Importance

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Abstract

A heat treatment apparatus and control method enabling the apparatus to settle down the internal temperature of a treating vessel to a target temperature accurately and quickly. The apparatus includes a furnace body with a heater on an inner circumferential surface thereof, a treating vessel disposed inside the furnace body, a cooling medium supply blower and cooling medium release blower connected to the furnace body, and a temperature sensor provided inside the treating vessel. A signal from the temperature sensor is sent to a heater output computing unit of a controller. The computing unit determines a heater output level to be obtained during temperature regulation with the heater only, the heater output level being based on a preset temperature that has been determined by a temperature determining unit and temperature detected by the temperature sensor. A blower output computing unit activates blower output based on the heater output level.

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First Claim