the characteristics of precision casting steel processing technology

- Feb 03, 2020-

The mechanical properties of cast steel are higher than that of cast iron, but its castability is worse than that of cast iron. Because the melting point of cast steel is high, molten steel is easy to oxidize, the fluidity of molten steel is poor, and the shrinkage is large. Its body shrinkage is 10 to 14% and linear shrinkage is 1.8 to 2.5%. In order to prevent casting defects such as insufficient pouring, cold insulation, shrinkage and shrinkage, cracks and sticky sand, it is necessary to take more complicated technological measures than cast iron.