Non-kneeing spinning orifices for spinnerets

Details Non-kneeing spinning orifices for spinnerets Non-kneeing spinning orifices for spinnerets

1975-01-02

1979-03-06

Lake, Roy

Plastic article or earthenware shaping or treating: apparatus

Means providing a shaping orifice

425464, B29F 304

Patent

active

041428501

ABSTRACT:
An essentially non-kneeing spinneret construction for spinning inelastic materials in which each spinning orifice of non-round cross-section is so dimensioned that the coordinates of the centroid of the square of the velocity profile of the extruding material in the plane perpendicular to the axis of the orifice, as determined by ##EQU1## and the coordinates of the centroid of the velocity profile of the extruding material in the plane perpendicular to the axis of the orifice, as determined by ##EQU2## are essentially coincident at each orifice exit so that the flow of the extruding material from the orifice has axisymmetric emergence behavior, where

REFERENCES:
patent: 3640670 (1972-02-01), Paliyenko et al.
patent: 3738789 (1973-06-01), Shemdin

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