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公开(公告)号：EP2267174A3
公开(公告)日：2012-05-02
申请号：EP10165664.3
申请日：2010-06-11
摘要： A cast article of a ductile iron wherein the ductile iron includes carbon from about 2.8 to 3.7 weight percent, silicon from about 3.0 to 3.5 weight percent, molybdenum from 0.8 to 1.5 weight percent, magnesium from about 0.025 to 0.60 weight percent, sulfur less than 0.01 weight percent and nickel from about 0.0 to 1.3 weight percent, the remaining content being iron is provided. The cast article is suitable for a gas turbine casing. A method of manufacturing a cast article is also provided.
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公开(公告)号：EP2322678A1
公开(公告)日：2011-05-18
申请号：EP10169197.0
申请日：2010-07-12
CPC分类号： C22C37/04 , C21D9/32 , C21D2211/001 , C21D2211/005 , C22C37/10 , F05B2230/21 , F05B2240/60 , F05C2201/0439 , Y02E10/722 , Y02P10/32
摘要： 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.
摘要翻译： 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。
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3.发明公开Method of producing large components form austempered ductile iron alloys 审中-公开一种用于制备贝氏体球墨铸铁的合金用于大型部件的形式处理
公开(公告)号：EP2465952A1
公开(公告)日：2012-06-20
申请号：EP11192102.9
申请日：2011-12-06
发明人： Parolini, Jason Robert , Bouse, Gregory Keith , Thangirala, Subrahmanyam , Thomason, Scott Denton , Park, Junyoung
CPC分类号： C22C37/04 , B22D13/023 , C21D1/20 , C21D5/00 , C21D2211/001 , C21D2211/004 , C21D2211/005 , Y02E10/72
摘要： 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 mm 2 . 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.
摘要翻译： 一种方法，通过该形成的延性铁合金的并具有厚的部分可以在等温淬火处理来促进组分（18）的性质。 该方法需要铸造含有铁，碳，硅和合金成分延性铁合金。 铸造以一定的速率固化确实抑制了合金成分的偏析铸件的晶粒边界，所以没有铸造含有具有大于100个结节每mm 2的计数石墨结节。 铸造然后通过在奥氏体化温度加热到以得到具有奥氏体单相矩阵做了显微组织奥氏体回火含有碳，然后淬火在奥氏体回火温度浇铸到。 铸件在该温度下的持续时间等温淬火足以产生的微结构是谁的基质主要是奥铁和基本上不含马氏体和珠光体的保持。
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公开(公告)号：EP2322678B1
公开(公告)日：2012-09-19
申请号：EP10169197.0
申请日：2010-07-12
CPC分类号： C22C37/04 , C21D9/32 , C21D2211/001 , C21D2211/005 , C22C37/10 , F05B2230/21 , F05B2240/60 , F05C2201/0439 , Y02E10/722 , Y02P10/32
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5.发明公开Simo ductile iron castings for gas turbine applications 审中-公开Simo-duktileEisengussstückefürGasturbinenanwendungen
公开(公告)号：EP2267174A2
公开(公告)日：2010-12-29
申请号：EP10165664.3
申请日：2010-06-11
摘要： A cast article of a ductile iron wherein the ductile iron includes carbon from about 2.8 to 3.7 weight percent, silicon from about 3.0 to 3.5 weight percent, molybdenum from 0.8 to 1.5 weight percent, magnesium from about 0.025 to 0.60 weight percent, sulfur less than 0.01 weight percent and nickel from about 0.0 to 1.3 weight percent, the remaining content being iron is provided. The cast article is suitable for a gas turbine casing. A method of manufacturing a cast article is also provided.
摘要翻译： 球墨铸铁制品，其中所述球墨铸铁包括约2.8-3.7重量％的碳，约3.0-3.5重量％的硅，0.8-1.5重量％的钼，约0.025-0.60重量％的镁，小于 0.01重量％的镍和约0.0-1.3重量％的镍，其余的含量是铁。 铸造制品适用于燃气轮机外壳。 还提供了制造铸造制品的方法。
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