Conference Papers

Permanent URI for this collectionhttps://idr.nitk.ac.in/handle/123456789/28506

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    Shortcomings of Vibrating Screen and Corrective Measures: A Review
    (Springer Nature, 2020) Shanmugam, B.K.; Vardhan, H.; Govinda Raj, M.; Kaza, M.; Sah, R.; Harish, H.
    Screening is a process of separating two or more materials of size ranging from fine to coarse of different shapes, particle sizes and densities. The conventional vibrating screen is widely used in mineral and mining industries for performing sizing operation. This paper will be on the review of the various shortcomings of the conventional vibrating screen. The review was carried out through literature survey and plant visit. The paper also involves the remedial measures to be taken to overcome the shortcomings of the conventional vibrating screen. Some of the corrective measures are reduction in number of components also reduces overall screen load, angular velocities, stress, wear or damages to the screen, screen replacement, downtime and overall cost of production. The circular vibrating motion provided to the screen will give larger amplitude and stroke length of the screen which increases screening efficiency. The overall outcome of remedial action will lead to improved screening efficiency. This paper also provides the idea for the optimization of the vibrating screen design which can reduce the power consumption, friction and also provide high screening output. © 2020, Springer Nature Switzerland AG.
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    Comparison of Wear Behaviour of Al–12.5Si Alloy Reinforced with ZrO2 Using Spray Deposition and Stir Casting Technique
    (Springer Science and Business Media Deutschland GmbH, 2023) Patil, I.S.; Rao, S.S.; Herbert, M.A.
    Aluminium silicon alloy materials are commonly used in aerospace and automotive engineering applications due to their enhanced stiffness, excellent wear resistance and lightweight. The measurement of wear properties for these combinations is very tangled. This can differ under different operating conditions. Dry sliding wear properties of Al–12.5Si with reinforced zirconium oxide matrix composite have been investigated using stir casting and spray deposition methods. The weight fraction of ZrO2 is 15%. The influence of applied nominal load (10 to 60 N) was investigated using the design of experiments. Wear properties of the hybrid composites were studied using pin-on-disc machine. The study found that the wear behaviour was improved by increasing the composition the zirconium oxide in alloy silicon matrix in both stir casting and spray forming techniques. The spray forming method showed lesser wear rate compared with stir casting method. Microstructure of the developed hybrid composites was analysed using scanning electron microscope (SEM). The developed hybrid composite samples have twice the improvement in wear resistance using spray deposition. The influence of reinforced zirconium oxide in aluminium silicon metal matrix on the wear properties using spray forming method is highlighted. This study shows that the wear resistance of the metal matrix composites can be improved by increasing the ZrO2 composition in aluminium silicon matrix. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.