... ,rail road,engine bed and so on. We can provide OEM service for cement mill and rotary kiln casting parts,marine steel ... tearingNon-uniform cooling rateSurface projectionsErosion of sand mold interiorA crack in the sand moldMold halves shiftThere are no these problems for ... as a hot spot, causes uneven cooling and can result in shrinkage, porosity, or cracking. CornersRound corners to reduce stress ...