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Publication of SG151160A1publicationCriticalpatent/SG151160A1/en
Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products
(AREA)
Surface Treatment Of Glass
(AREA)
Abstract
MANUFACTURING METHOD OF GLASS SUBSTRATE FOR MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING MEDIUM In the manufacturing method of a ring-shaped glass substrate for a magnetic recording medium, when a glass plate is processed to be a disc-shaped glass substrate 11, external shape thereof is formed by a laser scribe and a chamfering surface is formed by spherical center polishing. Therefore, a glass substrate for a magnetic recording medium with plane surfaces 14 and 17 and chamfering surfaces 15 and 18 without damages can be obtained.
SG200805710-1A2007-09-272008-07-31Manufacturing method of glass substrate for magnetic recording medium and magnetic recording medium
SG151160A1
(en)
Method of manufacturing glass blank for magnetic recording medium glass substrate,method of manufacturing magnetic recording medium glass substrate,and method of manufacturing magnetic recording medium
Glass blank, glass blank manufacturing method, manufacturing method for substrate for information recording medium, and manufacturing method for information recording medium
Methods for performing the process And manufacture of glass substrates for magnetic record plates, glass substrates for magnetic record plates. And a method for producing magnetic record plates