EP0137315A2 - Procédé et installation pour la fabrication d'alliages de haute pureté - Google Patents

Procédé et installation pour la fabrication d'alliages de haute pureté Download PDF

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Publication number
EP0137315A2
EP0137315A2 EP84110654A EP84110654A EP0137315A2 EP 0137315 A2 EP0137315 A2 EP 0137315A2 EP 84110654 A EP84110654 A EP 84110654A EP 84110654 A EP84110654 A EP 84110654A EP 0137315 A2 EP0137315 A2 EP 0137315A2
Authority
EP
European Patent Office
Prior art keywords
crucible
melt
plant according
melting
vacuum
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
EP84110654A
Other languages
German (de)
English (en)
Other versions
EP0137315B1 (fr
EP0137315A3 (en
Inventor
Jürgen Dr.-Ing. Hartwig
Johannes Jachowski
Paul Dipl.-Ing. Pant
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.)
Fried Krupp AG
Original Assignee
Fried Krupp 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6210057&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0137315(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fried Krupp AG filed Critical Fried Krupp AG
Priority to AT84110654T priority Critical patent/ATE34775T1/de
Publication of EP0137315A2 publication Critical patent/EP0137315A2/fr
Publication of EP0137315A3 publication Critical patent/EP0137315A3/de
Application granted granted Critical
Publication of EP0137315B1 publication Critical patent/EP0137315B1/fr
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
    • B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/15—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using vacuum

Definitions

  • the starting material forming the alloy is melted in an induction crucible, subjected to a vacuum treatment and then poured into a resistance-heated casting funnel, from which it is poured to form a certain metallostatic height and z. B. passes through a spray system into a spray chamber.
  • ceramic particles from the lining of the induction crucible and slag particles - the latter also when the pouring funnel flows empty - can get into the atomization chamber - especially in the initial phase of the pouring, in which no metallostatic height has yet been established in the pouring funnel.
  • the liquid material reacts with the lining of the pouring funnel to form further impurities which also end up in the end product.
  • the invention is based on the object of specifying a method for producing high-purity alloys, the use of which improves the degree of purity of the alloy and can be maintained throughout the entire casting phase. Furthermore, an installation for carrying out the method is to be created.
  • the degree of purity can be influenced even more favorably by the measure according to claim 2.
  • the system comprises an induction melting crucible 1, which is housed in a vacuum vessel 2.
  • a resistance-heated melting furnace 3 which has an outflow nozzle 4 in its bottom.
  • the melting furnace 3 is assigned a closing arrangement 5, which has a stopper rod 6, which is inserted from above through a vacuum guide 7 into the vacuum vessel 2 and can be operated by a control device 8.
  • the plug rod 6 is provided with a casing and / or coating 9.
  • the part of the sealing rod 6 located above the casing, the vacuum guide 7 and / or the control device 8 can be connected to a cooling system (not shown) in order to keep harmful thermal influences as low as possible.
  • nozzles 10 which point into the interior of the melting furnace 3 and which are connected to an inert gas line (not shown) on the outside.
  • the stopper rod 6 has at its lower end laterally directed nozzles 11 into the cavity of the melting furnace 3 and a nozzle 12 directed towards the outflow nozzle 4.
  • the nozzles 11 and 12 are connected to an inert gas supply (not shown).
  • the starting material is first introduced into the induction crucible 1.
  • the alloy is used to adjust the required casting temperature and for refining treatment, i. H. Transferred to the resistance-heated melting furnace 3 to remove all non-metallic impurities due to density-related buoyancy and to set the casting temperature.
  • the density-related buoyancy of the non-metallic impurities can be supported by the inert gas that passes through the nozzles 10 and / or 11 into the melt.
  • the melt is kept at a constant casting temperature for the duration of the refining treatment.
  • the stopper rod 6 is raised by actuating the control device 8 and the outflow nozzle 4 is thereby opened.
  • the inert gas jet emerging through the nozzle 12 can be used to support the atomization of the alloy stream flowing into the atomization chamber 13.
  • the resistance-heated melting furnace 3 can be used for casting the alloy in the form, block and continuous casting process.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Furnace Details (AREA)
EP84110654A 1983-09-26 1984-09-07 Procédé et installation pour la fabrication d'alliages de haute pureté Expired EP0137315B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84110654T ATE34775T1 (de) 1983-09-26 1984-09-07 Verfahren und anlage zum herstellen von hochreinen legierungen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3334733 1983-09-26
DE3334733A DE3334733C2 (de) 1983-09-26 1983-09-26 Verfahren und Anlage zum Herstellen von hochreinen Legierungen

Publications (3)

Publication Number Publication Date
EP0137315A2 true EP0137315A2 (fr) 1985-04-17
EP0137315A3 EP0137315A3 (en) 1985-08-21
EP0137315B1 EP0137315B1 (fr) 1988-06-01

Family

ID=6210057

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84110654A Expired EP0137315B1 (fr) 1983-09-26 1984-09-07 Procédé et installation pour la fabrication d'alliages de haute pureté

Country Status (5)

Country Link
US (1) US4584015A (fr)
EP (1) EP0137315B1 (fr)
JP (1) JPS6096738A (fr)
AT (1) ATE34775T1 (fr)
DE (1) DE3334733C2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4664703A (en) * 1986-06-09 1987-05-12 Inland Steel Company Method for suppressing fuming in molten steel
US4948423A (en) * 1989-07-21 1990-08-14 Energy Conversion Devices, Inc. Alloy preparation of hydrogen storage materials
EP0725151B1 (fr) * 1994-05-25 2001-08-29 Hitachi Metals, Ltd. Appareil et procede d'affinage de metal fondu
US5851262A (en) * 1994-11-25 1998-12-22 Hitachi Metals, Ltd. Method of refining molten metal
US6340376B1 (en) * 1998-02-17 2002-01-22 Energy Conversion Devices, Inc. Method for combining metals with different melting points
US8061444B2 (en) * 2008-05-22 2011-11-22 Schlumberger Technology Corporation Methods and apparatus to form a well
CN106621429B (zh) * 2015-07-20 2019-04-19 中国科学院上海应用物理研究所 密闭式蒸馏熔盐的方法及蒸馏装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2854228A (en) * 1954-10-14 1958-09-30 Nat Res Corp Vacuum furnace useful in the production of metals
NL215899A (fr) * 1956-03-31
US3230074A (en) * 1962-07-16 1966-01-18 Chrysler Corp Process of making iron-aluminum alloys and components thereof
US3185565A (en) * 1962-11-16 1965-05-25 Pennsalt Chemicals Corp Method and apparatus for safe operation of vacuum chambers
DE1214359B (de) * 1963-04-05 1966-04-14 Balzers Vakuum G M B H Anlage zum Schmelzen und Giessen unter Vakuum
DE1291760B (de) * 1963-11-08 1969-04-03 Suedwestfalen Ag Stahlwerke Verfahren und Vorrichtung zum diskontinuierlichen und kontinuierlichen Vakuum-Schmelzen und -Giessen von Staehlen und stahlaehnlichen Legierungen (Superiegierungen)
DE1228291B (de) * 1963-11-20 1966-11-10 Standard Messo Duisburg Verfahren und Vorrichtung zum nachtraeglichen Entgasen geschmolzener Staehle
US3467167A (en) * 1966-09-19 1969-09-16 Kaiser Ind Corp Process for continuously casting oxidizable metals
GB1260051A (en) * 1968-04-03 1972-01-12 Air Reduction Improvements in or relating to the manufacture of metal products
US3536125A (en) * 1968-09-17 1970-10-27 Pennwalt Corp Multiple tundish system for metal refining plant
US3764297A (en) * 1971-08-18 1973-10-09 Airco Inc Method and apparatus for purifying metal
US3798025A (en) * 1971-12-29 1974-03-19 Allegheny Ludlum Ind Inc Vacuum decarburization in rh and dh type degassing systems
DE2501603B2 (de) * 1975-01-16 1977-08-25 Institut problem htja Akademn Nauk Ukrainskoj SSR, Kiew (Sowjetunion) Einrichtung zur vakuumbehandlung fluessiger metalle

Also Published As

Publication number Publication date
ATE34775T1 (de) 1988-06-15
DE3334733C2 (de) 1985-08-14
US4584015A (en) 1986-04-22
JPS6096738A (ja) 1985-05-30
EP0137315B1 (fr) 1988-06-01
DE3334733A1 (de) 1985-04-25
EP0137315A3 (en) 1985-08-21

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