1、目测换油法。它是了凭维修人员的经验,根据目测到的一些油液常规状态变化——如油液变黑、发臭、变成乳白色等,决定是否换油。这一方法取决于实际操作人员的经验积累了。
2、取样化验法。定期对硫化机中的油液进行取样化验,测定必要的项目(如黏度、酸值、水分、颗粒大小和含量以及腐蚀等等)和指标,按油质的实际测量值与规定的油液劣化标准进行对比,确定了油液该不该换。取样时间:对一般工程机械的液压系统应在换油周期前一周进行,关键设备,如:TBM全断面掘进机等的液压系统应每隔500小时进行一次取样化验,化验结果应填入设备技术档案。取样化验法适用于关键设备和大型液压设备。
The vulcanizer should be replaced after running for a period of time. The oil change is determined by the degree of contamination of the oil. However, how to grasp the time of oil change is also a problem. Today, Xiaobian has helped you find some ways to determine the oil change period of vulcanizer.
1. Visually changing the oil method. It is based on the experience of maintenance personnel, according to the visual observation of some changes in the conventional state of oil - such as oil blackening, smelling, turning Milky white, etc., to decide whether to change oil. This method depends on the experience accumulated by the actual operators.
2. Sampling and testing methods. Sampling and testing of oil in vulcanizer regularly, determining necessary items (such as viscosity, acidity, moisture, particle size and content, corrosion, etc.) and indicators, and comparing actual measured value of oil quality with prescribed oil deterioration standard, determining whether oil should be replaced or not. Sampling time: The hydraulic system of general construction machinery should be carried out one week before the oil change period. The key equipment, such as TBM full-face tunneling machine, should be sampled every 500 hours. The test results should be filled in the equipment technical files. Sampling and testing methods are applicable to key equipment and large hydraulic equipment.
3, regular oil change method. According to the environmental conditions, working conditions and oil exchange cycle of the equipment site, the replacement will be carried out at the expiration date. This method is applicable to enterprises with more hydraulic equipment.