During train operation, wheels generate vertical, lateral, and longitudinal forces on the track. These forces, together with dynamic loads, cause the rails to bend in a wave-like manner, producing longitudinal thrust that can shift rails and even sleepers. This movement is called rail creeping.
The main causes include:
- Rail deflection under dynamic loads (primary cause)
- Longitudinal forces from wheel rolling and braking
- Temperature changes in rails
- Wheel impacts at rail joints
- Weak fastening pressure or insufficient anti-creeping devices
- Low ballast resistance
- Rail deflection is the leading cause, while the other factors intensify creeping.
Rail anchors made in one-piece construction from spring steel are designed to fasten the steel rail tight on the base of the rail to prevent the rail from longitudinal movements, i.e. the " creeping" of the rail, caused by changing temperature, grades, traffic patterns, and braking action of trains.
GNEE RAIL provides rail anchors for a variety of rail sizes to meet a variety of issues and demands. Our railroad tie anchor manufacturing processes assures that our rail tie anchors will remain the dominant performance in track. Our professional staff provides expertise and timely quotes for whatever is needed, whenever it is needed.
Rail anchors specifications
| Type | Used in 50Kg, 85Kg,90/91LB, 115RE /136RE ,UIC54 & UIC60 rail, or other types upon customers' drawings. | ||
| Material | 60Si2MnA | 45# | QT500-7 |
| Chemical composition(%) | C:3.60-3.80, Mn:≤0.6, Si:2.50-2.90, P:≤0.08, S:≤0.025 | ||
| C:0.56-0.64, Mn:0.60-0.90, Si:1.60-2.00, Cr:≤0.35, P:≤0.03, S:≤0.03 | C:0.42-0.50, Mn:0.50-0.80, Si:0.17-0.37, Cr:≤0.25, P:≤0.035, S:≤0.035 | ||
| Surface | plain (oiled),color painting, zinc painted or HDG | ||
| Standard | AS1085.10-20002 , DIN, ISO-9001 | ||
