US2047029A - Electrical insulation - Google Patents
Electrical insulation Download PDFInfo
- Publication number
- US2047029A US2047029A US650382A US65038233A US2047029A US 2047029 A US2047029 A US 2047029A US 650382 A US650382 A US 650382A US 65038233 A US65038233 A US 65038233A US 2047029 A US2047029 A US 2047029A
- Authority
- US
- United States
- Prior art keywords
- copper
- conductor
- electrical insulation
- insulation
- fused
- 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 - Lifetime
Links
- 238000010292 electrical insulation Methods 0.000 title description 4
- 229910052802 copper Inorganic materials 0.000 description 15
- 239000010949 copper Substances 0.000 description 15
- 239000004020 conductor Substances 0.000 description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 10
- -1 COPPER HALIDE Chemical class 0.000 description 6
- 238000000576 coating method Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 239000010425 asbestos Substances 0.000 description 4
- 229910052736 halogen Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910052895 riebeckite Inorganic materials 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000012764 mineral filler Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Images
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
- H01B3/10—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances metallic oxides
- H01B3/105—Wires with oxides
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2933—Coated or with bond, impregnation or core
- Y10T428/294—Coated or with bond, impregnation or core including metal or compound thereof [excluding glass, ceramic and asbestos]
- Y10T428/2958—Metal or metal compound in coating
Definitions
- the present invention relates to electrical insulation and more particularly to inorganically insulated electrical conductors.
- these difliculties can be avoided if the insulating coating on the 15 copper conductor is produced directly from copper combinations. It has been shown that copper halide and its complex combinations, 6. g. cuprous, chloride or cuprousv bromide are suitable for this purpose. They are produced either on the copper conductor or are placed on it as combinations and then fused, or are applied on the conductor in a fused state.
- the accompanying drawing illustrates in cross- 7 section a conductor insulated with insulation 25 comprising copper halide.
- the production can be carried out in a known manner by electrolysis.
- the copper conductor is wired as anode in a bath which contains the halogen ion.
- acids 3 e. g. phosphoric acid, or salts of acids, of which the decomposition voltage lies'above the decomposition voltage of the corresponding halogen combinations, in order to keep the hydrogen ion concentration within the limits necessary for un-' 35 disturbed procedure of the reaction.
- the melt container may be manufactured of copper or other copper plated material.
- the layer manufactured in accordance with the invention forms a glassy coating which is absolutely impervious. It is also possible to add filling materials such as asbestos to the insulating layer, and, for example, the deposited material 10 which is at first porous can be mixed with asbestos and fused to a homogeneous substance at a higher temperature. Filling materials such as quartz meal, mica powder and so on can be scattered on the porous layer of insulation before heat treatment and then fusing can be done.
- the conductor can also be exposed to the action of free halogen, e. g. in a heated gas containing nalogen or by drawing the heated conductor through a cold halogen atmosphere.
- a copper conductor insulated with inorganic insulation consisting of an impervious glass-like coating of copper halide containing'homogeneously distributed therein a fused mineral filler containing silica.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Insulating Bodies (AREA)
- Insulated Conductors (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
Description
ELECTRICAL INSULATION,-
Filed Jan. 6, 1935 INSULATION COMPRISING COPPER HALIDE CONDUCTOR Inventor: Robert H. Muller,
His Attorney.
Patented July 7, 1936 ELECTRICAL INSULATION Robert H. Miller, Berlin, Germany, assignor to General Electric Company, a. corporation of New York Application January 6, 1933, Serial No. 650,382 In Germany January 12, 1932 1 Claim. (Cl. 173-264) The present invention relates to electrical insulation and more particularly to inorganically insulated electrical conductors.
' It'is often desirable to insulate copper con- 5 ductors with coatings which withstand temperatures up to 200 or 300 C. Organic varnish coatings are not suflicient for this purpose. The well known insulations with aluminum oxide or zinc combinations offer great difliculty in their 10 production on copper conductors. Further they are ordinarily porous and therefore usually guarantee no protection against moisture.
According to the invention these difliculties can be avoided if the insulating coating on the 15 copper conductor is produced directly from copper combinations. It has been shown that copper halide and its complex combinations, 6. g. cuprous, chloride or cuprousv bromide are suitable for this purpose. They are produced either on the copper conductor or are placed on it as combinations and then fused, or are applied on the conductor in a fused state.
The accompanying drawing illustrates in cross- 7 section a conductor insulated with insulation 25 comprising copper halide.
The production can be carried out in a known manner by electrolysis. The copper conductor is wired as anode in a bath which contains the halogen ion. It may be convenient to add acids, 3 e. g. phosphoric acid, or salts of acids, of which the decomposition voltage lies'above the decomposition voltage of the corresponding halogen combinations, in order to keep the hydrogen ion concentration within the limits necessary for un-' 35 disturbed procedure of the reaction.
When the fused simple or complex copper halide is used, a little copper is added to the melt, to preventbxidation. To this end the melt container may be manufactured of copper or other copper plated material. The layer manufactured in accordance with the invention forms a glassy coating which is absolutely impervious. It is also possible to add filling materials such as asbestos to the insulating layer, and, for example, the deposited material 10 which is at first porous can be mixed with asbestos and fused to a homogeneous substance at a higher temperature. Filling materials such as quartz meal, mica powder and so on can be scattered on the porous layer of insulation before heat treatment and then fusing can be done. Further, there is the possibility of placing asbestos covered wires in an electrolysis bath, producing the insulating precipitates between the covering and the conductor and fusing to a substance with the asbestos by means of suitable temperature treatment. The conductor can also be exposed to the action of free halogen, e. g. in a heated gas containing nalogen or by drawing the heated conductor through a cold halogen atmosphere.
What I claim as new and desire to secure by Letters Patent of the United States is:
A copper conductor insulated with inorganic insulation consisting of an impervious glass-like coating of copper halide containing'homogeneously distributed therein a fused mineral filler containing silica.
4 R. H. MULLER.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US685422A US2097300A (en) | 1933-01-06 | 1933-08-16 | Electrical insulation |
| US685423A US2016155A (en) | 1933-01-06 | 1933-08-16 | Electrical insulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2047029X | 1932-01-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2047029A true US2047029A (en) | 1936-07-07 |
Family
ID=7982469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US650382A Expired - Lifetime US2047029A (en) | 1932-01-12 | 1933-01-06 | Electrical insulation |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2047029A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2452519A (en) * | 1944-09-28 | 1948-10-26 | Rca Corp | Method of preparing metal for metal-to-glass seals |
| US3028447A (en) * | 1958-10-22 | 1962-04-03 | Bell Telephone Labor Inc | Conductors insulated with aluminum fluoride |
| US3097965A (en) * | 1961-06-27 | 1963-07-16 | Richard A Wilkins | Conductive wire coating alloys, wires coated therewith and process for improving solderability therefor |
| US3294731A (en) * | 1962-03-08 | 1966-12-27 | Anaconda Wire & Cable Co | Pyrolizable enamel from mn and co chelates, glass, and siloxane resin |
| US3718569A (en) * | 1971-11-29 | 1973-02-27 | Beckman Instruments Inc | Method of making solid state glass electrode |
| US4882237A (en) * | 1987-03-18 | 1989-11-21 | Tokyo Metal Co., Ltd. | Aluminum-ceramic complex material |
-
1933
- 1933-01-06 US US650382A patent/US2047029A/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2452519A (en) * | 1944-09-28 | 1948-10-26 | Rca Corp | Method of preparing metal for metal-to-glass seals |
| US3028447A (en) * | 1958-10-22 | 1962-04-03 | Bell Telephone Labor Inc | Conductors insulated with aluminum fluoride |
| US3097965A (en) * | 1961-06-27 | 1963-07-16 | Richard A Wilkins | Conductive wire coating alloys, wires coated therewith and process for improving solderability therefor |
| US3294731A (en) * | 1962-03-08 | 1966-12-27 | Anaconda Wire & Cable Co | Pyrolizable enamel from mn and co chelates, glass, and siloxane resin |
| US3718569A (en) * | 1971-11-29 | 1973-02-27 | Beckman Instruments Inc | Method of making solid state glass electrode |
| US4882237A (en) * | 1987-03-18 | 1989-11-21 | Tokyo Metal Co., Ltd. | Aluminum-ceramic complex material |
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