石墨铝复合铸件

• 作 者: 史家骅 张颂超
• 出 处: 机械制造
• 发表日期: 1981年04期
• 关键词: 铸件 石墨 是非标准 锡基轴承合金 石墨粉 锻造合金 耐磨性能 铝合金 法用 掺入

印度科学院研制了一种铝和颗状石墨的复合铸件,它具有良好的耐磨性能,在负荷、速度适中,并有润滑的条件下(包括界面润滑),这些合金可以代替常用的铜、铅、锡基轴承合金。这一材料主要用于汽车及机床上的轴瓦。本法用涂铜或涂镍甚至无涂层的石墨粉掺入铝合金中,已生产了一批铸件,其中有100炉以上是3～15kg的零件。选用的铝合金是非标准的(4.5％Cu,1％Si,1％Mg,其余为铝),它与LM11或AK2(锻造合金)相似。

Indian Academy of Sciences has developed a composite casting of aluminum and graphite, it has good wear resistance, load, speed and lubrication conditions (including interface lubrication), these alloys can replace the commonly used copper, lead , Tin-based bearing alloy. This material is mainly used in automotive and machine tool bearings. This method is coated with copper or nickel or even uncoated graphite powder into the aluminum alloy, has produced a number of castings, of which more than 100 furnaces are 3 ~ 15kg parts. The aluminum alloys used are non-standard (4.5% Cu, 1% Si, 1% Mg, balance aluminum) and are similar to LM11 or AK2 (forged alloy).