Description
Technical Parameters
Anti-Corrosion Technology Upgrade & Environmental Adaptation
| Model No. | Anti-Corrosion Coating System | Coating Thickness (μm) | Salt Spray Test Duration (h) | Corrosion Resistance Grade | Operating Environment Range | Service Life in Harsh Environments (Years) | Environmental Adaptation Advantage |
|---|---|---|---|---|---|---|---|
| DS-AC12 | Hot-dip galvanizing + Passivation | 80-100 | 1200 | C5-M (ISO 12944) | -40℃~+80℃, RH≤95% | 10-12 | Cost-effective; suitable for coastal/rainy areas |
| DS-AC14 | Zinc-nickel alloy plating + Sealant | 20-30 | 2000 | C5-I (ISO 12944) | -45℃~+85℃, RH≤98% | 15-18 | Superior corrosion resistance; fits saline-alkali regions |
| DS-AC16 | Dacromet + Ceramic topcoat | 15-25 | 1800 | C4-H (ISO 12944) | -35℃~+75℃, RH≤92% | 12-15 | Anti-abrasion coating; ideal for sandstorm areas |
| DS-AC18 | Anodizing + Fluoropolymer coating | 30-40 | 2500 | C5-M (ISO 12944) | -50℃~+90℃, RH≤98% | 18-22 | Extreme temperature resistance; for high-altitude/desert railways |
| DS-AC20 | Chromium-free nano-coating | 12-18 | 1500 | C4-M (ISO 12944) | -30℃~+70℃, RH≤90% | 9-12 | Eco-friendly; meets RoHS/REACH standards |
Mechanical Performance Optimization & Failure Prevention
| Model No. | Shank Structure Design | Tensile Strength (MPa) | Shear Strength (MPa) | Pull-out Force (kN) | Fatigue Life (Cycles) | Typical Failure Modes | Failure Prevention Measures | Core Mechanical Advantage |
|---|---|---|---|---|---|---|---|---|
| DS-M12 | Smooth shank + Threaded tip | ≥400 | ≥320 | ≥18 | ≥1,000,000 | Shear fracture at shank | Increase shank diameter; quenched-tempered treatment | Balanced strength; for light rail |
| DS-M14 | Knurled shank + Conical tip | ≥550 | ≥450 | ≥25 | ≥1,500,000 | Pull-out, Tip deformation | Knurled design enhances grip; high-strength steel | High pull-out resistance; for conventional rail |
| DS-M16 | Ribbed shank + Serrated tip | ≥700 | ≥580 | ≥32 | ≥2,000,000 | Fatigue cracking | Ribbed structure reduces stress concentration; shot peening | Fatigue-resistant; for heavy rail |
| DS-M18 | Hollow shank + Reinforced head | ≥850 | ≥720 | ≥40 | ≥2,500,000 | Head detachment | Integrated head-shank design; heat treatment optimization | High shear/tensile strength; for heavy-haul rail |
| DS-M20 | Tapered shank + Carbide tip | ≥1000 | ≥850 | ≥48 | ≥3,000,000 | Tip wear, Shank bending | Carbide tip improves wear resistance; tapered shank distributes force | Extreme load resistance; for mine/industrial rail |
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