The Application of Calcined Petroleum Coke in Brake Pads Production
In the production of brake pads, Calcined Petroleum Coke has become an increasingly important component, playing a crucial role in the composition of brake pads, especially in relation to the brake pads mixture, various brake pads mixes, and the essential brake pads friction materials.
1. Function and Mechanism
Calcined Petroleum Coke is mainly used in brake pads for its unique physical and chemical properties. It has high carbon content, which provides excellent heat resistance and wear – resistance characteristics to the brake pads friction materials. When incorporated into the brake pads mixture, it can improve the overall structure and performance of different brake pads mixes. During the braking process, the heat generated is dissipated effectively due to its high – temperature resistance property, and its wear – resistance helps maintain the shape and functionality of the brake pads over time.
2. Advantages
2.1 High – Temperature Resistance
Calcined Petroleum Coke can withstand temperatures up to 1200°C. In high – speed braking scenarios, when the temperature of brake pads can rapidly rise, this high – temperature resistance ensures the stability of the brake pads friction materials. For example, in a high – speed test where a vehicle decelerates from 200 km/h to a full stop in 20 seconds, the temperature of the brake pads can reach 800°C. The presence of Calcined Petroleum Coke in the brake pads prevents the materials from deforming or losing their frictional properties under such extreme heat.
2.2 Low Ash Content
It has an extremely low ash content, usually less than 0.5%. This low ash content is beneficial as it reduces the formation of abrasive particles during the braking process. Abrasive particles can cause uneven wear of the brake pads and the brake disc. With Calcined Petroleum Coke in the brake pads mixture, the wear rate of the brake pads can be reduced by about 30% compared to brake pads without it, extending the service life of both the brake pads and the brake disc.
2.3 High Graphitization Degree
The high graphitization degree of Calcined Petroleum Coke contributes to its excellent lubricating properties within the brake pads. This lubrication helps in reducing the noise generated during braking. In practical tests, brake pads containing Calcined Petroleum Coke produce 40% less braking noise compared to those without it, providing a more comfortable driving experience.
3. Disadvantages
3.1 High Cost
The price of Calcined Petroleum Coke is approximately 50% higher than some traditional materials used in brake pad production. This significantly increases the manufacturing cost of brake pads. For manufacturers who are cost – sensitive and aiming to produce budget – friendly brake pads, this high cost can be a major deterrent.
3.2 Limited Availability
The supply of high – quality Calcined Petroleum Coke is relatively limited. Geopolitical factors and the complexity of the refining process contribute to this. In some regions, the supply shortage can lead to production delays. For example, in the past year, due to supply chain disruptions, some brake pad manufacturers faced a 20% reduction in production capacity because of the unavailability of sufficient Calcined Petroleum Coke.
In conclusion, Calcined Petroleum Coke offers remarkable advantages in enhancing the performance of brake pads, but its high cost and limited availability pose challenges for the brake pad manufacturing industry. Manufacturers need to carefully evaluate these factors based on their production requirements and market positioning.