침지노즐

Submerged entry nozzle

Abstract

PURPOSE: A submerged nozzle is provided to prevent a nozzle body from being eroded by fundamentally blocking a mold flux layer and the nozzle body from being contacted. CONSTITUTION: A submerged nozzle includes a nozzle body (110) and an erosion blocking unit. The nozzle body injects molten steel in a tundish to the inside of a mold. The erosion blocking unit is inserted in the nozzle body, and prevents the nozzle body and the mold flux layer from being contacted with each other. The nozzle body has a roughly upright tube shape which is perpendicularly installed on the lower part of a tundish. The erosion blocking unit includes an erosion prevention block (122) which is inserted to be slidable, and a supporting member (126) which is melted by molten steel which is injected into a casting mold when continuous casting is implemented.
본 발명은 침지노즐에 슬라이딩 가능하게 끼워지는 침식차단수단을 구비함으로써, 몰드 플럭스층과 노즐본체가 접촉하는 것을 원천적으로 막아 노즐본체가 침식되는 것을 방지할 수 있는 침지노즐에 관한 것으로, 턴디쉬 내의 용강을 주형의 내부로 주입하는 노즐본체; 및 노즐본체의 하부를 통해 슬라이딩 가능하게 끼워져 노즐본체와 몰드 플럭스층이 접촉되는 것을 방지하는 침식차단블록을 가지는 침식차단수단;을 포함한다.

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