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Spheroidal graphite cast iron, cast article comprising the same and automotive structural component, and method for producing a cast article comprising spheroidal graphite cast iron
Spheroidal graphite cast iron, cast article comprising the same and automotive structural component, and method for producing a cast article comprising spheroidal graphite cast iron
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机译:球墨铸铁,包括该球墨铸铁和汽车结构部件的铸件以及制造包括球墨铸铁的铸件的方法
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摘要
Of the graphite particles observed in any cross section (at least in 1 mm2), the number of graphite particles with an equivalent circle diameter of 5 μm or more is N (5-) (pieces / mm2), and the graphite particles with an equivalent circle diameter of 5 μm or more and less than 20 μm When the number is N (5-20) (pieces / mm2) and the number of graphite grains with an equivalent circle diameter of 30 μm or more is N (30-) (pieces / mm2), N (5-) ≧ 250, N ( Nodular graphite cast iron characterized by satisfying 5-20) / N (5-) ≧ 0.6 and N (30-) / N (5-) ≦ 0.2.
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机译:在任何横截面(至少1 mm2)中观察到的石墨颗粒中,当量圆直径为5μm或更大的石墨颗粒的数量为N(5-)(个/ mm2),而具有等当量直径的石墨颗粒的数量为N。当量圆直径为5μm以上且小于20μm当数量为N(5-20)(个/ mm2)并且当当量圆直径为30μm以上的石墨晶粒的数量为N(30-) (件/ mm 2),N(5-)≥250,N(特征在于满足5-20的球墨铸铁)/ N(5-)≥0.6,N(30-)/ N(5-)≤0.2。
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