Introduction to Truck Brake Shoes Scorched Mixture
Truck brake shoes scorched mixtures are a specialized category of brake shoes friction materials designed to withstand extreme thermal stress while maintaining consistent braking performance. This brake shoes formula utilizes a unique scorching process to enhance the bonding of carbonized organic fibers, metallic particles, and ceramic modifiers, resulting in a robust brake shoes mixture ideal for heavy-duty trucks operating in high-temperature environments. Below is a detailed analysis of its technical specifications, advantages, and storage protocols.
Technical Parameters
The table below outlines the critical properties of scorched-based brake shoes mixes:
| Parameter | Specification | Remarks |
|---|---|---|
| Primary Components | 40-55% Carbonized Fibers, 20-30% Steel, 10-15% Ceramic Additives | Enhances thermal stability and wear resistance |
| Density | 2.8-3.4 g/cm³ | Optimized for heat dissipation and structural integrity |
| Friction Coefficient (μ) | 0.38-0.48 (Dry) | Stable under repeated braking cycles |
| Operating Temperature | -40°C to 800°C | Resists thermal fade and glazing |
| Compressive Strength | ≥320 MPa | Suitable for high-load applications |
| Wear Rate | ≤0.4 cm³/MJ | Extended service life under abrasive conditions |
| Shore Hardness | 65-80 Shore D | Ensures compatibility with cast iron drums |
Key Advantages
- Superior Thermal Resistance
The scorching process creates a carbon-rich matrix that dissipates heat rapidly, reducing brake fade even at 800°C . - Enhanced Durability
Steel particles and ceramic additives in the brake shoes friction materials minimize wear, making them ideal for mining and long-haul transport. - Noise and Vibration Damping
Carbonized fibers absorb vibrations, reducing brake squeal and improving driver comfort. - Environmentally Friendly
Low copper content (<0.5%) aligns with global regulations on non-toxic brake shoes mixes . - Rapid Recovery Post-Overheating
The scorched structure retains friction properties after cooling, unlike traditional organic linings.
Storage and Packaging
- Moisture Protection: Packed in vacuum-sealed, aluminum-coated bags to prevent oxidation of metallic components .
- Temperature Limits: Store in environments between -10°C and 35°C; avoid direct sunlight.
- Stacking Guidelines: Maximum 6 layers to prevent deformation of the friction layer.
- Shelf Life: 18 months in unopened packaging.
Application of Brake Shoes Formula
The scorched brake shoes mixture is compression-molded under 20-35 MPa pressure and cured at 300-400°C to achieve optimal adhesion. Post-production, it undergoes rigorous quality checks, including shear strength (≥4.0 MPa) and thermal shock resistance testing. Customizable ratios allow adaptation to specific OEM requirements, such as increased ceramic content for mountainous terrains .
This advanced brake shoes formula combines cutting-edge material science with industrial practicality, ensuring reliability for commercial vehicles in the most demanding operating conditions.