Method of molding a plastic wheel

Details Method of molding a plastic wheel Method of molding a plastic wheel

1992-08-06

1993-12-07

Heitbrink, Jill L.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

26432812, B29C 4526

Patent

active

052681394

ABSTRACT:
Methods for molding plastic wheels which are substantially free of lines of weakness in the web thereof adjacent the lug apertures. The methods generally include orienting molding gates in a molding apparatus to a desired circumferential orientation and thereafter injection molding a fiber-reinforced molding composition such that radial orientation of the fibers and/or knit lines in the molding composition, both of which create lines of weakness, are not located in the regions of the web which are radially adjacent the lug apertures.

REFERENCES:
patent: 4072358 (1978-02-01), Ridha
patent: 4511184 (1985-04-01), Schauf et al.
patent: 4540534 (1985-09-01), Grendol
patent: 5112551 (1992-05-01), Hylak et al.

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