发明名称 Process for manufacturing pressing dies, especially for the production of optical discs
摘要 Process for manufacturing a pressing die, especially for the production of optical discs. According to the invention, this process is characterised in that it consists in mounting a master disc (1), pre-etched by any known method, inside a support (8) in such a way that the surface of the disc coincides with that of the support, the die subsequently being produced by galvanoplastic replication of a blank (12), achieved directly on the etched surface of the master disc. <IMAGE>
申请公布号 FR2676577(A1) 申请公布日期 1992.11.20
申请号 FR19910005821 申请日期 1991.05.14
申请人 DIGIPRESS 发明人 LEDIEU JEAN;DUFRESNE JEAN-FRANCOIS
分类号 B29D17/00;G11B7/26;(IPC1-7):G11B7/26;C25D1/00 主分类号 B29D17/00
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