| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a mold which can efficiently exhaust gas generated from a port core while precisely positioning the port core. <P>SOLUTION: At a portion corresponding to a core print part 11a of the port core 11 in a center mold 5, a core positioning mechanism 13 so as to insert a positioning pin 15 with a weight 16 in a gas exhausting passage 14, is arranged. When the molds are closed, the core print part 11a and a filter 12 are pushed and positioned with the weights of the positioning pin 15 and the weight 16. At the same time, resin gas generated from the port core 11 by bringing into contact with molten metal, is exhausted to the outer part through the gas exhaust passage 14. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
