To provide a heating device capable of significantly unifying a fluidizing state and a heating state of a powder and granular material regardless of a place in a fluid bed and a size of the fluid bed, and properly heating a workpiece while keeping high heat efficiency.
This heating device for heating the metallic workpiece 1, applies the powder and granular material 2 heated by a high-temperature gas as a heat medium, includes the fluid bed 3 in which the workpiece 1 is immersed, uses porous metal heated to a high temperature and having air permeability as a bottom plate 4 of the fluid bed 3, and is constituted to introduce a high temperature gas passing through the bottom plate 4 into the fluid bed 3. Since the high temperature gas can be introduced into the fluid bed 3 uniformly from the entire bottom plate 4, the fluidizing state and the heating condition can be properly unified. Further, since the bottom plate 4 itself is heated to the high temperature, loss in conveying hot air and pressure loss hardly generate. Thereby, high heat efficiency can be kept.
TERAUCHI KENJI
SAKOTA AKINORI
| JPS62105495U | 1987-07-06 | |||
| JP2004198011A | 2004-07-15 | |||
| JP2002188804A | 2002-07-05 |
Yoshihiro Morimoto
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