| 摘要 |
PROBLEM TO BE SOLVED: To provide a powder compacting die device capable of uniforming heating of a compacting part. SOLUTION: In the powder compacting die device provided with a die 2 for forming the compacting part 6 at the inside, a nonmagnetic die material is used for the outer circumferential part 2S of the die, and a magnetic die material is used for the inner circumferential part 2U of the die having an inner circumferential face 7 for forming the compacting part 6. Further, a low frequency induction heating coil heater 11 is provided around the die 2. The inner circumferential part 2U having the inner circumferential face 7 is heated by the low frequency heating induction coil heater 11, and, on the other hand, the outer circumferential part 2S of the die composed of the magnetic die material on the side of the low frequency heating induction coil heater 11 is not heat-generated, thus the side of the compacting part 6 in the die 2 can be uniformly heated. Further, since the inner circumferential face 7 as the part for forming the compacting part 6 is directly heated by induction heating, temperature control therefor can be easily performed. COPYRIGHT: (C)2007,JPO&INPIT
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