Method of and an apparatus for continuous heat treatment of sepa

Details Method of and an apparatus for continuous heat treatment of sepa Method of and an apparatus for continuous heat treatment of sepa

1980-12-22

1983-09-13

Dean, R.

Metal treatment

Compositions

Heat treating

148 203, 148157, 266 87, 266 88, 266251, 266252, C22F 104

Patent

active

044040431

ABSTRACT:
In a method for continuous heat treatment of separated elongated metallic material said material is conveyed stepwise through a single furnace chamber. Said furnace chamber comprises a heating section and an adjacent holding section. In the heating section the material is heated up to a treating temperature and in the holding section the material is held at the treating temperature both in an atmosphere of forced circulation of hot gas common to both furnace sections. The temperature of the circulated hot gas is automatically feedback-controlled at the location of the transition between the heating section and the holding section, the hot gas being set into forced motion in a single circulating zone and being heated up in a single heating zone with respect to the direction of passage of the material. Additionally the temperature of the material may be measured at the said location of the transition between the heating section and the holding section and the conveying movement of the material may be interrupted for the time necessary to heat up the material to the treating or holding temperature.

REFERENCES:
patent: 3953247 (1976-04-01), Elhaus et al.
patent: 4135704 (1979-01-01), Elhaus et al.
Modern Metals, p. 9, Sep., 1972.

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