Analysis And Preventive Measures Of Rail Aluminum Heat Welding

The importance of preventive measures of welding thermal damage of aluminum set through the Bureau of Lanzhou Lanzhou west railway section tube rail aluminothermic welding operation mechanism, operation mode and review process and of the aluminum heat welding head injury statistical analysis, and aluminium heat welding damage to production operations throughout the entire stations bring effect is presented. Through analysis of aluminium heat welding joint damage reasons and puts forward preventive measures, the strengthening field management control and welding and grinding treatment measures for detection of rail can effectively reduce the occurrence and development of aluminium heat welding damage, improve quality of CWR track.In the paper, using the data of ultrasonic inspection, by the method of comparison and analysis, the Lanzhou West Railway Section damage were statistical analysis. First, clear the flaw detection data sources, all of the test data with a workshop, in order to effectively carry out the experimental study to lay a good foundation; secondly, the aluminium heat welding damage cause analysis, on typical damage reason and the metallurgical reaction inclusions are analyzed, on rail welding part of stress analysis to study, study of other factors for aluminothermic welding damage effects of proposed aluminothermic welding in the mode of operation and the rail damage treatment recommendations.Paper for aluminium heat welding damage causes and damage types, in order to improve the rail welding seam detection method, strengthen the management of aluminium heat welding operation in site, detailed and clear the various types of rail welding technical requirements, from the process control, quality evaluation, rewards and punishment system, the normalization of post weld grinding preventive measures, also for the rail head of nuclear damage, fell block, peel damage reference rail welding technology.