Abstract
The physical properties of bulk wool compressed to high density are largely unknown. Improved knowledge mayassist in prediction of variables such as force and displacement during compression. An experimental multi-axial press wasdeveloped to allow investigation of these properties for application to the wool dumping industry. The press had a 170 tonnemain axial ram, a multi-axial moveable-wall pressing chamber of 150 tonne capacity, instrumentation to measure wall forcesand displacements, and a PC/PLC-based control system. Tests were done to investigate wools pressing characteristics,including pressure-density relationships and chamber wall forces. Wools compression characteristics were found to be highlynonlinear. Lubrication was found to significantly reduce wall friction forces. A tensile failure occurred in the wool duringa test when the side-platens were free to move. The results may find application in the design of high-capacity wool dumpingpresses.
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