EP0875317A1 - Method and apparatus for casting metal wires, bars and tubes in an upwardly direction - Google Patents
Method and apparatus for casting metal wires, bars and tubes in an upwardly direction Download PDFInfo
- Publication number
- EP0875317A1 EP0875317A1 EP98107552A EP98107552A EP0875317A1 EP 0875317 A1 EP0875317 A1 EP 0875317A1 EP 98107552 A EP98107552 A EP 98107552A EP 98107552 A EP98107552 A EP 98107552A EP 0875317 A1 EP0875317 A1 EP 0875317A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- casting
- furnace
- cast
- cooler
- primary
- 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
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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
-
- 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
- B22D11/14—Plants for continuous casting
- B22D11/145—Plants for continuous casting for upward 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
- B22D11/005—Continuous casting of metals, i.e. casting in indefinite lengths of wire
-
- 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
- B22D11/006—Continuous casting of metals, i.e. casting in indefinite lengths of tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/50—Pouring-nozzles
Definitions
- the present invention relates to a method and apparatus whereby particularly non-ferrous metal wires, bars and tubes are cast continuously in an upwardly orientation, but the casting is not carried out directly vertically, but in a somewhat inclined direction upwards. After a primary cooler, the cooling of the product takes place as direct water cooling.
- the conventional vertical casting method is a method where the wire, bar or tube is cast vertically upwards, and the equipment consists of a primary cooler connected to the casting nozzle as well as of a secondary cooler.
- the total length of the coolers is roughly of the order of 2 m.
- the crystallization and primary cooling of the metal takes place in the primary cooler, particularly in the nozzle part thereof, the length of which is about 1 - 5 % of the total length of the cooler.
- the secondary cooling takes place in the top part of the primary cooler and in a separate secondary cooler, which again constitutes about half of the total length of the cooler.
- the top part of the primary cooler and the secondary cooler comprise an outer shell, a cooling water distribution pipe and an inner pipe.
- the cooling water is outside the inner pipe and the wire to be cast is inside.
- the relatively high costs of the production line are a remarkable factor, particularly when talking about a limited production, because the structures must be provided in the same fashion as in production lines with a larger production.
- the costs of the production line could be lowered by increasing the casting rate, in which case the number of coilers and coolers would be reduced.
- the inefficiency of the secondary cooling forms an obstacle for increasing the casting rate.
- the maximum casting rate for instance for an unoxidized cast wire with a diameter of 8 mm is about 5m/min when the cooler is clean, the cooling water is sufficiently cold and the melt quality acceptable.
- the method and apparatus of the present invention is developed particularly for small-capacity needs.
- the product to be cast - wire, bar or tube - is cast, instead of the conventional vertically upward casting method, upwardly in an inclined position, at an angle of 20 - 85°, advantageously 30 - 60° in relation to the vertical axis of the furnace, and there is provided only one cooler per wire, while the secondary cooling is carried out directly on the piece to be cast.
- the invention also relates to the respective apparatus.
- the casting nozzle and the cooler are immersed in the melt in an inclined position, so that water sprayed on the cast product and meant for secondary cooling can be poured on the hot, cast product outside the walls of the casting furnace. Moreover, the wire coming out of the cooler need not be much bent to the direction of the coiler.
- the apparatus according to the invention employs a short cooler, which in practice means that the cooler only comprises a primary cooler used in conventional vertical casting.
- the purpose of the short cooler is only to cool the smelting heat off the cast metal and to perform a slight primary cooling in order to obtain solidity in the cast product.
- On top of the hot cast product emerging from the cooler there is sprayed water in order to achieve secondary cooling and to drop the product temperature sufficiently low, so that oxidation does not take place anymore.
- suitable protecting gas such as for instance nitrogen
- the casting apparatus according to figure 1 first of all contains a smelting and casting furnace 1, as well as its support structures 2.
- the primary cooler 4 and the casting nozzle 3 partly inserted therein are immersed in an inclined position, in the case of the drawing at an angle of about 45°, to the melt contained in the furnace.
- the melt is solidified inside the casting nozzle, so that the formed wire or bar 5 can be pulled, by means of transmission drums 6, over the bending drum 7.
- the secondary cooling part of the cast product comprises water jets 8 and a chute 9 placed underneath the cast product and the bending drum in order to recover the water sprayed from the jets.
- the now developed structure is simple and low, wherefore the process is easily controlled.
- the height of the cooler structure remains only about at a fourth part of the height of a conventional cooler.
- direct water cooling is very efficient, and as a consequence casting speed can be increased higher than in conventional methods without oxidizing the cast product. This in turn results in that the number of the coolers and coilers can be reduced and expenses cut.
- each cast product has a specific running motor, in which case there are no obstacles for individual starting of each cast product by reducing speed.
- the size of the motor can be chosen to be very small in order to lower expenses.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Paper (AREA)
Abstract
Description
Claims (8)
- A method for casting non-ferrous metal wires, bars and tubes in an upwardly direction, characterized in that the casting takes place upwardly at an angle of 20 - 85° with respect to the vertical axis of the furnace.
- The method of claim 1, characterized in that the cooling of a cast product is carried out, apart from a primary cooling taking place inside the casting nozzle, also as secondary cooling with water jets directly on the cast product.
- The method of claim 1, characterized in that the casting takes place upwardly at an angle of 30 - 60°.
- The method of claim 1, characterized in that the product cast in the area between the primary cooling zone and the secondary cooling zone is surrounded by protective gas.
- An apparatus for casting non-ferrous wires, bars or tubes (5) in an upwardly direction, said apparatus comprising a smelting and casting furnace (1) and a primary cooler (4) directed upwardly therefrom, as well as a casting nozzle (3) arranged partly inside the primary cooler, characterized in that the primary cooler (4) and the casting nozzle (3) arranged partly therein are placed upwards from the furnace at an angle of 20 - 85° with respect to the vertical axis of the furnace.
- The apparatus according to claim 5, characterized in that the primary cooler (4) and the casting nozzle (3) partly located therein are placed upwards from the furnace at an angle of 30 - 60°.
- The apparatus according to claim 5, characterized in that in the proceeding direction of the product to be cast, there is arranged, in succession to the primary cooler (4), a secondary cooling part, which comprises direct water jets (8) as well as a chute (10) for recovering the water.
- The apparatus according to claim 7, characterized in that the secondary cooling part is located outside the walls of the casting furnace (1).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI971818 | 1997-04-29 | ||
FI971818A FI112447B (en) | 1997-04-29 | 1997-04-29 | Method and apparatus for upward casting of metal wires, rods and pipes |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0875317A1 true EP0875317A1 (en) | 1998-11-04 |
EP0875317B1 EP0875317B1 (en) | 2002-08-21 |
Family
ID=8548751
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98107552A Expired - Lifetime EP0875317B1 (en) | 1997-04-29 | 1998-04-24 | Method and apparatus for casting metal wires, bars and tubes in an upwardly direction |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0875317B1 (en) |
JP (1) | JPH10328787A (en) |
KR (1) | KR19980081807A (en) |
CN (1) | CN1086968C (en) |
DE (1) | DE69807280T2 (en) |
FI (1) | FI112447B (en) |
RU (1) | RU2203769C2 (en) |
TW (1) | TW403680B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002020194A1 (en) * | 2000-09-05 | 2002-03-14 | Outokumpu Oyj | Cooling method and equipment for continuous upward casting of metals |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101214535B (en) * | 2007-12-27 | 2010-06-09 | 东北大学 | Aluminium magnesium alloy and its composite material continuously concreting and forming integrative device |
RU2467827C1 (en) * | 2011-04-26 | 2012-11-27 | Федеральное Государственное Унитарное Предприятие "Научно-Производственное Объединение "Техномаш" | Method of wire casting and plant to this end |
RU2539892C1 (en) * | 2013-11-12 | 2015-01-27 | Федеральное Государственное Унитарное Предприятие "Научно-Производственное Объединение "Техномаш" | Wire casting and plant to this end |
JP6701615B2 (en) * | 2014-03-10 | 2020-05-27 | トヨタ自動車株式会社 | Pull-up continuous casting apparatus and pull-up continuous casting method |
JP6265172B2 (en) * | 2015-06-15 | 2018-01-24 | 株式会社豊田中央研究所 | Pull-up continuous casting equipment |
CN109290534B (en) * | 2018-11-21 | 2020-08-04 | 徐州诚凯知识产权服务有限公司 | Crystallizer for manufacturing copper bars |
CN110202121B (en) * | 2019-07-15 | 2020-08-04 | 上海交通大学 | Alloy casting method for obtaining fine secondary dendrite arm spacing by using double cooling conditions |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1489021A (en) * | 1965-11-30 | 1967-07-21 | Soc Metallurgique Imphy | Continuous casting installation of hollow bodies |
FR2367560A1 (en) * | 1976-10-15 | 1978-05-12 | Michelin & Cie | DEVELOPMENT AT INSTA |
JPS58187243A (en) * | 1982-04-26 | 1983-11-01 | Atsumi Ono | Method and device for diagonal upward type continuous casting of metallic molding |
JPS59223144A (en) * | 1983-06-02 | 1984-12-14 | Sumitomo Metal Ind Ltd | Production of hollow billet by continuous casting |
EP0165456A2 (en) * | 1984-05-18 | 1985-12-27 | Irving Rossi | Process and apparatus for making thin steel slabs |
EP0481380A1 (en) * | 1990-10-17 | 1992-04-22 | Outokumpu Castform Oy | Apparatus for intensifying cooling in the casting of metal objects |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI46693C (en) * | 1970-05-19 | 1973-06-11 | Outokumpu Oy | Equipment arrangement for upward and continuous casting of pipes, rods, plates, etc. |
-
1997
- 1997-04-29 FI FI971818A patent/FI112447B/en active
-
1998
- 1998-04-24 EP EP98107552A patent/EP0875317B1/en not_active Expired - Lifetime
- 1998-04-24 DE DE69807280T patent/DE69807280T2/en not_active Expired - Fee Related
- 1998-04-28 CN CN98107778A patent/CN1086968C/en not_active Expired - Fee Related
- 1998-04-28 KR KR1019980015179A patent/KR19980081807A/en not_active Application Discontinuation
- 1998-04-28 RU RU98107843/02A patent/RU2203769C2/en not_active IP Right Cessation
- 1998-04-28 JP JP10118309A patent/JPH10328787A/en active Pending
- 1998-05-04 TW TW087106832A patent/TW403680B/en active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1489021A (en) * | 1965-11-30 | 1967-07-21 | Soc Metallurgique Imphy | Continuous casting installation of hollow bodies |
FR2367560A1 (en) * | 1976-10-15 | 1978-05-12 | Michelin & Cie | DEVELOPMENT AT INSTA |
JPS58187243A (en) * | 1982-04-26 | 1983-11-01 | Atsumi Ono | Method and device for diagonal upward type continuous casting of metallic molding |
JPS59223144A (en) * | 1983-06-02 | 1984-12-14 | Sumitomo Metal Ind Ltd | Production of hollow billet by continuous casting |
EP0165456A2 (en) * | 1984-05-18 | 1985-12-27 | Irving Rossi | Process and apparatus for making thin steel slabs |
EP0481380A1 (en) * | 1990-10-17 | 1992-04-22 | Outokumpu Castform Oy | Apparatus for intensifying cooling in the casting of metal objects |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 008, no. 028 (M - 274) 7 February 1984 (1984-02-07) * |
PATENT ABSTRACTS OF JAPAN vol. 009, no. 098 (M - 375) 27 April 1985 (1985-04-27) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002020194A1 (en) * | 2000-09-05 | 2002-03-14 | Outokumpu Oyj | Cooling method and equipment for continuous upward casting of metals |
Also Published As
Publication number | Publication date |
---|---|
DE69807280D1 (en) | 2002-09-26 |
CN1202401A (en) | 1998-12-23 |
RU2203769C2 (en) | 2003-05-10 |
JPH10328787A (en) | 1998-12-15 |
KR19980081807A (en) | 1998-11-25 |
FI971818A (en) | 1998-10-30 |
FI971818A0 (en) | 1997-04-29 |
DE69807280T2 (en) | 2002-12-05 |
TW403680B (en) | 2000-09-01 |
EP0875317B1 (en) | 2002-08-21 |
CN1086968C (en) | 2002-07-03 |
FI112447B (en) | 2003-12-15 |
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