Atmosphere injection system

Details Atmosphere injection system Atmosphere injection system

C - Chemistry, Metallurgy

21

D

38/23, 148/43

C21D 1/76 (2006.01) C23C 8/20 (2006.01) F27B 14/04 (2006.01)

Patent

CA 1145232

ATMOSPHERE INJECTION SYSTEM Abstract of the Disclosure This invention is an apparatus and method for the injection of atmosphere into a positive pressure furnace treatment chamber. The gas to be injected into the furnace is brought to-a manifold along the outer wall of the furnace. A plurality of tubes are connected to the manifold and passed through the wall of the furnace into the treatment chamber. Jet nozzles at the ends of the tubes are strategically located within the furnace chamber so as to cooperate with the geometry of the furnace and the load so that atmosphere injected into the furnace penetrates the load area and circulates to uniformly treat the load. This invention is particularly useful in the continuous carburizing furnace.

354092

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