ATE463310T1 - METHOD AND ARRANGEMENT FOR CONTROLLED MOLD FILLING WHEN CASTING METALLIC MATERIALS - Google Patents

METHOD AND ARRANGEMENT FOR CONTROLLED MOLD FILLING WHEN CASTING METALLIC MATERIALS

Info

Publication number
ATE463310T1
ATE463310T1 AT07003469T AT07003469T ATE463310T1 AT E463310 T1 ATE463310 T1 AT E463310T1 AT 07003469 T AT07003469 T AT 07003469T AT 07003469 T AT07003469 T AT 07003469T AT E463310 T1 ATE463310 T1 AT E463310T1
Authority
AT
Austria
Prior art keywords
magnetic field
rho
mean
eta
sigma
Prior art date
Application number
AT07003469T
Other languages
German (de)
Inventor
Sven Eckert
Bernd Willers
Gunther Gerbeth
Vladimir Galindo
Manfred Ziemann
Hans-Walter Katz
Uwe Hewelt
Original Assignee
Forschungszentr Dd Rossendorf
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 Forschungszentr Dd Rossendorf filed Critical Forschungszentr Dd Rossendorf
Application granted granted Critical
Publication of ATE463310T1 publication Critical patent/ATE463310T1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/02—Use of electric or magnetic effects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
    • B22C9/082—Sprues, pouring cups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D23/00—Casting processes not provided for in groups B22D1/00 - B22D21/00

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

Initially, the magnetic induction B 0 of the applied magnetic field exceeds the two values B 1 = 10/d h .>(eta /sigma ) 1/2> and B 2 = (rho U/10sigma d h) 1/2>. Variables invoked include the molten metal: density (rho ), electrical conductivity (sigma ) and dynamic viscosity (eta ). d h is the mean hydraulic diameter of the inlet gate and U is the mean influx velocity of the melt. The initial value B 0 remains constant up to the instant t 1. At the time t1 the melt front has reached the mold cavity, and from this time on, the strength of the magnetic field is reduced under control, to zero. The magnetic field acts at the lower end of the vertical casting channel, before the molten influx turns into the horizontal run (3). It acts at right angles to the flow in a flat rectangular channel (6). Reduction of the magnetic field intensity from the maximum value to zero, is steady and linear. Parameter(s) controlling the magnetic field strength, i.e. B 0, t 1, the duration (t 2-t 1) and the nature of the ramp, are determined from the measured volumetric flow of the molten metal, such that its mean velocity U, at any instant of the casting process, does not exceed the value U max = 10000eta /rho d h. An independent claim is included for the equipment used.
AT07003469T 2006-02-23 2007-02-20 METHOD AND ARRANGEMENT FOR CONTROLLED MOLD FILLING WHEN CASTING METALLIC MATERIALS ATE463310T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006008432A DE102006008432B4 (en) 2006-02-23 2006-02-23 Method for controlled mold filling when casting metallic materials

Publications (1)

Publication Number Publication Date
ATE463310T1 true ATE463310T1 (en) 2010-04-15

Family

ID=37950184

Family Applications (1)

Application Number Title Priority Date Filing Date
AT07003469T ATE463310T1 (en) 2006-02-23 2007-02-20 METHOD AND ARRANGEMENT FOR CONTROLLED MOLD FILLING WHEN CASTING METALLIC MATERIALS

Country Status (3)

Country Link
EP (1) EP1825938B1 (en)
AT (1) ATE463310T1 (en)
DE (1) DE102006008432B4 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010010322B4 (en) 2010-03-04 2011-11-03 Ks Aluminium-Technologie Gmbh Device for filling a gravity casting mold with a liquid melt
DE102013101962B3 (en) * 2013-02-27 2014-05-22 Schuler Pressen Gmbh Casting device and casting process
CN109215481B (en) * 2017-07-08 2021-09-10 汉宸国际工程设计集团有限公司 Three-dimensional model preparation mould for architectural design
CN107498001B (en) * 2017-09-08 2023-08-11 大连理工大学 Sprue cup device with electromagnetic purification treatment for continuous production of ductile iron molds
CN110153373B (en) * 2018-02-13 2020-07-10 中国科学院金属研究所 High-flux preparation method of metal material solidification structure

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1040835A (en) * 1975-06-16 1978-10-24 Vestshell Inc. Method of investment casting
RU1367286C (en) * 1985-02-25 1994-07-15 Всероссийский научно-исследовательский институт авиационных материалов Method of production of castings
JPS63235048A (en) * 1987-03-23 1988-09-30 Shinko Electric Co Ltd Device for pouring small quantity of molten metal in continuous casting apparatus

Also Published As

Publication number Publication date
EP1825938B1 (en) 2010-04-07
DE102006008432B4 (en) 2007-08-30
EP1825938A1 (en) 2007-08-29

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