Method and apparatus for the cooling of a tubular extrudate...

Details Method and apparatus for the cooling of a tubular extrudate... Method and apparatus for the cooling of a tubular extrudate...

B - Operations, Transporting

29

D

18/661

B29D 27/00 (1980.01)

Patent

CA 1053873

Abstract of the Disclosure A surface treating device to be attached to the upstream end of a cooling and sizing mandrel used in the manufacture of a web of expanded polystyrene of a general purpose grade from a warm, tubular extrudate or such material, such treating device serving to prepare the dense, radially innermost surface of such tubular extrudate so that it can be drawn over the cooled, cooling and sizing mandrel in tight, surface to surface contact therewith to substantially reduce the amount of material from the web which accumulates on the cooling and sizing mandrel.

294082

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