Casting Common Defects

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Casting Common Defects A. poured less ( due to cast ) : Liquid Metal is not filled cavity caused by lack of meat metal castings . B. cold traps : There is a gap not fully converged on casting its edges smooth handover . C. scarring ( RPM ) : There are different sizes on the casting surface , irregularly shaped scar sheet strong projection . D. leather folder : Alice tongue casting surface scars block the emergence of local , inter- clip -shaped scar on the block with cast -shell . E. depression : casting surface irregular depressions and grooves stripes . F, toad skin: casting surface localized severe irregularities . G. drum kits : casting surface localized swelling , swelling smooth surface . H. iron thorn : casting surface appears many scattered or dense small thrusting . I. pitting : dense dot -shaped pits on the surface of the casting . J. iron beads: recess or corner of castings have extra smooth metal particles. K. embedded beans : inlay and incomplete fusion and casting metal particles in the casting. L. shrinkage : Internal casting form irregular rough surface holes. M. focus pores : within casting has smooth bright or dark hole . N. porous pores and pinholes : tiny perforations dispersed or concentrated on casting . O. peeling sand ( sand filled ) : casting surface or internal shell is made of refractory or shell , such as filling the holes. Q. slag : casting surface or inside the hole to be filled slag . R. sticky sand : the casting surface of the metal shell and firmly bonded material . Divided two kinds of mechanical and chemical sticky sand . S. thermal cracking : casting surface or internally generated between irregular crystal cracks. T. cold cracking : continuous casting penetrating cracks . hppt:// Email:sales.china@xy-global.com