Sealing device for sealing the entrance / exit of a heat treating furnace with a protective atmosphere.

摘要

POSITIVELY SEALING DEVICE PERFORMS THE SEALING OF OUTPUT / INPUT furnace heat treatment CONTROLLED ATMOSPHERE. A metal (21) band is clamped between a pair of rollers ELASTICOS (23) and a pair of rollers ELASTICOS ADDITIONAL (26) so as to seal the input / output an annealing furnace (22) annealed CONTINUOUSLY THE BAND METALLIC (21) in a gas atmosphere containing fuel HYDROGEN GAS AND SIMILAR. BETWEEN THE ROLLERS ARRANGED AND ROLLERS ELASTICOS ELASTICOS ADDITIONAL (26) intermediate rollers (25) lie. OUTDOOR SURFACES PERIPHERAL ROLLS elastics (23) are sealed by sealing PLATES (24). THUS THE ATMOSPHERE INSIDE THE OVEN AND ARE OUTSIDE AIR DEVICES separated by sealing in stages.