Device for measuring melt flow index

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364473, 364476, 364510, 364477, 374 54, 264 406, 73 53, G06F 1546, B29H 502

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active

049338862

ABSTRACT:
A melt flow index measurement device includes a sample enclosure (125), a loading device (90) for applying a sample under pressure to the enclosure, a pressure sensor (112) for determining the pressure within the enclosure upstream of the restriction, an output port (130) in the enclosure downstream of the restriction, and a temperature control (91, 92, 76) and monitoring system for determining the sample temperature within the enclosure. A data processor computes the melt flow index from successive measurements of pressure and flow rate through the output orifice or restriction under operating conditions, and derives from those computations the melt flow index of a sample under a predetermined set of standard conditions.

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"Application of Microprocessors in Devices for Instrumentation and Control", A Process Analyser with a Versatile Microcomputer Control and Readout System, 1980, IMEKO Conference, pp. 211-231.

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