Introduction to Truck Brake Linings Carbon-Metallic Mixture
Truck brake linings carbon-metallic mixtures represent a high-performance brake linings friction material engineered to deliver exceptional braking efficiency, thermal stability, and longevity for heavy-duty vehicles. This advanced brake linings formula combines carbon fibers, metallic components (e.g., steel, copper), and ceramic additives, ensuring reliable performance under extreme operational conditions. Below is a detailed breakdown of its composition, technical specifications, advantages, and storage guidelines.
Technical Parameters
The table below summarizes key properties of carbon-metallic brake linings mixes:
| Parameter | Specification | Remarks |
|---|---|---|
| Carbon Fiber Content | 20-35% | Enhances heat dissipation and reduces weight |
| Metallic Content | 40-55% (Steel, Copper) | Improves thermal conductivity and wear resistance |
| Density | 2.8-3.4 g/cm³ | Optimizes strength-to-weight ratio |
| Friction Coefficient (μ) | 0.38-0.48 (Dry) | Stable across -40°C to 650°C temperature range |
| Operating Temperature | -40°C to 650°C | Resists thermal fade and degradation |
| Wear Rate | ≤0.4 cm³/MJ | Extended service life under heavy loads |
| Compressive Strength | ≥280 MPa | Withstands high hydraulic pressure |
| Water/Oil Resistance | Grade A (ISO 6312) | Maintains performance in humid or oily environments |
Key Advantages
- Superior Heat Management
Carbon fibers and metallic components synergize to dissipate heat rapidly, minimizing brake fade during prolonged braking . - Enhanced Durability
The brake linings formula integrates steel fibers and ceramic additives, reducing wear rates by 25-30% compared to traditional materials . - Consistent Friction Performance
Stable friction coefficients ensure reliable braking across diverse conditions, from icy roads to steep descents . - Lightweight Design
Carbon fiber reinforcement reduces overall weight by 15-20%, improving fuel efficiency without compromising strength. - Corrosion Resistance
Anti-oxidation additives protect metallic elements, extending shelf life and operational reliability .
Storage and Packaging
- Moisture Control: Packaged in vacuum-sealed, moisture-proof materials to prevent oxidation of metallic components .
- Temperature Limits: Store at 0°C–35°C; avoid prolonged exposure to direct sunlight or freezing conditions .
- Stacking: Maximum stacking height of 5 layers to prevent deformation.
- Shelf Life: 24 months in unopened, original packaging.
Application Guidelines
The brake linings mixture is molded under high pressure (20-35 MPa) and sintered to ensure adhesion between the friction layer and backing plate. Post-production testing includes thermal cycling (650°C→25°C, 500 cycles) and shear strength validation (≥3.5 MPa) . Customized brake linings mixes can be tailored to meet specific OEM requirements, such as adjusting carbon-to-metallic ratios for varying load capacities.
By integrating carbon-metallic technology with rigorous manufacturing standards, this brake linings friction material ensures optimal safety and performance for commercial vehicles operating in demanding environments.