公开(公告)号：US20210001398A1

公开(公告)日：2021-01-07

申请号：US16978270

申请日：2019-02-13

Applicant: KROSAKIHARIMA CORPORATION

Inventor： Kouji KAWARADA ,  Kouichi TACHIKAWA

IPC: B22D41/56

Abstract: Provided is a sealing block installation structure capable of preventing the occurrence of a gap between a nozzle or plug installed in a bottom portion of a molten metal vessel and a plate or the like located on the lower side of the nozzle or plug, and a gap between the nozzle or plug and a sealing block located on the upper side of or on the outer peripheral side of the nozzle or plug. In the seating block installation structure, a seating block 2 disposed to surround a nozzle for discharging therethrough molten metal downwardly from the bottom portion of the molten metal vessel or a plug is fixed to a shell of the bottom portion of the molten metal vessel by a connecting member 3.

公开(公告)号：US20230032307A1

公开(公告)日：2023-02-02

申请号：US17965000

申请日：2022-10-13

Applicant: KROSAKIHARIMA CORPORATION

Inventor： Kouji KAWARADA ,  Kouichi TACHIKAWA

IPC: B22D41/56

Abstract: Provided is a seating block installation structure capable of preventing the occurrence of a gap between a nozzle or plug installed in a bottom portion of a molten metal vessel and a plate or the like located on the lower side of the nozzle or plug, and a gap between the nozzle or plug and a seating block located on the upper side of or on the outer peripheral side of the nozzle or plug. In the seating block installation structure, a seating block disposed to surround a nozzle for discharging therethrough molten metal downwardly from the bottom portion of the molten metal vessel or a plug is fixed to a shell of the bottom portion of the molten metal vessel by a connecting member.

公开(公告)号：US20190337050A1

公开(公告)日：2019-11-07

申请号：US16475174

申请日：2017-12-08

Applicant: KROSAKIHARIMA CORPORATION ,  NIPPON STEEL CORPORATION

Inventor： Shinichi FUKUNAGA ,  Kouji KAWARADA ,  Kohei TANI ,  Masashi OIKAWA

IPC: B22D41/24 ,  B22D11/10 ,  B22D41/42

Abstract: In a sliding nozzle comprising three plates consisting of an upper plate, an intermediate plate capable of a sliding movement, and a lower plate, it is intended to suppress adhesion and deposition of metal oxides and others on wall surfaces of inner bores of the three plates. The intermediate plate has: a first inclined portion whose surface defines a slidingly closing directional leading-side wall surface of an inner bore thereof and extends obliquely downwardly in a diametrically contracting direction; a second inclined portion whose surface defines an upper part of a slidingly closing directional trailing-side wall surface of the inner bore thereof and extends obliquely downwardly in a diametrically contracting direction, and a third inclined portion whose surface defines a lower part of the slidingly closing directional trailing-side wall surface of the inner bore thereof and extends obliquely downwardly in a diametrically expanding direction.