JPS6486320A - Production of magnetic disk - Google Patents

Production of magnetic disk

Info

Publication number
JPS6486320A
JPS6486320A JP24479887A JP24479887A JPS6486320A JP S6486320 A JPS6486320 A JP S6486320A JP 24479887 A JP24479887 A JP 24479887A JP 24479887 A JP24479887 A JP 24479887A JP S6486320 A JPS6486320 A JP S6486320A
Authority
JP
Japan
Prior art keywords
polishing tape
parts
alloy layer
height
polishing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP24479887A
Other languages
Japanese (ja)
Other versions
JPH0568771B2 (en
Inventor
Norihiko Nakajima
Koji Ito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP24479887A priority Critical patent/JPS6486320A/en
Publication of JPS6486320A publication Critical patent/JPS6486320A/en
Publication of JPH0568771B2 publication Critical patent/JPH0568771B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

PURPOSE:To lower the floating of a magnetic head without providing a liquid lubricating agent layer by polishing the surface of an Ni-P alloy layer subjected to mirror finishing by a polishing tape, then to finish polishing by the finer polishing tape in an extremely short period of time. CONSTITUTION:The surface of the Ni-P alloy layer which is formed on a nonmagnetic substrate and is subjected to mirror finishing is polished by the rough polishing tape, by which adequate center line average height (Ra) is provided to the surface and the coefft. of friction of sufficiently lowered. This surface is polished for a short period of time by the finer polishing tape, by which the upper parts of the parts [the parts having max. height (Rmax) and the height approximate thereto] are eventually chipped away. The surface of the Ni-P alloy layer is, therefore, made into the surface from which the parts to constitute the projections are removed while the surface shapes roughened by the rough polishing tape are maintained. The magnetic disk which has the low coefft. of friction and is capable of lowering the floating of the magnetic head is thereby obtd. even if the liquid lubricating agent is not particularly used.
JP24479887A 1987-09-29 1987-09-29 Production of magnetic disk Granted JPS6486320A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24479887A JPS6486320A (en) 1987-09-29 1987-09-29 Production of magnetic disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24479887A JPS6486320A (en) 1987-09-29 1987-09-29 Production of magnetic disk

Publications (2)

Publication Number Publication Date
JPS6486320A true JPS6486320A (en) 1989-03-31
JPH0568771B2 JPH0568771B2 (en) 1993-09-29

Family

ID=17124093

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24479887A Granted JPS6486320A (en) 1987-09-29 1987-09-29 Production of magnetic disk

Country Status (1)

Country Link
JP (1) JPS6486320A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02285515A (en) * 1989-04-27 1990-11-22 Hitachi Ltd Magnetic disk, its manufacturing method, its manufacturing device, and magnetic disk device
JPH03113721A (en) * 1989-09-22 1991-05-15 Exclusive Design Co Inc Device for texturing surface and rear of hard disk used for magnetic recorder
JPH0869621A (en) * 1994-12-27 1996-03-12 Itochu Corp Production of magnetic recording disk
JPH08297837A (en) * 1996-04-26 1996-11-12 Hitachi Ltd Magnetic disk manufacturing method
JPH08297834A (en) * 1996-04-26 1996-11-12 Hitachi Ltd Magnetic disk

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62236664A (en) * 1986-03-31 1987-10-16 Kobe Steel Ltd Texturing method for magnetic disk substrate

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62236664A (en) * 1986-03-31 1987-10-16 Kobe Steel Ltd Texturing method for magnetic disk substrate

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02285515A (en) * 1989-04-27 1990-11-22 Hitachi Ltd Magnetic disk, its manufacturing method, its manufacturing device, and magnetic disk device
JPH03113721A (en) * 1989-09-22 1991-05-15 Exclusive Design Co Inc Device for texturing surface and rear of hard disk used for magnetic recorder
JPH0869621A (en) * 1994-12-27 1996-03-12 Itochu Corp Production of magnetic recording disk
JPH08297837A (en) * 1996-04-26 1996-11-12 Hitachi Ltd Magnetic disk manufacturing method
JPH08297834A (en) * 1996-04-26 1996-11-12 Hitachi Ltd Magnetic disk

Also Published As

Publication number Publication date
JPH0568771B2 (en) 1993-09-29

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees