The cylinder liner wear What are the characteristics of the process?
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Diesel in the run-in phase of test run, as the piston ring and cylinder liner on the surface of the micro-roughness, so wear is very strong. The run-in as normal state of technology, due to inter-fitting parts with good lubrication conditions improve, in a longer working hours, is slow and wear the uniform. Finally, because of wear and tear when the cylinder gap by more than a certain value, as a result of channeling gas and oil leakage and movement of the percussion parts and other factors, and increased wear and tear up.
Cylinder along the direction of the high degree of wear and tear of the situation around is not the same, wear the size of the temperature, pressure and lubrication conditions vary. In the normal wear and tear, the most wear and tear when the Pistons took place only at the point when the first location near the gas ring. Because of high temperatures, poor lubrication, abrasion resistance of the metal fell, and as a result of the gas, piston cylinder on the inner wall of the greatest pressure. The central cylinder is rich in oil film, you can maintain a relatively favorable conditions for lubrication to protect the cylinder from severe wear and corrosion, wear and tear and therefore relatively small. Pistons ended the next point in the vicinity of the location, due to sliding a low speed, the film is not easy to form, the cylinder liner wear slightly larger than Central.
Due to the use of non-performing maintenance or other man-made factors contributing to our cylinder in the near future a large number of wear and tear, known as abnormal wear and tear. For example, when the poor efficiency of the air filter or a short circuit when the wear and tear; when the oil filter or non-performing pollution caused by degeneration of wear and tear.
When the use of high-sulfur diesel fuel at low temperatures or in the start-up frequently give rise to corrosion and wear. In the first piston ring only near the location of strong acid, wear and tear than the normal wear and tear from 1 to 2 times as large. At this time also increased wear and tear of the central 4 to 6 times, mainly due to the corrosion off the metal particles caused by abrasion caused.
We can see from the above, it is necessary to extend the service life of the cylinder, we must strictly abide by the rules, meticulously maintained, may lead to the elimination of all normal wear and tear. In particular, should be a good filter clearance, clearance oil, so that the net oil air net.