The Japan Steel Works, Ltd.

Honda Motor Co., Ltd.

Tadayoshi Tsukeda

Hitohisa Yamada

Yasuhiro Aoki

Ryouhei Uchida

Yuuichi Ienaga

Masahiko Muro

Kenzi Yamada

Makoto Matsuyama

The present invention relates to a casting mold having a molten metal received therein which is rotated in one direction by a rotary device with the vertical axis as a rotary axis while solidifying the molten metal for a predetermined period of time, and, after the predetermined period of time is lapsed, the casting mold is rotated in the direction opposite the direction of rotation for a predetermined period of time, and the rotation in the opposing directions is repeated so that the molten metal is solidified. The molten metal can be shaken and agitated without roughening the surface of the molten metal to uniformalize the distribution of temperature of the molten metal in the casting mold.

Casting method and casting apparatus

There is provided a magnesium alloy containing mass percent Al: 5% to 7%, Ca: 2% to 4%, Mn: 0.1% to 0.8%, Sr: 0.001% to 0.05% and rare earth elements: 0.1% to 0.6%. If necessary, an allowable content is set in each of Si, Zn, Cu, Ni, Fe and Cl of the unavoidable impurities, with Si not higher than mass percent 0.01%, Zn not higher than mass percent 0.01%, Cu not higher than mass percent 0.008%, Ni not higher than mass percent 0.001%, Fe not higher than mass percent 0.004%, and Cl not higher than mass percent 0.003%. There is also provided a magnesium alloy member injected in the die by using such an alloy.

Magnesium alloy and magnesium alloy member superior in corrosion resistance

Growing community of inventors

Hokkaido, Japan

Tadayoshi Tsukeda