What are the main rubber products in the car

Jul 19,2023

Auto rubber parts to explain to you what are the main rubber products in the car

The rapid development of China's automobile industry promotes the development of other related supporting industries in my country, especially the rubber industry. In the past few years, automotive rubber products have developed into a unique and specialized product industry. Automotive rubber products are an indispensable and important component in auto parts. There are about 100-200 kinds of rubber products installed on each car, and about 200-500 rubber parts are used. Except for tires, the rubber material consumed is about 15-60 kg depending on the specifications of the car, and automotive rubber products (excluding tires) account for about 6% of the total cost of the car. There are more than 1,000 varieties of non-tire rubber products used in the automotive industry, with more than 8,000 specifications. According to statistics, the automotive industry accounts for more than 70% of the world's annual consumption of raw rubber, of which tires account for 60% and auto rubber parts account for 40%.

High speed, safety, comfort, energy saving and environmental protection are the goals pursued by contemporary automobiles. With the development of automobile modernization, the requirements for automobile rubber products are becoming more and more strict and demanding. Not only rubber materials with various special properties are required to meet the new technical requirements of automobiles, but also rubber materials are required to have higher physical and mechanical properties, such as aging resistance, high and low temperature resistance, new fuel resistance, excellent dynamic fatigue performance, and durable service life. In fact, every high performance of modern automobiles must be guaranteed by the technological progress of rubber products. The performance and quality of automobile rubber products play an extremely critical role in improving the quality of automobiles. It is worth pointing out that the role played by rubber products is always an accessory, but this accessory always affects the technological progress and technical level of the host. Therefore, it can be said that the technology and quality of automobile rubber products can basically reflect the technical level of automobiles.

Rubber products in automobiles mainly include various hoses, tapes, oil seals, sealing strips, shock absorbers, leather bowls, dust covers, fenders, wipers, gaskets, air springs, tires, etc. The following introduces the main rubber products:

A tire

Tires are ground-rolling circular elastic rubber products assembled on various vehicles or machinery. Tires are often used under complex and harsh conditions. They bear various deformations, loads, forces, and high and low temperatures when driving, so they must have high bearing performance, traction performance, and cushioning performance. At the same time, it is also required to have high wear resistance and flexibility resistance, as well as low rolling resistance and heat generation. Half of the world's rubber consumption is used in tire production, which shows the ability of tires to consume rubber. Automobile outer tires generally use: natural rubber + styrene-butadiene rubber + butadiene rubber (different proportions), and inner tires generally use butyl rubber.

Two sealing products

A. Sealing strip

The car sealing strip has the function of filling various intermittents and gaps between the body components. It has the functions of shock absorption, waterproofing, dustproof, sound insulation, decoration, etc., to improve the comfort of the driving experience and protect the car body. The sealing strip mainly uses EPDM rubber, and the sealing strips are classified as follows:

Engine cover sealing strip (HOOD), which can be divided into front, side and rear;

Door frame sealing strip (DOORSEAL);

Front and rear wind window sealing strip (WINDOWSCREEN);

Side window sealing strip (SIDEWINDOWSEALING);

Skylight sealing strip (SUNROOFSEALING);

Door head seal (PRIMARYDOORSEAL);

Window guide groove sealing strip (GLASSRUNCHANNEL);

Inner and outer strips (water cut) (WAISTLINE);

Luggage sealing strip (TRUNKSEAL);

Anti-noise sealing strip (ANTI-NOISE);

Dust strips (ANTI-DUST), etc.

B. Automotive rubber parts and other sealing products

Mainly used to prevent the leakage of liquid or other materials, including bag skeleton oil seal, O-ring, rotary shaft oil seal, dust cover, flat sealing gasket, brake leather bowl, leather film and various gaskets. These products rely on the high elasticity, recoverability, large deformation, air tightness and viscoelasticity of the rubber macromolecule itself to play a role. They are an irreplaceable special part in automobiles. They play the roles of sealing, vibration reduction, sound insulation, braking, etc., and play an important role in the comfort and safety of normal driving and driving of the automobile.

Three shock absorption products

Rubber accessories used to prevent or reduce various vibrations and noises generated by automobiles during driving. According to their use parts, they can be divided into seven categories: engine series, drive device, control device, front and rear suspension, body, exhaust system and other systems. Its main function is to absorb and reflect the vibration energy generated by the vibration source and prevent the resonance effect generated by the vibration wave. Generally, natural rubber and neoprene are used. Nitrile rubber is required for oil resistance, silicone rubber is required for high and low temperature resistance, and butyl rubber is required for high damping. In recent years, the demand for vibration damping rubber products for automobiles has been increasing. Due to the different parts used, the types of rubber used are also different. From the perspective of vibration reduction, nitrile rubber and butyl rubber should be selected; from the perspective of fatigue resistance and creep performance, natural rubber should be selected; if its heat resistance is to be improved, styrene-butadiene rubber should be selected; if it is in contact with various oil media during work, nitrile rubber should be selected; for engines and exhaust pipes with higher temperatures, EPDM rubber with high heat resistance is required.

Four hose products

Hose products are used in the three major parts of the chassis, engine and body. They are used for hoses in seven systems of oil, gas, drive, control, brake, cooling and heating, and play the role of oil supply, gas supply, water supply and power transmission. The varieties of hoses include fuel hoses, water transmission hoses, brake hoses, vacuum hoses, air conditioning hoses, radiator hoses, power steering hoses and special-shaped branch hoses.

With the development of automobiles in the direction of high speed, high functionality and comfort,. With the development of automobiles in the direction of high speed, high functionality and comfort.

Five car drive belt

Automobile transmission belts generally include V belts and timing belts. V belts, also known as V belts, are the products with the largest output, the largest variety and the widest range of uses in transmission belts. Timing belt drive is composed of a ring belt with equal spacing teeth on the inner peripheral surface and wheels with corresponding matching. From the materials used, timing belts can be divided into two categories: rubber type and polyurethane type, and the former is divided into ordinary rubber (usually neoprene rubber) and special rubber (mostly saturated nitrile rubber).

Other products

This type of rubber products includes automotive rubber sheets (interior floor rubber panels and fenders), automotive interiors and adhesives, sealants, etc. Floor glue is used to lay the interior floor, which is shockproof and non-slip. Wiper rubber strips are used to remove rain and snow from the windshield in rainy and snowy weather, and automotive rubber accessories ensure the driver's line of sight and normal operation, as well as the normal driving of the vehicle. Adhesives are used for bonding automotive interior materials and protecting the bottom of the car.