WO2005080027A1 - Dispositif compose d'un recipient verseur chauffant et d'un socle chauffant - Google Patents

Dispositif compose d'un recipient verseur chauffant et d'un socle chauffant Download PDF

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Publication number
WO2005080027A1
WO2005080027A1 PCT/DE2005/000066 DE2005000066W WO2005080027A1 WO 2005080027 A1 WO2005080027 A1 WO 2005080027A1 DE 2005000066 W DE2005000066 W DE 2005000066W WO 2005080027 A1 WO2005080027 A1 WO 2005080027A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas
vessel
casting vessel
tight
casting
Prior art date
Application number
PCT/DE2005/000066
Other languages
German (de)
English (en)
Inventor
Günter PHILIPPS
Original Assignee
INDUGA Industrieöfen und Giesserei-Anlagen GmbH & Co. KG
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 INDUGA Industrieöfen und Giesserei-Anlagen GmbH & Co. KG filed Critical INDUGA Industrieöfen und Giesserei-Anlagen GmbH & Co. KG
Publication of WO2005080027A1 publication Critical patent/WO2005080027A1/fr

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
    • B22D41/005—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like with heating or cooling means
    • B22D41/01—Heating means
    • B22D41/015—Heating means with external heating, i.e. the heat source not being a part of the ladle
    • 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
    • B22D41/02—Linings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B14/06—Crucible or pot furnaces heated electrically, e.g. induction crucible furnaces with or without any other source of heat
    • F27B14/061—Induction furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B14/08—Details peculiar to crucible or pot furnaces
    • F27B14/10—Crucibles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B14/08—Details peculiar to crucible or pot furnaces
    • F27B14/14—Arrangements of heating devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D11/00—Arrangement of elements for electric heating in or on furnaces
    • F27D11/06—Induction heating, i.e. in which the material being heated, or its container or elements embodied therein, form the secondary of a transformer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0006—Electric heating elements or system
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/22—Furnaces without an endless core
    • H05B6/24—Crucible furnaces

Definitions

  • the invention relates to a heatable, a refractory lining and an outer, provided with slots in the lower metal jacket casting vessel for molten metal, in particular for aluminum melts, and a heating system with a magnetic coil device in which the casting vessel is detachable on the stationary heating station is put on.
  • Such a device is the subject of WO 03/047792 A1.
  • this device has the advantage that the vessel used can be used both as a transport vessel and as a holding alloy and / or degassing vessel and as a casting vessel, from which desired batches are removed by means of a ladle or by tilting the vessel.
  • the metal melt transferred from a melting vessel into the casting vessel is transferred in the casting container to a heating stand, where the casting vessel is placed or inserted and the melt can be heated inductively, thereby generating a bath movement.
  • post-treatments such as degassing, grain refining or even alloy adjustments can also be carried out in the casting vessel before the molten metal is made available to a casting plant, for example a mold casting or a continuous casting plant. Since the molten metal can remain in one and the same vessel from melting to the casting station, refilling processes are eliminated, so that the dreaded burn-up (oxidation) or other gas absorption, in particular of hydrogen, is essentially ruled out.
  • the casting vessel described in WO 03/047792 has a fireproof lining and an outer metal jacket which has slot-shaped openings in the lower region which are located at the level of the magnetic coil when the casting vessel is attached.
  • the slots mentioned prevent a large-scale generation of eddy currents in a structurally simple manner, which could lead to overheating and damage to the ladle.
  • this design has the disadvantage that gas, in particular hydrogen in the air, is caused by the Slots reach the refractory lining, diffuse through it and can penetrate into the melt, which in some circumstances can lead to the melt quality becoming so poor in a short time that the casting process has to be stopped.
  • the refractory lining consists of a gas-tight material or a gas-tight composite body.
  • a gas-tight material or a gas-tight composite body in the sense of the present invention means either an essentially homogeneous one-piece body or such a multi-layer composite body, the gas permeability of which is reduced to a technically acceptable minimum.
  • the ceramics known from the prior art do not meet these requirements, which is why, according to a further development of the invention, the refractory lining made of a clay graphite or a silicon zium carbide exists.
  • the clay graphite or silicon carbide lining is coated on the outer wall with a temperature-stable glaze.
  • the clay graphite consists of 40-45% C, 18-24% SiC, 17-20% Si0 2 , 5-8% Si and 8-10% Al 2 0 3 (all figures in% by weight).
  • the glaze which is preferably used contains 60% NaO, the rest borates and other additives.
  • a composite body made of a refractory crucible material which can also be a ceramic, and a gas-tight barrier layer made of a clay graphite or silicon carbide, the gas-tight barrier layer being arranged between the crucible material and the metal jacket.
  • FIG. 1 shows a cross section through a casting vessel known according to the prior art, which is coupled to a heating stand,
  • Fig. 3 is a schematic sketch of a casting vessel according to the present invention.
  • FIG. 4 shows a detailed view Z according to FIG. 3.
  • the casting vessel 1 shown in FIG. 1 and known from WO 03/047792 A1 is placed on a heating stand 2.
  • the casting vessel 1 has an upper region with a diameter Di of 1,100 mm, an intermediate region in which the diameter tapers, and a lower region with a diameter D 2 of 500 mm, which is adapted to the geometry of the ladle used.
  • the dimensions shown result in a filling capacity of approx. 2 to (2000 kg) aluminum.
  • the vessel has an outer metal jacket 4, which is made of a non-ferromagnetic material in the lower area, z. B. VA steel.
  • the coil 5 and the yokes 7 are installed in a common frame 8, which can be raised and lowered, as is made visible by the double arrow 9.
  • the collar-shaped area 11 serves as a supporting surface on a correspondingly ring-shaped surface of a heating station.
  • the casting vessel 1 is in any case releasably connected to the heating station 2, so that it can be used on or in the heating station 2, after which a field can be induced by means of the magnetic coil 5, which causes a bath movement in the melt and supplies heat to the melt ,
  • the heating station 2 can in particular be arranged next to a casting plant with a plurality of casting molds, so that the desired batch can then be removed from the vessel and poured using a ladle 12.
  • the outer metal jacket of the casting vessel is in the lower region, i. H. provided at the level of the magnetic coil 5 with slots 13 which run longitudinally axially and project above the magnetic coil or its longitudinal axial height in each case above and below.
  • the length of the slots is at least 1.2 times the longitudinal axial length of the magnet coil.
  • a clay graphite or silicon carbide is used instead of a refractory ceramic, a material that is gas-tight from a technical point of view. Since this material also has good insulation properties and is resistant to high temperatures, optimum mechanical strength, in particular dimensional stability of the casting vessel 1 is achieved in conjunction with the metal jacket even at high temperatures.
  • a refractory multilayer lining can also be used, which is made of a ceramic, which is melted turned first material layer 14, a gas-tight barrier layer 15, which is arranged between the well-insulating ceramic layer 14, which is however relatively porous, and the metal jacket 16. All materials that are sufficiently temperature-stable in connection with the ceramic layer 14 and its thickness and the resulting thermal insulation come into consideration as the barrier layer material.
  • an inner layer of clay graphite or silicon carbide facing the molten metal can also be used as composite materials, which are coated on the outside with a glaze, which then fulfills the function of a gas barrier layer.
  • the particular advantage of the design of the casting vessel according to the invention is that, on the one hand, as mentioned, the casting vessel has good dimensional stability at all possible temperatures, the energy required for heating and bath movement of the melt can be supplied inductively with practically no losses, and the design effort of the casting vessel is low in comparison to the alternatives proposed according to the prior art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

L'invention concerne un récipient verseur comportant une enveloppe métallique et, dans sa partie inférieure, plusieurs évidements en forme de fentes, ce récipient étant placé de manière amovible sur un socle chauffant doté d'un solénoïde. L'invention est caractérisée en ce que le revêtement réfractaire est constitué par une matière étanche aux gaz ou par un élément composite étanche aux gaz.
PCT/DE2005/000066 2004-02-19 2005-01-19 Dispositif compose d'un recipient verseur chauffant et d'un socle chauffant WO2005080027A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410008044 DE102004008044A1 (de) 2004-02-19 2004-02-19 Aus heizbarem Gießgefäß und einem Heizstand bestehende Vorrichtung
DE102004008044.5 2004-02-19

Publications (1)

Publication Number Publication Date
WO2005080027A1 true WO2005080027A1 (fr) 2005-09-01

Family

ID=34832801

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2005/000066 WO2005080027A1 (fr) 2004-02-19 2005-01-19 Dispositif compose d'un recipient verseur chauffant et d'un socle chauffant

Country Status (2)

Country Link
DE (1) DE102004008044A1 (fr)
WO (1) WO2005080027A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104475692A (zh) * 2015-01-09 2015-04-01 苏州诺瑞达新材料科技有限公司 一种铝水流槽及制作工艺
EP3440419A4 (fr) * 2017-06-07 2020-03-25 Inductoheat, Inc. Support sans rail de billettes à l'intérieur de serpentins de chauffage par induction électrique

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112683056B (zh) * 2020-12-04 2022-08-02 曲靖云铝淯鑫铝业有限公司 一种加快高质量釉层形成的烘炉工艺

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD147467A3 (de) * 1978-11-14 1981-04-08 Helmut Vogt Verfahren zur herstellung von schmelztiegeln
US4583230A (en) * 1983-09-09 1986-04-15 Nippon Steel Corporation Apparatus for induction heating of molten metal
EP0439900A2 (fr) * 1990-01-31 1991-08-07 Inductotherm Corp. Appareil de chauffage à induction et procédé
RU1778193C (ru) * 1989-07-03 1992-11-30 Магнитогорский металлургический комбинат Футеровка металлургических печей
EP0612201A2 (fr) * 1993-02-19 1994-08-24 Inductotherm Corp. Dispositif de chauffage améliorée pour poche à induction et fours sous vide
WO2003047792A1 (fr) * 2001-12-04 2003-06-12 INDUGA Industrieöfen und Giesserei-Anlagen GmbH & Co. KG Dispositif constitue d'un cuve de coulee pouvant etre chauffee et d'un four-poche

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD147467A3 (de) * 1978-11-14 1981-04-08 Helmut Vogt Verfahren zur herstellung von schmelztiegeln
US4583230A (en) * 1983-09-09 1986-04-15 Nippon Steel Corporation Apparatus for induction heating of molten metal
RU1778193C (ru) * 1989-07-03 1992-11-30 Магнитогорский металлургический комбинат Футеровка металлургических печей
EP0439900A2 (fr) * 1990-01-31 1991-08-07 Inductotherm Corp. Appareil de chauffage à induction et procédé
EP0612201A2 (fr) * 1993-02-19 1994-08-24 Inductotherm Corp. Dispositif de chauffage améliorée pour poche à induction et fours sous vide
WO2003047792A1 (fr) * 2001-12-04 2003-06-12 INDUGA Industrieöfen und Giesserei-Anlagen GmbH & Co. KG Dispositif constitue d'un cuve de coulee pouvant etre chauffee et d'un four-poche

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 199350, Derwent World Patents Index; Class M24, AN 1993-402595, XP002329080 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104475692A (zh) * 2015-01-09 2015-04-01 苏州诺瑞达新材料科技有限公司 一种铝水流槽及制作工艺
CN104475692B (zh) * 2015-01-09 2017-02-22 苏州诺瑞达新材料科技有限公司 一种铝水流槽及制作工艺
EP3440419A4 (fr) * 2017-06-07 2020-03-25 Inductoheat, Inc. Support sans rail de billettes à l'intérieur de serpentins de chauffage par induction électrique

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