Analytical iron spectrometer, direct reading iron spectrometer and online iron spectrometer. Ferrographs are usually divided into these three categories.
The high-gradient magnetic field is used to deposit the solid foreign matter contained in the oil sample flowing through the magnetic field on the glass piece to observe the shape and size of the foreign matter particles. The iron spectrum analysis technique is particularly suitable for identifying and predicting rolling fatigue. a way. A part of the lubricating oil of the rolling bearing is taken as an oil sample. Color and material, so that the type of wear can be clearly identified, the operating state of the machine is predicted, and hidden dangers are discovered in time.
However, it also has excellent identification ability for non-ferrous metals such as copper, sand, organic matter and sealing debris. In principle, the ferrography technology is aimed at identifying strong magnets such as steel.
It is certain that the bearing has begun to appear fatigue microcracks. When the length-to-thickness ratio of the oil sample is 10 1 fatigue-peeling particles, when the steel-like spherical particles having a diameter of 15 μm appear in the oil sample. When the length is greater than 10 μm, abnormal fatigue wear in the bearing has begun, and when the length is greater than 100 μm, the bearing has failed.
The length is between 20 50 μm and the third type of fatigue debris is a length to thickness ratio of 30 1 fatigue sheets. Sheets often have holes. When fatigue begins to appear, the number of such flakes increases significantly, which can be used together with spherical particles as a sign of fatigue.
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