Production and processing of Q235 stamping gaskets for Fujian No.45 carbon steel railway

Railway bolt gasketThe core processing method is stamping forming, supplemented by surface galvanizing/Dacromet treatment for rust prevention; Mainly used in the connection parts between rails and sleepers, sleepers and pads, to eliminate bolt loosening gaps.

Core processing methods

1. Stamping forming: By applying pressure to metal plates (mostly carbon steel) through molds, the shape and center hole of the gasket are punched out in one go, with high efficiency and uniform precision, which is the mainstream process in the industry.

2. Surface treatment: After forming, rust prevention treatment must be carried out. Common methods include hot-dip galvanizing (cost-effective) or Dacromet coating (more weather resistant, suitable for humid/coastal railways) to avoid long-term exposure to rust.

Main application scenarios

At the rail joint, it is placed between the rail joint bolt and the rail waist to fill the fitting gap and prevent the bolt from loosening due to vibration.

-Sleeper connection point: Placed between bolts and sleeper pads, and between pads and sleepers, to distribute bolt pressure and prevent sleepers or pads from being fractured.

-Key parts of turnouts: The connecting bolts of turnout components (such as switch rails and turnouts) must be used to ensure the stability of the turnout structure and avoid affecting the safety of train track changes.