Heat treatment furnace

Abstract

In the present disclosure, a motor core can be degreased prior to straightening annealing without a heating device or a vacuum device dedicated to degreasing being provided. A heat treatment furnace according to an embodiment of the present disclosure includes a degreasing chamber for degreasing a motor core, a heating chamber with which the degreasing chamber directly communicates and which is configured to anneal the motor core that has passed through the degreasing chamber, by using a converted gas generated by a converted gas generation device, as an in-furnace atmosphere gas, and a gas flow formation section GF configured in such a manner that the converted gas in the heating chamber flows toward the degreasing chamber.

Dependencies are inferred from the claim text.