Why Charge Air Cooler (CAC) Silicone Hose can withstand pressures up to 10 bar?

In high-performance engines and automotive supercharged systems, Charge Air Cooler (CAC) silicone hoses play a vital role. Not only do they need to withstand extremely high temperatures, they also need to maintain excellent pressure resistance under extreme working conditions. Especially when CAC silicone hoses need to withstand pressures up to 10 bar, their design, materials, and manufacturing processes must be strictly considered.

1. Silicone is a high-performance synthetic rubber with excellent high temperature resistance, oxidation resistance, and chemical corrosion resistance. These characteristics make silicone an ideal hose material for CAC systems. Under high temperature conditions, silicone can maintain good elasticity and stability, and is not prone to hardening or embrittlement. At the same time, silicone's chemical corrosion resistance can effectively resist the erosion of chemicals such as fuel and lubricating oil, ensuring that the hose will not fail due to chemical corrosion during long-term use. In terms of pressure resistance, silicone has a moderate elastic modulus and can undergo a certain deformation when subjected to pressure, thereby effectively dispersing the pressure. In addition, silicone has a high elongation at break, and can maintain a high strength even under extreme conditions, ensuring that the hose will not break due to excessive pressure.

2. CAC silicone hoses usually adopt a multi-layer structure design, which is composed of an inner rubber layer, a reinforcement layer and an outer rubber layer from the inside to the outside. The inner rubber layer is in direct contact with the fluid and needs to have good sealing and corrosion resistance; the reinforcement layer uses high-strength fiber materials, such as polyester fiber or glass fiber, to improve the pressure resistance of the hose; the outer rubber layer plays a protective role to prevent the hose from being eroded by the external environment. The multi-layer structure design enables the CAC silicone hose to form a stable support system when it is under pressure, and the layers cooperate with each other to bear the pressure together. This structural design not only improves the pressure resistance of the hose, but also makes the hose less prone to fatigue and aging in long-term use.

3. The manufacturing process of CAC silicone hoses requires multiple precision processes. First, high-quality silicone materials need to be selected and strictly inspected and screened. Then, the silicone material is processed into the required shape and size through precise mold design and molding process. During the manufacturing process, the hose also needs to be subjected to post-processing processes such as high-temperature vulcanization to improve its temperature resistance and stability. In addition, the connection part of the CAC silicone hose also needs to be specially treated. Usually, special connection methods such as clamp connection or threaded connection are used to ensure that the connection between the hose and other components is firm and reliable, and to avoid leakage and other problems under high pressure.

4.CAC silicone hoses are usually used in high-performance engines and automotive supercharging systems, which have extremely harsh working conditions. In extreme environments such as high temperature, high pressure, and high vibration, CAC silicone hoses need to maintain stable performance to ensure the normal operation of the system. Therefore, CAC silicone hoses need to consider these extreme working conditions when designing, and take corresponding measures to ensure that they can withstand pressures up to 10 bar.