公开(公告)号：US20170014897A1

公开(公告)日：2017-01-19

申请号：US15121180

申请日：2015-02-05

Applicant: KROSAKIHARIMA CORPORATION

Inventor： Takuya OKADA ,  Takahiro KURODA

IPC: B22D11/103 ,  B22D41/56 ,  B22D41/50

CPC classification number: B22D11/103 ,  B22D11/10 ,  B22D41/50 ,  B22D41/502 ,  B22D41/56

Abstract: An immersion nozzle for use with an immersion nozzle replacement apparatus, capable of preventing crack formation due to the presence of a neck region. The immersion nozzle includes a nozzle body, a flange, and a metal casing. The nozzle body is formed such that a region of an outer peripheral surface thereof located above a point of power of an upward supporting force from a supporting device extends vertically up to an upper edge of the nozzle body without any dimensional change with respect to an central axis of an inner bore of the nozzle body. The outer peripheral surface region is not joined to the metal casing.

Abstract translation: 一种用于浸入式喷嘴更换装置的浸入式喷嘴，能够防止由于存在颈部区域而形成的裂缝。 浸入式喷嘴包括喷嘴体，凸缘和金属壳体。 喷嘴体形成为使得其外周面的位于来自支撑装置的向上支撑力的上方的区域的区域垂直向上延伸到喷嘴体的上边缘，而相对于中心部没有任何尺寸变化 喷嘴体的内孔的轴线。 外周面区域不与金属壳体接合。

公开(公告)号：US20190070661A1

公开(公告)日：2019-03-07

申请号：US16077587

申请日：2017-02-07

Applicant: KROSAKIHARIMA CORPORATION

Inventor： Shinichi FUKUNAGA ,  Takahiro KURODA ,  Tatsuya OOUCHI ,  Takuya OKADA ,  Akira OOTSUKA

IPC: B22D41/56 ,  B22D41/50 ,  B22D11/10

Abstract: In the method for replacing an immersion nozzle while pushing out a used immersion nozzle by a new immersion nozzle, in order to minimize leakage of molten steel during the replacement, to enable the use of a shaped joint sealer in a joint interface, and to ensure high sealability, a concave portion is formed on the new immersion nozzle's upper plane so as to include a nozzle hole, and the shaped joint sealer is mounted in this concave portion. The immersion nozzle's upper plane is caused to slide while being pressed to the upper nozzle's lower plane.

公开(公告)号：US20190030599A1

公开(公告)日：2019-01-31

申请号：US16070934

申请日：2016-11-09

Applicant: KROSAKIHARIMA CORPORATION

Inventor： Shinichi FUKUNAGA ,  Takahiro KURODA ,  Takashi SADANO ,  Takuya OKADA ,  Arito MIZOBE

IPC: B22D41/50 ,  B22D11/10

Abstract: A nozzle structure for discharging molten steel with improved sealing performance. The nozzle structure comprises: a molten steel discharge path having an inner bore; and one or more joints through which the molten steel discharge path is divided at one or more positions in a orthogonal direction with respect to an upward-downward direction of discharge of molten steel, and which join the molten steel discharge path. An inner bore sleeve is formed of a refractory material, and provided on an inner bore surface of the nozzle structure to extend in the upward-downward direction across at least one of the joints.