Battenfeld Extrusionstechnik Gmbh

Erwin Schwab

Graziano Parisi

Peter Pander

An extruder is controlled in response to the thickness measurement of the extruded strand. The thickness measuring head is initially given a displacement transverse to the extrusion direction, preferably around the extruded strand and the output signals from the head are integrated to form a mean value around the periphery. A comparison of this mean value with the set point wall thickness value is then utilized to provide continuous correction of the output of the head which is utilized to regulate the extruder operation.

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Meinerzhagen, Germany

Erwin Schwab