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Photo-engraver esp. for PCB - uses magnetic rimmed film to hold plate to be engraved and master on slidable drawer
Photo-engraver esp. for PCB - uses magnetic rimmed film to hold plate to be engraved and master on slidable drawer
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机译:照相雕刻机,特别是用于PCB-使用磁性边缘膜固定要雕刻的板并在可滑动抽屉上控制
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摘要
The photo engraving equipment carries its plate and design master in a flat bed drawer. The drawer allows full sight of the positioning of the two sheets and hence exact relative positioning. The two sheets are brought into close contact by creating a partial vacuum between them the achievement of a vacuum being assisted by a flexible film with a magnetic surround. The rectangular drawer slides on runners into the engraver once set up and has a lower crystal glass plate. This directly carries the plate (19) to be engraved and the master (20) above it. The two are held by a flexible and elastic transparent film (22) held in a magnetic rubber frame (23). Air is drawn out by a tube (25) opening close to the plate edge.
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