US3451465A - Method and arrangement for introducing lubricating material into a stationary chill for continuous casting of metal - Google Patents

Method and arrangement for introducing lubricating material into a stationary chill for continuous casting of metal Download PDF

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Publication number
US3451465A
US3451465A US566602A US3451465DA US3451465A US 3451465 A US3451465 A US 3451465A US 566602 A US566602 A US 566602A US 3451465D A US3451465D A US 3451465DA US 3451465 A US3451465 A US 3451465A
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United States
Prior art keywords
passage
chill
metal
lubricating material
arrangement
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Expired - Lifetime
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US566602A
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English (en)
Inventor
Guenther Moritz
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Vereinigte Aluminium Werke AG
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Vereinigte Aluminium Werke AG
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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
    • B22D11/07—Lubricating the moulds

Definitions

  • the present invention relates to a method and arrangement for introducing lubricating material during continuous casting of metals in a stationary chill, in which the lubricating material is introduced through a porous Wall portion of the chill.
  • the lubricating material is introduced through a wall portion of the chill in the region in which the molten metal enters the chill, which wall portion is in this region formed from porous material, as for instance graphite or sintered Copper.
  • the introduction of the lubricating material in this case is performed by means of a pump which pumps the lubricating material through the noncooled porous wall portion of the chill into a passage through the latter through which the molten material passes to be cooled and solidified.
  • the lubricating material in this known process is fed in substantally liquid form into the passage of the chill, whereby, when the amount of lubricating material introduced by the pump is not correctly adjusted or during operating troubles, not properly formed metal strands or even an interruption of the casting process may occur due to sudden evaporation of introduced excess lubricating material.
  • a trouble-free operation of the chill the use of an expensive precision pump is necessary, and even with such a pump a trouble free operation will not be assured under all circumstances.
  • the method according to the present invention for introducing lubricating material into a cooled passage of a chill for continuous casting of metal, mainly comprises the steps of continuously feeding molten metal through an opening in a porous heat-resistant member having a cross section smaller than the cooled passage into the latter so that at the junction of said opening and the passage an annular space 'will be formed about the stream of molten metal entering the passage, providing a supply of substantially liquid lubricating material closely adjacent to the aforementioned space in contact with the porous member so that the lubricating material will be transferred by capillary 3,451,465 Patented June 24, 1969 action through a portion of the member into the aforementioned space and be evaporated therein, and continuously withdrawing the lubricating material from the aforementioned space by the stream of metal passing through the passage, whereby the lubricating material will condense on the cooled surface of the passage and form a film of lubricating material between the metal passing through the passage and the surface of the latter.
  • the arrangement for carrying out the aforementioned method mainly comprises a chill having wall means forming a passage therethrough and means for continuously cooling the wall means forming the passage.
  • the passage has an inlet end of given cross section, and the arrangement includes further a member of porous heat-resistant material abutting against the Wall means of the chill in the region of the inlet end of the passage and being formed with an opening therethrough substantially aligned 'with the inlet end of the passage and having a cross section smaller than the latter, and means for continuously feeding molten metal through the opening in the member into the passage, whereby at the junction of the opening and the passage an annular space fre-e of metal will be formed.
  • Channel means are formed in the wall means in the region of the inlet end of the aforementioned passage and closely adjacent to the aforementioned annular space, which passage means are open toward the porous member.
  • 'Ihe channel means are filled with lubricating material, so that the lubricating material will pass by capillary action through the porous member into the forementioned space to be evaporated in the latter and to be taken along by the stream of metal passing through the passage to be condensed on the cooled surface of the passage so as to provide a lubricating film between the metal and the surface definng the passage.
  • a pump is not necessary in this arrangement and the transfer of the lubricating material from the aforementioned channel means into the passage through which the molten metal is introduced will be provided only by capillary action so that an overpressure in the aforementioned passage which could lead to a detachment of the metal strand from the wall of the chill forming the passage and thereby to a disturbance in the casting process, is postively avoided.
  • FIG. l is a partial cross sectional view of an arrangement 'for carrying out the process of the present invention in which the passage through the chill is horizontally arranged;
  • FIG. 2 is a partial cross sectional view of a similar arrangement in which the passage through the chill is vertically arranged.
  • the arrangement according to the present invention comprises a mold or chill 1 formed with an elongated passage la therethrough, only partially shown in FIG. 1, which, in tlhe embodiment shown in FIG. l, extends in substantially horizontal direction.
  • the 'Wall of the chill, and especially the passage la therethrough, is cooled by a water jacket 2, also only partly sho wn in FIG. 1, surrounding the passage la and through w hich cooling Water is circulated in a 'known manner.
  • the inlet end that is the right end of the passage la, as Viewed in FIG.
  • the molten metal As the molten metal enters the cooled passage la, it forms an outer shell 7 of solidified material and a liquid core 8 of molten metal, and the transverse cross section of the outer shell 7 increases while that of the core 8 decreases as the metal passes longitudinally through the passage la so that when the metal leaves the outlet end of the chill, not shown in the drawing, a substantially completely solidified strand of metal is produced which is continuously withdrawn from the chill by means not shown in the drawing. Due to the surface tension of the liquid metal and due to the fact that the cross section of the opening 4 in the plate is smaller than the cross section of the passage la, an outer space 9 free of metal will be formed at the junction of the opening 4 with the passage la, as shown in FIG. 1.
  • Channel means 10 are formed spaced a few millimeters from the space 9 in the end wall of the chill against which the plate 5 abuts.
  • the channel means 10 are open towards the plate 5 and supplied with lubricating material from a reservor of lubricating material, not shown in the drawing, by passages likewise not indicated in FIG. 1.
  • the plate 5 is Lforrned from heat resistant porous material so that the lubricating material in the channel means 10 passes by capillary action into the plate 5 and also to a portion of the latter which borders the space 9. This portion of the plate 5 is heated by the hot liquid metal so that the lubricating material at the surface of this plate portion Will be evaporated.
  • the evaporated lubricating material passes into the space 9 and condenses by contact with the cooled surface of the wall of the chill,
  • the thus condensed lubricating material is taken along by the metal continuously passing through the passage la of the chill so as to form a lubricating film between the metal and the surface of the wall defining the passage la, while additional lubricating material is continuously fed through capillary action from the channel means 10 into the space 9.
  • the plate 5 is preferably divided into two sections Sa and 5b which are coextensive with each other and between which a foil 11, for instance of aluminum, which is imprevious to the lubricating material, is sandwiched so that the lubricating material is confined to the plate section Sa.
  • FIG. 1 illustrates an arrangement for continuous casting of metal in horizontal direction
  • FIG. 2 illustrates an arrangement in which the metal is continuously cast in vertical ⁇ direction and in which the passage la' through the chill 1' extends therefore in vertically downward direction.
  • the wall of the chill 1' -forming the passage la' therethrough is again cooled by an outer water jacket 2' and in the arrangement shown in F IG. 2 an annular member 5' of porous heat resistant material is arranged at the inlet or upper end of the passage 1' through which molten metal to be cast is continuously fed in a manner known per se into the passage la' of the chill.
  • Channel means 10' are formed closely adjacent to the aforementioned space 9' in the inner wall of the chill 1' and the passage means 10' are filled with lubricating material in the manner as described above, which lubricating material will be transferred into the space 9' by capillary action through a portion o f the porous member 5' to form a lubricating film between the outer solidified portion 7' of the cast metal and the inner sur- .4 face of the wall of the chill defining the passage la' to facilitate downward movement of the solidified outer portion 7' of the metal, while the inner liquid core 8' of the same gradually solidifies during the passage through the elongated chill.
  • the plate 5 and the annular member 5' may be formed from Marinite.
  • the following materials may be used as lubricating material: Vegetable oils such as peanut oil.
  • An arrangement for lubricating a strand of metal during continuous casting thereof comprising, in combination, a chill having wall means forming a passage through said chill and means for cooling the wall means forming the passage, said passage having an inlet end of a given cross section; a member of porous heat resistant material abutting against the wall means of said chill in the region of the inlet end of said passage and being formed with an opening therethrough substantially aligned with said inlet end of said passage and having a cross section smaller than the latter; means for continuously feeding molten metal through said opening in said member into said passage, whereby at the junction of said opening and said passage an annular space free of metal will be formed; channel means formed in said wall means in the region of said inlet end of said passage closely adjacent to said annular space, said channel means being open towards said porous member and closed toward said passage and being adapted to be filled with lubricating material, so that the lubricating material will pass by capillary action through said porous member into said space to be evaporated in the latter and to be
  • said plate has a pair of parallel coextensive plate sections, one of which abuts against said end wall, and a foil of material impervious to the lubricating material sandwiched between said plate sections and extencling over said channel means for preventing lubricating material to pass from 5 said one into the other of said pair of plate sections.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
US566602A 1965-07-24 1966-07-20 Method and arrangement for introducing lubricating material into a stationary chill for continuous casting of metal Expired - Lifetime US3451465A (en)

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DEV0028967 1965-07-24

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AT (1) AT264739B (enrdf_load_html_response)
BE (1) BE683753A (enrdf_load_html_response)
CH (1) CH451416A (enrdf_load_html_response)
GB (1) GB1144208A (enrdf_load_html_response)
LU (1) LU51619A1 (enrdf_load_html_response)
NL (1) NL6609859A (enrdf_load_html_response)
NO (1) NO116685B (enrdf_load_html_response)
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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3630266A (en) * 1969-11-21 1971-12-28 Technicon Corp Continuous casting process
US3726336A (en) * 1968-11-12 1973-04-10 Vaw Ver Aluminium Werke Ag Continuous casting of metallic elements
US3987840A (en) * 1973-11-28 1976-10-26 Institut De Recherches De La Siderurgie Francaise (Irsid) Method and apparatus for continuously casting of metal in horizontal direction
US4057100A (en) * 1975-06-07 1977-11-08 Vereinigte Aluminum-Werke Aktiengesellschaft Apparatus for the lubrication of hot head continuous casting molds
US4086951A (en) * 1974-06-12 1978-05-02 Nippon Steel Corporation Apparatus for changing width of a cast piece in a continuous casting operation
US4363352A (en) * 1979-10-15 1982-12-14 Olin Corporation Continuous lubrication casting molds
US4420030A (en) * 1981-04-01 1983-12-13 Olin Corporation Continuous lubrication casting molds
US4437508A (en) 1979-10-15 1984-03-20 Olin Corporation Continuous lubrication casting molds
US4501317A (en) * 1982-11-03 1985-02-26 Olin Corporation Casting system having lubricated casting nozzles
US4579165A (en) * 1983-02-14 1986-04-01 Kabushiki Kaisha Kobe Seiko Sho Mold for use in continuous metal casting
US4625788A (en) * 1983-08-24 1986-12-02 Swiss Aluminium Ltd. Apparatus and method for the continuous casting of metal
US4773469A (en) * 1986-10-23 1988-09-27 Olin Corporation Composite mold for continuous thin strip casting
US4940078A (en) * 1988-11-30 1990-07-10 Aluminum Company Of America Oil ring for casting
US20060090875A1 (en) * 2004-10-25 2006-05-04 Showa Denko K.K. Continuous casting apparatus, continuous casting method and aluminum alloy cast bar
US8365808B1 (en) 2012-05-17 2013-02-05 Almex USA, Inc. Process and apparatus for minimizing the potential for explosions in the direct chill casting of aluminum lithium alloys
US8479802B1 (en) 2012-05-17 2013-07-09 Almex USA, Inc. Apparatus for casting aluminum lithium alloys
US9616493B2 (en) 2013-02-04 2017-04-11 Almex USA, Inc. Process and apparatus for minimizing the potential for explosions in the direct chill casting of aluminum lithium alloys
US9936541B2 (en) 2013-11-23 2018-04-03 Almex USA, Inc. Alloy melting and holding furnace

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4598763A (en) * 1982-10-20 1986-07-08 Wagstaff Engineering, Inc. Direct chill metal casting apparatus and technique
GB2129344B (en) * 1982-10-20 1986-11-19 Wagstaff Engineering Inc Direct chill casting
DE3424457A1 (de) * 1984-07-03 1986-01-16 Kaiser Aluminium Europe Inc., 4000 Düsseldorf Vorrichtung zum stranggiessen von metallen
US5873405A (en) * 1997-06-05 1999-02-23 Alcan International Limited Process and apparatus for direct chill casting
US6840303B1 (en) * 1998-03-13 2005-01-11 Honda Giken Kogyo Kabushiki Kaisha Process for continuously casting light alloy and apparatus for continuously casting light alloy

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE898667C (de) * 1951-07-01 1953-12-03 Boehler & Co Ag Geb Vorrichtung zum Einbringen des Schmiermittels in Stranggiesskokillen
US2690600A (en) * 1950-10-16 1954-10-05 Tarmann Bruno Device for introducing the lubricant into the mold for the continuous casting of metals, more particularly iron and steel
US2693624A (en) * 1951-09-28 1954-11-09 Du Pont Continuous casting of metals
US2747244A (en) * 1953-07-15 1956-05-29 Norman P Goss Porous mold for the continuous casting of metals
FR1290962A (fr) * 1961-03-08 1962-04-20 Loire Atel Forges Perfectionnements à l'alimentation des lingotières en coulée continue
US3286309A (en) * 1963-06-06 1966-11-22 Aluminum Co Of America Method and apparatus for horizontal casting of ingots
US3327768A (en) * 1965-01-25 1967-06-27 Aluminum Co Of America Horizontal continuous casting apparatus
US3329200A (en) * 1965-01-05 1967-07-04 Aluminum Co Of America Horizontal continuous casting apparatus
US3381741A (en) * 1963-06-07 1968-05-07 Aluminum Co Of America Method and apparatus for continuous casting of ingots

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2690600A (en) * 1950-10-16 1954-10-05 Tarmann Bruno Device for introducing the lubricant into the mold for the continuous casting of metals, more particularly iron and steel
DE898667C (de) * 1951-07-01 1953-12-03 Boehler & Co Ag Geb Vorrichtung zum Einbringen des Schmiermittels in Stranggiesskokillen
US2693624A (en) * 1951-09-28 1954-11-09 Du Pont Continuous casting of metals
US2747244A (en) * 1953-07-15 1956-05-29 Norman P Goss Porous mold for the continuous casting of metals
FR1290962A (fr) * 1961-03-08 1962-04-20 Loire Atel Forges Perfectionnements à l'alimentation des lingotières en coulée continue
US3286309A (en) * 1963-06-06 1966-11-22 Aluminum Co Of America Method and apparatus for horizontal casting of ingots
US3381741A (en) * 1963-06-07 1968-05-07 Aluminum Co Of America Method and apparatus for continuous casting of ingots
US3329200A (en) * 1965-01-05 1967-07-04 Aluminum Co Of America Horizontal continuous casting apparatus
US3327768A (en) * 1965-01-25 1967-06-27 Aluminum Co Of America Horizontal continuous casting apparatus

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3726336A (en) * 1968-11-12 1973-04-10 Vaw Ver Aluminium Werke Ag Continuous casting of metallic elements
US3630266A (en) * 1969-11-21 1971-12-28 Technicon Corp Continuous casting process
US3987840A (en) * 1973-11-28 1976-10-26 Institut De Recherches De La Siderurgie Francaise (Irsid) Method and apparatus for continuously casting of metal in horizontal direction
US4086951A (en) * 1974-06-12 1978-05-02 Nippon Steel Corporation Apparatus for changing width of a cast piece in a continuous casting operation
US4057100A (en) * 1975-06-07 1977-11-08 Vereinigte Aluminum-Werke Aktiengesellschaft Apparatus for the lubrication of hot head continuous casting molds
US4363352A (en) * 1979-10-15 1982-12-14 Olin Corporation Continuous lubrication casting molds
US4437508A (en) 1979-10-15 1984-03-20 Olin Corporation Continuous lubrication casting molds
US4420030A (en) * 1981-04-01 1983-12-13 Olin Corporation Continuous lubrication casting molds
US4501317A (en) * 1982-11-03 1985-02-26 Olin Corporation Casting system having lubricated casting nozzles
US4579165A (en) * 1983-02-14 1986-04-01 Kabushiki Kaisha Kobe Seiko Sho Mold for use in continuous metal casting
US4625788A (en) * 1983-08-24 1986-12-02 Swiss Aluminium Ltd. Apparatus and method for the continuous casting of metal
US4773469A (en) * 1986-10-23 1988-09-27 Olin Corporation Composite mold for continuous thin strip casting
US4940078A (en) * 1988-11-30 1990-07-10 Aluminum Company Of America Oil ring for casting
US20060090875A1 (en) * 2004-10-25 2006-05-04 Showa Denko K.K. Continuous casting apparatus, continuous casting method and aluminum alloy cast bar
US7637306B2 (en) * 2004-10-25 2009-12-29 Show A Denko K.K. Continuous casting apparatus, continuous casting method and aluminum alloy cast bar
US9849507B2 (en) 2012-05-17 2017-12-26 Almex USA, Inc. Process and apparatus for minimizing the potential for explosions in the direct chill casting of aluminum lithium alloys
US8479802B1 (en) 2012-05-17 2013-07-09 Almex USA, Inc. Apparatus for casting aluminum lithium alloys
US8365808B1 (en) 2012-05-17 2013-02-05 Almex USA, Inc. Process and apparatus for minimizing the potential for explosions in the direct chill casting of aluminum lithium alloys
US9895744B2 (en) 2012-05-17 2018-02-20 Almex USA, Inc. Process and apparatus for direct chill casting
US10646919B2 (en) 2012-05-17 2020-05-12 Almex USA, Inc. Process and apparatus for direct chill casting
US10946440B2 (en) 2012-05-17 2021-03-16 Almex USA, Inc. Process and apparatus for minimizing the potential for explosions in the direct chill casting aluminum alloys
US9616493B2 (en) 2013-02-04 2017-04-11 Almex USA, Inc. Process and apparatus for minimizing the potential for explosions in the direct chill casting of aluminum lithium alloys
US9764380B2 (en) 2013-02-04 2017-09-19 Almex USA, Inc. Process and apparatus for direct chill casting
US9950360B2 (en) 2013-02-04 2018-04-24 Almex USA, Inc. Process and apparatus for minimizing the potential for explosions in the direct chill casting of lithium alloys
US10864576B2 (en) 2013-02-04 2020-12-15 Almex USA, Inc. Process and apparatus for minimizing the potential for explosions in the direct chill casting of lithium alloys
US9936541B2 (en) 2013-11-23 2018-04-03 Almex USA, Inc. Alloy melting and holding furnace
US10932333B2 (en) 2013-11-23 2021-02-23 Almex USA, Inc. Alloy melting and holding furnace

Also Published As

Publication number Publication date
NL6609859A (enrdf_load_html_response) 1967-01-25
SE318371B (enrdf_load_html_response) 1969-12-08
CH451416A (de) 1968-05-15
NO116685B (enrdf_load_html_response) 1969-05-05
BE683753A (enrdf_load_html_response) 1966-12-16
GB1144208A (en) 1969-03-05
LU51619A1 (enrdf_load_html_response) 1966-09-22
AT264739B (de) 1968-09-10

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