Al alloy air-tight seal for glass and - liquid tanks

摘要

The alloy compn. comprises 0.5-1.5 wt.% Si, 0.5-1.5 Fe, 0.2-1.0% Mg, 0.05-0.5% Cr, 0.05-0.1% Cu, balance Al of 99.5% purity, according to spec. DIN 1712. Prefd. alloy compsn. is 0.75% Si, 0.75% Fe, 0.5% Mg, 0.25% Cr with 0.05-0.1% Cu, balance Al. The seals are capable of withstanding applied pressure of 6-12 atmos.