Features and applications of various automotive

by:DSH     2019-06-12

Rubber seal specifications are also known as sealing strip, can improve the function of air tightness. Dongsheng seal tells you that the automobile seal rubber strip is one of the important auxiliary parts in the automobile industry. it is widely used in parts such as window, door, body, Skylight, seat, engine box and trunk, it can also produce rubber hinges for the door of the passenger car luggage bin. the sealing strip has the functions of waterproof and sealing, which can prevent the wind and rain from invading the car in the environment. Many users don't know much about the types and functions of automobile sealing strips. the following introduces the classification of automobile sealing strips:

Rubber Sealing Strip

Vulcanization rubber sealing strip has ozone resistance and excellent weather resistance. its material has good high temperature resistance and low temperature performance, outstanding chemical resistance, ability to various polar solutes and low relative density. The disadvantage is that there is a large amount of expansion in mineral oil and lubricating oil.

Silicone rubber sealing strip

The sealing strip has outstanding performance, some of which are hydrophobic and appropriate air permeability, high and low temperature resistance, ozone resistance and weather resistance. The more critical thing has insulation performance, which can meet the hygiene level of food hygiene requirements and meet the various requirements of users for color. The disadvantage is that the strength of the mechanical engineering is poor in the rubber material and is not oil resistant. It is suitable for high temperature, cold, strong ultraviolet radiation and medium and high-rise buildings.

Neoprene sealing strip

Its performance is poor compared with other rubber, but the total performance is balanced. It has excellent weather resistance, ozone resistance, heat-resistant aging and oil-resistant solvent resistance, good chemical resistance and excellent combustion resistance, and good adhesion. The storage stability is poor, and the hardening phenomenon will occur during the storage process, and the cold resistance is not good. The seal is relatively dense, and the color is generally black. It is used in working conditions with oil resistance, heat resistance and acid and alkali resistance requirements.

Rubber Sealing Strip NBR

The main features are oil resistance and solvent resistance, but they are not resistant to ketone, Ester and hydrocarbon chloride, and the elastic and mechanical properties are very good. The disadvantage is that it is easy to age and crack in ozone and oxidation, and has poor cold resistance and low temperature resistance.

Sealing Strip of thermoplastic elastomer

It has good elasticity and excellent wear resistance, good oil resistance, superior mechanical properties (tensile strength, elongation at break), excellent cold resistance and chemical resistance, the cost of raw materials is high. Materials that can be recycled and reused. It is suitable for areas with strong vibration such as multiple areas, near railways or factories with high-power cranes, as well as areas with strong ultraviolet radiation.

Sealing Strip of thermoplastic vulcanization glue

The thermoplastic vulcanization sealing strip has the flexibility and elasticity of rubber. it can be produced by plastic processing method without vulcanization. the waste material can be recycled and reused. It is a material with a wide range of properties. it has good heat resistance and cold resistance, low relative density, similar oil resistance and solvent resistance to neoprene, and is not good for compression deformation and wear resistance. Suitable for cold, medium and high-rise buildings.

Reinforced plastic PVC sealing strip

The sealing strip material is cheap, has corrosion resistance, wear resistance, acid and alkali resistance and various chemical Media, is resistant to combustion and has high mechanical strength. The disadvantage is that the plasticizer in the system is easy to migrate and becomes hard and brittle with the extension of time, loss of elasticity, aging resistance, poor weather resistance and low temperature performance. Generally Dark products. It is suitable for occasions where light is not strong, temperature changes are not large, and climate conditions are not bad.

Surface coating material

The surface coating material is coated with polyurethane, silicon, PTFE and other substances on the surface of the sealing strip to replace the surface flocking of the traditional process. The coated sealing strip has good wear resistance and smoothness, especially the sealing strip after coating the silicone surface coating. the surface friction coefficient is small, which is conducive to the sliding of door and window fans. Suitable for doors and windows with sliding doors, window fans.

Features and applications of various automotive sealing strip materials?

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