FR2429063A1 - Bottom pour sliding stopper for ladle contg. molten metal esp. steel - where gas at constant pressure is fed into stopper to prevent steel solidifying in stopper holes - Google Patents

Bottom pour sliding stopper for ladle contg. molten metal esp. steel - where gas at constant pressure is fed into stopper to prevent steel solidifying in stopper holes

Info

Publication number
FR2429063A1
FR2429063A1 FR7819243A FR7819243A FR2429063A1 FR 2429063 A1 FR2429063 A1 FR 2429063A1 FR 7819243 A FR7819243 A FR 7819243A FR 7819243 A FR7819243 A FR 7819243A FR 2429063 A1 FR2429063 A1 FR 2429063A1
Authority
FR
France
Prior art keywords
stopper
gas
plate
contg
hole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
FR7819243A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eurdic SA
Original Assignee
Eurdic SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eurdic SA filed Critical Eurdic SA
Priority to FR7819243A priority Critical patent/FR2429063A1/en
Publication of FR2429063A1 publication Critical patent/FR2429063A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/42—Features relating to gas injection

Abstract

The stopper may be fixed on other vessels, and has a metal frame contg. a stationary refractory stopper plate (I) contg. a hole. Below plate (I) is a sliding, refractory stopper plate (II) in a moving metal frame. Plate (II) possesses two holes, one of which is used to blow pressurised gas into the hole in plate (I) when the stopper is closed. The gas is used to prevent molten metal solidifying in the stopper. The gas is fed to plate (II) via a controller which does not have an external adjusting device but contains a small hole controlling the gas flow independently of the gas pressure (Pa) downstream of the hole. In one of several pref. controllers, gas at an initial pressure (Pg) flows through a filter to a small hole contg. a needle valve adjusted by a screwdriver and then held by a lock nut. Used to obtain a constant flow of gas into the hole in the sliding plate (II). By using the small hole, the gas flow to the stopper remains constant if Pa does not exceed a critical value (Pc) which is usually 50-70% of the initial pressure (Pg).
FR7819243A 1978-06-22 1978-06-22 Bottom pour sliding stopper for ladle contg. molten metal esp. steel - where gas at constant pressure is fed into stopper to prevent steel solidifying in stopper holes Withdrawn FR2429063A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7819243A FR2429063A1 (en) 1978-06-22 1978-06-22 Bottom pour sliding stopper for ladle contg. molten metal esp. steel - where gas at constant pressure is fed into stopper to prevent steel solidifying in stopper holes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7819243A FR2429063A1 (en) 1978-06-22 1978-06-22 Bottom pour sliding stopper for ladle contg. molten metal esp. steel - where gas at constant pressure is fed into stopper to prevent steel solidifying in stopper holes

Publications (1)

Publication Number Publication Date
FR2429063A1 true FR2429063A1 (en) 1980-01-18

Family

ID=9210062

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7819243A Withdrawn FR2429063A1 (en) 1978-06-22 1978-06-22 Bottom pour sliding stopper for ladle contg. molten metal esp. steel - where gas at constant pressure is fed into stopper to prevent steel solidifying in stopper holes

Country Status (1)

Country Link
FR (1) FR2429063A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2533473A1 (en) * 1982-09-28 1984-03-30 Detalle Richard METHOD OF CONTROLLING AND OPENING THE CASTING HOLES OF CONTAINERS CONTAINING LIQUID METALS AND THE LIKE, AND DEVICE FOR IMPLEMENTING SAME
WO1995004622A1 (en) * 1993-08-05 1995-02-16 Foseco International Limited Method and device for unplugging a molten metal discharge port

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2012888A1 (en) * 1968-07-12 1970-03-27 Interstop Ag

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2012888A1 (en) * 1968-07-12 1970-03-27 Interstop Ag

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2533473A1 (en) * 1982-09-28 1984-03-30 Detalle Richard METHOD OF CONTROLLING AND OPENING THE CASTING HOLES OF CONTAINERS CONTAINING LIQUID METALS AND THE LIKE, AND DEVICE FOR IMPLEMENTING SAME
WO1984001315A1 (en) * 1982-09-28 1984-04-12 Richard Detalle Method for the control and opening of casting holes of containers holding liquid metals and device for implementing such method
WO1995004622A1 (en) * 1993-08-05 1995-02-16 Foseco International Limited Method and device for unplugging a molten metal discharge port

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Legal Events

Date Code Title Description
ST Notification of lapse