Stator yoke and method of producing same

Details Stator yoke and method of producing same Stator yoke and method of producing same

1995-06-20

1997-07-15

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 43, H02K 3714, H02K 102

Patent

active

056486928

ABSTRACT:
There is provided a stator yoke capable of improving magnetic characteristics and a rust-proofing effect of a stator yoke produced by using a Fe-Cr type alloy. When a stator yoke is produced by using a Fe-Cr type alloy, its magnetic characteristics can be improved, but when press working is made to obtain a predetermined shape, the magnetic characteristics drop. Annealing is carried out so as to recover the magnetic characteristics. This annealing generates the property change of a surface layer and a rust-proofing effect lowers.

REFERENCES:
patent: 4410769 (1983-10-01), Tibbetts
patent: 4990806 (1991-02-01), Kikuchi et al.
patent: 5331237 (1994-07-01), Ichimura

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