Paper number 1282
|DUST EMISSION AND STRENGTH LOSSES DUE TO HANDLING OF REINFORCEMENT FIBRES|
C.-H. Andersson1,2 B. Christensson3 T. Dartman1,2 and S. Krantz3
1Department of Production and Materials Engineering, Lund University
P.O. Box 118, S-221 00 Lund Sweden
3National Institute of Working Life, S-171 84 Solna, Sweden
2Swedish Institute of Fibre and Polymer Research, P.O. Box 104, S-431 22 Mölndal, Sweden
|Summary||Handling, storage conditions and wear of machinery parts are known to have strong influence on the performance of fibres in manufacturing operations. Methods of simulated handling of fibres and sampling of released dust are presented. A simple rig for handelability testing is presented. For dust sampling, a new sampling chamber working with absolute filtered has been constructed. The design includes two concentric chambers with laminar flow of air in the sampling region and a overpressure laminar air flow mantling around the sampling region in order to avoid contamination from the surrounding air. The stress build up is analysed from the bending radius, the drive belt formula and Herz contact stress relations. Silver steel has been used as a kind of standard. Sharp scratches and corrosion however have strong influence on performance of organic high modulus fibres. Damage is discussed from ductility, brittle modes of fracture and behaviour of surface coatings.
||Keywords|| fibre handling, strength losses, friction, damage, ductile behaviour, brittle behaviour, dust emission, dust sampling.
Theme : Fibres ; Glass and Carbon Fibres
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