JPS5369606A - Magnetic disc substrate - Google Patents
Magnetic disc substrateInfo
- 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
Links
Landscapes
- Magnetic Record Carriers (AREA)
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
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)
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 |
-
1976
- 1976-12-02 JP JP14507376A patent/JPS5369606A/en active Pending
Cited By (4)
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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