EP0056857B1 - Werkstoff für elektrische Kontakte - Google Patents
Werkstoff für elektrische Kontakte Download PDFInfo
- Publication number
- EP0056857B1 EP0056857B1 EP81110185A EP81110185A EP0056857B1 EP 0056857 B1 EP0056857 B1 EP 0056857B1 EP 81110185 A EP81110185 A EP 81110185A EP 81110185 A EP81110185 A EP 81110185A EP 0056857 B1 EP0056857 B1 EP 0056857B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- oxide
- weight
- gew
- germanium
- electrical contacts
- 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
- 239000000463 material Substances 0.000 title claims description 22
- YBMRDBCBODYGJE-UHFFFAOYSA-N germanium dioxide Chemical compound O=[Ge]=O YBMRDBCBODYGJE-UHFFFAOYSA-N 0.000 claims description 10
- 229910052709 silver Inorganic materials 0.000 claims description 10
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 10
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 claims description 8
- 229910044991 metal oxide Inorganic materials 0.000 claims description 7
- 150000004706 metal oxides Chemical class 0.000 claims description 7
- 229910000476 molybdenum oxide Inorganic materials 0.000 claims description 6
- 229910001887 tin oxide Inorganic materials 0.000 claims description 6
- 239000004332 silver Substances 0.000 claims description 4
- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten trioxide Chemical compound O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 claims 1
- CXKCTMHTOKXKQT-UHFFFAOYSA-N cadmium oxide Inorganic materials [Cd]=O CXKCTMHTOKXKQT-UHFFFAOYSA-N 0.000 description 9
- CFEAAQFZALKQPA-UHFFFAOYSA-N cadmium(2+);oxygen(2-) Chemical compound [O-2].[Cd+2] CFEAAQFZALKQPA-UHFFFAOYSA-N 0.000 description 9
- 238000003466 welding Methods 0.000 description 7
- 229910052732 germanium Inorganic materials 0.000 description 6
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 5
- PVADDRMAFCOOPC-UHFFFAOYSA-N oxogermanium Chemical compound [Ge]=O PVADDRMAFCOOPC-UHFFFAOYSA-N 0.000 description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 description 4
- 229910001930 tungsten oxide Inorganic materials 0.000 description 4
- 229910006404 SnO 2 Inorganic materials 0.000 description 3
- 238000004663 powder metallurgy Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 238000007792 addition Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 229910001316 Ag alloy Inorganic materials 0.000 description 1
- 229910017750 AgSn Inorganic materials 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- ASMQPJTXPYCZBL-UHFFFAOYSA-N [O-2].[Cd+2].[Ag+] Chemical compound [O-2].[Cd+2].[Ag+] ASMQPJTXPYCZBL-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910000416 bismuth oxide Inorganic materials 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
- C22C32/0015—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
- C22C32/0021—Matrix based on noble metals, Cu or alloys thereof
-
- 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
- H01H1/02372—Composite material having a noble metal as the basic material and containing oxides containing as major components one or more oxides of the following elements only: Cd, Sn, Zn, In, Bi, Sb or Te
- H01H1/02376—Composite material having a noble metal as the basic material and containing oxides containing as major components one or more oxides of the following elements only: Cd, Sn, Zn, In, Bi, Sb or Te containing as major component SnO2
Definitions
- the invention relates to a material for electrical contacts made of silver, tin oxide and one or more other metal oxides.
- the object of the invention was to provide a material for electrical contacts made of silver, tin oxide and one or more other metal oxides, which has a long service life, an even lower tendency to weld and even lower temperatures when switching compared to the known contact materials.
- the material contains 0.05 to 4% by weight of molybdenum oxide and / or germanium oxide.
- the proportion of tin oxide is preferably 8-20% by weight.
- 0.05 to 0.9% by weight of molybdenum oxide and 0.05 to 1.5% by weight of germanium oxide have proven to be preferred addition amounts. It is also possible to add about 0.2% by weight of tungsten oxide without losing the improved properties.
- the materials based on AgSn0 2 with additions of molybdenum oxide and / or germanium oxide can be produced by powder metallurgy both by pressing and sintering individual contact pieces and by extruding sintered bolts.
- Another special advantage of germanium oxide is that due to the solubility of germanium in silver, this additive can also be easily used for internally oxidized material.
- Experimental concentrations of 0.1% Ge to AgSn 7.5 resulted in a uniform excretion of the metal oxides in the material. There was no formation of a covering layer.
- germanium significantly accelerates the internal oxidation and that oxidation rates as with Ag / CdO can be achieved.
- the maximum internally oxidizable base content is increased by adding germanium and thus the security against welding is improved.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Composite Materials (AREA)
- Contacts (AREA)
- Conductive Materials (AREA)
- Powder Metallurgy (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT81110185T ATE7979T1 (de) | 1981-01-23 | 1981-12-05 | Werkstoff fuer elektrische kontakte. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19813102067 DE3102067A1 (de) | 1981-01-23 | 1981-01-23 | Werkstoff fuer elektrische kontakte |
| DE3102067 | 1981-01-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0056857A1 EP0056857A1 (de) | 1982-08-04 |
| EP0056857B1 true EP0056857B1 (de) | 1984-06-13 |
Family
ID=6123147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP81110185A Expired EP0056857B1 (de) | 1981-01-23 | 1981-12-05 | Werkstoff für elektrische Kontakte |
Country Status (19)
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4331526C3 (de) * | 1992-09-16 | 2003-11-06 | Ami Doduco Gmbh | Werkstoff für elektrische Kontakte auf der Basis von Silber-Zinnoxid oder Silber-Zinkoxid und Verfahren zur Herstellung eines Verbundpulvers hierfür |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3232627A1 (de) * | 1981-09-24 | 1983-04-07 | Doduco KG Dr. Eugen Dürrwächter, 7530 Pforzheim | Werkstoff fuer elektrische kontakte |
| DE3304637A1 (de) * | 1983-02-10 | 1984-08-16 | Siemens AG, 1000 Berlin und 8000 München | Sinterkontaktwerkstoff fuer niederspannungsschaltgeraete |
| DE3305270A1 (de) * | 1983-02-16 | 1984-08-16 | Siemens AG, 1000 Berlin und 8000 München | Sinterverbundwerkstoff fuer elektrische kontakte und verfahren zu seiner herstellung |
| EP0152606B1 (de) * | 1984-01-30 | 1987-09-09 | Siemens Aktiengesellschaft | Kontaktwerkstoff und Herstellung von Kontaktstücken |
| DE3435289A1 (de) * | 1984-09-26 | 1986-04-03 | Wilo-Werk Gmbh & Co Pumpen- Und Apparatebau, 4600 Dortmund | Anschlusskasten fuer pumpenmotor |
| US4817695A (en) * | 1987-12-02 | 1989-04-04 | Wingert Philip C | Electrical contact material of Ag, SnO2, GeO2 and In2 O.sub.3 |
| US4904317A (en) * | 1988-05-16 | 1990-02-27 | Technitrol, Inc. | Erosion resistant Ag-SnO2 electrical contact material |
| ATE136394T1 (de) * | 1992-06-10 | 1996-04-15 | Duerrwaechter E Dr Doduco | Werkstoff für elektrische kontakte auf der basis von silber-zinnoxid oder silber-zinkoxid |
| US5258052A (en) * | 1992-06-18 | 1993-11-02 | Advanced Metallurgy Incorporated | Powder metallurgy silver-tin oxide electrical contact material |
| FR2893632B1 (fr) * | 2005-11-18 | 2008-01-25 | Commissariat Energie Atomique | Revetement a base d'argent resistant a la sulfuration, procede de depot et utilisation |
| CN109252064B (zh) * | 2018-10-15 | 2020-05-22 | 浙江工业大学 | 一种掺杂改性Ag/SnO2复合电接触材料及其制备方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3933485A (en) * | 1973-07-20 | 1976-01-20 | Chugai Denki Kogyo Kabushiki-Kaisha | Electrical contact material |
| US3933486A (en) * | 1974-02-12 | 1976-01-20 | Chugai Denki Kogyo Kabushiki-Kaisha | Silver-metal oxide composite and method of manufacturing the same |
| JPS51121795A (en) * | 1975-04-17 | 1976-10-25 | Nippon Tungsten Co Ltd | Ag-tin oxide-system electric contact material |
| JPS523193A (en) * | 1975-06-24 | 1977-01-11 | Sumitomo Electric Ind Ltd | Electric contact material |
| US4141727A (en) * | 1976-12-03 | 1979-02-27 | Matsushita Electric Industrial Co., Ltd. | Electrical contact material and method of making the same |
| DE2659012C3 (de) * | 1976-12-27 | 1980-01-24 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Verfahren zum Herstellen eines Sinterkontaktwerkstoffes aus Silber und eingelagerten Metalloxiden |
| DE2933338C3 (de) * | 1979-08-17 | 1983-04-28 | Degussa Ag, 6000 Frankfurt | Werkstoff für elektrische Kontakte und Verfahren zu seiner Herstellung |
-
1981
- 1981-01-23 DE DE19813102067 patent/DE3102067A1/de not_active Withdrawn
- 1981-11-16 CS CS818426A patent/CS231185B2/cs unknown
- 1981-11-23 PT PT74022A patent/PT74022B/pt unknown
- 1981-11-30 AU AU77986/81A patent/AU544021B2/en not_active Expired
- 1981-12-01 NO NO814101A patent/NO157317C/no unknown
- 1981-12-05 DE DE8181110185T patent/DE3164233D1/de not_active Expired
- 1981-12-05 AT AT81110185T patent/ATE7979T1/de active
- 1981-12-05 EP EP81110185A patent/EP0056857B1/de not_active Expired
- 1981-12-15 US US06/331,065 patent/US4410491A/en not_active Expired - Lifetime
- 1981-12-21 YU YU3026/81A patent/YU43508B/xx unknown
-
1982
- 1982-01-12 PL PL1982234697A patent/PL137714B1/pl unknown
- 1982-01-13 BR BR8200159A patent/BR8200159A/pt not_active IP Right Cessation
- 1982-01-14 ES ES508715A patent/ES508715A0/es active Granted
- 1982-01-18 AR AR288150A patent/AR227957A1/es active
- 1982-01-19 ZA ZA82349A patent/ZA82349B/xx unknown
- 1982-01-19 DK DK21982A patent/DK149786C/da active
- 1982-01-21 MX MX829876U patent/MX7462E/es unknown
- 1982-01-22 CA CA000394715A patent/CA1183373A/en not_active Expired
- 1982-01-22 JP JP57007717A patent/JPS57143460A/ja active Granted
- 1982-01-22 HU HU82191A patent/HU186467B/hu unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4331526C3 (de) * | 1992-09-16 | 2003-11-06 | Ami Doduco Gmbh | Werkstoff für elektrische Kontakte auf der Basis von Silber-Zinnoxid oder Silber-Zinkoxid und Verfahren zur Herstellung eines Verbundpulvers hierfür |
Also Published As
| Publication number | Publication date |
|---|---|
| MX7462E (es) | 1988-12-22 |
| CA1183373A (en) | 1985-03-05 |
| AR227957A1 (es) | 1982-12-30 |
| CS842681A2 (en) | 1984-02-13 |
| PT74022B (de) | 1983-04-29 |
| ATE7979T1 (de) | 1984-06-15 |
| JPH0325493B2 (enrdf_load_stackoverflow) | 1991-04-08 |
| YU302681A (en) | 1983-12-31 |
| NO157317B (no) | 1987-11-16 |
| BR8200159A (pt) | 1982-11-03 |
| AU7798681A (en) | 1982-07-29 |
| DK21982A (da) | 1982-07-24 |
| ZA82349B (en) | 1982-12-29 |
| NO814101L (no) | 1982-07-26 |
| HU186467B (en) | 1985-08-28 |
| DE3164233D1 (en) | 1984-07-19 |
| DE3102067A1 (de) | 1982-08-19 |
| PT74022A (de) | 1981-12-01 |
| YU43508B (en) | 1989-08-31 |
| PL234697A1 (enrdf_load_stackoverflow) | 1982-10-25 |
| JPS57143460A (en) | 1982-09-04 |
| DK149786B (da) | 1986-09-29 |
| CS231185B2 (en) | 1984-10-15 |
| ES8305528A1 (es) | 1983-04-01 |
| NO157317C (no) | 1988-02-24 |
| AU544021B2 (en) | 1985-05-16 |
| EP0056857A1 (de) | 1982-08-04 |
| ES508715A0 (es) | 1983-04-01 |
| DK149786C (da) | 1987-04-13 |
| US4410491A (en) | 1983-10-18 |
| PL137714B1 (en) | 1986-07-31 |
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