pISSN : 1598-706X / eISSN : 2288-8381
한국주조공학회지 (14권6호 558-565)
A Study on the Unidirectional Solidification of Oxygen Free Copper by the Horizontal Continuous Casting Process
수평식 연속주조법에 제조된 무산소동의 방향성 응고에 관한 연구
Myung-Han Kim, You-Jae Lee*, Hyung-Ho Jo**
Chongbuk National University, *Kumwon Co., **Korea Academy of Industrial Technology
The horizontal continuous casting process with the heated mold was applied to obtain the unidirectionally solidified rods(4~8mm dia.) of pure copper with good surface quality. The results could be summarized as follows. 1. The unidirectional solidification of pure copper rods with good surface(mirror surface) quality could be obtained by placing the S/L interface inside the heated mold cavity even though the cast copper rods were covered with thin copper oxide layer. 2. The casting speed for 4mm dia. rods with mirror surfaces was affected significantly by the mold-cooler distance rather than the cooling flow rate when other casting conditions were fixed. 3. The casting speed was the main factor affecting the oxidation of copper during the continuous casting and the thickness of copper oxide layer decreased almost linearly as the casting speed increased.