FLAKE GRAPHITE CAST IRON PRODUCT AND METHOD FOR PRODUCING THE SAME

To provide a flake graphite cast iron product having uniformity in hardness/structure while maintaining required hardness.SOLUTION: A flaky graphite cast iron product according to the present disclosure has a composition comprising, by mass, 2.9 to 3.2% C, 1.1 to 1.5% Si, 0.7 to 1.1% Mn, 0.1 to 0.2%...

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Bibliographische Detailangaben
Hauptverfasser:	SUGIYAMA NAOKI, FUJIMOTO RYOSUKE
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ALLOYS CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY METALLURGY OF IRON PERFORMING OPERATIONS POWDER METALLURGY PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL TRANSPORTING TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	To provide a flake graphite cast iron product having uniformity in hardness/structure while maintaining required hardness.SOLUTION: A flaky graphite cast iron product according to the present disclosure has a composition comprising, by mass, 2.9 to 3.2% C, 1.1 to 1.5% Si, 0.7 to 1.1% Mn, 0.1 to 0.2% Cr, 0.06 to 0.10% Sn, 0.01 to 0.03% S, 0.4 to 0.8% Cu, and the balance Fe with inevitable impurities, and further satisfying CE: 3.3 to 3.6 and CE≤-0.33×Si+4.26. CE is a carbon equivalent obtained by CE=C content (mass%)+1/3×Si content (mass%).SELECTED DRAWING: None 【課題】必要な硬さを維持しつつ、硬さ／組織の均一性が高い片状黒鉛鋳鉄製品を得る。【解決手段】本開示に係る片状黒鉛鋳鉄製品は、質量％で、Ｃ：２．９～３．２％；Ｓｉ：１．１～１．５％；Ｍｎ：０．７～１．１％；Ｃｒ：０．１～０．２％；Ｓｎ：０．０６～０．１０％；Ｓ：０．０１～０．０３％；Ｃｕ：０．４～０．８％；を含むとともに残部Ｆｅおよび不可避的不純物からなり、さらに、ＣＥ：３．３～３．６であり、かつ、ＣＥ≦－０．３３×Ｓｉ＋４．２６を満足する。ＣＥは、式：ＣＥ＝Ｃ含有量（質量％）＋１／３×Ｓｉ含有量（質量％）により求められる炭素当量である。【選択図】なし