| 梁海成,顾力侥,程明,邵俊,韩明奇.SCR法连铸连轧工艺与铸坯缺陷的研究现状[J].有色金属材料与工程,2025,46(4):68-75. |
| SCR法连铸连轧工艺与铸坯缺陷的研究现状 |
| Research status of SCR continuous casting and rolling process and casting billet defects |
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| DOI：10.13258/j.cnki.nmme.20240420001 |
| 中文关键词: SCR连铸连轧 五轮式连铸系统 制备工艺 铸坯缺陷 |
| 英文关键词:SCR continuous casting and rolling five-wheel continuous casting system preparation process defects of casting billet |
| 基金项目:2022年度辽宁省教育厅基本科研项目（LJKMZ20220591） |
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| 中文摘要: |
| 随着电子行业的迅猛发展，我国对铜杆的需求量不断增加。目前，浸没式连续流变铸造（submerged continuous rheocasting, SCR）法连铸连轧是生产铜杆的主要工艺。结合现场SCR7000 光亮铜杆连铸连轧生产线，系统介绍了 SCR 连铸连轧设备、SCR 法连铸连轧生产工艺流程、五轮式浇铸系统基本构造及 SCR 法连铸连轧的核心优势；并重点针对生产过程中的缺陷问题展开探讨，全面综述了铸坯气孔、夹杂、缩孔、裂纹4类典型缺陷的形成机制，同时提出了提高铸坯质量的相应改进措施；通过上述改进，有效预防了缺陷产生，显著提升了成品率；最后，对我国 SCR 连铸连轧生产的未来发展趋势进行了展望。 |
| 英文摘要: |
| With the rapid development of the electronics industry, the demand for copper rod in China has been continuously increasing. At present, the submerged continuous rheocasting (SCR) continuous casting and rolling process is the main technology for copper rod production. Combined with the on-site SCR7000 bright copper rod continuous casting and rolling production line, this paper systematically introduces the SCR continuous casting and rolling equipment, the SCR continuous casting and rolling production process flow, the basic structure of the five-wheel casting system, and the core advantages of the SCR continuous casting and rolling process. It then focuses on the defect issues in the production process, comprehensively summarizes the formation mechanisms of four typical defects in cast billets—porosity, inclusions, shrinkage cavities, and cracks—and proposes corresponding improvement measures to enhance cast billet quality. Through the aforementioned improvements, defects have been effectively prevented and the yield rate has been significantly improved. Finally, the future development trend of SCR continuous casting and rolling production in China is prospected. |
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