EP0451929A3 - Method for determination and regulating the level of a metal melting bath - Google Patents

Method for determination and regulating the level of a metal melting bath Download PDF

Info

Publication number
EP0451929A3
EP0451929A3 EP19910250076 EP91250076A EP0451929A3 EP 0451929 A3 EP0451929 A3 EP 0451929A3 EP 19910250076 EP19910250076 EP 19910250076 EP 91250076 A EP91250076 A EP 91250076A EP 0451929 A3 EP0451929 A3 EP 0451929A3
Authority
EP
European Patent Office
Prior art keywords
liquid
regulating
inert gas
determined
level
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.)
Granted
Application number
EP19910250076
Other languages
German (de)
Other versions
EP0451929B1 (en
EP0451929A2 (en
Inventor
Ewald Dipl.-Ing. Feuerstacke
Gerhard Stadtfeld
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6404388&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0451929(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mannesmann AG filed Critical Mannesmann AG
Publication of EP0451929A2 publication Critical patent/EP0451929A2/en
Publication of EP0451929A3 publication Critical patent/EP0451929A3/en
Application granted granted Critical
Publication of EP0451929B1 publication Critical patent/EP0451929B1/en
Anticipated expiration legal-status Critical
Revoked 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
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/20—Controlling or regulating processes or operations for removing cast stock
    • B22D11/201—Controlling or regulating processes or operations for removing cast stock responsive to molten metal level or slag level

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Chemically Coating (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Control Of Non-Electrical Variables (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

The invention relates to a method for determining and regulating the liquid metal level in a metallurgical vessel, especially an open-ended die of a casting plant. In order to provide a method in which the liquid level can be determined and regulated in a simple and reproducible manner, it is proposed that inert gas be introduced into the molten metal at a certain freely selectable point within the vessel, that the flow rate and absolute pressure of the inert gas introduced be measured, that the absolute pressure measured when the zero value of the flow rate is exceeded be recorded and the actual value of the distance of the surface of the liquid from the point at which the inert gas is introduced be determined from the difference between the absolute pressure and the pressure acting on the surface of the liquid, that the difference from a predetermined setpoint value be determined from the said distance ascertained and fed as an electric actuating signal to an actuator for regulating the liquid metal level and/or the quantity flowing out or withdrawn from the vessel. <IMAGE>
EP91250076A 1990-04-11 1991-03-15 Method for determination and regulating the level of a metal melting bath Revoked EP0451929B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4012039A DE4012039A1 (en) 1990-04-11 1990-04-11 METHOD FOR DETERMINING AND REGULATING THE BATH MIRROR OF A METAL MELT
DE4012039 1990-04-11

Publications (3)

Publication Number Publication Date
EP0451929A2 EP0451929A2 (en) 1991-10-16
EP0451929A3 true EP0451929A3 (en) 1993-03-17
EP0451929B1 EP0451929B1 (en) 1997-05-02

Family

ID=6404388

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91250076A Revoked EP0451929B1 (en) 1990-04-11 1991-03-15 Method for determination and regulating the level of a metal melting bath

Country Status (8)

Country Link
US (1) US5170839A (en)
EP (1) EP0451929B1 (en)
JP (1) JP2977318B2 (en)
AT (1) ATE152380T1 (en)
AU (1) AU639307B2 (en)
CA (1) CA2040238C (en)
DE (2) DE4012039A1 (en)
ES (1) ES2100926T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2677284B1 (en) * 1991-06-07 1993-08-27 Pechiney Aluminium PROCESS AND APPARATUS FOR AUTOMATIC CASTING OF SEMI-PRODUCTS.
DE4344953C2 (en) * 1993-12-27 1996-10-02 Mannesmann Ag Method and device for casting a metal strip close to its final dimensions
US20050200056A1 (en) * 2004-03-12 2005-09-15 Heraeus Electro-Nite International N.V. Apparatus and method for determining fluid depth
CN101862819B (en) * 2010-06-18 2011-05-11 新星化工冶金材料(深圳)有限公司 Control mechanism capable of automatically adjusting height of liquid level and magnesium alloy plate continuously-casting system thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2417357A1 (en) * 1978-02-18 1979-09-14 British Aluminium Co Ltd METHOD AND DEVICE FOR DIRECT CASTING IN NON-FERROUS METAL SHELL

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE129433C (en) *
US2889596A (en) * 1957-02-26 1959-06-09 British Iron Steel Research Casting of metals
JPS55149761A (en) * 1979-05-10 1980-11-21 Mishima Kosan Co Ltd Continuous casting control device
DE2931199A1 (en) * 1979-08-01 1981-02-19 Endress Hauser Gmbh Co ARRANGEMENT FOR MEASURING THE BATH MIRROR IN A CASTING PLANT, IN PARTICULAR IN THE CHOCOLATE OF A CONTINUOUS CASTING PLANT
JPS5740699A (en) * 1980-08-26 1982-03-06 Doryokuro Kakunenryo Method of grasping radioactive waste furnace state
DE3317474A1 (en) * 1983-05-13 1984-11-15 Russ-Elektroofen Produktions-Gesellschaft mbH & Co KG, 5000 Köln LOW-PRESSURE CASTING METHOD AND DEVICE FOR ITS IMPLEMENTATION
DE3346650A1 (en) * 1983-12-20 1985-06-27 Schweizerische Aluminium Ag, Chippis Process and apparatus for the determination and control of a level of a metal melt
JPS60180654A (en) * 1984-02-29 1985-09-14 Nippon Steel Corp Method and device for controlling shape of bath surface in mold for continuous casting
SU1282954A1 (en) * 1984-07-27 1987-01-15 Краматорский Научно-Исследовательский И Проектно-Технологический Институт Машиностроения Method of feeding molten metal to the mould of continuous casting machine
JPS6221447A (en) * 1985-07-17 1987-01-29 Nippon Steel Corp Method for controlling blowing of gas with immersion nozzle for continuous casting
JPS62252649A (en) * 1986-04-25 1987-11-04 Nippon Steel Corp Divagating flow control method in mold for molten steel continuous casting
JPS642467A (en) * 1987-06-25 1989-01-06 Toshiba Corp Image reader
JP2605573B2 (en) * 1993-01-27 1997-04-30 株式会社栗本鐵工所 Switching valve for fluid line containing solid matter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2417357A1 (en) * 1978-02-18 1979-09-14 British Aluminium Co Ltd METHOD AND DEVICE FOR DIRECT CASTING IN NON-FERROUS METAL SHELL

Also Published As

Publication number Publication date
CA2040238C (en) 1998-06-09
JPH04228249A (en) 1992-08-18
EP0451929B1 (en) 1997-05-02
ES2100926T3 (en) 1997-07-01
ATE152380T1 (en) 1997-05-15
US5170839A (en) 1992-12-15
AU7272591A (en) 1991-10-17
DE59108687D1 (en) 1997-06-05
CA2040238A1 (en) 1991-10-12
DE4012039A1 (en) 1991-10-17
AU639307B2 (en) 1993-07-22
JP2977318B2 (en) 1999-11-15
EP0451929A2 (en) 1991-10-16

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