When using the China ZFY hard tooth surface reducer, it needs to be lubricated. Only by regularly lubricating it can it be more flexible in use. Below is an introduction to the selection of ZFY hard tooth surface reducer lubricating oil viscosity:
The viscosity of ZFY hard tooth surface reducer lubricating oil is mainly achieved through base oil and viscosity index improver. The viscosity of lubricating base oil is related to its molecular structure and molecular weight: the larger the average molecular weight, the higher the viscosity of the oil. As for base oil, mineral oil lubricating oil includes lubricating oil refined from paraffin based crude oil, lubricating oil refined from cycloalkane based crude oil, and lubricating oil refined from intermediate based crude oil. Lubricating oil refined from paraffin based crude oil has better viscosity temperature performance than the other two. Good viscosity index agent not only requires high viscosity increasing ability and good shear stability, but also requires good low-temperature performance and thermal oxidation stability. Viscous index agents with poor shear stability, due to... Under the action of shear stress, the main chain of its polymer breaks, causing a decrease in molecular weight and thinning of the oil, thereby reducing wear and tear Fuel consumption and other factors have a series of effects. For lubricating oils of the same viscosity grade, if non refined base oils and poor viscosity indicators are used, although they can achieve a certain viscosity standard through blending, their viscosity temperature and shear stability properties are poor, and they cannot reach the expected service life.
Therefore, for low-speed and heavy-duty cement China ZFY hard tooth surface reducers, it is advisable to avoid using this type of lubricating oil as much as possible, and choose high-quality advanced lubricating oil because its base oil and viscosity agent are relatively good. The higher the viscosity of the gear oil, the stronger the protection ability to prevent various damages to the tooth surface. Therefore, the wear of the ZFY hard tooth surface reducer is smaller, while the viscosity is too high, and the abrasive particles are not easy to settle, which reduces the flushing effect of the lubricating oil on the tooth surface and the heat absorption and cooling effect, resulting in poor lubrication. At the same time, the abrasive particles suspended in the oil enter the meshing area, which is easy to cause abrasive particle wear. In addition, excessive viscosity increases transmission resistance, tooth surface temperature, and power consumption. Generally speaking, increasing viscosity by one grade increases energy consumption by about 1%~5%. Moreover, the stability and emulsion resistance of the oil will decrease, However, high viscosity has significant benefits in reducing noise and preventing oil leakage. In addition, equipment with uneven loads, frequent start-up, and working in high-temperature environments should have slightly higher viscosity.
To choose a good lubricating oil, it is necessary to select it based on its viscosity, so that the selected oil can be helpful for the China ZFY hard tooth surface reducer, achieve better lubrication effect, and be helpful for it.