THE FORMATION OF PINHOLES BY REACTION BETWEEN LAMELLAR GRAPHITE CAST IRON AND GREEN SAND (PART TWO)

摘要

The new test campaign reported in this article concerns the influence on pinhole formation of several factors: the aluminium content of the cast iron (0.005 to 0.35%), the level of seacoal in the sand (0 to 6%), the casting temperature (1380 to 1340 ℃) and the manner of filling of the cavities, for the case of a cluster of six discs, 6 and 10mm thick, cast horizontally in green sand moulds.