Elastic clip fastening manufacturers tell you that with the increase of the axle load of railway locomotives and the increase of train speed, as well as the development of urban rail transit and subway, elastic clips, as a key link of track structure, are also constantly developing. Sexuality has also attracted more and more attention from various countries. For example, on conventional lines, elastic strips with large buckle pressure and good elasticity are required to meet the needs of heavy-duty and high-speed lines; while in seamless lines of viaduct tracks, in order to reduce the interaction force between rails and bridges, fasteners are required The resistance is small, and the elastic strips are guaranteed to have sufficient elasticity, that is, the rigidity of the elastic strips is low enough to ensure that the buckle pressure loss caused by the compression of the under-rail cushion is small when the train passes, and the fasteners are not loose.

Elastic clip fastening is a key component of rail fasteners: currently there are mainly types I (type A, type B) and type II. Strictly implement product standards, with low cost, strict requirements, high output, continuous improvement, keep up with the development of railways, and manufacture products that meet customer requirements. Standards meet customer requirements. The material of the B-type spring bar is mainly 60Si2Mn, and the hardness can reach: 60-62.
Elastic clip fastening technical requirements: the material of the elastic clip is 60Si2Mn or 55Si2Mn hot-rolled spring round steel, and the technical requirements should meet the requirements of GB 1222; the hardness of the elastic clip is HRC41~46; the metallographic preparation of the elastic clip should be uniform tempering and yielding Traces of intermittent ferrite are allowed in the center of the sorbite and sorbite; the elastic bars must not have overheating or overburning. The height of the decarburized layer on the surface, including pure iron and the transition layer, shall not exceed 0.3mm; after the residual deformation test of the elastic strip, the long-term deformation value of the front end of the middle part shall not exceed 1mm.