Electric heating – Metal heating – Of cylinders
Patent
1981-11-19
1984-07-10
Shaw, C. C.
Electric heating
Metal heating
Of cylinders
219 1069, 219 1071, 219 1079, 266129, H05B 636
Patent
active
044594518
ABSTRACT:
An inductor for heating rotating metal workpieces, especially for surface hardening the running surfaces, transition radii and shoulders of camshafts to different depths, has two or more heating regions which can be brought into the required heating position by changing the direction of rotation of the workpieces and, when the inductor has more than two heating regions, by using a movable abutment. When the inductor has two heating regions, then change from one region to another is achieved by simply changing the direction of workpiece rotation so that friction causes the inductor to be displaced. When the inductor has, for example, three heating regions (13, 14, 15), then an abutment (11) is used to control the inductor displacement. For more rapid displacement of the inductor or for cases where the workpiece is stationary, an external pusher device may be used.
REFERENCES:
patent: 2484238 (1949-10-01), Molloy
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patent: 3174738 (1965-03-01), Seulen et al.
patent: 3967089 (1976-06-01), Seulen et al.
patent: 4194728 (1980-03-01), Stengel et al.
patent: 4258241 (1981-03-01), Soworowski
Drucker William A.
Leung Philip H.
Maschinenfabrik Alfing Kessler GmbH
Shaw C. C.
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