GB583411A - Improvements in or relating to the manufacture of permanent magnets - Google Patents
Improvements in or relating to the manufacture of permanent magnetsInfo
- Publication number
- GB583411A GB583411A GB883841A GB883841A GB583411A GB 583411 A GB583411 A GB 583411A GB 883841 A GB883841 A GB 883841A GB 883841 A GB883841 A GB 883841A GB 583411 A GB583411 A GB 583411A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per
- alloy containing
- per cent
- cobalt
- nickel
- 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
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 4
- 229910045601 alloy Inorganic materials 0.000 abstract 4
- 239000000956 alloy Substances 0.000 abstract 4
- 238000001816 cooling Methods 0.000 abstract 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 abstract 2
- 230000032683 aging Effects 0.000 abstract 2
- 239000010941 cobalt Substances 0.000 abstract 2
- 229910017052 cobalt Inorganic materials 0.000 abstract 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract 2
- 239000010949 copper Substances 0.000 abstract 2
- 229910052802 copper Inorganic materials 0.000 abstract 2
- 229910052759 nickel Inorganic materials 0.000 abstract 2
- 229910052710 silicon Inorganic materials 0.000 abstract 2
- 239000010703 silicon Substances 0.000 abstract 2
- 229910052726 zirconium Inorganic materials 0.000 abstract 2
- 229910000640 Fe alloy Inorganic materials 0.000 abstract 1
- 229910000990 Ni alloy Inorganic materials 0.000 abstract 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- -1 aluminium cobalt nickel Chemical compound 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000010936 titanium Substances 0.000 abstract 1
- 229910052719 titanium Inorganic materials 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
- H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Hard Magnetic Materials (AREA)
Abstract
In the manufacture of an anisotropic permanent magnet, an iron alloy containing 6-11 per cent. of aluminium, more than 20 and up to 30 of nickel, and 14-28 of cobalt is subjected to the action of a magnetic field while it is cooling from 1,200-1,280 DEG C. down to 700-600 DEG C. and then to a precipilation or ageing treatment, e.g. by heating it to 450-700 DEG C. and holding it there for the necessary time to obtain the desired magnetic properties, before it is finally magnetised. The alloy may also contain up to 5 per cent. of copper, up to 5 of titanium, up to 5 of silicon or up to 1 of zirconium or a total of two or more of such elements up to 10 per cent. The cooling may be effected at an average rate of 1/2 DEG -15 DEG C. per second as for e.g., the maximum cooling rate for an aluminium cobalt nickel alloy containing 21 per cent. of nickel is 10 DEG C. per second, for an alloy containing silicon at less than 10 DEG C. per second and for an alloy containing zirconium less than 1 DEG C. per second. The copper and cobalt may be introduced into the alloy as described in Specification 450,431. The ageing may be carried out in stages, the first in the upper region of the range, e.g., 5-8 hours at a temperature above 600 DEG C., e.g., 650 DEG C. and the second at a lower temperature, below 600 DEG C., e.g., 550 DEG C. for 10-20 hours. Specifications 478,127, 522,731, 569,654 and 581,402 also are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB883841A GB583411A (en) | 1941-07-12 | 1941-07-12 | Improvements in or relating to the manufacture of permanent magnets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB883841A GB583411A (en) | 1941-07-12 | 1941-07-12 | Improvements in or relating to the manufacture of permanent magnets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB583411A true GB583411A (en) | 1946-12-18 |
Family
ID=9860186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB883841A Expired GB583411A (en) | 1941-07-12 | 1941-07-12 | Improvements in or relating to the manufacture of permanent magnets |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB583411A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2499861A (en) * | 1948-03-16 | 1950-03-07 | Crucible Steel Co America | Permanent magnets and alloys therefor |
| US5520748A (en) * | 1993-07-27 | 1996-05-28 | Pohang Iron & Steel Co., Ltd. | Process for manufacturing Alnico system permanent magnet |
-
1941
- 1941-07-12 GB GB883841A patent/GB583411A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2499861A (en) * | 1948-03-16 | 1950-03-07 | Crucible Steel Co America | Permanent magnets and alloys therefor |
| US5520748A (en) * | 1993-07-27 | 1996-05-28 | Pohang Iron & Steel Co., Ltd. | Process for manufacturing Alnico system permanent magnet |
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