Uses Of Aluminium Foil
The control of chemical composition is very important. In the subsequent heat treatment process, these metastable phases will gradually transform into equilibrium phases. The main equilibrium phases are: α phase (AlFeSi), β phase (AlFeSi) and θ phase (Al3Fe). The composition ratio and conversion rate of these equilibrium phases are mainly affected by changes in the Fe/Si ratio: when the Fe/Si ratio is greater than 3, the Fe/Si ratio increases, and the α phase increases; when the Fe/Si ratio reaches 5, Fe/Si As the ratio of /Si /Si increases, the θ phase increases.
Melt purity: The inclusions in the aluminum melt are mainly various metals, non-metallic inclusions and hydrogen. Common non-metallic inclusions include Al2O3, grain refiner, refiner, etc. The size of the general inclusions is controlled below 5μm. By using STAS refining and holding furnace to stand still, combined with online SNIF rotary jet refining gas, online CFF plate and PTF tubular filtration, the hydrogen content and slag content can be stably controlled within the allowable range to ensure purity. melt
Grain refinement can bring high strength and high elongation to aluminum alloy at the same time, but the refiner acts as a large number of heterogeneous nuclei in the solidification process of aluminum alloy, such as TiB2, TiC, AlB2, etc., which often have a higher melting point and Hardness, the larger size of the refined particles remain in the aluminum alloy, how can it cause hole problems when rolled to the thickness of the aluminum foil. Therefore, it is necessary to choose a high-quality grain refiner with uniform particle dispersion and no large agglomeration. Combined with online CFF and PTF filtration, individual large and fine particles are filtered out, and there will be no holes caused by TiB2 residues.
Aluminium Foil Price Per Roll Aluminum foil can be used for heat insulation in high temperature environments, mainly to block high temperature radiation
