Method for plasticizing particulate plastic material

Details Method for plasticizing particulate plastic material Method for plasticizing particulate plastic material

1994-06-14

1996-03-19

Thurlow, Jeffery R.

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

26421121, 26421123, 264310, 264349, 26433121, B29B 746, B29C 4780

Patent

active

055001726

ABSTRACT:
A plasticizing method uses an apparatus (10) including a barrel (12) having a bore (14) therethrough. An auger (24) and a rotor (30) are positioned in the bore, each extending from opposed ends (16, 18) of the barrel (12) and having ends (26, 34) that are substantially flush. The auger (24) conveys particulate plastic material along the bore (14), the plastic being frictionally melted before passing the auger discharge end (26). The rotor (30) is provided to uniformly heat the melted plastic. Auger (24) and rotor (30) each are associated with independent means for rotating (28, 32) and means for controlling the speed of rotation (50, 52). The speed of rotation of the auger (24) controls the flow rate of plastic through the bore, and the speed of rotation of the rotor (30) controls the temperature of the melted plastic.

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