High speed, fine and high speed punch press to replace the oil of stamping die:

1. Estimate the oil change method. It is based on the work experience of maintenance personnel, according to the estimated basic situation of some oil change - such as CNC high-speed punch oil blackening, odor, milk white, etc., the decision is not to change oil.

2, on time oil change method. According to the natural environment standard of the place where the speed of the high-speed punch press belongs, the standard in work and the oil change cycle time of the commonly used products, the replacement will be carried out when the expiration of the period. This kind of method is very useful for companies with more hydraulic machinery.

3. Sampling test method. Carry out sampling and testing of the oil in the four-column hydraulic press on time, measure the necessary new items (such as viscosity, acid value, moisture, particle size and composition and its etching, etc.) and index value, compare the specific measured value of the oil with the required oil deterioration specification, and make clear whether the oil should be changed or not. Sampling time: the hydraulic transmission system of the general engineering machinery and equipment of the Skannar mould and steel shall be carried out one week before the oil change cycle time. Sampling and testing of the hydraulic transmission system of the main equipment, such as the TBM full cross-section roadheader, shall be carried out every 500 hours, and the test results shall be filled in the technical files of the machine and equipment. Sampling test method is suitable for main equipment and large and medium-sized hydraulic machinery.

Generally speaking, 500 tons of high-speed punch equipment to replace the hydraulic oil after 3 months, and then every 6 months will need to replace or pass a hydraulic oil. Hydraulic oil replacement in accordance with JB/ T9737.3-2000 specification to implement. When the residual and waste are removed, it is suggested to fill the hydraulic oil as a preservative, so that the viscosity and wettability of the old hydraulic oil can be standardized.