Surface Combustion, Maumee, Ohio, introduces Surface Depths Calculators, which enable engineers and customers alike to complete quick, accurate calculations from the shop floor.
Case Depth Calculator provides a quick, back-of-the-envelope style estimate of case depth (or time to achieve a case depth) during carburization and carbonitriding by the saturation or boost/diffuse methods. It can also be used to estimate times for carbon restoration. The model is based on work by F.E. Harris.
Carbon Calculator calculates the carbon potential of an atmosphere based on the carbon monoxide level, the carbon dioxide level, and the furnace temperature. These readings may come from instruments such as infrared controllers or three-gas analyzers.
Dewpoint Calculator calculates the carbon potential of an atmosphere based on the dewpoint of the furnace atmosphere, the carbon monoxide (CO) level, the hydrogen (H2) level, and the furnace temperature. These readings may come from instruments such as dewpoint analyzers.
S-1 Oxygen Probe Calculator calculates the carbon potential of an atmosphere based on the millivolt signal from an oxygen probe, the carbon monoxide level, and the furnace temperature. Two types of oxygen probes may be selected: a Surface Combustion S-1 Oxygen Probe or a generic oxygen probe.
Kn Calculator calculates the nitriding potential (Kn) of an atmosphere based on the flows of ammonia, nitrogen, and hydrogen into the furnace, the furnace pressure, and either the reading from the thermal conductivity hydrogen probe of the ammonia dissociation ratio (α) as given by an ammonia burette.
Surface Depths can be found on both the Apple App Store and on Google Play. If you would like more information on how to apply these calculations to your operations or if you have suggestions of other calculators that might be helpful, please email us at [email protected].
