EP1988181B1 - Procédé au traitement de métal en fusion - Google Patents
Procédé au traitement de métal en fusion Download PDFInfo
- 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
Links
- 229910052751 metal Inorganic materials 0.000 title claims description 19
- 239000002184 metal Substances 0.000 title claims description 19
- 238000000034 method Methods 0.000 title claims description 12
- 229910000679 solder Inorganic materials 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 6
- 150000002739 metals Chemical class 0.000 claims description 5
- 230000001603 reducing effect Effects 0.000 claims description 4
- 238000005476 soldering Methods 0.000 description 7
- 239000000155 melt Substances 0.000 description 6
- 230000009467 reduction Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 206010063409 Acarodermatitis Diseases 0.000 description 2
- 241000447727 Scabies Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 208000005687 scabies Diseases 0.000 description 2
- 241001136792 Alle Species 0.000 description 1
- 206010010904 Convulsion Diseases 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 235000008216 herbs Nutrition 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/006—General 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/16—Remelting metals
- C22B9/22—Remelting metals with heating by wave energy or particle radiation
- C22B9/226—Remelting metals with heating by wave energy or particle radiation by electric discharge, e.g. plasma
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
- F27B3/08—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces heated electrically, with or without any other source of heat
- F27B3/085—Arc furnaces
-
- 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
- F27D7/00—Forming, maintaining or circulating atmospheres in heating chambers
- F27D7/06—Forming or maintaining special atmospheres or vacuum within heating chambers
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/05—Refining 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)
- 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. - 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.
- 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.
- 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.
- 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.
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)
| 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 |
-
2007
- 2007-04-03 DE DE200710016102 patent/DE102007016102A1/de not_active Withdrawn
-
2008
- 2008-01-24 EP EP20080001357 patent/EP1988181B1/fr not_active Not-in-force
Also Published As
| Publication number | Publication date |
|---|---|
| EP1988181A1 (fr) | 2008-11-05 |
| DE102007016102A1 (de) | 2008-10-09 |
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