GB962631A - Magnetic materials - Google Patents
Magnetic materialsInfo
- Publication number
- GB962631A GB962631A GB39189/60A GB3918960A GB962631A GB 962631 A GB962631 A GB 962631A GB 39189/60 A GB39189/60 A GB 39189/60A GB 3918960 A GB3918960 A GB 3918960A GB 962631 A GB962631 A GB 962631A
- Authority
- GB
- United Kingdom
- Prior art keywords
- particles
- aluminate
- coating
- silicate
- alkali metal
- 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
- 239000000696 magnetic material Substances 0.000 title 1
- 238000000034 method Methods 0.000 abstract 5
- 239000011248 coating agent Substances 0.000 abstract 4
- 238000000576 coating method Methods 0.000 abstract 4
- 239000002245 particle Substances 0.000 abstract 4
- 150000004645 aluminates Chemical class 0.000 abstract 3
- 239000000203 mixture Substances 0.000 abstract 3
- 229910052910 alkali metal silicate Inorganic materials 0.000 abstract 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 abstract 2
- 239000000347 magnesium hydroxide Substances 0.000 abstract 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 abstract 2
- 239000005995 Aluminium silicate Substances 0.000 abstract 1
- 229910000640 Fe alloy Inorganic materials 0.000 abstract 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract 1
- 229910001182 Mo alloy Inorganic materials 0.000 abstract 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 abstract 1
- 239000004111 Potassium silicate Substances 0.000 abstract 1
- 239000004115 Sodium Silicate Substances 0.000 abstract 1
- 229910052783 alkali metal Inorganic materials 0.000 abstract 1
- -1 alkali metal aluminate Chemical class 0.000 abstract 1
- 229910000323 aluminium silicate Inorganic materials 0.000 abstract 1
- 235000012211 aluminium silicate Nutrition 0.000 abstract 1
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 abstract 1
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 239000007900 aqueous suspension Substances 0.000 abstract 1
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000007598 dipping method Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 239000010419 fine particle Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 239000011777 magnesium Substances 0.000 abstract 1
- 229910052749 magnesium Inorganic materials 0.000 abstract 1
- 239000006249 magnetic particle Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 abstract 1
- 229910052913 potassium silicate Inorganic materials 0.000 abstract 1
- 235000019353 potassium silicate Nutrition 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 239000003870 refractory metal Substances 0.000 abstract 1
- 229910001388 sodium aluminate Inorganic materials 0.000 abstract 1
- 229910052911 sodium silicate Inorganic materials 0.000 abstract 1
- 239000000454 talc Substances 0.000 abstract 1
- 229910052623 talc Inorganic materials 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
-
- 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
- H01F1/12—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 soft-magnetic materials
- H01F1/14—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 soft-magnetic materials metals or alloys
- H01F1/20—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 soft-magnetic materials metals or alloys in the form of particles, e.g. powder
- H01F1/22—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 soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
- H01F1/24—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 soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Soft Magnetic Materials (AREA)
Abstract
962,631. Magnetic compositions. WESTERN ELECTRIC CO. Inc. Nov. 15, 1960 [Dec. 3, 1959], No. 39189/60. Heading H1H. Magnetic particles coated with an insulating composition which includes an alkali metal silicate are compressed into a body which is then impregnated with an alkali metal aluminate and heated to anneal the particles and cure the coating. Prior process.-Preferably the particles have a coating of alkali metal silicate, refractory metal (magnesium) silicate and magnesium hydroxide and are prepared according to the prior process disclosed in U.S.A. Specification 2,105,070. In that process fine particles of Ni Fe alloy or Ni Fe Mo alloy are prepared according to Specification 290,736 and coated with a composition comprising 1 part by weight talc or an aluminium silicate, 0.3-0.4 parts sodium or potassium silicate and 0.06 to 0.08 parts magnesium hydroxide. The coating is applied in stages from aqueous suspensions, followed by drying at 270-300 F. after each stage. In the prior process the insulated particles are pressed into shape under 150,000 to 200,000 1b./sq. in. and heated to anneal the particles and cure the coating. Aluminate treatment.-According to the present invention the body after compression but prior to heating, is impregnated with sodium aluminate by dipping it into a 5-10% aqueous solution of the aluminate for 10 to 60 minutes. Core loss is improved. The insulation weighs 0.5-1.5% of the weight of metal powder. Combined process.-The Specification also contemplates the combination of the aluminate treatment above with the " oil treatment" which forms the subject of Specification 962,632.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US857087A US3014825A (en) | 1959-12-03 | 1959-12-03 | Magnetic cores and methods of making the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB962631A true GB962631A (en) | 1964-07-01 |
Family
ID=25325150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB39189/60A Expired GB962631A (en) | 1959-12-03 | 1960-11-15 | Magnetic materials |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3014825A (en) |
| JP (1) | JPS3716779B1 (en) |
| CH (2) | CH421215A (en) |
| GB (1) | GB962631A (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3523881A (en) * | 1966-09-01 | 1970-08-11 | Gen Electric | Insulating coating and method of making the same |
| US4265681A (en) * | 1978-04-14 | 1981-05-05 | Westinghouse Electric Corp. | Method of producing low loss pressed magnetic cores from microlaminations |
| US4158580A (en) * | 1978-04-14 | 1979-06-19 | Westinghouse Electric Corp. | Method of making pressed magnetic core components |
| US4486641A (en) | 1981-12-21 | 1984-12-04 | Ruffini Robert S | Inductor, coating and method |
| US5418811A (en) * | 1992-04-08 | 1995-05-23 | Fluxtrol Manufacturing, Inc. | High performance induction melting coil |
| KR970003124B1 (en) * | 1993-06-30 | 1997-03-14 | 삼성전기 주식회사 | Process for manufacturing mpp core forming powder and process for manufacturing mpp core using the powder |
| SE0401042D0 (en) * | 2004-04-21 | 2004-04-21 | Hoeganaes Ab | Lubricants for metallurgical powder compositions |
| SE0401644D0 (en) * | 2004-06-23 | 2004-06-23 | Hoeganaes Ab | Lubricants for insulated soft magnetic iron-based powder compositions |
| CN109453774B (en) * | 2018-10-16 | 2021-05-25 | 华东师范大学 | Preparation method and electrocatalysis application of nickel-based bimetallic nano material |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2531445A (en) * | 1945-11-23 | 1950-11-28 | Int Standard Electric Corp | Manufacture of magnetic bodies from compressed powdered materials |
| US2744040A (en) * | 1952-03-25 | 1956-05-01 | Gen Aniline & Film Corp | Process of preparing iron powder for magnetic cores |
| FR1125810A (en) * | 1954-07-01 | 1956-11-08 | Henkel & Cie Gmbh | Process for preparing water-resistant coatings or glues |
| US2919996A (en) * | 1957-04-26 | 1960-01-05 | Montedison Spa | Aqueous dispersions of high molecular weight fibrils of amorphous silicates |
-
1959
- 1959-12-03 US US857087A patent/US3014825A/en not_active Expired - Lifetime
-
1960
- 1960-11-15 GB GB39189/60A patent/GB962631A/en not_active Expired
- 1960-12-02 CH CH408565A patent/CH421215A/en unknown
- 1960-12-02 JP JP4727960A patent/JPS3716779B1/ja active Pending
- 1960-12-02 CH CH1350260A patent/CH408226A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3014825A (en) | 1961-12-26 |
| JPS3716779B1 (en) | 1962-10-18 |
| CH421215A (en) | 1966-09-30 |
| CH408226A (en) | 1966-02-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3069293D1 (en) | A preformed charge stock for making a piece of dispersion strengthened metal by internal oxidation and a process for preparing said piece of dispersion strengthened metal | |
| GB962631A (en) | Magnetic materials | |
| GB1101002A (en) | Method and powder for coating metals | |
| US2977263A (en) | Magnetic cores and methods of making the same | |
| US2076230A (en) | Insulated magnetic core and method of making insulated magnetic cores | |
| US2154730A (en) | Magnetic material | |
| US3132952A (en) | Ceramic composition comprising an alkali metal silicate, oil vapor, and and alkali metal aluminate | |
| CN111816400A (en) | Preparation method of ultra-low iron loss iron-silicon-aluminum magnetic core | |
| US1669646A (en) | Magnetic material | |
| GB811935A (en) | Improvements in or relating to the manufacture of magnetizable powder cores | |
| US1615685A (en) | Magnetic core | |
| GB797998A (en) | Alloy for vacuum-tube cathodes | |
| US2105092A (en) | Magnetic material | |
| GB309394A (en) | Improvements in the manufacture of cores for electromagnets or the like | |
| GB972046A (en) | A method of casting light metal on to a body of sintered aluminium or aluminium alloy powder | |
| GB962632A (en) | Magnetic material and method of making the same | |
| SU513958A1 (en) | The composition of the refractory coating for metal | |
| AT264563B (en) | Process for the powder metallurgical production of soft magnetic material | |
| ES263399A1 (en) | Procedure for the manufacture of megnetic nuclei (Machine-translation by Google Translate, not legally binding) | |
| SU129216A1 (en) | Metal-ceramic alloy system iron-nickel-aluminum-cobalt | |
| Hanawa et al. | Powder metallurgy of cast iron | |
| GB345736A (en) | Improvements in the manufacture of nickel iron alloys | |
| ES283114A1 (en) | A procedure for the preparation of solid nucleus suspension insulators (Machine-translation by Google Translate, not legally binding) | |
| AU5832180A (en) | Briquetting sponge iron-containing material | |
| GB782688A (en) | Improvements relating to alloys of high magnetic permeability |