DE2335540A1 - Verfahren zur herstellung eines permanentmagneten - Google Patents
Verfahren zur herstellung eines permanentmagnetenInfo
- Publication number
- DE2335540A1 DE2335540A1 DE19732335540 DE2335540A DE2335540A1 DE 2335540 A1 DE2335540 A1 DE 2335540A1 DE 19732335540 DE19732335540 DE 19732335540 DE 2335540 A DE2335540 A DE 2335540A DE 2335540 A1 DE2335540 A1 DE 2335540A1
- Authority
- DE
- Germany
- Prior art keywords
- cooling
- rate
- cooled
- sintered
- alloy
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 238000001816 cooling Methods 0.000 claims description 46
- 229910045601 alloy Inorganic materials 0.000 claims description 41
- 239000000956 alloy Substances 0.000 claims description 41
- 238000000034 method Methods 0.000 claims description 23
- 238000005245 sintering Methods 0.000 claims description 14
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 4
- 229910000531 Co alloy Inorganic materials 0.000 claims description 3
- KPLQYGBQNPPQGA-UHFFFAOYSA-N cobalt samarium Chemical compound [Co].[Sm] KPLQYGBQNPPQGA-UHFFFAOYSA-N 0.000 claims description 3
- 229910052727 yttrium Inorganic materials 0.000 claims description 2
- 229910052684 Cerium Inorganic materials 0.000 claims 1
- 229910052688 Gadolinium Inorganic materials 0.000 claims 1
- 229910052689 Holmium Inorganic materials 0.000 claims 1
- 229910052779 Neodymium Inorganic materials 0.000 claims 1
- 229910052777 Praseodymium Inorganic materials 0.000 claims 1
- 229910052772 Samarium Inorganic materials 0.000 claims 1
- NVTIURDDNOGLPS-UHFFFAOYSA-N [Pr].[Sm].[Co] Chemical compound [Pr].[Sm].[Co] NVTIURDDNOGLPS-UHFFFAOYSA-N 0.000 claims 1
- 229910052734 helium Inorganic materials 0.000 claims 1
- 229910052746 lanthanum Inorganic materials 0.000 claims 1
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 claims 1
- 239000000203 mixture Substances 0.000 description 21
- 239000000843 powder Substances 0.000 description 18
- 229910017052 cobalt Inorganic materials 0.000 description 8
- 239000010941 cobalt Substances 0.000 description 8
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 8
- 239000007858 starting material Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- 229910000612 Sm alloy Inorganic materials 0.000 description 2
- 230000005347 demagnetization Effects 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 229910052747 lanthanoid Inorganic materials 0.000 description 1
- 150000002602 lanthanoids Chemical class 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
-
- 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
- H01F1/047—Alloys characterised by their composition
- H01F1/053—Alloys characterised by their composition containing rare earth metals
- H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
- H01F1/0555—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together
- H01F1/0557—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together sintered
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Power Engineering (AREA)
- Hard Magnetic Materials (AREA)
- Powder Metallurgy (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP47069106A JPS5113878B2 (enrdf_load_stackoverflow) | 1972-07-12 | 1972-07-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2335540A1 true DE2335540A1 (de) | 1974-01-24 |
Family
ID=13393031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19732335540 Pending DE2335540A1 (de) | 1972-07-12 | 1973-07-12 | Verfahren zur herstellung eines permanentmagneten |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3873379A (enrdf_load_stackoverflow) |
| JP (1) | JPS5113878B2 (enrdf_load_stackoverflow) |
| DE (1) | DE2335540A1 (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0126179A1 (en) * | 1983-05-21 | 1984-11-28 | Sumitomo Special Metals Co., Ltd. | Process for producing permanent magnet materials |
| EP0126802A1 (en) * | 1983-05-25 | 1984-12-05 | Sumitomo Special Metals Co., Ltd. | Process for producing of a permanent magnet |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4930474A (enrdf_load_stackoverflow) * | 1972-06-30 | 1974-03-18 | ||
| US4144105A (en) * | 1974-08-13 | 1979-03-13 | Bbc Brown, Boveri & Company, Limited | Method of making cerium misch-metal/cobalt magnets |
| FR2295130A1 (fr) * | 1974-08-27 | 1976-07-16 | Aimants Ugimag Sa | Composition pour aimants permanents de la famille " terres-rares - metaux de transition " et procede de fabrication d'un tel aimant |
| JPS5927086B2 (ja) * | 1974-10-23 | 1984-07-03 | トウホクキンゾクコウギヨウ カブシキガイシヤ | 希土類−コバルト系永久磁石の磁気誘導の温度係数調整法 |
| US4090892A (en) * | 1975-01-14 | 1978-05-23 | Bbc Brown Boveri & Company Limited | Permanent magnetic material which contains rare earth metals, especially neodymium, and cobalt process for its production and its use |
| JPS5248098A (en) * | 1975-10-15 | 1977-04-16 | Matsushita Electric Ind Co Ltd | Method of preparing permanent magnets |
| FR2415640A1 (fr) * | 1978-01-27 | 1979-08-24 | Nativelle Sa Ets | Derives d'amino-3-cardenolides, procede pour leur preparation, et medicaments les contenant |
| DE3040342C2 (de) * | 1980-10-25 | 1982-08-12 | Th. Goldschmidt Ag, 4300 Essen | Zur Herstellung eines Dauermagneten geeignete Legierung |
| CN106270505A (zh) * | 2015-06-12 | 2017-01-04 | 成都锦粼科技有限公司 | 一种粉末冶金烧结工艺的降温处理方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1752490A (en) * | 1924-09-19 | 1930-04-01 | Western Electric Co | Process for changing the properties of silicon steel |
| US3790414A (en) * | 1967-11-15 | 1974-02-05 | Matsushita Electric Ind Co Ltd | As-CAST, RARE-EARTH-Co-Cu PERMANENT MAGNET MATERIAL |
| NL6919154A (enrdf_load_stackoverflow) * | 1969-12-20 | 1971-06-22 | ||
| US3682714A (en) * | 1970-08-24 | 1972-08-08 | Gen Electric | Sintered cobalt-rare earth intermetallic product and permanent magnets produced therefrom |
| US3684593A (en) * | 1970-11-02 | 1972-08-15 | Gen Electric | Heat-aged sintered cobalt-rare earth intermetallic product and process |
| US3755007A (en) * | 1971-04-01 | 1973-08-28 | Gen Electric | Stabilized permanent magnet comprising a sintered and quenched body of compacted cobalt-rare earth particles |
-
1972
- 1972-07-12 JP JP47069106A patent/JPS5113878B2/ja not_active Expired
-
1973
- 1973-07-10 US US377919A patent/US3873379A/en not_active Expired - Lifetime
- 1973-07-12 DE DE19732335540 patent/DE2335540A1/de active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0126179A1 (en) * | 1983-05-21 | 1984-11-28 | Sumitomo Special Metals Co., Ltd. | Process for producing permanent magnet materials |
| US4975130A (en) * | 1983-05-21 | 1990-12-04 | Sumitomo Special Metals Co., Ltd. | Permanent magnet materials |
| EP0126802A1 (en) * | 1983-05-25 | 1984-12-05 | Sumitomo Special Metals Co., Ltd. | Process for producing of a permanent magnet |
| US4601875A (en) * | 1983-05-25 | 1986-07-22 | Sumitomo Special Metals Co., Ltd. | Process for producing magnetic materials |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5113878B2 (enrdf_load_stackoverflow) | 1976-05-04 |
| JPS4928897A (enrdf_load_stackoverflow) | 1974-03-14 |
| US3873379A (en) | 1975-03-25 |
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