| 摘要 |
PROBLEM TO BE SOLVED: To secure connection of an armature and an armature shaft to each other on a solenoid valve system. SOLUTION: An armature 1 and an armature shaft 4 are connected to each other by friction welding. Minutely, an end part of the armature shaft 4 is fitted in a hole 21 formed on the armature 1, they are connected to each other on this fitting part, and this fitting part is made into a tapered shape contracted in diameter toward the upper side. Additionally, a receiver part 23 in made to receive a spring shaft 11 to be energized by a return spring 13 by exposing an end surface of the armature shaft 4 on a surface of the opposite side of the armature 1. Furthermore, the armature 1 is constituted of a strong magnetic body, the armature shaft 4 is constituted of a non-magnetic body, and the armature shaft 4 is constituted of a lower specific value material than the armature 1.
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