What are the casting characteristics of Shanxi Ma steel pipe fittings?
Release Date：
21 Jun,2023
The casting performance of Masteel is good.Its fluidity (measured by the length of the spiral sample) is better than that of ductile iron and gray cast iron of comparable strength, and it is easy to cast into thin and small castings with clear contours.In addition, the expansion of masteel before shrinkage is greater than that of gray cast iron, so the eutectic expansion force is greater.
The casting performance of Masteel is good.Its fluidity (measured by the length of the spiral sample) is better than that of ductile iron and gray cast iron of comparable strength, and it is easy to cast into thin and small castings with clear contours.In addition, the expansion of masteel before shrinkage is greater than that of gray cast iron, so the eutectic expansion force is greater.The volume shrinkage rate varies depending on the creep rate.The lower the creep rate, the greater the volume shrinkage rate, and the more significant the tendency to shrink holes and shrink loose.Appropriately increasing the pouring temperature and using eutectic carbon equivalent can help eliminate shrinkage defects.Due to the large shrinkage force, the internal stress of malleable steel castings is greater than that of gray cast iron castings.When the creep treatment is improper, the white mouth of masteel tends to be greater than that of gray cast iron and lower than that of ductile iron.The tendency of mouth is related to the selection of creep agent.The use of rare earth-based creep agents is more likely to produce white mouths than the use of magnesium-based creep agents.
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