14MnNbq钢板在4200mm轧机的轧制工艺

Rolling Process of 14MnNbq Plate on 4200mm Mill

本文依据含铌钢的特性,结合舞钢轧钢厂的生产实际,对加热、轧制、热处理工艺进行优化,生产出机械性能、表面质量均达到技术条件要求的14MnNbq钢板,现已用于目前我国跨度最大的芜湖长江大桥。

This article,based on features of Nb -bearing steel and considering the production practice of Plate-rolling Plant of Wuyang Steel, optimizes reheating.rolling and heat treatment processes.resulting in the production of 14MnNbq Plate which conforms to requirements of technical specification both in me-chanical properties and surface quality,the plate has been used in the Wuhu Yangtze River Bridge which has the longest span now in our country.