| 摘要 |
PURPOSE:To obtain a simplified, miniaturized and economical heat treatment device capable of heating or cooling a work uniformly. CONSTITUTION:An air feeding duct 41 and an air discharging duct 42 are connected to another air feeding duct 32 and another air discharging duct 31, which are connected to a treating chamber in which a work is received, in a relation that the former are intersected with the latter orthogonally while a fan 61 is interposed in either one of the air feeding duct 41, or the air discharging duct 42 and a switching damper 51 is mounted in the orthogonally intersecting section between the air feeding and discharging ducts 31, 32 and the air feeding duct 41 as well as the air discharging duct 42. |
