GB446232A - Improvements in and relating to magnet cores - Google Patents
Improvements in and relating to magnet coresInfo
- Publication number
- GB446232A GB446232A GB25678/35A GB2567835A GB446232A GB 446232 A GB446232 A GB 446232A GB 25678/35 A GB25678/35 A GB 25678/35A GB 2567835 A GB2567835 A GB 2567835A GB 446232 A GB446232 A GB 446232A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sieve
- particles
- passing
- iron powder
- liquid
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
Abstract
Insulated iron powder for magnet cores particularly for high frequency purposes is produced by passing the grains of powder through a distributing device, for instance a sieve, and directly thereafter through an insulating liquid, for example, an artificial or natural resin dissolved in acetone. The liquid may be kept in circulation to separate further the particles. The separation of the particles may be effected by a shaking device or blower instead of a sieve. Phenol-formaldehyde resin, shellac, polystyrol, colophonium and water-glass are mentioned as suitable insulating materials. The Specification as open to inspection under Sect. 91 comprises also a method which consists in passing the iron powder through insulating material in the form of vapour. This subject-matter does not appear in the Specification as accepted.ALSO:Insulated iron powder for magnet cores, particularly for high frequency purposes is produced by passing the grains of powder through a distributing device, for instance a sieve, and directly thereafter through an insulating liquid, for example an artificial or natural resin dissolved in acetone. The liquid may be kept in circulation to separate further the particles. The separation of the particles may be effected by a shaking device or blower instead of a sieve. Phenol-formaldehyde resin, shellac, polystyrol, colophonium and water-glass are mentioned as suitable insulating materials. The Specification as open to inspection under Sect. 91 comprises also a method which consists in passing the iron powder through insulating material in the form of vapour. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE446232X | 1934-09-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB446232A true GB446232A (en) | 1936-04-27 |
Family
ID=6537849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25678/35A Expired GB446232A (en) | 1934-09-19 | 1935-09-16 | Improvements in and relating to magnet cores |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB446232A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1096693B (en) * | 1954-10-11 | 1961-01-05 | Elmeg | Flowable, magnetizable agent for magnetic particle clutches or brakes subject to the action of a magnetic field |
-
1935
- 1935-09-16 GB GB25678/35A patent/GB446232A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1096693B (en) * | 1954-10-11 | 1961-01-05 | Elmeg | Flowable, magnetizable agent for magnetic particle clutches or brakes subject to the action of a magnetic field |
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