Ductile cast iron
    1.
    发明授权
    Ductile cast iron 失效
    球墨铸铁

    公开(公告)号:US4450019A

    公开(公告)日:1984-05-22

    申请号:US480572

    申请日:1983-03-30

    IPC分类号: C22C37/10

    CPC分类号: C22C37/10

    摘要: A ductile cast iron excellent in resistance to both oxidation at high temperatures and thermal fatigue, comprising C: 2.5 to 3.8 wt %, Si: 3.5 to 4.8 wt %, Mn: up to 1.0 wt %, P: up to 0.1 wt %, S: up to 0.1 wt %, Mo: 0.5 to 2.0 wt %, Mg: 0.03 to 0.1 wt %, at least one of Ce and La: 0.02 to 0.5 wt %, and Fe.

    摘要翻译: 包括C:2.5〜3.8重量%,Si:3.5〜4.8重量%,Mn:1.0重量%以下,P:0.1重量%以下的耐高温氧化性和热疲劳性优良的球墨铸铁, S:0.1重量%以下,Mo:0.5〜2.0重量%,Mg:0.03〜0.1重量%,Ce和La中的至少一种:0.02〜0.5重量%。

    Method for making pitting resistant cast iron product
    2.
    发明授权
    Method for making pitting resistant cast iron product 失效
    耐点蚀铸铁制品的制造方法

    公开(公告)号:US4482396A

    公开(公告)日:1984-11-13

    申请号:US526531

    申请日:1983-08-25

    IPC分类号: C21D5/00 C22C37/10

    CPC分类号: C21D5/00 C22C37/10

    摘要: A method for making a cast iron product having a high resistance to both wear and pitting. The method comprises casting a cast iron containing C, Si, Mn, Cu, Ni, Cr and Mo with or without P and S to provide a casting having a local chilled structure having a cementite content of 30 to 50%. The casting is then annealed at a reduced temperature and subsequently subjected to a quenching treatment. The quenching treatment is carried out by heating the casting under a particular condition including heating temperature and time and then quenching it. The product is finally tempered.

    摘要翻译: 一种制造具有高耐磨性和点蚀性的铸铁制品的方法。 该方法包括将含有或不含P和S的C,Si,Mn,Cu,Ni,Cr和Mo的铸铁铸造成具有渗碳体含量为30-50%的局部冷却结构的铸件。 然后将铸件在降低的温度下退火,随后进行淬火处理。 淬火处理通过在包括加热温度和时间的特定条件下加热铸件,然后淬火来进行。 该产品终于回火了。