US2496235A - Method for the continuous casting of metal slabs - Google Patents

Method for the continuous casting of metal slabs Download PDF

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Publication number
US2496235A
US2496235A US784466A US78446647A US2496235A US 2496235 A US2496235 A US 2496235A US 784466 A US784466 A US 784466A US 78446647 A US78446647 A US 78446647A US 2496235 A US2496235 A US 2496235A
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United States
Prior art keywords
slab
mold
continuous casting
wall
passage
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Expired - Lifetime
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US784466A
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English (en)
Inventor
Rossi Irving
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Individual
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Individual
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Filing date
Publication date
Priority to LU29617D priority Critical patent/LU29617A1/xx
Application filed by Individual filed Critical Individual
Priority to DEP46587D priority patent/DE824546C/de
Priority to US784466A priority patent/US2496235A/en
Priority to GB15665/49A priority patent/GB665774A/en
Priority to FR989398D priority patent/FR989398A/fr
Priority to CH275203D priority patent/CH275203A/de
Priority to BE490728D priority patent/BE490728A/xx
Application granted granted Critical
Publication of US2496235A publication Critical patent/US2496235A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/041—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for vertical casting

Definitions

  • This invention relates to methods for the continuous casting of metal slab, it being understood that the term slab as used herein, denotes a rectangular section having a. width which greatly exceeds the thickness thereof.
  • a typical slab for which the method is well adapted might have dimensions in the neighborhood of 9" x for example.
  • Figure 1 is a. top plan view, partly in section.
  • Figure 2 is a section on the line 2-2 of Figure 1.
  • Figure 3 is a section on the line fltl of Figure 1.
  • Figure l is a. top plan view, partly in section showing a. modified form of apparatus.
  • all of the heat which is withdrawn from the molten metal to cause solidification thereof is withdrawn through one surface of the slab by means of a chilled flat mold wall which is opposed to one surface of the slab only.
  • crystal growth proceeds in a direction substantially perpendicular to said chilled mold wall and toward an opposite mold wall maintained at a temperature such as to prevent any appreciable withdrawal of heat.
  • Said opposite mold wall serves to limit the crystal growth proceeding outwardly from the chilled mold wall, however, and forms and smooths the opposed slab surface as the slab is withdrawn continuously therefrom.
  • the apparatus comprises a mold block ll of any suitable heat resisting material such as graphite, said block having a cavity 2 in its upper portion serving as a reservoir in which a pool of molten metal may be maintained, such molten metal being supplied continuously from a suitable holding furnace (not shown) through a. pipe or tube 3, the discharge end of which should be submerged in the molten metal pool.
  • the said mold block may be supported in any suitable manner, as by a base plate 4.
  • a rectangular passage 6 registering with a similarly shaped but somewhat larger aperture 1 in the base plate.
  • A. water cooled shell B projects downwardly into the passage 6, the said shell being so formed, in the preferred embodiment illustrated in Figures 1, 2 and 3, as to permit the simultaneous casting of two separate slabs 5, 5'.
  • the shell comprises two relatively thin, fiat side walls 9 and I0, end walls H and i2 and a bottom wall I3 and within this shell are mounted two baflle plates 14 and 15.
  • the lower edges of the bafile plates are spaced from the bottom wall of the shell in order to permit cooling water to circulate within, the mandrel.
  • Suitable inlet and outlet connections are provided for water circulation, such connections being preferably adapted to introduce the cooling water into the space between the bafiles so that it may circulate in the direction indicated by the arrows in Figure 3.
  • the shell is mounted to slide in guide members such as channels it and H, also preferably made of graphite, in order that vertical reciprocating motion may be imparted to the shell during the casting operation, such reciprocating motion to be preferably in accordance with the teachings of Junghans Patent No. 2,135,183. That is, the shell which provides the cooling surface and which, therefore, corresponds to the chilled mold of the Junghans patent, would be reciprocable, moving downwardly with the slab at the same rate at which the slab is being withdrawn, and moving upwardly at a more rapid rate.
  • the longitudinal flanges of the channels I [i and H, together with the side walls 9 and ill of the shell and the parallel walls 118 and W of the passage 6 define two mold passages 2
  • the only chilled surface is that provided by the walls 9 and id, for the channels (6 and H are kept hot by the pool of molten metal, and under most conditions the heat from the molten metal will also keep the mold block I at a temperature sufficient to prevent any appreciable withdrawal of heat through the walls 18 and I9.
  • the mold block may be provided with passages 22 to receive suitable heating elements by means of which the block may be maintained at any desired temperature.
  • the bottom wall 63 of the shell may be provided with a plurality of apertures 23 suitably spaced and angled to permit some of the cooling water to spray against the inside walls of the emerging slabs.
  • spray pipes 24 may be located below the point of emergence of the slabs from the mold passage to spray cooling water against the outside walls of the slabs. These sprays serve to carry ofi the residual heat remaining in the slabs after the solidification of the molten metal which results entirely from the withdrawal of heat through the chilled surfaces 9 and it of the shell.
  • FIG. 4 A modified form of apparatus adapted for easting a single slab is illustrated in Figure 4 in which a single mold passage at is formed between the chilled plate 32 of the shell and he wall 33 of the mold block, with the ends of the passage being formed by the channels 34 and 35 in which the shell slides as previously described.
  • the shell comprises a back plate 36 and end plates 31 and 38 with a bafiie 39 to control the circulation of cooling water as before. The operation is as previously described, with crystal growth proceeding outwardly from the chilled surface 32 toward the wall 33 which is heated by the pool of molten metal in the cavity of the mold block.
  • a method for the continuous casting of metal slab which comprises shaping one face of the slab by means of a water cooled fiat surface which constitutes the sole means for the withdrawal of heat to cause solidification of the molten metal whereby crystal growth proceeds outwardly from said surface, limiting the outward crystal growth by means of a mold wall spaced from said fiat surface, maintaining said mold wall at a temperature sufiicient to prevent appreciable withdrawal of heat therethrough, and continuously withdrawing the solidified slab, the relative movement between the slab and said mold wall serving to smooth the outwardly growing crystals as final solidification takes place.
  • a method for the continuous casting of metal slab which comprises shaping one face of the slab by means of a water cooled fiat surface which constitutes the sole means for the withdrawal of heat to cause solidification of the molten metal whereby crystal growth proceeds outwardly from said surface, limiting the outward crystal growth by means of a mold wall spaced from said fiat surface, maintaining said mold wall at a temperature sufficient to prevent appreciable withdrawal of heat therethrough, continuously withdrawing the solidified slab,'the relative movement between the slab and said mold wall serving to smooth the outwardly growing crystals as final solidification takes place, and reciprocating said water cooled fiat surface in timed relation to the withdrawal of the solidified slab such that said surface moves downwardly with the slab at the same rate at which the slab is withdrawn, and moves upwardly at a more rapid rate.
  • a method for the continuous casting of metal slab which comprises maintaining a pool of molten metal in a mold block having a mold passage extending therethrough, withdrawing heat to solidify molten metal entirely through a water cooled fiat surface extending into said mold passage on one side thereof so that crystal growth proceeds entirely outwardly from said surface toward the opposed wall of said mold passage and is limited thereby, and withdrawing the solidified slab continuously from said passage, the relative movement between the slab and wall of the mold passage serving to smooth the outwardly growing crystals as final solidification takes place.
  • a method for the continuous casting of metal slab which comprises maintaining a pool of molten metal in a mold block having a mold passage extending therethrough, withdrawing heat to solidify molten metal entirely through a water cooled fiat surface extending into said mold passage on one side thereof so that crystal growth proceeds entirely outwardly from said surface toward the opposed wall of said mold passage and is limited thereby, withdrawing the solidified slab continuously from said passage, the relative movement between the slab and wall of the mold passage serving to smooth the outwardly growing crystals as final solidification takes place, and reciprocating said water cooled fiat surface in timed relation to the withdrawal of the solidified slab such that said surface moves downwardly with the slab at the same rate at which the slab is withdrawn, and moves upwardly at a more rapid rate.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
US784466A 1947-11-06 1947-11-06 Method for the continuous casting of metal slabs Expired - Lifetime US2496235A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
LU29617D LU29617A1 (en(2012)) 1947-11-06
DEP46587D DE824546C (de) 1947-11-06 1947-11-06 Verfahrn und Anlage zum kontinuierlichen Giessen von Metallplatten
US784466A US2496235A (en) 1947-11-06 1947-11-06 Method for the continuous casting of metal slabs
GB15665/49A GB665774A (en) 1947-11-06 1949-06-13 Methods and apparatus for the continuous casting of metal slab
FR989398D FR989398A (fr) 1947-11-06 1949-06-21 Procédé et dispositif pour la coulée continue des largets de métal
CH275203D CH275203A (de) 1947-11-06 1949-06-22 Verfahren und Einrichtung zum kontinuierlichen Giessen von Metallblechen.
BE490728D BE490728A (en(2012)) 1947-11-06 1949-08-19

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US784466A US2496235A (en) 1947-11-06 1947-11-06 Method for the continuous casting of metal slabs
GB15665/49A GB665774A (en) 1947-11-06 1949-06-13 Methods and apparatus for the continuous casting of metal slab

Publications (1)

Publication Number Publication Date
US2496235A true US2496235A (en) 1950-01-31

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US784466A Expired - Lifetime US2496235A (en) 1947-11-06 1947-11-06 Method for the continuous casting of metal slabs

Country Status (7)

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US (1) US2496235A (en(2012))
BE (1) BE490728A (en(2012))
CH (1) CH275203A (en(2012))
DE (1) DE824546C (en(2012))
FR (1) FR989398A (en(2012))
GB (1) GB665774A (en(2012))
LU (1) LU29617A1 (en(2012))

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2553921A (en) * 1949-04-12 1951-05-22 Jordan James Fernando Continuous casting apparatus
US2584704A (en) * 1948-09-07 1952-02-05 Harry L Horn Strip casting machine
US2707813A (en) * 1950-11-25 1955-05-10 Sidney M Dickson Apparatus for forming seamless tubes and coating tubular sections
US2770022A (en) * 1952-12-08 1956-11-13 Joseph B Brennan Method of continuously casting molten metal
US2782473A (en) * 1953-03-20 1957-02-26 Joseph B Brennan Continuous casting method and apparatus
US2864137A (en) * 1952-10-25 1958-12-16 Helen E Brennan Apparatus and method for producing metal strip
US3429365A (en) * 1964-12-28 1969-02-25 Mannesmann Ag Continuous slab casting mold

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH439600A (de) * 1966-10-06 1967-07-15 Wertli Alfred Verfahren zum Stranggiessen eines Bandes und Einrichtung zum Durchführen des Verfahrens
EP0404974B2 (de) * 1989-06-28 1995-12-13 Wieland-Werke Ag Stranggiesskokille zum senkrechten Bandgiessen von Metallen
CN115319036B (zh) * 2022-08-17 2023-10-24 巢湖云海镁业有限公司 一种镁及镁合金的热顶铸造装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1476967A (en) * 1922-02-03 1923-12-11 Ludlow Typograph Co Strip-forming mechanism
US1548618A (en) * 1921-08-22 1925-08-04 Lane John Burr Apparatus for the manufacture of pipes, tubes, or analogous articles from lead or the like
US1943351A (en) * 1930-12-15 1934-01-16 Cleveland Graphite Bronze Co Method and means for forming bimetal strips for bearing sleeves
US2007301A (en) * 1933-04-26 1935-07-09 Frank J Lemieux Means for making spacers, rules, or the like
US2135183A (en) * 1933-10-19 1938-11-01 Junghans Siegfried Process for continuous casting of metal rods
US2166006A (en) * 1936-11-23 1939-07-11 Harbord Frank William Apparatus for casting metal
US2225416A (en) * 1937-05-08 1940-12-17 Junghans Siegfried Continuous casting process
DE705767C (de) * 1937-07-20 1941-05-09 Siegfried Junghans Verfahren zum Ununterbrochenen Giessen von Verbundmetallstraengen

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1548618A (en) * 1921-08-22 1925-08-04 Lane John Burr Apparatus for the manufacture of pipes, tubes, or analogous articles from lead or the like
US1476967A (en) * 1922-02-03 1923-12-11 Ludlow Typograph Co Strip-forming mechanism
US1943351A (en) * 1930-12-15 1934-01-16 Cleveland Graphite Bronze Co Method and means for forming bimetal strips for bearing sleeves
US2007301A (en) * 1933-04-26 1935-07-09 Frank J Lemieux Means for making spacers, rules, or the like
US2135183A (en) * 1933-10-19 1938-11-01 Junghans Siegfried Process for continuous casting of metal rods
US2166006A (en) * 1936-11-23 1939-07-11 Harbord Frank William Apparatus for casting metal
US2225416A (en) * 1937-05-08 1940-12-17 Junghans Siegfried Continuous casting process
DE705767C (de) * 1937-07-20 1941-05-09 Siegfried Junghans Verfahren zum Ununterbrochenen Giessen von Verbundmetallstraengen

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2584704A (en) * 1948-09-07 1952-02-05 Harry L Horn Strip casting machine
US2553921A (en) * 1949-04-12 1951-05-22 Jordan James Fernando Continuous casting apparatus
US2707813A (en) * 1950-11-25 1955-05-10 Sidney M Dickson Apparatus for forming seamless tubes and coating tubular sections
US2864137A (en) * 1952-10-25 1958-12-16 Helen E Brennan Apparatus and method for producing metal strip
US2770022A (en) * 1952-12-08 1956-11-13 Joseph B Brennan Method of continuously casting molten metal
US2782473A (en) * 1953-03-20 1957-02-26 Joseph B Brennan Continuous casting method and apparatus
US3429365A (en) * 1964-12-28 1969-02-25 Mannesmann Ag Continuous slab casting mold

Also Published As

Publication number Publication date
FR989398A (fr) 1951-09-12
GB665774A (en) 1952-01-30
CH275203A (de) 1951-05-15
LU29617A1 (en(2012))
BE490728A (en(2012)) 1949-09-15
DE824546C (de) 1951-12-13

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