Which type of corner joint is good?
Thread Content
The plug-in structure is better than the fixed structure, so it can be used in conditions with severe cycling – why is that?
The corner joint with an insert structure allows the components within the joint to move and adjust their positions relatively freely due to its design, which enables it to better cope with severe cyclic conditions or frequent vibrations and pressure changes. In high-intensity operating environments, plug-in structures with good adjustability and adaptability can reduce mechanical stress and wear, thereby extending the service life of the equipment. The fixed-type structure is relatively rigid and not able to adapt to frequent or significant stress changes; as a result, there is a risk of loose connections or damage under severe cyclic loading conditions. .
The fundamental reason is that the strength of plug-type joints relies on the strength in the rolling direction, whereas the strength of socket-type joints depends on the interlayer strength of the steel plates as well as the strength of the welds. Obviously, the strength in the rolling direction > the interlayer strength of the steel plate
What was said on the 3rd floor is correct; meanwhile, for the 150 model, fixed-type connectors are required, and the housing must be free from delamination defects (this is probably why UT testing at the openings is also specified)