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首页> 外文期刊>Wire Journal International >New process metallurgy developments for the production of steel wire rods
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New process metallurgy developments for the production of steel wire rods

机译：钢丝棒生产的新工艺冶金开发

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An advance in improving a 1080 grade steel by the addition of a niobium microalloy was initially met with skepticism due to an incomplete understanding of its effectiveness and lack of recent research. The MicroNiobium Alloy Approach is applied in higher carbon steels and medium-carbon bar products exceeding 0.20% carbon to improve the mechanical property robustness of the steel via grain refinement. This mechanism allows grain refinement from billet to bar to wire rod to be more homogeneous, resulting in improved surface quality, increased productivity and reduced scrap rates throughout the process supply chain, thereby reducing the overall operational cost per ton. The niobium carbides and niobium carbonitrides also assist in pinning the austenite grains during the heating in the billet furnace, limiting abnormal austenite grain growth and inhomogeneous deformation during hot rolling. When operational combustion variations occur due to adiabatic flame temperature problems and/or air-to-gas ratio problems in the furnace, the presence of MicroNiobium in the steel often improves its robustness and minimizes the probability of austenite grain growth during processing of the billet in the reheat furnace.
机译：由于对其有效性和缺乏研究缺乏的研究，最初通过添加铌微基金改善1080级钢的提前。微硫基合金方法适用于高于0.20％碳的较高碳钢和中碳棒产物，以通过晶粒细化改善钢的机械性能鲁棒性。该机制允许从坯料到钢筋到线材更加均匀的晶粒细化，从而提高表面质量，提高生产率和整个过程供应链的废气速率降低，从而降低每吨的整体运营成本。碳化铌和铌碳氮化铌还有助于在坯料炉的加热过程中钉扎奥氏体颗粒，限制了热轧期间奥氏体晶粒生长和不均匀变形。当由于绝热火焰温度问题和/或炉内的空气对气体比问题发生操作燃烧变化时，钢中微米鎓的存在通常会改善其鲁棒性，并最大限度地减少在坯料加工过程中奥氏体谷物生长的概率再热炉。

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