水平连铸TP2铜管表面裂纹产生原因及控制措施  

Formation Mechanism and Control Measures on Surface Cracks on TP2 Copper Tube in Horizontal Continuous Casting

作　　者：刘阳[1] 刘劲松[1,2] 张士宏[2] 李海红[2] 吴金虎[2] 

机构地区：[1]沈阳理工大学材料科学与工程学院 [2]中国科学院金属研究所

出　　处：《特种铸造及有色合金》2016年第9期975-979,共5页Special Casting & Nonferrous Alloys

摘　　要：研究了水平连铸生产中TP2铜管表面裂纹缺陷,采用化学成分分析、组织分析、扫描电镜断口分析和能谱分析等方法,分析了表面裂纹形成的原因并提出裂纹控制的措施。根据裂纹产生原因,分别从熔炉纯净度、铸造模具和铸造工艺等方面进行严格控制,明显减少了铜管表面裂纹。Surface cracks on TP2 copper tube in horizontal continuous casting could reduce the final products rate.The formation mechanism of surface cracks on horizontal continuous casting TP2 copper tube and its countermeasures were presented by chemical composition analysis,microstructure observation and SEM,EDS.Based on formation mechanism of crack,through improving purity of furnace and mould design,casting process,surface crack on the copper tube can be eliminated obviously.

关 键 词：水平连铸 表面裂纹 TP2铜管 形成机理 控制措施 

分 类 号：TG249.7[金属学及工艺—铸造] TG146.11[一般工业技术—材料科学与工程]