Evaluating ceramic-foam and bonded-particle cartridge filtration systems

Abstract

A joint program was set up between VA W Aluminium AG and Foseco in order to establish data on the relative positions of finefoam ceramic filters and, more specifically, to investigate the performance characteristics of bonded-particle, tube-cartridge filter systems. In this article, the results of the first phase of this program detailing findings on the 30 ppi and 50 ppi ceramic-foam filters and a Metaullics 14 tube, 16 grit cartridge filter are presented.

Electromagnetic visualization technique for non-metallic inclusions in a melt

“…The estimate should be considered as a mean value. The concentrations reported in table 3 correspond to a rather clean aluminium melt [21][22][23]; in practice the concentration may be considerably higher. A dirty aluminium melt from a melting furnace may have, on average, about 10 000 inclusions equal to or greater than 15 µm in diameter per kilogram prior to settling in a holding furnace.…”

Performance of Electromagnetic Purification System in Continuous Twin Roll Casting of Aluminum Sheet

“…Nowadays, in-line molten metal treatment systems including degassing and filtration have been widely used to ensure the metallurgical quality of roll casting sheet [3]. Single use of a ceramic foam filter (CFF) or bonded particle filter (BPF) is found to have low and variable inclusion removal efficiency [3,4], leading to the increasing trends to seek new technology, such as staged filtration system [3], bonded-particle tube-cartridge filters [4,5] and electromagnetic filtration [6].…”