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| Abstract No.: |
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| Title: |
Process optimization of dry-ice blasting and its application in thermal spray
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| Authors: |
Shujuan Dong / IRTES-LERMPS,Université de Technologie de Belfort-Montbéliard, FRANCE
Bernard Hansz / HMRexpert, France
Hanlin Liao/ LERMPS-Université de Technologie de Belfort-Montbéliard, France
Christian Coddet/ LERMPS-Université de Technologie de Belfort-Montbéliard, France
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| Abstract: |
Dry-ice blasting as an environmental-friendly method is introduced and applied in the field of thermal spray. This process contributes to the decrease of porosity and oxide of the coating and to the increase of deposition efficiency. Considering dry-ice pellets are carried and accelerated by compressed air through convergent-divergent nozzle, the computational fluid dynamic (CFD) approach is firstly employed in this study to evaluate the effects of nozzle geometry, accelerating gas conditions as well as properties of pellets, on the pellet velocity variation and further optimize the process. The relative experiments have been subsequently carried out for thermal spray process with different materials.
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