Title:
ELECTRIC CONTACT AND BREAKER USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2003/063191
Kind Code:
A1
Abstract:
An electric contact which comprises an Ag alloy having a chemical composition wherein Sn and In contents are both 1 to 9 mass %, has a first layer as a surface layer and a second layer as an inner part, wherein the first and second layers exhibit hardness values of 190 or greater and 130 or less, respectively, as measured according to the micro-Vickers standard provided in JIS and the first layer has a thickness in the range of 10 to 360 μm. The electric contact is advantageous especially in that it combines excellent fusion resistance characteristics and excellent temperature characteristics.
Inventors:
UENISHI NOBORU (JP)
GOMA NORIHITO (JP)
GOMA NORIHITO (JP)
Application Number:
PCT/JP2003/000294
Publication Date:
July 31, 2003
Filing Date:
January 15, 2003
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
UENISHI NOBORU (JP)
GOMA NORIHITO (JP)
UENISHI NOBORU (JP)
GOMA NORIHITO (JP)
International Classes:
C22C5/06; H01H1/023; H01H1/0237; H01H1/04; H01H73/04; (IPC1-7): H01H1/02; H01H73/04
Domestic Patent References:
| WO2000065623A1 | 2000-11-02 |
Foreign References:
| JPH1040764A | 1998-02-13 | |||
| JP2001355028A | 2001-12-25 |
Other References:
See also references of EP 1475814A4
Attorney, Agent or Firm:
Nakano, Minoru c/o Sumitomo Electric Industries Ltd. (1-3, Shimaya 1-chome, Konohana-k, Osaka-shi Osaka, JP)
Download PDF:
Previous Patent: COAXIAL LINE PLUG-IN CONNECTION WITH INTEGRATED GALVANIC SEPARATION
Next Patent: CONTROL ELEMENT BASED ON A MEMBRANE SWITCH
Next Patent: CONTROL ELEMENT BASED ON A MEMBRANE SWITCH