Manufacture

Flash butt welding of turnout components is a very central process in some of our production plants. High trained metallurgical and welding engineers develop suitable welding parameters to get optimised heat control for various materials.
Due to the use of computer-controlled welding machines which record all welding parameters a high grade of traceability is ensured. Periodical procedure approvals, 100 % non-destructive testing and maintenance guarantee the consistent welding process.

Continuous improvement of the procedures has lead already to some patents, for example the flash butt welded connection of austenitic manganese steel to rail steel. This particular VAE patent is used world wide now.

For non destructive testing of the finished welds modern technologies under supervision of level 3 personnel is used.
Destructive material testing and metallographical analyses for procedure approvals are carried out using adjusted and calibrated equipment in either one of our own or officially accredited laboratories