Shrinkage behaviour of spheroidal graphite cast iron in green and dry sand molds for the benchmarking of solidification simulation

Abstract

Abstract: The effects of metallurgical and processing parameters on the formation of shrinkage cavities and porosities in spheroidal graphite cast iron have been studied, considering the parameters of carbon equivalent, inoculation, casting modulus, mold type (green or dry) and pouring temperature within specific ranges of these variables. Based on the orthogonal experiments, the metallurgical and processing parameters of the minimum casting shrinkage and the maximum casting shrinkage were obtained, and the effects of metallurgical and processing parameters on the formation of shrinkage cavities and porosities in spheroids graphite cast iron castings were discussed. Finally, two regression equations relating these variables to the formation of shrinkage porosity were derived based upon the orthogonal experiments conducted.

Key words:

Wenzhen LI, Baicheng LIU, Jiarong LI. Shrinkage behaviour of spheroidal graphite cast iron in green and dry sand molds for the benchmarking of solidification simulation[J]. J Mater Sci Technol, 2001, 17(06): 610-614.

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Shrinkage behaviour of spheroidal graphite cast iron in green and dry sand molds for the benchmarking of solidification simulation

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