The following methods can be used to reduce the welding stress and deformation of ASTM CortenA weathering steel:
(1) Reverse deformation method; (2) Reasonable installation and welding sequence; (3) Rigid fixing method; (4) Heat dissipation method; (5) Hammer welding method; (6) Preheating and gentle cooling method.
The deformation of ASTM CortenA weathering steel during welding can be divided into the following categories:
1. Longitudinal shortening and transverse shortening; 2. Angular deformation; 3. Bending deformation; 4. Wave and deformation; 5. Distorted deformation.
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