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近年来,烧重油的柴油机,由于凝结的燃气成分的作用,使活塞环侧面,环槽和气缸套出现大量的腐蚀损坏。本文研究了磨损机理,以求避免急剧磨损工况的出现。利用重氢核和质子轰击活化的放射性同位素磨损测量枝术,可以确定负荷、转速、增压空气和冷却水温度、燃烧过程和燃料质量对气缸套、活塞环侧面和环槽磨损的影响。同时,计算气缸套内磨损部位水和硫酸蒸汽的露点温度,有助于区别和解释所测得的磨损率。该磨损率包括腐蚀磨损和磨料磨损。在气缸套和活塞环区,具有不同的磨损状态。它们都与温度有关。燃烧始点后移,将减轻所研究的柴油机所有零件的磨损。废气分析表明,在活塞环区域有腐蚀性气体成分存在。
In recent years, burning heavy oil diesel engine, due to the role of condensed gas composition, so that the piston ring side ring groove and cylinder liner a lot of corrosion damage. This paper studies the wear mechanism, in order to avoid the emergence of sharp wear conditions. Radioisotope wear measurement techniques using deuteron and proton bombardment determine the effects of load, speed, charge air and cooling water temperature, combustion process and fuel quality on cylinder liner, piston ring flank and ring groove wear. At the same time, calculating the dew point temperature of the water and sulfuric acid vapor in the wear area of the cylinder liner helps to distinguish and interpret the measured wear rate. The rate of wear includes corrosive wear and abrasive wear. In the cylinder liner and piston ring area, with different wear status. They are all temperature related. After the start of combustion shift, will reduce all parts of the studied diesel engine wear and tear. Exhaust gas analysis shows that there is a corrosive gas component in the piston ring area.