Pelletizing apparatus with lubricated pervious orifice wall

Details Pelletizing apparatus with lubricated pervious orifice wall Pelletizing apparatus with lubricated pervious orifice wall

B - Operations, Transporting

29

B

18/722

B29B 1/02 (1980.01)

Patent

CA 1036305

ABSTRACT OF THE DISCLOSURE Apparatus for extruding thermoplastic material comprising an extrusion die having an extrusion orifice having thermoplastic material conducted thereto, the orifice having a fluid pervious wall. Coolant is supplied under pressure through the pervious wall into contact with the outer surface of the material, part of the coolant evaporating immediately on contacting the outer surface of the liquid and the residue of the coolant remaining liquid to provide lubrication along the inner wall at the orifice to facilitate passage of the material therethrough.

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