Finding New Value in LOST FOAM CASTING

摘要

Research that made the lost foam process a more competitive option than sand casting for steel products is proceeding into a second generation, with more commercial opportunities ahead. Castings Technology International (Cti), is an R&D organization with capabilities in casting design, materials development and selection, specifications, manufacturing technologies, quality control, testing and performance. Several years ago, Cti developed the Replicast process to mitigate the quality and machining problems associated with sand-molded steel castings, and to circumvent the carbon pick-up from the polystyrene pattern in the Lost Foam process that has such a detrimental effect on most cast steel grades. The aspiration was to achieve the high standards of integrity, surface finish and precision of the Lost Wax investment casting process, and for much larger and far heavier castings than can be made with the current Lost Wax technology.