METHOD AND APPARATUS OF BEARING LITHIUM ALUMINUM ALLOY PRODUCTION Russian patent published in 1997 - IPC

FIELD: alloy production. SUBSTANCE: process is realized using two-stage heating in graphite-chamotte crucible of induction vacuum furnace, that has cooled pusher with drive of reciprocation along axes of crucible. At first stage calculated amount of aluminum is smelted and using pusher covering walls of crucible cylinder is formed out of smelt. At second stage calculated amount of metallic lithium is loaded in cavity of formed aluminum cylinder, both components are alloyed and produced alloy is cast over intermetallic compound LiAl smelting point. Method and apparatus allow to avoid contact of lithium with crucible material before its transfer in intermetallic compound, that provides high purity of alloy and crucible safety against chemical destruction. EFFECT: high of alloy and crucible safety. 2 cl, 1 tbl