White Rock Wool has emerged as a notable material in the manufacturing of brake shoes, finding its place within brake shoes mixtures and mixes, especially in the composition of brake shoes friction materials. This article delves into the application of White Rock Wool in brake shoes production, highlighting its advantages and disadvantages while presenting relevant technical parameters.

White Rock Wool is renowned for its remarkable high – temperature resistance. It can endure temperatures of up to 1200°C without significant degradation. In brake shoes, during intense braking, the friction materials can experience extreme heat. Brake shoes with 15% White Rock Wool in their friction materials were tested under high – speed braking scenarios. When the temperature soared to 800°C, the structure of the friction materials remained intact. The friction coefficient maintained a stable value between 0.4 and 0.45, ensuring consistent and reliable braking performance.

It exhibits excellent sound – dampening properties. Braking operations often generate noise due to the friction between brake components. Incorporating White Rock Wool into the brake shoes mixture can effectively reduce this noise. Laboratory tests reveal that brake shoes with White Rock Wool can lower braking noise by 10 – 15 decibels compared to those without it. This results in a quieter and more comfortable driving experience.

From a cost perspective, White Rock Wool is a relatively cost – effective option. Using it in brake shoes mixtures can reduce the overall production cost by approximately 15 – 20%. This cost – saving advantage makes it an appealing choice for brake shoe manufacturers, especially when large – scale production is involved.

One of the main drawbacks of White Rock Wool is its brittleness. During the manufacturing process of brake shoes, the brittleness can cause challenges in shaping the brake shoes mixture. For example, in the pressing stage, the White Rock Wool – containing mixture is 40% more likely to develop cracks compared to mixtures without it. In actual use, the brittle nature may lead to the detachment of small particles from the brake shoes friction materials. In a long – term wear test, brake shoes with White Rock Wool – based friction materials showed a 30% higher rate of particle shedding.

White Rock Wool has relatively low abrasion resistance. In a wear – resistance test, brake shoes with White Rock Wool – based friction materials wore down at a rate of 0.3 – 0.4 mm per 10,000 braking cycles. In contrast, brake shoes made with more abrasion – resistant materials had a wear rate of only 0.1 – 0.2 mm per 10,000 cycles. This higher wear rate means that brake shoes with White Rock Wool may require more frequent replacements, increasing maintenance costs.

In conclusion, White Rock Wool offers distinct advantages such as high – temperature stability, sound dampening, and cost – efficiency in brake shoes production. However, its brittleness and limited abrasion resistance are factors that need to be carefully addressed through proper material engineering and manufacturing techniques.