INSTALLATION FOR HEAT TREATMENT OF PARTS Russian patent published in 1995 - IPC

FIELD: heat treatment of parts. SUBSTANCE: installation has a hermetically sealed housing, heating chamber and cooling unit CU. The cooling unit serves as a receiving tray for heated parts and for their primary cooling-down to a temperature providing their hardening. The cooling unit is a cylindrical bowl with a water cooling system in the form of a rectangular helical duct, located on the internal side surface of the cylindrical bowl throughout the entire height of its generating line with a slight inclination. The upper wall of the water duct forms guides used for lifting the parts. The inlet and outlet of the helical water duct are connected to the cold water source positioned outside the housing. The installation provides for cooling of heated workpieces without using special coolants. EFFECT: decreased dimensions of cooling unit and simplified design. 1 cl, 2 dwg