| 摘要 |
<p>PURPOSE: To obtain an oil-immersed electromagnetic valve solenoid which is enhanced in mechanical strength, easily assembled, and excellent in magnetic characteristics, wherein the mechanical processing of the welded part of a hollow material provided with a blocking material and a fixed iron core at both its ends is dispensed with. CONSTITUTION: The welded parts 1a and 1b of a hollow material 1 provided with a blocking material 2 and a fixed iron core 3 at both its ends are not subjected to machining, and a yoke which is assembled together with a coil 6, a case 5, the fixed iron core 3, a movable iron core 8, and a hollow material 1 to constitute a magnetic circuit is split into two or more pieces along lines which pass over the inner wall of a ring-shaped hole.</p> |
