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It is very important that the bearing is in good condition. Generally, multiple axle box temperature detectors can be arranged along the railway line, and the infrared temperature of the radiator can be measured to detect whether the temperature of the axle box rises abnormally. Although it is possible to use these high-performance devices to eliminate dangerous bearings, in the research and development of new types of bearings, in order to ensure the normal operation of the various components of bearings, lubricants, etc., it is necessary to study preventive measures. As the electric traction line grew, the grounding device was installed at the time of the engine, but new damage was found on the sliding bearing and rolling bearing of the trailer. Therefore, the release of leakage current has become a new research goal. The effect of grease and leakage current on the metal Even with grease, the leakage current will destroy the coating of the grease through the discharge, causing the electric corrosion of the shaft and the bearing. If the electric corrosion continues to develop, the probability of the temperature rise of the axle box will be Will increase.
If a leakage current occurs in the part that makes up the bearing, the current will cross the barrier formed by the lubricant, breaking the insulation and flowing along the arc. At this time, the local temperature of the bearing metal rises and the metal structure changes, resulting in a harder white half-moon martensite work progress than the parent metal. The second stage of the vehicle/orbit interaction test uses a tanker, in 1999. It was carried out online in Topeka, Kansas and Fort Madison, Iowa in August and was completed in the near future. In this test, testing vehicle response and track geometry conditions was done by running eastward while the tanker was loaded and running westward when empty. These test data will be used to develop a new tanker neural network model. The third phase of the commercial operation test plan for the coal-powered gondola was carried out in 2000.