Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:: MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Class:: FURNACES; KILNS, OVENS OR RETORTS
Subclass:: FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS

TUNNEL(S) type furnaces

7 direct subcodes

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F27B 9/02 of multiple-track type; of multiple-chamber type; Combinations of furnaces
F27B 9/04 adapted for treating the charge in vacuum or special atmosphere
F27B 9/06 heated without contact between combustion gases and charge; electrically heated
F27B 9/12 with special arrangements for preheating or cooling the charge
F27B 9/14 characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
F27B 9/28 for treating continuous lengths of work
F27B 9/3 Details, accessories or equipment specially adapted for furnaces of these types