The influence of hydraulic oil on seals

Hydraulic oil is used as a working medium in the hydraulic transmission system, which plays the role of energy transmission, conversion and control. It also plays the role of lubrication, corrosion prevention, rust prevention and cooling of various components in the hydraulic system.

At present, most of the sealing materials used at domestic and abroad are polymer elastomers, and under some special conditions, plastics and various metals are also used. But no matter what kind of material it belongs to, it should have the following properties:

1. It has certain mechanical and physical properties: such as tensile strength, fixed tensile strength, elongation;

2. It has a certain degree of elasticity, appropriate hardness, and small compression and permanent deformation;

3. It is compatible with the working medium and is not easy to swell, decompose and harden;

4. Abrasion resistance and a certain degree of tear resistance;

5. It has high temperature and low temperature aging performance.