GB676881A - Improvements in or relating to permanent magnets - Google Patents
Improvements in or relating to permanent magnetsInfo
- Publication number
- GB676881A GB676881A GB1491249A GB1491249A GB676881A GB 676881 A GB676881 A GB 676881A GB 1491249 A GB1491249 A GB 1491249A GB 1491249 A GB1491249 A GB 1491249A GB 676881 A GB676881 A GB 676881A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- total
- relating
- permanent magnets
- impurities
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Hard Magnetic Materials (AREA)
Abstract
Anisotropic magnets are formed by subjecting to the action of a magnetic field whilst cooling through the Curie point and then to ageing an alloy or sintered mass of the following composition: Ni 10-30 per cent, A1 6-11 per cent, Co 12-30 per cent, Cu 0.5-8 per cent, Ta and Nb 0.5-4.5 per cent, Fe and impurities, the remainder. The ratio of the proportions of Ta and Nb is maintained between 3 to 1 and 1 to 3. The use of the combination 1.5 per cent Nb and 1.5 per cent Ta is excluded from the scope of the invention. One or more of the elements Ag, Ti and V may be present up to 5 per cent in total. One or more of Si, S, W and Zr may be present up to 1 per cent in total. The impurities C, P, Cr, Mn and Mo should not exceed 1 per cent in total. Specifications 496,774, 634,686, 634,700 and 640,886 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1491249A GB676881A (en) | 1949-06-03 | 1949-06-03 | Improvements in or relating to permanent magnets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1491249A GB676881A (en) | 1949-06-03 | 1949-06-03 | Improvements in or relating to permanent magnets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB676881A true GB676881A (en) | 1952-08-06 |
Family
ID=10049739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1491249A Expired GB676881A (en) | 1949-06-03 | 1949-06-03 | Improvements in or relating to permanent magnets |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB676881A (en) |
-
1949
- 1949-06-03 GB GB1491249A patent/GB676881A/en not_active Expired
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