHANG et al[14] studied the effect of EMV on continuous casting of round billet of Al alloy 7075, including the solidification structures and the solute distributions in the billet, and pointed out... Solidification of horizontally continuous casting of super-thin slab in stable magnetic field and alternating current ZHANG Xiao-wei, HUANG Jin-feng, DENG Kang, REN Zhong-ming School......