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Train rails are bent using special portable rolling machines or hydraulic rail bending devices that apply pressure to shape the rails into the desired curve. This process is essential for laying curved track and ensuring proper alignment and safety.
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Methods for Bending Train Rails
Train rails are bent using specialized equipment designed to ensure precision and safety during the installation of curved tracks. The primary methods include:
Portable Rolling Machines
- Function: These machines are used to gradually bend the rail into the desired curvature.
- Application: Ideal for general railroad applications where curves are gentle.
Hydraulic Rail Bending Devices
- Function: These devices apply hydraulic pressure to bend the rails accurately.
- Usage: Commonly used for joints that require adjustments due to wear or deformation.
Process of Bending Rails
The bending process involves several steps to ensure the rails meet safety and alignment standards:
- Preparation: Rails are positioned on ties or sleepers according to the required curve.
- Bending:
- Portable Machines: Rails are rolled into shape.
- Hydraulic Devices: Pressure is applied to achieve the desired curvature.
- Installation: Once bent, the rails are secured to the ties using fastening systems.
Importance of Rail Bending
Bending train rails is crucial for:
- Safety: Properly curved rails reduce the risk of derailments.
- Alignment: Ensures trains can travel smoothly along the track.
- Efficiency: Facilitates the construction and maintenance of rail systems.
This process is essential for creating safe and efficient rail networks, allowing trains to navigate curves without compromising stability.