| 摘要 |
PROBLEM TO BE SOLVED: To miniaturize a device itself by effectively utilizing a space inside a vacuum furnace, while conducting a cooling medium evenly in a heat insulating container with a simple configuration.SOLUTION: A vacuum heat treatment device 100 includes: a vacuum furnace 110; a heat insulating container 120; a heating section 140; a lid section 130 for causing at least an opening 126 of the heat insulating container in a closed state while heating an object to be treated; a cooling device 150 for cooling and delivering a cooling medium, and recovering the delivered cooling medium; a guide plate 160 for guiding, when an opening 126 of a heat insulating container 120 is in an open state, the cooling medium, which has been delivered by a cooling device 150, into the heat insulating container through one opening 126 of the heat insulating container 120; and a movement mechanism 170 configured to insert the guide plate into space for the movement of a lid section when the opening is in an open state, and move the guide plate so as to retract the guide plate from the spaces for the movement of the lid sections before the lid section moves in order to close the opening of the heat insulating container. |
