Stepping motor and method of manufacturing hard magnetic alloy t

Details Stepping motor and method of manufacturing hard magnetic alloy t Stepping motor and method of manufacturing hard magnetic alloy t

1998-07-08

2000-03-07

Enad, Elvin

Electrical generator or motor structure

Dynamoelectric

Rotary

148101, 310 44, H01F 102, H02K 3700, H02K 102

Patent

active

060344504

ABSTRACT:
In a stepping motor having a stator provided with an electromagnet and a rotor composed of a hard magnetic alloy, the hard magnetic alloy comprises at least one element T of Fe and Co, at least one element R of rare earth elements and B, has a remanence ratio of at least 0.7, remanent magnetization (Ir) of at least 120 emu/g and coercive force (iHc) of at least 1 kOe and includes a fine crystalline phase having an average crystal grain size of 100 nm or less as a main phase. The hard magnetic alloy is solidified and compacted by making use of a softening phenomenon which arises when the amorphous phase contained in the structure of the hard magnetic alloy is crystallized. A method of manufacturing the hard magnetic alloy used to the stepping motor is also disclosed.

REFERENCES:
patent: 4406958 (1983-09-01), Palmero et al.
patent: 5000796 (1991-03-01), Chatterjee
patent: 5049208 (1991-09-01), Yajima et al.
patent: 5089065 (1992-02-01), Hamano et al.
patent: 5641363 (1997-06-01), Fukuno et al.
patent: 5750044 (1998-05-01), Yoneyama et al.

Affiliated with

Also associated with

Rating

Stepping motor and method of manufacturing hard magnetic alloy t does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Stepping motor and method of manufacturing hard magnetic alloy t, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stepping motor and method of manufacturing hard magnetic alloy t will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-366056