Rheological measurement apparatus and measurement method with flow rate accurately controlled
A technology of precise control and measurement device, applied in the direction of measurement device, flow control, control/regulation system, etc., it can solve the problems of returning measured materials to production equipment, measuring rheological properties, and inability to accurately control metering flow on-line. Rheological properties, stable measurement values, and measurement-friendly effects
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[0029] like figure 1 shown. The invention discloses a rheological measurement device for precisely controlling the flow rate, which includes a bypass online rheometer, molten polymer supply equipment 1 and a PID automatic control system; the measurement module 10 of the bypass online rheometer passes through a belt The molten polymer channel with the gear pump is connected in parallel with the molten polymer recovery port 1-2 and the molten polymer supply port 1-1 of the molten polymer supply device; on the die head of the measurement module 10, it flows along the molten polymer A second pressure sensor 5 and a third pressure sensor 6 are arranged at intervals in sequence in order to measure the pressure drop formed when the molten polymer passes through the die. The molten polymer supply device 1 is a polymer processing and molding device.
[0030] A first gear pump 2, a first pressure sensor 3 and a second gear pump 4 are sequentially added to the molten polymer supply por...
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