发明名称 |
METHOD AND APPARATUS FOR CASTING MOLTEN METAL, AND CAST PIECE |
摘要 |
A method and an apparatus for continuously casting a molten metal, adapted to apply to a molten metal vibration generated by a shifting magnetic field which improves an equiaxed crystal ratio, and which can further refine an equiaxed crystal, without causing a surface discontinuity ascribed to powder inclusion to occur; and a cast piece, characterized by a casting process for manufacturing a cast piece, comprising injecting a molten metal into a casting mold while applying an electromagnetic force from an electromagnetic coil, which is provided in the vicinity of the casting mold, to the molten metal, to solidify the same, wherein a shifting magnetic field generated by a magnetic coil provided in the vicinity of a molten metal pool in the casting mold is applied to the molten metal which is being withdrawn in the downward direction as it is completely solidified, or cool-solidified in the casting mold, to a degree within a range not exceeding an absolute value of a predetermined velocity of flow, by subject the molten metal to a high and low accelerations and combining direction vectors of the same direction of high and low accelerations or direction vectors of an opposite direction thereof, to vibrate the molten metal. |
申请公布号 |
WO9929452(A1) |
申请公布日期 |
1999.06.17 |
申请号 |
WO1998JP05550 |
申请日期 |
1998.12.08 |
申请人 |
NIPPON STEEL CORPORATION;SASAI, KATSUHIRO;TAKEUCHI, EIICHI;HARADA, HIROSHI;HASEGAWA, HAJIME;TOH, TAKEHIKO;FUJISAKI, KEISUKE |
发明人 |
SASAI, KATSUHIRO;TAKEUCHI, EIICHI;HARADA, HIROSHI;HASEGAWA, HAJIME;TOH, TAKEHIKO;FUJISAKI, KEISUKE |
分类号 |
B22D11/115;(IPC1-7):B22D11/10 |
主分类号 |
B22D11/115 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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