GB1099387A - Improvements in and relating to sparking plug electrodes - Google Patents

Improvements in and relating to sparking plug electrodes

Info

Publication number
GB1099387A
GB1099387A GB3652865A GB3652865A GB1099387A GB 1099387 A GB1099387 A GB 1099387A GB 3652865 A GB3652865 A GB 3652865A GB 3652865 A GB3652865 A GB 3652865A GB 1099387 A GB1099387 A GB 1099387A
Authority
GB
United Kingdom
Prior art keywords
micron
powder
sparking plug
relating
plug electrodes
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
Application number
GB3652865A
Inventor
John Frederick Walter Brown
Michael Eugene Cronin
Joseph Aidan Stevenson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Johnson Matthey PLC
Original Assignee
Johnson Matthey PLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Johnson Matthey PLC filed Critical Johnson Matthey PLC
Priority to GB3652865A priority Critical patent/GB1099387A/en
Publication of GB1099387A publication Critical patent/GB1099387A/en
Expired legal-status Critical Current

Links

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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

A sintered sparking plug electrode or electrode tip is made from a powder consisting of Ru or a Ru - Ir alloy, the powder particles having a size of 1 to 76 microns (-200 mesh B.S.) and a particle size distribution of 20-35% by weight from 10 micron to 20 micron and 30-50% by weight from 20 micron to 30 micron. The Ru - Ir alloy may contain up to 10% Ir, the powder is compacted to 54-68% of theoretical density, sintered in an inert or reducing atmosphere at 1500 DEG -1600 DEG C., repressed and then resintered at 1500 DEG -1600 DEG C. Prior to pressing the powder is dried at 120 DEG C.
GB3652865A 1965-08-25 1965-08-25 Improvements in and relating to sparking plug electrodes Expired GB1099387A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3652865A GB1099387A (en) 1965-08-25 1965-08-25 Improvements in and relating to sparking plug electrodes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3652865A GB1099387A (en) 1965-08-25 1965-08-25 Improvements in and relating to sparking plug electrodes

Publications (1)

Publication Number Publication Date
GB1099387A true GB1099387A (en) 1968-01-17

Family

ID=10388977

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3652865A Expired GB1099387A (en) 1965-08-25 1965-08-25 Improvements in and relating to sparking plug electrodes

Country Status (1)

Country Link
GB (1) GB1099387A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0400950B1 (en) * 1989-05-29 2000-02-09 Ngk Spark Plug Co., Ltd Spark plug

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0400950B1 (en) * 1989-05-29 2000-02-09 Ngk Spark Plug Co., Ltd Spark plug

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