METHOD FOR MANUFACTURING GLASS SUBSTRATE FOR MAGNETIC RECORDING MEDIUM

PROBLEM TO BE SOLVED: To provide a method for manufacturing glass substrates for magnetic recording mediums, which simplifies facing by firmly fixing the glass substrates to each other and reducing the time required for a facing step when a laminate composed of a plurality of laminated glass substra...

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Bibliographische Detailangaben
Hauptverfasser: KINOSHITA TADASHI, FUJIMURA AKIO
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a method for manufacturing glass substrates for magnetic recording mediums, which simplifies facing by firmly fixing the glass substrates to each other and reducing the time required for a facing step when a laminate composed of a plurality of laminated glass substrates is cored and machined by facing. SOLUTION: A fluid resin 10 is applied onto the surfaces of disk-shaped glass substrates 1, and the glass substrates 1 are laminated to produce a laminate 20. Thereafter, the resin 10 is hardened to fix the glass substrates 1 to each other. Thereafter, at the center of the laminate 20, a through-hole penetrating the glass holes 1 in the thickness direction is formed. For the laminate 20 with the through-hole formed thereon, the inner peripheral end faces and outer peripheral end faces of the glass substrates 1 are polished with a polishing brush. COPYRIGHT: (C)2010,JPO&INPIT