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在对直读式铁谱仪改进的基础上，研制了一种新型金属磨粒分析仪，利用该仪器试验了铁磁性颗粒和弱磁性铜颗粒在沉积管内的沉积规律，结果表明金属磨粒分析仪能监测这两类性质不同的颗粒，且弱磁性铜颗粒在沉积管内的沉积不是随机的，这与目前铁谱监测技术中认为弱磁性铜颗粒是随机沉积的结论不同。弱磁性铜颗粒与铁磁性颗粒在沉积管内的沉积曲线具有大致相同的形状，即双曲线。文中还给出这两种颗粒混合油液的沉积试验结果和沉积曲线。
On the basis of improving the direct-reading iron spectrometer, a new type of metal abrasive particle analyzer was developed. By using this instrument, the deposition rule of ferromagnetic particles and weak magnetic copper particles in the deposition tube was tested. The results show that the metal particle analysis The instrument can monitor these two types of particles, and the deposition of weak magnetic copper particles in the deposition tube is not random, which is different from the conclusion that the weak magnetic copper particles are randomly deposited in the current ferrography monitoring technology. The deposition curves of the weak magnetic copper particles and the ferromagnetic particles in the deposition tube have substantially the same shape, ie hyperbola. The article also gives the sediment test results and sedimentation curves of the two kinds of mixed particles of oil.