Manufacturing dimensionally stable shaped hollow sections from a

Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Shaping by extrusion

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Details

264568, 2642094, 264DIG61, B29D 2304, B29C 1707

Patent

active

045199680

ABSTRACT:
Polyamide plastic fuel lines which are dimensionally stable and resistant to fuels, alcoholic fuels and alcohols as fuels are prepared from aliphatic high molecular weight polyamides. The fuel lines are prepared by extruding a hot melt of the polyamide, sizing through a die having a diameter in excess of the given diameter of the fuel line, cooling the fuel line in a cooling bath, removing the fuel line from the bath and sizing the fuel line adiabatically through a disk having a diameter less than the given diameter.

REFERENCES:
patent: 2661499 (1953-12-01), James, Jr. et al.
patent: 3182108 (1965-04-01), Branscum
patent: 4303771 (1981-12-01), Erk et al.

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