JPS5369606A - Magnetic disc substrate - Google Patents

Magnetic disc substrate

Info

Publication number
JPS5369606A
JPS5369606A JP14507376A JP14507376A JPS5369606A JP S5369606 A JPS5369606 A JP S5369606A JP 14507376 A JP14507376 A JP 14507376A JP 14507376 A JP14507376 A JP 14507376A JP S5369606 A JPS5369606 A JP S5369606A
Authority
JP
Japan
Prior art keywords
magnetic disc
disc substrate
precipitates
alloy
formation
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
JP14507376A
Other languages
Japanese (ja)
Inventor
Takehiko Sato
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 JP14507376A priority Critical patent/JPS5369606A/en
Publication of JPS5369606A publication Critical patent/JPS5369606A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To lessen surface coarseness of a magnetic disc substrate by use of a specific Al-Zn alloy having mechanical strength without formation of a heterogeneous phase such as of precipitates on the surface.
COPYRIGHT: (C)1978,JPO&Japio
JP14507376A 1976-12-02 1976-12-02 Magnetic disc substrate Pending JPS5369606A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14507376A JPS5369606A (en) 1976-12-02 1976-12-02 Magnetic disc substrate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14507376A JPS5369606A (en) 1976-12-02 1976-12-02 Magnetic disc substrate

Publications (1)

Publication Number Publication Date
JPS5369606A true JPS5369606A (en) 1978-06-21

Family

ID=15376742

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14507376A Pending JPS5369606A (en) 1976-12-02 1976-12-02 Magnetic disc substrate

Country Status (1)

Country Link
JP (1) JPS5369606A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59157255A (en) * 1983-02-25 1984-09-06 Nippon Light Metal Co Ltd Aluminum alloy material for superprecision working to form specular surface
JPS62230947A (en) * 1986-03-31 1987-10-09 Sumitomo Light Metal Ind Ltd Aluminum alloy for magnetic disk

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59157255A (en) * 1983-02-25 1984-09-06 Nippon Light Metal Co Ltd Aluminum alloy material for superprecision working to form specular surface
JPS6232260B2 (en) * 1983-02-25 1987-07-14 Nippon Light Metal Co
JPS62230947A (en) * 1986-03-31 1987-10-09 Sumitomo Light Metal Ind Ltd Aluminum alloy for magnetic disk
JPH025810B2 (en) * 1986-03-31 1990-02-06 Sumitomo Light Metal Ind

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