Economically cheap: reduce white mouth in tissue, improve tissue uniformity in cross-section, promote A-type graphite, increase the number of eutectic groups, reduce segregation; Performance increases strength and toughness.

The amount of use should be determined according to the actual situation, and the relationship with the primary iron and the molten iron is very large, and should be adjusted according to the actual situation.

In general, the amount of gray cast iron silicon particles added is 0.2 to 0.5%; For ductile iron, the amount of silicon particles is generally 0.5 to 1.1%; For cast iron horizontal continuous casting of ductile iron, the amount of silicon particles is generally 0.8 to 1.5%.

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The above are some suggestions from Kangxin International Metallurgy, I hope to help you!