Introduction to Truck Brake Shoes Carbon-Ceramic Mixture
Truck brake shoes carbon-ceramic mixtures are a revolutionary advancement in brake shoes friction materials, combining high-strength carbon fibers with ceramic matrices to deliver exceptional braking performance for heavy-duty applications. This brake shoes formula is engineered to withstand extreme temperatures, reduce wear, and enhance longevity, making it ideal for commercial vehicles operating in demanding environments. Below is a detailed overview of its composition, technical specifications, advantages, and storage guidelines.
Technical Parameters
The table below summarizes the critical properties of carbon-ceramic brake shoes mixes:
| Parameter | Specification | Remarks |
|---|---|---|
| Ceramic Content | 40-60% (Silicon Carbide, Alumina) | Ensures thermal stability |
| Carbon Fiber Reinforcement | 20-30% | Enhances structural integrity |
| Density | 2.2-2.8 g/cm³ | Lightweight design |
| Friction Coefficient (μ) | 0.38-0.48 (Dry) | Consistent across 0°C–800°C |
| Operating Temperature | -50°C to 800°C | Resists thermal degradation |
| Compressive Strength | ≥280 MPa | Suitable for high-pressure braking |
| Wear Rate | ≤0.3 cm³/MJ | 50% lower than metallic mixes |
| Shore Hardness | 55-70 Shore D | Optimized for drum compatibility |
Key Advantages
- Superior Heat Resistance
The carbon-ceramic brake shoes mixture maintains stable friction performance even at 800°C, preventing brake fade during prolonged downhill braking . - Lightweight and Durable
Carbon fiber reinforcement reduces weight by 20-30% compared to metallic formulations while improving fatigue resistance . - Low Wear and Corrosion Resistance
Ceramic additives minimize abrasive wear and eliminate rust, extending service life to 150,000–200,000 km under normal conditions . - Eco-Friendly Performance
Produces less dust and noise compared to traditional brake shoes friction materials, complying with stringent environmental regulations . - Customizable Formulations
The brake shoes formula can be adjusted with varying carbon-to-ceramic ratios to meet OEM-specific requirements for torque, noise, or heat dissipation .
Storage and Packaging
- Moisture Protection: Packed in vacuum-sealed aluminum foil bags to prevent hydrolysis of carbon fibers .
- Temperature Limits: Store in environments between -10°C and 40°C to avoid thermal stress on the ceramic matrix .
- Stacking Guidelines: Maximum 4 layers to prevent cracking or deformation of the friction layer .
- Shelf Life: 18 months in unopened packaging; post-opening, use within 6 months .
Application of Brake Shoes Mixes
Carbon-ceramic brake shoes mixes are molded under high-pressure sintering (20-35 MPa) to bond the friction material to the steel shoe plate. Post-production testing includes thermal cycling (500–800°C) and shear strength validation (≥3.8 MPa) to ensure reliability . These materials are compatible with advanced brake systems in trucks, trailers, and buses, as certified by ISO/TS 16949 and E-Mark standards .
By integrating cutting-edge materials science with precision engineering, carbon-ceramic brake shoes provide unmatched safety and efficiency for modern heavy-duty vehicles.