[go: up one dir, main page]

US20180207719A1 - Electro-Slag Remelting Installation - Google Patents

Electro-Slag Remelting Installation Download PDF

Info

Publication number
US20180207719A1
US20180207719A1 US15/747,975 US201615747975A US2018207719A1 US 20180207719 A1 US20180207719 A1 US 20180207719A1 US 201615747975 A US201615747975 A US 201615747975A US 2018207719 A1 US2018207719 A1 US 2018207719A1
Authority
US
United States
Prior art keywords
consumable electrode
mold
electro
slag remelting
axis
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.)
Abandoned
Application number
US15/747,975
Inventor
Henrik Franz
Harald Scholz
Ulrich Biebricher
Thomas Kilzer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ALD Vacuum Technologies GmbH
Original Assignee
ALD Vacuum Technologies GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ALD Vacuum Technologies GmbH filed Critical ALD Vacuum Technologies GmbH
Assigned to ALD VACUUM TECHNOLOGIES GMBH reassignment ALD VACUUM TECHNOLOGIES GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SCHOLZ, HARALD, FRANZ, HENRIK, BIEBRICHER, ULRICH, KILZER, Thomas
Publication of US20180207719A1 publication Critical patent/US20180207719A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D23/00—Casting processes not provided for in groups B22D1/00 - B22D21/00
    • B22D23/06—Melting-down metal, e.g. metal particles, in the mould
    • B22D23/10—Electroslag casting
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/16—Remelting metals
    • C22B9/18—Electroslag remelting
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B7/00—Heating by electric discharge
    • H05B7/02—Details
    • H05B7/06—Electrodes
    • H05B7/07—Electrodes designed to melt in use

Definitions

  • the invention relates to an electro-slag remelting installation with a mold, which is open at the top, and at least one consumable electrode, which extends into the mold.
  • the end of the consumable electrode that extends into the mold is melted off.
  • the melted metal falls through a liquid slag above a molten material in the mold, wherein a chemical reaction of the metal with the slag removes these impurities, such as sulfur and other non-metallic elements, from the metal. Inclusions in the electrode are thus transferred to the slag and do not reach the block.
  • the temperature required to melt the consumable electrode is generated by a high-ampere electric current, which flows through the consumable electrode, the slag, and the molten material.
  • the slag thereby represents an electrical resistor, which heats up due to the current passing through.
  • the slag is thereby liquefied and heated.
  • the two electrical poles of the slag form, on the one hand, the block building up in the mold, and on the other hand, the electrode. Due to the heat generated in the slag, the electrode melts at the interface to the slag.
  • the higher the temperature of the slag the higher is the melting rate of the electrode.
  • limits are set for the temperature level of the slag. For that reason, the melting rate can only be increased by increasing the cross-sectional area while keeping the slag bath temperature constant.
  • the consumable electrode is a rod-shaped structure with a round or rectangular cross-section, whose axis has a vertical orientation.
  • the melting rate thereby depends on the cross-sectional area in relation to a plane perpendicular to the axis of the electrode.
  • the diameter of the mold and the diameter of the electrode had been increased to achieve higher melting rates.
  • the mold diameter also determines the size of the blocks that are produced from the solidified molten material.
  • so-called funnel molds are utilized. In the upper, funnel-shaped sections of the mold, there is immersed the consumable electrode, whose cross-section is larger than the cross-section of the lower, smaller section of the funnel mold, which holds the block.
  • the object of the invention consists of creating an electro-slag remelting installation, which has an increased melting rate despite a small given cross-section of the consumable electrode.
  • the invention provides that the consumable electrode is oriented obliquely to a vertical.
  • the end surface of the consumable electrode extending into the mold thereby runs, corresponding to its inclination, obliquely to the axis of the consumable electrode.
  • the effective consumable surface no longer corresponds to the cross-sectional area in relation to a plane perpendicular to the axis of the electrode, but in relation to a horizontal plane.
  • the effective consumable surface thus increases by the inverse of the cosine of the angle between the vertical and the axis of the obliquely positioned consumable electrode.
  • the electrode Since the electrode is arranged obliquely, the overall height of the installation is decreased or given the same overall height, longer consumable electrodes can be used.
  • the oblique arrangement enables one to have available one or more electrodes near the later melt-off position to thereby minimize the time delay when changing electrodes.
  • the angle between the axis of the consumable electrode and the vertical is between 20 and 60°; in particular, it is 450°.
  • the invention provides that the consumable electrode is held in a refeeding unit that is designed in such a manner that the consumable electrode can be displaced along its obliquely positioned axis.
  • Such a refeeding unit may have a roller bearing. In this way, the weight of the consumable electrode can be distributed over multiple rollers.
  • At least two consumable electrodes can also be provided here, which are each furnished with a refeeding unit. This allows for a rapid exchange of electrodes. An electrode is being melted off, while the other is being prepared in its displacement system and is displaced into a position above the mold as soon as the preceding one is consumed.
  • the mold is cooled so that the molten material solidifies in its lower region and can be removed as a billet from the open bottom of the mold.
  • a device is provided that extracts molten material, whose lower section has solidified into a billet, through the bottom of the mold.
  • a separating apparatus can still be provided, which is designed in such a manner that it can separate the end piece of the billet emerging from the bottom of the mold.
  • a deflection device may be provided, which diverts the separated end pieces laterally to the mold, e.g., on to a conveyor belt, into a warehouse or storage facility.
  • FIG. 1 is a side view of the arrangement
  • FIG. 2 is a top view.
  • the installation according to the invention consists of a mold 1 , which consists of a tube body 2 having the same cross-section and a funnel 3 connecting on the top. Plunging into it is a consumable electrode 4 , whose axis 5 is arranged obliquely to a vertical 6 , which simultaneously forms the axis of tube body 2 . Consumable electrode 4 is seated on rollers 7 , which form an oblique plane. Consumable electrode 4 is held by a refeeding unit 8 , by means of which it can be refed into funnel 3 of mold 1 commensurate to the melt-off.
  • the tube body 2 contains the molten material that forms and that solidifies due to the cooling, not depicted here, in the lower region into a billet 10 , which is removed downwardly by an apparatus not depicted here and which, if applicable, may be divided into individual blocks by a separating device also not depicted here. These are diverted by a deflection apparatus, which is also not depicted in greater detail, in a lateral direction via means, e.g., a conveyor belt, into a warehouse or storage facility (not depicted).
  • slag layer 11 with a horizontally running surface, which is contacted by consumable electrode 4 .
  • the melting rate level is determined by the size of the consumable surface 13 , which is the end surface of consumable electrode 4 contacting slag layer 11 .
  • Consumable surface 13 runs horizontally and thus, depending on the inclination of consumable electrode 4 , oblique to its axis 5 . Since consumable electrode 4 is positioned obliquely, consumable surface 13 increases in relation to cross-sectional area 12 of consumable electrode 4 by an amount that is determined by the size of angle ⁇ between axis 5 of consumable electrode 4 and vertical 6 . For an angle of 45°, end surface 13 increases by approx. 40% compared to cross-sectional area 12 .
  • funnel 3 has an oblique infeed edge 14 on the side of consumable electrode 4 .
  • the energy for consuming electrode 4 is obtained from a power supply not depicted here.
  • Consumable electrode 4 , slag layer 11 as well as molten material 9 and billet 10 form parts of a current circuit, wherein slag layer 11 represents the largest resistance so that most of the energy is absorbed there.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Furnace Details (AREA)

Abstract

An electro-slag remelting installation includes a mold and a consumable electrode that extends into the mold. The consumable electrode has an axis that is oriented obliquely to a vertical axis.

Description

  • This application claims the priority of International Application No. PCT/DE2016/100339, filed Jul. 26, 2016, and German Patent Application No. 10 2015 117 661.0, filed Oct. 16, 2015, and German Patent Application No. 10 2015 112 229.4, filed Jul. 27, 2015, the entire disclosures of which are herein expressly incorporated by reference.
    • BACKGROUND AND SUMMARY OF THE INVENTION
  • The invention relates to an electro-slag remelting installation with a mold, which is open at the top, and at least one consumable electrode, which extends into the mold.
  • Such an installation is described in DE 198 39 432 C2 for example.
  • To produce an ingot (block) out of impurities-free metal, the end of the consumable electrode that extends into the mold is melted off. The melted metal falls through a liquid slag above a molten material in the mold, wherein a chemical reaction of the metal with the slag removes these impurities, such as sulfur and other non-metallic elements, from the metal. Inclusions in the electrode are thus transferred to the slag and do not reach the block.
  • The temperature required to melt the consumable electrode is generated by a high-ampere electric current, which flows through the consumable electrode, the slag, and the molten material. The slag thereby represents an electrical resistor, which heats up due to the current passing through. The slag is thereby liquefied and heated. The two electrical poles of the slag form, on the one hand, the block building up in the mold, and on the other hand, the electrode. Due to the heat generated in the slag, the electrode melts at the interface to the slag.
  • The higher the temperature of the slag, the higher is the melting rate of the electrode. However, limits are set for the temperature level of the slag. For that reason, the melting rate can only be increased by increasing the cross-sectional area while keeping the slag bath temperature constant.
  • In the known design of such an installation, the consumable electrode is a rod-shaped structure with a round or rectangular cross-section, whose axis has a vertical orientation. The melting rate thereby depends on the cross-sectional area in relation to a plane perpendicular to the axis of the electrode. In the past, the diameter of the mold and the diameter of the electrode had been increased to achieve higher melting rates. However, the mold diameter also determines the size of the blocks that are produced from the solidified molten material. In order to also achieve a sufficiently high melting rate for small block sizes, so-called funnel molds (funnels) are utilized. In the upper, funnel-shaped sections of the mold, there is immersed the consumable electrode, whose cross-section is larger than the cross-section of the lower, smaller section of the funnel mold, which holds the block.
  • Therefore, the object of the invention consists of creating an electro-slag remelting installation, which has an increased melting rate despite a small given cross-section of the consumable electrode.
  • To solve the task, the invention provides that the consumable electrode is oriented obliquely to a vertical.
  • The end surface of the consumable electrode extending into the mold thereby runs, corresponding to its inclination, obliquely to the axis of the consumable electrode.
  • Therefore, the effective consumable surface no longer corresponds to the cross-sectional area in relation to a plane perpendicular to the axis of the electrode, but in relation to a horizontal plane. The effective consumable surface thus increases by the inverse of the cosine of the angle between the vertical and the axis of the obliquely positioned consumable electrode.
  • Besides increasing the consumable surface, this arrangement also has additional advantages.
  • In the past, to obtain larger consumable surfaces, a plurality of electrodes were welded together to obtain a thicker electrode. This step is now no longer necessary.
  • Since the electrode is arranged obliquely, the overall height of the installation is decreased or given the same overall height, longer consumable electrodes can be used.
  • The oblique arrangement enables one to have available one or more electrodes near the later melt-off position to thereby minimize the time delay when changing electrodes.
  • Preferably, the angle between the axis of the consumable electrode and the vertical is between 20 and 60°; in particular, it is 450°.
  • As the electrode undergoes melting loss, it must be re-fed. To this end, the invention provides that the consumable electrode is held in a refeeding unit that is designed in such a manner that the consumable electrode can be displaced along its obliquely positioned axis.
  • Such a refeeding unit may have a roller bearing. In this way, the weight of the consumable electrode can be distributed over multiple rollers.
  • As done in installations according to prior art, at least two consumable electrodes can also be provided here, which are each furnished with a refeeding unit. This allows for a rapid exchange of electrodes. An electrode is being melted off, while the other is being prepared in its displacement system and is displaced into a position above the mold as soon as the preceding one is consumed.
  • As mentioned above, the mold is cooled so that the molten material solidifies in its lower region and can be removed as a billet from the open bottom of the mold. To do so, a device is provided that extracts molten material, whose lower section has solidified into a billet, through the bottom of the mold.
  • If small-sized blocks are to be formed in this way, a separating apparatus can still be provided, which is designed in such a manner that it can separate the end piece of the billet emerging from the bottom of the mold. In addition, a deflection device may be provided, which diverts the separated end pieces laterally to the mold, e.g., on to a conveyor belt, into a warehouse or storage facility.
  • The invention is to be explained in greater detail below by means of an embodiment.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a side view of the arrangement; and
  • FIG. 2 is a top view.
    •  DETAILED DESCRIPTION OF THE DRAWINGS
  • The installation according to the invention consists of a mold 1, which consists of a tube body 2 having the same cross-section and a funnel 3 connecting on the top. Plunging into it is a consumable electrode 4, whose axis 5 is arranged obliquely to a vertical 6, which simultaneously forms the axis of tube body 2. Consumable electrode 4 is seated on rollers 7, which form an oblique plane. Consumable electrode 4 is held by a refeeding unit 8, by means of which it can be refed into funnel 3 of mold 1 commensurate to the melt-off.
  • The tube body 2 contains the molten material that forms and that solidifies due to the cooling, not depicted here, in the lower region into a billet 10, which is removed downwardly by an apparatus not depicted here and which, if applicable, may be divided into individual blocks by a separating device also not depicted here. These are diverted by a deflection apparatus, which is also not depicted in greater detail, in a lateral direction via means, e.g., a conveyor belt, into a warehouse or storage facility (not depicted).
  • Above molten material 9, there is within funnel 3 a slag layer 11 with a horizontally running surface, which is contacted by consumable electrode 4.
  • The melting rate level is determined by the size of the consumable surface 13, which is the end surface of consumable electrode 4 contacting slag layer 11. Consumable surface 13 runs horizontally and thus, depending on the inclination of consumable electrode 4, oblique to its axis 5. Since consumable electrode 4 is positioned obliquely, consumable surface 13 increases in relation to cross-sectional area 12 of consumable electrode 4 by an amount that is determined by the size of angle α between axis 5 of consumable electrode 4 and vertical 6. For an angle of 45°, end surface 13 increases by approx. 40% compared to cross-sectional area 12.
  • To allow for an oblique infeed of consumable electrode 4, funnel 3 has an oblique infeed edge 14 on the side of consumable electrode 4.
  • The energy for consuming electrode 4 is obtained from a power supply not depicted here. Consumable electrode 4, slag layer 11 as well as molten material 9 and billet 10 form parts of a current circuit, wherein slag layer 11 represents the largest resistance so that most of the energy is absorbed there.
    • LIST OF REFERENCE SIGNS
      • 1 Mold
      • 2 Tube body
      • 3 Funnel
      • 4 Consumable electrode
      • 5 Axis
      • 6 Vertical
      • 7 Rollers
      • 8 Refeeding unit
      • 9 Molten material
      • 10 Billet
      • 11 Slag layer
      • 12 Cross-sectional area
      • 13 End surface
      • 14 Infeed edge

Claims (10)

1.-9. (canceled)
10. An electro-slag remelting installation, comprising:
a mold, wherein the mold is open on a top of the mold; and
a consumable electrode, wherein the consumable electrode extends into the mold and wherein the consumable electrode has an axis that is oriented obliquely to a vertical axis.
11. The electro-slag remelting installation according to claim 10, wherein an end surface of the consumable electrode that extends into the mold runs obliquely to the axis of the consumable electrode.
12. The electro-slag remelting installation according to claim 10, wherein an angle between the axis of the consumable electrode and the vertical axis is between 20° and 60°.
13. The electro-slag remelting installation according to claim 10 further comprising a refeeding unit, wherein the consumable electrode is held in the refeeding unit such that the consumable electrode is displaceable along the axis of the consumable electrode.
14. The electro-slag remelting installation according to claim 13 further comprising a second consumable electrode and a second refeeding unit, wherein the second consumable electrode is held in the second refeeding unit such that the second consumable electrode is displaceable along an axis of the second consumable electrode.
15. The electro-slag remelting installation according to claim 13 further comprising a displacement system, wherein the refeeding unit with the consumable electrode is movable over the mold by the displacement system.
16. The electro-slag remelting installation according to claim 10 further comprising a device that removes molten material, which has solidified into a billet in a bottom section of the mold, through a bottom of the mold.
17. The electro-slag remelting installation according to claim 16 further comprising a separation apparatus that separates an end piece of the billet emerging from the bottom of the mold.
18. The electro-slag remelting installation according to claim 17 further comprising a deflection apparatus that diverts the separated end piece in a lateral direction with respect to the mold.
US15/747,975 2015-07-27 2016-07-26 Electro-Slag Remelting Installation Abandoned US20180207719A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE102015112229 2015-07-27
DE102015112229.4 2015-07-27
DE102015117661.0 2015-10-16
DE102015117661.0A DE102015117661A1 (en) 2015-07-27 2015-10-16 Electroslag remelting
PCT/DE2016/100339 WO2017016549A1 (en) 2015-07-27 2016-07-26 Electro-slag remelting installation

Publications (1)

Publication Number Publication Date
US20180207719A1 true US20180207719A1 (en) 2018-07-26

Family

ID=57795326

Family Applications (1)

Application Number Title Priority Date Filing Date
US15/747,975 Abandoned US20180207719A1 (en) 2015-07-27 2016-07-26 Electro-Slag Remelting Installation

Country Status (8)

Country Link
US (1) US20180207719A1 (en)
EP (1) EP3328576B1 (en)
JP (1) JP2018522739A (en)
CN (1) CN108136493A (en)
DE (1) DE102015117661A1 (en)
RU (1) RU2689832C1 (en)
SI (1) SI3328576T1 (en)
WO (1) WO2017016549A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220051868A (en) 2020-10-19 2022-04-27 삼성전자주식회사 Method and computing device for manufacturing semiconductor device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US403326A (en) * 1889-05-14 Thomas j
US3677323A (en) * 1968-11-22 1972-07-18 Rheinstahl Huettenwerke Ag Process and apparatus for providing steel ingot
US3952792A (en) * 1974-07-25 1976-04-27 Consarc Corporation Method and apparatus for casting a plurality of ingots
JPS6442531A (en) * 1987-08-07 1989-02-14 Nippon Kokan Kk Arc melting apparatus
US8689856B1 (en) * 2013-03-05 2014-04-08 Rti International Metals, Inc. Method of making long ingots (cutting in furnace)

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE572870C (en) * 1926-02-10 1933-03-24 William E Moore Process for treating iron which, in the molten state, drips through a layer of red-hot material
US3200232A (en) * 1963-06-11 1965-08-10 Soudure Electr Autogene Sa Process and apparatus for electric fusion welding
AT280505B (en) * 1967-12-27 1970-04-10 Boehler & Co Ag Geb Electrode holders in installations for electrical remelting of metals, in particular steels
SU403326A1 (en) * 1971-01-04 1980-05-25 Институт электросварки им. Е.О.Патона Device for electroslag smelting of ingots
DE2319983B2 (en) * 1973-04-19 1975-11-06 Institut Elektroswarki Imeni E.O. Patona Akademii Nauk, Ukrainskoj Ssr, Kiew (Sowjetunion) Process for the production of metallic ring parts according to the electroslag remelting process
JPS5039601B2 (en) * 1973-05-11 1975-12-18
GB1469850A (en) * 1974-12-30 1977-04-06 Inst Elektroswarki Patona Machine for electroslag refining and production of curved ingots
JPS53130231A (en) * 1977-04-21 1978-11-14 Mitsubishi Heavy Ind Ltd Manufacturing apparatus for curved tube with straight tube portion by continuous electroslag melting
DE2950531A1 (en) * 1979-12-15 1981-06-19 Leybold-Heraeus GmbH, 5000 Köln Electrode clamping device for electro-remelting plant - has independent adjustment drives for orienting electrode with respect to carrier
ATA814479A (en) * 1979-02-15 1995-01-15 Leybold Heraeus Gmbh & Co Kg ELECTRODE CLAMPING DEVICE FOR ELECTRODE REEL MELTING PLANTS
AT367668B (en) * 1979-07-26 1982-07-26 Sp Pk I T Bjuro Elektrotermich ELECTRIC SLAG MELTING SYSTEM
JPS6320151A (en) * 1986-07-14 1988-01-27 Daido Steel Co Ltd Ingot cutting support device in electroslag remelting furnace
CN2213593Y (en) * 1994-12-28 1995-11-29 机械工业部沈阳铸造研究所 Founding device of thin-wall variable camber blade slab electroslag
AT406384B (en) * 1996-01-29 2000-04-25 Inteco Int Techn Beratung METHOD FOR ELECTROSHELL STRAND MELTING OF METALS
DE19839432C2 (en) 1998-08-29 2000-12-07 Ald Vacuum Techn Ag Electric melting system
JP4654850B2 (en) * 2005-09-09 2011-03-23 大同特殊鋼株式会社 Attaching the stub to the electrode used in the remelting furnace
JP4535097B2 (en) * 2007-08-16 2010-09-01 大同特殊鋼株式会社 Power supply device for consumable electrode melting furnace

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US403326A (en) * 1889-05-14 Thomas j
US3677323A (en) * 1968-11-22 1972-07-18 Rheinstahl Huettenwerke Ag Process and apparatus for providing steel ingot
US3952792A (en) * 1974-07-25 1976-04-27 Consarc Corporation Method and apparatus for casting a plurality of ingots
JPS6442531A (en) * 1987-08-07 1989-02-14 Nippon Kokan Kk Arc melting apparatus
US8689856B1 (en) * 2013-03-05 2014-04-08 Rti International Metals, Inc. Method of making long ingots (cutting in furnace)

Also Published As

Publication number Publication date
DE102015117661A1 (en) 2017-02-02
EP3328576B1 (en) 2019-07-17
CN108136493A (en) 2018-06-08
RU2689832C1 (en) 2019-05-29
EP3328576A1 (en) 2018-06-06
SI3328576T1 (en) 2019-11-29
JP2018522739A (en) 2018-08-16
WO2017016549A1 (en) 2017-02-02

Similar Documents

Publication Publication Date Title
JP5918572B2 (en) Continuous casting apparatus and continuous casting method for titanium ingot and titanium alloy ingot
FI91477B (en) A method for melting and / or purifying metals and a cooling device for a graphite electrode used herein
JP6086439B2 (en) Electrode for redissolving electroslag and method for manufacturing high nitrogen-containing steel
KR101578589B1 (en) Non-electroslag re-melting type clean metal ingot mold
US20180207719A1 (en) Electro-Slag Remelting Installation
US4207454A (en) Method for electroslag welding of metals
CN204474735U (en) A kind of anti-sparking crystallizer
CN109022858A (en) A kind of aluminum melting process
ES2206916T3 (en) ELECTROESCORY COATING PROCEDURE.
US9156081B2 (en) Mold for continuous casting of titanium or titanium alloy ingot, and continuous casting device provided with same
US4167963A (en) Method and apparatus for feeding molten metal to an ingot during solidification
CN201799581U (en) Non-electroslag remelting type clean metal ingot mould
JP5267315B2 (en) Tundish for continuous casting and continuous casting method
US20150101776A1 (en) System and method of forming a solid casting
JP4678592B2 (en) Continuous casting equipment
JP6565516B2 (en) Casting equipment
JPH0347952B2 (en)
RU2497959C1 (en) Electroslag remelting method, and device for its implementation
US3654373A (en) Apparatus for initiating the heat generation phase of an electroslag refining process
JP2020079439A (en) Treatment method of metal-containing material in melting furnace and its facility
WO2001081639A1 (en) Consumable electrode continuous feed system and method in electroslag refining
CN102605189A (en) Method for preparing copper and copper-alloy cast ingots by electroslag refining technology
CN101982256A (en) Clean metal ingot mould
JP4419811B2 (en) Continuous casting method for molten steel
KR20130041927A (en) Molten supply system for strip casting

Legal Events

Date Code Title Description
AS Assignment

Owner name: ALD VACUUM TECHNOLOGIES GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:FRANZ, HENRIK;SCHOLZ, HARALD;BIEBRICHER, ULRICH;AND OTHERS;SIGNING DATES FROM 20180125 TO 20180207;REEL/FRAME:045353/0497

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STPP Information on status: patent application and granting procedure in general

Free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER

STPP Information on status: patent application and granting procedure in general

Free format text: FINAL REJECTION MAILED

STPP Information on status: patent application and granting procedure in general

Free format text: RESPONSE AFTER FINAL ACTION FORWARDED TO EXAMINER

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STPP Information on status: patent application and granting procedure in general

Free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER

STPP Information on status: patent application and granting procedure in general

Free format text: FINAL REJECTION MAILED

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION