Introduction to Truck Brake Shoes HD (High-Density) Ceramic Mixture
Truck brake shoes HD ceramic mixtures are premium brake shoes friction materials designed for heavy-duty commercial vehicles requiring exceptional thermal stability, noise reduction, and longevity. This advanced brake shoes formula integrates high-density ceramic matrices, reinforced carbon fibers, and proprietary additives to achieve superior braking performance under extreme conditions. Below is a detailed overview of its technical specifications, advantages, and storage guidelines.
Technical Parameters
The table below summarizes key properties of HD ceramic-based brake shoes mixes:
| Parameter | Specification | Remarks |
|---|---|---|
| Density | 3.0–3.5 g/cm³ | High-density structure for enhanced wear resistance |
| Friction Coefficient (μ) | 0.30–0.40 (Dry) | Stable performance with minimal fade at high temperatures |
| Operating Temperature | -50°C to 800°C | Exceptional thermal resistance for heavy loads |
| Compressive Strength | ≥350 MPa | Robust structural integrity under stress |
| Wear Rate | ≤0.3 cm³/MJ | Extended service life exceeding 200,000 km |
| Shore Hardness | 70-85 Shore D | Optimized for minimal drum wear |
| Certifications | ISO/TS 16949, ECE R90 | Complies with global safety standards |
Key Advantages
- Superior Heat Dissipation
The brake shoes mixture utilizes ceramic matrices to dissipate heat rapidly, reducing thermal fade even during prolonged braking . - Low Noise and Vibration
Ceramic additives and carbon fibers minimize brake squeal and vibrations, enhancing driver comfort . - Eco-Friendly Composition
Free from asbestos and heavy metals, aligning with environmental regulations . - High Durability
The brake shoes formula ensures a wear rate 30% lower than semi-metallic alternatives, ideal for long-haul trucks . - Lightweight Design
High-density ceramic materials reduce overall brake system weight without compromising strength .
Storage and Packaging
- Moisture Protection: Sealed in vacuum-packed, moisture-resistant bags to prevent ceramic degradation .
- Temperature Limits: Store in environments between -10°C and 40°C to maintain material integrity .
- Stacking Guidelines: Maximum stacking height of 4 layers to avoid deformation .
- Shelf Life: 24 months in unopened packaging under recommended conditions .
Application of Brake Shoes Mixes
The brake shoes mixes are precision-molded under high pressure (20–35 MPa) and sintered at 1,200°C to bond the friction layer to the shoe plate . Post-production quality tests include:
- Shear strength validation (≥3.8 MPa) .
- Thermal cycling tests (-50°C ↔ 800°C) to ensure crack resistance .
For specialized requirements, manufacturers adjust the brake shoes formula to meet OEM specifications, such as custom hardness or friction profiles .
By combining cutting-edge ceramics with rigorous engineering, this HD ceramic mixture sets a new benchmark for reliability and efficiency in commercial vehicle braking systems.