In north China, the temperature drops suddenly in winter, especially in northeast China and Inner Mongolia, where the temperature drops to more than 30 degrees below zero. In such a harsh environment, it is undoubtedly a severe test for the normal operation of hydraulic lift. There are many hydraulic lift devices in the above area, after winter began to be unable to use normally, what reason is this formed? Of course, some people say it’s icy, but it’s more than that. Here’s an in-depth look at what’s wrong with a trip hydraulic elevator that doesn’t work in the winter.
Many people believe that, after entering the winter, because of the cold weather formed the hydraulic oil seal of the hydraulic lift, the hydraulic oil could not return to the oil tank normally, forming a slow decline, perhaps not lower. But this is not the main reason, in fact, many professional staff did not know that hydraulic oil is divided into summer and winter use of different varieties of requirements. Often in autumn and winter low temperature, using hydraulic oil in summer can present a series of problems, are more likely to be ice, frozen, in fact, winter also should use welding antifreeze hydraulic oil, after entering the winter, must remember use hydraulic oil containing antifreeze in winter, because antifreeze protection to a certain extent the hydraulic oil would not be disturbed by the external cold air, the hydraulic oil is suitable for work under low temperature, is especially suitable for use in the northern regions of the vast.
Because of hydraulic lift steel at low temperatures, have obvious characteristics of the heat bilges cold shrink, special equipment at the time of planning will be mild steel this feature into consideration, but after all reflect different under the different environment, under the condition of extremely low temperature, the embodiment of the steel will also show some not too safe, such as: add hardness, toughness decrease becomes heavy, such as plus cargo lifting, natural slow speed. At this time, we need to pay more attention to protect the equipment of hydraulic lifting platform. Before the use of the equipment, it should lift up and lower back and forth several times, keep lubrication in key parts, and avoid the occurrence of dry grinding.