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What effect does the mechanical properties of the packaging steel strip have on the quality of the packaging strip?
by：Hongmei
2021-03-15
What effect does the mechanical properties of the packaging steel strip have on the quality of the packaging strip?
The mechanical properties of the steel strip have a great influence on the weld quality and the steel pipe quality. The steel strip with high yield point and tensile strength is difficult to form (especially when the pipe wall is thick), the springback is large, and there is a large deformation stress during welding, which is often not good due to the use of conventional welding temperature and extrusion force. Of welding, cracks in the weld. The welding process of this kind of steel is relatively narrow and strict, and the flaring test of the strap is also prone to cracking. Some hard steel strips are chipped and torn during the forming process. When the tensile strength exceeds 635 MPa, the weld quality is more dangerous. Therefore, it is desirable to use mild steel belt or semi-hard steel belt as the blank for packing belt.
The mechanical properties of the steel strip have a great influence on the weld quality and the steel pipe quality. The steel strip with high yield point and tensile strength is difficult to form (especially when the pipe wall is thick), the springback is large, and there is a large deformation stress during welding, which is often not good due to the use of conventional welding temperature and extrusion force. Of welding, cracks in the weld. The welding process of this kind of steel is relatively narrow and strict, and the flaring test of the strap is also prone to cracking. Some hard steel strips are chipped and torn during the forming process. When the tensile strength exceeds 635 MPa, the weld quality is more dangerous. Therefore, it is desirable to use mild steel belt or semi-hard steel belt as the blank for packing belt.
