New Universal Flaky Flux for Cast Magnesium Alloys

Resumo

The composition and the process of production of the fluxes that are used for melting magnesium alloys are corrected. A universal flaky flux, which is based on domestic raw materials and is being developed in VIAM, is studied. This flux can avoid the disadvantage of a universal commercial VI2 flux, namely, intense dust formation because of a powdered state, which negatively affects the plant atmosphere. The proposed flaky flux can improve the quality of melting Mg–Al–Zn, Mg–Zn–Zr, and Mg–REM–Zr (REM is rare-earth metal) alloys. The results of studying experimental batches of universal flaky flux samples demonstrate that the physicochemical properties of this flux are higher than the domestic analog (VI2 flux) and that this flux promotes the solution of ecological problems.