The hydraulic oil is the "blood", the injection molding machine hydraulic system is on the circular flow of hydraulic oil to work. Cleanliness of hydraulic oil, hydraulic system to ensure the normal work of a great relationship, according to statistics, there are more than 70% hydraulic system fault source in the hydraulic oil condition. Therefore, the maintenance of hydraulic oil, the main is to prevent it from pollution and hydraulic oil pollution treatment in a timely manner.
  1.Reason hydraulic oil contamination. Hydraulic oil should be clear, transparent, free of impurities, but due to various reasons, to change the appearance and characteristics of hydraulic oil, this is the hydraulic oil pollution, the main reasons are as follows: water is one of the important reasons of hydraulic oil pollution, she makes the oil quality degradation. While the water is more air into the fuel tank is not full, when, the upper part of the air in the air there, little not containing water. In the injection molding machine, hydraulic oil is heated, the upper part of the hot air can contain more water. When the machine stops working, the cooling of the air in the water will agglomerate, and mixed with oil, with the long-term work of injection molding machine, water can be accumulated. Therefore, the fuel tank to fill oil, seal oil inlet, the oil tank and isolation measures, they can effectively control the water into the oil; the dust pollution of hydraulic oil in addition to the important reasons, the dust is small, but it in into the hydraulic oil, its circulation in hydraulic systems, will bring great harm to the hydraulic components. Ways of dust into the hydraulic oil is mainly: the dust is easy to adhesion of hydraulic components, they may follow the liner clearance and into oil, so that oil pollution. Therefore, keep the hydraulic components and cleaning of workshop is the key; wear of hydraulic components will make the metal wear particles in oil. The long-term movement of hydraulic components, will cause the metal to produce wear, the wear particle in oil, old hydraulic system into the other hydraulic components, making it more because of wear, wear metal particles to produce more powerful than dust. Therefore, to choose the good quality hydraulic components, hydraulic components of the replacement of worn; the hydraulic oil temperature is too high, will cause the oil to the local decomposition, the decomposition and catalytic decomposition of accelerated oil, this decomposition to the deterioration of the oil, and produce sediment, therefore, should control the oil temperature, or the selection of hydraulic oil in line with the requirements of the.
  2.how to deal with the hydraulic oil contamination. Although we don't want to hydraulic oil contamination, although we take all sorts of pollution prevention measures, however, the hydraulic oil pollution is inevitable. The use of hydraulic oil contaminated work, will bring damage to the machine. Therefore, once the oil pollution to a certain extent, will be a timely treatment. There are several commonly used treatment methods: release the hydraulic oil from an oil tank, then the oil liquid through a filter, you can remove the solid impurities, such as iron powder dust; the hydraulic oil will be drawn into the sedimentation tank, static 24-30h, at this time, water and impurities will precipitate at the bottom of the groove, and then its release residual oil, can be filtered and re precipitation tank for precipitation, so repeated several times, can make the hydraulic oil regeneration.