EP0137315A3 - Process and apparatus for the manufacture of high-purity alloys - Google Patents

Process and apparatus for the manufacture of high-purity alloys Download PDF

Info

Publication number
EP0137315A3
EP0137315A3 EP84110654A EP84110654A EP0137315A3 EP 0137315 A3 EP0137315 A3 EP 0137315A3 EP 84110654 A EP84110654 A EP 84110654A EP 84110654 A EP84110654 A EP 84110654A EP 0137315 A3 EP0137315 A3 EP 0137315A3
Authority
EP
European Patent Office
Prior art keywords
melt
crucible
vacuum
melt crucible
induction
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)
Other versions
EP0137315B1 (en
EP0137315A2 (en
Inventor
Jurgen 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(A3) "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/en
Publication of EP0137315A2 publication Critical patent/EP0137315A2/en
Publication of EP0137315A3 publication Critical patent/EP0137315A3/en
Application granted granted Critical
Publication of EP0137315B1 publication Critical patent/EP0137315B1/en
Expired legal-status Critical Current

Links

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

Abstract

Process and system for the production of very pure alloys. The starting materials are first melted and vacuum treated in an induction crucible inside a vacuum melt system, and then are poured into a second melt crucible, and there brought to casting temperature and held there. An opening beneath the melt in the second melt crucible is used for pouring out the melt. The system for carrying out the process comprises a vacuum melt crucible assembly containing an induction melt crucible and a second melt crucible. The second melt crucible has an orifice in its lower area which is operated by a sealing arrangement. A chamber is arranged underneath the second melt crucible.
EP84110654A 1983-09-26 1984-09-07 Process and apparatus for the manufacture of high-purity alloys Expired EP0137315B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84110654T ATE34775T1 (en) 1983-09-26 1984-09-07 PROCESS AND PLANT FOR PRODUCTION OF HIGH PURITY ALLOYS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3334733A DE3334733C2 (en) 1983-09-26 1983-09-26 Process and plant for the production of high-purity alloys
DE3334733 1983-09-26

Publications (3)

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

Family

ID=6210057

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84110654A Expired EP0137315B1 (en) 1983-09-26 1984-09-07 Process and apparatus for the manufacture of high-purity alloys

Country Status (5)

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

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
WO1995032312A1 (en) * 1994-05-25 1995-11-30 Hitachi Metals, Ltd. Method and apparatus for refining molten metal
DE69430541T2 (en) * 1994-11-25 2002-10-31 Hitachi Metals Ltd METHOD FOR REFINING 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 (en) * 2015-07-20 2019-04-19 中国科学院上海应用物理研究所 The method and distilling apparatus of closed distillation fused salt

Citations (5)

* 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
GB853411A (en) * 1956-03-31 1960-11-09 Bochumer Ver Fur Gussstahlfabr Improvements in or relating to the manufacture of steel
DE1214359B (en) * 1963-04-05 1966-04-14 Balzers Vakuum G M B H System for melting and casting under vacuum
FR2005441A1 (en) * 1968-04-03 1969-12-12 Air Reduction
DE1942696A1 (en) * 1968-09-17 1970-04-02 Pennwalt Corp Device for refining metal melts under vacuum

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE1291760B (en) * 1963-11-08 1969-04-03 Suedwestfalen Ag Stahlwerke Process and device for discontinuous and continuous vacuum melting and casting of steel and steel-like alloys (super alloys)
DE1228291B (en) * 1963-11-20 1966-11-10 Standard Messo Duisburg Method and device for the subsequent degassing of molten steels
US3467167A (en) * 1966-09-19 1969-09-16 Kaiser Ind Corp Process for continuously casting oxidizable metals
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 (en) * 1975-01-16 1977-08-25 Institut problem htja Akademn Nauk Ukrainskoj SSR, Kiew (Sowjetunion) DEVICE FOR VACUUM TREATMENT OF LIQUID METALS

Patent Citations (5)

* 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
GB853411A (en) * 1956-03-31 1960-11-09 Bochumer Ver Fur Gussstahlfabr Improvements in or relating to the manufacture of steel
DE1214359B (en) * 1963-04-05 1966-04-14 Balzers Vakuum G M B H System for melting and casting under vacuum
FR2005441A1 (en) * 1968-04-03 1969-12-12 Air Reduction
DE1942696A1 (en) * 1968-09-17 1970-04-02 Pennwalt Corp Device for refining metal melts under vacuum

Also Published As

Publication number Publication date
EP0137315B1 (en) 1988-06-01
US4584015A (en) 1986-04-22
EP0137315A2 (en) 1985-04-17
DE3334733A1 (en) 1985-04-25
ATE34775T1 (en) 1988-06-15
DE3334733C2 (en) 1985-08-14
JPS6096738A (en) 1985-05-30

Similar Documents

Publication Publication Date Title
HUT43169A (en) Method and apparatus for producing heat-resistant materials by induction way
MY101038A (en) Method and apparatus for melting and refining glass material
GB1041137A (en) Process and apparatus for vacuum-melting and teeming of steels and steel-like alloys
DE3069547D1 (en) Process for controlling the oxygen content of silicon ingots pulled by the czochralski method
MY103107A (en) Method and apparatus for melting and refining glass material or the like
EP0137315A3 (en) Process and apparatus for the manufacture of high-purity alloys
DE3660338D1 (en) Process and apparatus for purifying lithium
GB1503137A (en) Process for producing glass products
SE8404158D0 (en) SET AND DEVICE FOR WORKING AND CASTING METALS AND ALLOYS IN A CLOSED SPACE
ES447553A1 (en) Method and apparatus for the production of quality steels
DE3164365D1 (en) Process and furnace for the production of molten glass
Hartwig et al. Method and Apparatus for the Production of High-Purity Alloys
EP0280765A3 (en) Method of and installation for producing castings from pressure treated melts from steel alloys
JPS6427740A (en) Method for continuously casting graphite spheroidized product
JPH0395393A (en) Induction vacuum furnace
JPS6483635A (en) Production of composite alloy
GB1305914A (en) Process for the production of steel and an apparatus for carrying out the process
JPS52144382A (en) Production of single crystal by float-zone melting process
GB1261832A (en) A method for obtaining metal hollow ingots by electroslag remelting and a device for effecting the same
White Salyut 6' Cosmonauts Break More Space Records
GB1219707A (en) An installation for making ingots
FR2235885A1 (en) High purity glass production - using high frequency heating, either inductive or dielectric
JPS5775252A (en) Production of sound steel ingot
JPS6465043A (en) Production of quartz glass
FR1454981A (en) Refining tower for copper and its alloys

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE FR GB IT SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

RHK1 Main classification (correction)

Ipc: C21C 5/52

RTI1 Title (correction)
RTI1 Title (correction)
AK Designated contracting states

Designated state(s): AT BE FR GB IT SE

17P Request for examination filed

Effective date: 19850807

17Q First examination report despatched

Effective date: 19860429

D17Q First examination report despatched (deleted)
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE FR GB IT SE

REF Corresponds to:

Ref document number: 34775

Country of ref document: AT

Date of ref document: 19880615

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: LEYBOLD AKTIENGESELLSCHAFT

Effective date: 19890225

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19890807

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19890808

Year of fee payment: 6

R26 Opposition filed (corrected)

Opponent name: LEYBOLD AKTIENGESELLSCHAFT

Effective date: 19890225

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19890831

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19890913

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19890928

Year of fee payment: 6

ITTA It: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19900908

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19900930

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

BERE Be: lapsed

Owner name: FRIED. KRUPP G.M.B.H.

Effective date: 19900930

27W Patent revoked

Effective date: 19901113

GBPR Gb: patent revoked under art. 102 of the ep convention designating the uk as contracting state
EUG Se: european patent has lapsed

Ref document number: 84110654.5

Effective date: 19910527