韩国开发屈强比控制钢

2026-06-29 14:17:23 来源:世界金属导报

韩国材料研究院近期宣布,成功研发“屈强比控制钢制造工艺技术”。该技术可广泛应用于汽车及重型装备用锻件等领域,不仅能替代现有传统材料,更可实现零部件生产成本降低与产品品质提升,为韩国钢铁及锻造产业增强核心竞争力注入新动力。

此次研发的“屈强比控制钢制造工艺技术”,核心突破在于生产流程的革新升级。该技术可将传统汽车及重型装备用锻件生产中,由四道工序构成的热锻工艺,优化为三道工序组成的温锻工艺,直接减少一道生产工序,大幅提升生产效率。尤为关键的是,该技术摒弃了传统的调质处理,采用锻热直接保温固定的方式,有效简化生产流程,实现生产成本的大幅压缩。

该技术的应用场景十分广泛,可深度适配紧固件、轴类等冷锻汽车零部件的工艺革新,既能实现成本控制,又能推动产品特性升级。目前,韩国材料研究院已取得阶段性成果,成功完成8T级、10T级螺栓、导向杆销、球销等汽车用螺栓类产品的试量产,同时顺利实现YRCS屈强比控制钢线材的连续生产,该线材可直接替代传统SWRCH45K、SCM435材料,适配性与实用性突出。

与传统材料相比,新开发的“屈强比控制钢”在性能上实现全面提升:屈服强度、抗拉强度及延伸率均有显著改善,其中疲劳强度更是提升30%以上,可有效延长零部件使用寿命。同时,该材料成分简化为Fe-Mn-Si基础体系,锻后无需额外进行热处理及矫直工序,进一步简化生产流程;其低屈强比特性还能有效降低锻压负荷,延长模具使用寿命,为企业降本提供支撑。此外,通过冷锻与切削加工的有机结合,可同步实现产品品质提升与价格竞争力强化,市场应用前景广阔。

将该技术及新材料应用于不同类型锻件生产,可带来差异化的显著效益,具体如下:在汽车冷锻件领域,省去冷锻后的热处理与矫直工序,结合低屈强比带来的锻压负荷降低、模具寿命延长,可实现综合成本30%以上的缩减;在汽车温锻件领域,可取消温锻后的额外调质处理,使零部件单价降低20%以上,同时通过晶粒细化提升产品切削加工性能;在机械及工程装备切削件领域,通过精准控制屈强比提升切削效率与生产效率,利用使用过程中的加工硬化现象,使零部件疲劳寿命较传统材料提升20%以上。

作为韩国金属材料研发领域的核心机构,韩国材料研究院表示,未来将重点推进该技术向民间企业转移,通过技术转化落地,切实助力韩国钢铁及锻造产业提升整体竞争力,推动行业高质量发展。

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