EP2490842B1 - Procede pour fabriquer un lingot metallique comportant un alesage, lingot et dispositif de moulage associes - Google Patents
Procede pour fabriquer un lingot metallique comportant un alesage, lingot et dispositif de moulage associes Download PDFInfo
- Publication number
- EP2490842B1 EP2490842B1 EP09768538.2A EP09768538A EP2490842B1 EP 2490842 B1 EP2490842 B1 EP 2490842B1 EP 09768538 A EP09768538 A EP 09768538A EP 2490842 B1 EP2490842 B1 EP 2490842B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- liquid metal
- ingot
- metal
- liquid
- steel
- 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.)
- Active
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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
- B22D7/00—Casting ingots, e.g. from ferrous metals
- B22D7/06—Ingot moulds or their manufacture
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/06—Vacuum casting, i.e. making use of vacuum to fill the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D7/00—Casting ingots, e.g. from ferrous metals
- B22D7/04—Casting hollow ingots
Definitions
- the present invention relates to the manufacture of a metal ingot having a longitudinal bore and in particular a steel ingot for producing forged annular parts.
- An object of the present invention is to overcome these disadvantages by providing a means for obtaining forging ingots having a longitudinal bore, while having a sufficiently low hydrogen content from the beginning, in order to be able to guarantee conditions of hydrogen content. low on the finished parts, without many thermal degassing treatments being necessary.
- the invention further relates to a steel ingot comprising a longitudinal bore has been obtained by vacuum casting.
- the ingot may for example have a generally rotational shape.
- the ingot may have a hydrogen content of less than 1.2 ppm, preferably less than or equal to 1 ppm and more preferably less than or equal to 0.8 ppm.
- FIG. 1 there is shown an installation for vacuum casting a metal ingot, and in particular a steel ingot, generally of revolution shape and having a longitudinal central bore.
- the mold 1 rests on a wedge 17 whose height is adapted so that the mold is completely disposed inside the vacuum casting chamber 5, which vacuum casting chamber 5 rests under the ground 16.
- the mold 1 comprises a bottom marked generally by 27 comprising a wedging means 18 and a cast iron counterplate 20.
- the bottom is adapted to obtain the desired ingot height.
- the wedging means is for example cast iron.
- the space between the wedging means and the side wall of the mold is filled with dry sand 19.
- the mold 2, the core 4 and the bottom 27 define a generally annular mold cavity 3A intended to receive the liquid metal.
- a means 11A for receiving and distributing the liquid steel which is introduced into the vacuum chamber is disposed at the upper part of the mold.
- This means 11A for receiving and distributing the liquids is constituted by a cup-shaped distributor 12 consisting of tabular alumina, which comprises at its periphery channels 13 opening vertically above the molding cavity 3A.
- the channels 13 are intended to drive the liquid steel which is contained inside the distributor 12 in the molding cavity 3A.
- These channels 13. are of refractory material and are contained in housings 14 filled with sand. They rest on a support plate 15 which bears on the upper part of the vertical core 4 and on the upper face of the mold 2.
- the distributor 12 comprises an inner bowl 121 from which four channels 13 which are contained in four holding boxes containing sand 14 and which are supported by the arms 122 of the support plate 15. These arms 122, which are arranged in a cross, rest on the top of the mold 2.
- the mold 1 comprises massaging plates 22 which surround a on the other hand, the mold 2.
- massing plates 22 are known in themselves to those skilled in the art.
- the vacuum casting chamber 5 is evacuated by pumping through the pipe 7 using a vacuum pumping installation known in itself. Even of the skilled person. Thus, the pressure of the atmosphere within the vacuum chamber 5 is lowered to a value that can fall below 0.5 Torr, and better below 0.2 Torr, and better still below 0.1 Torr.
- the vacuum is achieved in the enclosure, there is a steel pocket above the intermediate pocket 10, it pours liquid steel in the pocket intermediate 10.
- the drawer nozzle 11 is opened, which makes it possible to introduce liquid steel inside the vacuum enclosure 5.
- This liquid steel forms a first jet 50 which forms a reserve 51 of liquid steel in the bowl 121 of the distributor 12.
- the reserve 51 of liquid steel then flows through the channels 13 to form secondary jets 52 which introduce liquid steel inside the molding cavity 3A and which gradually fill this molding cavity 3 forming a volume of liquid steel 53 inside the molding cavity 3A.
- it may, however, from a liquid steel having a hydrogen content greater than 1.5 ppm, while still obtaining an ingot whose hydrogen content will be substantially less than 0.8 ppm.
- the molding cavity 3A filled with liquid steel it proceeds in a known manner by allowing the ingot to solidify inside the vacuum casting chamber 5.
- a metal ingot in particular a steel ingot, and in particular low alloy steel, having high metal properties, which can be used to manufacture forgings for heavy equipment, such as plant vessels, is obtained.
- the ingot has a very low hydrogen content, which can be guaranteed less than 1, 2 ppm and even less than 1 ppm, and better still, possibly lower than 0.8 ppm.
- the means 11A for receiving and distributing the liquid metal consists of a distributor 12 comprising a bowl and which bears on the central core 4.
- the essential is to achieve at least the formation of two successive streams of liquid metal, under vacuum, which can burst to ensure two successive degassing operations.
- FIG 3 another alternative embodiment is shown in which the mold 2 is surmounted by a receiving and distributing means 11 'of the jet 50 of liquid metal which is introduced into the vacuum casting chamber.
- This means 11 ' is constituted by a cone 110 bearing on the central core 4.
- the liquid metal which comes from the jet 50 flows on an area 51' which is on the outer periphery of the cone 110, then opens into the cavity of molding 3A forming jets 52 'which are exploded and which can ensure a very good degassing.
- the cone 110 of the liquid steel receiving and distributing means is shown, which is completed by a U-shaped jumper 111 which is intended to hold the cone 110.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Continuous Casting (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL09768538T PL2490842T3 (pl) | 2009-10-21 | 2009-10-21 | Sposób wytwarzania metalowego wlewka zawierającego otwór, odpowiedni wlewek i urządzenie do odlewania |
SI200930846T SI2490842T1 (sl) | 2009-10-21 | 2009-10-21 | Postopek izdelave kovinskega ingota, obsegajočega luknjo, tovrsten ingot in livarska priprava za izdelavo |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/FR2009/052014 WO2011048279A1 (fr) | 2009-10-21 | 2009-10-21 | Procede pour fabriquer un lingot metallique comportant un alesage, lingot et dispositif de moulage associes |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2490842A1 EP2490842A1 (fr) | 2012-08-29 |
EP2490842B1 true EP2490842B1 (fr) | 2013-12-11 |
Family
ID=42497515
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09768538.2A Active EP2490842B1 (fr) | 2009-10-21 | 2009-10-21 | Procede pour fabriquer un lingot metallique comportant un alesage, lingot et dispositif de moulage associes |
Country Status (13)
Country | Link |
---|---|
US (2) | US8875776B2 (zh) |
EP (1) | EP2490842B1 (zh) |
JP (1) | JP5552170B2 (zh) |
KR (1) | KR101443469B1 (zh) |
CN (1) | CN102655965B (zh) |
BR (1) | BR112012009542A2 (zh) |
CA (1) | CA2778193C (zh) |
ES (1) | ES2448547T3 (zh) |
PL (1) | PL2490842T3 (zh) |
RU (1) | RU2526649C2 (zh) |
SI (1) | SI2490842T1 (zh) |
UA (1) | UA104222C2 (zh) |
WO (1) | WO2011048279A1 (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2526649C2 (ru) * | 2009-10-21 | 2014-08-27 | Арселормитталь Инвестигасьон И Десарролло С.Л. | Способ изготовления металлического слитка, содержащего отверстие, соответствующие слиток и устройство литья |
CN104275450B (zh) * | 2014-10-11 | 2016-05-18 | 清华大学 | 一种底注式浇注铸锭的方法及专用装置 |
CN104785757B (zh) * | 2015-03-27 | 2016-11-30 | 辽宁科技大学 | 一种多芯还原多包共浇复合浇铸大型钢锭的方法及装置 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3310850A (en) | 1963-12-13 | 1967-03-28 | Rheinstahl Huettenwerke Ag | Method and apparatus for degassing and casting metals in a vacuum |
JPS5028898B1 (zh) * | 1970-01-20 | 1975-09-19 | ||
JPS5638295B2 (zh) * | 1974-05-01 | 1981-09-05 | ||
JPS54134034A (en) | 1978-04-11 | 1979-10-18 | Kawasaki Steel Co | Production of hollow steel block |
US4278124A (en) | 1978-04-11 | 1981-07-14 | Kawasaki Steel Corporation | Method of producing hollow steel ingot and apparatus therefor |
JPS54143703A (en) | 1978-04-28 | 1979-11-09 | Kobe Steel Ltd | Vacuum induction melting apparauts |
JPS5633164A (en) * | 1979-08-22 | 1981-04-03 | Mitsubishi Steel Mfg Co Ltd | Manufacture of steel ingot by remelting |
SU1088868A1 (ru) | 1983-02-14 | 1984-04-30 | Предприятие П/Я А-3681 | Способ получени полого слитка |
SU1359062A1 (ru) | 1986-05-05 | 1987-12-15 | Волгоградский Политехнический Институт | Устройство дл получени полых слитков |
US5052469A (en) * | 1988-09-20 | 1991-10-01 | Showa Denko Kabushiki Kaisha | Method for continuous casting of a hollow metallic ingot and apparatus therefor |
FR2676670B1 (fr) | 1991-05-23 | 1996-01-05 | Creusot Loire | Procede et dispositif de coulee d'un lingot creux metallique. |
FR2676671B1 (fr) | 1991-05-23 | 1994-01-14 | Creusot Loire Industrie | Procede et dispositif de coulee d'un lingot creux utilisant un noyau refroidi de maniere reglable. |
JPH05318027A (ja) | 1992-05-25 | 1993-12-03 | Kobe Steel Ltd | 鋳造方法 |
JPH06190538A (ja) * | 1992-12-24 | 1994-07-12 | Hitachi Ltd | 低水素鋼塊の製造方法 |
JP4427439B2 (ja) * | 2004-12-02 | 2010-03-10 | 株式会社神戸製鋼所 | 中空状の鍛造用鋼材の製法および筒状鍛造品の製法 |
JP4443430B2 (ja) * | 2005-01-25 | 2010-03-31 | 東邦チタニウム株式会社 | 電子ビーム溶解装置 |
RU2526649C2 (ru) * | 2009-10-21 | 2014-08-27 | Арселормитталь Инвестигасьон И Десарролло С.Л. | Способ изготовления металлического слитка, содержащего отверстие, соответствующие слиток и устройство литья |
-
2009
- 2009-10-21 RU RU2012120723/02A patent/RU2526649C2/ru active
- 2009-10-21 KR KR1020127012898A patent/KR101443469B1/ko active IP Right Grant
- 2009-10-21 JP JP2012534735A patent/JP5552170B2/ja not_active Expired - Fee Related
- 2009-10-21 ES ES09768538.2T patent/ES2448547T3/es active Active
- 2009-10-21 BR BR112012009542-0A patent/BR112012009542A2/pt active Search and Examination
- 2009-10-21 EP EP09768538.2A patent/EP2490842B1/fr active Active
- 2009-10-21 SI SI200930846T patent/SI2490842T1/sl unknown
- 2009-10-21 CN CN200980162469.2A patent/CN102655965B/zh not_active Expired - Fee Related
- 2009-10-21 CA CA2778193A patent/CA2778193C/fr not_active Expired - Fee Related
- 2009-10-21 US US13/503,115 patent/US8875776B2/en not_active Expired - Fee Related
- 2009-10-21 UA UAA201206016A patent/UA104222C2/ru unknown
- 2009-10-21 WO PCT/FR2009/052014 patent/WO2011048279A1/fr active Application Filing
- 2009-10-21 PL PL09768538T patent/PL2490842T3/pl unknown
-
2014
- 2014-09-29 US US14/500,018 patent/US9586258B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN102655965A (zh) | 2012-09-05 |
WO2011048279A1 (fr) | 2011-04-28 |
UA104222C2 (ru) | 2014-01-10 |
JP2013508162A (ja) | 2013-03-07 |
KR20120080637A (ko) | 2012-07-17 |
JP5552170B2 (ja) | 2014-07-16 |
RU2526649C2 (ru) | 2014-08-27 |
PL2490842T3 (pl) | 2014-05-30 |
US9586258B2 (en) | 2017-03-07 |
BR112012009542A2 (pt) | 2020-08-18 |
US8875776B2 (en) | 2014-11-04 |
KR101443469B1 (ko) | 2014-10-14 |
ES2448547T3 (es) | 2014-03-14 |
US20150013931A1 (en) | 2015-01-15 |
US20120269672A1 (en) | 2012-10-25 |
CA2778193A1 (fr) | 2011-04-28 |
EP2490842A1 (fr) | 2012-08-29 |
RU2012120723A (ru) | 2013-11-27 |
CA2778193C (fr) | 2014-10-14 |
SI2490842T1 (sl) | 2014-03-31 |
CN102655965B (zh) | 2016-02-24 |
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