| 摘要 |
PROBLEM TO BE SOLVED: To improve workability and reliability of a magnetic cylinder unit, by using ferrite stainless steel material containing titanium to form the magnetic cylinder unit. SOLUTION: A magnetic cylinder unit 2 is formed by using a ferrite stainless steel material containing titanium. The magnetic cylinder unit 2 is assembled with a valve seat member 5, a valve element 7, an electromagnetic coil 11, a resin cover 14, etc. When the magnetic cylinder unit 2 is formed, a metal plate 16 is plastically deformed by, for instance, deep drawing work or the like, a valve seat member mounting part 2A, an actuator mounting part 2B, a resin cover forming part 2C, etc., are worked to be molded into a stepped cylindrical shape. Therefore, for instance, even in the case of forming the magnetic cylinder unit 2 of slender stepped cylindrical shape in thin thickness, while ensuring its strength and corrosion resistance, flexibility can be given to the ferrite stainless steel material by titanium, workability of the magnetic cylinder unit 2 can be improved.
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