Engineering machinery is inseparable from the cylinder, cylinder and seal, the common seal is the seal ring, also known as oil seal, play the role of isolation of oil, prevent oil overflow or through.

 

Common sealing ring for hydraulic cylinder and the following types: dust ring, piston rod sealing ring, buffer sealing ring, guide support ring, end cover sealing ring and piston sealing ring.

 

Sealing ring is an indispensable part, countless advantages, S first it in the working pressure and a certain temperature range, should have good sealing performance, and with the increase of pressure can automatically improve the sealing performance. Secondly, the friction between the sealing ring device and the moving parts should be small, and the friction coefficient should be stable. Furthermore, the sealing ring has strong corrosion resistance, is not easy to aging, long working life, good wear resistance, and can be automatically compensated to a certain extent after wear.

 

After Z, the sealing ring structure is simple, easy to use and maintenance, so that the sealing ring has a longer life. The role of sealing ring is very large, so it is applied to all aspects of people's life, such as hardware and plastic, water supply and drainage, HVAC, fire fighting, pneumatic components and bathroom and other fields.

 

So do you know what the sealing ring material Z? Now please follow the small series to see the introduction of the following 12 materials.

 

Sealing ring material introduction:

NBR nitrile rubber sealing ring: suitable for use in petroleum hydraulic oil, glycol hydraulic oil, two ester lubricating oil, gasoline, water, silicon grease, silicone oil and other media. It is a widely used and low cost rubber seal. Do not apply to G solvents, such as ketones, ozone, nitro hydrocarbons, MEK and chloroform. The general operating temperature range is -40~120 ℃.

 

HNBR hydrogenated nitrile rubber sealing ring: has the best corrosion resistance, tear resistance and compression deformation characteristics, ozone resistance, sunshine resistance, weather resistance is good. It has better wear resistance than nitrile rubber. Suitable for washing machinery, automobile engine system and refrigeration system using new environmental refrigerant R134a. Do not use in alcohols, esters or aromatic solutions. The general operating temperature range is -40~150 ℃.