兴澄特钢在高难度中厚板产品的开发上取得实践性成果
发布日期：2024-02-07
近日轴承网悉，经过兴澄特钢特板事业部一年多的研究试制及开发认证，船用超低温韧性钢5Ni/9Ni钢于3月19日至3月20日通过ABS、CCS、DNV、BV、GL、KR六国船级社的型式试验认证，这代表着中厚板的最高水平。通过严格的检验证明，该钢种钢水关键成分控制已经达到较高水平，钢板力学性能稳定，具备较为优异的低温冲击韧性、低温时效冲击韧性的发展，标志着兴澄特钢在开发高难度中厚板产品的实践中取得了又一次里程碑式进步。
而在船用方面，5Ni/9Ni钢主要应用于液化天然气的存储和运输，是低温钢材产品中技术水平最高、难度最大、附加值也最高的产品之一。9Ni钢低温冲击韧性要求极高，冶炼过程工艺窗口窄、难度系数大；连铸漏钢风险大，铸坯裂纹敏感性极强；铸坯加热、轧制工艺要求特殊，成材率低，失败风险高。能否生产此类产品，是代表一个钢铁企业整体技术水平的重度指标。
轴承网记者还了解到，为加快兴澄特板产品结构优化调整、不断提高兴澄特板产品档次，特板事业部始终致力于高技术附加值产品的开发。未来攻克这一难关，特板事业部还于2014年成立攻关组，将5Ni/9Ni钢的研发试制、认证工作做为重点项目工作进行攻关。在5Ni/9Ni钢开发中，特板研究所产品研发人员与炼钢、轧钢、热处理分厂现场的一线技术人员紧密合作，立足兴澄特钢目前现有工装条件设备，充分利用了多年来新品开发积累的经验技术，通过扎实的技术调研和工艺准备，积极探索、大胆实践，研发了具有兴澄特色的5Ni/9Ni生产工艺流程，自主创新设计了成分体系和炼钢、轧钢工艺、热处理工艺，攻克了镍系低温钢在冶炼、轧制、热处理技术难题10余项。
本次5Ni/9Ni钢的一次性通过认证，这标志着兴澄特板5Ni/9Ni钢生产技术达到了世界顶尖水平线，为兴澄迈进船用低温钢领域取得了敲门砖，并将带动洁净钢、高合金、高表面质量特点的一系列钢种研发，对兴澄中厚板产品结构的优化升级具有着举足轻重的意义。
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