Introduction to Truck Brake Linings Semi-Metallic Mixture
Truck brake linings semi-metallic mixtures are advanced brake linings friction materials designed for heavy-duty applications, combining metallic fibers with ceramic or organic additives to balance durability, heat resistance, and braking efficiency. This brake linings formula is widely adopted in commercial vehicles due to its adaptability to extreme conditions and compliance with environmental regulations . Below is a detailed overview of its composition, technical specifications, advantages, and storage guidelines.
Technical Parameters
The table below outlines the key properties of semi-metallic brake linings mixes:
| Parameter | Specification | Remarks |
|---|---|---|
| Metallic Content | 50-70% (Iron, Steel, Copper fibers) | Enhances heat dissipation and wear resistance |
| Density | 2.6-3.2 g/cm³ | Optimizes structural integrity |
| Friction Coefficient (μ) | 0.35-0.45 (Dry) | Stable across speed and temperature ranges |
| Operating Temperature | -50°C to 600°C | Minimizes thermal fade |
| Compressive Strength | ≥280 MPa | Withstands high hydraulic pressure |
| Wear Rate | ≤0.5 cm³/MJ | Extended service life |
| Thickness | 15-18 mm | Compatible with standard drum systems |
Key Advantages
- Superior Heat Resistance
The brake linings mixture efficiently dissipates heat, reducing brake fade during prolonged braking, even under heavy loads . - Low Wear and Longevity
Reinforced with steel fibers, the brake linings friction materials exhibit minimal wear, ideal for high-mileage trucks . - Environmental Compliance
Free from asbestos and heavy metals, aligning with RoHS and global environmental standards . - Noise Reduction
Ceramic additives minimize vibration and squeal, enhancing driver comfort . - Versatility
Compatible with cast iron and composite brake drums, suitable for diverse truck models .
Storage and Packaging
- Moisture Protection: Packed in sealed, moisture-resistant bags to prevent oxidation .
- Temperature Control: Store in dry environments below 40°C to avoid material degradation.
- Stacking Limits: Maximum 5 layers to prevent deformation .
- Shelf Life: 24 months in unopened, original packaging.
Application of Brake Linings Mixes
The brake linings mixes are molded under high pressure (15-25 MPa) and bonded to shoe plates using heat-resistant adhesives. Post-production testing includes thermal cycling and shear strength validation (≥3.5 MPa) to ensure reliability . Custom formulations are available to meet OEM or aftermarket specifications.
This semi-metallic brake linings formula delivers robust performance for commercial vehicles operating in demanding environments, combining innovation with practicality.