Heat treating process for achieving forced ageing

Details Heat treating process for achieving forced ageing Heat treating process for achieving forced ageing

1975-03-31

1976-01-13

Satterfield, Walter R.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

29597, 310179, 148142, 148154, C21D 104, C21D 110, H01R 4300

Patent

active

039322050

ABSTRACT:
For forced ageing of a commutator intended for a rotary electrical machine while the commutator is being rotated, heat is being supplied to it by a coil for generating a high frequency magnetic field arranged outside the commutator in such a way that the field is directed substantially perpendicular to the commutator surface, the coil being supplied with a current of a frequency of at least 1,000 Hz.

REFERENCES:
patent: 2181921 (1939-12-01), Schlup
patent: 2782330 (1957-02-01), Baclawski
patent: 3894892 (1975-07-01), Conta

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