Method and apparatus for burnishing magnetic disks
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United States of America Patent
Stats
-
Jul 11, 1995
Grant Date -
N/A
app pub date -
Oct 7, 1993
filing date -
Nov 16, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
While a magnetic disk is being rotated, compressed air is jetted to corresponding positions on the two surfaces of the magnetic disk. An abrasive tape, which has tension in its longitudinal direction, is interposed between at least either one of the two surfaces of the magnetic disk and the compressed air jetted thereto such that the compressed air may now be jetted to the abrasive tape. The air pressure of the compressed air, which is jetted to the abrasive tape, and the tension on the abrasive tape are adjusted such that the abrasive tape may be formed into a bent shape having a level of rigidity appropriate for pushing the magnetic disk. The bent shape portion of the abrasive tape is brought into sliding contact with the magnetic surface of the magnetic disk, and the region of the sliding contact of the magnetic surface of the magnetic disk with the abrasive tape is thereby uniformly burnished.
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