What are the surface treatment methods for railway elastic clips?

A rail clip is typically a metal component used to attach the rail to the track supporting structure. Rail clips are designed to securely hold the rail laterally, while also allowing for some longitudinal movement and expansion due to temperature change and other factors.

Common surface treatment methods for railway elastic clips include plain (oiled), black oxide, and hot-dip galvanizing (HDG). Other options are painting, bitumenizing, or applying wax, with the specific treatment often chosen based on customer requirements and the application's needs for corrosion resistance and appearance.

Common surface treatments

• Plain (oiled): A basic treatment that applies a thin layer of oil for temporary corrosion protection.

• Black Oxide: Creates a thin, black protective coating, commonly used for a clean and durable finish.

• Hot-Dip Galvanizing (HDG): A process that coats the clip in a thick layer of zinc for excellent corrosion resistance, often used in harsh environments.

• Painting: Allows for color options and can provide a decorative finish, with the color often specified by the customer.

Other options

• Bitumenizing: Applying a bitumen-based coating for added protection, particularly against corrosion.

• Wax: A wax coating that can be used to provide a protective layer.

• Customized treatments: Manufacturers can apply other treatments based on specific customer needs and application requirements.

What's the function of rail clip?

Rail track supports vehicle and is fixed to the railway sleeper by rail fastening system. As the core part of rail fastening system, the bending and distortion of rail clip will produce crimping force on the rail track, which ensure the reliable connection between rail tracks and keep the integrity of rail track. Besides, the rigid contact of vehicle and rail track will cause vibration, the elastic structure of rail clip can absorb the impact energy during the train operation, reduce the shocking. The elastic rail clip works under the repeated alternating stress. It bears various effects such as bending, torsion, fatigue and corrosion. When the vehicle passes, it also bears extremely high instantaneous impact load.

As an OEM & OBM manufacturer, GNEE RAIL is capable of not only producing a wide range of internationally common types of rail clips, such as W Tension Clamp, e-Clip, Fast-Clip, SKL Tension Clamp, Nabla Blade, etc., but also customizing products tailored to our customers' specific requirements.

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