GB556253A - Improvements relating to sparking plug electrodes - Google Patents
Improvements relating to sparking plug electrodesInfo
- Publication number
- GB556253A GB556253A GB664742A GB664742A GB556253A GB 556253 A GB556253 A GB 556253A GB 664742 A GB664742 A GB 664742A GB 664742 A GB664742 A GB 664742A GB 556253 A GB556253 A GB 556253A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- wire
- alloy
- platinum
- alloys
- 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
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T13/00—Sparking plugs
- H01T13/20—Sparking plugs characterised by features of the electrodes or insulation
- H01T13/39—Selection of materials for electrodes
Landscapes
- Spark Plugs (AREA)
Abstract
556,253. Platinum alloys; heat treatment. MOND NICKEL CO., Ltd., and PFEIL, L. B. May 15, 1942, No. 6647. [Classes 72 and 82 (i)] [Also in Groups XXVII and XXII] Sparking-plug electrodes 1, 8 resistant to attack by lead are made of alloys composed principally of one or more metals of the platinum group, of which at least the unsupported parts have a fibrous microstructure when they are assembled in the plugs and ready for service. Suitable alloys containing 4 per cent. to 5 per cent. tungsten, 20 per cent. iridium, 10 per cent. rhodium or 2 per cent. molybdenum, or platinum-tin alloys, or ruthenium may be added to a platinumtungsten alloy. The alloy is subjected to severe cold working to produce a wire of fibrous microstructure, and re-crystallization due to heating of at least the part of the wire which forms the unsupported part of the electrode is prevented during the production of the wire and its essembly in the plug, e.g. by keeping the temperature below about 950‹ C. In an example, platinum-tungsten alloy is reduced hot to a rod 0.2 inches square, annealed at 1050‹ C. for 15 minutes, and reduced in stages by cold working to 0.046 inch diameter round wire; the alloy may be held at a temperature of 800‹ for 10-15 minutes at 0.09 inches prior to further reduction in size. The electrode 8 is spot-welded to the plug body 10 and the electrode 1 is set in a metal 4 having a melting-point no higher than that of silver, a glass seal 7 being provided around the metal wire 5.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB664742A GB556253A (en) | 1942-05-15 | 1942-05-15 | Improvements relating to sparking plug electrodes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB664742A GB556253A (en) | 1942-05-15 | 1942-05-15 | Improvements relating to sparking plug electrodes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB556253A true GB556253A (en) | 1943-09-27 |
Family
ID=9818244
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB664742A Expired GB556253A (en) | 1942-05-15 | 1942-05-15 | Improvements relating to sparking plug electrodes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB556253A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8436520B2 (en) | 2010-07-29 | 2013-05-07 | Federal-Mogul Ignition Company | Electrode material for use with a spark plug |
US8471451B2 (en) | 2011-01-05 | 2013-06-25 | Federal-Mogul Ignition Company | Ruthenium-based electrode material for a spark plug |
US8575830B2 (en) | 2011-01-27 | 2013-11-05 | Federal-Mogul Ignition Company | Electrode material for a spark plug |
US8760044B2 (en) | 2011-02-22 | 2014-06-24 | Federal-Mogul Ignition Company | Electrode material for a spark plug |
US8766519B2 (en) | 2011-06-28 | 2014-07-01 | Federal-Mogul Ignition Company | Electrode material for a spark plug |
US8890399B2 (en) | 2012-05-22 | 2014-11-18 | Federal-Mogul Ignition Company | Method of making ruthenium-based material for spark plug electrode |
US8979606B2 (en) | 2012-06-26 | 2015-03-17 | Federal-Mogul Ignition Company | Method of manufacturing a ruthenium-based spark plug electrode material into a desired form and a ruthenium-based material for use in a spark plug |
US10044172B2 (en) | 2012-04-27 | 2018-08-07 | Federal-Mogul Ignition Company | Electrode for spark plug comprising ruthenium-based material |
-
1942
- 1942-05-15 GB GB664742A patent/GB556253A/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8436520B2 (en) | 2010-07-29 | 2013-05-07 | Federal-Mogul Ignition Company | Electrode material for use with a spark plug |
US8471451B2 (en) | 2011-01-05 | 2013-06-25 | Federal-Mogul Ignition Company | Ruthenium-based electrode material for a spark plug |
US8575830B2 (en) | 2011-01-27 | 2013-11-05 | Federal-Mogul Ignition Company | Electrode material for a spark plug |
US8760044B2 (en) | 2011-02-22 | 2014-06-24 | Federal-Mogul Ignition Company | Electrode material for a spark plug |
US8766519B2 (en) | 2011-06-28 | 2014-07-01 | Federal-Mogul Ignition Company | Electrode material for a spark plug |
US10044172B2 (en) | 2012-04-27 | 2018-08-07 | Federal-Mogul Ignition Company | Electrode for spark plug comprising ruthenium-based material |
US8890399B2 (en) | 2012-05-22 | 2014-11-18 | Federal-Mogul Ignition Company | Method of making ruthenium-based material for spark plug electrode |
US8979606B2 (en) | 2012-06-26 | 2015-03-17 | Federal-Mogul Ignition Company | Method of manufacturing a ruthenium-based spark plug electrode material into a desired form and a ruthenium-based material for use in a spark plug |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2391458A (en) | Spark gap electrode | |
GB556253A (en) | Improvements relating to sparking plug electrodes | |
DE3146794A1 (en) | Rare metal alloy for fusing to dental porcelain | |
US2406966A (en) | Spark plug electrode | |
US2344597A (en) | Electrode for sparking plugs | |
GB510640A (en) | Improvements relating to alloys | |
US2239561A (en) | Spark plug | |
GB620227A (en) | Improvements in and relating to spot welding electrodes | |
DE834911C (en) | Thermocouples with high thermal power and high heat resistance | |
US2392944A (en) | Spark plug electrode | |
GB540795A (en) | Improvements in the heat treatment of metal alloys | |
JPS5834151A (en) | Electrode material for ignition plug | |
US4195988A (en) | Au-Pd-Cr Alloy for spark plug electrodes | |
GB591420A (en) | Improvements in or relating to spark gap or sparking plug electrodes | |
US2432888A (en) | Platinum base alloy and spark plug electrode | |
US2042155A (en) | Alloy | |
GB837236A (en) | Improvements in or relating to spinning nozzles | |
US1274395A (en) | Spark-plug electrode and alloy therefor. | |
US2030921A (en) | Copper-beryllium alloys | |
GB1582428A (en) | Copper alloy | |
GB556330A (en) | Improvements relating to sparking plugs | |
DE960842C (en) | Melting wire | |
DE467467C (en) | Discharge tubes | |
GB574875A (en) | Improvements relating to sparking plug electrodes | |
GB535921A (en) | Improvements in and relating to copper base alloys |