[go: up one dir, main page]

US20140137623A1 - Method for Producing a Mold Tube - Google Patents

Method for Producing a Mold Tube Download PDF

Info

Publication number
US20140137623A1
US20140137623A1 US14/129,014 US201214129014A US2014137623A1 US 20140137623 A1 US20140137623 A1 US 20140137623A1 US 201214129014 A US201214129014 A US 201214129014A US 2014137623 A1 US2014137623 A1 US 2014137623A1
Authority
US
United States
Prior art keywords
profile
cold formed
recited
mold
formed profile
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.)
Abandoned
Application number
US14/129,014
Other languages
English (en)
Inventor
Gerhard Hugenschuett
Daniel Reinelt
Dietmar Kolbeck
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.)
Cunova GmbH
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of US20140137623A1 publication Critical patent/US20140137623A1/en
Assigned to KME GERMANY GMBH & CO. KG reassignment KME GERMANY GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HUGENSCHÜTT, Gerhard, KOLBECK, DIETMAR, REINELT, DANIEL
Abandoned legal-status Critical Current

Links

Images

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
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/057—Manufacturing or calibrating 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
    • B22D11/0406—Moulds with special profile
    • 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
    • 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
    • B22D11/055—Cooling the moulds

Definitions

  • the present invention relates to a method for producing a mold tube from copper or a copper alloy for a continuous casting mold in accordance with the features set forth in the definition of the species in claim 1 .
  • Tubular chill molds made of copper or copper alloys for casting profiles made of steel or other metals having a high melting point have often been described in the related art. Mold tubes typically have a uniform wall thickness in a horizontal cross-sectional plane that increases in the direction of the strand due to the inner conicity of the mold tube. The inner conicity is adapted to the solidification behavior of the strand and the continuous casting parameters.
  • the heat flux has a predominantly two-dimensional characteristic and leads to widely differing cooling rates of the steel strand.
  • a particularly strong shell growth and shrinkage behavior of the strand is evident in the corners of the mold tube, since it is here that substantial amounts of heat are dissipated due to the unequal casting surface to cooling surface ratio.
  • the rate of cooling is lower in the lateral surfaces of a mold tube than in the corner regions due to the virtually equal casting surface to cooling surface ratio. At the same time, a greater heat flux is imposed thereon. The leads to a reduced shell growth relative to the corner regions.
  • a higher rate of heat dissipation can be achieved by providing additional cooling grooves, as is described, for example, in the European Patent Application EP 1 792 676 A1.
  • the cooling grooves are adapted in the depth and configuration thereof to the amount of heat to be removed, the corner regions of the mold tube being excluded.
  • the grooves are produced by cutting-type machining since they are formed as depressions in the surface.
  • German Patent Application DE 36 15 079 A1 describes a method for producing open-ended molds for continuous casting for continuous casting machines, where a tube is calibrated by an inner mandrel and, on the outside, is pulled through a die that imparts the outer contour to the mold. Molds having curvilinear shapes can also be manufactured in this manner.
  • an object of the present invention to provide a method for producing a mold tube that will make possible the inexpensive manufacture of mold tubes featuring optimized heat dissipation. This objective is achieved by a method having the features of claim 1 .
  • the method according to the present invention for producing a mold tube from copper or a copper alloy provides for a tube blank to be formed on a mandrel, which determines the inner shape of the mold, by externally applied force, and, following the shaping process, for the mandrel to be removed from the mold tube.
  • the tube blank is passed through a die that has a shaping structure for a cold formed profile on the outer surface of the mold tube, so that the cold formed profile is produced by the die upon shaping of the tube blank on the mandrel.
  • the method according to the present invention therefore, provides for a noncutting production of the cold formed profile that is achieved by a special shaping structure in the die.
  • the cold formed profile is able to be produced much faster and more economically than if cutting-type machining were used.
  • the amount of heat to be dissipated is in proportion to the heat-transfer surface.
  • Increasing the size of the outer surface by the cold profiling allows more heat to be released to the ambient environment, i.e., to the cooling water.
  • the cold profiling results an enlarged surface area, this increase in the surface area being determined by the structure of the die.
  • the present invention provides for the cold formed profile to be produced preferably in response to the pulling of the tube blank through the die.
  • the corner regions of the mold tube may be thereby excluded in order not to additionally increase the size of the heat-transfer surface in this region.
  • the cold formed profile may itself be configured as a grooved profile having an undulated structure or as a zigzag profile.
  • An undulated profile or also a zigzag profile may be more readily realized by the process of pulling through the die than are individual, mutually spaced apart grooves having a rectangular cross section, for example.
  • the cold formed profile in the context of the present invention, it is considered to be especially advantageous for the cold formed profile to be produced with an amplitude height range of from 0.5 to 5 mm; in the case of a zigzag profile, an opening angle being produced between two adjacent zags within a range of from 15° to 90°, and, in the case of an undulated profile, the distance between two adjacent grooves being 1 to 14 mm.
  • the amplitude height is 0.5 to 1.5 mm.
  • the opening angle is preferably within a range of from 45° to 60°.
  • the method according to the present invention is suitable for all known forms of mold tubes, whether the cross section be circular, rectangular or square.
  • T-, double-, U- or L-shaped cross-sectional profiles may be produced using the method according to the present invention.
  • the mandrel used in the method according to the present invention may have a conical shape. It may have a one-part or a multipart design.
  • the mandrel itself may also be curvilinear, thereby making it possible for the method according to the present invention to be used for producing the mold tubes for circular-arc continuous casting machines.
  • FIG. 1 a sectional representation through the wall region of a mold tube having a zigzag-shaped cold formed profile
  • FIG. 2 a sectional representation through the wall region of a mold tube having an undulated, cold formed profile
  • FIG. 3 a perspective view of the corner region of a mold tube.
  • FIG. 1 shows a detail of a mold tube 1 . Specifically, it is a question of one fourth of a mold tube which, if fully represented, would define a rectangular interior space. Therefore, mold tube 1 has a corner region 2 , as well as side walls 3 , 4 ; in the top portion of the image plane, side wall 3 being longer than side wall 4 , which is to the right in the image plane.
  • Illustrated mold tube 1 is made of copper or of a copper alloy and is produced by the pulling of a tube blank (not shown in detail) through a die.
  • the mold blank had been formed on a mandrel (likewise not shown in detail).
  • the inner contour of mold tube 1 is formed by the external force applied by the die.
  • the geometry of the die determines the outer geometry of mold tube 1 . It is the outer geometry of the mold tube that is relevant to the inventive method.
  • FIG. 1 shows that, in some regions, outer surface 5 features a cold formed profile 6 , 7 while, in other regions, it does not.
  • corner region 2 is smooth, i.e., configured without any cold formed profile. Cold formed profiles are only located in the region of side walls 3 , 4 .
  • cold formed profile 6 of upper side wall 3 in the top portion of the image plane extends directly to the beginning of corner region 2 , i.e., ends where the curvature of corner region 2 begins
  • cold formed profile 7 of shorter side wall 4 which is to the right in the image plane, is located at a somewhat greater distance from corner region 2 . This means that corner region 2 initially merges transitionally into a region 8 in which outer surface 5 of side wall 4 is unrounded and smooth. Only then does cold formed profile 7 begin.
  • Cold formed profiles 6 , 7 are identical in design. It is a question of zigzag profiles. Overall, therefore, the grooves of the zigzag profile are identical in form. They have a uniform amplitude height H, which, in this exemplary embodiment, has dimensions on the order of 0.5 to 1.5 mm and, in particular, 1 mm. Angle W, which is measured between mutually adjacent flanks of two zags, is within the range of 15 to 90°. In this exemplary embodiment, it is 60°.
  • FIG. 2 differs from that of FIG. 1 merely in the shape of cold formed profiles 6 a, 7 a.
  • Cold formed profiles 6 a, 7 a are not shaped as zigzag profiles, but rather as undulated profiles.
  • the amplitude height is within the range of 0.5 to 5 mm and, here, may also be preferably within a range of from 0.5 to 1.5 mm, in particular may be 1 mm. Overall, therefore, it is discernible that both profiles 6 a, 7 a are uniform.
  • Mutually adjacent grooves 9 between two crests 10 are all spaced apart at the same distance. The distance is 1 to 14 mm. Between the flanks, illustrated angle W1, in turn, is 60°.
  • FIG. 3 shows corner region 2 of mold tube 1 illustrated in FIG. 1 .
  • corner region 2 On outer surface 5 thereof, corner region 2 is smooth, while a cold formed profile 6 is produced on side wall 3 which is to the left in the image plane.
  • a transverse groove 11 Situated in the image plane above cold formed profile 6 as a recess milled into side wall 3 , is a transverse groove 11 .
  • Another transverse groove 12 is located in other side wall 4 .
  • Transverse grooves 11 , 12 extend into corner region 2 .
  • Mold tube 1 may be fixed in position via transverse grooves 11 , 12 .
  • No further cold formed profile is configured in the image plane above transverse grooves 11 , 12 .
  • Cold formed profile may be removed by a cutting-type machining, for example, in order to produce a smooth surface for sealing mold tube 2 in a water cooling box.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Continuous Casting (AREA)
US14/129,014 2011-06-27 2012-06-25 Method for Producing a Mold Tube Abandoned US20140137623A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102011106313.0 2011-06-27
DE102011106313A DE102011106313A1 (de) 2011-06-27 2011-06-27 Verfahren zur Herstellung eines Kokillenrohrs
PCT/EP2012/002666 WO2013000555A2 (fr) 2011-06-27 2012-06-25 Procédé de fabrication d'un tube de lingotière

Publications (1)

Publication Number Publication Date
US20140137623A1 true US20140137623A1 (en) 2014-05-22

Family

ID=46800153

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/129,014 Abandoned US20140137623A1 (en) 2011-06-27 2012-06-25 Method for Producing a Mold Tube

Country Status (8)

Country Link
US (1) US20140137623A1 (fr)
EP (1) EP2723519A2 (fr)
JP (1) JP2014518156A (fr)
CN (1) CN103298574A (fr)
CA (1) CA2840514A1 (fr)
DE (1) DE102011106313A1 (fr)
RU (1) RU2014102386A (fr)
WO (1) WO2013000555A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104096810A (zh) * 2014-06-30 2014-10-15 武汉泛洲中越合金有限公司 水平连铸结晶器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3630058A (en) * 1970-01-27 1971-12-28 Frances E Reed Process and apparatus for forming tubes with spiral corrugations
US4336702A (en) * 1980-09-12 1982-06-29 Amado Jr Juan J Method of and apparatus for making spiral tubes
GB2177331A (en) * 1985-06-24 1987-01-21 Outokumpu Oy Continuous casting mould
US6056048A (en) * 1998-03-13 2000-05-02 Kabushiki Kaisha Kobe Seiko Sho Falling film type heat exchanger tube
US6968719B2 (en) * 2000-09-21 2005-11-29 Packless Metal Hose, Inc. Apparatus and methods for forming internally and externally textured tubing

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE361507C (de) 1922-10-16 Max Mueller Drehschalter mit auswechselbaren Verbindungsstuecken
DE1809633C3 (de) * 1968-11-19 1979-10-31 Kabel- Und Metallwerke Gutehoffnungshuette Ag, 3000 Hannover Verfahren zur Herstellung einer gebogenen Durchlaufkokille für Kreisbogenstranggußmaschinen
IT1160132B (it) * 1983-12-14 1987-03-04 Tubi Italia Spa Procedimento per la preparazione di comchiglie tubolari destinate ad impianti per la colata continua di acciaio
DE3411359A1 (de) * 1984-03-28 1985-10-31 Mannesmann AG, 4000 Düsseldorf Stranggiesskokille fuer rund- bzw. knueppelquerschnitte, insbesondere fuer das vergiessen von fluessigem stahl
FI71243C (fi) * 1984-06-27 1986-12-19 Outokumpu Oy Foerfarande och anordning foer framstaellning av koppar- ellerkopparlegeringsroer bildade kokiller foer straenggjutning smskiner foer ett aemne
DE3781194D1 (de) * 1986-05-02 1992-09-24 Kabelmetal Ag Verfahren zur herstellung von durchlaufkokillen fuer stranggussmaschinen.
DE3615079A1 (de) 1986-05-03 1987-11-05 Kabel Metallwerke Ghh Verfahren zur herstellung von durchlaufkokillen fuer stranggussmaschinen
JPH09225593A (ja) * 1996-02-26 1997-09-02 Nippon Steel Corp 角ビレットの連続鋳造用鋳型
JPH09276994A (ja) * 1996-04-22 1997-10-28 Nippon Steel Corp 連続鋳造用鋳型
DE50004675D1 (de) * 1999-12-29 2004-01-15 Concast Standard Ag Verfahren und vorrichtung zum bearbeiten von hohlraumwänden von stranggiesskokillen
DE20219419U1 (de) * 2002-01-31 2003-04-03 KM Europa Metal AG, 49074 Osnabrück Kokillenrohr
JP3930761B2 (ja) * 2002-04-17 2007-06-13 株式会社神戸製鋼所 チューブ方式連続鋳造用鋳型
DE102006001812A1 (de) 2005-12-05 2007-06-06 Km Europa Metal Ag Kokille zum Stranggießen von Metall
ES2385257T3 (es) * 2007-06-04 2012-07-20 Concast Ag Coquilla para la colada continua de lingotes desbastados, lingotes para desbaste o tochos
CN101108403B (zh) * 2007-08-30 2010-06-09 佟铮 管式连铸结晶器的成形方法
CN201455212U (zh) * 2009-08-12 2010-05-12 钢铁研究总院 一种用于方坯、圆坯及矩形坯连铸的铜管

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3630058A (en) * 1970-01-27 1971-12-28 Frances E Reed Process and apparatus for forming tubes with spiral corrugations
US4336702A (en) * 1980-09-12 1982-06-29 Amado Jr Juan J Method of and apparatus for making spiral tubes
GB2177331A (en) * 1985-06-24 1987-01-21 Outokumpu Oy Continuous casting mould
US6056048A (en) * 1998-03-13 2000-05-02 Kabushiki Kaisha Kobe Seiko Sho Falling film type heat exchanger tube
US6968719B2 (en) * 2000-09-21 2005-11-29 Packless Metal Hose, Inc. Apparatus and methods for forming internally and externally textured tubing

Also Published As

Publication number Publication date
DE102011106313A1 (de) 2012-12-27
JP2014518156A (ja) 2014-07-28
WO2013000555A3 (fr) 2013-03-07
WO2013000555A2 (fr) 2013-01-03
CA2840514A1 (fr) 2013-01-03
EP2723519A2 (fr) 2014-04-30
RU2014102386A (ru) 2015-08-10
CN103298574A (zh) 2013-09-11

Similar Documents

Publication Publication Date Title
KR970005365B1 (ko) 금속 특히 강의 연속주조용 주형
CN103328130B (zh) 用于连续铸造的结晶器
US20070125512A1 (en) Permanent chill mold for the continuous casting of metals
CN100408226C (zh) 用于连续铸造铸坯的结晶器的型腔
US11534821B2 (en) Continuous casting method for steel and reduction roll for continuous casting
US20140137623A1 (en) Method for Producing a Mold Tube
ITMI991695A1 (it) Lingotteria per uso nella colata continua di metallo
US4565236A (en) Method of and mold for continuously casting steel beam blanks
JP6390718B2 (ja) 連続鋳造鋳片とその製造方法および製造装置、厚鋼板の製造方法および製造装置
RU2602215C2 (ru) Кристаллизатор для непрерывного литья
CN101412080A (zh) 新型薄板坯漏斗形结晶器及其制造方法
KR100607855B1 (ko) 빌렛 및 분괴형상으로 강을 연속주조하기 위한 주형
CN103958093B (zh) 用于对金属进行连铸的模具
CN110000348B (zh) 双曲线漏斗形结晶器宽面铜板及其制备方法
MXPA03000876A (es) Tubo de coquilla.
JP4427439B2 (ja) 中空状の鍛造用鋼材の製法および筒状鍛造品の製法
JP2016087613A (ja) 連続鋳造用鋳型
CA2255279C (fr) Geometrie d'entonnoir d'un moule pour la coulee continue d'un metal
RU2336970C2 (ru) Гильзовый кристаллизатор для непрерывного литья сортовых заготовок
RU2325969C1 (ru) Гильзовый кристаллизатор для высокоскоростного непрерывного литья металла
JP3976323B2 (ja) 連続鋳造合金棒、連続鋳造方法及び連続鋳造装置
JP3976323B6 (ja) 連続鋳造合金棒及び連続鋳造方法
JP2014000586A (ja) 鋳造用鋳型
JP2012528719A (ja) 粗形材、特にダブルｔ形の粗形材の連続鋳造用鋳型
JP2001079650A (ja) 連続鋳造用鋳型

Legal Events

Date Code Title Description
AS Assignment

Owner name: KME GERMANY GMBH & CO. KG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HUGENSCHUETT, GERHARD;REINELT, DANIEL;KOLBECK, DIETMAR;REEL/FRAME:033831/0865

Effective date: 20140424

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION