Protecting Melted Zinc-Aluminium based Foundry Alloys Against Hydrogen Pick-Up

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The paper is devoted to examinations of the refining efficiency of fluxes and refiners applied during melting of zinc and zinc-aluminium alloys. The content of gases, mainly hydrogen, in the alloys not protected during the charge melting and in the ones protected with the fluxes and/or refined is discussed. The performed examinations show that using the protecting fluxes and melt-refining before pouring leads to significant improvement of ductility in Zn and binary Zn-Al alloys as well as significant increase of the material clearness confirmed by increased density. Furthermore, the metallurgical yields are also increased.

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Archives of Metallurgy and Materials

The Journal of Institute of Metallurgy and Materials Science and Commitee on Metallurgy of Polish Academy of Sciences

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