Testing and correcting metering accuracy of multihole spinnerets

Details Testing and correcting metering accuracy of multihole spinnerets Testing and correcting metering accuracy of multihole spinnerets

1975-07-07

1977-01-04

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

73 375, 264176F, G01B 1308

Patent

active

040013596

ABSTRACT:
A method and apparatus for off-line testing and correcting the metering accuracy of a split multihole spinneret fed by a single metered stream by determining end to end variations in flow rate and by reworking a number of holes in the lower flow rate side of the split spinneret, calculated by multiplying the average test percent bias of the split spinneret by a predetermined constant, so as to bring end to end variations in flow rate to within a required accuracy.

REFERENCES:
patent: 1674831 (1928-07-01), Levy
patent: 2266566 (1941-12-01), Poole
patent: 2925692 (1960-02-01), Hitchner
patent: 3221546 (1965-12-01), Heath
patent: 3433055 (1969-03-01), Booy et al.
T692,145, Dec. 1968, Cobb et al., 73/3.

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