Process Improvement Practice for Improving the Seismic Performance of HRB400E Wire Rod Reinforcement
In response to the instability of the seismic resistance index Agt value of small-sized HRB400E wire rod reinforcement,some of which may even be lower than the national standard,this paper analyzes the factors such as controlling the composition of the wire rod production process and controlling rolling and cooling.Through comparative analysis of experimental results,it is believed that the unqualified seismic resistance index is mainly caused by abnormal metallographic structure of the steel.Therefore,corresponding improvement plans were proposed and achieved good results.
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