EP0566865A1 - Système d'alimentation et de distribution pour gaz et fluide de lubrification pour un dispositif de coulée continue - Google Patents

Système d'alimentation et de distribution pour gaz et fluide de lubrification pour un dispositif de coulée continue Download PDF

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Publication number
EP0566865A1
EP0566865A1 EP93104224A EP93104224A EP0566865A1 EP 0566865 A1 EP0566865 A1 EP 0566865A1 EP 93104224 A EP93104224 A EP 93104224A EP 93104224 A EP93104224 A EP 93104224A EP 0566865 A1 EP0566865 A1 EP 0566865A1
Authority
EP
European Patent Office
Prior art keywords
intermediate element
mold
feed channels
opening edge
channels
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
EP93104224A
Other languages
German (de)
English (en)
Other versions
EP0566865B1 (fr
Inventor
Wolfgang Dr. Schneider
Manfred Langen
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.)
MAERZ-GAUTSCHI INDUSTRIEOFENANLAGEN GmbH
Hydro Aluminium Deutschland GmbH
Original Assignee
Vereinigte Aluminium Werke AG
Vaw Aluminium 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 Vereinigte Aluminium Werke AG, Vaw Aluminium AG filed Critical Vereinigte Aluminium Werke AG
Publication of EP0566865A1 publication Critical patent/EP0566865A1/fr
Application granted granted Critical
Publication of EP0566865B1 publication Critical patent/EP0566865B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • B22D11/0401—Moulds provided with a feed head

Definitions

  • the invention relates to a device for the continuous casting of metal with the supply of a release agent or a release agent mixture to the surface of the cast strand with feed channels for at least one release agent or a release agent mixture, the outlet openings of which in an intermediate region between a hot head, through the open cross section of which metal melt is fed, and a mold , in the open cross section of which the molten metal solidifies, where an intermediate element with a central open cross section is provided between the hot head and the mold, the surfaces of which, together with the adjacent surfaces of the hot head and / or the mold, at least the end sections leading directly to the outlet openings of the feed channels.
  • Separating oils in particular when adding gases - namely air or inert gas - have been found to be a suitable separating agent, each of which is supplied under pressure, a gas-oil mixture being formed due to the pressure and temperature conditions prevailing in the mold.
  • the system of bores and ring channels provided in the mold is complicated.
  • the corresponding ring body which has radial bores on the back and possibly circumferential grooves, is expensive, complicated and not reliable in operation, since clogging of its porous structure due to thickened separating oil cannot be ruled out.
  • EP 0 218 855 B1 discloses a device of the type mentioned in the introduction, in which ring channels are provided by ring grooves in an intermediate element and / or in a surface of the mold, which are provided with bores in the hot head or in the mold with separating oil or gaseous Separation medium are supplied, and from which annular gaps lead to the transition area between the hot head and the mold, which open behind the recess in the casting direction and which are formed by annular surfaces of the hot head of the intermediate element and the mold.
  • the device specified herewith requires a very high production outlay, since fit surfaces have to be manufactured very precisely on all three parts in order to exactly maintain the exit width of the annular gaps.
  • the surface parts that directly form the gaps must be manufactured very precisely, with slight inaccuracies, e.g. when the hot head, the intermediate element and the mold are centered, cause uneven gap widths with respect to one another, so that completely unusable results are produced on the cast strand due to uneven release agent supply.
  • the present invention has for its object to improve a device of the type mentioned in such a way that increased accuracy in the generation of the channel cross sections of the feed channels can be achieved with simple, inexpensive means.
  • the solution to this is that the intermediate element is a sheet metal part and that at least up to the opening edge end sections of the feed channels are worked into the surface of the intermediate element and / or the upper side of the mold at a constant depth.
  • a photochemical etching method and, alternatively, a laser cutting method are proposed.
  • channels of constant depth and thus precisely to be observed Channel cross-section can be produced with simple means with greater accuracy.
  • the etching or laser cutting of the channels will refer to the surfaces of the intermediate element.
  • the subject matter of the invention also includes the etching and laser cutting of corresponding channels in the top of the mold, which is also made of metal. Due to the relatively resilient design of the intermediate element as a thin-walled sheet metal part, inaccuracies in the respective counter surfaces of the hot head and the mold can be compensated for without the channel depths being significantly changed.
  • the channel width will usually be constant, so that the flow resistance is optimized with a constant channel cross section. However, it is also possible for the end sections to be tapered in the manner of a nozzle, so that an increased exit speed is achieved.
  • the preferred material suitable for the etching and laser cutting of the feed channels is stainless steel or copper alloys for the intermediate element.
  • the preferred thickness of the intermediate element is between 0.1 and 5 mm, in particular between 0.5 and 2 mm. This is good workability.
  • the feed channels for the separation media are expanded in a nozzle shape towards the opening edge.
  • the expansion angle can be between 13 and 17 °, preferably it is 15 °. It is particularly advantageous if the channels are designed so that the dividers do not run to the opening edge, but end at a distance of 0.5 to 2 mm before the opening edge. This causes the supplied media to meet in front of the opening edge, thereby making the release of the separation medium more uniform.
  • the intermediate element is formed in one piece and in a ring or rectangular shape.
  • the intermediate element is also possible to use multi-part intermediate elements which each consist of individual strips delimiting the free opening cross-section.
  • the opening edge of the intermediate element can be flush with the wall of the mold and exposed to the cross-sectional opening of the mold.
  • the end sections of the feed channels for the release agent open essentially radially to the casting direction of the strand.
  • the opening edge of the intermediate element can be covered by an overhang of the hot head and the end sections of the feed channels open into grooves in the opening edge of the intermediate element. If the cross-sectional opening of the mold is somewhat less than the opening edge, essentially a rectified inflow of the separating agent is possible with respect to the direction of manufacture of the cast strand.
  • the feed channels i.e. the opening end sections consist of individual depressions which run essentially perpendicular to the opening edge of the intermediate element and which are preferably at a uniform distance from one another for uniform distribution of the separating means.
  • parallel connecting sections are provided at a distance from the opening edge, also in the form of recessed channels or in the form of complete slots in the intermediate element, which are connected to connecting channels in the mold or in the hot head for supplying release agent.
  • outlet opening for the gaseous separation medium is located in the direction of the casting strand before or above the outlet openings for the separation oil.
  • Seals can be provided between the individual feed channels and / or between the connecting channels running at a distance from the opening edge, which seals are embedded in particular in grooves in the surface of the hot head and / or the mold.
  • a trough 1 which has a common open liquid level with a hot head 12, below which a water-cooled mold 2 can be seen.
  • the liquid melt solidifies in the area of the mold, a miniscus being formed downwards and solidifying to form the ingot 3, which sits on a sprue 4 below, which is pulled downwards by a table 5.
  • Draining oil is designated 13.
  • a gaseous separation medium and a separation oil are supplied in the intermediate area between the hot head 12 and the mold 2.
  • Corresponding feed devices are shown for this. 6 shows an interface to a gas supply system, in particular the compressed air system of an operating system.
  • a reducing valve 7 In the further line there is a reducing valve 7, a volume flow device 8 and a pressure measuring device 9.
  • a reservoir 14, a pump 11 and a flow measuring instrument 10 are shown for the separating oil. It can be seen that the mold has a recess in the casting direction with respect to the hot head.
  • a hot head 21, a mold 22 and an intermediate sheet-metal intermediate element 23 can be seen in FIG.
  • the corresponding surface 27 of the mold, the opening edge, recedes in relation to the surface 26 of the hot head that lies with the free opening cross section 28 of the intermediate element 23 is flush with the surface 27 of the mold.
  • a clamping element 24 lies outside the hot head.
  • the mold 22 has a cooling water chamber 25 in the usual way. Internal bores 29 are connected to the cooling water chamber 25 and lead into the vicinity of the surface 27 of the mold.
  • individual feed channels 30 lying perpendicular to the opening edge 28 are etched at the same distance from one another and / or laser-cut, which are connected to one another on the back by at least one connecting channel 31, which is designed as a slot.
  • the slot-shaped connecting channel 31 lies above a supply channel 32 designed as an open groove in the mold, which can be connected via at least one bore 33 to a first gas or release agent supply source.
  • seals 34, 35 inserted in grooves are provided running in parallel.
  • second feed channels 36 are etched into the surface or laser cut, which are connected to one another by means of a connecting channel 37 designed as an open groove in the mold. It is also possible to partially or exclusively form a transverse connecting channel in the surface of the intermediate element.
  • a feed channel to the connecting channel 37 lies in a different sectional plane and is not shown here. This feed channel connects the channel 37 to the supply channel 38 and is connected at least with a bore to a gas or release agent reservoir.
  • FIG. 1 An example of an intermediate element 23 is shown in plan view in FIG.
  • the central cross-sectional opening 40 not previously designated, can be seen, which in this case has an essentially rectangular cross-section.
  • Perpendicular to the opening edge 28, circumferentially distributed and etched and laser-cut feed channels 30 end at substantially the same intervals and are connected to one another via individual rear slot-shaped connecting channels 31.
  • Each of the connecting channels 31 requires a separate feed hole in the mold or in the hot head.
  • An intermediate element 23 ' is shown in FIG. 5, which is round overall and thus forms a central cross-sectional opening 40'. Perpendicular to the opening edge 28 ', circumferentially distributed, etched or laser-cut feed channels 30' end at substantially the same intervals. These are via individual slot-shaped part-circular connecting channels 31 'connected to each other. Each of the connecting channels 31 'requires a separate feed hole in the mold or in the hot head. In terms of function, the details shown here correspond to those in FIG. 3.
  • FIG. 6 details of an intermediate element 23 ′′ with a straight opening edge 28 ′′ can again be seen, towards which feed channels 30 ′′ and 36 ′′ run, of which the former communicate with one another via a connecting channel 31 ′′.
  • the feed channels 30 ′′ and 36 ′′ are tapered in a nozzle shape towards the opening edge 28 ′′, so that the media supplied emerge at an increased speed or pressure.
  • FIG. 7 shows the preferred variant of an intermediate element 23 '' 'with a straight opening edge 28' '' into which the feed channels 30 '' 'and 36' '' open.
  • the widening angle y of the nozzle-shaped feed channels 30 '' ' is 15 ° in the example, but can in principle also be 13 or 17 °.
  • the feed channels 30 ′′ ′′ are designed such that the separating webs 15 arranged between them do not run up to the opening edge 28 ′′ ′′ but end at a distance b before the opening edge.
  • the distance b can be between 0.5 and 2 mm, as a result of which an equalization is achieved before the supplied media exit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Adornments (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Telephone Function (AREA)
EP93104224A 1992-04-15 1993-03-16 Système d'alimentation et de distribution pour gaz et fluide de lubrification pour un dispositif de coulée continue Expired - Lifetime EP0566865B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4212531 1992-04-15
DE4212531A DE4212531C1 (de) 1992-04-15 1992-04-15 Gas- und Trennmittelzuführungs- und Verteilungssystem für eine Vorrichtung zum Stranggießen

Publications (2)

Publication Number Publication Date
EP0566865A1 true EP0566865A1 (fr) 1993-10-27
EP0566865B1 EP0566865B1 (fr) 1996-11-13

Family

ID=6456830

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93104224A Expired - Lifetime EP0566865B1 (fr) 1992-04-15 1993-03-16 Système d'alimentation et de distribution pour gaz et fluide de lubrification pour un dispositif de coulée continue

Country Status (9)

Country Link
US (1) US5320159A (fr)
EP (1) EP0566865B1 (fr)
JP (1) JPH0734975B2 (fr)
AT (1) ATE145162T1 (fr)
AU (1) AU658496B2 (fr)
CA (1) CA2094002C (fr)
DE (2) DE4212531C1 (fr)
ES (1) ES2096789T3 (fr)
NO (1) NO179933C (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10115999A1 (de) * 2001-03-30 2002-10-10 Vaw Ver Aluminium Werke Ag Heißkopfkokille
WO2005042185A1 (fr) * 2003-10-17 2005-05-12 Loi Thermprocess Gmbh Procede et dispositif de coulee continue de metal

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5647427A (en) * 1995-08-15 1997-07-15 Wagstaff, Inc. Non-ferrous metal casting mold table system
FR2747063B1 (fr) * 1996-04-05 1998-05-22 Ugine Savoie Sa Lingotiere de coulee continue en charge verticale des metaux
JP3555641B2 (ja) * 1996-10-25 2004-08-18 日立プリンティングソリューションズ株式会社 離型剤供給部材、離型剤供給装置およびそれを用いた定着装置
US7204295B2 (en) 2001-03-30 2007-04-17 Maerz-Gautschi Industrieofenanlagen Gmbh Mold with a function ring
WO2007062476A1 (fr) * 2005-11-30 2007-06-07 Cast Centre Pty Ltd Appareil de fourniture de gaz et de lubrifiant
JP5206791B2 (ja) * 2008-06-30 2013-06-12 日本軽金属株式会社 鋳造用鋳型
US20100198532A1 (en) * 2008-12-30 2010-08-05 Weston Gerwin Apparatus and method for measurement of tube internal diameter
JP5060517B2 (ja) * 2009-06-24 2012-10-31 東京エレクトロン株式会社 インプリントシステム
JP5727388B2 (ja) * 2009-12-21 2015-06-03 昭和電工株式会社 鍛造加工方法および鍛造加工装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2129344A (en) * 1982-10-20 1984-05-16 Wagstaff Engineering Inc Direct chill casting
EP0167056A2 (fr) * 1984-07-03 1986-01-08 Kaiser Aluminium Europe Inc. Dispositif pour la coulée continue de métaux
EP0218855A1 (fr) * 1985-09-20 1987-04-22 Vereinigte Aluminium-Werke Aktiengesellschaft Procédé et appareil de coulée continue
CH672755A5 (en) * 1987-06-10 1989-12-29 Jean Lathion Chill mould with separation housing - for the injection of oil or compressed air

Family Cites Families (14)

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US3286309A (en) * 1963-06-06 1966-11-22 Aluminum Co Of America Method and apparatus for horizontal casting of ingots
NO115409B (fr) * 1963-06-07 1968-09-30 Aluminum Co Of America
US3446267A (en) * 1966-09-07 1969-05-27 Concast Inc Continuous casting mold
DE2609075C3 (de) * 1976-03-05 1979-01-18 Acieries Reunies De Burbach- Eich-Dudelange S.A. Arbed, Luxemburg Vorrichtung zum Zuführen und gleichmäßigen Verteilen von Schmiermitteln auf die Innenwand einer Stranggießkokille
SU569376A1 (ru) * 1976-03-09 1977-08-25 Предприятие П/Я Г-4986 Устройство дл смазки кристаллизатора машины непрерывного лить заготовок
CA1082875A (fr) * 1976-07-29 1980-08-05 Ryota Mitamura Methode et appareil de coulee de premiere fusion en coquille
JPS6039457B2 (ja) * 1980-08-22 1985-09-06 昭和軽金属株式会社 冷却鋳型
JPS5938863B2 (ja) * 1980-09-08 1984-09-19 三菱軽金属工業株式会社 垂直連続鋳造方法
JPH0680498B2 (ja) * 1982-08-27 1994-10-12 株式会社日立製作所 共有メモリのアクセス制御方式
CH665576A5 (en) * 1985-06-10 1988-05-31 Jean Lathion Two=piece sidewalls for casting moulds - with a grooved spacer plate providing compressed air and oil systems
CA1275781C (fr) * 1986-05-27 1990-11-06 Guy Leblanc Systeme modulaire de moules pour la coulee continue de lingots de metal
JPH01138043A (ja) * 1987-11-26 1989-05-30 Showa Denko Kk 金属の連続鋳造装置
NO894914L (no) * 1988-12-08 1990-06-11 Alcan Int Ltd Smoering av former ved kontinuerlig stoeping.
CA2038233A1 (fr) * 1990-03-26 1991-09-27 Alusuisse Technology & Management Ltd. Methode programmee d'alimentation d'un metal en fusion dans les moules d'une machine a coulee continue

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2129344A (en) * 1982-10-20 1984-05-16 Wagstaff Engineering Inc Direct chill casting
EP0167056A2 (fr) * 1984-07-03 1986-01-08 Kaiser Aluminium Europe Inc. Dispositif pour la coulée continue de métaux
EP0218855A1 (fr) * 1985-09-20 1987-04-22 Vereinigte Aluminium-Werke Aktiengesellschaft Procédé et appareil de coulée continue
CH672755A5 (en) * 1987-06-10 1989-12-29 Jean Lathion Chill mould with separation housing - for the injection of oil or compressed air

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10115999A1 (de) * 2001-03-30 2002-10-10 Vaw Ver Aluminium Werke Ag Heißkopfkokille
EP1245310A3 (fr) * 2001-03-30 2003-05-02 VAW Aluminium AG Lingotière de coulée continue à tête chaude
DE10115999C2 (de) * 2001-03-30 2003-08-14 Vaw Ver Aluminium Werke Ag Kokille mit Funktionsring
RU2220021C2 (ru) * 2001-03-30 2003-12-27 Фав Алюминиум АГ Кристаллизатор
AU783071B2 (en) * 2001-03-30 2005-09-22 Maerz-Gautschi Industrieofenanlagen Gmbh Mold with a function ring
WO2005042185A1 (fr) * 2003-10-17 2005-05-12 Loi Thermprocess Gmbh Procede et dispositif de coulee continue de metal

Also Published As

Publication number Publication date
AU658496B2 (en) 1995-04-13
EP0566865B1 (fr) 1996-11-13
ES2096789T3 (es) 1997-03-16
ATE145162T1 (de) 1996-11-15
DE59304452D1 (de) 1996-12-19
JPH0734975B2 (ja) 1995-04-19
NO931318D0 (no) 1993-04-06
NO179933C (no) 1997-01-15
CA2094002C (fr) 1998-04-28
JPH0647504A (ja) 1994-02-22
US5320159A (en) 1994-06-14
DE4212531C1 (de) 1993-10-21
NO931318L (no) 1993-10-18
CA2094002A1 (fr) 1993-10-16
AU3683593A (en) 1993-10-21
NO179933B (no) 1996-10-07

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