1957 Volume 43 Issue 5 Pages 522-527
On account of the special features of charcoal pig iron that was described in the previous report (Tetsu-to-Hagané, Vol. 43, No 4, 1957, p. 444), it is used for producing chilled iron roll. Heretofore such special features have been considered to be owing to the gas contents, and so scarcely investigated with reference to the thermal factors.
Because the author considered that it had reference to the thermal factors, the following experiments which had been hardly tested were carried out:
1) Determination of the heating and the cooling curves in thermal analysis:
2) Determination of the anomaloug specific heat value:
3) Determination of A1 transformation temperature:
4) Determination of thermal conductivities for various pig irons:
5) Determination of specific heat for the boron-treated cast iron:
From the above experiments concerning these factors (the anomalous specific heat, thermal radiation thermal conductivity), there were found distinct difference between the charcoal pig iron and the other pig irons.