Refractory and Core Removal Process.The Kastech Cleaning Processes were developed by Kolene Corp. to remove refractory refractory Material that is not deformed or damaged by high temperatures, used to make crucibles, incinerators, insulation, and furnaces, particularly metallurgical furnaces. and cores from difficult-to-clean castings. The Ultra process features a salt bath operating from 8501300F (454-704C) that removes low-silica and low-reactivity ceramic compositions and leaches fused quartz fused quartz n. See quartz glass. and pre-formed coring from intricate castings. The wide temperature range allows the process to be used to clean ferrous ferrous (fĕr`əs), iron in the +2 valence state. Containing or having to do with iron. The difference between ferrous and ferric is the number of valence electrons they contain (ferrous contains two and ferric contains three), which metals, stainless steel stainless steel: see steel. stainless steel Any of a family of alloy steels usually containing 10–30% chromium. The presence of chromium, together with low carbon content, gives remarkable resistance to corrosion and heat. , superalloys and "red" metals without attacking the substrate material. A single immersion cycle cleans most castings and is used for castings that must meet MIL specifications. Other application-specific casting cleaning processes include Basic, a moderate load batch cleaning process; and Ceram-X, a mid-range process that replaces mechanical cleaning methods. |
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