Twin-Screw Extruders: A Basic UnderstandingMost books on plastics machinery include a preamble on the origin of such equipment, and some even discuss the origin of plastic itself, dating back to the early 1900s and such men as Leo Baekeland - the real founder of synthetic plastics. There seems therefore, little pur pose in reiterating what has been said before and going over the same ground so adequately covered in a number of books as well as the trade press. We are indebted to the author of this excellent treatise on twin-screw extruders for getting right down to the business at hand. The author makes mention of two pioneers - Roberto Colombo and Carlo Pasquetti - who were the first to develop twin-screw ex truders. It was my good fortune to follow the work of these pioneers, and, interestingly enough, the principles were so good that their work continues to be relevant even to the advanced and more sophisticated models so well defmed in this book. |
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Contents
SINGLESCREW EXTRUDERS | 1 |
COUNTERROTATING EXTRUDERS | 45 |
COROTATING SCREWS | 61 |
Copyright | |
5 other sections not shown
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Common terms and phrases
according action actual affect amount angle approximately average barrel basic bearings better bottom calculated capacity channels clearance close configuration conjugated cooling corotating corotating screws counterrotating screws create decreases depends developed diameter direction energy equal equivalent feed flanks flight tip flights flow frictional function given heat heater higher important increase intermeshing Italy larger length less limits lower machines material maximum measured mechanical melt mixing motor move needed occurs opening operation output particles passages pitch plastics positive possible pressure production profiles pumping section push ratio reach reduced remain residence rotating screw extruders screw speed seen separate shaft shape shear shows single-screw extruders smaller specific speed surface Table temperature tion turn twin twin-screw extruders usually various venting viscosity volume width zone
References to this book
Bibliographic information
| Title | Twin-Screw Extruders: A Basic Understanding |
| Author | F. Martelli |
| Publisher | Springer US, 1983 |
| Original from | the University of Michigan |
| Digitized | 17 Dec 2007 |
| ISBN | 0442263635, 9780442263638 |
| Length | 137 pages |
| Export Citation | BiBTeX EndNote RefMan |