| 摘要 |
<P>PROBLEM TO BE SOLVED: To ensure sufficient seal strength for glass vessels or ceramics having microscopic surface irregularities, or synthetic resin containers having an opening edge with a nonflat top face. <P>SOLUTION: A sealing apparatus welds a seal 40 to the opening edge 51 of a container 50 by pressing a heated press body 13 to the opening edge 51. The press body 13 is made of a heat resistant elastic material composed of a silicone rubber mixed with minute metal substances. With this composition, the press body 13 deforms elastically to absorb irregularities when they are present on the opening edge 51, enabling the seal 40 to be welded without any gap to secure sufficient seal strength. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
