GB838472A - Improvements in and relating to ceramic spark plug insulators - Google Patents

Improvements in and relating to ceramic spark plug insulators

Info

Publication number
GB838472A
GB838472A GB3575/58A GB357558A GB838472A GB 838472 A GB838472 A GB 838472A GB 3575/58 A GB3575/58 A GB 3575/58A GB 357558 A GB357558 A GB 357558A GB 838472 A GB838472 A GB 838472A
Authority
GB
United Kingdom
Prior art keywords
alkaline earth
blend
spark plug
firing
relating
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
GB3575/58A
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.)
Federal Mogul Ignition LLC
Original Assignee
Champion Spark Plug Co
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 Champion Spark Plug Co filed Critical Champion Spark Plug Co
Publication of GB838472A publication Critical patent/GB838472A/en
Expired legal-status Critical Current

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
    • H01T13/38—Selection of materials for insulation
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics

Abstract

At least the surface at the firing end of a ceramic spark plug insulator is produced by sintering a blend consisting of SnO2 or of another tin compound which is converted during firing to SnO2 and BeO in certain specified proportions and 1 to 5 parts of a flux comprising a magnesium silicate and an alkaline earth oxide or another alkaline earth compound which is converted during firing to the oxide. The blend may be used to form the entire insulator or only a portion thereof as the firing tip or the surface of the tip. A plasticizer or binder e.g. from 1 to 2 parts of bentonite is also preferably employed in the blend. Calcium carbonate or whiting is a convenient alkaline earth compound. Barium carbonate or strontium carbonate can also be so employed. The corresponding oxides may be used. Talc is a convenient magnesium silicate, for use as part of the flux.
GB3575/58A 1957-06-19 1958-02-04 Improvements in and relating to ceramic spark plug insulators Expired GB838472A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US838472XA 1957-06-19 1957-06-19

Publications (1)

Publication Number Publication Date
GB838472A true GB838472A (en) 1960-06-22

Family

ID=22181070

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3575/58A Expired GB838472A (en) 1957-06-19 1958-02-04 Improvements in and relating to ceramic spark plug insulators

Country Status (1)

Country Link
GB (1) GB838472A (en)

Similar Documents

Publication Publication Date Title
GB1105199A (en) Metallo-ceramic compositions for protection of metallic surfaces
GB664370A (en)
ZA747295B (en) Spark plug with inductive suppressor
GB835961A (en) Improvements in and relating to the production of ceramic material
GB838472A (en) Improvements in and relating to ceramic spark plug insulators
EP0253957A3 (en) Sprayable refractory masses or unfired refractory bodies based on magnesium oxide
GB692706A (en) Electrostrictive ceramics and transducers utilizing them
GB526002A (en) Improvements in and relating to spark plug insulators and method of making the same
GB747716A (en) High permittivity ceramic material
GB736117A (en) Improvements relating to ceramic dielectric materials
GB478794A (en) Improvements relating to ceramic material
GB441115A (en) Improvements relating to the production of electrical insulating materials
GB599771A (en) Improvements relating to dielectric compositions
GB860863A (en) Ceramic body
GB1064325A (en) Improvements in or relating to dielectric compositions
GB139315A (en) Improvements in and relating to porcelain
GB805337A (en) Development of an alumina-wollastonite ceramic body
GB657341A (en) Improvements in or relating to the manufacture of ceramic compositions and of electrical apparatus containing the same
JPS5436598A (en) Ceramic dielecyric composite for temperature compensation
GB1073529A (en) Ceramic material
GB539608A (en) Ceramic composition for use as an electrical insulator
GB736639A (en) Ceramic dielectric and process of manufacture
GB700756A (en) Improvements in or relating to ceramic materials and methods of making same
GB1032736A (en) Improvements in ceramic frits
ES273217A1 (en) Industrial procedure for the obtaining of a ceramic mass for baldosines (Machine-translation by Google Translate, not legally binding)