HEAVY AUSTEMPERED DUCTILE IRON COMPONENTS
    5.
    发明申请
    HEAVY AUSTEMPERED DUCTILE IRON COMPONENTS 审中-公开
    重型铝质组件

    公开(公告)号:US20110017364A1

    公开(公告)日:2011-01-27

    申请号:US12507885

    申请日:2009-07-23

    Abstract: A component for wind turbines includes cast austempered ductile iron containing about 3.0 to about 3.8 weight percent carbon, about 1.9 to about 2.8 weight percent silicon, up to about 0.3 weight percent manganese, up to about 0.8 weight percent copper, up to about 2.0 weight percent nickel, up to about 0.3 weight percent molybdenum, about 0.03 to about 0.06 weight percent magnesium, less than about 0.05 weight percent chromium, less than about 0.02 weight percent vanadium, and less than about 0.01 weight percent sulfur. The component is preferably a drive shaft or gearbox component having a mass of more than about 3 tons. A method of manufacturing the component is also provided.

    Abstract translation: 用于风力涡轮机的组件包括铸铁奥氏体球墨铸铁,其含有约3.0至约3.8重量%的碳,约1.9至约2.8重量%的硅,至多约0.3重量%的锰,至多约0.8重量%的铜,至多约2.0重量% 的镍,至多约0.3重量%的钼,约0.03至约0.06重量%的镁,小于约0.05重量%的铬,小于约0.02重量%的钒和小于约0.01重量%的硫。 该部件优选地是具有大于约3吨的质量的驱动轴或齿轮箱部件。 还提供了一种制造该部件的方法。

    METHOD OF PRODUCING LARGE COMPONENTS FROM AUSTEMPERED DUCTILE IRON ALLOYS
    6.
    发明申请
    METHOD OF PRODUCING LARGE COMPONENTS FROM AUSTEMPERED DUCTILE IRON ALLOYS 审中-公开
    从铝合金铁合金生产大量组分的方法

    公开(公告)号:US20120152413A1

    公开(公告)日:2012-06-21

    申请号:US12969803

    申请日:2010-12-16

    Abstract: A method by which properties of a component (18) formed of a ductile iron alloy and having thick sections can be promoted with an austempering process. The method entails casting a ductile iron alloy containing iron, carbon, silicon and alloying constituents. The casting is solidified at a rate that inhibits segregation of the alloying constituents to grain boundaries of the casting, and so that the casting contains graphite nodules having a count of greater than 100 nodules per mm2. The casting is then austempered by heating to an austenitization temperature to yield a microstructure having a single-phase matrix of austenite that contains carbon, and then quenching the casting to an austempering temperature. The casting is held at the austempering temperature for a duration sufficient to yield a microstructure whose matrix is mostly ausferrite and essentially free of martensite and pearlite.

    Abstract translation: 可以通过奥氏体回火处理来促进由球墨铸铁合金形成并且具有厚壁部分的部件(18)的性能的方法。 该方法需要铸造含铁,碳,硅和合金成分的球墨铸铁合金。 铸件以抑制合金成分偏析到铸件的晶界的速率固化,并且使得铸件含有每mm 2计数大于100个结核的石墨结节。 然后通过加热至奥氏体化温度将铸件奥氏体化,以产生具有含有碳的奥氏体单相基体的微结构,然后将铸件淬火至奥氏体回火温度。 将铸件保持在奥氏体回火温度下足够长的时间以产生其基本上不含铁素体且基本上不含马氏体和珠光体的微结构。

    Nickel base superalloys and turbine components fabricated therefrom
    7.
    发明授权
    Nickel base superalloys and turbine components fabricated therefrom 有权
    镍基超级合金和由其制造的涡轮部件

    公开(公告)号:US06908518B2

    公开(公告)日:2005-06-21

    申请号:US10158134

    申请日:2002-05-31

    CPC classification number: C22F1/10 C22C19/056 C22C19/057

    Abstract: A nickel base superalloy suitable for the production of a large, crack-free nickel-base superalloy gas turbine bucket suitable for use in a large land-based utility gas turbine engine, comprising, by weight percents: Chromium 7.0 to 12.0 Carbon 0.06 to 0.10 Cobalt 5.0 to 15.0 Titanium 3.0 to 5.0 Aluminum 3.0 to 5.0 Tungsten 3.0 to 12.0 Molybdenum 1.0 to 5.0 Boron 0.0080 to 0.01 Rhenium 0 to 10.0 Tantalum 2.0 to 6.0 Columbium 0 to 2.0 Vanadium 0 to 3.0 Hafnium 0 to 2.0 and remainder nickel and incidental impurities.

    Abstract translation: 适用于生产适用于大型陆基公用燃气涡轮发动机的大型无裂纹镍基超级合金燃气轮机铲斗的镍基超级合金,其重量百分比包含:7.0至12.0碳0.06至0.10 钴5.0至15.0钛3.0至5.0铝3.0至5.0钨3.0至12.0钼1.0至5.0硼0.0080至0.01铼0至10.0钽2.0至6.0铌0至2.0钒0至3.0铪0至2.0其余为镍和附带杂质 。

Patent Agency Ranking