Introduction to Big Flake Graphite in Brake Shoes Formulas
Big Flake Graphite, a high-purity crystalline form of carbon with a layered structure, is a critical component in brake shoes formulas due to its exceptional thermal stability, lubricating properties, and friction-modifying capabilities. Widely used in Brake Shoes Friction Materials, it enhances performance while ensuring durability and safety in demanding braking conditions.
Technical Parameters
The following table summarizes key technical properties of Big Flake Graphite in brake applications:
| Parameter | Value/Range |
|---|---|
| Particle Size | 50–200 μm (flake diameter) |
| Carbon Content | ≥ 98% |
| Thermal Conductivity | 150–400 W/(m·K) |
| Ash Content | ≤ 2% |
| Density | 2.09–2.23 g/cm³ |
| Oxidation Resistance | Stable up to 450°C in air |
Advantages in Brake Shoes Mixes
- Enhanced Friction Stability: Big Flake Graphite maintains a consistent friction coefficient across varying temperatures, reducing brake fade in brake shoes friction materials.
- Thermal Management: Its high thermal conductivity dissipates heat efficiently, preventing localized overheating in the Brake Shoes Mixture.
- Wear Reduction: Acts as a solid lubricant, minimizing abrasive wear between contact surfaces in brake shoes mixes.
- Noise Dampening: Reduces squeal and vibration by smoothing friction transitions in the Brake Shoes Formula.
- Chemical Inertness: Resists oxidation and degradation, ensuring long-term stability in Brake Shoes Ingredients.
Storage and Packaging
Proper handling ensures optimal performance:
- Storage: Store in a dry, cool environment (<30°C, humidity <60%) to prevent moisture absorption. Avoid direct sunlight or corrosive gases.
- Packaging: Typically supplied in 25 kg multi-layer kraft paper bags with polyethylene liners or sealed fiber drums. Labels must include batch number, purity, and safety data.
- Handling: Use dust-control measures during processing to avoid inhalation risks.
Role in Brake Shoes Formula Design
In brake shoes mixes, Big Flake Graphite is blended with binders (e.g., phenolic resins), reinforcing fibers (e.g., aramid), and abrasives (e.g., alumina) to create a balanced brake shoes mixture. Its flake morphology improves particle alignment, enhancing mechanical strength and thermal resilience.
Conclusion
Big Flake Graphite is indispensable in modern brake shoes formulas, offering a synergistic combination of thermal management, friction control, and durability. By integrating this material into brake shoes ingredients, manufacturers achieve high-performance braking systems suited for automotive, industrial, and heavy-duty applications.