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公开(公告)号：US20160047008A1
公开(公告)日：2016-02-18
申请号：US14778842
申请日：2014-03-19
申请人： FERROPEM
发明人： Thomas MARGARIA , Aurelie FAY
CPC分类号： C21C1/105 , B22F1/02 , B22F1/025 , C21C7/0037 , C21D5/02 , C21D2211/006 , C22C33/08 , C22C37/00 , C22C37/04 , C22C37/08
摘要： The present invention relates to a particulate inoculant for treating liquid cast-iron, comprising, on the one hand, support particles made of a fusible material in the liquid cast-iron, and on the other hand, surface particles made of a material that promotes the germination and the growth of graphite, disposed and distributed in a discontinuous manner at the surface of the support particles, the surface particles presenting a grain size distribution such that their diameter d50 is smaller than or equal to one-tenth of the diameter d50 of the support particles.
摘要翻译： 本发明涉及一种用于处理液体铸铁的微粒接种剂，一方面包括在液体铸铁中由易熔材料制成的支撑颗粒，另一方面，由促进材料制成的表面颗粒 石墨的发芽和生长，以不连续的方式设置在支撑颗粒的表面上，表面颗粒具有粒径分布，使得其直径d50小于或等于直径d50的十分之一 载体颗粒。
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公开(公告)号：US20130134680A1
公开(公告)日：2013-05-30
申请号：US13688802
申请日：2012-11-29
申请人： Heron Gekonde
发明人： Heron Gekonde
CPC分类号： F16J9/26 , B22D25/06 , C21D5/00 , C21D5/02 , C21D9/0068 , C22C33/08 , C22C37/06 , C22C37/08 , C22C37/10
摘要： A piston ring formed of cast iron provides improved machinability and exceptional performance and minimum costs. The cast iron includes 2.2 to 2.9 wt. % carbon, 3.2 to 4.2 wt. % silicon, 0.75 to 1.25 wt. % copper, 1.0 to 1.5 wt. % manganese, 0.09 to 0.15 wt. % sulfur, not greater than 0.2 wt. % phosphorous, and an average carbon equivalent of 3.8. The cast iron preferably includes a matrix of martensite with MnS and carbides dispersed therein. The matrix is also preferably free of ferrite, austenite, and steadite. The cast iron is formed by casting, autenitizing, quenching, and tempering the alloy.
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3.发明申请LEDEBURITE CAST IRON WITH A HIGH CARBIDE CONTENT AND AN EVENLY DISTRIBUTED GRAPHITE EMBODIMENT 有权具有高碳含量和偶发分布的石墨实例的LEDEBURITE铸铁公开(公告)号：US20110094632A1
公开(公告)日：2011-04-28
申请号：US11817752
申请日：2006-02-08
CPC分类号： C22C37/08 , C21D5/00 , C21D5/02 , C21D2211/002 , C21D2211/004 , C21D2211/007 , C21D2211/008 , C21D2211/009 , F02F1/004
摘要： Disclosed is a cast iron material, especially a ledeburite cast iron material which has a high carbide content of at least 15.0 percent by weight and is provided with a characteristic, free, evenly distributed graphite embodiment that can comprise flake graphite and/or vermicular graphite and/or nodular graphite. The basic matrix can be embodied in a pearlitic and/or bainitic and/or martensitic manner according to the application thereof (diameter (D) of the seal of the running gear, peripheral velocity). The thermal conductivity of the inventive material is three to four times greater than that of white cast materials as a result of the high graphite content, thus advantageously preventing seals of running gears from fretting in case of great peripheral velocities (>5 m/s) and large diameters (D>600 mm) of the seals. Additionally, the high carbide content of at least 15 percent by weight provides for good resistance to wear while additional alloying elements such as chromium, vanadium, molybdenum, and nickel provide the material with adequate resistance to corrosion. The disclosed ledeburite cast iron material featuring an evenly distributed graphite embodiment can be used for producing axial face seals and cylinder hushes, for example.
摘要翻译： 公开了一种铸铁材料，特别是具有至少15.0重量％的高碳化物含量的铁铅铸铁材料，并且具有可包含片状石墨和/或蠕墨性石墨的特征性，自由均匀分布的石墨实施方案， /或球状石墨。 根据其应用（运行装置的密封件的直径（D），圆周速度）），基本基体可以以珠光体和/或贝氏体和/或马氏体的方式实施。 由于高石墨含量，本发明材料的导热性比白铸造材料的导热性高三到四倍，因此有利于防止行星齿轮的密封件在大的圆周速度（> 5m / s）的情况下磨损， 和大直径（D> 600mm）的密封件。 此外，至少15重量％的高碳化物含量提供良好的耐磨性，而另外的合金元素如铬，钒，钼和镍则为材料提供了足够的耐腐蚀性。 所公开的具有均匀分布的石墨实施例的莱氏体铸铁材料可用于例如生产轴向面密封件和气缸刷。
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公开(公告)号：US6024804A
公开(公告)日：2000-02-15
申请号：US850329
申请日：1997-05-02
摘要： The invention is a malleable iron comprising about 250 to 400 nodules of graphite per square millimeter as observed in a photomicrograph at 100.times., and a Brinell hardness of about 195 to 550 BHN. Preferably, the malleable iron further comprises sulfur and manganese wherein the manganese is present in an excess amount of at least 2 times the amount of sulfur plus 0.15% and is formed by two separate quenching steps. The invention further comprises a method of preparing a malleable iron having a high nodule count comprising the steps of prenucleating a malleable iron casting at a temperature of about 600 to 900.degree. F. for about 3 to 6 hours; austenitizing the prenucleated casting at about 1680 to 1740.degree. F. for about 3 to 9 hours to form graphite nodules such that the malleable iron has about 250 to 400 nodules per mm.sup.2 ; and quenching the casting to form pearlite and a malleable iron made by this process.
摘要翻译： 本发明是一种可延展的铁，其包括在100x的显微照相中观察到的每平方毫米约250至400个石墨结石，布氏硬度为约195至550 BHN。 优选地，可锻铸铁还包含硫和锰，其中锰以超过硫的量的至少2倍加上0.15％的量存在，并且通过两个单独的淬火步骤形成。 本发明还包括一种制备具有高结核计数的可延展的铁的方法，其包括以下步骤：在约600-900°F的温度下将可锻铸铁铸件脱核约3至6小时; 在约1680至1740°F奥氏体化前核心铸件约3至9小时以形成石墨结核，使得可锻铸铁具有约250至400个结核/ mm 2; 并将铸件淬火以形成珠光体和通过该方法制成的可锻铸铁。
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公开(公告)号：US09091345B2
公开(公告)日：2015-07-28
申请号：US13688802
申请日：2012-11-29
申请人： Heron Gekonde
发明人： Heron Gekonde
CPC分类号： F16J9/26 , B22D25/06 , C21D5/00 , C21D5/02 , C21D9/0068 , C22C33/08 , C22C37/06 , C22C37/08 , C22C37/10
摘要： A piston ring formed of cast iron provides improved machinability and exceptional performance and minimum costs. The cast iron includes 2.2 to 2.9 wt. % carbon, 3.2 to 4.2 wt. % silicon, 0.75 to 1.25 wt. % copper, 1.0 to 1.5 wt. % manganese, 0.09 to 0.15 wt. % sulfur, not greater than 0.2 wt. % phosphorous, and an average carbon equivalent of 3.8. The cast iron preferably includes a matrix of martensite with MnS and carbides dispersed therein. The matrix is also preferably free of ferrite, austenite, and steadite. The cast iron is formed by casting, autenitizing, quenching, and tempering the alloy.
摘要翻译： 由铸铁形成的活塞环提供了改进的机械加工性能和卓越的性能和最低成本。 铸铁包括2.2-2.9重量％ ％碳，3.2〜4.2wt。 ％硅，0.75〜1.25重量％ ％铜，1.0〜1.5重量％ ％锰，0.09〜0.15重量％ ％硫，不大于0.2wt。 ％磷，平均碳当量为3.8。 铸铁优选包括马氏体与MnS的基质和分散在其中的碳化物。 基质也优选不含铁素体，奥氏体和稳定体。 铸铁通过铸造，再生，淬火和回火合金而形成。
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公开(公告)号：US08328965B2
公开(公告)日：2012-12-11
申请号：US12307237
申请日：2007-06-18
CPC分类号： C21D5/00 , C21D1/185 , C21D1/20 , C21D1/46 , C21D5/02 , C21D2211/005 , C21D2211/009 , C22C37/04 , C22C37/10
摘要： A method for manufacturing mechanical components made of spheroidal cast iron, comprising the following steps: —providing a casting of a mechanical component made of cast iron having a structure which is at least partially ferritic and has a carbon content ranging from 2.5% to 4.0% and a silicon content ranging from 2.0% to 3.5%; —bringing the cast iron casting having an at least partially ferritic structure to a temperature for partial austenitizing which is higher than the lower limit austenitizing temperature (Ac1) and lower than the upper limit austenitizing temperature (Ac3) for a time required to obtain an at least partially austenitic structure; —performing a thermal treatment for isothermal hardening at a temperature ranging from 250° C. to 400° C. in order to obtain a matrix which has at least partially a pearlitic-ferritic or perferritic structure.
摘要翻译： 一种用于制造由球墨铸铁制成的机械部件的方法，包括以下步骤：提供具有至少部分铁素体且碳含量为2.5％至4.0％的结构的由铸铁制成的机械部件的铸件， 硅含量范围为2.0％〜3.5％; 将具有至少部分铁素体结构的铸铁铸件压制成高于下限奥氏体化温度（Ac1）并低于上限奥氏体化温度（Ac3）的部分奥氏体化温度达到所需时间 最小部分奥氏体结构; - 在250℃至400℃的温度下进行等温硬化的热处理，以获得至少部分具有珠光体 - 铁素体或非铁酸盐结构的基体。
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公开(公告)号：US20020195180A1
公开(公告)日：2002-12-26
申请号：US10176434
申请日：2002-06-20
发明人： Werner Menk , Dirk Lindemann , Dirk Richarz
IPC分类号： C22C037/00
摘要： A modified nodular cast iron alloy contains positive additions of boron and silicon in a content of greater than 2.4% by wt.
摘要翻译： 改性球墨铸铁合金含有大于2.4重量％的硼和硅的正添加。
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8.发明授权
公开(公告)号：US4990194A
公开(公告)日：1991-02-05
申请号：US403876
申请日：1989-09-07
申请人： Fumio Obata , Hideaki Nagayoshi , Eiji Nakano
发明人： Fumio Obata , Hideaki Nagayoshi , Eiji Nakano
CPC分类号： C21D5/02
摘要： A thin high-strength article of spheroidal graphite cast iron having graphite particles dispersed in a ferrite matrix containing 10% or less of pearlite, characterized in that there are substantially no fine gaps between the graphite particles and the ferrite matrix. It is produced by pouring a melt having a spheroidal graphite cast iron composition into a casting mold; removing the casting mold by shake-out, while substantially the entire portion of the resulting cast iron product is still at a temperature of its A.sub.3 transformation point or higher; immediately introducing the cast iron product into a uniform temperature zone of a continuous furnace kept at a temperature of the A.sub.3 transformation point or higher, where the cast iron product is held for 30 minutes or less to decompose cementite contained in the matrix; and transferring the cast iron product into a cooling zone of the continuous furnace to cool the cast iron product at such a cooling speed as to achieve the ferritization of the matrix.
摘要翻译： 一种具有分散在含有10％以下的珠光体的铁素体基体中的石墨粒子的球状石墨铸铁的薄型高强度物品，其特征在于，在石墨粒子与铁素体基体之间基本上没有微细的间隙。 通过将具有球墨铸铁组合物的熔体浇注到铸模中来制造; 通过振动除去铸模，同时基本上所得铸铁制品的整个部分仍然处于其A3相变点或更高的温度; 立即将铸铁产品引入保持在A3转化点或更高温度的连续炉的均匀温度区，其中铸铁产品保持30分钟以下以分解包含在基质中的渗碳体; 并将铸铁产品转移到连续炉的冷却区中，以这样的冷却速度冷却铸铁产品，以实现基体的铁素体化。
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公开(公告)号：US20090320971A1
公开(公告)日：2009-12-31
申请号：US12307237
申请日：2007-06-18
CPC分类号： C21D5/00 , C21D1/185 , C21D1/20 , C21D1/46 , C21D5/02 , C21D2211/005 , C21D2211/009 , C22C37/04 , C22C37/10
摘要： A method for manufacturing mechanical components made of spheroidal cast iron, comprising the following steps: -providing a casting of a mechanical component made of cast iron having a structure which is at least partially ferritic and has a carbon content ranging from 2.5% to 4.0% and a silicon content ranging from 2.0% to 3.5%; -bringing the cast iron casting having an at least partially ferritic structure to a temperature for partial austenitizing which is higher than the lower limit austenitizing temperature (Ac1) and lower than the upper limit austenitizing temperature (Ac3) for a time required to obtain an at least partially austenitic structure; -performing a thermal treatment for isothermal hardening at a temperature ranging from 250° C. to 400° C. in order to obtain a matrix which has at least partially a pearlitic-ferritic or perferritic structure.
摘要翻译： 一种用于制造由球墨铸铁制成的机械部件的方法，包括以下步骤：提供具有至少部分铁素体且碳含量为2.5％至4.0％的结构的由铸铁制成的机械部件的铸件， 硅含量范围为2.0％〜3.5％; 将具有至少部分铁素体结构的铸铁铸件压制成高于下限奥氏体化温度（Ac1）并低于上限奥氏体化温度（Ac3）的部分奥氏体化温度达到所需时间 最小部分奥氏体结构; - 在250℃至400℃的温度下进行等温硬化的热处理，以获得至少部分具有珠光体 - 铁素体或非铁酸盐结构的基体。
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10.发明申请公开(公告)号：US20090007995A1
公开(公告)日：2009-01-08
申请号：US12235054
申请日：2008-09-22
IPC分类号： C21D1/26
摘要： A method by which high temperature properties of a ductile iron alloy, including creep and LCF properties, can be increased for pressure-containing components that are subject to creep and low cycle fatigue. The method comprises modifying the ductile iron alloy to contain 0.4 to 0.8 weight percent molybdenum. A casting of the modified ductile iron alloy is produced and then annealed at a temperature of at least 725° C. for not less than five hours to eliminate carbides and/or stabilize pearlite in the casting. The annealed casting of the modified ductile iron alloy exhibits improved creep resistance and low cycle fatigue properties in comparison to an identical casting of a ductile iron alloy that does not contain molybdenum.
摘要翻译： 对于承受蠕变和低循环疲劳的含压组分，可以增加包括蠕变和LCF性能的球墨铸铁合金的高温性能的方法。 该方法包括改性球墨铸铁合金以含有0.4-0.8重量％的钼。 制造改性球墨铸铁合金的铸件，然后在至少725℃的温度下退火不少于5小时以消除铸件中的碳化物和/或稳定珠光体。 与不含钼的球墨铸铁合金的相同铸造相比，改性球墨铸铁合金的退火铸造表现出改善的抗蠕变性和低循环疲劳性能。
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