BELL-TYPE ANNEALING FURNACE WITH HEAT ACCUMULATION AND REGENERATION TYPE COMBUSTION APPARATUS

PROBLEM TO BE SOLVED: To correct differences in temp. in a peripheral direction with respect to a material to be treated in the upper part of a furnace and to perform nearly perfect soaking. SOLUTION: In this annealing furnace 1, a material 5 to be treated is covered with an inner cover 3 and furthe...

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Bibliographische Detailangaben
Hauptverfasser:	TAKANO SHINICHI, MORIYAMA YOSHITERU, NAKAGIRI SHINICHI, OKANO MASAKI, HAYASHI YUJI, HAYASHI KAZUYUKI, HANADA TOSHIAKI, SHIMADA TOSHIO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Zusammenfassung:	PROBLEM TO BE SOLVED: To correct differences in temp. in a peripheral direction with respect to a material to be treated in the upper part of a furnace and to perform nearly perfect soaking. SOLUTION: In this annealing furnace 1, a material 5 to be treated is covered with an inner cover 3 and further this inner cover 3 is covered with an outer cover 4, and combustion is carried out in a combustion chamber 6 between these inner cover 3 and outer cover 4 to heat-treat the material 5 to be treated. A couple of slit-type heat accumulation and regeneration type combustion apparatus 7a, 7b are located in the 180 deg. symmetrical positions on the periphery in the lower part of the outer cover 4 so that vertically flat flames are formed toward the combustion chamber 6 from the tangential direction. Further, a vent hole 8 for releasing a part of the exhaust gas resultant from combustion is formed in a ceiling 4a of the outer cover 4.