What is the casting characteristics of Shanxi Masteel pipe fittings?
Release time:
12 May,2023
The casting performance of Marsteel is good. Its fluidity (measured by the length of the spiral specimen) is better than that of ductile iron and gray iron of comparable strength, and it is easy to pour into thin small castings with clear contours.
The casting performance of Marsteel is good. Its fluidity (measured by the length of the spiral specimen) is better than that of ductile iron and gray iron of comparable strength, and it is easy to pour into thin small castings with clear contours. In addition, the expansion of the steel before shrinkage is greater than that of gray cast iron, so the eutectic expansion force is greater. The volume shrinkage rate varies with the vermiculation rate. The lower the vermiculation rate is, the larger the volume shrinkage rate is, and the more significant the tendency of forming shrinkage cavity and shrinkage porosity is. The appropriate increase of pouring temperature and the use of eutectic carbon equivalent can help to eliminate the shrinkage defects. Due to the large shrinkage, the internal stress of malsteel castings is greater than that of gray iron castings. When the vermicular treatment is improper, the white mouth tendency of Masteel is greater than that of gray cast iron and lower than that of ductile iron. The oral tendency is related to the selection of peristaltic agents. The use of rare earth-based peristalsis agents is more likely to produce white mouth than the use of magnesium-based peristalsis agents.
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Shanxi Fuxingtong Heavy Ring Forging Co., Ltd.