SPARK PLUG HAVING A POWDER CAPSULE

摘要

The present disclosure relates to methods for producing spark plugs and/or spark plug components, and a capsule which may be used to produce a spark plug or spark plug component. The capsule may comprise a housing of a material which is unstable when heated a threshold temperature, and the capsule may further be filled with one or more powders, whereupon heating of the capsule the housing may break down and the powders may be sintered or fused into a resistive body. The presently disclosed method may simplify and/or reduce the cost of producing spark plugs using known methods of inserting powdered precursor materials.

主权项

1. A method for producing spark plugs, comprising:
providing a spark plug blank having an insulator that comprises a hollow chamber that extends along a longitudinal axis of the insulator; arranging a central electrode in the hollow chamber of the insulator so that an end of the central electrode protrudes beyond a combustion chamber end of the insulator; providing a capsule that is filled with at least one powder; inserting the capsule into the hollow chamber of the insulator; arranging a connecting electrode in the hollow chamber of the insulator so that an end of the connecting electrode protrudes beyond a connecting end of the insulator; and heating the capsule.