The Phoenix VFD are
specifically designed to speedily prepare permanent and homogeneous fused
beads under accurately reproducible conditions. The process involves
dissolving samples and mixing them into a borate flux at temperatures
ranging from 600 to 1250°C. The fused borate flux and sample substance
mixture is automatically poured into pre-heated moulds. The moulds are then
retracted over separate cooling jets for precise control of cooling.