WORKING METHOD AND WORKING DEVICE FOR MAGNETIC DISK

PURPOSE:To remove abnormal microprojections as well by pressing a polishing tape to the surface of a substrate or magnetic disk by the bending rigidity of the polishing tape. CONSTITUTION:The polishing tape of a specified length is passed between two pieces of rolls 2 and is pinched by nip rolls 3....

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SATAKE FUMIAKI, HYONO TADASHI
Format:	Patent
Sprache:	eng
Schlagworte:	INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PHYSICS
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Beschreibung
Zusammenfassung:	PURPOSE:To remove abnormal microprojections as well by pressing a polishing tape to the surface of a substrate or magnetic disk by the bending rigidity of the polishing tape. CONSTITUTION:The polishing tape of a specified length is passed between two pieces of rolls 2 and is pinched by nip rolls 3. The rolls 2 are rotated to rotate a substrate 5 for a magnetic disk. Working parameters are the grain size of the abrasive grains of the polishing tape, the base film thickness of the tape, the tape length between two sets of the rolls, the rotating speed of the substrate, and polishing time. The polishing of the surface with an extremely light working pressure is possible according to this constitution and the abnormal projections on the surface harmful to the characteristics of the magnetic disk are effectively removed. While the working device is simple in construction, the device is capable of executing the surface polishing with high accuracy.