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PLASTIFYING SCREW FOR AN EXTRUDER OR A FORCING MACHINE, HAVING A NARROWER THREAD WIDTH IN THE TRANSITION REGION
PLASTIFYING SCREW FOR AN EXTRUDER OR A FORCING MACHINE, HAVING A NARROWER THREAD WIDTH IN THE TRANSITION REGION
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机译:挤出机或锻压机的塑化螺杆,在过渡区域具有窄的螺杆宽度
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摘要
A plasticating screw for an extruder or an extrusion press has a thread change, whereby the volume of the transporting cross-section does not change and thus a pressure increase in the region of the thread is avoided. To this end, in the region wherein a first and a second screw thread of the plasticating screw overlap, the thread width outside the overlapping region is equal to d and the thread width inside the overlapping region is equal to ½ d.
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