Q420B高强度角钢炼钢工艺研究与控制

The research and the regulation on the process of steel-making of Q420B which is the angle iron with high strength

本文介绍了Q420B高强度角钢的炼钢工艺研究与控制，作者认为通过采用合理的钒氮微合金化工艺和合理的冶炼、精炼、连铸工艺，能生产出质量和轧材性能均符合有关标准要求的Q420B高强度角钢。

This paper introduced the research and the regulation on the process of steel-making of Q420B.By the equitable process of smelting, refining, continuous casting and microalloying with V and N, we can get the Q420B which is up to the standard of quality and performance.