Perfected method of nodular cast iron production from a gray cast iron table (Machine-translation by Google Translate, not legally binding)

摘要

Improved method of producing nodular cast iron from a gray cast iron mass, characterized in that it comprises the phases of adding to the melt a sufficient amount of tellurium to produce a white mass and then graphitizing this mass with magnesium silicon alloy in a proportion equal to a value between 30 and 70 times the equivalent addition of tellurium, said addition being equal tellurium the actual addition of tellurium plus half the sulfur content of the melt, less 0.05 times the content in manganese of said mass, and finally melt said treated mass. (Machine-translation by Google Translate, not legally binding)