Introduction to Truck Brake Shoes Carbon-Metallic Mixture
Truck brake shoes carbon-metallic mixtures are high-performance brake shoes friction materials engineered to balance durability, heat resistance, and braking efficiency for heavy-duty applications. Combining carbon fibers with metallic elements (e.g., steel, copper) and ceramic additives, this brake shoes formula ensures reliable performance under extreme conditions. Below is a detailed analysis of its composition, technical specifications, advantages, and storage guidelines.
Technical Parameters
The table below summarizes critical properties of carbon-metallic brake shoes mixes:
| Parameter | Specification | Remarks |
|---|---|---|
| Metallic Content | 30-50% (Steel, Copper) | Enhances thermal conductivity and structural integrity |
| Carbon Fiber Content | 15-25% | Reduces weight and improves heat dissipation |
| Friction Coefficient (μ) | 0.38-0.48 (Dry) | Stable across high-speed braking cycles |
| Operating Temperature | -40°C to 650°C | Minimizes thermal fade and glazing |
| Compressive Strength | ≥280 MPa | Resists deformation under hydraulic pressure |
| Wear Rate | ≤0.4 cm³/MJ | Extends service life to 80,000–200,000 km |
| Shore Hardness | 65-80 Shore D | Optimized for drum and disc compatibility |
Key Advantages
- Superior Heat Management
The brake shoes mixture leverages carbon fibers and metallic matrices to dissipate heat rapidly, preventing brake fade during prolonged downhill braking . - Enhanced Durability
Reinforced with steel fibers and ceramic additives, the brake shoes friction materials exhibit exceptional wear resistance, even in abrasive environments . - Noise and Vibration Reduction
Graphite and ceramic particles in the brake shoes formula dampen vibrations, reducing squeal and ensuring quieter operation . - Environmental Adaptability
Operates reliably in extreme temperatures (-40°C to 650°C), making it suitable for diverse climates and heavy-load scenarios . - Compliance with Standards
Certified under ISO/TS 16949 and E-Mark R90, ensuring safety and performance consistency .
Storage and Packaging
- Moisture Protection: Packaged in vacuum-sealed, anti-oxidation materials to prevent corrosion of metallic components .
- Temperature Limits: Store in dry environments between -10°C and 40°C; avoid direct sunlight .
- Stacking Guidelines: Maximum stacking height of 6 layers to prevent deformation of friction linings .
- Shelf Life: 18–24 months in unopened, original packaging .
Application of Brake Shoes Mixes
The brake shoes mixes are molded under high-pressure sintering (20–35 MPa) to ensure uniform bonding between the friction layer and shoe plate. Post-production testing includes shear strength validation (≥3.8 MPa) and thermal cycling simulations to guarantee robustness . For OEMs or aftermarket suppliers, the brake shoes formula can be customized to meet specific load capacities or regional regulatory requirements .
By integrating carbon fiber’s lightweight properties with metallic durability, this advanced friction material delivers unmatched braking reliability for commercial trucks operating in demanding environments.