1, The first UN - 200 rail AC flash butt welding machine with patent was introduced.

2, In this paper, the defects appeared in flash butt welding for HSS cutting tools have been analyzed. And the effective resolving way has been put forward.

3, The flash butt welding parameters of axisymmetric 45 steel were determined utilizing the orthogonal test.

4, Studied the joint structure and properties of flash butt welding to mining chains round made of new type meta-bainite steel.

5, At present foreign countries use flash butt welding technology to achieve the billets connection.

6, The temperature field of steel stick in flash butt welding was discussed.

7, The welding technology used for preheating flash butt welding was evaluated for workpieces with large welding section.

8, Development of HRB 500 Grade Reinforcement and Test Study of Its Flash Butt Welding.

9, The paper introduced a PLC network (MELSECNET/MINI)control system which is used for controlling flash butt welding machine set.

10, There are four phases and dozens of parameters in preheating flash butt welding technology used for great section workpiece's welding.

11, In this paper, on the base of the study of flash butt welding theory, a new intelligent control system of rail flash butt welding is developed.

12, A simplified 2D axial symmetry model was founded against the features of steel stick in flash butt welding. The temperature field was simulated utilizing ANSYS software.

13, The invention relates to a new process method and device of flash butt welding joint in steel bar continuous connection.

14, For the large cross-section of welded steel, you can generally use electromagnetic induction welding, laser welding and flash butt welding,[http:///flash butt welding.html] etc.

15, This paper has laid a foundation for the further work to the development of the new equipment and new technology of rail flash butt welding.

16, The result shows that the forecast controller exhibits excellent performance on eliminating synchronism of upsetting force in flash butt welding.