Wear processes and performance of blade pair in small-scale single-shaft plastic shredder machine |
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| Authors: | J H Wong W M J Karen S A Bahrin B L Chua G J H Melvin N J Siambun |
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| Affiliation: | 1. Faculty of Engineering, Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Sabah, Malaysia;2. Mechanical Engineering Department, Politeknik Kota Kinabalu, Jalan Politeknik, Kota Kinabalu Industrial Park, 88460 Kota Kinabalu, Sabah, Malaysia;3. Centre of Research in Energy and Advanced Materials, Faculty of Engineering, Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Sabah, Malaysia |
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| Abstract: | Shredder blades and fixed blades were used as a set of blade pair to perform the shredding action. Comparable research was performed on the blade pair to understand its wear mechanism and shredding performance. The loading distribution along the two-edge shredder blades in helix configuration was identified. Optical microscopy, scanning electron microscopy, energy dispersive x-ray, x-ray diffractometer analysis, and hardness tests were used to characterise the surface, elemental composition, microstructure, and hardness of the worn blade pair. The shredder blades’ wear mechanism was categorised as progressive wear which dominant by abrasive, following by adhesive and oxidation wear. The shredding efficiency of the two-edge shredder blades in helix configuration was 69.24 %, recycling efficiency at 96.83 % and retention of 3.17 % after the shredding process. |
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| Keywords: | blade pair progressive wear recycling efficiency shredding efficiency wear mechanism Messerpaar progressiver Verschleiß Recyclingeffizienz Verschleißmechanismus Zerkleinerungseffizienz |
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