Nozul tipinin hava atomize aluminyum tozu boyutuna etkisi
Bu çalışmada, Mannesmann ve Laval tipi nozullarla üretilmiş hava atomize alüminyum tozu boyutuna nozul tipinin etkisi araştırılmıştır. Gazi Gaz Atomizasyon Ünitesi'nde gerçekleştirilen çalışmalarda, Laval tipi nozulların, aynı basınçlarda daha yüksek metal/gaz debisi oranına sahip olmalarına rağmen daha ince tozlar ürettikleri tespit edilmiştir. Ayrıca Laval tipi nozulların toz üretim hızını yaklaşık dört kat artırdıkları, gaz tüketiminde de aynı oranlarda bir ekonomi sağladıkları belirlenmiştir. Genellikle iki modlu bir dağılım sergileyen hava atomize alüminyum tozları karmaşık şekilli olup, hücresel-dendritik bir yüzey görünümüne sahiptir.
Effect of nozzle type on the particle size of air atomised aluminium powders
In this study, the effect of nozzle type on the particle size of air atomised aluminium powders, produced by using Mannesmann and Laval nozzles was investigated. Atomisation experiments have been carried out in the Gazi Gas Atomi sation Unit. Although Laval type nozzles had high metal/gas flow rates, they produced finer powders than Mannesmann type nozzles. Furthermore, the powder production rate also increased approximately four times when Laval nozzles were used and the gas consumption decreased the same ratio. Air atomised aluminium powders have bimodal size distribution, irregular shapes and show cellular-dendritic surfaces.
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- ISSN: 1300-1884
- Yayın Aralığı: Yılda 4 Sayı
- Başlangıç: 1986
- Yayıncı: Oğuzhan YILMAZ