KNIVES COMPRISING COMPOSITE MATERIALS FOR USE WITH PELLETIZING DIES

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United States of America Patent

APP PUB NO 20150343667A1
SERIAL NO

14291578

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Abstract

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Pelletizing die and knife assemblies that may be used for pelletization of plastic extrudate are disclosed. The knife assemblies may include an extrusion die and a rotary knife hub assembly. The rotary knife hub assembly may comprise a hub having multiple pelletizer cutting knives mounted thereon. Each knife may include a cutting blade insert mounted on a body of the knife. The cutting blade inserts may comprise a composite material having a continuous metal matrix with hard metal carbide particles dispersed therein. The composite material has relatively high hardness and good wear resistance properties, but may have a hardness less than the hardness of the pelletizing die surface in order to reduce wear of the die face.

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Patent Owner(s)

Patent OwnerAddress
KENNAMETAL INC1600 TECHNOLOGY WAY LATROBE PA 15650

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Banerjee, Debangshu Irwin, US 10 28
Robertson, J Denny Bella Vista, US 3 4
Serrano, Hugo Lowell, US 3 8
Zou, Yujiao Fayetteville, US 1 2

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