Patent ID: 6147328
Filing Date: 2000-11-14
Classification: C21D,F27B,F27D

Abstract:
Apparatus for the heat treatment of workpieces comprising a plurality of evacuable chamber, at least one of the chambers being a heating chamber heated by a heating element and at least one of the chambers being a cooling chamber connected through airlocks, a conveyor for the transport of the workpieces along path having a transport direction through the chambers, and electric resistance heating device, a cooling blower, and a heat exchange,wherein a plurality of workpieces of equal size and configuration lay closely together and form a compact block and are placed into a frame constructed of profile sections, whereby the frame is coupled to a conveyor by means of suspension elements, wherein said frame comprises a lower frame part which extends horizontally and is carrying at least two vertically extending side parts formed from profile sections facing each other in pairs for holding the ends of workpieces, whereby the frame is adapted to be connected to at least one set of two vertically extending side parts comprising profile sections facing each other for holding the workpieces, whereby said frame is adapted to be connected to the conveyor by means of suspension elements.