| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology which inhibits oxidization of Al in a coil included in a glow plug.SOLUTION: A glow plug includes: a sheath pipe which is closed at one end; a coil disposed at the inner side of the sheath pipe; and an oxide disposed between the sheath pipe and the coil. The coil is formed by a clad material containing a core material containing aluminium and a nickel layer covering an outer periphery of the core material. |
