Introduction to Truck Brake Linings HD (High-Density) Ceramic Mixture
Truck brake linings HD ceramic mixtures are a cutting-edge innovation in brake linings friction materials, engineered to deliver unparalleled braking performance under extreme heavy-duty conditions. By integrating high-density ceramic matrices with advanced reinforcing fibers and binding agents, this brake linings formula achieves exceptional thermal stability, wear resistance, and noise reduction. Below is a comprehensive overview of its technical specifications, advantages, and storage protocols, tailored for commercial vehicles requiring robust and reliable braking systems.
Technical Parameters
The table below outlines the critical properties of HD ceramic-based brake linings mixes:
| Parameter | Specification | Remarks |
|---|---|---|
| Density | 3.0–3.5 g/cm³ | High-density design for enhanced durability and heat dissipation |
| Friction Coefficient (μ) | 0.38–0.48 (Dry) | Stable performance across speed and temperature ranges |
| Operating Temperature | -50°C to 800°C | Resists thermal fade even under prolonged braking |
| Compressive Strength | ≥350 MPa | Withstands extreme hydraulic pressure in drum brake systems |
| Wear Rate | ≤0.3 cm³/MJ | Extended service life, ideal for high-mileage trucks |
| Shore Hardness | 70-85 Shore D | Optimized for high-density drum contact and reduced deformation |
| Ceramic Content | 40-60% (Alumina, Silicon Carbide) | Enhances thermal resistance and reduces noise |
Key Advantages
- Superior Heat Management
The high-density ceramic matrix efficiently dissipates heat, minimizing brake fade during continuous use. This is critical for downhill braking or fully loaded trucks. - Exceptional Wear Resistance
Reinforced with ceramic particles and high-strength fibers, the brake linings mixture exhibits a wear rate 30% lower than conventional semi-metallic materials. - Noise and Vibration Reduction
Ceramic additives (e.g., alumina) dampen vibrations, eliminating squeal even in wet or dusty environments. - Environmental Compliance
Free from asbestos and heavy metals, aligning with global regulations like EU REACH and RoHS. - Lightweight Performance
Despite high density, the optimized brake linings formula reduces overall component weight by 15-20% compared to metallic counterparts, improving fuel efficiency.
Storage and Packaging Guidelines
- Moisture Protection: Store in vacuum-sealed, moisture-proof packaging to prevent ceramic matrix degradation.
- Temperature Control: Avoid exposure to temperatures above 45°C or below -20°C to maintain adhesive integrity.
- Stacking Limits: Maximum stacking height of 6 layers to prevent deformation of high-density linings.
- Shelf Life: 24 months in original packaging when stored in a dry, ventilated environment.
Application of Brake Linings Mixes
The brake linings mixes are precision-molded under high pressure (20-35 MPa) and sintered at 1,000°C to ensure uniform density and adhesion to the shoe plate. Post-production, they undergo rigorous quality checks, including thermal cycling tests and shear strength validation (≥4.0 MPa).
For OEMs and aftermarket suppliers, customization options are available to adjust the brake linings formula for specific vehicle models or operating conditions, such as off-road mining or long-haul logistics.
By combining advanced ceramic technology with high-density engineering, this solution ensures reliable, eco-friendly braking performance for the most demanding commercial applications.