GB1042053A - Cores for electrical coils and their method of manufacture - Google Patents
Cores for electrical coils and their method of manufactureInfo
- Publication number
- GB1042053A GB1042053A GB1385963A GB1385963A GB1042053A GB 1042053 A GB1042053 A GB 1042053A GB 1385963 A GB1385963 A GB 1385963A GB 1385963 A GB1385963 A GB 1385963A GB 1042053 A GB1042053 A GB 1042053A
- Authority
- GB
- United Kingdom
- Prior art keywords
- parts
- cores
- dispersion
- paste
- toluol
- 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
- 238000000034 method Methods 0.000 title abstract 4
- 238000004519 manufacturing process Methods 0.000 title 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract 6
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 abstract 4
- 239000006185 dispersion Substances 0.000 abstract 4
- 229920001971 elastomer Polymers 0.000 abstract 4
- 239000011248 coating agent Substances 0.000 abstract 2
- 238000000576 coating method Methods 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 239000013557 residual solvent Substances 0.000 abstract 2
- 239000002904 solvent Substances 0.000 abstract 2
- 238000004073 vulcanization Methods 0.000 abstract 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract 1
- 238000010073 coating (rubber) Methods 0.000 abstract 1
- 239000003431 cross linking reagent Substances 0.000 abstract 1
- 238000007598 dipping method Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000004848 polyfunctional curative Substances 0.000 abstract 1
- 229920002379 silicone rubber Polymers 0.000 abstract 1
- 239000004945 silicone rubber Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/08—Cores, Yokes, or armatures made from powder
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/041—Means for preventing rotation or displacement of the core
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Insulating Of Coils (AREA)
- Laminated Bodies (AREA)
Abstract
A silicone rubber coating for the threaded core of a timing coil, may be formed by a dipping, or pasting, method, a cross-linking agent being present in the dispersion, or the paste, used. The core may be dipped into a dispersion comprising 30 parts by weight of cold-vulcanising rubber material, in 50 parts of toluol, 20 parts butanol and 0.2% hardener. After treatment, the cores are repeatedly dried on a rotating drum, with moderate heating to drive off residual solvent. For larger cores, the coating is pasted on in strip-like form and comprises 60 parts of hot-vulcanising rubber paste, mixed with 30 parts toluol and 20 parts butanol. The cones are fed continuously onto a conveyor belt, moving past a paste applying device, from which pumps or gas pressure force jets of paste onto the cores. Residual solvent is removed by heating at 80 DEG C., and vulcanisation takes place at 100-150 DEG C. Alternatively, the larger cores are first coated by the dripping process, the dispersion in this case comprising 30% cold-vulcanising rubber in benzine (thinned with equal parts of toluol). After centrifuging to remove excess dispersion and solvent, a hot vulcanising rubber strip is applied by the pasting method, the excess solvent is driven off at 80 DEG C., and vulcanisation carried out at 150 DEG C., to form a homogeneous coating.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1962V0022311 DE1276833B (en) | 1962-04-07 | 1962-04-07 | Coil core for high frequency technology and process for its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1042053A true GB1042053A (en) | 1966-09-07 |
Family
ID=7579764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1385963A Expired GB1042053A (en) | 1962-04-07 | 1963-04-08 | Cores for electrical coils and their method of manufacture |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1276833B (en) |
| GB (1) | GB1042053A (en) |
| NL (2) | NL142012B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE757100C (en) * | 1937-11-12 | 1953-01-05 | Steatit Magnesia Ag | High-frequency coil with a balancing mass core that can be moved axially inside the coil by means of a screw drive |
| CH210913A (en) * | 1938-07-07 | 1940-08-15 | Fides Gmbh | Rotation lock for the adjustment screw on high-frequency induction coils. |
| FR972647A (en) * | 1948-08-27 | 1951-02-01 | Improvements to adjustable magnetic cores used in oscillating circuit devices | |
| DE1662183U (en) * | 1953-06-27 | 1953-08-27 | Kurt Kaschke | THREAD ALIGNMENT CORES FOR COILS IN ELECTRICAL TECHNOLOGY, IN PARTICULAR IN COMMUNICATION TECHNOLOGY. |
| DE1747461U (en) * | 1957-04-27 | 1957-06-27 | Vogt & Co M B H Fabrik Fuer Me | COIL BALANCING CORE WITH AN ELASTIC BALANCE COMPENSATION AND BRAKE LAYER. |
| DE1704657A1 (en) * | 1967-11-11 | 1971-05-27 | Bayer Ag | Process for avoiding distortions when stretching continuous film webs |
-
0
- NL NL291156D patent/NL291156A/xx unknown
-
1962
- 1962-04-07 DE DE1962V0022311 patent/DE1276833B/en not_active Withdrawn
-
1963
- 1963-04-05 NL NL291156A patent/NL142012B/en unknown
- 1963-04-08 GB GB1385963A patent/GB1042053A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL291156A (en) | |
| NL142012B (en) | 1974-04-16 |
| DE1276833B (en) | 1968-09-05 |
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