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  1. address:No. 155 Xinchang Road, Changzhou
  2. tel:0519-83258606
  3. fax:0519-83268763
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B a happy new year to the National People's hydraulic!

2017-04-20 10:45:48 2814

Classification of hydraulic fluids:

Ordinary hydraulic oil

Special hydraulic oil

1, petroleum based hydraulic oil

Antiwear hydraulic oil

High viscosity index hydraulic oil

Petroleum based hydraulic oil is based on crude oil and refined oil, adding antioxidant or anti-wear agent, such as mixed with hydraulic oil, different properties, different varieties, different precision is added to different additives.

Synthetic hydraulic oil phosphate ester hydraulic oil

2, difficult to burn hydraulic oil - ethylene glycol hydraulic oil

Aqueous hydraulic oil emulsion

Emulsion

Oil in water emulsified oil

1) petroleum based hydraulic oil is a kind of hydraulic oil, which is based on petroleum refining

Additive of energy. Additives have antioxidant additives, oil additives, anti-wear additives, etc.. Hydraulic oil with different performance is required in different working conditions, and the hydraulic oil of different varieties is different from different additives and different additives.

2) phosphate ester hydraulic oil is one of the most difficult hydraulic oil. Its wide range of use, up to -54~135. Good combustion resistance, oxidation stability and lubricity are very good. The disadvantage is that the compatibility with a variety of sealing materials is poor, there is a certain degree of toxicity.

3) - ethylene glycol hydraulic fluid, which is composed of water, ethylene glycol and additives, and distilled water is 35%~55%, so it has good resistance to combustion. The freezing point of the liquid is low, up to -50 DEG C, and the viscosity index is high (130~170), which is a Newton fluid. The disadvantage is that the paint can become soft. But it has no effect on the general sealing material.

4) emulsion emulsion is a kind of hydraulic oil, which is composed of water, base oil and various additives. Water in oil emulsion and oil water emulsion, the former water content of 90%~95%, the latter water content of 40%.