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pISSN : 1598-706X / eISSN : 2288-8381


(논문)연구논문

한국주조공학회지 (17권2호 145-150)

A Study on the Occurrence of the Striation Defect during the Continuous Casting with the Heated Mold

가열주형 연속주조시 발생되는 줄무늬 결함에 관한 연구

Ki-Sung An, Ta-e-Seek Song, Tae-Gu Ji*, Hyung-Ho Jo**, Myung-Han Kim

Chungbuk Nat'l Univ., *Hongik UniV.,, **Academy of Industrial Engineering

Abstract

The striations parallel to the casting direction are the characteristic defects occurring during the unidirectional solidification of nonferrous metals such as pure Al and Sn. It has been known that the defects affect the recrystallization temperature as well as the mechanical and electrical properties of Al. However, it has not been still known about the effect of casting factors such as the casting speed, rod diameter of cast metals, and alloying elements on the occurrence of striations. In the present study, these casting factors affecting the occurrence of striation were investigated by adopting the quantitative examination of striations. Also, the relation between striation defects and feathery grain, which are very similar to the striation defects, was studied.

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