High Casting Temperature Research Articles

鑄造の研究(第1報)

Cooling and solidification of sand casting were investigated by measuring the temperature of metal and sand at several points and the cooling effect of sand is discussed. The results are as follows: 1. Dried sand conducts heat of metal by expansion of air involved in it additional to its own conduction. 2. Green sand does the same, but still more by vaporization of moisture and its expansion. 3. Air and moisture in sand convey heat of metal by their expansion without any convection. 4. High casting temperature gains the solidification time and much humidity in sand loses it. 5. Cooling of metal is calculated and an experimental formula of solidification time is introduced.