OPTIMIZATION STUDY OF THE OPERATING CONDITIONS TO IMPROVE THE QUALITY OF SURFACES COATING OBTAINED BY PLASMA SPRAYING PROCESS
| Autor: | A. Hleli, R. Djebali, A. Lamari, B. Pateyron, Abbassi |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Fluid Flow and Transfer Processes
Materials science Plasma Spraying Thin Coatings Deposit quality Sommerfeld Number Taguchi Experimental Design business.industry 020209 energy media_common.quotation_subject Process (computing) Energy Engineering and Power Technology 02 engineering and technology Building and Construction Plasma engineering.material Coating 0202 electrical engineering electronic engineering information engineering engineering Quality (business) Process engineering business media_common |
| Zdroj: | Volume: 3, Issue: 4 1411-1418 Journal of Thermal Engineering |
| ISSN: | 2148-7847 |
| Popis: | In the present paper we aim to present a numerical optimizing studyon the operating conditions of an atmospheric plasma spraying process. Thefocus is mainly made on the powder injection parameters and the objective is toimprove the quality of surface coatings.First, a ‘validation’ test of the Jets&Poudres code isconducted based on various numerical and experimental former works. The resultsof the Jets&Poudres code seem to be a good compromise between theresults of different numerical methods and the experimental measurements.Second, a Taguchi experimental design is conducted to explore theinfluence parts for five operating parameters in the spraying process. This,results in a primary gas flow rate of45 SL/min, a spray distance of 12 cm, a particle sizearound 55μm, a powder feedrate ranging close to 1 l/min and finally an electric power of about 25 kW.Finally, a test case for a ternary gas mixture is conducted on 15000particles using the Jets&Poudres code to assess the conclusionsdrawn in the studies using the experimental design. The results are confrontedtogether and discussed. |
| Databáze: | OpenAIRE |
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