Method for the heat treatment of workpieces
AssigneeALD Vacuum Technologies GmbH
InventorsKlaus Löser, Wilfried Zenker
Life of this patent
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Abstract
An apparatus for the heat treatment of workpieces comprising comprising a plurality of evacuable chambers connected through airlocks, a conveyor, preferably a circular chain conveyor for the transport of the workpieces along a path through the chambers, an electric resistance heating device, a cooling blower, and a heat exchanger, a plurality of workpieces of equal size and configuration, in particular backsaw blades, are placed tightly one on top of another and form a stack which is placed into a frame made of profile cuts, whereby the frame is capable of being coupled to a conveyor by means of suspension elements.
Claims5
A method for the heat treatment of sawblades of equal size and configuration comprising the steps of:
- (a) heating said sawblades in a substantially oxygen free heating chamber;
- (b) transporting, via a conveyor, said sawblades along a path from said heating step to a quenching chamber;
- (c) quenching said sawblades in said quenching chamber with a cooling blower and a heat exchanger;
- wherein said quenching and heating steps are accomplished via a frame means connected by suspension elements to said conveyor and having a compact block to ensure that said sawblades are lying closely on top of one another so as to provide even heating of said sawblades.
Dependencies are inferred from the claim text.