Calibration test block for ultrasonic detection of weld joint of composite board material

The utility model discloses a composite board material weld joint ultrasonic detection calibration test block which comprises two composite boards which are arranged in parallel and are connected through a butt weld joint; the plurality of first transverse through holes are vertically arranged and formed in the butt welding seam; and the plurality of second transverse through holes are vertically arranged and formed in the composite plate. According to the test block, the influence of a composite layer on ultrasonic reflection and transmission in composite board material weld joint ultrasonic detection can be measured, meanwhile, ultrasonic detection sensitivity calibration can be realized, and by using the test block, the accuracy of composite board material weld joint ultrasonic detection and the accuracy of sensitivity calibration can be greatly improved. 本实用新型公开了一种复合板材料焊缝超声波检测校准试块，包括：复合板，两块所述复合板并列设置，且两块所述复合板之间通过对接焊缝连接；第一横通孔，若干所述第一横通孔竖直排列开设于所述对接焊缝中；第二横通孔，若干所述第二横通孔竖直排列开设于所述复合板。本实用新型可以实现对复合板材料焊缝超声波检测中复合层对超声波