| 摘要 |
PROBLEM TO BE SOLVED: To realize excellent durability and peeling properties in a tabletting punch or die, and, even if the surface thereof is provided with a coating layer, to surely prevent the peeling of the coating layer. SOLUTION: In the tabletting punch or die for a tablet, a tabletting surface layer 5 comprises a base metal, and additionally comprises a hardening metal(s) different from the base metal, and further, the content of the hardening metal(s) is made high from the base metal toward the tabletting surface layer 5. The hardening metal(s) includes at least one selected from W, C, B, Ti, N and Cr. Further, regarding the tabletting punch or die for a tablet, the Ra (arithmetic average roughness of the surface) in the tabletting surface layer 5 is controlled to 0.1 to 5μm. COPYRIGHT: (C)2007,JPO&INPIT
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