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2025 年 8 月 8 日，山西太钢不锈钢股份有限公司成功申请一项重要专利，其名称为“一种降低含 Ti 铁素体不锈钢表面 TiN 类夹杂缺陷的方法” ，申请公布号为 CN120442884A ，申请日期可追溯至同年 4 月 18 日。
此项发明聚焦于降低含 Ti 铁素体不锈钢表面 TiN 类夹杂缺陷，通过优化多环节工艺参数来达成目标。在炼钢成分方面，对精炼过程成分中 TiN 积进行精准控制，使其小于常数 NTiN 。在精炼炉工艺参数上，严格把控调 Al 后的关键指标，将 Al 含量控制在 0.003 ～ 0.006％ ，相对回硅量 RSi 控制在≥20％ 。同时，对精炼炉出炉前的Ɛ..
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