Optimization and Preparation of Hot Rolled Steel Strip for High Performance Photovoltaic Support
LÜ Fuqiang
LU Feng
SUN Qian
Abstract：In view of the quality upgrading needs of photovoltaic bracket,which is lightweight,high-strengthening and green,the composition design of low carbon,low silicon and micro-titanium is adopted,combined with clean steel smelting control and controlled rolling and cooling technology,to play the role of Ti element precipitation strengthening,optimize the alloy based on the guarantee of good base metal performance,and successfully develop 500 MPa level.High strength hot rolled steel strip for high performance photovoltaic bracket with high surface quality,high extension,easy coating and other processing requirements.The structure of the steel strip is ferrite+pearlite,the yield strength is≥500 MPa,the tensile strength is≥540 MPa,and the elongation after breaking is≥25%.Meet the user's subsequent pickling,cold rolling,continuous annealing and other performance and process requirements,in line with the steel strip after hot galvanized aluminum magnesium surface without leakage plating,no leakage point surface quality requirements.
Keywords：photovoltaic brackethigh performancelightweightmicro titaniumcontrolled rolling and coolinghot platingsurface quality
Publication Date：2025-02-20
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：5( 18-22 )