| 摘要 |
The invention provides a heat treatment apparatus for a powder material. With the heat treatment apparatus, when the powder material is subjected to heat treatment at a temperature of about 1500 DEG C or higher, gas generated by the powder material can be smoothly drawn in a heating stage, and the bridging can be prevented from being generated in a cooling stage, thereby ensuring the flowability of the powder material and the powder material can be homogeneously heat-treated. The heat treatment apparatus comprises an upper feeding unit (3) by which a powder material (P) is fed into the apparatus; a guide shaft (7) which guides the powder material downwardly in the gravity direction; a lower discharge unit (4) which discharges the powder material; an upper stirring member (20) which is inserted downwardly from above the guide shaft and used for stirring a powder part and the periphery thereof of the powder material in the guide shaft; and a lower stirring member (5) which is inserted upwardly from below the guide shaft with a distance from the upper stirring member (20) and used for stirring the power material of the guide shaft. |
