Description
Technical Parameters
Railway Fishplate (Joint Bar) Technical Specifications
Fishplates are critical components for joining rail ends, ensuring track continuity and smooth transitions. Below is a comprehensive technical breakdown:
Core Functions
| Function | Description | Key Parameters |
|---|---|---|
| Mechanical Joint | Transmits longitudinal forces (braking/thermal stress) | Tensile strength: 400-800 MPa |
| Electrical Conductivity | Maintains circuit continuity in electrified sections | Insulation resistance: ≥10⁸ Ω (insulated type) |
| Impact Resistance | Withstands dynamic wheel loads (≥25t axle load) | Fatigue life: ≥2 million cycles |
Main Types
| Type | Features | Applications | Standards |
|---|---|---|---|
| Standard Fishplate | Carbon steel (Q235B) | Conventional railways | TB/T 2344 (CN) |
| Insulated Fishplate | Nylon/composite material | Electrified sections | EN 13481 (EU) |
| High-Strength | Alloy steel (40Cr), tensile ≥500MPa | Heavy haul lines | AREMA (US) |
| Glued Joint | Epoxy-filled for noise reduction | Urban transit/bridges | CJ/T 534 (CN) |
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