EP1150789A1 - Procede et dispositif pour produire des coquilles refroidisseuses pour installations a couler les gueuses - Google Patents

Procede et dispositif pour produire des coquilles refroidisseuses pour installations a couler les gueuses

Info

Publication number
EP1150789A1
EP1150789A1 EP00900063A EP00900063A EP1150789A1 EP 1150789 A1 EP1150789 A1 EP 1150789A1 EP 00900063 A EP00900063 A EP 00900063A EP 00900063 A EP00900063 A EP 00900063A EP 1150789 A1 EP1150789 A1 EP 1150789A1
Authority
EP
European Patent Office
Prior art keywords
die
copper
molds
mold
forming
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP00900063A
Other languages
German (de)
English (en)
Other versions
EP1150789B1 (fr
Inventor
Volker Hille
Gereon Fehlemann
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.)
SMS Siemag AG
Original Assignee
SMS Schloemann Siemag AG
Schloemann Siemag AG
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.)
Filing date
Publication date
Application filed by SMS Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP1150789A1 publication Critical patent/EP1150789A1/fr
Application granted granted Critical
Publication of EP1150789B1 publication Critical patent/EP1150789B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D3/00—Pig or like casting
    • B22D3/02—Moulding of beds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/06—Permanent moulds for shaped castings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/06—Permanent moulds for shaped castings
    • B22C9/061—Materials which make up the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D15/00—Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor
    • B22D15/04—Machines or apparatus for chill casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D3/00—Pig or like casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D5/00—Machines or plants for pig or like casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D7/00—Casting ingots, e.g. from ferrous metals
    • B22D7/06—Ingot moulds or their manufacture
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon

Definitions

  • the invention relates to a method for producing molds for ingot casting plants, copper or a copper alloy being used as the starting material.
  • the invention also relates to an apparatus for performing the method.
  • ingots It is state of the art to cast molten pig iron or other metals or metal alloys in the form of bars / plates, which are called ingots, on special ingot casting machines. Such ingots typically weigh 6 kg. E.g. four ingots are poured into a mold, the liquid pig iron solidifies in the mold and both the ingot and the mold are cooled by spray water.
  • the ingot casting molds or molds of known ingot casting machines are usually made of cast iron. They are subject to comparatively high wear and tear and must therefore be replaced again and again in accordance with wear.
  • cast iron ingot molds have a comparatively low thermal conductivity of approximately 40 to 50 W / mK.
  • the spray water is usually applied from above and from below.
  • DE 42 33 522 A1 describes a method for producing a wide mold side wall for a thin slab caster, which does not correspond to the type mentioned at the beginning.
  • a method is claimed there for producing a broad side wall for a thin slab caster, which has an extension area starting from the top edge and tapering to the sides and downwards.
  • the broad side wall which is essentially made of copper and is 5 to 50 mm thick, is provided with an extension area by means of tensile forming / tensile pressure forming. It is noteworthy here that the bending angle of the mold wall achieved during the forming is only about 25 ° relative to its base plane. The material is subjected to a comparatively very low elongation.
  • DE 42 33 739 A1 discloses a non-generic device for the precise, rational manufacture of a wide side wall for the continuous mold of a thin slab caster with an extension area starting from the top edge, tapering to the sides and downwards.
  • a die plate is provided, which has a shaped surface for receiving a wide mold side wall, the working side of which is assigned a pressure surface formed from a plurality of individually adjustable partial surfaces.
  • a flat circuit board made of copper of considerable thickness for example 55 to 80 mm
  • crack-free molds can be formed in the originally flat board.
  • a strain-hardened circuit board made of a copper alloy is soft-annealed before it is used for the first forming step. With a Brinell hardness of approx. 50 HB, the copper plate achieves an elongation at break of at least 35% and it is possible to achieve comparatively large changes in shape without crack formation.
  • a further development of the method provides that one or more integrally connected, preferably four, molds are molded into a copper plate used as the starting material.
  • the forming process of the copper plate is carried out between a massive die and a likewise massive die under high pressure and with a uniformly slow penetration rate.
  • the slow deformation of the material is advantageous because it gives the structure the opportunity to relieve stress by flowing the material and to prevent the generation of heat.
  • an embodiment of the method according to the invention provides that the raised shaped elements of the die and the concavely formed recesses of the die cooperating therewith form congruent shaped contours. As a result, an approximately constant thickness of the material area to be deformed is achieved.
  • Essential to the invention is also the measure that all the shape contours with radii merge into one another both in the form of the die and in the die. Edges and sharp corners must be completely avoided in order to give the material the opportunity to relieve tension caused by cold-flowing material. Sharp edges would prevent this and therefore initiate crack formation. Furthermore, it is provided that the blank is clamped all around at its edge regions during the forming process.
  • the copper plate is deformed by means of a detonation force, for example triggered by explosives, onto a concavely shaped die, the thickness of the copper plate corresponding to the wall thickness of the mold.
  • a preferred alternative development of the invention is that the copper plate is deformed by means of hydroforming, triggered by high water pressure, onto a concavely shaped die, the thickness of the copper plate corresponding to the wall thickness of the mold.
  • a device for the production of molds for ingot casting plants for the production of ingots comprises a pressing tool consisting of a press ram and a die for the cold forming of a copper plate.
  • the die has concavely shaped depressions which form the molds in cross section.
  • the mold or press die which can be interacted with the die has oppositely shaped, raised shaped elements.
  • the pressing tool has shaping means for the simultaneous configuration during a pressing process of at least one, preferably four, mold troughs. It is expedient that the die and the pressure stamp have two guide elements which are jointly assigned to them and can slide into one another.
  • An alternative device for the production of molds for ingot casting plants for the production of ingots is characterized in that a hydraulic pressure chamber with a high-pressure water connection is arranged between a die formed at least with a concave die form and a reaction stamp tensioned against the die, and the board made of copper or made of a copper alloy with sealing edges, that is clamped between the reaction stamp and the die via a pressure-resistant seal.
  • Figure 1a in plan view a board with molded molds
  • Figure 1 b the circuit board of Figure 1a in side view, cut;
  • Figure 3 shows the principle of hydroforming a copper plate into molds.
  • the circuit board 2 made of copper or of a copper alloy shown in plan view in FIG. 1 a has four adjacent, similar mold shapes 1 in the manner of trough-shaped depressions.
  • the depressions of the mold shapes have a width / depth ratio> 1, for example, at an upper width B and a depth T.
  • the pressing tool 9 shown in FIG. 2 has a solid die 4 with recesses 6 which are also concave and egg-cup-shaped in cross section and form the mold 1, whereas the die or press die 3 which can be interacted with the die 4 is of the bene shaped elements 5. Between these, the blank 2 to be deformed is pressed into the mold shape with a thickness between 50 and 85 mm. Copper or a copper alloy, for example CuAg, CuCrZr or CuNiBe, is provided as the board material.
  • the pressing tool 9 has molding means, namely forming die 3, shaped element 5, recess 6 and shaped contours 7 for the simultaneous configuration in a pressing process of at least one, preferably four, mold troughs.
  • FIG. 2 shows that the pressing tool 9 has guide elements 10, 11 which are assigned to the pressure stamp 3 and the die 4 together. Furthermore, hold-down devices 12 are provided on the edge regions 8 of the blank 2 in a manner known per se, for example in the case of conventional deep-drawing processes, which prevent inadmissible deformation of these edge regions 8 and hold the blank in position and in tension during the deformation. Pure copper, copper alloys or solidified copper alloys can be used as the circuit board.
  • FIG. 3 shows an alternative device for the production of molds for ingot casting plants for the production of ingots with which the copper piatine is hydroformed.
  • This device points between a at least with a concave mold 1 formed die 4 and a reaction stamp 14 stretched against the die 4 on a hydraulic pressure chamber 15.
  • This hydraulic pressure chamber 15 is connected to a connection for high water pressure.
  • the board 2 to be deformed made of copper or of a copper alloy, is clamped on the edge and on all sides between the reaction stamp 14 and the die 4, as is also indicated in FIG. 2.
  • the raised edge of the reaction stamp 13 lies on the edge areas 8 of the copper plate in a seal-tight manner, so that the water pressure in the hydraulic pressure chamber can act on the copper plate without pressure drop and can mold it into the mold 1 in the die 4.
  • all the shape contours 7 are provided with radii which continuously merge into one another.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Forging (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

L'invention concerne un procédé et un dispositif permettant de produire des coquilles refroidisseuses (1) pour des installations à couler les gueuses, servant à produire des gueuses. On utilise comme matériau de départ des largets (2) en cuivre, notamment en alliage de cuivre convenant au formage à froid dont le coefficient d'expansion est comparativement élevé et auxquels on donne la forme de lingotière dans le cadre d'un processus de formage, par déformation par traction/déformation par traction et compression. L'invention concerne en outre un dispositif approprié pour produire des coquilles refroidisseuses pour installations à couler les gueuses.
EP00900063A 1999-01-12 2000-01-05 Procede et dispositif pour produire des coquilles refroidisseuses pour installations a couler les gueuses Expired - Lifetime EP1150789B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19900780 1999-01-12
DE19900780A DE19900780A1 (de) 1999-01-12 1999-01-12 Verfahren und Vorrichtung zum Herstellen von Kokillenformen für Masselgießanlagen
PCT/EP2000/000027 WO2000041827A1 (fr) 1999-01-12 2000-01-05 Procede et dispositif pour produire des coquilles refroidisseuses pour installations a couler les gueuses

Publications (2)

Publication Number Publication Date
EP1150789A1 true EP1150789A1 (fr) 2001-11-07
EP1150789B1 EP1150789B1 (fr) 2002-07-03

Family

ID=7893989

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00900063A Expired - Lifetime EP1150789B1 (fr) 1999-01-12 2000-01-05 Procede et dispositif pour produire des coquilles refroidisseuses pour installations a couler les gueuses

Country Status (4)

Country Link
EP (1) EP1150789B1 (fr)
AU (1) AU1865600A (fr)
DE (2) DE19900780A1 (fr)
WO (1) WO2000041827A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111673044B (zh) * 2020-06-15 2022-09-06 共享装备股份有限公司 一种隔砂冷铁放置方式

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE927503C (de) * 1940-08-20 1955-05-09 Forschungsanstalt Fuer Segelfl Verstellbare Tiefziehvorrichtung zur Herstellung von Membranen oder anderen profilierten Blechen
GB804575A (en) * 1956-02-23 1958-11-19 Carbodies Ltd Method of, and apparatus for, pressing a sheet of metal to non-planar form
DE2023599B2 (de) * 1970-05-14 1972-04-13 Siemens Electrogeräte GmbH, 1000 Berlin u. 8000 München Vorrichtung zum hydromechanischen ziehen
ZA754574B (en) * 1974-07-29 1976-06-30 Concast Inc A method of forming the walls of continuous casting and chill
US5410132A (en) * 1991-10-15 1995-04-25 The Boeing Company Superplastic forming using induction heating
DE4233522A1 (de) * 1992-04-04 1993-10-07 Schloemann Siemag Ag Verfahren zur Herstellung einer Kokillenbreitseitenwand für eine Dünnbrammengießanlage
DE4233739A1 (de) * 1992-10-07 1994-04-14 Schloemann Siemag Ag Vorrichtung zur Herstellung einer Kokillenbreitseitenwand für eine Dünnbrammengießanlage
DE19717953A1 (de) * 1997-04-28 1998-10-29 Bayerische Motoren Werke Ag Verfahren zum hydromechanischen Stülpziehen von Metallblechen
DE59906310D1 (de) * 1998-08-10 2003-08-21 Sms Demag Ag Masselgiessmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0041827A1 *

Also Published As

Publication number Publication date
DE50000264D1 (de) 2002-08-08
AU1865600A (en) 2000-08-01
WO2000041827A1 (fr) 2000-07-20
DE19900780A1 (de) 2000-07-13
EP1150789B1 (fr) 2002-07-03

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