SPARK PLUG HOUSING WITH CORROSION PROTECTION ON INNER SIDE, AS WELL AS SPARK PLUG AND PRODUCTION METHOD

The invention relates to a spark plug housing (2) comprising an inner side (24), an outer side (23) and a longitudinal axis, which extends from an end (21) of the spark plug housing (2) facing a combustion chamber to an end (22) of the spark plug housing (2) facing away from the combustion chamber, wherein the spark plug housing (2) has a circumferential shoulder (25) on the inner side (24) thereof, which is designed such that a spark plug isolator (3) rests on same, wherein the spark plug housing (2) has a corrosion protection layer (50) on the inner side (24) thereof, which is formed on a section (55) of the inner side (24) of the spark plug housing (2), wherein the section (55) extends from the end (21) of the spark plug housing (2) facing a combustion chamber to at least over the shoulder (25) and along the inner circumference of the spark plug housing (2). 本发明涉及一种火花塞壳体（2），其具有内侧（24）、外侧（23）和纵轴线，该纵轴线从火花塞壳体（2）的面向燃烧室的端部（21）延伸至火花塞壳体（2）的背离燃烧室的端部（22），其中火花塞壳体（2）在其内侧（24）上具有环绕的凸肩（25），该凸肩设立用于使火花塞绝缘体（3）靠置在该凸肩上，其中，火花塞