鑄鋼用珪石の熱傳導度について

概要

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To study thermal properties of molding sand for steel castings, the following experiments and calculations were performed. The thermal conductivities of silica sand of various grain sizes and appar nt densities were measured at various temperatures up to 1000℃. Assuming a sand grain to be a cube having a projection part, a formula was gained which represented an apparent thermal conductivity of silica sand and contains terms of grain size, temperature and apparent density as variables. This formula, also, contained the 'contact factor', that had to be assumed as to make proximate the calculated value to the measured one. The contact factor seemed to increase at a high temperature, and perhaps it was due to the partial sintering of sand. The thermal conductivities up to 1400℃ were calculated by a formula.
社団法人日本鉄鋼協会の論文
1953-11-25