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4. On the Dimensions of Cast Iron at various Temperatures, with more especial reference to the Phenomena of the Solid floating on the Molten Metal

Published online by Cambridge University Press:  15 September 2014

W. J. Millar
W. J. Millar
Affiliation:
Secretary, Inst. Engineers and Shipbuilders in Scotland.
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Extract

1. In experimenting from time to time on the floating of solid metal on molten metal, the author has observed various phenomena, of which the present paper is descriptive, and this more especially with regard to cast iron and the well-known property of the solid floating on the molten iron as frequently witnessed in foundry ladles.

Some years ago the author made a number of experiments with pieces of cast iron of different shapes and sizes, which were placed on the surface of a large ladleful of molten cast iron, the results obtained being as follows:—

Several pieces of pig iron were first tried; these at first sank and a rush of hot metal took place upwards, but after a few seconds they rose to the surface, and floated with very little of their bulk above the molten metal.

Type
Proceedings 1881-82
Information
Proceedings of the Royal Society of Edinburgh , Volume 11 , 1882 , pp. 549 - 557
Copyright
Copyright © Royal Society of Edinburgh 1882

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References

page 552 note * Trans. Inst. Engineers and Shipbuilders in Scotland, vols. xix. and xxi. Minutes of Proc. Inst. C.E., vol. lviii. part iv.

page 553 note * Prof. Rankine, Manual of Civil Engineering.

page 554 note * From measuring the pattern of these test-bars and the test-bars themselves there appears a difference of ⅜ of an inch in a length of 42 inches, showing a shrinkage of rather less than ⅛ of an inch to the foot.