EP1375032A1 - Kupfer-Giessform für das Strangiessen von Metallschmelzen - Google Patents

Kupfer-Giessform für das Strangiessen von Metallschmelzen Download PDF

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Publication number
EP1375032A1
EP1375032A1 EP03013616A EP03013616A EP1375032A1 EP 1375032 A1 EP1375032 A1 EP 1375032A1 EP 03013616 A EP03013616 A EP 03013616A EP 03013616 A EP03013616 A EP 03013616A EP 1375032 A1 EP1375032 A1 EP 1375032A1
Authority
EP
European Patent Office
Prior art keywords
diffusion barrier
barrier layer
layer
copper
mold
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.)
Withdrawn
Application number
EP03013616A
Other languages
German (de)
English (en)
French (fr)
Inventor
Hans-Jürgen Hemschemeier
Ralf Rethmann
Jürgen Dr. Merker
Dirk Dr. Rode
Gerhard HUGENSCHÜTT
Hark Schulze
Frank Maiwald
Hans-Günter Dr. Wobker
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
KM Europa Metal 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 KM Europa Metal AG filed Critical KM Europa Metal AG
Publication of EP1375032A1 publication Critical patent/EP1375032A1/de
Withdrawn legal-status Critical Current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
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/059—Mould materials or platings
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/8833—Floating installations
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/907—Measuring or control devices, e.g. control units, detection means or sensors
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/92—Digging elements, e.g. suction heads
    • E02F3/9293—Component parts of suction heads, e.g. edges, strainers for preventing the entry of stones or the like
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/2016—Winches
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/26—Indicating devices
    • E02F9/261—Surveying the work-site to be treated

Definitions

  • the invention relates to a copper mold for the continuous casting of molten steel in the presence of zinc and / or sulfur.
  • Zinc as a component e.g. of molten automobile scrap reacts with the hot copper surface and forms in one Diffusion process of brittle ⁇ / ⁇ / ⁇ brass phases. These flake off and run in succession to cracking.
  • Sulfur which is present, for example, through casting aids, reacts with copper to large-volume and brittle copper sulfides. These can also flake off. The notch effect resulting from local corrosion is therefore an ideal one Starting point for crack formation.
  • the invention is based on the object a copper mold for the continuous casting of molten steel in the presence of zinc and / or sulfur, which have a significantly longer service life has without the heat flow and thus the cooling capacity of the copper mold be influenced in a relevant manner.
  • the copper mold is in the most thermally stressed Provide contact area with the molten steel with a diffusion barrier layer.
  • Such at least one-layer diffusion barrier layer can according to claim 2 e.g. consist of metals or metalloids, their solubility with zinc and / or sulfur is negligible in the operating temperature range.
  • materials include in particular ruthenium (Ru), rhenium (Re), tantalum (Ta), silicon (Si), boron (B), tungsten (W), chromium (Cr) and niobium (Nb). If only zinc Molybdenum (Mo), Titan (Ti), Rhodium (Rh) and Tellurium can also be present (Te) are used.
  • the diffusion barrier layer can with the help of a CVD (Chemical Vapor Deposition) or PVD (Physical Vapor Deposition) process directly on a copper surface be applied to a copper mold.
  • CVD Chemical Vapor Deposition
  • PVD Physical Vapor Deposition
  • the diffusion barrier layer on chrome or on other galvanic layers can be applied.
  • a diffusion barrier layer can be used as an intermediate layer before application a wear layer, e.g. made of chrome and / or nickel.
  • the choice of layer type is determined by two factors. On the one hand, it has to primary objective of a diffusion barrier to be met. On the other hand, the imperative Requirement of good adhesion as an intermediate or top layer.
  • chromium oxide As a top layer. Their solubility with zinc and / or with sulfur is in the range of Operating temperatures of a copper mold are negligible.
  • the chromium oxide can by a thermal / chemical treatment of a chrome coating, e.g. in a oxidizing atmosphere. This has the advantage that not just the surface itself through an oxide against the diffusion of zinc and / or sulfur in the chrome is protected, but that also the typically existing micro and macro cracks in the chrome coating be closed by the oxide.
  • a chrome layer of at least one type of chrome is deposited as a diffusion barrier layer.
  • So-called crack-free, micro-cracked and standardized Hard chrome layers can be combined. The combination is carried out in such a way that no cracks are continuous from the layer surface to the base material or become universal in use.
  • Layer structure which consists of an intermediate layer of crack-free or micro-cracked Chrome is made and a top layer of standard hard chrome is applied.
  • the invention also allows a layer of carbides, nitrides, borides or oxides and their mixed types, for example based on titanium / aluminum (Ti / Al) and chromium (Cr), to be formed as a diffusion barrier layer.
  • carbides, nitrides and borides are preferably suitable as intermediate layers.
  • Oxides can be used as cover layers.
  • the invention sees favorable behavior in particular when using aluminum nitride (AIN), aluminum oxide (Al 2 O 3 ), chromium carbide (CrC), chromium nitride (CrN), titanium carbide (TiC), titanium nitride (TiN), titanium carbon nitride (TiCN), titanium aluminum nitride (TiAIN) and titanium boride (TiB 2 ).
  • AIN aluminum nitride
  • Al 2 O 3 aluminum oxide
  • CrC chromium carbide
  • CrN chromium nitride
  • TiC titanium carbide
  • TiN titanium carbon nitride
  • TiCN titanium aluminum nitride
  • TiAIN titanium aluminum nitride
  • TiB 2 titanium boride
  • a diffusion barrier layer can also be formed by applying an aluminum compound, for example aluminum nitrate, to the surface of a copper casting mold, for example a chrome-plated surface. When applied, the surface layer of the casting mold is completely wetted and infiltrated by the salt solution. Annealing at a moderate temperature leads to decomposition to y-aluminum oxide (Al 2 O 3 ) on the entire surface as well as in the micro cracks and open pores. This also prevents the diffusion of zinc and sulfur and thus the formation of brass or sulfur corrosion.
  • the aluminum nitrate solution can be applied by dipping, spraying or applying with a brush or roller. The protective effect of the infiltration can be increased by repeated dipping or application.
  • Suitable paints, resins or plastics on the surface of a copper mold, e.g. a chrome-plated surface, created a diffusion barrier become.
  • Suitable materials are in particular paints, resins or plastics Base of silicone or epoxy.
  • the diffusion barrier layer is formed from a ceramic material.
  • the Diffusion barrier layer according to claim 5 preferably in the upper half and expediently applied here in the upper quarter or third of the mold length.
  • the diffusion barrier layer in a pipe or Plate mold provided in the height area of the bathroom mirror.
  • the Diffusion barrier layer applied at a height sufficient to that at oscillation of the bath level, the contact surface is highly stressed overall to cover properly. This range is typically about ⁇ 50 mm or below the bath level or approximately in a range up to approximately 250 mm from the upper edge of the tube or plate mold.
  • the area is advantageous between 50 mm and 250 mm, preferably 150 mm to 200 mm from the upper edge away.
  • a moving mold (casting roll, casting roll) is according to claim 7 with a diffusion barrier layer, which covers the whole with the Melting steel is in contact with the circumference.
  • the diffusion barrier layer according to claim 8 should have a thickness of 0.002 mm to 0.3 mm.
  • a preferred thickness of the diffusion barrier layer is according to claim 9 0.005 mm to 0.1 mm is seen.
  • a multilayer layer can also be formed. With a multilayer layer several layers and layer materials are combined.
  • 1 is a mold plate made of copper.
  • the hatched Area 2 illustrates the most thermally stressed Contact area with a molten steel. It has a diffusion barrier layer 3 Mistake.
  • the bathroom mirror 4 is indicated in dash-dotted lines.
  • the Bathroom mirror 4 can oscillate vertically, so that to cover area 2 Diffusion barrier layer 3 extends about 50 mm above or below the bath level 4. With In other words, the bathroom mirror 4 can also be approximately 150 mm to 200 mm from the top edge 5 of the plate mold 1.
  • the diffusion barrier layer 3 consists of a metallic material.
  • a tubular mold 6 is indicated in the diagram in FIG.
  • Diffusion barrier layer 7 made of a metallic / metalloid. Material illustrates which lies in an area 8 which is approximately 150 mm to 200 mm from the Top 9 of the tubular mold 6 is removed. The height range to the bathroom mirror 10 is about 50 mm.
  • FIG. 3 shows in longitudinal section the base material copper 11 of a casting mold 12, such as a plate or tubular mold 1, 6 or a co-rotating mold, not illustrated in more detail, such as a casting roll or casting roll.
  • a single-layer diffusion barrier layer 13 made of, for example, aluminum oxide (Al 2 O 3 ) is applied to this base material 11.
  • 11 again designates the base material copper of a casting mold 12.
  • a multilayer layer 14 is applied to the base material 11, which in the exemplary embodiment consists of a layer 15 of chromium nitride (CrN) brought into contact with the base material 11, a layer 16 of aluminum oxide (Al 2 O 3 ) and a layer 17 as a cover layer made of titanium nitride (TiN ) composed.
  • CrN chromium nitride
  • Al 2 O 3 aluminum oxide
  • TiN titanium nitride
  • the base material copper of a casting mold 12 is also 11 designated.
  • a single-layer diffusion barrier layer 18 is on the base material 11 made of, for example, aluminum nitride (AIN). It is also a single layer Wear layer 19, for example made of chrome and / or nickel, in Transition area from the base material 11 copper to the diffusion barrier layer 18 provided.
  • FIG. 6 again shows the base material 11 copper of a casting mold 12.
  • a protective layer 20 made of chromium is applied thereon, which in turn has a diffusion barrier layer 21, for example made of aluminum oxide (Al 2 O 3 ), which runs into the surface of the protective layer 20. is provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Continuous Casting (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Coating With Molten Metal (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Mold Materials And Core Materials (AREA)
EP03013616A 2002-06-17 2003-06-16 Kupfer-Giessform für das Strangiessen von Metallschmelzen Withdrawn EP1375032A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10227034 2002-06-17
DE10227034A DE10227034A1 (de) 2002-06-17 2002-06-17 Kupfer-Gießform

Publications (1)

Publication Number Publication Date
EP1375032A1 true EP1375032A1 (de) 2004-01-02

Family

ID=29594593

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03013616A Withdrawn EP1375032A1 (de) 2002-06-17 2003-06-16 Kupfer-Giessform für das Strangiessen von Metallschmelzen

Country Status (11)

Country Link
US (1) US7096922B2 (enrdf_load_stackoverflow)
EP (1) EP1375032A1 (enrdf_load_stackoverflow)
JP (1) JP2004017162A (enrdf_load_stackoverflow)
KR (1) KR20040002598A (enrdf_load_stackoverflow)
CN (1) CN1493415A (enrdf_load_stackoverflow)
AU (1) AU2003204752A1 (enrdf_load_stackoverflow)
BR (1) BR0302145A (enrdf_load_stackoverflow)
DE (1) DE10227034A1 (enrdf_load_stackoverflow)
MX (1) MXPA03005439A (enrdf_load_stackoverflow)
RU (1) RU2003117753A (enrdf_load_stackoverflow)
TW (1) TWI270422B (enrdf_load_stackoverflow)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19802809A1 (de) 1998-01-27 1999-07-29 Km Europa Metal Ag Flüssigkeitsgekühlte Kokille
JP4764199B2 (ja) * 2005-09-07 2011-08-31 新日本製鐵株式会社 磁性体の粒形状観察装置
WO2008049081A1 (en) * 2006-10-18 2008-04-24 Inframat Corporation Casting molds coated for surface enhancement and methods of making them
DE102008015096A1 (de) * 2008-03-19 2009-09-24 Kme Germany Ag & Co. Kg Verfahren zur Herstellung von Gießformteilen sowie nach dem Verfahren hergestellte Gießformteile
US8887532B2 (en) * 2010-08-24 2014-11-18 Corning Incorporated Glass-forming tools and methods
NO338410B1 (no) * 2013-01-22 2016-08-15 Norsk Hydro As En elektrode for aluminiumsfremstilling og en fremgangsmåte for tildannelse av samme
KR101469173B1 (ko) * 2013-02-26 2014-12-04 조선대학교산학협력단 선택적 초합금 적층층을 가진 고내마모성 열간성형 금형
DE102013114326A1 (de) * 2013-12-18 2015-06-18 Thyssenkrupp Steel Europe Ag Gießkokille zum Vergießen von Stahlschmelze
CN110125350B (zh) * 2019-06-04 2024-08-13 中国重型机械研究院股份公司 用于板坯连铸机结晶器宽面的多层复合铜板及其制备方法
CN114799063B (zh) * 2022-04-28 2024-03-22 河北科技大学 碳氮化钛和碳化铬协同增强铁基复合材料叶轮的制备方法

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US4197902A (en) * 1976-07-31 1980-04-15 Kabel-Und Metallwerke Gutehoffnungshuette Ag Molds for continuous casting of metals
JPS59189037A (ja) * 1983-04-08 1984-10-26 Nippon Kokan Kk <Nkk> 連続鋳造用鋳型
US5172749A (en) * 1990-12-24 1992-12-22 Sms Schloemann Siemag Aktiengesellschaft Continuous steel casting mold
JP2000087207A (ja) * 1998-09-10 2000-03-28 Tocalo Co Ltd 溶融金属用容器およびその表面処理方法
JP2000218346A (ja) * 1999-02-01 2000-08-08 Satosen Co Ltd 鋼の連続鋳造用鋳型およびその製造方法
US6206987B1 (en) * 1997-12-17 2001-03-27 Km Europa Metal Ag Method for manufacturing a casting-die body and a casting-die body
US6354358B1 (en) * 1999-11-26 2002-03-12 Nomura Plating Co., Ltd. Continuous casting mold with tungsten alloy plating and method of producing the same

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JPS5545514A (en) * 1978-09-22 1980-03-31 Nippon Steel Corp Mold for continuous casting of iron and steel
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4037646A (en) * 1975-06-13 1977-07-26 Sumitomo Metal Industries, Ltd. Molds for continuously casting steel
US4197902A (en) * 1976-07-31 1980-04-15 Kabel-Und Metallwerke Gutehoffnungshuette Ag Molds for continuous casting of metals
JPS59189037A (ja) * 1983-04-08 1984-10-26 Nippon Kokan Kk <Nkk> 連続鋳造用鋳型
US5172749A (en) * 1990-12-24 1992-12-22 Sms Schloemann Siemag Aktiengesellschaft Continuous steel casting mold
US6206987B1 (en) * 1997-12-17 2001-03-27 Km Europa Metal Ag Method for manufacturing a casting-die body and a casting-die body
JP2000087207A (ja) * 1998-09-10 2000-03-28 Tocalo Co Ltd 溶融金属用容器およびその表面処理方法
JP2000218346A (ja) * 1999-02-01 2000-08-08 Satosen Co Ltd 鋼の連続鋳造用鋳型およびその製造方法
US6354358B1 (en) * 1999-11-26 2002-03-12 Nomura Plating Co., Ltd. Continuous casting mold with tungsten alloy plating and method of producing the same

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PATENT ABSTRACTS OF JAPAN vol. 009, no. 055 (M - 362) 9 March 1985 (1985-03-09) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 06 22 September 2000 (2000-09-22) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 11 3 January 2001 (2001-01-03) *

Also Published As

Publication number Publication date
BR0302145A (pt) 2004-09-08
TW200400092A (en) 2004-01-01
CN1493415A (zh) 2004-05-05
TWI270422B (en) 2007-01-11
DE10227034A1 (de) 2003-12-24
AU2003204752A1 (en) 2004-01-15
RU2003117753A (ru) 2005-01-10
KR20040002598A (ko) 2004-01-07
JP2004017162A (ja) 2004-01-22
MXPA03005439A (es) 2005-02-14
US20030230394A1 (en) 2003-12-18
US7096922B2 (en) 2006-08-29

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