Introduction to Big Flake Graphite in Brake Linings Formulas
Big Flake Graphite is a high-performance additive in brake linings mixtures, renowned for its exceptional thermal stability and structural reinforcement in Brake Linings Friction Materials. Its large particle size and layered morphology make it indispensable for optimizing friction behavior and durability in Brake Linings Mixes. Below is a technical overview, including specifications, advantages, and storage protocols.
Technical Parameters of Big Flake Graphite in Brake Linings Formula
| Property | Specification | Test Method |
|---|---|---|
| Carbon Content | ≥99% | ASTM C561 |
| Particle Size (μm) | 100-500 (adjustable for formulation) | Laser Diffraction |
| Bulk Density (g/cm³) | 0.7-1.0 | ASTM B212 |
| Thermal Conductivity | 130-160 W/m·K | ASTM E1461 |
| Friction Coefficient | 0.3-0.4 (dry to wet transition) | SAE J661 |
| Heat Resistance | Up to 650°C | ISO 26865 |
Advantages of Big Flake Graphite in Brake Linings Formula
- Superior Heat Dissipation:
The large flake structure enhances thermal conductivity, effectively reducing localized overheating and preventing brake fade during prolonged use. - Enhanced Friction Moderation:
Acts as a dual-functional material in Brake Linings Ingredients, providing lubrication at low temperatures and increasing friction stability at high temperatures. - Mechanical Reinforcement:
Improves the structural integrity of brake linings friction materials by forming interlocking networks, reducing crack propagation under stress. - Compatibility with Hybrid Systems:
Blends seamlessly with resins, ceramic fibers, and metal powders in brake linings mixes, ensuring uniform distribution and balanced performance.
Storage and Packaging Guidelines
To maintain the quality of Big Flake Graphite in brake linings formula:
- Packaging: Use laminated polyethylene-lined bulk bags (1-ton capacity) or moisture-resistant sealed paper bags.
- Storage Conditions:
- Temperature: <35°C
- Humidity: <55% RH
- Avoid stacking heavy items on bags to prevent particle fragmentation.
- Shelf Life: 18-24 months in unopened, dry environments.
Key Applications in Brake Linings Mixtures
Big Flake Graphite is commonly integrated with:
- Binders: Phenolic resins or rubber-based adhesives.
- Reinforcements: Aramid fibers, steel wool.
- Abrasives: Alumina, zirconium silicate.
This combination ensures a robust brake linings formula that meets stringent OEM requirements for noise reduction, wear resistance, and environmental compliance.
For detailed procurement or technical specifications, refer to suppliers specializing in industrial graphite.