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New Method and Device to Fast Measure Surface Tension of the Melt and Its Applications in Foundry

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Abstract

A new method for fast measuring the surface tension of the melt has been brought forward. The surface tension can be fast calculated by parameters such as the number of bubbles in the fixed time, the pressure difference in bubbles, the capillary diameter, and the temperature of the melt. According to this method, a new device has been developed to measure the surface tension of the melt in 5 seconds. Theoretical analysis has shown that the modification effect, the mold filling capacity, and the graphite shape can be forecast by the surface tension of the melt. Through numerous experiments and statistical analysis, the criteria of fast forecasting the modification effect, the mold filling capacity, and the graphite shape by the surface tension have been obtained. Depending on the criteria, these three parameters can be forecast instantly if the surface tension of the melt is measured.

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Acknowledgment

The authors acknowledge the support of the National Natural Science Foundation of China (Grant No. 50174023).

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Authors and Affiliations

  1. Department of Material Science and Engineering, Harbin University of Science and Technology, Harbin, Heilongjiang, 150040, People’s Republic of China

    Dequan Shi (Doctor), Dayong Li (Professor) & Guili Gao (Doctoral Student)

Authors
  1. Dequan Shi
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  2. Dayong Li
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  3. Guili Gao
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Corresponding author

Correspondence to Dequan Shi.

Additional information

Manuscript submitted July 21, 2007.

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Shi, D., Li, D. & Gao, G. New Method and Device to Fast Measure Surface Tension of the Melt and Its Applications in Foundry. Metall Mater Trans B 39, 46–55 (2008). https://doi.org/10.1007/s11663-007-9119-1

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  • DOI: https://doi.org/10.1007/s11663-007-9119-1

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