MULTI-CHAMBER FURNACE FOR VACUUM CEMENTATION AND HARDENING OF GEARS, SHAFTS, RINGS AND SIMILAR TREATED WORKPIECES Russian patent published in 2017 - IPC F27B9/02 F27B19/02 F27B9/04 C21D9/28 C21D9/40 C21D9/32 C21D1/06 C21D1/18 C21D1/62 

FIELD: machine engineering.

SUBSTANCE: invention relates to the multi-chamber furnace for vacuum cementation and hardening of separate workpieces, such as gears, shafts and rings. The furnace has three technological chambers made in the form of a heating chamber, a cementation chamber and a diffusion chamber which are placed one above the other with formation of vertical arrangement. Said technological chambers are located between two transportation chambers with built-in mechanisms for loading/unloading of workpieces to be processed into/from the separate technological chambers. Each technological chamber is equipped with graphite heating system with thermal insulation and mechanism of step feed.

EFFECT: strength and compactness of structure.

5 cl, 5 dwg