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JPS55150134A - Magnetic disk - Google Patents

Magnetic disk

Info

Publication number
JPS55150134A
JPS55150134A JP5548079A JP5548079A JPS55150134A JP S55150134 A JPS55150134 A JP S55150134A JP 5548079 A JP5548079 A JP 5548079A JP 5548079 A JP5548079 A JP 5548079A JP S55150134 A JPS55150134 A JP S55150134A
Authority
JP
Japan
Prior art keywords
microcrack
lubricant
alumite
magnetic disk
thin film
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.)
Pending
Application number
JP5548079A
Other languages
Japanese (ja)
Inventor
Koichi Makino
Takeo Hinobayashi
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP5548079A priority Critical patent/JPS55150134A/en
Publication of JPS55150134A publication Critical patent/JPS55150134A/en
Pending legal-status Critical Current

Links

Landscapes

  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE: To obtain a magnetic disk which holds a lubricant excellently by forming a magnetic recording body on a substrate made of an Al disk after generating a microcrack on the surface by Alumite-processing and by thermal processing and then by applying a surface lubricant.
CONSTITUTION: After the surface of Al substrate 1 is Alumite-processed, thermal impact (e.g., sudden heating up to about 300°C) is applied to generate microcrack 6 in Alumite layer 4 and one layer 4, ferromagnetic-substance thin film 5 is formed (microcrack 6 is formed in thin film 5 as well along microcrack 6 in layer 4). Next, film 5 is coated with lubricant 7, which stays in microcrack 6 by impregnating to obtain a magnetic disk which maintains a lubricious surface for a long period. Additionally, lubricant 7 may be applied after protective film 3 is formed on ferromagnetic thin film 5.
COPYRIGHT: (C)1980,JPO&Japio
JP5548079A 1979-05-07 1979-05-07 Magnetic disk Pending JPS55150134A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5548079A JPS55150134A (en) 1979-05-07 1979-05-07 Magnetic disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5548079A JPS55150134A (en) 1979-05-07 1979-05-07 Magnetic disk

Publications (1)

Publication Number Publication Date
JPS55150134A true JPS55150134A (en) 1980-11-21

Family

ID=12999773

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5548079A Pending JPS55150134A (en) 1979-05-07 1979-05-07 Magnetic disk

Country Status (1)

Country Link
JP (1) JPS55150134A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5990234A (en) * 1982-11-15 1984-05-24 Hitachi Ltd Magnetic disk

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5990234A (en) * 1982-11-15 1984-05-24 Hitachi Ltd Magnetic disk
JPH056736B2 (en) * 1982-11-15 1993-01-27 Hitachi Ltd

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