位置:中游情绪:利好参考度:2/10
2025年10月24日,日本制铁株式会社成功申请一项名为“双相不锈钢钢材和双相不锈钢焊接接头”的专利,申请公布号为CN120835938A,申请日期为2024年3月8日。
该发明聚焦于双相不锈钢钢材,其核心成果是通过使用不含氮的保护气体进行无填料焊接,制得的焊接金属强度大于或等于母材部强度。 这一特性对于双相不锈钢在各类工程应用中的可靠性与稳定性具有关键意义。
具体来看,本公开的双相不锈钢钢材化学成分有着精确的质量百分比界定。其中,C含量处于0.001 – 0.030% ,Si含量在1.00%以下,Mn为0.05 – 5.00% ,P不超...
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这种不含氮保护气体的无填料焊接技术,在实际工程应用中真能确保双相不锈钢的可靠性与稳定性吗?