What are the effects of temperature on the performance of raw-edge v belts

The impact of temperature on Raw-Edge V Belts (primary V belt) is mainly reflected in the changes in material characteristics and its impact on transmission performance. Raw-Edge V Belts are usually made of composite materials such as rubber, fiber and metal, and the properties of these materials vary significantly under different temperature conditions. Rubber, as one of the core components of the transmission belt, has excellent elasticity and wear resistance. However, as the temperature increases, the molecular chain movement of the rubber material accelerates, resulting in a decrease in hardness, weakening of strength and decreasing wear resistance. This change makes the drive belt more prone to deformation and wear during operation, thereby reducing its transmission efficiency and service life.

The impact of temperature on fiber materials cannot be ignored. The fiber materials in Raw-Edge V Belts are mainly used to enhance the strength and wear resistance of the drive belt, but in high temperature environments, the strength and elastic modulus of these fibers will be significantly reduced, resulting in a decrease in the overall performance of the drive belt. In addition, fiber materials may undergo pyrolysis and oxidation reactions at high temperatures, releasing harmful gases and particulate matters, which in turn causes potential pollution to the transmission system and the environment.

In addition to changes in material properties, temperature also has a direct impact on the transmission efficiency and stability of Raw-Edge V Belts. When the temperature rises, the friction coefficient between the transmission belt and the pulley changes, resulting in a decrease in transmission efficiency. At the same time, high temperatures will cause uneven stress distribution within the transmission belt, causing unstable vibration and noise, which further affect the overall performance and reliability of the transmission system.

In practical applications, Raw-Edge V Belts are often in extreme temperature environments. For example, in the engine compartment of a car, the transmission belt needs to withstand high temperatures up to hundreds of degrees Celsius, while in cold areas it needs to adapt to low temperatures of several dozen degrees Celsius. These extreme temperatures present a serious challenge to the performance of Raw-Edge V Belts.

To cope with the impact of temperature on the performance of Raw-Edge V Belts, the designers and manufacturers of drivetrains must take a series of effective measures. First of all, when selecting materials, materials with excellent high temperature and low temperature resistance should be given priority, such as high-temperature rubber, high-strength fibers and corrosion-resistant metals. These materials can maintain stable physical properties under extreme temperature environments, thereby effectively extending the service life of the drive belt.

Secondly, in terms of the design of the drive belt, its structure and size need to be optimized to reduce heat accumulation and stress concentration during the transmission process. For example, a multi-layer structure can be adopted to enhance the strength and wear resistance of the drive belt, while reducing friction and wear of the drive belt during operation by reasonably designing the size and shape of the pulleys. In addition, appropriate cooling measures and lubrication techniques can also be introduced to further improve the thermal management capabilities of the drive belt.