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1. CN1326389 - Stopper rod

Office
China
Application Number 99813461.9
Application Date 16.11.1999
Publication Number 1326389
Publication Date 12.12.2001
Grant Number 1094400
Grant Date 20.11.2002
Publication Kind C
IPC
B22D 41/18
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
41Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
14Closures
16stopper-rod type, i.e. a stopper-rod being positioned downwardly through the vessel and the metal therein, for selective registry with the pouring opening
18Stopper-rods therefor
CPC
B22D 41/186
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
41Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
14Closures
16stopper-rod type, i.e. a stopper-rod being positioned downwardly through the vessel and the metal therein, for selective registry with the pouring opening
18Stopper-rods therefor
186with means for injecting a fluid into the melt
B22D 41/18
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
41Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
14Closures
16stopper-rod type, i.e. a stopper-rod being positioned downwardly through the vessel and the metal therein, for selective registry with the pouring opening
18Stopper-rods therefor
Applicants Vesuvius Crucible Co.
维苏维尤斯·克鲁斯布公司
Inventors E. Hanse
埃里克·汉斯
Agents yi yongmei
中国国际贸易促进委员会专利商标事务所
Priority Data 9800838 20.11.1998 BE
9800839 20.11.1998 BE
Title
(EN) Stopper rod
(ZH) 塞棒
Abstract
(EN)
The present invention concerns a stopper rod whose gas tightness and rigidity are improved. In particular, the stopper rod of the present invention has means for maintaining the compression of the sealing gasket (11, 11') in contact with the annular sealing surface (10) of the body of refractory material when the stopper rod is brought to a high temperature. According to one embodiment of the invention, these means are furnished by a sleeve (12) comprised of a material with a high coefficient of thermal expansion, the dilatation of which maintains the sealing gasket under compression when the stopper rod is brought to a high temperature.

(ZH)

本发明涉及一种塞棒,该塞棒的气密性和刚性增强。尤其是,本发明的塞棒有用于在塞棒达到高温时保持使密封垫圈(11、11’)与耐火材料体的环形密封表面(10)接触的压紧力的装置。根据本发明的一个实施例,该装置由具有较高热膨胀系数的材料的衬套(12)提供,该衬套的膨胀使得密封垫圈在塞棒达到高温时保持压紧。