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Inoculant is a kind of can promote graphitization, reduce the tendency of white mouth, improve the shape and distribution of graphite, increase the number of eutectic groups, refine the matrix structure, it has a short time (about 5-8 minutes) after the incubation process good effect. It is mainly suitable for general conditions or post-instantaneous gestation in various situations.

The inoculant used in cast iron inoculation treatment has a small amount of addition, which has little effect on the chemical composition of cast iron, and has a great influence on its microstructure. Therefore, it can improve the mechanical properties of gray cast iron and have a significant effect on its phySiCal properties. . Good gestation treatment has the following effects:

◆ Eliminate or reduce the tendency of white mouth;

◆ Avoid excessively cold tissue;

◆Reducing the wall thickness sensitivity of cast iron parts, so that the difference in microstructure between the thin and thick sections of the casting is small, and the hardness difference is also small;

◆ Conducive to eutectic nucleation, so that the number of eutectic groups increased;

◆ The shape of graphite in cast iron is mainly small and evenly distributed type A graphite, thereby improving the mechanical properties of cast iron.

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