Method and apparatus for heating a metallic elongated product

Details Method and apparatus for heating a metallic elongated product Method and apparatus for heating a metallic elongated product

1989-12-29

1991-04-16

Shaw, Clifford C.

Electric heating

Metal heating

Endless strip

219 50, C21D 962, H05B 100

Patent

active

050085140

ABSTRACT:
Induction heating is used to heat a moving strip (4) of non-ferrous material by causing it to form a short-circuited loop acting as the secondary winding of a transformer (1), the loop passing over pulleys (6, 9, 5 or 16). In one arrangement, one of the pulleys (16) has a double groove and the strip (4) passes over one groove (18), around another of the pulleys (19) and back to the other groove (20) of the double grooved pulley (16). This enables the strip to enter or leave the inside of the loop without colliding with the other side of the loop. In an alternative arrangement, the strip enters or leaves the inside of the loop at an angle to the plane of the loop and is prevented from contacting the other side of the loop by an insulating spacer (7).

REFERENCES:
patent: 2064589 (1936-12-01), Convers
patent: 3182167 (1965-05-01), McBrien
patent: 3307015 (1967-02-01), Hagiwara
patent: 4117295 (1978-09-01), Beach
patent: 4118617 (1978-10-01), Moreau

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