WO2001075183A3 - System for detecting inclusions in molten metals - Google Patents

System for detecting inclusions in molten metals Download PDF

Info

Publication number
WO2001075183A3
WO2001075183A3 PCT/US2001/010371 US0110371W WO0175183A3 WO 2001075183 A3 WO2001075183 A3 WO 2001075183A3 US 0110371 W US0110371 W US 0110371W WO 0175183 A3 WO0175183 A3 WO 0175183A3
Authority
WO
WIPO (PCT)
Prior art keywords
inclusions
molten metals
detection system
detecting
measurement surface
Prior art date
Application number
PCT/US2001/010371
Other languages
French (fr)
Other versions
WO2001075183A2 (en
Inventor
Reinhold Ludwig
Diran Apelian
Sergey Makarov
Original Assignee
Worcester Polytech Inst
Reinhold Ludwig
Diran Apelian
Sergey Makarov
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 Worcester Polytech Inst, Reinhold Ludwig, Diran Apelian, Sergey Makarov filed Critical Worcester Polytech Inst
Priority to BR0107533-0A priority Critical patent/BR0107533A/en
Priority to JP2001573055A priority patent/JP2003535316A/en
Priority to EP01924518A priority patent/EP1268866A2/en
Priority to MXPA02009593A priority patent/MXPA02009593A/en
Priority to CA002404560A priority patent/CA2404560A1/en
Priority to KR1020027012866A priority patent/KR20020095199A/en
Priority to AU2001251167A priority patent/AU2001251167A1/en
Publication of WO2001075183A2 publication Critical patent/WO2001075183A2/en
Publication of WO2001075183A3 publication Critical patent/WO2001075183A3/en
Priority to NO20024613A priority patent/NO20024613L/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4673—Measuring and sampling devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/32—Magnetic separation acting on the medium containing the substance being separated, e.g. magneto-gravimetric-, magnetohydrostatic-, or magnetohydrodynamic separation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/20—Metals
    • G01N33/205—Metals in liquid state, e.g. molten metals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/06—Investigating concentration of particle suspensions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Food Science & Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Medicinal Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Fluid Mechanics (AREA)
  • Investigating And Analyzing Materials By Characteristic Methods (AREA)

Abstract

The present invention relates to systems of methods of detecting and measuring inclusions in liquid metals. More particularly, non-metallic inclusions having a conductivity level different from the liquid metal melt are forced to migrate and are collected on a measurement surface using electromagnetic Lorentz forces. The inclusions and their concentrations are detected at the measurement surface using either an electrostatic detection system or an optical detection system.
PCT/US2001/010371 2000-03-31 2001-03-30 System for detecting inclusions in molten metals WO2001075183A2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
BR0107533-0A BR0107533A (en) 2000-03-31 2001-03-30 Method for detecting and measuring inclusions in a fluid and apparatus for measuring inclusions in a liquid
JP2001573055A JP2003535316A (en) 2000-03-31 2001-03-30 System for detecting and measuring inclusions
EP01924518A EP1268866A2 (en) 2000-03-31 2001-03-30 System for detecting inclusions in molten metals
MXPA02009593A MXPA02009593A (en) 2000-03-31 2001-03-30 Systems for detecting and measuring inclusions.
CA002404560A CA2404560A1 (en) 2000-03-31 2001-03-30 Systems for detecting and measuring inclusions
KR1020027012866A KR20020095199A (en) 2000-03-31 2001-03-30 Systems for detecting and measuring inclusions
AU2001251167A AU2001251167A1 (en) 2000-03-31 2001-03-30 Systems for detecting and measuring inclusions
NO20024613A NO20024613L (en) 2000-03-31 2002-09-26 Systems for detecting and measuring inclusions

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
USPCT/US00/08668 2000-03-31
USPCT/US00/08668 2000-03-31
US70097500A 2000-11-21 2000-11-21
US09/700,975 2000-11-21

Publications (2)

Publication Number Publication Date
WO2001075183A2 WO2001075183A2 (en) 2001-10-11
WO2001075183A3 true WO2001075183A3 (en) 2002-05-23

Family

ID=56290130

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/010371 WO2001075183A2 (en) 2000-03-31 2001-03-30 System for detecting inclusions in molten metals

Country Status (1)

Country Link
WO (1) WO2001075183A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009539599A (en) * 2006-06-15 2009-11-19 エスジーエム ガントリー エス．ピー．エー． Magnetic sorting machine and sorting method for ferromagnetic materials
DE102012023382A1 (en) * 2012-11-30 2014-06-18 Hochschule Trier Device for separating magnetic or magnetizable microparticles from a suspension by means of high-gradient magnetic separation
CN108872364A (en) * 2018-06-29 2018-11-23 中国科学院大学 A kind of defect inspection method based on Lorentz force

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB737005A (en) * 1952-01-31 1955-09-21 Oesterr Alpine Montan Improvements in blowing methods for metal baths, particularly pig iron baths
US3466154A (en) * 1963-08-27 1969-09-09 Japan Atomic Energy Res Inst Method of separating a dispersed phase from a mixed-phase fluid system by electromagnetic force
US5604301A (en) * 1992-04-06 1997-02-18 Mountford; Norman D. G. Ultrasound detection techniques
WO1997022859A1 (en) * 1995-12-20 1997-06-26 Voest-Alpine Industrieanlagenbau Gmbh Method and device for measuring electromagnetic waves emanating from a melt
US5674401A (en) * 1991-12-11 1997-10-07 Computational Systems, Inc. Oil monitor with magnetic field
US5834928A (en) * 1995-10-04 1998-11-10 Alcan International Limited Method and apparatus for the detection and measurement of solid particles in molten metal
WO1999039183A1 (en) * 1998-01-30 1999-08-05 Applied Materials, Inc. Increasing the sensitivity of an in-situ particle monitor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB737005A (en) * 1952-01-31 1955-09-21 Oesterr Alpine Montan Improvements in blowing methods for metal baths, particularly pig iron baths
US3466154A (en) * 1963-08-27 1969-09-09 Japan Atomic Energy Res Inst Method of separating a dispersed phase from a mixed-phase fluid system by electromagnetic force
US5674401A (en) * 1991-12-11 1997-10-07 Computational Systems, Inc. Oil monitor with magnetic field
US5604301A (en) * 1992-04-06 1997-02-18 Mountford; Norman D. G. Ultrasound detection techniques
US5834928A (en) * 1995-10-04 1998-11-10 Alcan International Limited Method and apparatus for the detection and measurement of solid particles in molten metal
WO1997022859A1 (en) * 1995-12-20 1997-06-26 Voest-Alpine Industrieanlagenbau Gmbh Method and device for measuring electromagnetic waves emanating from a melt
WO1999039183A1 (en) * 1998-01-30 1999-08-05 Applied Materials, Inc. Increasing the sensitivity of an in-situ particle monitor

Also Published As

Publication number Publication date
WO2001075183A2 (en) 2001-10-11

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