LEDEBURITE CAST IRON WITH A HIGH CARBIDE CONTENT AND AN EVENLY DISTRIBUTED GRAPHITE EMBODIMENT
    54.
    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

    IPC分类号: C22C37/06 C21D5/00

    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。

    Cast iron semi-finished product excellent in workability and method of production of the same
    56.
    发明申请
    Cast iron semi-finished product excellent in workability and method of production of the same 审中-公开
    铸铁半成品优良的加工性和生产方法相同

    公开(公告)号:US20100172784A1

    公开(公告)日:2010-07-08

    申请号:US12655199

    申请日:2009-12-23

    摘要: The present invention provides tough cast iron and cast iron semi-finished products excellent in workability without heat treatment requiring massive heat energy and long time and a method of production enabling these to be efficiently produced, that is, cast iron of ingredients of white cast iron where particles of spheroidal graphite or flattened graphite are dispersed, cast iron where the ingredients of the white cast iron satisfy, by wt %, (% C)≦4.3−(% Si)÷3 and C≧1.7% and where the particles of spheroidal graphite are dispersed at a density of 50 particles/mm2 or more, or cast iron where the particles of flattened graphite have a width of 0.4 mm or less and a length of 50 mm or less.

    摘要翻译: 本发明提供了在不需要大量热能和长时间的热处理的情况下,具有优异的可加工性的铸铁和铸铁半成品,以及能够有效地生产这些材料的生产方法,即白铸铁成分的铸铁 其中分散有球状石墨或扁平石墨的颗粒,其中白铸铁的成分满足重量%(%C)≦̸ 4.3 - (%Si)÷3和C≥1.7%的铸铁,其中颗粒 球状石墨以50个/ mm 2以上的密度分散,或者扁平石墨的粒子的宽度为0.4mm以下,长度为50mm以下的铸铁。

    METHOD AND APPARATUS FOR THE PRODUCTION OF A CASTING
    57.
    发明申请
    METHOD AND APPARATUS FOR THE PRODUCTION OF A CASTING 有权
    用于生产铸件的方法和装置

    公开(公告)号:US20100135842A1

    公开(公告)日:2010-06-03

    申请号:US12452340

    申请日:2008-09-09

    摘要: A method and apparatus for the production of a casting comprises: —pouring molten material into a mould for forming the casting; —allowing the molten material to solidify; —removing the mould at least in part from the resulting solidified casting; and —locating the solidified casting in a chamber (10) that completely surrounds and facilitates a controlled rate of cooling of the casting.

    摘要翻译: 用于生产铸件的方法和装置包括:将熔融材料浇铸到用于形成铸件的模具中; - 使熔融材料凝固; - 至少部分地从所得固化铸件中移除模具; 以及将固化的铸件定位在完全包围并有助于铸件的受控冷却速率的室(10)中。

    Acid resistant austenitic alloy for valve seat insert
    58.
    发明申请
    Acid resistant austenitic alloy for valve seat insert 审中-公开
    耐酸奥氏体合金阀座插件

    公开(公告)号:US20070086910A1

    公开(公告)日:2007-04-19

    申请号:US11251308

    申请日:2005-10-14

    申请人: Xuecheng Liang

    发明人: Xuecheng Liang

    IPC分类号: C22C37/06

    摘要: A high carbon austenitic iron base alloy for wear and corrosion resistant applications is developed for valve seat insert applications when corrosion resistance is required. The alloy comprises 1.8-2.8 wt % carbon, 0.5-3.5 wt % silicon, 10.0-25.0 wt % chromium, less than 1.5 wt % manganese, 2.0-10.0 wt % molybdenum and tungsten combined, 1.0-4.0 wt % niobium and vanadium combined, 0-1.0 wt % titanium, 0.01-0.2 wt % aluminum, 12-25 wt % nickel, 0.5-3.0 wt % copper, and the balance being iron and a small amount of impurities.

    摘要翻译: 开发了用于耐磨和耐腐蚀应用的高碳奥氏体铁基合金,用于需要耐腐蚀性的阀座插入件。 该合金包含1.8-2.8重量%的碳,0.5-3.5重量%的硅,10.0-25.0重量%的铬,小于1.5重量%的锰,2.0-10.0重量%的钼和钨的组合,1.0-4.0重量%的铌和钒的组合 ,0-1.0重量%的钛,0.01-0.2重量%的铝,12-25重量%的镍,0.5-3.0重量%的铜,余量为铁和少量的杂质。