Description
Technical Parameters
Technical Parameter Comparison
| Parameter | Standard Fishplate | Insulated Fishplate | Compromise Fishplate |
|---|---|---|---|
| Material | Q345B low-alloy steel | GF-reinforced nylon (PA66+GF30) | 60Si2MnA spring steel |
| Length (mm) | 600/800 (standard joints) | 400 (short insulated joints) | Custom (bridge expansion) |
| Bolt Holes | 6 (M24 bolts) | 4 (insulated bushings) | 8 (reinforced) |
| Conductivity | Fully conductive | Resistance >10⁹Ω | Semi-insulated (special coating) |
| Tensile Strength | ≥500 MPa | ≥150 MPa (non-metallic) | ≥800 MPa |
Application Scenarios
| Scenario | Recommended Type | Special Requirements |
|---|---|---|
| Conventional rail temp. repair | 6-hole Q345B standard | Daily bolt torque inspection |
| Electrified section insulated joint | 4-hole PA66 insulated | Monthly insulation resistance test |
| Heavy-haul railway bridges | 8-hole 60Si2MnA reinforced | Used with rail expansion devices |
| Metro vibration reduction | Resilient composite type | Noise reduction ≥5dB |
Application of rail fish plate
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