DE3609329A1 - Apparatus for pushing on the last ingots through an ingot-heating plant - Google Patents

Apparatus for pushing on the last ingots through an ingot-heating plant

Info

Publication number
DE3609329A1
DE3609329A1 DE19863609329 DE3609329A DE3609329A1 DE 3609329 A1 DE3609329 A1 DE 3609329A1 DE 19863609329 DE19863609329 DE 19863609329 DE 3609329 A DE3609329 A DE 3609329A DE 3609329 A1 DE3609329 A1 DE 3609329A1
Authority
DE
Germany
Prior art keywords
ingots
ingot
last
cylinder
heating plant
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.)
Withdrawn
Application number
DE19863609329
Other languages
German (de)
Inventor
Norbert Dipl Ing Grulke
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.)
ABB AG Germany
Original Assignee
Brown Boveri und Cie AG Germany
BBC Brown Boveri AG Germany
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 Brown Boveri und Cie AG Germany, BBC Brown Boveri AG Germany filed Critical Brown Boveri und Cie AG Germany
Priority to DE19863609329 priority Critical patent/DE3609329A1/en
Publication of DE3609329A1 publication Critical patent/DE3609329A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/04—Ram or pusher apparatus
    • 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
    • C21D1/34—Methods of heating
    • C21D1/42—Induction heating
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0006—Details, accessories not peculiar to any of the following furnaces
    • C21D9/0018—Details, accessories not peculiar to any of the following furnaces for charging, discharging or manipulation of charge
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/0024—Charging; Discharging; Manipulation of charge of metallic workpieces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0001—Positioning the charge
    • F27D2003/0002—Positioning the charge involving positioning devices, e.g. buffers, buffer zones
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
    • F27D2003/0038—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising shakers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
    • F27D2003/0042—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising roller trains
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
    • F27D2003/0078—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising jacks, e.g. hydraulic jacks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
    • F27D2003/008—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising cross-beams or gantry cranes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0085—Movement of the container or support of the charge in the furnace or in the charging facilities
    • F27D2003/0093—Movement on a slope
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D9/00—Cooling of furnaces or of charges therein
    • F27D2009/0002—Cooling of furnaces
    • F27D2009/001—Cooling of furnaces the cooling medium being a fluid other than a gas
    • F27D2009/0013—Cooling of furnaces the cooling medium being a fluid other than a gas the fluid being water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D21/00—Arrangement of monitoring devices; Arrangement of safety devices
    • F27D21/0035—Devices for monitoring the weight of quantities added to the charge
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • General Induction Heating (AREA)

Abstract

Apparatus for pushing on the last ingots, at the end of a batch or the like, through an ingot-heating plant in which the ingots delivered are seized by an ingot drive mechanism and the ingots lying one behind the other are continuously pushed through the ingot-heating plant. The ingot-heating plant for the most part consists of induction coils arranged one behind the other. The ingots delivered are seized by two friction rollers and pushed through the induction coil. It is difficult to push the last ingots through the heating plant at the end of a batch. An apparatus for pushing on the last ingots, which is suitable both for small and for large plants and in which continuous advance of the last ingots through the ingot-heating plant is also possible, is made possible by the fact that a water-cooled multiple cylinder adapted to the length of the ingot-heating plant contains, internally, a telescopic cylinder which moves out the outer water-cooled cylinder synchronously with the set advancing speed. This multiple cylinder is advantageously arranged above the charging channel and automatically swings into the charging channel in the absence of ingots. In this case, the cylinder advance is expediently set to the ingot advance, so that the same advancing speed is obtained as with the friction roller drive. It is then possible to continue heating during the empty running of the plant, so that the last ingots also... Original abstract incomplete. <IMAGE>

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Wei­ terschub der letzten Blöcke bei Ende einer Charge oder dergleichen durch eine Blockerwärmungsanlage, bei der die angelieferten Blöcke von einem Blockantrieb erfaßt und die hintereinanderliegenden Blöcke kontinuierlich durch die Blockerwärmungsanlage geschoben werden. Die Blockerwärmungsanlage besteht meist aus mehreren hinter­ einanderangeordneten Induktionsspulen.The invention relates to a device for Wei last blocks at the end of a batch or the like by a block heating system, in which the blocks delivered by a block drive and the blocks in series continuously be pushed through the block heating system. The Block heating system usually consists of several behind mutually arranged induction coils.

Derartige Anlagen sind bekannt. Die angelieferten Blöcke werden von zwei Reibrollen erfaßt und durch die Indukti­ onsspule geschoben. Durch die hintereinander in der Blocktransportbahn liegenden Blöcke wird jeder Block kontinuierlich durch alle Spulen hindurchgeschoben. Es ist jedoch schwierig, bei Ende einer Charge die letzten Blöcke noch durch die Erwärmungsanlage zu schieben. Bei kleinen Anlagen hat man versucht, die Blöcke mittels Holzstangen aus der Anlage zu stoßen und bei größeren Anlagen, die Blöcke mittels geschlitzter Vierkantrohre oder einer Schiebekette hinauszuschieben. Es hat sich jedoch gezeigt, daß diese Verfahren zu arbeitsaufwendig sind und einen automatischen Arbeitsauflauf behindern.Such systems are known. The delivered blocks are gripped by two friction rollers and by the Indukti on spool pushed. Through the one after the other in the Block conveyor blocks lying each block continuously pushed through all coils. It is difficult, however, at the end of a batch the last Blocks still to be pushed through the heating system. At Small plants have been tried to use the blocks To push wooden poles out of the plant and for larger ones Systems that block by means of slotted square tubes  or a sliding chain. It has however, these procedures have shown to be labor intensive are and hinder an automatic work flow.

Aufgabe der vorliegenden Erfindung ist es, eine Vorrich­ tung zum Weiterschub der letzten Blöcke zu schaffen, die sich sowohl für kleine als auch für große Anlagen eignet und bei der auch ein kontinuierlicher Vorschub der letz­ ten Blöcke durch die Blockerwärmungsanlage möglich ist.The object of the present invention is a Vorrich to move the last blocks to create the is suitable for both small and large systems and where there is also a continuous feed of the last blocks by the block heating system is possible.

Gemäß der vorliegenden Erfindung wird dies dadurch er­ reicht, daß ein der Länge der Blockerwärmungsanlage an­ gepaßter wassergekühlter Mehrfachzylinder innen einen Teleskopzylinder enthält, der den äußeren wassergekühl­ ten Zylinder synchron zur eingestellten Vorschubge­ schwindigkeit ausfährt. Dieser Mehrfachzylinder ist vor­ teilhaft oberhalb der Beschickungsrinne angeordnet und schwenkt automatisch bei Blockmangel in die Be­ schickungsrinne ein. Hierbei wird zweckmäßig der Zylin­ dervorschub auf den Blockvorschub eingeregelt, so daß die gleiche Vorschubgeschwindigkeit erreicht wird, wie bei dem Reibrollenantrieb. Es kann dann während des Leerfahrens der Anlage weitergeheizt werden, so daß auch die letzten Blöcke richtig erwärmt sind und verschmiedet werden können.According to the present invention, it will is enough for the length of the block heating system fitted water-cooled multiple cylinder inside one Telescopic cylinder contains the outer water-cooled cylinder synchronized with the set feed rate dizziness. This multiple cylinder is in front partially arranged above the feed trough and automatically swings into the loading area in the event of a block shortage shipping channel. Here, the Zylin is appropriate the feed adjusted to the block feed so that the same feed rate is achieved as with the friction roller drive. It can then be used during the Empty the system be further heated, so that too the last blocks are properly warmed and forged can be.

Die Figuren zeigen ein Ausführungsbeispiel der Erfin­ dung. In Fig. 1 ist der Mehrfachzylinder und in Fig. 2 die Anwendung der Erfindung bei einer induktiven Blockerwärmungsanlage dargestellt.The figures show an embodiment of the inven tion. In Fig. 1 the multiple cylinder and in Fig. 2 the application of the invention is shown in an inductive block heating system.

Wie Fig. 2 zu entnehmen ist, werden die kalten Blöcke 1 über eine Zuführeinrichtung 2, in diesem Fall über eine Rollbahn bereitgestellt. Der Ausgang der Rollbahn kann mittels eines Schiebers 3 abgesperrt werden, so daß kei­ ne weiteren Blöcke mehr auf die Schwingrinne 4 gelangen können die die Blöcke dem Blockantrieb 5 zuführt. Der Blockantrieb 5 besteht aus zwei Reibrollen 6. Diese Reibrollen 6 sind derart angeordnet, daß sie eine be­ stimmte Preßkraft auf die Blöcke ausüben können, so daß eine Weiterbewegung gesichert ist. Unmittelbar hinter dem Blockantrieb 5 sind die Induktionsspulen 8 der Blockerwärmungsanlage angeordnet.As can be seen from FIG. 2, the cold blocks 1 are provided via a feed device 2 , in this case via a runway. The exit of the runway can be shut off by means of a slide 3 , so that no more blocks can get to the vibrating trough 4 which feeds the blocks to the block drive 5 . The block drive 5 consists of two friction rollers 6 . These friction rollers 6 are arranged such that they can exert a certain pressing force on the blocks, so that further movement is ensured. Immediately behind the block drive 5 are the induction coils 8 of the block heating system.

Über dem Blockantrieb 5 befindet sich eine Überwachungs­ einrichtung 11, die mit ihrem Rad 12 auf den Blöcken 1 aufliegt. Hierdurch wird ein von der Bewegungsgeschwin­ digkeit abhängiges Signal erzeugt. Falls dieses Signal von dem vorgegebenen Wert abweicht, wird nachgeregelt, so daß der kontinuierliche Transport bis zum letzten Block sichergestellt ist. Unmittelbar vor dem Blockan­ trieb 5 kann der Mehrfachzylinder 13 oberhalb der Trans­ portbahn angeordnet sein. Wenn der letzte Block den Schwingförderer 4 verlassen hat, schwenkt der Mehrfach­ zylinder 13 automatisch in die gestrichelte Lage 13′. Der Teleskopzylinder wird mit Druck beaufschlagt und der Mehrfachzylinder 13 wird ausgefahren. Wird das Rad 12 der Überwachungseinrichtung 11 von dem Zylinder mitange­ trieben, so kann die Weiterbewegung von der Einrichtung 11 überwacht werden. Sobald der letzte Block die aus den verschiedenen Induktionsspulen 8 bestehende Blockerwär­ mungsanlage verlassen hat, kann der Mehrfachzylinder zurückgezogen werden und aus seiner Lage 13′ in seine Ruhelage zurückgeschwenkt werden.Above the block drive 5 there is a monitoring device 11 which rests with its wheel 12 on the blocks 1 . This generates a signal that is dependent on the speed of movement. If this signal deviates from the specified value, readjustment is carried out so that continuous transport to the last block is ensured. Immediately in front of the block drive 5 , the multiple cylinder 13 can be arranged above the trans port track. When the last block has left the vibratory conveyor 4 , the multiple cylinder 13 automatically swings into the dashed position 13 '. The telescopic cylinder is pressurized and the multiple cylinder 13 is extended. When the wheel 12 of the monitoring device 11 from the cylinder mitange exaggerated, so that further movement can be monitored by the device. 11 As soon as the last block has left the existing heating system from the various induction coils 8 , the multiple cylinder can be withdrawn and pivoted back out of its position 13 'into its rest position.

Fig. 1 zeigt den Mehrfachzylinder im Schnitt. Der inne­ re Teleskopzylinder 20 wird über die Leitung 21 mit Druck beaufschlagt und bewegt sein Ende 22 in Richtung des Pfeils 23. Wenn die Blockerwärmungsanlage leergefah­ ren ist, wird durch Druckzurücknahme über die Leitung 21 das Ende 22 des Zylinders zurückgezogen und somit der Mehrfachzylinder in seine Ruhelage eingefahren. Außen befinden sich wassergekühlte Zylinder 24 und innenlie­ gend 25. Über die Leitung 26 wird Wasser als Kühlmedium zugeführt und fließt über die innenliegenden Wasserzy­ linder 25 und das Ausflußrohr 27 wieder ab. Diese Küh­ lung ist erforderlich, damit dieser Mehrfachzylinder sich während seines Aufenthalts in den Induktionsspulen nicht unzulässig erwärmt. Fig. 1 shows the multiple cylinder in section. The inner re telescopic cylinder 20 is pressurized via line 21 and moves its end 22 in the direction of arrow 23 . If the block heating system is empty, the end 22 of the cylinder is withdrawn by reducing the pressure via line 21 and thus the multiple cylinder is retracted into its rest position. There are water-cooled cylinders 24 on the outside and 25 on the inside. Via the line 26 , water is supplied as the cooling medium and flows through the internal water cylinder 25 and the outflow pipe 27 . This cooling is necessary so that this multiple cylinder does not overheat during its stay in the induction coils.

Claims (4)

1. Vorrichtung zum Weiterschub der letzten Blöcke bei Ende einer Charge durch eine Blockerwärmungsanlage, bei der die angelieferten Blöcke von einem Blockantrieb erfaßt und die hintereinanderliegenden Blöcke kontinier­ lich durch die Blockerwärmungsanlage geschoben werden, dadurch gekennzeichnet, daß ein der Länge der Blocker­ wärmungsanlage angepaßter wassergekühlter Mehrfachzylin­ der (13) innen einen Teleskopzylinder (20) enthält, der den äußeren wassergekühlten Zylinder (24, 25) synchron zur eingestellten Blockvorschubgeschwindigkeit ausfährt.1. A device for pushing the last blocks at the end of a batch through a block heating system, in which the blocks supplied are detected by a block drive and the blocks in series are pushed continuously by the block heating system, characterized in that a heating system adapted to the length of the blocker water-cooled multiple cylinder which ( 13 ) contains a telescopic cylinder ( 20 ) inside, which extends the outer water-cooled cylinder ( 24 , 25 ) synchronously with the set block feed speed. 2. Vorrichtung nach Anspruch 1, dadurch gekenn­ zeichnet, daß der Weiterschub der Blöcke und/oder des Mehrfachzylinders bis zum Ausstoß des letzten Blockes von einer Überwachungseinrichtung (11) kontrolliert wird.2. Apparatus according to claim 1, characterized in that the thrust of the blocks and / or the multiple cylinder is checked until the last block is ejected by a monitoring device ( 11 ). 3. Vorrichtung nach Anspruch 1, dadurch gekenn­ zeicht, daß der Mehrfachzylinder (13) oberhalb der Be­ schickungsrinne (4) angeordnet ist und bei Blockmangel automatisch in die Rinne einschwenkt.3. Apparatus according to claim 1, characterized in that the multiple cylinder ( 13 ) above the loading channel ( 4 ) is arranged and automatically swivels into the channel in the event of a block shortage. 4. Vorrichtung nach Anspruch 3, dadurch gekenn­ zeichnet, daß beim Einschwenken in die Beschickungsrinne (4) der Zylindervorschub auf den Blockvorschub eingere­ gelt wird.4. The device according to claim 3, characterized in that the cylinder feed is applied to the block feed when swung into the feed channel ( 4 ).
DE19863609329 1986-03-20 1986-03-20 Apparatus for pushing on the last ingots through an ingot-heating plant Withdrawn DE3609329A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19863609329 DE3609329A1 (en) 1986-03-20 1986-03-20 Apparatus for pushing on the last ingots through an ingot-heating plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863609329 DE3609329A1 (en) 1986-03-20 1986-03-20 Apparatus for pushing on the last ingots through an ingot-heating plant

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DE3609329A1 true DE3609329A1 (en) 1987-09-24

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DE19863609329 Withdrawn DE3609329A1 (en) 1986-03-20 1986-03-20 Apparatus for pushing on the last ingots through an ingot-heating plant

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10571194B2 (en) 2014-01-31 2020-02-25 Danieli & C. Officine Meccaniche Spa Apparatus for heating and transferring metal materials for a melting plant, and method for melting metal materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10571194B2 (en) 2014-01-31 2020-02-25 Danieli & C. Officine Meccaniche Spa Apparatus for heating and transferring metal materials for a melting plant, and method for melting metal materials

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Legal Events

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8127 New person/name/address of the applicant

Owner name: BBC BROWN BOVERI AG, 6800 MANNHEIM, DE

8127 New person/name/address of the applicant

Owner name: ASEA BROWN BOVERI AG, 6800 MANNHEIM, DE

8139 Disposal/non-payment of the annual fee