AGGREGATE FOR THERMAL DIFFUSION ALLOYING OF PIECES Russian patent published in 1996 - IPC

FIELD: mechanical engineering, chemical and other branches of industry for chemical thermal treatment of pieces. SUBSTANCE: aggregate for thermal diffusion treatment of pieces has capable to turn electrical furnace with located in it and capable to rotate retort with lid and partitioner, that divides retort for auxiliary and operational zones. Partitioner is made in the form of perforated partitions made as screw-type line. Positive effect is increased aggregate productivity due to decreasing of volume of auxiliary zone to 4 - 8 % from total volume of retort and also due to decrease of alloying mixture carrying off during piece unloading from retort to 0.1 - 0.2 %. Besides, all treated pieces obtain uniform thickness of coating. EFFECT: increased productivity, decreased alloying mixture carrying off during pieces unloading from retort, uniform thickness of all treated pieces thickness of coating. 1 dwg