| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To easily exhaust the gas from a cavity of a casting die, and to easily discharge a powdery burr. <P>SOLUTION: A vent 54 for the exhausting gas from the cavity 16 is formed through a second half-die 38 constituting a movable die 34 of the casting die. The vent 54 continues to a cavity defining recess 44, and includes first grooves 56a-56d so extended as inclined by a predetermined angle from a vertical direction, and second grooves 58a and 58b that continue to the first grooves 56a-56d and open at both the lower end surface and the upper end surface of the movable die 34. The second grooves 58a and 58b are preferred to be supplied with a gas for blowing, such as compressed air. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
