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Clogging and lump f...
Clogging and lump formation during atmospheric plasma spraying with powder injection downstream the plasma gun
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- Choquet, Isabelle, 1965- (författare)
- Högskolan Väst,Avd för tillverkningsprocesser
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- Björklund, Stefan, 1969- (författare)
- Högskolan Väst,Avd för tillverkningsprocesser
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- Johansson, Jimmy (författare)
- Volvo Aero Corporation, Trollhättan
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- Wigren, Jan (författare)
- Volvo Aero Corporation, Trollhättan
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(creator_code:org_t)
- 2007-09-26
- 2007
- Engelska.
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Ingår i: Journal of thermal spray technology (Print). - : Springer Science and Business Media LLC. - 1059-9630 .- 1544-1016. ; 16:4, s. 512-523
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- This study aimed to numerically and experimentally investigate lump formation during atmospheric plasma spraying with powder injection downstream the plasma gun exit. A first set of investigations was focused on the location and orientation of the powder port injector. It turned out impossible to keep the coating quality while avoiding lumps by simply moving the powder injector. A new geometry of the powder port ring holder was designed and optimized to prevent nozzle clogging, and lump formation using a gas screen. This solution was successfully tested for applications with Ni-5wt.%Al and ZrO2-7wt.%Y2O3 powders used in production. The possible secondary effect of plasma jet shrouding by the gas screen, and its consequence on powder particles prior to impact was also studied.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Tillförlitlighets- och kvalitetsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Reliability and Maintenance (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
Nyckelord
- influence of spray parameters
- shrouded spraying
- spray deposition
- Construction engineering
- Konstruktionsteknik
- Metallurgical process and manufacturing engineering
- Metallurgisk process- och produktionsteknik
- Manufacturing and materials engineering
- Produktions- och materialteknik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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