| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a molding die preventing the deterioration of molding die quality by venting a proper amount of gas while maintaining the sealability of a cavity, and a method of manufacturing a foamed molding using the molding die. <P>SOLUTION: The molding die 10 includes a packing 16 surrounding a cavity C at least on either one of split surfaces 18 of two split molding dies 12, 14 that are configured to openably/closably form the cavity C inside. The packing 16 is provided in a manner that at least a part of the packing protrudes from the split surface 18. Packing grooves 22 are formed on a protruded surface of the packing 16 as gas discharge passages for discharging gas in the cavity C. Each of the packing grooves 22 is formed in such a way that its bottom 22a is at a depth exceeding the split surface 18. This makes the discharge amount of gas to be a proper amount while preventing the large amount of foam material P from entering between the split surfaces 18, 20 by maintaining a proper discharge amount of gas. <P>COPYRIGHT: (C)2012,JPO&INPIT |
