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WO2002081123A3 - Improved regulation of a stream of molten metal - Google Patents

Improved regulation of a stream of molten metal Download PDF

Info

Publication number
WO2002081123A3
WO2002081123A3 PCT/US2002/009245 US0209245W WO02081123A3 WO 2002081123 A3 WO2002081123 A3 WO 2002081123A3 US 0209245 W US0209245 W US 0209245W WO 02081123 A3 WO02081123 A3 WO 02081123A3
Authority
WO
WIPO (PCT)
Prior art keywords
stream
laminar flow
molten metal
boundary layer
improved regulation
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.)
Ceased
Application number
PCT/US2002/009245
Other languages
French (fr)
Other versions
WO2002081123A2 (en
Inventor
Johan Richaud
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.)
Vesuvius Crucible Co
Original Assignee
Vesuvius Crucible Co
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 Vesuvius Crucible Co filed Critical Vesuvius Crucible Co
Priority to CA002442857A priority Critical patent/CA2442857A1/en
Priority to AU2002250439A priority patent/AU2002250439A1/en
Priority to US10/473,760 priority patent/US20040100002A1/en
Publication of WO2002081123A2 publication Critical patent/WO2002081123A2/en
Anticipated expiration legal-status Critical
Publication of WO2002081123A3 publication Critical patent/WO2002081123A3/en
Ceased 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
    • B22D41/50—Pouring-nozzles
    • 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
    • B22D41/16—Closures stopper-rod type, i.e. a stopper-rod being positioned downwardly through the vessel and the metal therein, for selective registry with the pouring opening
    • B22D41/18—Stopper-rods therefor
    • 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
    • B22D41/28—Plates therefor
    • 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
    • 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
    • B22D41/50—Pouring-nozzles
    • B22D41/58—Pouring-nozzles with gas injecting means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

The invention describes an article (1) and method for reducing precipitation on a surface adjacent to a stream of molten steel that is flowing from one metallurgical vessel to a second metallurgical vessel or mold. The refractory article comprises a working surface having a perturbation (6) that disrupts the laminar flow in a boundary layer adjacent to the surface. The resultant non-laminar flow reduces precipitation on the surface and provides a convenient point for the injection of inert gas. The method includes disrupting the laminar flow in a boundary layer adjacent to the working surface.
PCT/US2002/009245 2001-04-04 2002-03-25 Improved regulation of a stream of molten metal Ceased WO2002081123A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA002442857A CA2442857A1 (en) 2001-04-04 2002-03-25 Improved regulation of a stream of molten metal
AU2002250439A AU2002250439A1 (en) 2001-04-04 2002-03-25 Improved regulation of a stream of molten metal
US10/473,760 US20040100002A1 (en) 2002-03-25 2002-03-25 Regulation of a stream of molten metal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US28157001P 2001-04-04 2001-04-04
US60/281,570 2001-04-04

Publications (2)

Publication Number Publication Date
WO2002081123A2 WO2002081123A2 (en) 2002-10-17
WO2002081123A3 true WO2002081123A3 (en) 2004-04-15

Family

ID=23077846

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/009245 Ceased WO2002081123A2 (en) 2001-04-04 2002-03-25 Improved regulation of a stream of molten metal

Country Status (3)

Country Link
AU (1) AU2002250439A1 (en)
CA (1) CA2442857A1 (en)
WO (1) WO2002081123A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
UA85852C2 (en) * 2003-11-03 2009-03-10 Везувіус Крусібл Компані stopper rod system with RIPPLED surface
ES2754031T3 (en) 2009-01-21 2020-04-15 Refractory Intellectual Property Gmbh & Co Kg Submerged inlet nozzle
CN102268225B (en) * 2011-05-30 2014-03-26 上海百兰朵电子科技有限公司 Permanent-suspension diamond grinding liquid
CN106694866A (en) * 2017-03-28 2017-05-24 马鞍山钢铁股份有限公司 Steel ladle protective sleeve

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1521526A (en) * 1923-02-14 1924-12-30 Godai Ryosaku Nozzle of the ladle for steel casting
US3396877A (en) * 1966-03-10 1968-08-13 Bethlehem Steel Corp Composite nozzle pocket block
GB1270024A (en) * 1968-05-09 1972-04-12 Arbed Method and apparatus for casting a steel ingot
DE3029529A1 (en) * 1980-08-04 1982-03-04 Didier-Werke Ag, 6200 Wiesbaden Bottom pour sliding stopper, esp. for vessels contg. molten steel - where adjacent holes in stopper slides have chamfers increasing resistance of slides to cracking
JPS6289566A (en) * 1985-10-14 1987-04-24 Kawasaki Steel Corp Refractories for flow of molten metal

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1521526A (en) * 1923-02-14 1924-12-30 Godai Ryosaku Nozzle of the ladle for steel casting
US3396877A (en) * 1966-03-10 1968-08-13 Bethlehem Steel Corp Composite nozzle pocket block
GB1270024A (en) * 1968-05-09 1972-04-12 Arbed Method and apparatus for casting a steel ingot
DE3029529A1 (en) * 1980-08-04 1982-03-04 Didier-Werke Ag, 6200 Wiesbaden Bottom pour sliding stopper, esp. for vessels contg. molten steel - where adjacent holes in stopper slides have chamfers increasing resistance of slides to cracking
JPS6289566A (en) * 1985-10-14 1987-04-24 Kawasaki Steel Corp Refractories for flow of molten metal

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 011, no. 296 (M - 627) 25 September 1987 (1987-09-25) *

Also Published As

Publication number Publication date
AU2002250439A1 (en) 2002-10-21
CA2442857A1 (en) 2002-10-17
WO2002081123A2 (en) 2002-10-17

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