JPS5698461A - Manufacture of al alloy plate for magnetic disk - Google Patents
Manufacture of al alloy plate for magnetic diskInfo
- Publication number
- JPS5698461A JPS5698461A JP105580A JP105580A JPS5698461A JP S5698461 A JPS5698461 A JP S5698461A JP 105580 A JP105580 A JP 105580A JP 105580 A JP105580 A JP 105580A JP S5698461 A JPS5698461 A JP S5698461A
- Authority
- JP
- Japan
- Prior art keywords
- ingot
- rolling
- alloy
- manufacture
- alloy plate
- 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
- 229910000838 Al alloy Inorganic materials 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title 1
- 229910045601 alloy Inorganic materials 0.000 abstract 4
- 239000000956 alloy Substances 0.000 abstract 4
- 238000005096 rolling process Methods 0.000 abstract 3
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000005097 cold rolling Methods 0.000 abstract 1
- 239000000470 constituent Substances 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 abstract 1
- 238000002791 soaking Methods 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
Landscapes
- Heat Treatment Of Nonferrous Metals Or Alloys (AREA)
- Magnetic Record Carriers (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Abstract
PURPOSE: To produce the titled alloy plate which provides a disk base plate excellent in smoothness by rolling under predetermined conditions an ingot of an Al- based alloy containing specified component ratios of Mg, Cr, Ti and the like.
CONSTITUTION: The ingot of the Al-alloy is produced, the alloy containing 3W6% of Mg, 0.03W0.1% of Cr and 0.03W0.08% as indispensable constituents, wherein Mn is not more than 0.4% Fe, not more than 0.1% Si not more than 0.1%, Zn not more than 0.25%, Cu not more than 0.1% and B not more than 0.01%. The ingot is soaked at 420W500°C for 1W10hr, followed by hot breakdown rolling at a reducing rate of 30W70%. After a further soaking treatment at 500W560°C for 3W24hr, hot finish rolling and cold rolling are conducted to obtain a desired plate thickness, thereby obtaining the Al-based alloy which contains fine crystallizates uniformly dispersed in a matrix and is free of microsegregation.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP105580A JPS5698461A (en) | 1980-01-08 | 1980-01-08 | Manufacture of al alloy plate for magnetic disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP105580A JPS5698461A (en) | 1980-01-08 | 1980-01-08 | Manufacture of al alloy plate for magnetic disk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5698461A true JPS5698461A (en) | 1981-08-07 |
Family
ID=11490851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP105580A Pending JPS5698461A (en) | 1980-01-08 | 1980-01-08 | Manufacture of al alloy plate for magnetic disk |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5698461A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59193539A (en) * | 1983-04-18 | 1984-11-02 | Mitsubishi Alum Co Ltd | Al alloy for substrate of magnetic disk |
| JPS59193538A (en) * | 1983-04-18 | 1984-11-02 | Mitsubishi Alum Co Ltd | Al alloy for substrate of magnetic disk |
| JPS61246340A (en) * | 1985-04-24 | 1986-11-01 | Sky Alum Co Ltd | Aluminum alloy for magnetic disk |
| JPS62133038A (en) * | 1985-12-04 | 1987-06-16 | Showa Alum Corp | Aluminum alloy having superior machinability to mirror finished surface |
| JPS62230948A (en) * | 1986-03-31 | 1987-10-09 | Sumitomo Light Metal Ind Ltd | Aluminum alloy for magnetic disk |
| JPS6362853A (en) * | 1986-09-02 | 1988-03-19 | Kobe Steel Ltd | Manufacture of material for magnetic disk substrate |
| JPH0297639A (en) * | 1988-09-30 | 1990-04-10 | Furukawa Alum Co Ltd | Aluminum alloy for magnetic disk substrate having excellent platability |
| US5244516A (en) * | 1988-10-18 | 1993-09-14 | Kabushiki Kaisha Kobe Seiko Sho | Aluminum alloy plate for discs with improved platability and process for producing the same |
-
1980
- 1980-01-08 JP JP105580A patent/JPS5698461A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59193539A (en) * | 1983-04-18 | 1984-11-02 | Mitsubishi Alum Co Ltd | Al alloy for substrate of magnetic disk |
| JPS59193538A (en) * | 1983-04-18 | 1984-11-02 | Mitsubishi Alum Co Ltd | Al alloy for substrate of magnetic disk |
| JPS61246340A (en) * | 1985-04-24 | 1986-11-01 | Sky Alum Co Ltd | Aluminum alloy for magnetic disk |
| JPS62133038A (en) * | 1985-12-04 | 1987-06-16 | Showa Alum Corp | Aluminum alloy having superior machinability to mirror finished surface |
| JPS62230948A (en) * | 1986-03-31 | 1987-10-09 | Sumitomo Light Metal Ind Ltd | Aluminum alloy for magnetic disk |
| JPS6362853A (en) * | 1986-09-02 | 1988-03-19 | Kobe Steel Ltd | Manufacture of material for magnetic disk substrate |
| JPH0297639A (en) * | 1988-09-30 | 1990-04-10 | Furukawa Alum Co Ltd | Aluminum alloy for magnetic disk substrate having excellent platability |
| US5244516A (en) * | 1988-10-18 | 1993-09-14 | Kabushiki Kaisha Kobe Seiko Sho | Aluminum alloy plate for discs with improved platability and process for producing the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS56105846A (en) | Production of al base alloy plate for magnetic disc | |
| JPS5585658A (en) | Free cutting steel | |
| JPS5565349A (en) | Magnetic alloy | |
| JPS56130449A (en) | Amorphous cobalt alloy with very low magnetostriction and high permeability | |
| JPS56102562A (en) | Manufacture of al alloy plate for packing | |
| JPS57185961A (en) | Production of al-based alloy plate for magnetic disc substrate | |
| JPS56102565A (en) | Manufacture of al alloy plate for packing | |
| JPS5770253A (en) | Aluminum alloy for vtr cylinder | |
| JPS57101654A (en) | Preparation of al-mg series alloy | |
| JPS5747853A (en) | Manufacture of al alloy plate for magnetic disk | |
| JPS5466313A (en) | Heat hardening type aluminum alloy for forming and manufacture of sheet using the same | |
| JPS64246A (en) | Spheroidal graphite cast iron | |
| JPS56163247A (en) | Manufacture of a -mg alloy plate | |
| JPS569326A (en) | Manufacture of case hardening steel | |
| JPS572857A (en) | Aluminum alloy for die casting | |
| JPS56102568A (en) | Manufacture of aluminum alloy hard plate with superior strength and anisotropy | |
| JPS5751247A (en) | Manufacture of foil material with superior suitability to rolling into foil | |
| JPS5693823A (en) | Production of unidirectional silicon steel plate having very high magnetic flux density and low iron loss | |
| JPS5298611A (en) | Corrosion-resisting and wear-resisting aluminium alloy and its product ion process | |
| JPS575835A (en) | High strength copper alloy having excellent heat resistance for use as conductive material | |
| JPS5728669A (en) | Method for manufacturing thin as-cated spheroidal graphite cast iron casting | |
| JPS56123346A (en) | Aluminum alloy for extrusion with superior hardenability | |
| JPS57126951A (en) | Production of killed steel ingot for hot rolling | |
| JPS57126952A (en) | Production of killed steel ingot for hot rolling | |
| JPS5785928A (en) | Manufactue of nonrefined high tensile steel with superior sulfide corrosion cracking resistance |