| 摘要 |
PROBLEM TO BE SOLVED: To provide a vacuum quenching treatment installation which enables execution of a necessary quenching treatment without a significant rise of production costs by providing a simple liquid cooling chamber while utilizing the structure of a conventional vacuum quenching treatment installation.SOLUTION: In a vacuum quenching treatment installation, a plurality of vacuum heating chambers 21A to 21C and a carrier device 3 for charging/removing work into/from the vacuum heating chambers are housed in an enclosure 1 with one end opened, and a housing 41 of a gas cooling chamber 4 is connected air-tightly to the opened part of the enclosure 1. One opening of a carrier chamber 6, with both ends opened, provided internally with a lift-provided fork 61 is connected to an opening 43 formed in the housing 41 of the gas cooling chamber 4; the liquid cooling chamber 7 is connected to the other opening of the carrier chamber 6; and an opening 62 for charging/removing work into/from the carrier chamber 6 is provided. |
