Process and device for producing fibre-reinforced thermoplastics

    公开(公告)号:DE3541533A1

    公开(公告)日:1986-05-28

    申请号:DE3541533

    申请日:1985-11-25

    Applicant: BASF AG

    Abstract: The process and the device for producing fibre-reinforced thermoplastics in an extruder (1) uses metering devices (6) and (7) for maintaining a constant weight ratio between the thermoplastics and fibre material, the fibre material being measured by means of the device (7) constructed as a weighbridge before it is fed into the extruder and the measured value being used as a setpoint value for the metering device (6). In the case of deviations in the setpoint/actual value comparison, which takes place in a control unit (9), the amount of the thermoplastic fed to the extruder is changed correspondingly.

    Process and device for producing fibre-reinforced thermoplastics

    公开(公告)号:DE3541532A1

    公开(公告)日:1986-05-28

    申请号:DE3541532

    申请日:1985-11-25

    Applicant: BASF AG

    Abstract: The process and the device for producing fibre-reinforced thermoplastics in an extruder (1) uses metering devices (6) and (7) for maintaining a constant weight ratio between the thermoplastics and fibre material, the fibre material being measured by means of the device (7) constructed as a weighbridge before it is fed into the extruder and the measured value being compared with a setpoint value. In the case of deviations in this setpoint/actual value comparison, which takes place in a control unit (9), the respective screw speed of the extruder is influenced in such a manner that if the value falls below the setpoint value, the screw speed is correspondingly increased and if the setpoint value is exceeded, the screw speed is correspondingly reduced.

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