In the intricate domain of brake pads manufacturing, Chalcopyrite Powder has carved out a significant role within the brake pads mixture. This mineral powder, with its distinct chemical and physical properties, exerts a profound influence on diverse brake pads mixes and is a crucial element in the composition of brake pads friction materials.

Chalcopyrite Powder, chemically represented as CuFeS₂, is integrated into brake pads due to its unique traits. Its relatively high hardness is a boon for enhancing the wear – resistance of brake pads friction materials. Once blended into the brake pads mixture, it bolsters the overall mechanical strength of the friction material. During the braking process, the chalcopyrite particles in the mix act as a shield against the abrasive forces from the brake disc, effectively reducing the wear rate of the brake pads. Moreover, its electrical conductivity aids in dissipating the electrostatic charge generated during braking, thus maintaining stable braking performance. Research data shows that under a braking force of 600 N, after 800 braking cycles, the wear depth of brake pads with chalcopyrite powder is 0.3 mm less than those without it.

Chalcopyrite Powder remarkably boosts the wear – resistance of brake pads. In a standardized wear – test, after 1500 braking operations, the mass loss of brake pads with chalcopyrite powder is merely 6 grams, while traditional brake pads without it experience a mass loss of 10 grams. This enhanced durability extends the service life of brake pads, saving vehicle owners from frequent replacements and slashing maintenance costs.

It showcases outstanding thermal stability. Even when the braking temperature surges to 600°C, the mechanical properties of brake pads friction materials with chalcopyrite powder remain fairly stable. In contrast, brake pads without it may witness a 30% drop in the friction coefficient under the same high – temperature circumstances. This thermal resilience ensures consistent braking performance during high – speed or extended braking scenarios.

As a common copper – iron sulfide mineral, chalcopyrite offers an abundant raw material source. This abundance renders it a cost – effective choice for brake pad manufacturers. The acquisition cost of chalcopyrite powder is approximately 50% lower than that of some rare – earth – based additives used in brake pads, facilitating large – scale production and efficient cost – control in the brake pad industry.

Despite its benefits for brake pads, chalcopyrite powder has a relatively high abrasiveness towards brake discs. In a braking test, after 1500 braking operations, the surface roughness of the brake disc paired with brake pads containing chalcopyrite powder increases by 0.7 Ra, while that paired with non – chalcopyrite – containing brake pads only increases by 0.4 Ra. This elevated abrasiveness can lead to a shorter lifespan of the brake disc and higher replacement expenses for users.

Chalcopyrite’s sulfur content poses potential corrosion risks in the braking system under specific environmental conditions. In a humidity – corrosion test, at a relative humidity of 90% and a test duration of 40 days, the brake pads and related components in contact with chalcopyrite – containing friction materials exhibit signs of corrosion, while those with non – sulfur – containing friction materials remain in a better state. This corrosion risk necessitates additional anti – corrosion measures in the design and utilization of the braking system.

In summary, Chalcopyrite Powder brings several advantages like high wear – resistance, excellent thermal stability, and an abundant raw material source to brake pad production. However, its high abrasiveness to brake discs and potential corrosion issues must be addressed. Future research should be centered on minimizing these drawbacks while maximizing the utilization of chalcopyrite powder in brake pads.