The Application of Steel Wool in Brake Shoes Production
In the intricate process of brake shoes manufacturing, Steel Wool has emerged as a notable component in brake shoes mixtures and mixes, particularly within brake shoes friction materials. This unique material endows brake shoes with a set of characteristics that have both positive and negative implications for their performance.
Advantages
1. High Friction and Durability
Steel Wool is renowned for its ability to enhance the friction properties of brake shoes. When added to the brake shoes mixture, it significantly increases the coefficient of friction. Laboratory tests indicate that with a 15% addition of Steel Wool in the brake shoes friction materials, the friction coefficient can rise from an average of 0.38 to 0.48 under normal braking conditions. This boost in friction ensures more efficient braking, allowing vehicles to stop in a shorter distance.
Moreover, Steel Wool contributes to the durability of brake shoes. In a long – term wear test, brake shoes with Steel Wool – reinforced friction materials showed a wear rate of only 0.12 mm per 10,000 braking cycles, compared to 0.18 mm for those without Steel Wool. This results in a longer – lasting product, reducing the frequency of brake shoe replacements.
2. Good Thermal Conductivity
During braking, heat is generated due to the friction between the brake shoes and the brake disc. Steel Wool has excellent thermal conductivity, which enables efficient heat dissipation. In a high – speed braking experiment, the temperature of brake shoes with 10% Steel Wool in their friction materials rose by 70°C, while that of non – Steel Wool – containing brake shoes increased by 100°C. This effective heat management helps to prevent brake fade, maintaining consistent braking performance even under extreme conditions.
3. Mechanical Strength Reinforcement
Steel Wool can reinforce the mechanical strength of the brake shoes mixture. It acts as a reinforcing agent, making the brake shoes more resistant to mechanical stress during the braking process. In a mechanical stress test, brake shoes with Steel Wool – enhanced friction materials were able to withstand 30% more stress before showing signs of damage compared to those without it.
Disadvantages
1. Corrosion Susceptibility
One of the major drawbacks of Steel Wool is its susceptibility to corrosion. In a humid environment, Steel Wool in the brake shoes friction materials can corrode over time. In a corrosion test, after being exposed to a humid environment (80% relative humidity) for 6 months, the friction – enhancing performance of Steel Wool in the brake shoes mixture decreased by about 15 – 20%. Special anti – corrosion treatments, such as coating or adding corrosion inhibitors, are often required to mitigate this issue.
2. High – Cost Factor
Steel Wool is relatively more expensive than some common materials used in brake shoes production. Incorporating it into brake shoes mixtures can increase the production cost by approximately 10 – 15%. This cost increase may limit its widespread use, especially for manufacturers aiming for cost – effective products.
In conclusion, Steel Wool offers significant advantages in terms of friction, durability, thermal conductivity, and mechanical strength in brake shoes production. However, its corrosion susceptibility and high – cost nature pose challenges that need to be carefully considered and addressed through appropriate technological and cost – management strategies.