SEALING THERMOPLASTIC RESIN SHEET TO A MOUNT: REPEATED SEALING BY TWO NOTCHED SEAL MEMBERS RESULTS IN A CROSSHATCHED SEAL REGION

摘要

A process of and an apparatus for sealing a thermoplastic resin sheet to a mount such as an aluminum sheet uses seal members such as seal rollers or seal plates each having notches thereon, the notcnes on the first seal roller being intersecting to the notches on the second seal member, whereby the mount can be sealed to the sheet in a crosshatched pattern.