Abstract
The formation process of the air gap at the casting-mold interface and the heat transfer mechanism through the gap were investigated by measuring the displacement of, and the temperature in casting and mold for cylindrical and flat castings of aluminum alloys. The thickness of the air gap was measured as the difference between the location of the casting surface and that of the mold inner surface. For cylindrical castings, the mold began to move outward immediately after pouring, while the casting stayed until solidification progressed to a great extent. For flat castings, the mold began to move greatly toward the casting pushing the casting immediately after pouring and moved reversely after a maximum appeared. It was possible to calculate the displacement of the mold by thermal expansion. It was found that when the thickness of the air gap was not large, the heat through the gap was transferred mainly by heat conduction.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
B. Matuschka:Arch. Eisenhüttenwesen, 1929, vol. 2, pp. 405–13.
I.M. Mackenzie and A. Donaldson:J. Iron and Steel Inst., 1950, vol. 166, pp. 19–28.
L. H.W. Savage and R.T. Flowlar:J. Iron and Steel Inst., 1952, vol. 171, pp. 277–88.
V. Paschkis:AFA Transactions, 1944, vol. 52, pp. 649–70.
R.J. Sarjant and M. R. Slack:J. Iron and Steel Inst., 1954, vol. 177, pp. 428–44.
C.C. Reynolds:AFS Transactions, 1964, vol. 72, pp. 342–47.
G. E. Nereo, R. F. Polich, and M. C. Flemings:AFS Transactions, 1965, vol. 73, pp. 1–13.
S. Suzuki and Y. Nishida:ImonoJ. Japan Found. Soc), 1967, vol. 39, pp. 895–902.
Y. Nishida and S. Suzuki:J. Japan Inst. Met., 1968, vol. 32, pp. 882–86.
Y. Nishida:J. Japan Inst. Met., 1970, vol. 34, pp. 1135–39.
H. Jones:J. Inst. Metals, 1969, vol. 97, pp. 38–43.
R.C. Sun:AFS Cast Metals Res. J., 1970, vol. 6, pp. 105–10.
M. Prates and H. Biloni:Metall. Trans., 1972, vol. 3, pp. 1501–10.
M. Sugiyama, T. Umeda, H. Takeuchi, and H. Kato:Imono, 1974, vol. 46, pp. 820–26.
M. Sugiyama, T. Umeda, H. Takeuchi, and H. Kato:Imono, 1975, vol. 47, pp. 178–83.
H. Takeuchi, T. Umeda, H. Kato, and M. Sugiyama:Imono, 1975, vol. 47, pp. 809–15.
Y. Nishida, M. Isotani, and H. Matsubara:Imono, 1976, vol. 48, pp. 299–305.
G. Ohira, T. Kobayashi, and T. Oide:Imono, 1966, vol. 38, pp. 4–11.
F. Oeters and K. Sardemann:Arch. Eisenhüttenwesen, 1974, vol. 45, pp. 737–43.
S. Engler and G. Schleiting:Giess.-Forsch., 1978, vol. 30, pp. 25–30.
K. Ho and R.D. Pehlke:Metall. Trans. B, 1985, vol. 16B, pp. 585–94.
S. P. Timoshenko and J. N. Goodier:Theory of Elasticity, McGraw-Hill Book Company, New York, NY, 1970, pp. 443–84.
Y. Nishida and H. Matsubara:Brit.Found., 1976, vol. 69, pp. 274–78.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Nishida, Y., Droste, W. & Engler, S. The air-gap formation process at the casting-mold interface and the heat transfer mechanism through the gap. Metall Trans B 17, 833–844 (1986). https://doi.org/10.1007/BF02657147
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02657147