| 简介 |
A solenoid valve and method of making the same wherein a magnetic valve plunger is doped with a magnetic material and fully saturated, whereby the amount or manner of doping determines the magnetic strength of the valve plunger. In an exemplary embodiment, the valve plunger is made of a nylon doped with an amount of a rare earth metal such that the valve plunger has a desired magnetism when the magnetic dopant is magnetically saturated. The plastic valve plunger, though having magnetic characteristics, can retain desirable characteristics of the plastic material such as a low coefficient of friction and good resistance to harsh chemicals. |
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