Experimental Research of As-cast High Toughness Ductile Iron for Truck
The quality molten iron of high temperature,low sulfur and low oxidation was obtained by medium frequency induction furnace smelting.The chemical composition of molten iron was designed reasonably.The tundish-cover nodulizing process was conducted by using low rare earth magnesium nodulizing agent FeSiMg6RE2.The inoculation was conducted by using multiple trace compound inoculant with Ba.As-cast high toughness QT450-18 ductile iron was steadily produced.The results show that,the tensile strength of casting body reaches 456.3-500.6 MPa and elongation reaches 18.4％-19.2％.
as-cast high toughness ductile irontundish-coveredlow-Mg-RE nodulizer
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万方数据
维普
