GB567380A - Improved method of controlling the heat produced by a high frequency electric field in a bonded fibrous material - Google Patents
Improved method of controlling the heat produced by a high frequency electric field in a bonded fibrous materialInfo
- Publication number
- GB567380A GB567380A GB686743A GB686743A GB567380A GB 567380 A GB567380 A GB 567380A GB 686743 A GB686743 A GB 686743A GB 686743 A GB686743 A GB 686743A GB 567380 A GB567380 A GB 567380A
- Authority
- GB
- United Kingdom
- Prior art keywords
- loss
- laminμ
- adhesive
- fibrous
- article
- 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
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/46—Dielectric heating
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Laminated Bodies (AREA)
Abstract
567,380. Ply-wood &c. JABLONSKY, B. April 30, 1943, No. 6867. [Class 145 (ii)] [Also in Groups VIII and XI] In the manufacture of articles from fibrous material and an adhesive by electricallygenerated heat, the heat generated at various parts is controlled by using materials having different electric loss factors, i.e. dielectric loss, ohmic loss, eddy current loss, or hysteresis loss. Material with a higher loss factor may be used near the surface to compensate. for radiation losses or in thicker parts of the article. Added substances may be carbonaceous matter, graphite, carbon black, or acetylene black, an electrolyte or ionogen, e.g. an organic acid or a salt, or fine metal particles. The fibrous material may be in the form of loose fibres, wood laminµ, paper, textile fabric, or pulp. The adhesive may be a natural glue or resin, or a synthetic thermosetting or thermoplastic material, or a synthetic rubber. Fibrous laminµ may be interleaved with solid films of adhesive. An article may be built up of fibrous laminµ of different thickness, an adhesive of high electric loss being used for bonding the thick laminµ, and lower loss for the thinner laminµ. Long laminµ may be interleaved with shorter laminµ in places, an adhesive of high electric loss being used for the short laminµ and lower loss for the longer laminµ. When an article is built up of laminated boards, the boards may be bonded with a low-loss adhesive and united together with a higher loss adhesive. The frequency may be in the range of megacycles, or may be reduced to 50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB686743A GB567380A (en) | 1943-04-30 | 1943-04-30 | Improved method of controlling the heat produced by a high frequency electric field in a bonded fibrous material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB686743A GB567380A (en) | 1943-04-30 | 1943-04-30 | Improved method of controlling the heat produced by a high frequency electric field in a bonded fibrous material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB567380A true GB567380A (en) | 1945-02-12 |
Family
ID=9822216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB686743A Expired GB567380A (en) | 1943-04-30 | 1943-04-30 | Improved method of controlling the heat produced by a high frequency electric field in a bonded fibrous material |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB567380A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2700634A (en) * | 1949-09-09 | 1955-01-25 | Northrop Aircraft Inc | Method of laminating a cellular core sandwich |
| US2730481A (en) * | 1952-10-29 | 1956-01-10 | Celastic Corp | Polymerization by dielectric heating using inorganic salts as heating assistants |
| DE1042791B (en) * | 1955-05-02 | 1958-11-06 | Mannesmann Ag | Process for the production of molded bodies, e.g. B. mats, sheets, pipes and. Like. Made of mineral fibers, z. B. slag wool coated with synthetic resins or thermoplastics that can be hardened in the heat |
| DE1094385B (en) * | 1958-08-22 | 1960-12-08 | Emil Vogel Ges Mit Beschraenkt | Process for the production of plastic foams |
| DE1097593B (en) * | 1954-07-15 | 1961-01-19 | Reinhard Staeger | Process for the high frequency welding of cell bodies with open or closed cells |
-
1943
- 1943-04-30 GB GB686743A patent/GB567380A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2700634A (en) * | 1949-09-09 | 1955-01-25 | Northrop Aircraft Inc | Method of laminating a cellular core sandwich |
| US2730481A (en) * | 1952-10-29 | 1956-01-10 | Celastic Corp | Polymerization by dielectric heating using inorganic salts as heating assistants |
| DE1097593B (en) * | 1954-07-15 | 1961-01-19 | Reinhard Staeger | Process for the high frequency welding of cell bodies with open or closed cells |
| DE1042791B (en) * | 1955-05-02 | 1958-11-06 | Mannesmann Ag | Process for the production of molded bodies, e.g. B. mats, sheets, pipes and. Like. Made of mineral fibers, z. B. slag wool coated with synthetic resins or thermoplastics that can be hardened in the heat |
| DE1094385B (en) * | 1958-08-22 | 1960-12-08 | Emil Vogel Ges Mit Beschraenkt | Process for the production of plastic foams |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2407833A (en) | Method of manufacturing articles from fibrous material | |
| GB944434A (en) | Vitreous fibre panel | |
| GB778684A (en) | Improvements in or relating to methods of jointing surfaces by heat-hardenable resins | |
| GB567380A (en) | Improved method of controlling the heat produced by a high frequency electric field in a bonded fibrous material | |
| ATE144644T1 (en) | METHOD FOR PRODUCING FLEXIBLE FIBER-BASED PROTECTIVE, AUXILIARY AND INSULATING MATERIALS FOR ELECTRICAL PURPOSES USING IMPREGNATING COMPOUNDS CURED BY ENERGY RADIATION | |
| EP0285579A3 (en) | Procedure for the production of magnetic plastic laminate and magnetic laminate obtained through said procedure | |
| GB1282015A (en) | Improvements in or relating to mica paper | |
| GB1259818A (en) | Method of bonding a thermoplastic sheet to a substrate | |
| US2579949A (en) | Laminated product and method of laminating | |
| GB644564A (en) | Improvements in structural materials | |
| GB1025956A (en) | Laminated material | |
| GB585870A (en) | Improvements in or relating to method and apparatus for producing molded products | |
| GB964298A (en) | Improvements in producing metal to metal bonds with structural adhesives | |
| GB701268A (en) | Improved method of and apparatus for manufacturing pressed wood fibre objects | |
| GB743900A (en) | Improvements in or relating to laminated materials and methods of making the same | |
| GB550504A (en) | Improvements in or relating to the manufacture and moulding of resinous compositions | |
| GB908627A (en) | Improvements in or relating to bonding materials and methods | |
| GB953970A (en) | Improvements in and relating to laminated articles | |
| GB1015724A (en) | Improvements in or relating to minerals | |
| GB598587A (en) | Improvements in or relating to the heating of dielectric materials | |
| GB1233397A (en) | ||
| GB815394A (en) | Improvements in or relating to paper screening tape for high-tension electric cables | |
| GB587191A (en) | An improved method for the production of sheets and boards | |
| GB609150A (en) | Improvements in and relating to reinforced bonded fibrous material | |
| GB749778A (en) | Improvements in separators for use in lead-acid type electric accumulators |