The reliability of hydraulic dam depends on the quality of the weld

The hydraulic dam is an important part of the water conservancy and hydropower project. Its quality is directly related to the safety and efficiency of the project. Once the damage occurs in the process of use, it will cause huge losses to the people's lives and property.

So how do you avoid this loss? In fact, the hydraulic dam is a welded structure, and its reliability depends to a large extent on the quality of the weld. For the quality of the weld interior, most of them use ultrasonic inspection.

The structure of the butt weld of the hydraulic movable dam is complicated, and the ultrasonic detection should pay attention to selecting the appropriate detection surface. When the steel plates on both sides of the weld are thick and flat, the weld sides are all on the detection surface. If some steel plates on both sides of the butt weld are not equal in thickness, in order to avoid end angle reflection and reduce other false signals, it should be detected on thinner steel plates.

In addition, manual ultrasonic testing has been widely used in various industries. Ultrasonic inspection of welds in hydraulic dams also has its characteristics.