The use of mathematical model of hardness spread in the research on the property of cast-iron molds

Abstract

The paper determines the range and form of a surface layer of a spheroid cast iron founding. It presents proofs of the possibility to form an operative surface of a product in the range of an intermediate surface layer of the cast. Based on research and experience, one has stated that the hardness spread and structures in cross sections of the wall of a cast are the most representative parameters determining the range of the surface layer of the iron cast.

Keywords

• foundry
• cast-iron molds
• hardness
• surface layer