MFCs for Gas Control in Case Hardening Processes
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چکیده
Surface hardening is a high temperature process that creates hard surface alloy layers that improve a metal’s wear resistance. The technique has been used for many years, however, precise control of the surface alloy composition is difficult since accurate control of the gas chemistry is challenging in these processes, which in turn makes it difficult to control the composition of the surface alloy. Poor control leads to high part rejection rates, inefficient use of furnace operating time, and higher than necessary ambient gas costs.
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