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端电流时液柱高度与实测铝液柱边部磁场强度对应关系如表4所示. 实测铝液在不同磁场作用下弯月面形状及液柱高度如图4所示. 图4 不同磁场强度下铝液柱形状及液柱高度 Fig.4 Meniscus shape and height of aluminum under different magnetic intensity(f=2500Hz) 3.2.2 锡铅合金弯月面形状, 液柱高度与线..., 满足电磁铸造的要求; 而锡铅合金则需要磁场强度达到0.09T时液柱高度方能满足电磁铸造的需要. 实验结果与液柱高度计算模型计算结果基本吻合, 从而验证了计算模型的准确性. 表6 锡铅合金实验实测数据 Table 6 Experiment data of Sn-3%Pb alloy 图5 不同磁场强度下锡铅合金液柱形状及液柱高度 Fig.5 Meniscus shape......
色金属学报, 2006, 16(11): 1931-1938.JIN Bai-gang, WANG Qiang, LIU Yan, CUI Da-wei, WU Cheng-tao, WANG En-gang, HE Ji-cheng. Magnetic field distribution and molten metal meniscus behavior in soft contact electromagnetic continuous casting mold[J]. The Chinese Journal of Nonferrous Metals, 2006, 16(11): 1931-1937. [4] DENG An-yuan, WANG En-gang, HE Ji-cheng. Meniscus behavior in electromagnetic soft......
Zhi-hui, WANG En-gang, ZHANG Xing-wu, HE Ji-cheng. Effects of static magnetic field on the behavior of meniscus in a mold under argon gas injection[J]. Acta Metallurgical Sinica, 2007, 43(4): 422-426... and molten metal meniscus behavior in soft contact electromagnetic continuous casting mold[J]. The Chinese Journal of Nonferrous Metals, 2006, 16(11): 1931-1938. [8] 张林涛, 邓安元, 张兴武, 王恩刚, 赫冀成. 矩形电磁软接触连铸结......
-tao, WANG En-gang, HE Ji-cheng. Magnetic field distribution and molten metal meniscus behavior in soft contact electromagnetic continuous casting mold[J]. The Chinese Journal of Nonferrous Metals, 2006..., 王恩刚, 赫冀成. 矩形电磁软接触连铸结晶器内弯月面行为[J]. 中国有色金属学报, 2006, 16(8): 1405-1410.ZHANG Lin-tao, DENG An-yuan, ZHANG Xing-wu, WANG En-gang, HE Ji-cheng. Behavior of meniscus in soft-contact electromagnetic continuous......
of the meniscus (hm), the height of three phase line (ht, the line of the liquid, the solid and the gas intersection) and the height of the skull (hs). Hot crack will increase when any of three kinds of height... meniscus, and this will influence ht and hs. TANAKA[15] computed the melt volume effect on the melt temperature and the solidification front. The results show that with the increase of the volume, ht......
in continuous casting process. It is assumed that a slice moved from the meniscus to the air cooling zone at the casting speed. Then, the solidification process with the whole continuous casting process... at meniscus: (2) The conditions of heat transfer with the surrounding......
实验测得的纯铝,纯锡和纯铅在电流频率为50 Hz,不同输入电压下的弯月面深度值如表1所示. 表1 不同输入电压下金属液的弯月面深度 Table 1 Meniscus depth of molten metal at different input voltages 2 数值模拟 2.1 模型的建立 计算模型如图2所示,包括金属液,线圈... profile of pure aluminum in vertical section at input voltage of 20 V and current frequency of 50Hz (The left is meniscus of pure aluminum and the right is velocity vector) 为了能够控制旋转磁场对金属液的搅拌强度,本文还计算了......
of mercury into the core sample at ultra-low velocity (10-6 mL/s). The capillary pressure of monitors changes as the mercury meniscus moves from pore throats to pore bodies. The meniscus moves in sudden......
] MUGIKURA Y, SELMAN J R. Meniscus behavior of metals and oxides in molten carbonate under oxidant and reducing atmospheres Ⅱ electrode reactions[J]. Denki Kagaku, 1996, 64(6): 491-496. [53] MORTENSEN......
板设计和加工时该处留有圆角或倒角,以削弱不利影响. 图5 弯月面处铜板横截面应力分布 Fig. 5 Von Mises stress distributions of cross-sections of copper plates in meniscus (MPa): (a) Wide face; (b) Narrow face 2.3 镍层厚度影响 图6所示... of cross-sections of copper plates with deeper water slots in meniscus (MPa): (a) Wide face; (b) Narrow face 3 结论 1) 冷却结构和传热条件决定铜板热面特定力学行为规律.镍层处应力明显偏高,铜镍交界线产生应力突变,并贯穿整个热面,甚至突破900 MPa;角部气隙使远角部的应力高于......