What are the materials of O-ring seals?

As a professional manufacturer of O-ring seals, today Xiaobian will introduce the material and some characteristics of O-ring seals.

Do you know what kind of rubber material the O-ring is made of?

O-type sealing ring is a kind of sealing product with simple structure, many specifications and great quantity. The sealing quality life of the O-ring depends on the dimensional accuracy and the rubber material. Generally, the adhesive material is required to have a certain mechanical strength, tear resistance, good heat resistance, oil resistance, chemical medium resistance, and small compression deformation under the conditions of use, which is the main index.

What material is the rubber material of the O-ring? The sealant of the sealing ring can actually be divided into many different materials according to the requirements of use and the working environment.

According to the requirements of customers, generally have heat resistance, oil resistance requirements, the use of rubber material to nitrile rubber. Acrylic rubber can be used for oil resistant sealing products requiring higher temperatures. Fluororubber for oil resistant rubber products requiring higher temperatures, and silicone rubber for heat resistance. When the working pressure is high, the way to increase the hardness of O-ring rubber material is to increase the filling amount of carbon black, but the filling amount is too high, it is difficult to mix, and damage the basic physical properties of vulcanized rubber, but also make the rubber material easy to char.

In the case of the use of the same rubber, such as nitrile rubber, in order to improve heat and oil resistance, reduce compression deformation, peroxide vulcanization system or effective sulfur vulcanization system can be used. These two vulcanization systems can generate more carbon-carbon bond crosslinked structure and single sulfur bond crosslinked structure, effectively improve the heat resistance and oil resistance of vulcanized rubber, and reduce compression deformation.

O-rings are often used for static and motion seals. When rotating motion seal, rotate the seal device at low speed. The 0 ring is mainly installed in a rectangular slot on the outer circle or inner circle section, mainly to achieve the effect of sealing.

Type 0 ring in oil, wear, acid, alkali, chemical erosion and other conditions can play a good sealing, shock absorption and other functions. Applied to a variety of mechanical equipment, but in the specified temperature and pressure, as well as different liquids and gases, often in the static or motion state to seal the effect. In machine tools, ships, automobiles, aerospace equipment, metallurgical machinery, chemical machinery, engineering machinery, construction machinery, mining machinery. As well as petroleum machinery, plastic machinery, agricultural machinery, and all kinds of instruments. A large number of various types of sealing parts.

If you are interested in the above silicone rubber products or have questions, please click to contact our online customer service or telephone union, Aobo silicone rubber – 22 years of focus on precision automotive medical silicon rubber products source manufacturers

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