2.直读式铁谱仪 直读式铁谱仪主要用来直接测定油样中磨粒的浓度和尺寸分布,只能作定量分析,能够方便、迅速而较准确地测定油样内大小磨粒的相对数量,因而能对设备状态作出初步的诊断,是目前设备监测和故障诊断的较好手段之一。如果不仅要了解磨损微粒的数量及分布情况,还要观察分析磨粒的形态、表面形貌和成分等因素,作出较准确的诊断,就需使用分析式铁谱仪。 (1)工作原理 如图9所示,取自机器的油样经浓度及粘度稀释后,在虹吸作用下流经位于磁铁上方的玻璃沉淀管,油样中可磁化微粒在高梯度磁场作用下,依其粒度顺序排列在沉积管内壁不同位置上。在沉积管入口处,即在1～2mm位置上沉积着大于5μm的 2. Direct reading iron spectrometer direct reading iron spectrometer is mainly used for direct determination of oil concentration and particle size distribution of abrasive, only for quantitative analysis, can be convenient, rapid and more accurate determination of the size of the oil mill The relative number of particles, which can make a preliminary diagnosis of the state of the equipment, the current equipment monitoring and fault diagnosis is one of the better ways. If not only to understand the number and distribution of wear particles, but also to observe the morphology of abrasive particles, surface morphology and composition and other factors, to make a more accurate diagnosis, you need to use analytical iron spectrometer. (1) working principle shown in Figure 9, the oil sample taken from the machine after dilution by concentration and viscosity, under the siphon effect through the glass located above the glass tube, magnetized particles in the oil sample under the action of a high gradient magnetic field, According to their granularity arranged in different positions on the inner wall of the deposition tube. Deposited at the entrance to the deposition tube, ie, at a location of 1 to 2 mm, is deposited with more than 5 μm