Abstract: A plastics processing machine is associated with an internal mixer. Thermoplastic material is separately melted in the plastics processing machine and injected into the mixing chamber of the internal mixer, where it is mixed with fillers, caoutchouc or the like.

Abstract: For the measurement of the visco-elastic properties of a polymer material (69), such as plastics or rubber, a measuring wedge (47) is pressed into a rolled sheet (25) located on a work roll (5) of a mixing mill and conclusions are drawn from the applying forces and from the penetration depth of the measuring wedge onto the visco-elastic properties of the material (69).

Abstract: In a method for measuring the temperature of the mix in a mixing chamber of a kneader, the temperature of the mix being continuously measured by means of at least one sensor projecting into the mixing chamber, for the purpose of correcting measuring errors due to the heat conductivity of the sensor housing, a second sensor, in particular in the form of an infra-red sensor, is provided and directly detects the temperature of the mix at certain discrete times during the mixing process, the continuous temperature measuring of the first sensor being corrected according to the measuring of the second sensor when the mixing process is continued.