Mechanical in situ curometer

Details Mechanical in situ curometer Mechanical in situ curometer

1992-07-10

1993-06-22

Heitbrink, Jill L.

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

264 406, 73841, 73843, 425 29, 425155, 425169, B29C 3500

Patent

active

052215008

ABSTRACT:
An in situ curometer has been developed to follow the cure of thick articles during molding, by measuring continuously the dynamic mechanical properties (shear modulus and loss angle). The apparatus is designed to provide cure data on curable articles such as rubber products and components in situ, during the curing of the article, to improve manufacturing cure efficiencies. The curometer is a small-scale version of an Oscillating Disk Rheometer, designed to operate through a mold wall. An approximate theoretical treatment has been developed to relate the observed torque and loss angle to the dynamic properties of the rubber compound.

REFERENCES:
patent: 3494172 (1970-02-01), Juve et al.
patent: 3686933 (1972-08-01), Sokolov et al.
patent: 3718721 (1973-02-01), Gould et al.
patent: 3769830 (1973-11-01), Porter et al.
patent: 3819915 (1974-06-01), Smith
patent: 5158720 (1992-10-01), Levy

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