Metallurgical apparatus – With control means responsive to sensed condition
Patent
1983-03-24
1985-07-16
Rutledge, L. Dewayne
Metallurgical apparatus
With control means responsive to sensed condition
266104, 266112, 219155, 339 5RL, C21D 960
Patent
active
045291756
ABSTRACT:
It is known to anneal non-ferrous strip material by passing the strip continuously around a pair of spaced pulleys and effecting a short circuit between the incoming and outgoing strip material to form a closed electrical loop of continuously moving strip material around the pulleys. The material in the closed moving loop is heated to anneal temperature by inserting an induction coil in the run around the pulleys so that under electrical inductive effects a current is induced in the loop thus raising its temperature. The incoming and outgoing strip material overlaps in the groove of one of the pulleys, the incoming material being fed into the loop formation at the point of overlap in a spiralling path which leads or directs the strip laterally and towards the plane of the annealing loop. Loading of the pulleys is thus made easier, arcing and sparking is avoided at overlap, and the life of the system is extended. The insulated groove is made adjustable to accommodate strip material of either rectangular of circular cross-section.
REFERENCES:
patent: 2993114 (1961-07-01), Bunch et al.
patent: 4116422 (1978-09-01), Vogel et al.
patent: 4117295 (1978-09-01), Beach
patent: 4118617 (1978-10-01), Moreau
patent: 4221947 (1980-09-01), Bonikowski
Beta Instrument Company Limited
Brody Christopher W.
Rutledge L. Dewayne
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