Aircraft Manufacturer Orders Vacuum Carburizing Furnace
The combined hot zone incorporates a combination of 1-inch graphite board with a .090-inch graphite foil facing, backed by four ½-inch layers of graphite felt housed in a 304 stainless steel ring. A large mechanical pump and a booster pump are included for proper vacuum operation. A 300-HP motor and internal heat-exchanger system operating at 10 bar are provided for rapid, high-velocity quenching of the workload. The gas carburizing process, including the injection of hydrogen and acetylene, is accomplished via mass-flow controllers per Solar U.S. Patent 7,514,035B2.