抄録
The temperature change patterns were studied for 12 types of pot and pan made from differed materials with different construction and varying bottom thickness. By measuring (1) the temperature distribution from gas heating, (2) the rates of temperature rise and temperature drop during the processes of heating and air cooling, (3) the time for the temperature rise and drop with these processes, and (4) the rate of external temperature rise detected at the heated outside and the difference in temperature between the heated inside and outside surfaces, the temperature change patterns were identified. Strong correlation was found between the rate of temperature change and the thermophysical properties of the main construction materials, although the shape, size, bottom thickness and construction of the pots and pans differed. The pots and pans were classified into three groups by the temperature patterns: (A) aluminum-alloy & copper group, (B) carbon steel &titaniumalloy group, and (C) ceramic group, although the multi-layer types constructed from two materials belonging to different groups were difficult to classify.
