INTEGRATED YOKE FOR ELECTROMAGNETIC DEVICE AND ELECTROMAGNETIC DEVICE USING THE YOKE

摘要

PROBLEM TO BE SOLVED: To solve the problems of (1) the difficulty of attaining accuracy in the shape of yoke due to formation of a cut-away part and (2) a process of forming a cut-away part is necessary, which have been generated because a cut-away part must be formed positively for the control of formation of magnetic path to the magnetic material yoke used in the electromagnetic device of prior art. SOLUTION: An integrated yoke 1 for electromagnetic device is formed of a composite magnetic material, having a maximum permeability of 400 or higher where a non-magnetic part 1-2 having permeability of 2 or less, is partially formed of an alloy steel of Fe-Cr-C system through adjustment of carbide.