GB1469976A - Method for producing an electrical power contact - Google Patents
Method for producing an electrical power contactInfo
- Publication number
- GB1469976A GB1469976A GB2664774A GB2664774A GB1469976A GB 1469976 A GB1469976 A GB 1469976A GB 2664774 A GB2664774 A GB 2664774A GB 2664774 A GB2664774 A GB 2664774A GB 1469976 A GB1469976 A GB 1469976A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cadmium
- silver
- powder
- metal
- heated
- 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
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 3
- 239000000463 material Substances 0.000 abstract 3
- 229910052751 metal Inorganic materials 0.000 abstract 3
- 239000002184 metal Substances 0.000 abstract 3
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 229910052709 silver Inorganic materials 0.000 abstract 2
- 239000004332 silver Substances 0.000 abstract 2
- 229910000925 Cd alloy Inorganic materials 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract 1
- 229910052783 alkali metal Inorganic materials 0.000 abstract 1
- 150000001340 alkali metals Chemical class 0.000 abstract 1
- 229910052793 cadmium Inorganic materials 0.000 abstract 1
- CXKCTMHTOKXKQT-UHFFFAOYSA-N cadmium oxide Inorganic materials [Cd]=O CXKCTMHTOKXKQT-UHFFFAOYSA-N 0.000 abstract 1
- CFEAAQFZALKQPA-UHFFFAOYSA-N cadmium(2+);oxygen(2-) Chemical compound [O-2].[Cd+2] CFEAAQFZALKQPA-UHFFFAOYSA-N 0.000 abstract 1
- 239000002131 composite material Substances 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 229910052744 lithium Inorganic materials 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000010309 melting process Methods 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 239000011812 mixed powder Substances 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 abstract 1
- 238000005245 sintering Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/02—Contacts characterised by the material thereof
- H01H1/021—Composite material
- H01H1/023—Composite material having a noble metal as the basic material
- H01H1/0237—Composite material having a noble metal as the basic material and containing oxides
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Switches (AREA)
- Conductive Materials (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The process for preparing an electrical contact material for use in medium-size power switches comprises mixing silver powder with cadmium oxide powder or cadmium powder, whereupon the mixed powders are compacted at approximately 800 kp/cm<2>, and the compact is heated in a reducing atmosphere to obtain a porous alloy of cadmium in silver, without melting the compacted components. The reduced compact is then heated in an oxidising atmosphere in order to reoxidise or oxidise the cadmium in its interior without a melting process. Alternatively, other metals, for example copper instead of silver, can be used in this process. It is also possible to admix an oxide of a third metal, for example lithium or another alkali metal in powdered form. A fourth metal can be added to achieve other desired properties of the material. The contacts are stamped, or are punched from the composite material and treated by further metallurgical techniques such as sintering or rolling, in order to prepare the final contact material.
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2664774A GB1469976A (en) | 1974-06-15 | 1974-06-15 | Method for producing an electrical power contact |
| DE19752521585 DE2521585A1 (en) | 1974-06-15 | 1975-05-15 | METHOD OF MANUFACTURING AN ELECTRICALLY CONDUCTIVE MATERIAL |
| FR7517263A FR2274999A1 (en) | 1974-06-15 | 1975-06-03 | PROCESS FOR THE MANUFACTURE OF AN ELECTRICALLY CONDUCTIVE COMPOSITE MATERIAL AND THE COMPOSITE MATERIAL SO OBTAINED |
| CH738075A CH618808A5 (en) | 1974-06-15 | 1975-06-09 | Process for preparing an electroconductive material. |
| IT2428175A IT1038958B (en) | 1974-06-15 | 1975-06-11 | METHOD OF PRODUCTION OF AN ELECTRICALLY CONDUCTIVE COMPOSITE MATERIAL OF SILVER OXIDE OF CADMIUM |
| SE7506746A SE427142B (en) | 1974-06-15 | 1975-06-12 | SET TO MAKE A CONTACT MATERIAL OF SILVER WITH CADMIUM, TIN OR ZINC |
| DK267375A DK267375A (en) | 1974-06-15 | 1975-06-13 | PROCEDURE FOR THE PREPARATION OF AN ELECTRICALLY CONDUCTIVE COMPOSITE MATERIAL |
| JP7181075A JPS5111193A (en) | 1974-06-15 | 1975-06-13 | DENKIDENDOSEISOSEIBUTSU OYOBI SONOSEIZOHOHO |
| MX10022175U MX3419E (en) | 1974-06-15 | 1975-06-13 | IMPROVED METHOD FOR PRODUCING AN ELECTRICALLY CONDUCTIVE COMPOSITE MATERIAL |
| BE157335A BE830241A (en) | 1974-06-15 | 1975-06-13 | PROCESS FOR THE PRODUCTION OF AN ELECTRICALLY CONDUCTING COMPOSITE MATERIAL |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2664774A GB1469976A (en) | 1974-06-15 | 1974-06-15 | Method for producing an electrical power contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1469976A true GB1469976A (en) | 1977-04-14 |
Family
ID=10246950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2664774A Expired GB1469976A (en) | 1974-06-15 | 1974-06-15 | Method for producing an electrical power contact |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS5111193A (en) |
| BE (1) | BE830241A (en) |
| CH (1) | CH618808A5 (en) |
| DE (1) | DE2521585A1 (en) |
| DK (1) | DK267375A (en) |
| FR (1) | FR2274999A1 (en) |
| GB (1) | GB1469976A (en) |
| IT (1) | IT1038958B (en) |
| MX (1) | MX3419E (en) |
| SE (1) | SE427142B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2236717C2 (en) * | 2002-11-12 | 2004-09-20 | Калихман Виктор Липович | Method for making contact parts of silver- cadmium oxide compositions |
| US9028586B2 (en) | 2011-12-29 | 2015-05-12 | Umicore | Oxidation method |
| CN119530593A (en) * | 2025-01-22 | 2025-02-28 | 乐清市长虹电工合金材料有限公司 | A silver-based tin oxide electrical contact material and preparation method thereof |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4095977A (en) * | 1976-08-13 | 1978-06-20 | Square D Company | Material for making electrical contacts, process for making materials, and contacts made with the material |
| JPS5459377A (en) * | 1977-10-14 | 1979-05-12 | Kiyokuyou Kk | Skin peeling method of fishes |
| JPS6219072A (en) * | 1985-07-16 | 1987-01-27 | Tsuda Tekko Kk | Method of polishing onion |
| JPH046694U (en) * | 1990-05-07 | 1992-01-22 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1397319A (en) * | 1972-08-25 | 1975-06-11 | Square D Co | Electrically conductive materials |
-
1974
- 1974-06-15 GB GB2664774A patent/GB1469976A/en not_active Expired
-
1975
- 1975-05-15 DE DE19752521585 patent/DE2521585A1/en not_active Ceased
- 1975-06-03 FR FR7517263A patent/FR2274999A1/en active Granted
- 1975-06-09 CH CH738075A patent/CH618808A5/en not_active IP Right Cessation
- 1975-06-11 IT IT2428175A patent/IT1038958B/en active
- 1975-06-12 SE SE7506746A patent/SE427142B/en not_active IP Right Cessation
- 1975-06-13 DK DK267375A patent/DK267375A/en not_active Application Discontinuation
- 1975-06-13 JP JP7181075A patent/JPS5111193A/en active Granted
- 1975-06-13 BE BE157335A patent/BE830241A/en not_active IP Right Cessation
- 1975-06-13 MX MX10022175U patent/MX3419E/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2236717C2 (en) * | 2002-11-12 | 2004-09-20 | Калихман Виктор Липович | Method for making contact parts of silver- cadmium oxide compositions |
| US9028586B2 (en) | 2011-12-29 | 2015-05-12 | Umicore | Oxidation method |
| CN119530593A (en) * | 2025-01-22 | 2025-02-28 | 乐清市长虹电工合金材料有限公司 | A silver-based tin oxide electrical contact material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| SE427142B (en) | 1983-03-07 |
| IT1038958B (en) | 1979-11-30 |
| MX3419E (en) | 1980-11-13 |
| JPS5416442B2 (en) | 1979-06-22 |
| CH618808A5 (en) | 1980-08-15 |
| SE7506746L (en) | 1976-02-23 |
| DE2521585A1 (en) | 1976-01-02 |
| FR2274999A1 (en) | 1976-01-09 |
| FR2274999B1 (en) | 1978-09-22 |
| JPS5111193A (en) | 1976-01-29 |
| BE830241A (en) | 1975-10-01 |
| DK267375A (en) | 1975-12-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |