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Dongguan Minz Rubber & Plastics Co., Ltd.

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Characteristics and material of rubber sealing ring

Release time:

2019-05-25 12:30

Source:

Rubber seal ringFeatures and materials
 
 
Used to be installed on various mechanical equipment, in the specified temperature and pressure and different liquids and gases, in the static or moving state from the sealing role
Material Analysis of Rubber Sealing Ring
 
1, fluorine rubber: high temperature resistance, can be used in -30 ℃- 250 ℃ environment, strong oxidant resistance, oil resistance, acid and alkali resistance. Usually used in high temperature, high vacuum and high pressure environment, suitable for oil environment. Due to its excellent performance, fluorine rubber is widely used in petroleum, chemical, aviation, aerospace and other departments.
 
2. Silicone rubber: It has outstanding high and low temperature resistance, maintains good elasticity in the temperature range of -70 ℃- 260 ℃, and has the advantages of ozone resistance and weather aging resistance. It should be used as a sealing gasket in thermal machinery. Because there is no toxicity can make insulation, insulation products and medical rubber products.
 
3, nitrile rubber: has excellent resistance to oil and aromatic solvents and other properties, but not resistant to ketones, esters and chlorinated and other media, so oil-resistant sealing products to use nitrile rubber.
 
4, chloroprene rubber: has good oil resistance, solvent resistance, chemical media and other properties, but not resistant to aromatic oil, which is characterized by weather resistance and ozone aging excellent performance. In production, neoprene is usually used to make door and window sealing strips and diaphragms and general vacuum sealing products;
 
5. EPDM: It has good temperature resistance, weather resistance and ozone aging performance. It is usually the most widely used in door and window sealing strips and automobile industry.
 
6. PTFE composite gasket is a new type of sealing material composed of PTFE and high-quality rubber, using special production technology. It combines the excellent characteristics of PTFE and rubber, so that the product has excellent corrosion resistance, high temperature resistance, non-toxic, anti-adhesive, and has good elasticity and sealing.
 
Common rubber seal ring classification of seal knowledge

The most commonly used sealing element in the seal is the rubber sealing ring. The classification of the rubber sealing ring is usually divided according to its main material, characteristics and form of movement.
 
1. Classification by material
 
Different sealing rings are divided by different materials, and nitrile rubber sealing rings are usually used. Other common materials such as silicone rubber seals, fluorine rubber seals, etc.
 
2. Classification according to sealing ring characteristics
 
This classification is mainly a combination of the use of sealing conditions and materials to divide. It can be divided into high temperature resistant sealing ring, low temperature resistant sealing ring, high pressure resistant sealing ring, wear resistant sealing ring, corrosion resistant sealing ring, etc.
3. Classified according to its form of movement

Usually there are two types of movement, namely dynamic seal and static seal. A static seal is a seal on two stationary surfaces. The most widely used O-ring in the sealing ring is mainly used in static sealing, followed by gasket sealing. In the dynamic seal, according to the sealing ring and its relative movement of the parts whether there is contact can be divided into contact seal and non-contact seal. Wherein, the rubber sealing ring is a contact sealing manner. Usually in the dynamic seal, the common form of rubber sealing ring rotary shaft lip seal ring and reciprocating movement seal ring.

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Silicone products: application in the field of electronic components

The role of o-ring

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The role of o-ring

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What are the molding techniques of rubber products?

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How to print the pattern on the transparent key

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