Heat-treating apparatus and a method for the same

摘要: According to this invention, a boat carried by an elevator is put on supporting unit installed at delivery position and capable of moving up down then, the delivered from transfer means for heat-treating furnace. Therefore, boats can be transferred common positions furnace arranged in multiple stages. Even when furnaces different types are stages, those using elevator. As result, sent arrive work position, example, with extremely high efficiency simple devices.