公开(公告)号：EP3268149A1

公开(公告)日：2018-01-17

申请号：EP17727527.8

申请日：2017-05-23

申请人： Ald Vacuum Technologies GmbH

发明人： FRANZ, Henrik ,  BIEBRICHER, Ulrich ,  SCHOLZ, Harald

IPC分类号： B22D2/00 ,  B22D11/18 ,  B22D23/10 ,  C22B9/18 ,  B22D11/20 ,  G01K13/02

CPC分类号： C22B9/18 ,  B22D2/006 ,  B22D11/182 ,  B22D11/202 ,  B22D23/10 ,  G01K13/02

摘要： Disclosed are a melting vessel for carrying out an electroslag melting process as well as a process of said type. According to the invention, measuring devices that measure a temperature at different heights make it possible to draw conclusions about the position and height of a slag zone in the melting vessel during the process.

公开(公告)号：EP2980233A4

公开(公告)日：2017-03-29

申请号：EP14773993

申请日：2014-03-20

申请人： HITACHI METALS LTD

发明人： HADANO YUUICHI ,  KAMIMURA TAKAHIKO

IPC分类号： B22D27/00 ,  B22D9/00 ,  B22D23/10 ,  C21C7/06 ,  C21C7/10 ,  C21D6/00 ,  C22B9/20 ,  C22C33/04 ,  C22C38/00 ,  C22C38/06 ,  C22C38/10 ,  C22C38/12 ,  C22C38/14

CPC分类号： C22C38/00 ,  B22D9/003 ,  B22D23/10 ,  B22D27/003 ,  C21C7/06 ,  C21C7/10 ,  C21D6/001 ,  C22B9/20 ,  C22C33/04 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/06 ,  C22C38/105 ,  C22C38/12 ,  C22C38/14

摘要： Provided is a method of producing maraging steel and a method of making Ti-based inclusions finer and making the sizes of Ti-based inclusions that may differ at different locations in the steel ingot more uniform. A method of producing a maraging steel by using vacuum arc remelting that uses a vacuum arc remelting apparatus at least includes a steel ingot production step of producing a steel ingot by melting a consumable electrode made of maraging steel in a crucible of the apparatus, and in this method, the steel ingot production step includes cooling the steel ingot with rare gas introduced between the steel ingot and the crucible.

公开(公告)号：EP2944397A1

公开(公告)日：2015-11-18

申请号：EP14738198.2

申请日：2014-01-10

申请人： Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

发明人： KUROSAWA Eisuke ,  NAKAOKA Takehiro ,  TSUTSUMI Kazuyuki ,  OYAMA Hideto ,  KANAHASHI Hidetaka ,  ISHIDA Hitoshi ,  TAKAHASHI Daiki ,  MATSUWAKA Daisuke

IPC分类号： B22D11/00 ,  B22D11/041 ,  B22D11/055

CPC分类号： B22D11/001 ,  B22D11/041 ,  B22D11/055 ,  B22D11/117 ,  B22D11/188 ,  B22D11/207 ,  B22D11/22 ,  B22D21/022 ,  B22D23/10 ,  F27D2099/0031

摘要： By controlling the temperature (Ts) of a surface portion (11a) of an ingot (11) in a contact region (16) between a mold (2) and the ingot (11) and/or a passing heat flux (q) from the surface portion (11a) of the ingot (11) to the mold (2) in the contact region (16), the thickness (D) in the contact region (16) of a solidified shell (13) obtained by the solidification of molten metal (12) is brought into a predetermined range. Consequently, an ingot having a good casting surface state can be cast.

摘要翻译： 通过控制模具（2）和锭（11）之间的接触区域（16）中的锭（11）的表面部分（11a）和/或通过热通量（q）的温度（Ts） 在接触区域（16）中铸块（11）的表面部分（11）到模具（2）的表面部分（11a），固化壳体（13）的接触区域（16）中的厚度（D） 熔融金属（12）进入预定范围。 因此，可以铸造具有良好铸造表面状态的铸块。

公开(公告)号：EP2224023B1

公开(公告)日：2013-10-02

申请号：EP08861690.9

申请日：2008-12-18

申请人： The Japan Steel Works, Ltd.

发明人： Yamada, Hitohisa ,  Mizusawa, Mamoru ,  Tanaka, Shinji

IPC分类号： C22B9/18 ,  B22D23/10 ,  C22B15/14

CPC分类号： B22D23/10 ,  C22B9/10 ,  C22B9/18 ,  C22B15/006

公开(公告)号：EP1925681A3

公开(公告)日：2009-03-11

申请号：EP07021759.1

申请日：2007-11-09

申请人： Inteco special melting technologies GmbH

发明人： Holzgruber, Wolfgang ,  Holzgruber, Harald

IPC分类号： C22B9/18 ,  B22D23/10

CPC分类号： B22D23/10 ,  C22B9/18

摘要： Durch die Erfindung werden ein Verfahren und eine für dessen Durchführung geeignete Kokille (10), vorgestellt, durch welche die Wärmeverluste eines Schlackenbads (8) reduziert werden können. Dabei erfolgt das Umschmelzen in einer kurzen, zweiteiligen Gleitkokille (10), deren unterer , den Giessquerschnitt formender Teil (12) wassergekühlt und deren oberer Teil (20) gegen Wärmeabfuhr ganz oder teilweise isoliert ist. Während des regulären Blockaufbaus wird der Metallspiegel (5) durch eine entsprechende Steuerung der Relativbewegung zwischen Kokille (10) und Umschmelzblock (6) immer so im unteren, wassergekühlten Teil (12) der Kokille (10) -- also unterhalb der Trennungslinie (18) zwischen wassergekühltem Teil (12) und isoliertem Teil (20) derselben -- gehalten, dass der Abstand zwischen der Oberfläche des Metallspiegels (5) einerseits sowie der durch die Trennungslinie (18) zwischen gekühltem Teil (12) und isoliertem Teil (20) bestimmten Ebenen andererseits mindestens 5 mm beträgt, höchstens jedoch 100 mm. Das auf dem Metallspiegel (5) schwimmende Schlackenbad (8) befindet sich zumindest zu 75 % seiner Höhe (h) im Bereich jenes isolierten oberen Kokillenteils (20). Der gegen Wärmeabfuhr isolierte obere Teil (20), der Gleitkokille (10) ist mehrschichtig aufgebaut.
Zwischen einer die äußere Schicht darstellenden wassergekühlten Stützkonstruktion (22) und einer inneren, mit dem Schlackenbad (8) in Berührung stehenden und hoch temperaturbeständigen Schicht (26) ist eine wärmeisolierende Zwischenschicht (28) angeordnet.

公开(公告)号：EP1339885B1

公开(公告)日：2008-03-19

申请号：EP01993711.9

申请日：2001-11-09

申请人： Inteco Internationale Technische Beratung Gesellschaft mbH

发明人： HOLZGRUBER, Wolfgang ,  HOLZGRUBER, Harald ,  MEDOVAR, Lev ,  LANTSMAN, Izrail

IPC分类号： C22B9/18 ,  C22B9/187

CPC分类号： C22B9/18 ,  B22D23/10

摘要： The invention relates to a method for producing metal blocks or bars, especially from steels and Ni- and Co-base alloys, by melting off consumable electrodes in an electroconductive slag bath using alternating or direct current in a short, downwardly opening, water-cooled mould through which a current contact can be established with the slag bath. The melting current is introduced into the slag bath through the consumable electrode and through the mould in a controlled manner in terms of regulating the distribution of the current between the electrode and the mould; and is conducted back through the mould and the block and the base plate at option; the division of the currents being adjustable in a controlled manner. The proportion of the overall melting current delivered that is delivered via the consumable electrode can be chosen from between 0 and 100 %. A device for carrying out the inventive method has a short, water-cooled mould comprising a base plate and at least one current-conducting element provided in the area of the slag bath, this element being insulated in relation to the lower area of the mould which forms the remelting block; or from other current-conducting elements. The supply of the melting current from at least one current source to the consumable electrode and to at least one current-conducting element can be specifically adjusted either separately or jointly by means of a suitable arrangement. The return to the at least one current source from at least one current-conducting element of the mould and the base plate which supports the remelting block can be specifically adjusted either separately or jointly.

公开(公告)号：EP1257675B1

公开(公告)日：2005-04-27

申请号：EP00942005.0

申请日：2000-05-31

申请人： Inteco Internationale Technische Beratung Gesellschaft mbH

发明人： HOLZGRUBER, Harald ,  HOLZGRUBER, Wolfgang

IPC分类号： C22B9/18 ,  B22D23/10 ,  B22D11/00

CPC分类号： C22B9/18 ,  B22D11/006 ,  B22D23/10

摘要： The invention relates to a method for producing hollow moulded bodies (48) from metal - especially from steels and Ni and Co base alloys according to an electroslag melting or casting method - using a short, electroconductive, water-cooled chill mould (10) that, together with a mandrel (14) which is arranged within the opening (11) of the chill mould and is also water-cooled, forms a casting or annual gap (18) for the hollow moulded body (48). The metal level is covered by means of an electroconductive slag bath (44) which is heated by supplying direct current or alternating current to the slag bath (18) by means of not directly water-cooled, electroconductive elements (24, 26) which are inserted into the wall of the chill mould (10) and/or the water-cooled mandrel (14) and by subsequently removing said current by means of such elements of the respective other component and/or the formed moulded body (48). At least one of said electroconductive elements (24, 26) is electrically insulated from the remaining components of the water-cooled chill mould (10) or the mandrel (14). The hollow moulded body (48) that is produced in the annular gap (18) and between the chill mould (10) and the mandrel (14) is drawn off towards the bottom or the chill mould (10), together with the mandrel (14), is lifted at the climbing speed of the metal level, whereby the moulded body (48) is stationary.

公开(公告)号：EP1136576B1

公开(公告)日：2004-12-29

申请号：EP00302292.8

申请日：2000-03-21

申请人： GENERAL ELECTRIC COMPANY

发明人： Carter, William Thomas jr. ,  Benz, Mark Gilbert ,  Muller, Felix Guenter ,  Hugo, Franz W. ,  Zabala, Robert John ,  Knudsen, Bruce Alan

IPC分类号： C22B9/18 ,  B22D23/10

CPC分类号： C22B9/18 ,  B22D23/10

公开(公告)号：EP1276914A1

公开(公告)日：2003-01-22

申请号：EP00923521.9

申请日：2000-04-19

申请人： GENERAL ELECTRIC COMPANY

发明人： KNUDSEN, Bruce, Alan ,  ZABALA, Robert, John ,  BENZ, Mark, Gilbert ,  CARTER, William, Thomas, Jr.

IPC分类号： C22B9/18 ,  B22D23/10 ,  H05B7/109

CPC分类号： H05B7/109 ,  B22D23/10 ,  C22B9/18

摘要： A consumable electrode feed system for a refining system provides consumable electrodes to an electroslag refining system in a continuous manner. The consumable electrode feed system comprises a side feed device that feeds consumable electrodes to a refining system in a first direction; a refining feed device that feeds consumable electrodes to a refining system in a second direction, in which the second direction being generally orthogonal to the first direction; and a weld or fusion connection system for connecting fed consumable electrodes to each other. The consumable electrode feed system allows for a predetermined amount of a consumable electrode to be refined in the refining system, and can position another consumable electrode above a previously fed consumable electrode. The connecting system that can connect a fed consumable electrode to a previously fed consumable electrode thus avoiding interruption or stoppage of refining operation.

公开(公告)号：EP1259347A1

公开(公告)日：2002-11-27

申请号：EP00919899.5

申请日：2000-03-29

申请人： GENERAL ELECTRIC COMPANY

发明人： BENZ, Mark, Gilbert ,  CARTER, William, Thomas, Jr. ,  ZABALA, Robert, John ,  KNUDSEN, Bruce, Alan

IPC分类号： B22F3/115 ,  B22F9/08 ,  B22D23/10

CPC分类号： B22F3/115 ,  B22D23/10 ,  B22F2009/0852 ,  B22F2009/0856 ,  B22F2998/00 ,  C22B9/18 ,  C23C4/123 ,  B22F5/009

摘要： Casting systems and methods form a hollows metal casting, in which the hollows metal casting comprises a fine-grain, homogeneous microstructure. The microstructure is essentially oxide- and sulfide-free, segregation defect free, and essentially free of voids caused by air entrapped during solidification of the metal from a liquidus state to a solid state. The casting system (3) with for forming hollows castings comprises an electroslag refining system; a nucleated casting system (2) in which a casting is solidified; and a cooled mandrel (205) disposed at least in a liquidus portion (148) of the casting (145) in the nucleated casting system. The liquidus portion of the metal casting is solidified around the cooled mandrel in a manner sufficient to form a hollows casting with microstructure that comprises a fine-grain, homogeneous microstructure that is essentially oxide- and sulfide-free, segregation defect free, and essentially free of voids caused by air entrapped during solidification from a liquidus state to a solid state.