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EP1988181B1 - Procédé au traitement de métal en fusion - Google Patents

Procédé au traitement de métal en fusion Download PDF

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Publication number
EP1988181B1
EP1988181B1 EP20080001357 EP08001357A EP1988181B1 EP 1988181 B1 EP1988181 B1 EP 1988181B1 EP 20080001357 EP20080001357 EP 20080001357 EP 08001357 A EP08001357 A EP 08001357A EP 1988181 B1 EP1988181 B1 EP 1988181B1
Authority
EP
European Patent Office
Prior art keywords
plasma
molten metal
temperature
pressure
hood
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.)
Not-in-force
Application number
EP20080001357
Other languages
German (de)
English (en)
Other versions
EP1988181A1 (fr
Inventor
Klaus W. Dr. Gerstenberg
Ernst Dr. Wandke
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.)
Linde GmbH
Original Assignee
Linde GmbH
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 Linde GmbH filed Critical Linde GmbH
Priority to EP20080001357 priority Critical patent/EP1988181B1/fr
Publication of EP1988181A1 publication Critical patent/EP1988181A1/fr
Application granted granted Critical
Publication of EP1988181B1 publication Critical patent/EP1988181B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/006General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with use of an inert protective material including the use of an inert gas
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/16Remelting metals
    • C22B9/22Remelting metals with heating by wave energy or particle radiation
    • C22B9/226Remelting metals with heating by wave energy or particle radiation by electric discharge, e.g. plasma
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
    • F27B3/08Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces heated electrically, with or without any other source of heat
    • F27B3/085Arc furnaces
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D7/00Forming, maintaining or circulating atmospheres in heating chambers
    • F27D7/06Forming or maintaining special atmospheres or vacuum within heating chambers
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/05Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ

Definitions

  • two or more plasma devices are provided.
  • the goal here is to achieve a uniform application of the entire surface.
  • the plasma device is mounted in the region of the cover.
  • FIG. 1 is an installed over the solder bath 1 hood 2, which is designed to be vertically displaceable and lockable.
  • Reference numeral 3 indicates the direction of displaceability.
  • the representation indicated by the reference numeral 7 in dashed lines shows the hood 2 in its lowered position 7, which can also be referred to as working position 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • General Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Physics & Mathematics (AREA)
  • Molten Solder (AREA)
  • Electric Connection Of Electric Components To Printed Circuits (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Claims (5)

  1. Procédé de traitement de bains (1) de métal fondu, caractérisé en ce que
    un plasma à basse température et pression atmosphérique dont la pression s'écarte d'au plus 200 mbars de la pression ambiante et dont la température est inférieure à 300°C est appliqué sur la surface (8) du bain (1) de métal fondu.
  2. Procédé selon la revendication 1, caractérisé en ce que le plasma à pression atmosphérique et basse température présente une pression comprise dans la plage comprise entre 800 mbars et 1 200 mbars.
  3. Procédé selon l'une des revendications 1 ou 2, caractérisé en ce que le plasma à pression atmosphérique et basse température présente une température comprise dans la plage qui s'étend entre la température ambiante et 250°C.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce qu'un plasma à pression atmosphérique, basse température et action réductrice est appliqué sur la surface (8) du bain (1) de métal fondu.
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce qu'il utilise comme bain de métal fondu un bain de brasure fondue.
EP20080001357 2007-04-03 2008-01-24 Procédé au traitement de métal en fusion Not-in-force EP1988181B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20080001357 EP1988181B1 (fr) 2007-04-03 2008-01-24 Procédé au traitement de métal en fusion

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE200710016102 DE102007016102A1 (de) 2007-04-03 2007-04-03 Vorrichtung und Verfahren zur Behandlung von Metallschmelzen
EP07012518 2007-06-26
EP20080001357 EP1988181B1 (fr) 2007-04-03 2008-01-24 Procédé au traitement de métal en fusion

Publications (2)

Publication Number Publication Date
EP1988181A1 EP1988181A1 (fr) 2008-11-05
EP1988181B1 true EP1988181B1 (fr) 2010-09-01

Family

ID=38649357

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080001357 Not-in-force EP1988181B1 (fr) 2007-04-03 2008-01-24 Procédé au traitement de métal en fusion

Country Status (2)

Country Link
EP (1) EP1988181B1 (fr)
DE (1) DE102007016102A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU534839B2 (en) * 1981-10-19 1984-02-16 Council For Mineral Technology Refining ferro chrome by thermal plasma
GB9018441D0 (en) * 1990-08-22 1990-10-03 Tetronics Res & Dev Co Ltd Treatment of oxide containing dusts
US5223691A (en) * 1991-06-03 1993-06-29 Motorola, Inc. Plasma based soldering method requiring no additional heat sources or flux
DE4225378A1 (de) * 1992-03-20 1993-09-23 Linde Ag Verfahren zum verloeten von leiterplatten unter niederdruck
JP4305792B2 (ja) * 1999-03-25 2009-07-29 ソニー株式会社 金属の精製方法及び精錬方法

Also Published As

Publication number Publication date
EP1988181A1 (fr) 2008-11-05
DE102007016102A1 (de) 2008-10-09

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