퓨란 사형 주조 후육단면 C. V. 흑연주철의 기계적 성질에 미치는 합금원소의 영향

Effect of Alloying Element on the Mechanical Properties of Thick Section Compacted Vermicular Graphite Cast Iron Poured Into Furan-Bonded Sand Mold

The effect of alloying on the mechanical properties of compacted vermicular graphite cast iron poured into a furan–bonded sand mold was investigated. The mechanical properties decreased with thickness and increased with the increase in residual magnesium content. The properties were also observed to decrease with increase in the amount of added sulfur. Although there was no big difference when a different nodularizer was used, the variation rate of nodularity with thickness was lowest for CievloyTM. The strength and hardness increased, whereas the elongation decreased with increased amount of added copper.