摘要
提出在中试水平的空心铜管坯水平连铸过程中施加工频电磁场,分析其对铜管坯组织和性能的影响。结果表明:与未施加电磁场时相比,施加电流强度为140A的工频电磁场后,水平连铸空心铜管坯的组织显著细化,平均晶粒度由未施加磁场时的3.1提高到8.3,周向组织均匀性也得到明显改善;抗拉强度提高40%左右,延伸率提高50%左右。
In order to improve the quality of hollow Cu tubes, a horizontal continuous casting technology was developed in a pilot scale by using electromagnetic field of commercial frequency, and the effect of electromagnetic field on structure and mechanical properties were studied. The results show that the structure of hollow Cu tubes is refined substantially with the application of electromagnetic field and the average grain grand is increased from 3.1 to 8.3 and the uniformity along the circumference of the structure is improved obviously at the same time. The tensile strength is increased by 40% and the elongation is improved by 50% averagely if compared to those without electromagnetic field.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2006年第7期1126-1128,共3页
Rare Metal Materials and Engineering
基金
国家自然科学基金-上海宝钢"钢铁联合研究基金"资助(50270417)
关键词
电磁场
水平连铸
铜管坯
凝固组织
力学性能
electromagnetic field
horizontal continuous casting
Cu tube
solidification structure
mechanical properties
