Research on Application of High-Speed Data Acquisition System for AC Rail Flash-Butt Welding

Abstract:

Data acquisition system of the flash-butt welding machine had been designed for sampling current and voltage data during welding process. Software, which could sample and analyze the welding data easily, has been developed based on LabVIEW and Visual Basic. The acquisition system could sample, store and query the welding current and voltage data, as well as display the real-time waveform of them. By analyzing welding data and waveforms, we could extract characteristic signals over all phases, including flash stability, input heat and plus-minus symmetry of current waveform. Further more, he characteristic signals’ extracting and current waveform’s analyzing, could be used to instruct the welding processing debugging and the diagnosis of equipment failures, especially the failures which was difficulty to be found with conventional methods.

• Periodical: Applied Mechanics and Materials (Volumes 239-240)
• Pages: 884-888
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.239-240.884
• Online since: December 2012
• Authors: Qi Bing Lv, Ke Li Tan, Xiao Gang Dai, Xi Zhang
• Keywords: Data Acquisition, Flash-Butt Welding, LabVIEW, Online Diagnosis

References

[1] Lv Qi-bing. Research on Technology, Quality and Processing Control of Rail Flash-Butt Welding. Journal of Southwest Jiaotong University. (2006)

[2] Yang Leping, Li Haitao, Zhao Yong, Advanced Program Design for LabVIEW[M].Beijing: Publishing House of Tinghua，2003.

[3] Lv Qi-bing, Dai Hong, Luo De-yang. Acquisition and Control of the Quality Information in Flash-butt Welding. Railway Transaction, 2003 Vol.25 No.1

[4] Lv Qi-bing, Dai Hong, Luo De-yang, Tan Ke-li. Optimization of Flash Butt Welding Parameters for Welding of U75V Rails. Journal of Southwest Jiaotong University. (2006)