US3749149A - Method and an electro-beam furnace for ingot production - Google Patents

Method and an electro-beam furnace for ingot production Download PDF

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Publication number
US3749149A
US3749149A US00139464A US3749149DA US3749149A US 3749149 A US3749149 A US 3749149A US 00139464 A US00139464 A US 00139464A US 3749149D A US3749149D A US 3749149DA US 3749149 A US3749149 A US 3749149A
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United States
Prior art keywords
electron
mold
metal
partition
ingot
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Expired - Lifetime
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US00139464A
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English (en)
Inventor
B Paton
I Pryanishnikov
R Misjura
P Kucherenko
A Tikhonovsky
J Kurapoy
V Topilin
I Perepelitsa
B Movchan
V Zhuchin
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Individual
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Individual
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Priority claimed from SU7001439144A external-priority patent/SU302964A1/ru
Priority claimed from SU7001439143A external-priority patent/SU302954A1/ru
Application filed by Individual filed Critical Individual
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Publication of US3749149A publication Critical patent/US3749149A/en
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/16—Remelting metals
    • C22B9/22—Remelting metals with heating by wave energy or particle radiation
    • C22B9/228—Remelting metals with heating by wave energy or particle radiation by particle radiation, e.g. electron beams

Definitions

  • the method of the present invention provides for melting a metal charge in an electron-beam furnace over a tundish and for solidifying molten metal in a mould the capacity of which is increased in a horizontal direction as it is filled with hot metal.
  • the capacity of the mould is increased by moving its trough-shaped casing in a horizontal plane relative to its internal partition.
  • the internal partition is lifted for a distance equal to the thickness of the previous solidified layer of the ingot.
  • Electronbeam surface for realizing this method includes a vac uum chamber, a charger, and electron guns.
  • an electron-beam furnace for the realization of this method, comprising a vertical mould whose capacity can be varied by moving or lowering a dummy-bar relative to the stationary mould.
  • the metal charge is melted over either the mould r or a tundish from which the molten metal is transferred into the mould.
  • n solidification one obtains round or square ingots which have to be forged into flat slabs before they can be made into sheets.
  • electron-beam furnaces using these prior-art moulds it is impossible to obtain ingots in the form of flat slabs and to avoid the expensive operation of forging or rolling the'ingots into flat slabs.
  • these electron-beam furnaces produce multi-layer cast slabs.
  • ingots are pulled out of the mould, and this results in tears and cracks on the surface of the ingot, impairing its quality.
  • the present invention is directed to providing a method for ingot production and an electron-beam furnace for the realization of this method which will cut down the cost of slab production for sheets by producing cast slabs for sheets directly in the electron-beam furnace.
  • the invention also aims to improve the surface quality of the resultant flat slabs, including multi-layer slabs.
  • the present invention relates to a method for ingot production by melting a metal charge in an electron-beam furnace having a constant-capacity tundish and a variable-capacity mould, in which, according to the invention, the capacity of the mould is increased in a horizontal direction as it is filled with hot metal.
  • This method cuts down the cost of slab production for sheets by eliminating the forging or rolling of ingots into flat slabs prior to sheet production.
  • the internal partition can be lifted for a distance equal to the thickness of the previous solidified layer of the ingot, and the mould can be brought back to its starting capacity, after which the feed of hot metal can be resumed.
  • the mould can be brought back to its starting capacity, after which the feed of hot metal can be resumed.
  • an electron-beam furnace including a vacuum chamber fitted with a charger and enclosing electron guns, at water-cooled tundish, and a water-cooled mould, in which, according to the invention, the mouldis made in the form of a trough-shaped receiver mounted so that it can be moved in a horizontal plane relative to an internal partition fastened inside the vacuum chamber.
  • This type of furnace cuts down the cost of production of slabs for sheets, since cast slabs for sheets are produced directly in the furnace, so that the foregoing or rolling of ingots prior to sheet production can be dispensed with. This furnace also improves the quality of the ingot surface.
  • an electronbeam furnace which has a vacuum chamber 1 fitted with a device not shown in the drawing to charge the metal 2 to be melted and enclosing electron guns 3, 4 and 5.
  • a tundish 6 made fast to the vacuum chamber 1 of the electron-beam furnace.
  • the bottom of the vacuum chamber 1 has a rail track 7 on which is riding a trolley 8 coupled by a tie-bar to a reciprocating mechanism-- not shown in the drawing-which actuates the trolley in a horizontal plane.
  • the reciprocating mechanism can have a mechanical or a hydraulic drive.
  • the trolley 8 carries a trough-shaped receiver 10 with a transverse internal partition 11 coupled by hollow tie-bars 12 to a lifting mechanism-not shown in the drawing-which lifts the partition.
  • the lifting mechanism can have a mechanical or a hydraulic drive. Cooling water is fed into the tundish 6 by means of hollow tie-bars 13, into the trough-shaped receiver 10 by means of hollow tiebars 14, and to the internal partition 1 l by means of the hollow tie-bars 12.
  • the electron-beam furnace for realizing the method according to the invention operates as follows:
  • the charger-not shown in the drawing feeds the source material 2 into the melting zone where it melts under the action of the electron gun 3.
  • the molten metal 2 trickles into the tundish 6 where it is further heated by the electron gun 4 and from which it overflows into the horizontal trough-shaped receiver 10.
  • the metal collected in the receiver 10 is heated by the electron gun 5.
  • the trolley 8 carrying the receiver 10 is moved to the right, which, in the embodiment in question, is carried out by a reciprocating mechanism not shown in the drawing.
  • the reciprocating mechanism may have a mechanical or a hydraulic drive.
  • the distance between the internal partition 11 and the end wall is of the receiver 10 is increased, and molten metal fills the increased capacity of the receiver 10.
  • the metal cools and begins to solidify away from the end wall 15 towards the partition 1 1 of the receiver 10. This produces the first layer 16 of an ingot.
  • the electron guns 3, 4, and 5 are turned off, the internal partition is lifted for a distance equal to the thickness of the first solidified layer 16 of the ingot by a lifting mechanism-not shown in the drawing, and the receiver mounted on the trolley 8 in this embodiment is brought back to its starting position by the reciprocating mechanism-not shown in the drawing-so that the wall is brought close to the partition 11.
  • the electron guns 3, 4, and 5 are turned on again, and a second layer 17 of the ingot begins to be formed.
  • This second layer may be made of the same or any other metal, as desired.
  • a method for the production of slab-like ingots comprising the steps of melting metal in an electronbeam furnace over a tundish; transferring the molten metal from said tundish into a mold made in the form of a trough-like tray whose length is divided by a vertical partition extending transverse said tray; moving said mold horizontally lengthwise relative to said partition to increase the volume of the space to be filled with liquid metal; and pouring molten metal into said mold to form the slab-like ingot.
  • An electron-beam furnace for the production of slab-like ingots comprising a vacuum chamber; charging means to supply said chamber with metal to be remelted; electron-beam guns to melt said metal within said electron-beam furnace; a water-cooled tundish for molten metal located within said vacuum chamber; a mold in the form of a trough-like tray adapted to move lengthwise in a horizontal direction; a vertical partition within said chamber adapted to enter the mold space of said mold and transversely divide it; and means for moving said mold lengthwise in a horizontal plane relative to said partition so as to increase the volume of the molding space.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Toxicology (AREA)
  • Plasma & Fusion (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Furnace Details (AREA)
  • Continuous Casting (AREA)
US00139464A 1970-06-15 1971-05-03 Method and an electro-beam furnace for ingot production Expired - Lifetime US3749149A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SU7001439144A SU302964A1 (ru) 1970-06-15 1970-06-15 Установка дл получени слитков металла
SU7001439143A SU302954A1 (ru) 1970-06-15 1970-06-15 Способ полу енчени слитков в электроннолучевой печи

Publications (1)

Publication Number Publication Date
US3749149A true US3749149A (en) 1973-07-31

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ID=26665396

Family Applications (1)

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US00139464A Expired - Lifetime US3749149A (en) 1970-06-15 1971-05-03 Method and an electro-beam furnace for ingot production

Country Status (3)

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US (1) US3749149A (https=)
DE (1) DE2122752C3 (https=)
FR (1) FR2095251B1 (https=)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3916977A (en) * 1973-01-12 1975-11-04 Rotterdamsche Droogok Mij B V Method and an apparatus for building up sheet material from welding metal
US4121647A (en) * 1975-05-22 1978-10-24 Paton Boris E Method of producing a multilayer metal ingot by the electro-beam remelting of billets
US4187741A (en) * 1977-01-03 1980-02-12 Nyman Bengt E Power regenerative transmission
EP0169884A4 (en) * 1984-01-12 1986-05-16 Demetron Inc PROCESS FOR CASTING IN VACUUM PUSH.
EP0146314A3 (en) * 1983-12-07 1987-02-04 Hitachi, Ltd. Method of producing a high-purity metal member
US5121329A (en) * 1989-10-30 1992-06-09 Stratasys, Inc. Apparatus and method for creating three-dimensional objects
DE19743695A1 (de) * 1997-10-02 1999-06-10 Ald Vacuum Techn Gmbh Verfahren und Vorrichtung zum Einschmelzen und Umschmelzen von Materialien zu Blöcken
CN104896927A (zh) * 2015-06-05 2015-09-09 无锡蠡湖增压技术股份有限公司 一种节能型焙烧炉

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3916977A (en) * 1973-01-12 1975-11-04 Rotterdamsche Droogok Mij B V Method and an apparatus for building up sheet material from welding metal
US4121647A (en) * 1975-05-22 1978-10-24 Paton Boris E Method of producing a multilayer metal ingot by the electro-beam remelting of billets
US4187741A (en) * 1977-01-03 1980-02-12 Nyman Bengt E Power regenerative transmission
EP0146314A3 (en) * 1983-12-07 1987-02-04 Hitachi, Ltd. Method of producing a high-purity metal member
EP0169884A4 (en) * 1984-01-12 1986-05-16 Demetron Inc PROCESS FOR CASTING IN VACUUM PUSH.
US5121329A (en) * 1989-10-30 1992-06-09 Stratasys, Inc. Apparatus and method for creating three-dimensional objects
EP0426363A3 (en) * 1989-10-30 1993-10-06 Stratasys Inc Apparatus and method for creating three-dimensional objects
US5340433A (en) * 1989-10-30 1994-08-23 Stratasys, Inc. Modeling apparatus for three-dimensional objects
EP0833237A3 (en) * 1989-10-30 1998-04-22 Stratasys Inc. Apparatus and method for creating three-dimensional objects
DE19743695A1 (de) * 1997-10-02 1999-06-10 Ald Vacuum Techn Gmbh Verfahren und Vorrichtung zum Einschmelzen und Umschmelzen von Materialien zu Blöcken
CN104896927A (zh) * 2015-06-05 2015-09-09 无锡蠡湖增压技术股份有限公司 一种节能型焙烧炉
CN104896927B (zh) * 2015-06-05 2016-08-31 无锡蠡湖增压技术股份有限公司 一种节能型焙烧炉

Also Published As

Publication number Publication date
FR2095251B1 (https=) 1974-12-20
DE2122752B2 (de) 1973-05-24
FR2095251A1 (https=) 1972-02-11
DE2122752A1 (de) 1971-12-16
DE2122752C3 (de) 1973-12-13

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