US3610320A - Unit for manufacturing hollow metal ingots - Google Patents

Unit for manufacturing hollow metal ingots Download PDF

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Publication number
US3610320A
US3610320A US872871A US3610320DA US3610320A US 3610320 A US3610320 A US 3610320A US 872871 A US872871 A US 872871A US 3610320D A US3610320D A US 3610320DA US 3610320 A US3610320 A US 3610320A
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United States
Prior art keywords
rod
ingot
chill mold
branch pipes
secured
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Expired - Lifetime
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US872871A
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English (en)
Inventor
Boris Izrailevich Medovar
Leonty Vasilievich Chekotilo
Rudolf Solomonovich Dubinsky
Viktor Leonidovich Artamonov
Leonid Viktorovich Pavlov
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Individual
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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
    • C22B9/18—Electroslag remelting

Definitions

  • the present invention relates to equipment for electroslag remelting processes, and, more particularly, to apparatus for manufacturing metal ingots by the electroslag remelting of a consumable electrode.
  • It may be employed for manufacturing tubular stack of steels, alloys and metals (ball bearing highly alloyed, heat-resistant, corrosion-resistant, high-strength, structural, etc., including those that are difficult to work), to be subsequently converted into pipes and other articles by pressing, rolling out, rolling and other operations.
  • a unit for manufacturing metal hollow ingots by the electroslag remelting of a consumable electrode comprising a cooled mold accommodating a cooled rod to form the inner cavity of an ingot being made, which is retained on a bottom plate, the mold being provided with branch pipes for supplying and withdrawing a coolant.
  • the rod is secured on the branch pipes and is capable of moving with regard to the mold.
  • the length of an ingot to be made is limited by the height and stability of the branch pipes.
  • the primary object of the present invention is to provide an apparatus for manufacturing hollow metal ingots by the electroslag remelting of a consumable electrode, featuring such an embodiment of a cooled rod which would enable manufacturing ingots of a considerably greater length as compared to the known apparatus.
  • HO. 1 is a general view of the proposed apparatus complete with an ingot being formed, shown in longitudinal sectional view;
  • FIG. 2 is a cross-sectional view of same, taken on line "-11 ofFlG. l.
  • the proposed apparatus comprises a chill mold 1 (FIGS. 1 and 2) accommodating a cooled rod 2 forming the inner cavity of an ingot being r'nade, and a cooled bottom plate 3 intended for retaining the ingot to be formed and provided with an opening 31, into which enters the lower part of the rod 2 at the beginning of the remelting process.
  • a chill mold 1 (FIGS. 1 and 2) accommodating a cooled rod 2 forming the inner cavity of an ingot being r'nade, and a cooled bottom plate 3 intended for retaining the ingot to be formed and provided with an opening 31, into which enters the lower part of the rod 2 at the beginning of the remelting process.
  • branch pipes 4 Secured in the upper part of the rod 2 are branch pipes 4 serving to supply and remove a coolant for the rod 2.
  • the branch pipes 4 are welded or mechanically attached with their one end to the upper part of the rod 2, whereas their opposite end, on which a hose is put for supplying and removing the coolant, passes through the walls of the chill mold 1. The rod 2 is thus retained in the chill mold.
  • this rod With a view to preventing the jamming of the lower part of the rod 2, resulting from a shrinkage of the ingot being formed, this rod is made tapering downwards.
  • a hollow ingot is produced in the proposed apparatus in to the following manner.
  • the chill mold l Prior to starting a heat, the chill mold l is so adjusted that the lower part of the rod 2 enters opening 3a in the bottom late 3. p Then a consumable electrode 5 is introduced into the chill mold 1, liquid slag 6 is poured thereinto according to any known method, and the process is started according to the conventronal electroslag remelting procedure. Fusion of the electrode 5 results in the formation of drops of molten metal, which flow over the upper portion of the rod 2 (as it is shown by arrows in FIG. 1) and over the branch pipes 4 secured therein, thus forming an annular metal bath 7, from which a hollow ingot 8 gradually solidifies.
  • the ingot 8 grows up, it is extracted from the chill mold 1 together with the bottom plate 3 on which it is secured.
  • An embodiment of making a hollow ingot is possible, according to which the ingot together with the bottom plate remains stationary, whereas the chill mold along with the rod secured therein and forming a cavity in the ingot, move upwardly as the ingot is built up.
  • the speed of extracting the ingot or the speed of lifting the chill mold are selected such that the metal bath be lower than the branch pipes.
  • branch pipes are protected against being clogged with metal so that the remelting process is not discontinued.
  • the depth of the slag bath is selected such that it could accommodate the upper part of the rod together with the branch pipes.
  • Such a layer of slag should be provided over the branch pipes and rod, which would enable the normal electroslag remelting process to be effected.
  • the chill mold readily lends itself to be removed from the ingot.
  • the chill mold may be made either as a single piece or split both horizontally and vertically.
  • split chill molds allows easy replacing of one rod by the other one in the case of its wear, and whenever it is required to vary the internal diameter of a casting.
  • the proposed apparatus is advantageous over the existing units of such type in that it allows making quality hollow ingots of a great length, considerably simplifying the equipment (for example, there are not required mechanisms for moving the rod, there is facilitated the retaining of the rod coaxially to the chill mold during the remelting process), and, hence, increasing the productive capacity of the apparatus.
  • One of the advantages of the proposed apparatus consists in a possibility of using therein inexpensive electrodes of a continuous section (for example, cast ones).
  • An apparatus for producing hollow ingots by the electroslag remelting of a consumable electrode comprising: a chill mold, in which a slag bath is created; a water-cooled rod disposed in said chill mold and intended for the formation of the internal cavity of an ingot being formed in the chill mold; a bottom plate, on which said ingot is secured; branch pipes to supply and remove a coolant to and from the said rod, respectively, which branch pipes are secured with one end in the chill mold wall and emerge therefrom, whereas their other ends are secured to the upper part of the said rod, retaining it in said chill mold so that the upper part of the rod together with the branch pipes are found in the slag bath between the consumable electrode and the surface of the ingot being formed.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
US872871A 1968-11-11 1969-10-31 Unit for manufacturing hollow metal ingots Expired - Lifetime US3610320A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1283250 1968-11-11

Publications (1)

Publication Number Publication Date
US3610320A true US3610320A (en) 1971-10-05

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ID=20443806

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US872871A Expired - Lifetime US3610320A (en) 1968-11-11 1969-10-31 Unit for manufacturing hollow metal ingots

Country Status (6)

Country Link
US (1) US3610320A (de)
AT (1) AT298705B (de)
DE (1) DE1952209A1 (de)
FR (1) FR2023004B1 (de)
GB (1) GB1277765A (de)
SE (1) SE346566B (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3687188A (en) * 1971-04-06 1972-08-29 Inst Elektrosvarki Ineni E O P Method and device for producing metal hollow ingots by electroslag remelting
US3807487A (en) * 1971-10-29 1974-04-30 B Paton Apparatus for the electroslag melting of hollow ingots
US3899017A (en) * 1972-08-25 1975-08-12 Ass Elect Ind Apparatus and method for electroslag remelting
US3971430A (en) * 1972-03-10 1976-07-27 Paton Boris E Furnace for electroslag remelting of consumable electrodes
US3990499A (en) * 1971-03-16 1976-11-09 Paton Boris E Apparatus for making ingots by electroslag remelting
US3999595A (en) * 1975-07-08 1976-12-28 Boris Izrailevich Medovar Apparatus for melting hollow metal ingots during electroslag remelting of consumable electrodes
US4146077A (en) * 1977-10-25 1979-03-27 Cabot Corporation Methods and apparatus for making cast hollows
US5158227A (en) * 1992-05-21 1992-10-27 Arc Tube Inc. Process of making seamless metal tube

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3118928A1 (de) * 1981-05-13 1982-12-02 Thyssen Industrie Ag, 4300 Essen Verfahren und vorrichtung zur herstellung von dickwandigen, hohlen gussstuecken
DE3418145A1 (de) * 1984-05-16 1985-11-21 Elefant-Chemie Fritz Breuhan, 3000 Hannover Fassadenplatte sowie mit fassadenplatten hergestelltes wandelement
DE3501740A1 (de) * 1985-01-19 1986-07-24 Herbert 7530 Pforzheim Heinemann Verfahren zum beschichten von paneelen, sowie paneele zum durchfuehren des verfahrens

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2388974A (en) * 1944-05-20 1945-11-13 Kellogg M W Co Method for casting metal
US2397789A (en) * 1944-05-09 1946-04-02 Kellogg M W Co Method and apparatus for casting metal
US2405254A (en) * 1943-03-02 1946-08-06 Kellogg M W Co Mold core
US3268958A (en) * 1963-12-19 1966-08-30 Midvale Heppenstall Company Slow pouring and casting system for ferrous and other metals

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2405254A (en) * 1943-03-02 1946-08-06 Kellogg M W Co Mold core
US2397789A (en) * 1944-05-09 1946-04-02 Kellogg M W Co Method and apparatus for casting metal
US2388974A (en) * 1944-05-20 1945-11-13 Kellogg M W Co Method for casting metal
US3268958A (en) * 1963-12-19 1966-08-30 Midvale Heppenstall Company Slow pouring and casting system for ferrous and other metals

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3990499A (en) * 1971-03-16 1976-11-09 Paton Boris E Apparatus for making ingots by electroslag remelting
US3687188A (en) * 1971-04-06 1972-08-29 Inst Elektrosvarki Ineni E O P Method and device for producing metal hollow ingots by electroslag remelting
US3807487A (en) * 1971-10-29 1974-04-30 B Paton Apparatus for the electroslag melting of hollow ingots
US3971430A (en) * 1972-03-10 1976-07-27 Paton Boris E Furnace for electroslag remelting of consumable electrodes
US3899017A (en) * 1972-08-25 1975-08-12 Ass Elect Ind Apparatus and method for electroslag remelting
US3999595A (en) * 1975-07-08 1976-12-28 Boris Izrailevich Medovar Apparatus for melting hollow metal ingots during electroslag remelting of consumable electrodes
US4146077A (en) * 1977-10-25 1979-03-27 Cabot Corporation Methods and apparatus for making cast hollows
US5158227A (en) * 1992-05-21 1992-10-27 Arc Tube Inc. Process of making seamless metal tube

Also Published As

Publication number Publication date
FR2023004A1 (de) 1970-08-07
GB1277765A (en) 1972-06-14
DE1952209A1 (de) 1970-09-24
FR2023004B1 (de) 1973-10-19
AT298705B (de) 1972-04-15
SE346566B (de) 1972-07-10

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