| 摘要 |
PROBLEM TO BE SOLVED: To realize a knife for a pelletizer with excellent wear resistance, hardly generating breakage and chipping and hardly wearing the surface of a die plate. SOLUTION: This knife cuts molten resin extruded from a nozzle hole on a cured surface of the die plate by being mounted on a knife holder arranged to face to the die plate and rotating integrally with the knife holder. In the knife, a diamond-like carbon coating layer is provided on the surface of a knife base material having hardness of Hv 700 to 1,000. COPYRIGHT: (C)2005,JPO&NCIPI
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