公开(公告)号：US08317942B2

公开(公告)日：2012-11-27

申请号：US11817752

申请日：2006-02-08

申请人： Laszlo Pelsoeczy ,  Wilfried Langner ,  Hans-Henning Zutz ,  Thomas Gerle ,  Franz-J. Goebbeis

发明人： Laszlo Pelsoeczy ,  Wilfried Langner ,  Hans-Henning Zutz ,  Thomas Gerle ,  Franz-J. Goebbeis

IPC分类号： C22C37/06 ,  C21D5/00

CPC分类号： C22C37/08 ,  C21D5/00 ,  C21D5/02 ,  C21D2211/002 ,  C21D2211/004 ,  C21D2211/007 ,  C21D2211/008 ,  C21D2211/009 ,  F02F1/004

摘要： A cast iron material, particularly a ledeburitic cast iron material with a carbide content of at least 15 wt. % and a characteristic free, evenly distributed graphite formation is disclosed. In this case, the evenly distributed graphite formation may comprise graphite flakes and/or vermicular graphite and/or nodular graphite. Depending on the respective application (diameter (D) of the running gear seal, peripheral speed), the basic matrix may be realized in pearlitic and/or bainitic and/or martensitic form. Due to the high graphite content, the material has a thermal conductivity that is three to four times greater than that of white cast iron materials, wherein this provides the advantage that no scoring of the running gear seals occurs at high peripheral speeds (>5 m/s) and large diametrical dimensions of the seals (D >600 mm). In addition, the high carbide content of at least 15 wt. % provides an adequate wear resistance, and other alloying elements such as chromium, vanadium, molybdenum and nickel provide the material with a corresponding corrosion resistance. The aforementioned ledeburitic cast iron material with evenly distributed graphite formation can be used, for example, for the manufacture of axial face seals and cylinder liners.

摘要翻译： 铸铁材料，特别是具有至少15重量％的碳化物含量的铅铝铸铁材料。 公开了一种不含特征的均匀分布的石墨。 在这种情况下，均匀分布的石墨层可以包括石墨薄片和/或蠕墨石墨和/或结节状石墨。 根据各自的应用（行驶齿轮密封件的直径（D），圆周速度），基本基质可以以珠光体和/或贝氏体和/或马氏体形式实现。 由于石墨含量高，材料的导热系数比白铸铁材料的导热系数高三到四倍，这样做的优点在于，在高圆周速度（> 5 m / s）和密封件的大直径尺寸（D> 600 mm）。 此外，高碳化物含量至少为15wt。 ％提供足够的耐磨性，其他合金元素如铬，钒，钼和镍为材料提供相应的耐腐蚀性。 可以使用具有均匀分布的石墨形成的上述铅铁合金铸铁材料，例如用于制造轴向面密封件和气缸套。

公开(公告)号：US20110094632A1

公开(公告)日：2011-04-28

申请号：US11817752

申请日：2006-02-08

申请人： Laszlo Pelsoeczy ,  Wilfried Langner ,  Hans-Henning Zutz ,  Thomas Gerle ,  Franz-J Goebbeis

发明人： Laszlo Pelsoeczy ,  Wilfried Langner ,  Hans-Henning Zutz ,  Thomas Gerle ,  Franz-J Goebbeis

IPC分类号： C22C37/06 ,  C21D5/00

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。