| US 7,478,665 B2 | ||
| Method of manufacturing magnesium alloy material | ||
| Taichiro Nishikawa, Osaka (Japan); and Yoshihiro Nakai, Osaka (Japan) | ||
| Assigned to Sumitomo Electric Industries, Ltd., Osaka (Japan) | ||
| Filed on Jun. 07, 2006, as Appl. No. 11/447,868. | ||
| Application 11/447868 is a division of application No. 11/078389, filed on Mar. 14, 2005, abandoned. | ||
| Application 11/078389 is a division of application No. 10/469428, granted, now 6,904,954, previously published as PCT/JP02/03282, filed on Apr. 01, 2002. | ||
| Claims priority of application No. 2001-110128 (JP), filed on Apr. 09, 2001. | ||
| Prior Publication US 2006/0266495 A1, Nov. 30, 2006 | ||
| Int. Cl. B22D 11/06 (2006.01) | ||
| U.S. Cl. 164—482 [164/433] | 13 Claims |
| 1. A method of manufacturing a crystalline magnesium alloy plate, comprising the steps of:
melting raw materials into liquid metal, wherein the liquid metal contains no solids;
molding the liquid metal using a movable mold with a continuous mold structure;
casting at a casting rate of 0.5 meters/minute or more; and
cooling the liquid metal into the crystalline magnesium alloy plate;
wherein the thickness of the crystalline magnesium alloy plate is not less than 1 mm, and not more than 60 mm, and the width
of the plate is larger than the thickness of the plate, and
the cooling step has a cooling rate of at least 50 degrees Celsius per second, and not more than 100 degrees Celsius per second.
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