GB568418A - Improvements in and relating to permanent magnet alloys - Google Patents
Improvements in and relating to permanent magnet alloysInfo
- Publication number
- GB568418A GB568418A GB11871/43A GB1187143A GB568418A GB 568418 A GB568418 A GB 568418A GB 11871/43 A GB11871/43 A GB 11871/43A GB 1187143 A GB1187143 A GB 1187143A GB 568418 A GB568418 A GB 568418A
- Authority
- GB
- United Kingdom
- Prior art keywords
- permanent magnet
- alloy
- relating
- july
- cobalt
- 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
- C22C9/00—Alloys based on copper
- C22C9/06—Alloys based on copper with nickel or cobalt as the next major constituent
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
568,418. Alloys; heat treatment. BRITISH THOMSON-HOUSTON CO., Ltd. July 21, 1943, No. 11871. Convention date, July 24, 1942. [Classes 72 and 82 (i)] A permanent magnet alloy contains 10-50 per cent of nickel, 5-70 of cobalt, 0.25-3.5 of lead and the remainder copper, a particular example containing 21 of nickel, 29 of cobalt, 0.75 of lead, and the remainder copper. The alloy may be heated to 1100‹ C., slowly cooled to from 800-870‹ C. at the rate of 60-240‹ C. per hour, a heavy cold reduction, e.g. of 50 to 75 per cent 'applied to the alloy which is then precipitation hardened by heating to an elevated temperature up to 1100‹ C., quenching and ageing at 575-650‹ C.. Specification 486,922 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US568418XA | 1942-07-24 | 1942-07-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB568418A true GB568418A (en) | 1945-04-04 |
Family
ID=22006888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11871/43A Expired GB568418A (en) | 1942-07-24 | 1943-07-21 | Improvements in and relating to permanent magnet alloys |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB568418A (en) |
-
1943
- 1943-07-21 GB GB11871/43A patent/GB568418A/en not_active Expired
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