Description
Technical Parameters
Core Material & Mechanical Performance Indexes
| Model No. | Material Grade | Tensile Strength (MPa) | Surface Hardness (HV 30) | Fatigue Life (Million Cycles) | Elongation at Fracture (%) | Heat Treatment Process | Core Material-Mechanics Advantage |
|---|---|---|---|---|---|---|---|
| SKL1 | 55Si2Mn | ≥1300 | 400 - 430 | 3 | ≥8 | Quenching + Tempering | Cost-effective material for low-load local railways |
| SKL3 | 60Si2CrA | ≥1450 | 420 - 450 | 4 | ≥9 | Precision Forging + Tempering | Enhanced clamping force for subway vibration reduction |
| SKL12 | 60Si2MnA | ≥1500 | 430 - 460 | 5 | ≥10 | Cold Rolling + Heat Treatment | Resists high-frequency dynamic loads of high-speed trains |
| SKL13 | 60Si2Cr | ≥1600 | 440 - 470 | 4.5 | ≥9 | Reinforced Quenching + Tempering | Handles axle loads over 30 tons for heavy - load railways |
| SKL14 | 38Si7 | ≥1350 | 410 - 440 | 3.5 | ≥8.5 | Normalizing + Tempering | Facilitates quick disassembly with balanced mechanical properties |
Adapted Railway Line Types & Exclusive Characteristics
| Model No. | Target Railway Line Type | Applicable Train Speed (km/h) | Axle Load Adaptability (tons) | Exclusive Structural Design | Matching Auxiliary Components | Service Life (Years) | Core Adaptation Advantage |
|---|---|---|---|---|---|---|---|
| SKL1 | Local Railways | ≤80 | ≤20 | Basic Spring Clip Curvature | Common Rubber Rail Pad | 20 | Fits small - volume local transport |
| SKL3 | Urban Subways & Light Rails | ≤120 | ≤22 | Double Spring Bars | Composite Vibration - Reduction Pad | 25 | Optimizes noise reduction for urban rail |
| SKL12 | High - speed Railways | ≤350 | ≤25 | Optimized Geometric Profile | High - precision Insulating Gauge Block | 30 | Ensures stability for ballastless track of high-speed rail |
| SKL13 | Heavy - load Freight Trunk Lines | ≤100 | ≥30 | Reinforced Clip Body | High - strength Anchor Bolt | 28 | Withstands extreme loads of heavy - duty freight |
| SKL14 | Intercity Railways | ≤200 | ≤24 | Quick - disassembly Structure | Detachable Nylon Sleeve | 26 | Speeds up daily maintenance and emergency replacement |
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