DE1901056A1 - Verfahren zur Herstellung von pulverfoermigen Dauermagnetwerkstoffen - Google Patents
Verfahren zur Herstellung von pulverfoermigen DauermagnetwerkstoffenInfo
- Publication number
- DE1901056A1 DE1901056A1 DE19691901056 DE1901056A DE1901056A1 DE 1901056 A1 DE1901056 A1 DE 1901056A1 DE 19691901056 DE19691901056 DE 19691901056 DE 1901056 A DE1901056 A DE 1901056A DE 1901056 A1 DE1901056 A1 DE 1901056A1
- Authority
- DE
- Germany
- Prior art keywords
- acid
- powder
- permanent magnet
- dipl
- acid solution
- 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
- 239000000463 material Substances 0.000 title claims description 23
- 238000000034 method Methods 0.000 title claims description 23
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000002253 acid Substances 0.000 claims description 42
- 239000000843 powder Substances 0.000 claims description 20
- 239000002245 particle Substances 0.000 claims description 16
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 10
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 10
- 239000000696 magnetic material Substances 0.000 claims description 9
- 229910017052 cobalt Inorganic materials 0.000 claims description 7
- 239000010941 cobalt Substances 0.000 claims description 7
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 7
- 229910020710 Co—Sm Inorganic materials 0.000 claims description 6
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 6
- 229910017604 nitric acid Inorganic materials 0.000 claims description 6
- 229960000583 acetic acid Drugs 0.000 claims description 5
- 239000012362 glacial acetic acid Substances 0.000 claims description 5
- 235000011007 phosphoric acid Nutrition 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 4
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 4
- 150000002910 rare earth metals Chemical class 0.000 claims description 4
- 229910052684 Cerium Inorganic materials 0.000 claims description 2
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical group [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 2
- 238000009499 grossing Methods 0.000 claims description 2
- 230000005415 magnetization Effects 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000011236 particulate material Substances 0.000 claims 2
- 239000000203 mixture Substances 0.000 description 12
- 239000000126 substance Substances 0.000 description 4
- 238000007654 immersion Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 229910020514 Co—Y Inorganic materials 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
- 229910001122 Mischmetal Inorganic materials 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 229910052770 Uranium Inorganic materials 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 235000015142 cultured sour cream Nutrition 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000010951 particle size reduction Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F3/00—Brightening metals by chemical means
- C23F3/04—Heavy metals
- C23F3/06—Heavy metals with acidic solutions
-
- 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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/14—Treatment of metallic powder
- B22F1/145—Chemical treatment, e.g. passivation or decarburisation
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/07—Alloys based on nickel or cobalt based on cobalt
-
- 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
- H01F1/06—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 in the form of particles, e.g. powder
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Power Engineering (AREA)
- Hard Magnetic Materials (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US70184068A | 1968-01-31 | 1968-01-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1901056A1 true DE1901056A1 (de) | 1969-08-28 |
Family
ID=24818894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19691901056 Pending DE1901056A1 (de) | 1968-01-31 | 1969-01-10 | Verfahren zur Herstellung von pulverfoermigen Dauermagnetwerkstoffen |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3558372A (enrdf_load_stackoverflow) |
| BE (1) | BE726341A (enrdf_load_stackoverflow) |
| DE (1) | DE1901056A1 (enrdf_load_stackoverflow) |
| ES (1) | ES362575A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2001038A1 (enrdf_load_stackoverflow) |
| GB (1) | GB1210332A (enrdf_load_stackoverflow) |
| NL (1) | NL6900668A (enrdf_load_stackoverflow) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2054929A1 (de) * | 1970-11-07 | 1972-05-10 | Elektro Physik Hans Nix U Dr I | Magnetischer Dickenmesser |
| US3900749A (en) * | 1974-04-02 | 1975-08-19 | Hmw Industries | Permanent magnet generator |
| US5186765A (en) * | 1989-07-31 | 1993-02-16 | Kabushiki Kaisha Toshiba | Cold accumulating material and method of manufacturing the same |
| US6966953B2 (en) * | 2002-04-29 | 2005-11-22 | University Of Dayton | Modified sintered RE-Fe-B-type, rare earth permanent magnets with improved toughness |
| US6994755B2 (en) * | 2002-04-29 | 2006-02-07 | University Of Dayton | Method of improving toughness of sintered RE-Fe-B-type, rare earth permanent magnets |
| US20060054245A1 (en) * | 2003-12-31 | 2006-03-16 | Shiqiang Liu | Nanocomposite permanent magnets |
| EP1766641A2 (en) * | 2004-06-30 | 2007-03-28 | University Of Dayton | Anisotropic nanocomposite rare earth permanent magnets and method of making |
-
1968
- 1968-01-31 US US701840*A patent/US3558372A/en not_active Expired - Lifetime
- 1968-12-31 BE BE726341D patent/BE726341A/xx unknown
-
1969
- 1969-01-03 GB GB579/69A patent/GB1210332A/en not_active Expired
- 1969-01-10 DE DE19691901056 patent/DE1901056A1/de active Pending
- 1969-01-15 NL NL6900668A patent/NL6900668A/xx unknown
- 1969-01-16 ES ES362575A patent/ES362575A1/es not_active Expired
- 1969-01-30 FR FR6901903A patent/FR2001038A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| ES362575A1 (es) | 1970-11-01 |
| GB1210332A (en) | 1970-10-28 |
| FR2001038A1 (enrdf_load_stackoverflow) | 1969-09-19 |
| US3558372A (en) | 1971-01-26 |
| NL6900668A (enrdf_load_stackoverflow) | 1969-08-04 |
| BE726341A (enrdf_load_stackoverflow) | 1969-05-29 |
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