发明名称 METHOD FOR PRODUCING THIN PLATE GLASS MOLDING AND METHOD FOR PRODUCING DISC-LIKE MAGNETIC RECORDING MEDIUM
摘要 <P>PROBLEM TO BE SOLVED: To provide a method for producing a high quality thin plate glass mold by using a direct pressing method. Ž<P>SOLUTION: In the method for producing the thin plate glass molding GC, molten glass MG is pressed between a pressing surface 331 and an installation surface 51 using an upper die 33 having the pressing surface 331 and a lower die 50 having the installation surface 51 arranged opposite the pressin surface 331. The pressing of the molten glass MG is performed so that the temperature (°C) of the thin plate glass mold GC has a glass transition point of Tg-20 or higher and lower than Tg within 0.8 second after the pressing is finished. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
申请公布号 JP2010105874(A) 申请公布日期 2010.05.13
申请号 JP20080281048 申请日期 2008.10.31
申请人 OHARA INC 发明人 NOZAKI MORIJI
分类号 C03B11/00;C03B11/12;G11B5/84 主分类号 C03B11/00
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