SHAFT KILN OF RESISTANCE FOR THERMAL TREATMENT OF PARTS OUT OF STEELS AND ALLOYS Russian patent published in 2004 - IPC

FIELD: metallurgy.

SUBSTANCE: the invention is dealt with the field of electro-thermal equipment. The shaft kiln of resistance for a thermal treatment of component parts out of steels and alloys consists of: a housing, a lining, a muffle, heaters, a cover, tubes for a protective gas entry in the working space of the muffle and its exit out of it, a container for cooling component parts heated in the muffle and an adapter unit. The container for cooling is filled with a coolant and is enclosed with a water jacket. The muffle is made open in its lower part. The container for cooling through a detachable joint is hermetically connected with the lower part of the muffle using an adapter unit with a shutter. The invention allows to ensure accelerated and a uniform cooling of component parts of high dimensional accuracy in a protective medium, a capability to make loading of component parts into a heated furnace without an oxidation of a surface and realization of all known kinds of a thermal treatment.

EFFECT: accelerated and uniform cooling of parts of the high dimensional accuracy in a protective medium, loading component parts in the heated furnace without oxidation of surface.

2 cl, 1 dwg