SEAL STRUCTURE OF PARTING SURFACE OF MOLD AND METHOD FOR FORMING PARTING SURFACE

摘要

PROBLEM TO BE SOLVED: To provide the seal structure of the parting surface of a mold which can improve the sealability between the parting surfaces of both split molds and suppress the occurrence of a burr during molding and a method for forming the parting surface. SOLUTION: An annular recess 15 is formed to surround a cavity 14 in the parting surface 12a of the first split mold 12 of the first and second split molds 12 and 13 facing each other openably/closably. A curable composition is packed in the recess 15 to form a seal member 16 contactably/separably corresponding to the parting surface 13a of the second split mold 13. An annular channel 17 is formed in the end part on the cavity 14 side of the surface of the seal member 16, and a packing material 18 is inserted into the channel 17. COPYRIGHT: (C)2006,JPO&NCIPI