| 摘要 |
A method of forming plastics sheets, comprises the steps of supporting a die (or substrate 12 ) between plastics sheets 36 in an enclosure, heating the plastics sheets 36 by infra-red heating element 28 , evacuating air from the enclosure, and urging the plastics sheets 36 into contact with opposite faces of the die (or substrate 12 ) while maintaining a vacuum or a substantial vacuum between the plastics sheets 36 . Apparatus for performing this method is also disclosed.
|
