Product category:
Mould and die making, machining, CAD/CAM, software
News Release from: Magna Projects and Instruments | Subject: Eta 2100 Capillary Extrusion Rheometer
Edited by the Manufacturingtalk Editorial
Team on 31 January 2003
Rheometer takes the stress out of flow
testing
Capillary extrusion rheometer is a powerful floor-standing instrument designed to measure the flow of materials such as molten plastics to aid die design.
Magna Projects and Instruments' Eta 2100 capillary extrusion rheometer is a powerful floor-standing instrument designed to measure the flow of materials such as molten plastics, doughs, pastes, rubbers, foods, cosmetics, pharmaceuticals, etc, under the duress of conditions likely to be found in processing Models within the range are capable of reaching material pressures as high as 2100 bar (30,000 psi) at temperatures of up to 450degC
This article was originally published on Manufacturingtalk on 10 Dec 2001 at 8.00am (UK)
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Since the viscosity of most materials is not constant but changes with the speed of processing, the Eta 2100 uses a state-of-the-art servo drive system to control the speed of extrusion over a very wide range.
The whole system is computer controlled by Magna's RheoTenax software suite, which has been especially written to be user friendly and provide a wide range of manual and automatic control options, and an advanced analysis and presentation package.
The instrument - a very highly instrumented and controlled piston-driven extrusion machine - is useful for formulation development, materials research, troubleshooting, quality control, generation of data for mould or die design software.
The extruded product may be tested using other techniques in order to link processing behaviour with, for example, mechanical properties.
Accessories are available to measure swelling after extrusion (die swell), viscous heating, effect of hydrostatic pressure on viscosity, etc.
The Eta 2100 is complemented by Magna's benchtop MiniCER capillary rheometers, for applications which do not require the high pressures etc of the Eta 2100.
Magna's products are designed on a modular basis so that modifications to suit specific applications may be made easily and cost-effectively.
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