Title:
RESISTOR-FILLED IGNITION PLUG RESISTOR COMPOSITION
Document Type and Number:
Japanese Patent JPS5917202
Kind Code:
A
Abstract:
A resistor composition for spark plugs comprises 100 wt parts of base mixture of 30-70 wt glass frit with the balance being an inorganic aggregate, 0.1-10 wt parts of carbonaceous material calculated as carbon, 0-30 wt parts of stabilizing agent for resistance under load and 0.1-15 wt parts of boron, boric acid and/or a borate. This composition reduces pores on sealing.
Inventors:
SAKAI MASAO
SUZUKI YASUHIKO
SUGIMOTO MAKOTO
SUZUKI YASUHIKO
SUGIMOTO MAKOTO
Application Number:
JP12573382A
Publication Date:
January 28, 1984
Filing Date:
July 21, 1982
Export Citation:
Assignee:
NGK SPARK PLUG CO
International Classes:
H01C7/00; H01T13/20; H01T13/38; H01T13/41; (IPC1-7): H01C7/00; H01T13/00
Attorney, Agent or Firm:
Asato Kato