NO140169B - PROCEDURE AND KOKILLE FOR FULL CONTINUOUS CASTING OF METALLIC STRINGS - Google Patents
PROCEDURE AND KOKILLE FOR FULL CONTINUOUS CASTING OF METALLIC STRINGS Download PDFInfo
- Publication number
- NO140169B NO140169B NO750666A NO750666A NO140169B NO 140169 B NO140169 B NO 140169B NO 750666 A NO750666 A NO 750666A NO 750666 A NO750666 A NO 750666A NO 140169 B NO140169 B NO 140169B
- Authority
- NO
- Norway
- Prior art keywords
- water
- cooling zone
- air mixture
- mold
- parallel
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 9
- 238000009749 continuous casting Methods 0.000 title claims description 5
- 238000001816 cooling Methods 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 12
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000498 cooling water Substances 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000005266 casting Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 241001183191 Sclerophthora macrospora Species 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/049—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for direct chill casting, e.g. electromagnetic casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Inorganic Fibers (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Casting Devices For Molds (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Description
Oppfinnelsen vedrører en fremgangsmåte og en kokille for helkontinuerlig støping av metalliske strenger, særlig tynne bånd av aluminium, i vannkjølte gjennomgangskokiller med en indirekte kjølt formgivningsdel og direkte kjøling av strengen ved hjelp av en vann-luftblanding. The invention relates to a method and a mold for fully continuous casting of metallic strands, in particular thin strips of aluminium, in water-cooled through molds with an indirectly cooled forming part and direct cooling of the strand by means of a water-air mixture.
Ved kjente slike fremgangsmåter og kokiller skjer det en avkjøling av strengen til kjølevannstemperatur, hvorved det består fare for at det i strengen opptrer sterke indre spennin-ger som ved støping av legeringer kan føre til brudd i strengen i lengderetning. Dessuten består ved den vanlige brå avkjøling fare for dannelse av ører ved den senere forming. With such known methods and moulds, the strand is cooled to cooling water temperature, whereby there is a risk of strong internal stresses occurring in the strand which, when casting alloys, can lead to breakage of the strand in the longitudinal direction. In addition, with the usual sudden cooling, there is a risk of formation of ears during the later shaping.
Den oppgave som ligger til grunn for oppfinnelsen er The task underlying the invention is
å tilveiebringe en fremgangsmåte og en kokille, hvormed en opp-bryting av strengene kan unngås med sikkerhet og hvor dessuten ikke mer de inntil nu vanlige ulemper ved en brå avkjøling må tas med på kjøpet. Dette blir ifølge oppfinnelsen oppnådd ved en fremgangsmåte av den innledningsvis nevnte type ved at vann-luf tblandingen føres i motsatt retning av strengestøpingsretnin-gen frem til den indirekte kjølesone og avsuges der. Ytterlige-re trekk ved oppfinnelsen fremgår av kravene. to provide a method and a mould, with which a breaking up of the strings can be avoided with certainty and where, moreover, the hitherto usual disadvantages of a sudden cooling no longer have to be included in the purchase. According to the invention, this is achieved by a method of the type mentioned at the outset in that the water-air mixture is led in the opposite direction of the string casting direction to the indirect cooling zone and is extracted there. Further features of the invention appear from the claims.
På denne måte lykkes det å holde og å regulere ut-gangstemperaturen for strengen fra kokillen i vilkårlig høyde. Man kan således føre strengen med forholdsvis høy temperatur ut av kokillen og unngå rissdannelsen ved rissømfintlige legeringer. Dessuten lar det seg av den således fremstilte streng frem-stille halvprodukter med definerte egenskaper med hensyn til f. eks. øredannelse, herdbarhet og spenningsfrihet for de støpte formplater. In this way, it is possible to maintain and regulate the exit temperature of the strand from the mold at any height. You can thus pass the string at a relatively high temperature out of the mold and avoid the formation of cracks in alloys prone to cracking. Furthermore, it is possible to produce semi-products with defined properties with regard to e.g. ear formation, hardenability and freedom from stress for the cast form plates.
Den ifølge oppfinnelsen tilstrebede temperaturregu-lering kan fremkomme på forskjellig måte, således f. eks. over innstilling av støpehastigheten eller ved hjelp av vekslende mengder av kjøleluft, henholdsvis kjølevann. The temperature regulation sought according to the invention can occur in different ways, thus e.g. by setting the casting speed or by means of alternating amounts of cooling air, respectively cooling water.
På tegningen er det vist en utførelse av fremgangsmåten ifølge oppfinnelsen av en egnet kokille. The drawing shows an embodiment of the method according to the invention of a suitable mould.
Tegningen viser et loddrett lengdesnitt gjennom en kokille som er bestemt for støping av et tynt bånd. På samme måte kan det imidlertid også støpes større stykker, profiler etc, og hvis ønsket også i loddrett retning. The drawing shows a vertical longitudinal section through a mold intended for casting a thin strip. In the same way, however, larger pieces, profiles etc. can also be cast, and if desired also in a vertical direction.
På tegningen er en plate, som f. eks. består av ma-rinitt, betegnet med 1, og denne plate har en inngangsåpning 2 for flytende metall, som føres inn i retning av pilsen 3 i den av varmeledende metall bestående kokille 4. In the drawing is a plate, which e.g. consists of marinite, denoted by 1, and this plate has an entrance opening 2 for liquid metal, which is introduced in the direction of the pilfer 3 into the mold 4 consisting of heat-conducting metal.
Metallet kommer først inn i den indirekte kjølesone The metal first enters the indirect cooling zone
5 hvor det danner seg en tynn metallskorpe. Den indirekte kjøl-ing av metallet i denne sone skjer ved hjelp av den nedenfor om-talte vann-luftblanding som bevirker den indirekte kjøling av 5 where a thin metal crust forms. The indirect cooling of the metal in this zone takes place with the help of the water-air mixture mentioned below, which causes the indirect cooling of
kokilleveggene 6. I retning av pilen 7 blir det ved kokillens utgangsende i motstrøm til bevegelsesretningen for strengen su-get inn luft, som stryker forbi boringen 8 og ved denne river the mold walls 6. In the direction of the arrow 7, air is sucked in at the exit end of the mold in a countercurrent to the direction of movement of the string, which sweeps past the bore 8 and at this tear
med seg vann som befinner seg under overtrykk i rommet 9. Van-net blir forstøvet, og det danner seg således en vann-luftblanding som beveger seg i motsatt retning til støperetningen og inn-virker på strengen i sonen 10 for direkte kjøling. Det går så videre til rommet 11 hvorfra det suges ut ved hjelp av et ikke vist pumpesystem. Båndet som dannes i kokillen er betegnet med 12. with it water which is under overpressure in room 9. The water network is atomized, and a water-air mixture is thus formed which moves in the opposite direction to the casting direction and acts on the string in zone 10 for direct cooling. It then goes on to room 11 from where it is sucked out using a pump system not shown. The band that forms in the mold is denoted by 12.
Claims (3)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2419684A DE2419684C3 (en) | 1974-04-24 | 1974-04-24 | Method and device for cooling during continuous casting of metal |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO750666L NO750666L (en) | 1975-10-27 |
| NO140169B true NO140169B (en) | 1979-04-09 |
| NO140169C NO140169C (en) | 1979-07-18 |
Family
ID=5913748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO750666A NO140169C (en) | 1974-04-24 | 1975-02-27 | PROCEDURE AND KOKILLE FOR FULL CONTINUOUS CASTING OF METALLIC STRINGS |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS5236936B2 (en) |
| AT (1) | AT335094B (en) |
| BE (1) | BE825597A (en) |
| CA (1) | CA1045781A (en) |
| CH (1) | CH591295A5 (en) |
| DE (1) | DE2419684C3 (en) |
| FR (1) | FR2268584B1 (en) |
| GB (1) | GB1501902A (en) |
| IT (1) | IT1030128B (en) |
| LU (1) | LU72338A1 (en) |
| NL (1) | NL7504474A (en) |
| NO (1) | NO140169C (en) |
| SE (1) | SE400913B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53103931A (en) * | 1977-02-24 | 1978-09-09 | Takaoka Kogyo Kk | Secondary cooling method in continuous casting of cast iron and its device |
| WO2009115877A1 (en) | 2008-03-19 | 2009-09-24 | Nucor Corporation | Strip casting apparatus with casting roll positioning |
| US20090236068A1 (en) | 2008-03-19 | 2009-09-24 | Nucor Corporation | Strip casting apparatus for rapid set and change of casting rolls |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH363129A (en) * | 1958-12-11 | 1962-07-15 | Concast Ag | Process for the continuous casting of metal strands and a permanent mold for carrying out the process |
-
1974
- 1974-04-24 DE DE2419684A patent/DE2419684C3/en not_active Expired
-
1975
- 1975-01-30 AT AT68975*#A patent/AT335094B/en not_active IP Right Cessation
- 1975-02-12 IT IT67368/75A patent/IT1030128B/en active
- 1975-02-17 BE BE2054152A patent/BE825597A/en not_active IP Right Cessation
- 1975-02-18 SE SE7501787A patent/SE400913B/en unknown
- 1975-02-18 CH CH198875A patent/CH591295A5/xx not_active IP Right Cessation
- 1975-02-26 FR FR7506053A patent/FR2268584B1/fr not_active Expired
- 1975-02-27 NO NO750666A patent/NO140169C/en unknown
- 1975-03-14 GB GB10852/75A patent/GB1501902A/en not_active Expired
- 1975-03-21 CA CA222,761A patent/CA1045781A/en not_active Expired
- 1975-04-15 NL NL7504474A patent/NL7504474A/en not_active Application Discontinuation
- 1975-04-22 LU LU72338A patent/LU72338A1/xx unknown
- 1975-04-24 JP JP50049213A patent/JPS5236936B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5236936B2 (en) | 1977-09-19 |
| CA1045781A (en) | 1979-01-09 |
| SE7501787L (en) | 1975-10-27 |
| IT1030128B (en) | 1979-03-30 |
| BE825597A (en) | 1975-06-16 |
| DE2419684A1 (en) | 1975-11-20 |
| DE2419684B2 (en) | 1980-07-03 |
| CH591295A5 (en) | 1977-09-15 |
| NO750666L (en) | 1975-10-27 |
| AT335094B (en) | 1977-02-25 |
| ATA68975A (en) | 1976-06-15 |
| DE2419684C3 (en) | 1981-04-23 |
| LU72338A1 (en) | 1975-08-20 |
| GB1501902A (en) | 1978-02-22 |
| JPS50146525A (en) | 1975-11-25 |
| NL7504474A (en) | 1975-10-28 |
| FR2268584B1 (en) | 1981-07-24 |
| FR2268584A1 (en) | 1975-11-21 |
| SE400913B (en) | 1978-04-17 |
| NO140169C (en) | 1979-07-18 |
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