Service HotlineAnalysis of wear of SL3NB1300 cylinder liner in Qingzhou pump The working environment of SL3NB1300 cylinder liner in Qingzhou pump is very harsh, and there are many reasons for wear. Normally, normal wear and tear is allowed due to structural reasons, but improper use and maintenance can cause abnormal wear and tear.
I. Analysis of Wear Causes of SL3NB1300 Cylinder Liner in Qingzhou Pump
1. Long term low-temperature operation. Long term low-temperature operation is caused by poor combustion, with carbon deposits spreading from the upper part of the SL3NB1300 cylinder liner of the Qingzhou pump, resulting in severe abrasive wear on the upper part of the SL3NB1300 cylinder liner of the Qingzhou pump; The second is to cause electrochemical corrosion.
2. The high pressure in the upper part causes the cylinder to wear more than lightly. The piston ring is pressed against the cylinder wall by its own elasticity and back pressure. The greater the positive pressure, the more difficult it is to form and maintain a lubricating oil film, and the more severe the mechanical wear. During the power stroke, as the piston descends, the positive pressure gradually decreases, so the wear of the cylinder is heavier at the top and lighter at the bottom.
3. The entry of mechanical impurities will exacerbate the wear in the middle of the cylinder. Dust in the air, impurities in lubricating oil, etc. Entering between the piston and cylinder wall, causing wear. When dust or impurities move back and forth with the piston in the cylinder, the speed of movement in the middle of the cylinder intensifies the wear in the middle of the cylinder.
4. The filtering effect of the lubricating oil filter is poor. If the lubricating oil filter does not work properly, the lubricating oil cannot be effectively filtered, and the lubricating oil containing a large amount of hard particles will inevitably exacerbate the wear of the inner wall of the SL3NB1300 cylinder liner of the Qingzhou pump.
5. The filtration efficiency of the air filter is low. The function of an air filter is to remove dust and sand particles from the air entering the cylinder, thereby reducing wear on the cylinder, piston, and piston rings. Experiments have shown that if the engine is not equipped with an air filter, cylinder wear will increase by 6-8 times. If the air filter is not cleaned and maintained for a long time, the filtering effect will be poor, which will accelerate the wear of the SL3NB1300 cylinder liner of the Qingzhou pump.
Poor lubrication conditions have caused severe wear on the upper half of the SL3NB1300 cylinder liner of the Qingzhou pump. The upper part of the cylinder liner of Qingzhou pump SL3NB1300 is adjacent to the combustion chamber, with high temperature and poor lubrication conditions. The erosion and dilution of fresh air and unevaporated fuel exacerbate the deterioration of the upper working conditions, causing the cylinder to be in a dry or semi dry friction state, which is the reason for severe wear on the upper part of the cylinder.
Correct selection of lubricating oil: Lubricating oil with viscosity values should be selected strictly according to the season and engine performance requirements. It is not allowed to purchase inferior lubricating oil at will, and the quantity and quality of lubricating oil should be regularly checked and maintained. Strengthening the maintenance of filters to maintain good working condition of air filters, oil filters, and fuel filters is crucial for reducing wear on the SL3NB1300 cylinder liner of Qingzhou pump. These methods can effectively maintain the cylinder liner of the Qingzhou pump SL3NB1300 engine.
The precision requirements for the inner and outer circles of parts with Qingzhou pump SL3NB1300 cylinder liner are relatively high, and coarse and fine parts should be separated during processing.
The cylinder liner of Qingzhou pump SL3NB1300 is a thin-walled component. Due to the poor stiffness of thin-walled parts, they are prone to deformation during the turning process under the action of cutting and clamping forces, thereby affecting shape accuracy and workpiece dimensional accuracy.
Therefore, the key to ensuring the machining accuracy of thin-walled workpieces is to choose the appropriate clamping method, tool geometry angle, cutting amount, and sufficient cooling and lubrication.
When using the Qingzhou pump SL3NB1300 cylinder liner, press it into the cylinder block and re machine the inner diameter.
Now, the SL3NB1300 cylinder liner of Qingzhou pump has gradually been applied in various facilities, thereby increasing the safety of the equipment. It is believed that its development will continue to be widespread.
