汽轮机轴瓦是汽轮机的重要部件之一,质量好坏直接影响汽轮机的运行安全。在汽轮机的检修工作中,常会遇到轴瓦乌金裂纹、脱胎、熔化等情况。当采取补焊方法不能处理时,就得重新浇铸乌金。浇铸时如果乌金的材质不佳或浇铸工艺不良,会造成夹渣、气孔,甚至出现裂纹和脱胎,影响轴瓦的使用寿命。浇铸乌金的方法有两种,一种是模具浇铸法,一种是离心浇铸法。我厂过去一直是采用 Steam turbine bearing bush is one of the important components of the turbine, the quality of a direct impact on turbine safety. Overhaul in the turbine work, often encounter bearing Wujin cracks, born, melting and so on. When the repair welding method can not handle, you have to re-cast black gold. Casting if the poor quality of the material or casting bad process, will result in slag, porosity, and even cracks and bodiless, affecting the service life of bearing. There are two ways to cast black gold, one is the mold casting method and the other is the centrifugal casting method. I used to use the factory