武汉青山热电厂高温高压锅炉排污阀门是在含有铁屑、灰渣等杂质及酸碱盐等腐蚀的污水中工作,受高速水蒸汽冲刷磨蚀作用,我们采用45钢渗硼制作阀杆来代替38CrMoAl、3Cr13、1Cr18Ni9Ti等材料来制做阀杆,寿命提高10倍以上。可节约大量贵重材料,减少了维修工时。一、渗硼工艺我们采用膏剂渗硼(属于固体渗硼法)这种方法适用于小批生产,无需专用设备,并适用于大件的局部渗硼。 Wuhan Qingshan Thermal Power Plant high temperature and pressure boiler blowdown valve is in the containing iron filings, ash and other impurities and acid-base salt and other corrosive sewage work, erosion by high-speed steam erosion, we use 45 steel boron infiltration valve instead of 38CrMoAl, 3Cr13, 1Cr18Ni9Ti and other materials to make stem, life expectancy increased by 10 times. Can save a lot of valuable materials, reducing maintenance man hours. First, boronizing process We use paste boronizing (belonging to the solid boronizing method) This method is suitable for small batch production, without special equipment, and for large parts of the local boron.