| 摘要 |
Apparatus for moulding articles having microstructures comprises a chamber having a pair of oppositely lying chamber parts 6,7 of which one 6 is fixed to the framework and the other 7 is adjustable and side walls 19,23 which comprise an inner part 19 and an outer part 23, the inner part being fastened to the fixed chamber part 6 and the outer part, on the outwardly facing end face of which the adjustable chamber part 7 bears against the force of a spring 26 during the closing of the chamber, is displaceable along guide elements 18 on the fixed chamber part between two stops 27,28. Within the chamber there takes place a setting of atmospheric conditions and of temperature conditions at points in time of the closing of the chamber at which an increase in a force acting on the fixed chamber part reaches predetermined values. The object is to compensate for variations in thickness of moulding tools and of mouldable materials used in an embossing process to be carried out under a vacuum, while ensuring high dimensional stability, and to ensure different moulding depths.
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