Description
Technical Parameters
Installation Torque & Fastening Control Parameters
| Model No. | Recommended Torque Range (N·m) | Max Torque Limit (N·m) | Torque Accuracy Requirement (±%) | Clamping Force at Standard Torque (kN) | Installation Tool Type | Torque Inspection Frequency | Torque Abnormality Solution | Core Fastening Advantage |
|---|---|---|---|---|---|---|---|---|
| E1609 | 80-100 | 147 | 5 | 8.5-9.5 | Manual Torque Wrench | Quarterly (General Lines) | Retighten for insufficient torque; Replace damaged clips for excessive torque | Cost-effective for branch line fastening |
| E1809 | 90-110 | 150 | 5 | 9.0-10.0 | Pneumatic Torque Tool | Bimonthly (Mixed Traffic) | Clean corroded screws; Adjust wrench precision | Balanced torque for passenger-freight lines |
| E2009 | 120-150 | 196 | 3 | 10.5-12.5 | Hydraulic Torque Tool | Monthly (High-Speed Rail) | Calibrate tools; Replace deformed threads | Stable clamping for high-speed dynamic loads |
| E1813 | 95-115 | 160 | 4 | 9.5-10.5 | Electric Torque Wrench | Monthly (Heavy-Haul Lines) | Reinforce sleeper connection before torque adjustment | High torque resistance for freight impact |
| E2055 | 100-120 | 180 | 4 | 10.0-11.0 | Precision Torque Tool | Bimonthly (Urban Rail) | Avoid repeated disassembly; Lubricate bolts | Consistent torque for frequent start-stop cycles |
Low-Temperature Performance & Environmental Limitations
| Model No. | Core Material | Low-Temperature Elastic Retention (-40℃, %) | Low-Temperature Impact Toughness (J/cm²) | Applicable Minimum Temperature (℃) | Freeze-Thaw Cycle Resistance (Cycles) | Low-Temperature Optimization Measure | Usage Limitation | Core Low-Temperature Advantage |
|---|---|---|---|---|---|---|---|---|
| E1609 | 60Si2MnA | ≥75 | ≥45 | -30 | ≥50 | Basic low-temperature tempering | Not for ≤-30℃ areas | Cost-effective for mild cold regions |
| E1809 | 60Si2MnA | ≥80 | ≥50 | -35 | ≥75 | Nickel addition (0.3-0.5%) | Limited use in alpine areas | Balanced toughness for mixed climates |
| E2009 | 60Si2CrA | ≥85 | ≥60 | -45 | ≥100 | Chromium-Vanadium alloying + low-temperature nitriding | Suitable for extreme cold | Stable performance in -45℃ alpine regions |
| E1813 | 55Si2Mn | ≥78 | ≥48 | -32 | ≥60 | Grain refinement via cold rolling | Avoid rapid temperature changes | Wear resistance at low temperatures |
| E2055 | 38Si7 | ≥82 | ≥55 | -40 | ≥80 | Vacuum heat treatment | Not for freeze-thaw frequent areas | Good elasticity retention in cold-humid environments |
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