Patent ID: 8388223
Filing Date: 2013-03-05
Classification: F27D,G01K,Y10T

Abstract:
1. A method for making a device for measuring the temperature at various locations in a metal treating furnace that heat-treats a metal part, which comprises the steps of: (a) forming a shaped piece from a mixture of binder and one or more of inorganic or metallic particles; (b) firing said piece at a temperature that chars said binder to form said device of an inorganic, metallic, or inorganic-metallic skeletal structure of a determined shape; and (c) firing said piece at various metal treating temperatures and measuring a physical parameter of said skeletal structure for generating a plot of temperature versus said physical parameter, said device, when placed in said metal treating furnace at various locations and said physical parameter monitored and compared to said plot, determines the furnace temperature at said various locations.