Analysis of influencing factors on viscosity of hydraulic oil for C-type hydraulic press

Analysis of influencing factors on viscosity of hydraulic oil for C-type hydraulic press

C type single arm hydraulic press hydraulic oil viscosity selection is appropriate, not only can improve the work of the hydraulic system, but also can reduce the temperature rise, so C-type single arm hydraulic press not only needs to select the appropriate brand of hydraulic oil, but also can add additives in the oil, such as adding modifier can improve the viscosity of mineral oil, and also can make the mineral oil with different sticky skin be evenly proportioned To form a mixed hydraulic oil to meet the viscosity requirements.

Viscosity is an important index of C-type single arm hydraulic press hydraulic oil. If the viscosity is small, it will increase the leakage and reduce the volumetric efficiency; if the viscosity is high, it will increase the viscous friction loss, and even cause cavitation or seizure. Generally, the kinematic viscosity of the hydraulic oil used in the hydraulic system of C-type single arm hydraulic press is l06m / S (50 ℃). The following is the viscosity requirements of Zaozhuang Meike Machinery Co., Ltd

(1) Good viscosity temperature performance

When the hydraulic system works, the oil temperature increases with the pressure loss. If the viscosity temperature performance of the hydraulic oil is poor, the viscosity will decrease significantly, which will cause poor lubrication and increase leakage, and affect the working accuracy; if it is started in winter due to the increase of viscosity, the start-up will be affected. Therefore, it is required that the variation range of viscosity should be small in the range of working temperature variation. Generally, the temperature index of hydraulic oil is above 90.

(2) Good rust resistance

When the C-type single arm hydraulic press is stopped or stored for a long time, the hydraulic components are easy to rust, which requires that the hydraulic oil has good rust resistance.

(3) Good oxidation resistance

When the hydraulic system of C-type single arm hydraulic press works, with the gradual increase of oil temperature, the oil is more and more easy to oxidize and deteriorate. Especially under high temperature conditions, the oxidation speed is very fast, and the oil will oxidize, which will form sludge and precipitate dregs, pollute the system and affect the normal operation of the system.

(4) Good demulsibility

If water is mixed into the hydraulic oil, the substances with poor stability in the hydraulic oil will generate hydrophilic organic acids and soaps, which will be emulsified under the stirring of the pump, reduce the lubricity and affect the working performance of the pump and valve.

(5) good anti foam performance.

If the hydraulic fluid of C type single arm hydraulic press has foam, it will cause the hydraulic system to creeping and noise.

Zaozhuang Make Machinery Co., Ltd. is a company specializing in the production of hydraulic press equipment, four column hydraulic press, gantry hydraulic press, hydraulic bending machine and other styles, HP-100, HP-150, HP-200 and other models you can choose.

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