Description
Technical Parameters
Extreme Condition Performance Parameters
| Model | Ultimate Tensile Strength (MPa) | Elastic Limit (MPa) | Fracture Elongation (%) | Max Axle Load Resistance (t) | Operating Temperature Range (℃) | Fatigue Test Conditions (Deflection) | Critical Failure Load (kN) | Extreme Environment Adaptability |
|---|---|---|---|---|---|---|---|---|
| SKL1 | ≥1300 | ≥1150 | ≥8 | ≤25 | -40 ~ 60 | 9.1mm (Deflection); 5 Million Cycles | ≥88 | Dry inland; Ordinary branch lines |
| SKL3 | ≥1350 | ≥1200 | ≥8 | ≤28 | -45 ~ 65 | 9.5mm (Deflection); 5 Million Cycles | ≥92 | High humidity; Urban subway noise reduction |
| SKL12 | ≥1400 | ≥1250 | ≥9 | ≤30 | -50 ~ 70 | 10.2mm (Deflection); 6 Million Cycles | ≥95 | High-speed dynamic load; -50℃ low-temperature resistance |
| SKL13 | ≥1500 | ≥1300 | ≥8 | ≥35 | -40 ~ 65 | 11.0mm (Deflection); 6 Million Cycles | ≥105 | Heavy-haul impact; Axle load >30t |
| SKL14 | ≥1400 | ≥1250 | ≥9 | ≤32 | -45 ~ 70 | 9.8mm (Deflection); 5 Million Cycles | ≥90 | Coastal high-humidity; Quick maintenance scenarios |
Installation Process & Quality Control Standards
| Model | Recommended Torque Value (N·m) | Installation Tool Type | Gauge Adjustment Range (mm) | Vertical Adjustment Range (mm) | Installation Spacing (mm) | Quality Inspection Method | Qualification Criteria | Installation Key Note |
|---|---|---|---|---|---|---|---|---|
| SKL1 | 80-100 | Manual Pliers + Torque Wrench | ±8 | -5 ~ +10 | 600-800 | Visual + Tensile Test | No deformation; Clamping force ≥45kN | Align with pre-drilled holes |
| SKL3 | 90-110 | Pneumatic Clip Tool | ±12 | -5 ~ +10 | 500-700 | Ultrasonic Flaw Detection | No internal cracks; Vibration damping ≥20% | Ensure double spring bar alignment |
| SKL12 | 100-120 | Precision Hydraulic Tool | ±6 | -5 ~ +12 | 700-900 | Laser Gauge + Fatigue Test | Gauge deviation ≤±0.5mm | Pre-installation rail pad cleaning |
| SKL13 | 110-130 | Heavy-Duty Hydraulic Tool | ±10 | -6 ~ +10 | 600-800 | Magnetic Particle Inspection | Surface hardness 42-47 HRC | Reinforce sleeper connection before installation |
| SKL14 | 95-115 | Quick-Release Clip Tool | ±12 | -5 ~ +11 | 550-750 | Torque + Deflection Test | Torque deviation ≤±5%; Deflection ≤1.5mm | Use anti-corrosion gasket in coastal areas |
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