ISSN:
0032-3888
Keywords:
Chemistry
;
Chemical Engineering
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
In the reaction injection molding process, we need to know the evolution of the conversion field with a high level of confidence in order to minimize the mold opening time. Thus, the mold can be opened as soon as there is conversion everywhere in the mold above the value needed for the part to become dimensionally stable. Since conversion can not be determined readily by experimental measurements, and since a thermocouple can provide reliable dynamic temperature data, it is best to predict the conversion field from the solution of a state estimation problem using temperature as the measured variable. Here, we develop an on-line corrective system which uses temperature to correct the model predictions. It is shown that by measuring at the center and at the mold wall, both of which are physically possible, the performance of the corrective algorithm is fairly good.
Additional Material:
6 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/pen.760231607
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