EP0839918B1 - Verfahren und Vorrichtung zum Kühlen eines Gegenstandes - Google Patents
Verfahren und Vorrichtung zum Kühlen eines Gegenstandes Download PDFInfo
- Publication number
- EP0839918B1 EP0839918B1 EP96810731A EP96810731A EP0839918B1 EP 0839918 B1 EP0839918 B1 EP 0839918B1 EP 96810731 A EP96810731 A EP 96810731A EP 96810731 A EP96810731 A EP 96810731A EP 0839918 B1 EP0839918 B1 EP 0839918B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coolant
- jets
- microchannels
- process according
- article
- 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.)
- Expired - Lifetime
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000002826 coolant Substances 0.000 claims abstract description 68
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- 239000011521 glass Substances 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims abstract description 3
- 238000009835 boiling Methods 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 238000005266 casting Methods 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 229910000838 Al alloy Inorganic materials 0.000 description 7
- 238000001704 evaporation Methods 0.000 description 5
- 230000008020 evaporation Effects 0.000 description 5
- 239000007921 spray Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/667—Quenching devices for spray quenching
Definitions
- the invention relates to a method for cooling an object by applying a liquid coolant to the Surface of the object in the form of continuous Coolant jets.
- a liquid coolant to the Surface of the object in the form of continuous Coolant jets.
- One is also within the scope of the invention device suitable for carrying out the method and an application of the method or use of the device.
- the metal When cooling pressed profiles and hot-rolled strips made of an aluminum alloy from the pressing or hot rolling temperature the metal needs to be from about 450 to 480 ° C in as possible in a short time to less than about 300 ° C, in many cases cooled to about 100 ° C.
- EP-A-0343103 describes a method for cooling pressed profiles and roller belts known, in which by means of spray nozzles a water mist is generated. However, this procedure is for the rapid inline cooling of hot rolled strips because of the not suitable for low heat transfer. This previously known Cooling method using spray nozzles is in EP-A-0429394 described for cooling cast metal strands.
- EP-A-0578607 describes an inline method for cooling profiles emerging from an extruder disclosed which the spray nozzles known from EP-A-0343103 in Modules are installed.
- EP-A-0695590 describes a method and a device for cooling hot-rolled plates and strips an aluminum alloy known, with cut plates or belts continuously pass through a cooling station and in this directly supplied with water via flat jet nozzles become.
- the water jet is additionally made by means of a flat jet nozzle Air or water jets are periodically deflected in such a way that the water jet hitting the plate or belt surface performs a wiping motion.
- Flat jet nozzles result when the water jet hits a narrow one on the plate or belt surface Impact area with high heat transfer.
- This locally high Heat transfer together with the wiping movement leads to one even heat removal.
- the heat removal is too low, for example for hot rolled strips from an aluminum alloy after the last one Stitch a short distance before reeling, i.e. in very short time, to a temperature of less than 300 ° C cool.
- the invention is therefore based on the object of a method and a device of the type mentioned create with which the cooling capacity compared to known Methods and devices can be further increased.
- Complete evaporation prevents training a water film that inhibits heat extraction. Arise no local build-up of coolant that leads to an uncontrolled Cooling and thus too different mechanical properties near the surface of the object being able to lead. Such differences in mechanical For example, a later forming operation due to a locally different Forming behavior disturbs the surface quality impact.
- the method according to the invention is also particularly suitable for all areas of application where there is an explosive evaporation of coolant can have a negative or even dangerous effect can.
- the cooling capacity can be achieved with the method according to the invention optimally control what makes the generation more accurate and reproducible Cooling conditions enabled.
- the coolant becomes Achieving optimal cooling performance over a variety Coolant jets distributed over the surface to be cooled applied small diameter.
- Each jet of coolant has a diameter from 20 to 200 ⁇ m, in particular 30 to 100 ⁇ m.
- the distance the points of impact of adjacent coolant jets on the surface is preferably 2 to 10 mm, in particular about 3 to 5 mm.
- a maximum cooling performance results with a laminar Flow of the coolant jets.
- the dwell time of the item in the cooling zone is very in short, care must be taken to ensure that the heat is removed from the surface of the object for the most part by evaporation and only to a small extent by heating of the coolant to the evaporation temperature. If the temperature of the surface is too low There is a risk that the coolant coolant not completely evaporated and thus the cooling capacity reducing coolant film on the surface leads.
- the temperature of the coolant is therefore preferably a maximum of 50 ° C, in particular a maximum of 10 ° C, lower than that Boiling point of the coolant.
- water is preferably used as a coolant for aluminum alloys water is preferably used.
- the object to be cooled is expediently transverse to the beam direction of the coolant moves. This happens during cooling stationary objects preferably by oscillation or Vibration, with inline cooling through continuous Displacement of the object to be cooled. alternative or in addition to the movement of the object to be cooled can also the coolant jets or the cooling device through oscillation or vibration relative to the object be moved.
- Suitable device is characterized by the features of claim 7 and comprises a plurality of nozzles Applying the individual coolant jets to the surface of the object.
- Each nozzle has one Diameters from 20 to 200 ⁇ m, preferably 30 to 100 ⁇ m, on.
- the nozzles are in a carrier as microchannels made of graphite, ceramic, glass, metal or plastic and the carrier is made of sheet-like Stack of elements, the surfaces of the elements serving as stacking surfaces are fluid-tight against each other.
- the carrier is made of sheet-like Stack of elements, the surfaces of the elements serving as stacking surfaces are fluid-tight against each other.
- the are facing surfaces of adjacent elements Grooves arranged to form the microchannels such that Cooling liquid on one side of the formed by the grooves Microchannels enter and on the other side of the Microchannels can leak out.
- the elements are preferred as plates with plane-parallel ones Surfaces formed and have at least one opening to supply the coolant to the microchannels.
- the grooves connect the opening to the outer edge of the preferably annular plates.
- the grooves have a width and a depth of 20 to 200 microns, preferably 30 to 100 microns.
- the individual elements According to the desired distance of the impact points have adjacent coolant jets on the surface the individual elements have a thickness of 2 to 10 mm, preferably 3 to 5 mm.
- a preferred application of the method according to the invention as well as the device is in continuous cooling a hot-rolled aluminum alloy strip seen.
- the high cooling capacity of the method according to the invention allows in the often limited existing Space between the rolling mill and reel device to arrange a small and powerful cooling unit.
- the method and the device according to the invention can also ideal for applying a thin layer of release agent on the still hot surface of a mold be used.
- the release agent becomes the coolant added. Because the coolant when hitting the hot surface completely evaporated, the application takes place of the release agent is extremely even.
- the cooling nozzles can be used to apply release agents to the mold surface a die-casting mold mounted on a tree in the usual way be after the demolding between the mold halves of the opened mold is introduced.
- a nozzle module has a tubular support 10 with a central feed channel 12 for feed a coolant to microchannels or nozzles 14.
- the Microchannels 14 connect the central feed channel 12 with the surface of the carrier 10.
- the coolant exits through the microchannels 14 in the form of individual coolant jets 16 and strikes the hot surface 20 of an object 18, for example a hot-rolled strip made of an aluminum alloy, essentially at right angles.
- an object for example a hot-rolled strip made of an aluminum alloy, essentially at right angles.
- T k in the feed channel 12 is, for example, approximately 90 ° C., ie it is approximately 10 ° C. below the boiling temperature T s of water.
- the length 1 of the microchannels 14 is 10 mm, for example and the diameter c of the channels is e.g. at 50 ⁇ m.
- the distance of the impact points the coolant jets 16 on the surface 20 of item 18 is e.g. 3 mm.
- the dimensions of the microchannels 14 or the coolant jets 16 is chosen so that the coolant jets 16 at Impact on the surface 20 of the hot object 18 completely change into coolant vapor 22.
- the nozzle module shown in FIGS. 2 to 4 consists of individual annular plates 32 from, for example Alumina ceramics with plane-parallel polished surfaces 34 with a small degree of roughness.
- surfaces 34 are radial from central opening 36 grooves 40 running to the outer edge 38 of the plate 32 arranged.
- the grooves have a width b and a depth t of, for example, 50 ⁇ m each.
- the individual tiles 32 a thickness e of, for example, 3 mm between two end plates 42 fixed stack 30 lined up.
- One of the two end plates 42 has a coolant inlet opening 44 provided in one from the central opening 36 of the individual plates 32 formed coolant channel 46 of the stack 30 opens.
- 5 and 6 are the individual plates 32 rectangular and have several central openings 36, of which each in one of the Surfaces 34 incorporated grooves 40 also to the edge 38 of the plate 32 run.
- the cooling surface covered by the coolant jets 16 on the belt 50 is approximately 2 m 2 with a bandwidth of 2 m and a length of the cooling station of 1 m. With such an order, the total number of microchannels 14 is approximately 200,000. Depending on the desired cooling capacity, the coolant can be applied to one or both surfaces of the belt 50.
- the cooling capacity of the method according to the invention was determined on the basis of cooling tests on test specimens.
- a coolant jet was applied to the end face of a cylindrical specimen made of aluminum, 50 mm long and 4 mm in diameter.
- the time course of the temperature of the test specimen under different blasting conditions is shown in FIG. 8. Water with a temperature of 18 ° C. was used as the coolant.
- the following values were selected as the operating parameters for the coolant jet: Curve A Beam diameter 100 ⁇ m water pressure 4 bar Cooling water flow 9.66 ml / min
- Curve B Beam diameter 100 ⁇ m water pressure 8 bar Cooling water flow 13.4 ml / min
- Curves A and B clearly show the high cooling capacity of the inventive method.
- the cooling rates achieved were at 50 ° C / sec (curve A) or 200 ° C / sec (Curve B).
- the cooling rates are comparatively low for the specimen used here with conventional Cooling between about 5 and 15 ° C / sec.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Continuous Casting (AREA)
- Extrusion Of Metal (AREA)
- Nozzles (AREA)
- Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Description
- Fig. 1
- eine Prinzipdarstellung des Kühlverfahrens mit einzelnen Kühlmittelstrahlen;
- Fig. 2
- die Seitenansicht einer ersten Ausführungsform eines Düsenmoduls;
- Fig. 3
- einen Schnitt durch das Modul von Fig. 2 nach deren Linie I-I;
- Fig. 4
- einen Schnitt durch ein Element des Moduls von Fig. 2 nach der Linie II-II in Fig. 3;
- Fig. 5
- die Seitenansicht einer zweiten Ausführungsform eines Düsenmoduls;
- Fig. 6
- einen Schnitt durch das Modul von Fig. 5 nach deren Linie III-III;
- Fig. 7
- eine Schrägsicht auf eine Anordnung mit Düsenmodulen zum Kühlen eines warmgewalzten Bandes;
- Fig. 8
- den zeitlichen Verlauf der Temperatur beim Abkühlen von Probekörpern.
Kurve A | Strahldurchmesser | 100 µm |
Wasserdruck | 4 bar | |
Kühlwasserdurchfluss | 9.66 ml/min |
Kurve B | Strahldurchmesser | 100 µm |
Wasserdruck | 8 bar | |
Kühlwasserdurchfluss | 13.4 ml/min |
Claims (15)
- Verfahren zum Kühlen eines Gegenstandes durch Aufbringen eines flüssigen Kühlmittels auf die Oberfläche (20) des Gegenstandes (18) in der Form kontinuierlicher Kühlmittelstrahlen (16),
dadurch gekennzeichnet, dass
das Kühlmittel über eine Vielzahl über die zu kühlende Oberfläche (20) verteilte, einen Durchmesser (d) von 20 bis 200 µm aufweisende Kühlmittelstrahlen (16) aufgebracht wird, wobei die Förderleistung jedes Kühlmittelstrahls (16) so eingestellt wird, dass das auf die Oberfläche (20) auftreffende Kühlmittel vollständig verdampft. - Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass jeder Kühlmittelstrahl (16) einen Durchmesser (d) von 30 bis 100 µm aufweist.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Abstand (a) der Auftreffpunkte benachbarter Kühlmittelstrahlen (16) auf der Oberfläche (20) 2 bis 10 mm, vorzugsweise 3 bis 5 mm, beträgt.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Kühlmittelstrahlen (16) eine laminare Strömung aufweisen.
- Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Temperatur (Tk) des Kühlmittels maximal 50°C, vorzugsweise maximal 10°C, niedriger liegt als dessen Siedetemperatur (Ts).
- Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass sich der zu kühlende Gegenstand (18) und die Kühlmittelstrahlen (16) relativ zu einander quer zur Strahlrichtung (x) des Kühlmittels bewegen, vorzugsweise durch Oszillation des zu kühlenden Gegenstandes (18) und/oder der Kühlmittelstrahlen (16) und/ oder durch kontinuierliche Verschiebung des zu kühlenden Gegenstandes (18).
- Vorrichtung zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 6, mit einer Vielzahl von Düsen (14) zum Aufbringen der einzelnen Kühlmittelstrahlen (16) auf die Oberfläche (20) des Gegenstandes (18), dadurch gekennzeichnet, dass die Düsen als Mikrokanäle (14) mit einem Durchmesser (c) von 20 bis 200 µm in einem Träger (10) aus Graphit, Keramik, Glas, Metall oder Kunststoff ausgebildet sind und der Träger (10) durch einen aus flächenförmigen Elementen (32) zusammengesetzten Stapel (30) gebildet ist, wobei die als Stapelflächen dienenden Oberflächen (34) der Elemente einander fluiddicht anliegen, und wobei in wenigstens eine der einander zugewandten Oberflächen (34) benachbarter Elemente (32) Rillen (40) zur Bildung der Mikrokanäle (14) derart angeordnet sind, dass Kühlflüssigkeit auf der einen Seite der durch die Rillen (40) gebildeten Mikrokanäle eintreten und auf der anderen Seite der Mikrokanäle austreten kann.
- Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass die Mikrokanäle (14) einen Durchmesser (c) von 30 bis 100 µm aufweisen.
- Vorrichtung nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass die Elemente als Plättchen (32) mit planparallelen Oberflächen (34) ausgebildet sind.
- Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass die Plättchen (32) wenigstens eine Oeffnung (36) zur Zuführung der Kühlflüssigkeit an die Mikrokanäle (14) aufweisen und die Rillen (40) die Oeffnung (36) mit dem äusseren Rand (38) der Plättchen (32) verbinden.
- Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, dass die Plättchen (32) kreisringförmig ausgebildet sind.
- Vorrichtung nach einem der Ansprüche 7 bis 11, dadurch gekennzeichnet, dass die Rillen (40) eine Breite (b) und eine Tiefe (t) von 20 bis 200 µm, vorzugsweise 30 bis 100 µm, aufweisen.
- Vorrichtung nach einem der Ansprüche 7 bis 12, dadurch gekennzeichnet, dass die einzelnen Elemente (32) eine Dicke (e) von 2 bis 10 mm, vorzugweise 3 bis 5 mm, aufweisen.
- Anwendung des Verfahrens nach einem der Ansprüche 1 bis 6 zum gleichmässigen Auftragen einer dünnen Schicht eines Formtrennmittels auf die Oberfläche einer Giessform durch Beimischung des Trennmittels zum Kühlmittel.
- Verwendung der Vorrichtung nach einem der Ansprüche 7 bis 13 zum gleichmässigen Auftragen einer dünnen Schicht eines Formtrennmittels auf die Oberfläche einer Giessform durch Beimischung des Trennmittels zum Kühlmittel.
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE59608802T DE59608802D1 (de) | 1996-11-01 | 1996-11-01 | Verfahren und Vorrichtung zum Kühlen eines Gegenstandes |
AT96810731T ATE213785T1 (de) | 1996-11-01 | 1996-11-01 | Verfahren und vorrichtung zum kühlen eines gegenstandes |
EP96810731A EP0839918B1 (de) | 1996-11-01 | 1996-11-01 | Verfahren und Vorrichtung zum Kühlen eines Gegenstandes |
AU40986/97A AU722395B2 (en) | 1996-11-01 | 1997-10-15 | Process and device for cooling an article |
ZA9709364A ZA979364B (en) | 1996-11-01 | 1997-10-20 | Process and device for cooling an article. |
CA002218781A CA2218781C (en) | 1996-11-01 | 1997-10-21 | Process and device for cooling an article |
US08/955,286 US5902543A (en) | 1996-11-01 | 1997-10-21 | Process and device for cooling an article |
NO19975000A NO319260B1 (no) | 1996-11-01 | 1997-10-30 | Fremgangsmate og anordning for kjoling av en gjenstand, og anvendelse av anordningen. |
JP30180597A JP3984339B2 (ja) | 1996-11-01 | 1997-11-04 | 物品を冷却する方法及び装置並びにその使用方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96810731A EP0839918B1 (de) | 1996-11-01 | 1996-11-01 | Verfahren und Vorrichtung zum Kühlen eines Gegenstandes |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0839918A1 EP0839918A1 (de) | 1998-05-06 |
EP0839918B1 true EP0839918B1 (de) | 2002-02-27 |
Family
ID=8225741
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96810731A Expired - Lifetime EP0839918B1 (de) | 1996-11-01 | 1996-11-01 | Verfahren und Vorrichtung zum Kühlen eines Gegenstandes |
Country Status (9)
Country | Link |
---|---|
US (1) | US5902543A (de) |
EP (1) | EP0839918B1 (de) |
JP (1) | JP3984339B2 (de) |
AT (1) | ATE213785T1 (de) |
AU (1) | AU722395B2 (de) |
CA (1) | CA2218781C (de) |
DE (1) | DE59608802D1 (de) |
NO (1) | NO319260B1 (de) |
ZA (1) | ZA979364B (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10207584A1 (de) * | 2002-02-22 | 2003-09-11 | Vits Maschb Gmbh I Ins | Verfahren zum Abkühlen von Bändern oder Platten aus Metall und Kühlvorrichtung |
EP2085489A1 (de) * | 2008-02-02 | 2009-08-05 | Novaltec Sàrl | Flüssigkeits-Mikrostrahlsystem |
FR2942629B1 (fr) * | 2009-03-02 | 2011-11-04 | Cmi Thermline Services | Procede de refroidissement d'une bande metallique circulant dans une section de refroidissement d'une ligne de traitement thermique en continu, et installation de mise en oeuvre dudit procede |
EP3067652B1 (de) * | 2015-03-11 | 2019-11-13 | Politechnika Gdanska | Wärmetauscher und wärmetauschverfahren |
CN115007824A (zh) * | 2022-05-11 | 2022-09-06 | 福建圣力智能工业科技股份有限公司 | 一种水平连铸机用水冷装置 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE955042C (de) * | 1953-08-02 | 1956-12-27 | Friedrichshuette Ag | Verfahren und Vorrichtung zum Abkuehlen von warmgewalztem, flachem Walzgut |
DE1214186B (de) * | 1956-09-05 | 1966-04-14 | United Steel Companies Ltd | Verfahren zum Kuehlen warmgewalzter metallischer Baender oder Bleche |
US3035865A (en) * | 1958-11-21 | 1962-05-22 | James A Sokaly | Head rest for hair dryers |
DE1558798B2 (de) * | 1967-04-24 | 1977-03-03 | Swiss Aluminium Ltd., Chippis (Schweiz) | Verfahren zur kuehlung von eine temperatur von ueber 371 grad c aufweisenden formkoerpern aus kupfer, aluminium oder legierungen dieser metalle |
NL145782B (nl) * | 1970-01-20 | 1975-05-15 | Koninklijke Hoogovens En Staal | Koelsysteem. |
JPS5727926B2 (de) * | 1973-11-28 | 1982-06-14 | ||
SU619524A1 (ru) * | 1976-08-17 | 1978-08-15 | Институт черной металлургии | Способ охлаждени проката |
US4407487A (en) * | 1980-01-15 | 1983-10-04 | Heurtey Metallurgie | Device for cooling metal articles |
EP0343103B1 (de) | 1988-05-19 | 1992-11-11 | Alusuisse-Lonza Services Ag | Verfahren und Vorrichtung zum Kühlen eines Gegenstandes |
US4882107A (en) * | 1988-11-23 | 1989-11-21 | Union Carbide Chemicals And Plastics Company Inc. | Mold release coating process and apparatus using a supercritical fluid |
US5076344A (en) * | 1989-03-07 | 1991-12-31 | Aluminum Company Of America | Die-casting process and equipment |
ZA908728B (en) * | 1989-11-23 | 1991-08-28 | Alusuisse Lonza Services Ag | Cooling of cast billets |
CH686072A5 (de) | 1992-06-19 | 1995-12-29 | Alusuisse Lonza Services Ag | Sprayanlage zum Kuhlen von Profilen. |
US5640872A (en) | 1994-07-20 | 1997-06-24 | Alusuisse-Lonza Services Ltd. | Process and device for cooling heated metal plates and strips |
-
1996
- 1996-11-01 DE DE59608802T patent/DE59608802D1/de not_active Expired - Lifetime
- 1996-11-01 AT AT96810731T patent/ATE213785T1/de active
- 1996-11-01 EP EP96810731A patent/EP0839918B1/de not_active Expired - Lifetime
-
1997
- 1997-10-15 AU AU40986/97A patent/AU722395B2/en not_active Ceased
- 1997-10-20 ZA ZA9709364A patent/ZA979364B/xx unknown
- 1997-10-21 US US08/955,286 patent/US5902543A/en not_active Expired - Lifetime
- 1997-10-21 CA CA002218781A patent/CA2218781C/en not_active Expired - Lifetime
- 1997-10-30 NO NO19975000A patent/NO319260B1/no not_active IP Right Cessation
- 1997-11-04 JP JP30180597A patent/JP3984339B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
AU722395B2 (en) | 2000-08-03 |
CA2218781A1 (en) | 1998-05-01 |
CA2218781C (en) | 2006-10-03 |
JP3984339B2 (ja) | 2007-10-03 |
NO975000L (no) | 1998-05-04 |
AU4098697A (en) | 1998-05-07 |
ATE213785T1 (de) | 2002-03-15 |
US5902543A (en) | 1999-05-11 |
NO975000D0 (no) | 1997-10-30 |
EP0839918A1 (de) | 1998-05-06 |
JPH10156427A (ja) | 1998-06-16 |
NO319260B1 (no) | 2005-07-11 |
DE59608802D1 (de) | 2002-04-04 |
ZA979364B (en) | 1998-05-12 |
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