EP0071047B1 - Verfahren zur Herstellung von Gusskörpern mit eingegossenen Rohren aus Stahl - Google Patents

Verfahren zur Herstellung von Gusskörpern mit eingegossenen Rohren aus Stahl Download PDF

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Publication number
EP0071047B1
EP0071047B1 EP82106016A EP82106016A EP0071047B1 EP 0071047 B1 EP0071047 B1 EP 0071047B1 EP 82106016 A EP82106016 A EP 82106016A EP 82106016 A EP82106016 A EP 82106016A EP 0071047 B1 EP0071047 B1 EP 0071047B1
Authority
EP
European Patent Office
Prior art keywords
steel
tube
cast
process according
shells
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.)
Expired
Application number
EP82106016A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0071047A3 (en
EP0071047A2 (de
Inventor
Heinz-Ludwig Ing. grad. Bücking
Christoph Ing. Grad. Knoche
Wilhelm Sieweke
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.)
Hoesch AG
Original Assignee
Hoesch 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 Hoesch AG filed Critical Hoesch AG
Priority to AT82106016T priority Critical patent/ATE13497T1/de
Publication of EP0071047A2 publication Critical patent/EP0071047A2/de
Publication of EP0071047A3 publication Critical patent/EP0071047A3/de
Application granted granted Critical
Publication of EP0071047B1 publication Critical patent/EP0071047B1/de
Expired 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
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/0072—Casting in, on, or around objects which form part of the product for making objects with integrated channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D9/00—Cooling of furnaces or of charges therein

Definitions

  • the invention relates to a process for the production of castings with cast steel pipes, preferably cooling elements for a metallurgical furnace, the castings being made of cast steel and the steel pipes being cast with an overheated cast steel melt and being filled with a granular, highly heat-conductive, refractory material before the casting.
  • DE-A-2 903 104 already discloses a cooling element for a metallurgical furnace, in particular a blast furnace, with cooling element-guiding pipes made of steel cast into a cast body and a refractory lining which is anchored in the furnace-side end face of the cooling element in recesses running parallel to the broad side of the cooling element is, bekar nt, wherein the cast body is made of cast steel and the superheating heat of the liquid cast steel body is arranged at a distance from the cooling pipes to be cast.
  • the cooling tubes are filled with high-melting, granular material with high thermal conductivity before the encapsulation.
  • Zirconium oxide, chromium oxide or a mixture with a proportion of more than 20% of these oxides is used as the granular material. If cooling elements are produced according to this known method, some of the cast-in pipes which are intended to carry the cooling liquid, as practice has shown, have leaks.
  • the invention has for its object to provide a method of the type mentioned, in which the disadvantages of the known methods are avoided and by means of which, in particular, the cooling tubes made of steel are embedded in the cast body.
  • the granular material used individually or in a mixture of magnesite (sintered magnesite), corundum, sintered alumina, chromite, SiC, Si 3 N «is used as the pipe filler and the steel pipes to be poured in are full on the pipe surface overlying pipe segments or pipe shells made of steel, the steel pipe segments or steel pipe shells cover one third to one half of the steel pipe surface, the pipe segments or shells are only placed on the cast top and only a minimal air gap remains between the steel pipe surface and steel pipe segments or shells.
  • Mixtures of fired magnesite with up to 30% each of an addition of one or more other granular materials as tube filler are preferably used as the granular material.
  • the fired magnesite ⁇ 75% MgO, preferably ⁇ 90% MgO, the chromite ⁇ 30% Cr 2 0 3 , preferably ⁇ 40% Cr 2 0 3 , the corundum and the sintered alumina ⁇ 90% A1 2 0 should preferably be used as the composition of the pipe filler 3 , preferably ⁇ 95% A1 2 0 3 contain and the materials obtained in a natural or synthetic way should be typical impurities, such.
  • the granular tube filler has the most dense spherical packing possible due to its grain size composition. H. that a minimal void fraction is present, which would significantly reduce the otherwise high thermal conductivity of the materials used according to the invention.
  • the grain size of the pipe filler is between 0 and 3 mm, preferably between 0 and 1 mm.
  • composition of the cast steel melts to be used in the process can vary depending on the intended use within the limits specified below, since in addition to unalloyed ones high-alloy cast steel, e.g. B. can be used for heat-resistant and / or scale-resistant castings:
  • ventilation bores in the steel pipe segments or shells and beveled edges cause optimal casting gas discharge and facilitate the formation of a small air gap between the pipe to be poured in and the steel pipe segments or shells placed thereon.
  • FIG. 1 shows a cast body in section
  • FIG. 2 shows a section on an enlarged scale according to II-II in FIG. 1.
  • a steel tube 2 is inserted, which with a thin surface coating 3 (Fig. 2), for. B. from A1 2 0 3 , is coated.
  • the steel tube is filled with a sintered magnesite 4 with a grain size of 0-0.5 mm.
  • the table shows the chemical composition and grain size distribution of the sintered magnesite.
  • the cast body 1 surrounding the steel tube 2 has the following chemical composition:
  • the casting temperature is approx. 1520-1550 ° C.
  • the steel pipe to be poured corresponds to the material St 35.8 / 11 according to DIN 17 175.
  • Fig. 2 shows in detail the steel pipe 2 to be poured in with its approximately 50-200 ⁇ m thick coating 3, the pipe filler 4 and a steel pipe shell 5 placed thereon, which is provided with bores 6 and bevels on the edges 7.
  • the steel pipe shell 5 includes the periphery of the steel pipe 2 is about 1/3 and is located, as shown in Fig. 1 shows, at the position denoted by "a" Gußobenseite.
  • the thickness of the steel tube shell 5 corresponds approximately to that of the steel tube to be cast, namely approximately 8 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Heat Treatment Of Articles (AREA)
  • Ceramic Products (AREA)
  • Glass Compositions (AREA)
  • Braking Arrangements (AREA)
  • Continuous Casting (AREA)
  • Mold Materials And Core Materials (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Furnace Details (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
EP82106016A 1981-07-25 1982-07-06 Verfahren zur Herstellung von Gusskörpern mit eingegossenen Rohren aus Stahl Expired EP0071047B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82106016T ATE13497T1 (de) 1981-07-25 1982-07-06 Verfahren zur herstellung von gusskoerpern mit eingegossenen rohren aus stahl.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3129391 1981-07-25
DE3129391A DE3129391C1 (de) 1981-07-25 1981-07-25 Verfahren zur Herstellung von Gusskoerpern mit eingegossenen Rohren aus Stahl

Publications (3)

Publication Number Publication Date
EP0071047A2 EP0071047A2 (de) 1983-02-09
EP0071047A3 EP0071047A3 (en) 1983-06-15
EP0071047B1 true EP0071047B1 (de) 1985-05-29

Family

ID=6137727

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82106016A Expired EP0071047B1 (de) 1981-07-25 1982-07-06 Verfahren zur Herstellung von Gusskörpern mit eingegossenen Rohren aus Stahl

Country Status (13)

Country Link
US (1) US4832106A (enrdf_load_stackoverflow)
EP (1) EP0071047B1 (enrdf_load_stackoverflow)
JP (1) JPS5865565A (enrdf_load_stackoverflow)
AT (1) ATE13497T1 (enrdf_load_stackoverflow)
AU (1) AU554448B2 (enrdf_load_stackoverflow)
BR (1) BR8203636A (enrdf_load_stackoverflow)
CA (1) CA1196767A (enrdf_load_stackoverflow)
DD (1) DD207344A1 (enrdf_load_stackoverflow)
DE (2) DE3129391C1 (enrdf_load_stackoverflow)
ES (2) ES8307558A1 (enrdf_load_stackoverflow)
MX (1) MX159651A (enrdf_load_stackoverflow)
PL (1) PL139752B1 (enrdf_load_stackoverflow)
ZA (1) ZA824950B (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4102358A1 (de) * 1991-01-26 1992-07-30 Volkswagen Ag Im druckgussverfahren herzustellendes formteil, verfahren zur herstellung des formteils sowie hohlkoerper zur einlage in das formteil
DE19647069A1 (de) * 1996-11-14 1998-05-20 Heidelberger Druckmasch Ag Gußkörper

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3243377A1 (de) * 1982-11-24 1984-08-23 GMB Giesserei & Maschinenbau Bodan AG, Romanshorn Gusswerkstueck mit eingeformten kanal
FR2558084B1 (fr) * 1984-01-17 1988-04-15 Renault Piece de fonderie bi-metallique
SE453968B (sv) * 1985-02-01 1988-03-21 Kanthal Ab Gjuten metallkropp och sett att framstella densamma
US4958537A (en) * 1990-02-20 1990-09-25 Saturn Corporation Transmission casing cover with tubular conduit cast in situ
US5111872A (en) * 1990-02-20 1992-05-12 Saturn Corporation Transmission casing cover with tubular mechanically crimped conduit cast in situ
DE4327242A1 (de) * 1993-08-13 1995-02-16 Luk Fahrzeug Hydraulik Verfahren zum Herstellen von Druckgußteilen
DE4341040A1 (de) * 1993-12-02 1995-06-08 Bruehl Eisenwerk Motorblock mit eingegossener Kanalanordnung und Verfahren zu seiner Herstellung
US5635305A (en) * 1995-05-22 1997-06-03 Itt Automotive, Inc. Machinable cast-in-place tube enclosure fittings
US5740851A (en) * 1995-06-19 1998-04-21 Trinova Corporation Component with cast-in fluid passageways
DE19751472A1 (de) * 1996-12-03 1998-06-04 Volkswagen Ag Verfahren und Vorrichtung zum Herstellen eines Druckgußmetallteils
CA2242057A1 (en) 1998-06-30 1999-12-30 Structures Monocoques Inc. Modular stairway system, method for erecting stairway and kit therefor
JP3869255B2 (ja) * 2001-06-14 2007-01-17 富士通株式会社 金属成形体製造方法およびこれにより製造される金属成形体
US20050133187A1 (en) * 2003-12-17 2005-06-23 Sean Seaver Die casting method system and die cast product
US20050133102A1 (en) * 2003-12-22 2005-06-23 Blackman Donald E. Hydraulic end head with internally cast hydraulic circuits
DE102005019961A1 (de) * 2005-04-29 2006-11-02 Audi Ag Verfahren zur Herstellung eines Gussteiles im Verbundguss
NO328472B1 (no) * 2007-06-06 2010-03-01 Tool Tech As Fremgangsmate for a fremstille ulike massive emner med innkapslete rorforbindelser ved pulverstoping
ES2331225B1 (es) * 2008-04-25 2010-09-29 Eads Construcciones Aeronauticas, S.A. Sistema de conductos con doble pared.
US8327910B2 (en) * 2010-12-15 2012-12-11 GM Global Technology Operations LLC Method of supporting tubing structures during overcasting
CN103008615B (zh) * 2012-12-06 2014-07-16 嘉应学院 合金钢镶铸锆刚玉陶瓷复合材料的制造方法
US9303595B2 (en) * 2013-08-27 2016-04-05 Deere & Company Exhaust gas recirculation cooler mount
CN104308122B (zh) * 2014-10-29 2016-01-20 刘响 一种用于浇注过程中防高温钢液击穿的填料
CN108788095B (zh) * 2018-06-20 2020-04-28 四川共享铸造有限公司 镶铸油道钢管的铸造方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2719165B1 (de) * 1977-04-29 1978-07-06 Thyssen Huette Ag Kuehlelement fuer einen metallurgischen Ofen

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1558292A1 (de) * 1967-02-17 1970-03-19 Siempelkamp Gmbh & Co Verfahren zum Herstellen einer Pressenplatte aus Gusseisen mit eingegossenen Stahlrohren
DE2127448C3 (de) * 1970-06-04 1975-08-21 Ishikawajima-Harima Jukogyo K.K., Tokio Kühlelement, insbesondere Plattenkühler, für Hochöfen
JPS5132426A (ja) * 1974-09-13 1976-03-19 Kubota Ltd Reikyakuyopaipunoigurumikozo
SU595067A1 (ru) * 1976-11-03 1978-02-28 Институт Проблем Литья Ан Украинской Сср Способ изготовлени армированных отливок
DE2804544C3 (de) * 1978-02-03 1981-05-07 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen Kühlplatte für einen Hüttenwerksofen, insbesondere Hochofen
DE2903104C2 (de) * 1979-01-27 1982-10-07 Estel Hoesch Werke Ag, 4600 Dortmund Kühlelement für einen metallurgischen Ofen, insbesondere Hochofen, und Verfahren zu seiner Herstellung
JPS5849607B2 (ja) * 1979-04-09 1983-11-05 日本鋼管株式会社 非融着型二重冷却管を備えたク−リングステ−ブ
JPS55139160A (en) * 1979-04-16 1980-10-30 Nikkei Giken:Kk Internal chilling type casting method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2719165B1 (de) * 1977-04-29 1978-07-06 Thyssen Huette Ag Kuehlelement fuer einen metallurgischen Ofen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DIDIER-WERKE AG, 1966, Wiesbaden (DE) "Feuerfest ABC" Seite 16, Stichwort "Chromit" *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4102358A1 (de) * 1991-01-26 1992-07-30 Volkswagen Ag Im druckgussverfahren herzustellendes formteil, verfahren zur herstellung des formteils sowie hohlkoerper zur einlage in das formteil
DE4102358C2 (de) * 1991-01-26 2000-05-11 Volkswagen Ag Im Druckgußverfahren herzustellendes Formteil, Verfahren zur Herstellung des Formteils sowie Hohlkörper zur Einlage in das Formteil
DE19647069A1 (de) * 1996-11-14 1998-05-20 Heidelberger Druckmasch Ag Gußkörper

Also Published As

Publication number Publication date
AU8554282A (en) 1983-02-03
PL237599A1 (en) 1983-05-23
US4832106A (en) 1989-05-23
DD207344A1 (de) 1984-02-29
ES512334A0 (es) 1983-07-01
ES8402189A1 (es) 1984-01-16
ES521488A0 (es) 1984-01-16
AU554448B2 (en) 1986-08-21
EP0071047A3 (en) 1983-06-15
ES8307558A1 (es) 1983-07-01
PL139752B1 (en) 1987-02-28
MX159651A (es) 1989-07-24
DE3129391C1 (de) 1982-11-04
CA1196767A (en) 1985-11-19
JPS6245019B2 (enrdf_load_stackoverflow) 1987-09-24
DE3263883D1 (en) 1985-07-04
EP0071047A2 (de) 1983-02-09
BR8203636A (pt) 1983-06-14
ZA824950B (en) 1983-04-27
ATE13497T1 (de) 1985-06-15
JPS5865565A (ja) 1983-04-19

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