Research on Welding Technology and Weld Quality Inspection of Key Components of Grid Structure
In view of the stability requirements of the grid structure,the paper analyzes the welding technology of the ball hinge bearing with high tensile strength and the grid frame,and summarizes the basic flow of welding seam detection by ultrasonic wave,emphasizing the three de-tection points of control sweep path,calibration sensitivity and identification of pseudo-defect wave.The test results show that the quality of welds in the project has reached the design standard,which can provide useful reference for long-span grid structure engineering.
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