焊缝射线检测智能化评定系统研制

Intelligent X-Ray Film Evaluation System of Welding Seam

目前X射线检测存在检测底片难于长时间保存、对操作人员依赖性强等不足,底片检测信息处理智能化水平较低。随着搅拌摩擦焊、激光焊等新方法的应用,制造业数字化车间的建设,对缺陷检测、质量检测信息的有效保存、处理也提出了更高的要求。为解决轨道车辆车体焊接结构内部缺陷检测可视化、自动化的需求,研发高质量的X射线检测底片扫描技术、先进的信息处理技术,开发X射线检测底片的数字化及自动化评定技术,实现底片有效信息的无损数字化,底片缺陷自动搜寻、测量与分类,研发国内首套高速列车射线底片智能化评定系统,提升X射线检测技术的信息化、自动化水平,实现底片自动化评定。相关技术可向航空航天产品进行推广。

A new requirement for defect detection has been proposed for the application of the new methods such as friction stir welding and laser welding. Furthermore, it is also necessary to realize long time storage and automatic processing after manufacture and servicing in the digital workshop. At present, the detection of X-ray detection meth- od has many shortcomings, for example the film can not be preserved in long time, the evaluation is depend on the level of operators and the testing automatic level is not enough. In order to make the testing of internal defects in the rail vehicle welding structure, more visible and automatized a digitalized X-ray testing and evaluating method is pro- posed. In this paper, a new digitalized device of X-ray film is constructed and the film can be scanned into the com- puter at low information loss. Then the finding, measurement and recognition of welding imperfection, evaluation of film is realized. At last, a testing database is established also to record and look back the weld film information.