F - Mech Eng,Light,Heat,Weapons – 26 – B
Patent
F - Mech Eng,Light,Heat,Weapons
26
B
34/53
F26B 7/00 (2006.01) C04B 41/87 (2006.01) F26B 21/04 (2006.01) F26B 23/02 (2006.01)
Patent
CA 1265926
ABSTRACT OF THE DISCLOSURE A method of heating a drying furnace for use in hot air-circulating type coating drying in which a hot air is sup- plied, under circulation, to the inside of the furnace thereby heating and drying coated articles, wherein heating for the fur- nace is conducted through a direct heating type hot air-circulat- ing path in which the air inside of the furnace sucked from a return duct is heated directly by a combustion gas from a burner and supplied under circulation from a supply duct again to the inside of the furnace while conducting a step of increasing the temperature by preheating the inside of the furnace, whereas heating for the furnace is conducted through an indirect heating type hot air circulating path in which the air inside of the fur- nace sucked from the return duct is heated in a heat exchanger and then supplied, under circulation, through the supply duct again to the inside of the furnace while conducting a coating drying step when the temperature inside of the furnace reaches a predetermined temperature.
501660
Katoh Kaname
Tachi Hideo
Takata Hideyuki
Tokushima Yasuo
Marks & Clerk
Toyota Motor Corporation
Trinity Industrial Corporation
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