Title:
PRODUCTION OF MAGNETIC DISK
Document Type and Number:
Japanese Patent JPH01155516
Kind Code:
A
Abstract:
PURPOSE:To completely remove microprojections in a short period of time from a magnetic disk surface without damaging said surface by oscillating a varnishing head and load spring system at the resonance frequency of the system by means of a shaker and subjecting the same to seeking in the radial direction of the head. CONSTITUTION:The load spring 2 is fastened to a guide stage 3a. The guide stage 3a is connected to the shaker 4 via an excitation rod 3b. The shaker 4 is fixed onto a moving base 5 movable in the radial direction of the magnetic disk 8. The spring system resonates and the head 1 oscillates when a supporting spring mounting part 3a for supporting the floating head 1 which floats on the rotating magnetic disk 8 is oscillated finely in a vertical direction at the intrinsic frequency of the bending in the vertical direction of the supporting spring 2. Since the head gliding surface is thereby brought into collision against the peak parts of the projections at the frequency conforming to the resonance frequency of the spring system, the projections are efficiently removed.
Inventors:
AKAGI KYO
TSUCHIYAMA RYUJI
TSUCHIYAMA RYUJI
Application Number:
JP31192987A
Publication Date:
June 19, 1989
Filing Date:
December 11, 1987
Export Citation:
Assignee:
HITACHI LTD
International Classes:
G11B5/84; (IPC1-7): G11B5/84
Attorney, Agent or Firm:
Katsuo Ogawa (1 person outside)