Automotive rubber parts in the automotive industry represent the core application area of rubber-metal bonding technology, and the technical efficiency of this technology directly affects the performance and reliability of the entire vehicle. At the connection point between the power system and the body, the Rubber damper of the engine suspension component, through a composite structure of high-strength rubber and metal framework, plays a crucial role in vibration isolation and noise attenuation. According to industry standards, these high-performance suspension products, when meeting the ISO 10846 vibration testing specifications, can have a design service life of 5 to 7 years, or a cumulative mileage of 60,000 to 100,000 kilometers.
In the chassis suspension system, key components such as the triangular arm bushing and suspension arm rubber support also rely on rubber-metal bonding technology. Volvo significantly improved the fatigue resistance of the bushing by using polyurethane-based elastomer materials. Mercedes-Benz, through innovative design of a multi-layer lubrication structure, effectively enhanced the dynamic durability of the components.
These components need to withstand complex alternating stresses, extreme temperature changes ranging from -40°C to 150°C, and long-term erosion from chemical media such as fuel and lubricating oil. Their performance directly affects the vehicle's handling stability and the noise, vibration, and acoustic NVH level. In terms of process selection, both hot vulcanization and cold vulcanization have their advantages. Rubber damper hot vulcanization forms chemical bonds through high-temperature and high-pressure, with high bonding strength and good wear resistance, suitable for high-load environments, but the equipment cost is higher and the process is more complex. Cold vulcanization is simple to operate, fast to construct, and has a lower cost, but its bonding strength and aging resistance are relatively weaker. Manufacturers need to choose the most suitable process scheme based on the specific application scenario.