发明名称 Method and apparatus for removing a nozzle insert from a steelmaking ladle
摘要 A nozzle extraction tool for removing a worn nozzle insert from a steelmaking vessel. The nozzle extraction tool including a support frame, a gripper assembly, and a drive piston for applying a force to the gripper assembly. The gripper assembly includes pivotal gripper arms and a rod assembly for pivoting and rotating the gripper assembly 360 DEG about the longitudinal axis of the worn nozzle insert. The rod assembly enables the gripper arms to be securely seated against the uneven surfaces of the worn discharge bore extending through the nozzle insert.
申请公布号 US5337470(A) 申请公布日期 1994.08.16
申请号 US19930053924 申请日期 1993.04.26
申请人 BETHLEHEM STEEL CORPORATION 发明人 HOFFMAN, JOHN P.;NESTLER, ALVIN M.;WITEK, EDWARD T.;IDSTEIN, DONALD J.
分类号 B22D41/50;(IPC1-7):B23P19/00 主分类号 B22D41/50
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