Mechanical equipment in coal mines will have certain damage after a long time of use,and it is of great significance to detect the damage efficiently.Magnetic particle detection technology is a kind of non-destructive testing technology,which is widely used in flaw detection of mechanical equipment in coal mines.Firstly,the principle of magnetic particle detection technology was analyzed.Then,its application in flaw detection of mechanical equipment in coal mines was discussed,including fan blade defect detection and hydraulic rod wear detection.It can provide some reference for the maintenance of mechanical equipment in coal mines.
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