| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat treatment furnace capable of reducing a manufacturing cost by sharing a hot air supply device 6. SOLUTION: This heat treatment furnace has an outer casing 1, an inner casing 2 provided in an inside of the outer casing 1 to form an upper space 1A, provided with an upper opening 2a in an upper face, and having an inside divided into the first area X2 and the second area X1, a work conveyer 3 provided to penetrate the insides of the outer casing 1 and the inner casing 2 and for conveying a work 30 to pass it through the inside of the inner casing 2, a plurality of heater units 5 arranged in parallel to form a space 52 therebetween each other along a work conveying direction X between the upper opening 2a and the work conveyer 3, and for heating the work, the single hot air supply device 6 for supplying hot air 6a for heating the work while passing the upper space 1A, the upper opening 2a and the space 52 between the heater units 52, and a hot air supply amount regulating mechanism for conducting regulation to make a supply amount of hot air 6a higher in the second area X1 than that in the first area X2. COPYRIGHT: (C)2007,JPO&INPIT
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