What are the standards for long rail welding?

Edit:Zongxiang Heavy Industry--Ethan Date:2018-09-07 10:44:44

Rail welding is an important part of railway construction, its quality directly determines the overrall quality of the rail, therefore, the welding of rails is generally valued during construction. So , what are the precautions when welding long rails?

1?  The steel rail to be welded shall comply with the relevant technical requirements for the railway line of the new line railway, base rail welding should use contact welding, welding equipmeng operators are specially trained, familiar with the quality standards of rail welding heads, passed the examination by relevant departments and obtained the operation certificate.

2?  The operator must strictly implement the operating procedures of the welding equipment, and verify the determined operation parameters according to the form, long rail shall be prepared according to the design requirements before welding.

3?  When the rail is used, the rails with asymmetrical seciton and the same tolerance should be selected for relative welding, the asymmetry deviation of the first and last sections of long rail shall not exceed 0.6mm, cut the rail according to the railing requirements and straightening conditions. In addition, after the hard bend of the rail is straightened. Use a 1m ruler to measure its sagittality should not exceed 0.2mm. Remove dirt within 0.5m of the rail end, the end face of the rail to be welded and the contact between the rail and the electrode shall be ground and rusted.

Tel: +86 182 3676 6038

Email: zxsteel@zxsteelgroup.com