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Aluminum-Manufacturing Methods
Published in Raghu Echempati, Primer on Automotive Lightweighting Technologies, 2021
An advantage of lost foam casting is that there are no parting lines, cores, or risers enabling less secondary processes. The polystyrene used for the foam patterns is cheap. Additionally, intricate and complex shapes with excellent surface finish can be realized in the cast. As mentioned above, a limitation for this process is that the die for shaping the polystyrene is expensive and highly specialized. Lastly, the foam patterns can be easily damaged due to the low strength of polystyrene.
Heterogeneous Catalytic Ozonation for Water Treatment: Preparation and Application of Catalyst
Published in Ozone: Science & Engineering, 2023
Zekun Yang, Haitao Yang, Yong Liu, Chaoquan Hu, Hailong Jing, Hongtao Li
Peng et al. prepared Ni/Al2O3 catalyst by EPC method (Peng et al.,2018). The performance of the Ni/Al2O3 catalyst made by the lost foam approach and the classic impregnation–calcination approach was compared. The results revealed that nickel oxide is evenly formed on the surface of the Al2O3 when Ni/Al2O3 is made using the lost foam method. Furthermore, Ni/Al2O3 created by lost foam casting has a greater specific surface area, greater pore volume, and narrower pore size dispersion than Ni/Al2O3 created using integrated circuits. Under conditions of calcination temperature of 200 °C, initial pH = 8.0, and catalyst dosage of 2.5 g·L−1, Ni/Al2O3-EPC has the best catalytic ozone removal of salicylic acid activity and stability.
Processing of Al/Cu bimetal via a novel compound casting method
Published in Materials and Manufacturing Processes, 2019
Wenming Jiang, Feng Guan, Guangyu Li, Haixiao Jiang, Junwen Zhu, Zitian Fan
A number of approaches including compound casting[5–7], welding[8,9], extrusion[10,11], and rolling[12,13] are developed to manufacture the Al/Cu bimetal. It is noted that the compound casting process is an attractive method to prepare the Al/Cu bimetal with a complex shape, and it can produce the complex Al/Cu bimetal using a simple procedure and a low cost compared to other methods.[14] Nevertheless, the welding, extrusion as well as rolling methods are difficult to processing the Al/Cu bimetal with complex shape, and their cost is high. In general, the compound casting process may adopt many casting methods, such as sand casting[15], permanent mold casting[16], die casting[17], and lost foam casting (LFC).[18]