Title:
STOPPER FOR CONTINUOUS CASTING
Document Type and Number:
WIPO Patent Application WO/2022/259925
Kind Code:
A1
Abstract:
The purpose of the present invention is to suppress adhesion of an intrusive element near a fitting section of a stopper, and to prevent a tip region of the stopper from cracking or delaminating due to a lack of strength. To achieve the foregoing, the present invention provides a stopper 1 for continuous casting that comprises a cavity 11 for gas distribution in the center thereof in a vertical direction, wherein: the stopper has a porous refractory material 12, which is gas-permeable, and a refractory material 13, which has a higher strength than the porous refractory material 12, disposed on an outer peripheral surface side and on an inner peripheral surface side, respectively, of at least a portion of a vertical cross-section of a tip-side region C.
Inventors:
FUKUNAGA SHINICHI (JP)
KAKU TOSHIO (JP)
FURUKAWA HIROKI (JP)
KAKU TOSHIO (JP)
FURUKAWA HIROKI (JP)
Application Number:
PCT/JP2022/022210
Publication Date:
December 15, 2022
Filing Date:
May 31, 2022
Export Citation:
Assignee:
KROSAKIHARIMA CORP (JP)
International Classes:
F27D3/14; B22D11/10; B22D41/18
Foreign References:
| JPH026040A | 1990-01-10 | |||
| JPS50155314U | 1975-12-23 | |||
| JPH0631410A | 1994-02-08 | |||
| JPH03110048A | 1991-05-10 | |||
| JPH0381061A | 1991-04-05 | |||
| KR20160051354A | 2016-05-11 | |||
| JPH10510474A | 1998-10-13 | |||
| JPH026040A | 1990-01-10 | |||
| JPH03110048A | 1991-05-10 |
Attorney, Agent or Firm:
EIWA PATENT FIRM (JP)
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