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What to do about welding deformation in bridge cranes?
Release time:
2021-05-07
Understanding the causes of welding deformation is crucial in order to take appropriate measures based on specific situations. This helps to reduce the extent of welding deformation to a minimum, ensuring that the structure is used correctly and reasonably. It also improves the various performances of the bridge crane, providing better guarantees for construction.
It is important to fully understand the causes of welding deformation, which is beneficial for taking appropriate measures based on specific situations, reducing the degree of welding deformation to a minimum, ensuring the structure is used correctly and reasonably, and better improving the various performances of the bridge crane for better construction.
Under normal circumstances, the main reason for welding deformation in bridge cranes is due to uneven heat input. The magnitude of heat input is closely related to the welding materials and structure, with material and structural factors jointly affecting the movement of metal around the heat source, causing it to be influenced by both internal and external constraints, leading to stress deformation in the welding materials.
During the welding process, many factors can lead to these issues, such as the weld size not being accurate enough, the number of welds not meeting the predetermined standards, significant errors between the welding position and the designed position, the thermal physical properties of the welding materials not being strong, the construction process not being conducive to achieving a good welding state, and the selection of welding parameters. Each specific link must be carefully managed to achieve the desired effect.
Welding deformation mainly includes types such as shrinkage deformation (longitudinal and transverse shrinkage), bending deformation, angular deformation, wave deformation, and twisting deformation, which are manifested in the external structure of the bridge crane as local bulges, distortions, bends, and twists.
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