Machine for heat treating objects of great length

Details Machine for heat treating objects of great length Machine for heat treating objects of great length

1977-05-11

1979-05-29

Reynolds, Bruce A.

Electric heating

Metal heating

Of cylinders

144327, 144309B, 144317, 156380, 156443, 219 1081, B23K 1302, H05B 904, B23B 104

Patent

active

041568052

ABSTRACT:
The machine comprises two electrodes connected to a high frequency electric current generator and adapted to subject the object to be heated to an electric field. The first electrode comprises a table provided with at least one opening through which projects a roll for guiding the travel of the object. A plurality of pairs of electrically insulating rollers for exerting pressure on the object are mounted on the table and at least one pair is movable with respect to the others so as to curve the object as heat treatment proceeds. Section members supporting the rollers extend the table of the electrode and are in electric contact with a support box structure for the second electrode which is connected to earth.

REFERENCES:
patent: 2563098 (1951-08-01), Brown
patent: 2783344 (1957-02-01), Warren
patent: 3149217 (1964-09-01), Reed et al.
patent: 3888715 (1975-06-01), Fraser et al.
patent: 4035223 (1977-07-01), Russell

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