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5 records (took 0.023 seconds)

    1.
    发明专利
    未知

    公开(公告)号：DE2428166A1

    公开(公告)日：1975-01-02

    申请号：DE2428166

    申请日：1974-06-11

    Applicant: TORAY INDUSTRIES

    Inventor： AKATSUKA TAKEAKI ,  KITAGAWA KAUTSUICHI ,  AMO HIROYSHI ,  MITA OSAMU

    IPC: G05D5/02 ,  B29B7/00 ,  B29C47/00 ,  B29C48/31 ,  B29C48/92 ,  G05D5/03 ,  B29D7/00

    Abstract: A method and an apparatus for adjusting the gap between lips of a die for extruding a plastic sheet material. A pair of flat plates spaced from each other have a plurality of bolts for controlling the gap. The operational adjustment of each bolt is generated as an electric signal, and this electric signal is added with reference to all the bolts to distribute the gaps between the die lips. Each adjustment is changed so that the distribution of the gap between the die lips acquires a predetermined form to thereby determine the necessary amount of adjustment of each bolt.

    CAPILLARY VISCOMETER
    2.
    发明专利
    CAPILLARY VISCOMETER 失效

    公开(公告)号：JPS5838838A

    公开(公告)日：1983-03-07

    申请号：JP13679481

    申请日：1981-08-31

    Applicant: TORAY INDUSTRIES

    Inventor： MITA OSAMU

    IPC: G01N11/08 ,  G01N35/00

    Abstract: PURPOSE:To elevate the accuracy by interposing a means of fluidizing a liquid to be inspected, a capillary viscometer adapted to measure the viscosity of the liquid to be inspected according to the pressure on both sides of a tublet and a mass flowmeter capable of measuring mass flow rate and density in a passage of the liquid to be inspected. CONSTITUTION:A tublet 11 is provided in a differential pressure converter 1 with each end communicating to outside thereof 1. Pressure receiving detectors 10 and 10' of a liquid sealed diaphragm type are arranged on the wall surface facing respective ends of the tublet 11. This viscometer is equipped with a viscosity receiver/recorder 8 and a mass flowmeter 2 connected to the tublet 11. A pump 3 is driven to run a liquid to be measured and then, a heat medium is fed into a jacket 17. This enables the measurement of the viscosity of the liquid based on the mass flow rate and the density signal from the mass flowmeter 2 and a differential pressure signal in pressures at both ends of the tublet.

    CAPILLARY VISCOMETER
    4.
    发明专利
    CAPILLARY VISCOMETER 失效

    公开(公告)号：JPS5838837A

    公开(公告)日：1983-03-07

    申请号：JP13679381

    申请日：1981-08-31

    Applicant: TORAY INDUSTRIES

    Inventor： MITA OSAMU

    IPC: G01N11/08

    Abstract: PURPOSE:To enables the measurement of the viscosity of a low viscosity liquid by adjusting the flow rate of a liquid to be inspected at a high accuracy by flow inspecting means according to information signal pertaining to the mass flow rate from a mass flowmeter. CONSTITUTION:A flow controller 6 receives analogue or digital output signals from a mass flowmeter 2 and sends signals to a revolution controller 5 according to the value thereof to adjust the rotation of a motor 4 thereby controlling and maintaining the mass flow rate at a fixed value. Here, the temperature and mass flow rate of a liquid are kept so constant to cause little variation in the density and a constant value is obtained from pir rho/8LW=K'. A differential pressure P1-P2 obtained in a differential pressure converter 7 is sent to a viscosity receiver/recorder 8 and combined with the value K' obtained with the mass flowmeter 2 to form an equation eta=K'(P1-P2) which gives the viscosity of the liquid.

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