| 摘要 |
Provided is a semi-molten or semi-solid molding method wherein a cavity (13) constituting a space for casting a scroll member (50) formed inside of a molding die (2) is filled, via a runner (54), with a semi-molten or semi-solid metal from a columnar part. The method is characterized in that the angle of intersection ¸1, which is the angle at which the runner (54) intersects the columnar part, is set to 97° ‰¤ ¸1 ‰¤ 135°, and/or the ratio R/ˆšS is set to 0.12 ‰¤ R/ˆšS ‰¤ 0.96, where R is the radius of curvature of a chamfered section in which the runner (54) intersects the columnar part, and ˆšS is the square root of the cross-sectional area S of the columnar part. |
