Evolution of working medium of hydraulic press

Evolution of working medium of hydraulic press

At first, water was used as the working medium of hydraulic press, and then a small amount of emulsified oil was added into the water to increase the lubricity and reduce the corrosion. In the late 19th century, hydraulic press with mineral oil as working medium appeared. The oil has good lubricity, corrosion resistance and moderate viscosity, which is beneficial to improve the performance of hydraulic press. In the second half of the 20th century, a new type of water-based emulsion appeared, which is "water in oil" instead of the original "oil in water". The outer phase of water in oil emulsion is oil, its lubricity and corrosion resistance are close to oil, and the oil content is very small, so it is not easy to burn. However, the high price of water-based emulsion limits its popularization

The working medium used in hydraulic press is not only to transmit pressure, but also to ensure that the working parts of the machine work sensitively, reliably, with long service life and less leakage.

The basic requirements for working medium of hydraulic press are as follows:

① It has suitable fluidity and low compressibility to improve the transmission efficiency;

② It can prevent corrosion;

③ Good lubrication performance;

④ Easy to seal;

⑤ Oxidation resistance, stable performance, long-term work without deterioration.

Zaozhuang Make Machinery Co., Ltd. hydraulic press working medium is oil, can provide higher efficiency, four column hydraulic press working range more, simple operation, stable structure, including HP-100F, HP-150F, HP-200F and other models, welcome new and old customers to consult!