The invention relates to an automatic-opening / closing anticorrosive
pollution-
discharge dry-purification observation operation-monitoring three-chamber
vacuum furnace, belonging to the technical field of vacuum furnaces. The
vacuum furnace comprises a
cooling chamber, a heating chamber, a preparation chamber, a vacuumizing mechanism, an observation device, an automatic opening and closing mechanism, an operation
monitoring system and an exhaust purifier, wherein both sides of the heating chamber are respectively connected with the preparation chamber and the
cooling chamber through separation walls; each separation wall is provided with a heat insulation door; the
cooling chamber comprises an air
quenching chamber and an oil
quenching chamber, the upper part of the air
quenching chamber is provided with an air charging quick-cooling mechanism, and the lower part of the oil quenching chamber is provided with an oil quenching
oil tank provided with a stirrer; the heating chamber is provided with a gas
convection circulation mechanism; and the heating chamber and each heat insulation door are respectively sequentially provided with a heat
insulation layer, a vacuum layer and a stainless steel shell from inside to outside. The
vacuum furnace has the advantages of safe oil quenching, uniform material heating, favorable heat insulation effect, high product quality, energy saving and high
machining efficiency, can observe the
machining condition, can automatically open the furnace door, can prevent the vacuumizing mechanism from being corroded, and is environment-friendly in evacuation.