Ultrasonic phased array detection method for butt weld of composite steel plate and flat plate for bridge

The invention relates to an ultrasonic phased array detection method for a butt weld of a composite steel plate and a flat plate for a bridge. The method comprises the following steps: step 1, selection of a detection surface; step 2, selection of detection equipment; step 3, calibrating the detection equipment; step 4, testing a reference block; and 5, testing the reference block of the butt weld of the composite steel plate and the flat plate. According to the ultrasonic phased array detection method for the butt weld of the composite steel plate and the flat plate for the bridge, probes can be placed on the surface of a stainless steel composite plate and a carbon steel coating layer respectively, and quality detection and maintenance detection after service of the butt weld of the composite steel plate and the flat plate in the bridge manufacturing stage are carried out. 本发明涉及一种桥梁用复合钢板平板对接焊缝的超声相控阵检测方法，所述方法包括以下步骤：步骤一、检测面的选择；步骤二、检测设备的选择；步骤三、检测设备的校准；步骤四、对比试块的测试；步骤五、复合钢板平板对接焊缝对比试块的测试。本发明一种桥梁用复合钢板平板对接焊缝的超声相控阵检