US3503598A - Composite metal vessel - Google Patents

Composite metal vessel Download PDF

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Publication number
US3503598A
US3503598A US681348A US3503598DA US3503598A US 3503598 A US3503598 A US 3503598A US 681348 A US681348 A US 681348A US 3503598D A US3503598D A US 3503598DA US 3503598 A US3503598 A US 3503598A
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US
United States
Prior art keywords
elements
bands
vessel
refractory
threads
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Expired - Lifetime
Application number
US681348A
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English (en)
Inventor
Louis Babel
Andre Girard
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.)
Imphy SA
Societe Metallurgique dImphy SA
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Societe Metallurgique dImphy SA
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.)
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Publication date
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Assigned to IMPHY S.A., 8 RUE DE LA ROCHEFOUCAULD PARIS, FRANCE reassignment IMPHY S.A., 8 RUE DE LA ROCHEFOUCAULD PARIS, FRANCE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: CREUSOT-LOIRE
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • 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
    • 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

Definitions

  • the invention relates to ya composite vessel, more particularly a ladle with a refractory cylindrical casing, intended to contain molten metal and subjected to highintensity fields produced by an inductive circuit with very low andl low-frequency altern-ating current.
  • the liquid metal in the ladle can be stirred.
  • the non-magnetic casing begins to melt before the frequency and intensity in the field magnet are high enough, it is very difficult, if not impossible, to produce in this metal an induced current of sufficient intensity to maintain the bath temperature, or-as is often desirable-to increase this temperature to the value desired for casting, for example Iduring and after degassing.
  • the object of the invention is to provide a non-magnetic, indeformable casing which has high mechanical resistance, is refractory at high temperatures, is fluid-tight in a vacuum or under pressure, and which can permit passage, without appreciable heating, of high-intensity fields from inductive currents of appropriate frequency.
  • the vessel is constituted, in the heating zone, by assembling profiled metal elements made of a non-magnetic, refractory alloy, for example an austenitic steel, by means of tenons and mortices on these elements, and these elements are electrically insulated from each other by an insulating, refractory seal constituted by a heat-setting cement injected in a substantially liquid state into the continuous interstices between the assembled metal elements.
  • profiled metal elements made of a non-magnetic, refractory alloy, for example an austenitic steel
  • a binder is provided around the heating zone and comprises at least two layers of threads or bands, one layer consisting of threads or bands arranged along the generatrices of the cylindrical casing, and the other layer consisting of threads or bands wound helically around the first layer.
  • FIGURE l is a general perspective view lof a vessel constituting a pouring ladle, with parts cut away;
  • FIGURE 2 shows the bottom of the vessel
  • FIGURE 3 is a perspective view of one of the elements constituting the cylindrical casing of the vessel.
  • FIGURE 4 is a section on a line IV-IV in FIGURE 1, on a larger scale, showing an insulating seal between two elements in the casing.
  • the ladle shown in FIGURE 1 has a cylindrical casing or envelope 1 extending over the entire heating height and assembled from profiled elements 1a.
  • the upper end of the ladle has a cylindrical barrel-plate 2, surmounted by a cover 3 with a pipe 4 and carrying trunnions 5 to allow pivoting.
  • the profiled elements 1a consist of panels such as that shown by way of example in FIGURE 3. This panel has two tenons 1b and two mortices 1c for assembly with the identical adjacent panels.
  • the bottom 3 of the ladle (FIGURE 2) is made in the same manner by assembling fiat panels 3a.
  • the elements 1a, 3a are made of a non-magnetic, refractory alloy, such as an austenitic steel, for example by moulding, within narrow tolerances.
  • the dimensions of the tenons and mortices are such that when the elements are assembled according to the principle of the construction play, small interstices-for example of 1 to 2 mm.- can be left between all the faces of mutual contact between vthe elements.
  • These interstices are formed by means of appropriate packing strips of refractory insulating material, e.g. expanded polystyrene.
  • the packing strips are put in position at the same time as the profiled elements.
  • the cement used is a refractory, heat-setting cement of low viscosity.
  • it may be a slurry composed of a binder based on ethyl silicate, alcohol and refractories of a given grain size distribution, such as sillirnanites, zirconium oxides, etc.
  • the vessel has-according to the invention-a binder in the zone constituted by the assembled elements.
  • This binder is made with threads or bands, such as glass fibres with high mechanical properties or non-magnetic metal wires or bands insulated fromr each other.
  • the threads or bands are arranged in at least two layers.
  • the first layer consists of threads or bands 6y arranged along the generatrices of the cylindrical casing 1.
  • hooks or similar means 7 ⁇ (FIGURE l) are provided on the cylindrical barrel-plate 2 of the vessel, in order to grip the threads or bands, which, under the end 3, are arranged in layers of parallel threads or bands.
  • the second layer consists of threads or ⁇ bands 8 wound helically around the first layer.
  • Each layer is coated with a lacquer or varnish, and finally the assembly is placed in an oven before being taken into service.
  • a composite Huid-tight refractory metal ladle for the treatment of molten metals comprising a cylindrical envelope surmounted by a cover, a heating zone formed by said envelope, a plurality of permanently interlocked rectangular proled non-magnetic refractory metal alloy elements forming said heating zone, mortices and tenons on the sides of each of said elements locking adjacent ones of said elements together and means for electrically insulating said elements from each other comprising an insulating refractory seal of a heat setting cement lling the interstices between said interlocked elements.
  • a composite fluid-tight refractory metal ladle for the treatment of molten metals comprising a cylindrical envelope, a heating zone formed by said envelope, a plurality of interlocked rectangular profiled non-magnetic refractory metal alloy elements forming said heating zone, mortices and tenons on the sides of each of said elements locking adjacent ones of said elements together and means for electrically insulating said elements from each other comprising an insulating refractory seal of a heat setting cement filling the interstices between said CII interlocked elements including a binder around the heating zone comprising at least two layers of'threads or bands for said binder, one of said layers consisting of threads or bands arranged along the generatrices of the cylindrical casing, and the other of said layers consisting of threads or bands wound helically around said References Cited UNITED STATES PATENTS 2,170,254 8/1939 Seil 266-43 2,266,785 12/1941 McLain 266-43 X 3,396,962. 8

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • General Induction Heating (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
US681348A 1966-11-28 1967-11-08 Composite metal vessel Expired - Lifetime US3503598A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR85252A FR1509043A (fr) 1966-11-28 1966-11-28 Enceinte métallique composite

Publications (1)

Publication Number Publication Date
US3503598A true US3503598A (en) 1970-03-31

Family

ID=8621651

Family Applications (1)

Application Number Title Priority Date Filing Date
US681348A Expired - Lifetime US3503598A (en) 1966-11-28 1967-11-08 Composite metal vessel

Country Status (7)

Country Link
US (1) US3503598A (fr)
BE (1) BE705553A (fr)
CH (1) CH473632A (fr)
DE (1) DE1558595B1 (fr)
FR (1) FR1509043A (fr)
GB (1) GB1165938A (fr)
SE (1) SE309827B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4515353A (en) * 1983-03-24 1985-05-07 Sperry Corporation Tundish cover for ductile iron treatment
US5039345A (en) * 1988-04-05 1991-08-13 Advanced Metals Technology Corp. Fiber composite article and method of manufacture
US5880404A (en) * 1996-06-28 1999-03-09 Advanced Metals Technology Corporation Power transmission support structures
US6673306B2 (en) 2001-04-13 2004-01-06 North American Refractories Co. Refractory lining for metallurgical vessel
US20070132162A1 (en) * 2005-12-14 2007-06-14 North American Refractories Co. Impact pad for metallurgical vessels

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0387374A1 (fr) * 1989-03-15 1990-09-19 Vsesojuzny Nauchno-Issledovatelsky Proektno-Konstruktorsky I Tekhnologichesky Inst. Elektrotermicheskogo Oborudovania Vniieto Four de fusion à induction
US8871089B2 (en) * 2010-01-13 2014-10-28 Daniel M. Early Wastewater treatment system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2170254A (en) * 1937-07-01 1939-08-22 E J Lavino & Co Refractory
US2266785A (en) * 1939-08-10 1941-12-23 Mclain William Rex Refractory brickwork
US3396962A (en) * 1967-09-06 1968-08-13 Joseph W. Smith Basic oxygen furnace lining construction

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2170254A (en) * 1937-07-01 1939-08-22 E J Lavino & Co Refractory
US2266785A (en) * 1939-08-10 1941-12-23 Mclain William Rex Refractory brickwork
US3396962A (en) * 1967-09-06 1968-08-13 Joseph W. Smith Basic oxygen furnace lining construction

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4515353A (en) * 1983-03-24 1985-05-07 Sperry Corporation Tundish cover for ductile iron treatment
US5039345A (en) * 1988-04-05 1991-08-13 Advanced Metals Technology Corp. Fiber composite article and method of manufacture
US5880404A (en) * 1996-06-28 1999-03-09 Advanced Metals Technology Corporation Power transmission support structures
US6673306B2 (en) 2001-04-13 2004-01-06 North American Refractories Co. Refractory lining for metallurgical vessel
US20040108637A1 (en) * 2001-04-13 2004-06-10 North American Refractories Co. Refractory lining for metallurgical vessel
US6787098B2 (en) 2001-04-13 2004-09-07 North American Refractories Co. Refractory lining for metallurgical vessel
US20070132162A1 (en) * 2005-12-14 2007-06-14 North American Refractories Co. Impact pad for metallurgical vessels
US7468157B2 (en) 2005-12-14 2008-12-23 North American Refractories Co. Impact pad for metallurgical vessels

Also Published As

Publication number Publication date
FR1509043A (fr) 1968-01-12
DE1558595B1 (de) 1970-09-24
GB1165938A (en) 1969-10-01
BE705553A (fr) 1968-03-01
CH473632A (fr) 1969-06-15
SE309827B (fr) 1969-04-08

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Legal Events

Date Code Title Description
AS Assignment

Owner name: IMPHY S.A., 8 RUE DE LA ROCHEFOUCAULD PARIS, FRANC

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CREUSOT-LOIRE;REEL/FRAME:003884/0241

Effective date: 19810623

Owner name: IMPHY S.A., 8 RUE DE LA ROCHEFOUCAULD PARIS, FRANC

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CREUSOT-LOIRE;REEL/FRAME:003884/0241

Effective date: 19810623