Patent classifications
F27B2014/0818
Melt feeding for strip casting systems
A strip casting system for aluminium and/or aluminium alloys comprising a casting furnace and a revolving chill mould having a casting gap. The revolving chill mould is designed as a roll pair, roller pair, caterpillar pair or belt pair. The strip casting system has an active means for transporting metal melt from the casting furnace to the casting gap and a casting region arranged in front of the casting gap. The casting region is delimited on one side by the revolving chill mould. A melt pool is formed in the casting region, from which metal melt flows or is drawn into the casting gap. The casting furnace is connected to the casting region by a pipe system with means for feeding the metal melt into the casting region, which can feed the metal melt to the casting region below the surface of the melt pool formed in the casting region.
Melting furnace for producing metal
In production of a reactive metal using a melting furnace for producing metal having a hearth, ingots can be efficiently produced by efficiently cooling the ingots extracted from the mold provided in the melting furnace. In addition, an apparatus structure in which multiple ingots can be produced with high efficiency and high quality from one hearth, is provided. A melting furnace for producing metal is provided, the furnace has a hearth for having molten metal formed by melting raw material, a mold in which the molten metal is poured, an extracting jig which is provided below the mold for extracting ingot cooled and solidified downwardly, a cooling member for cooling the ingot extracted downwardly of the mold, and an outer case for keeping the hearth, the mold, the extracting jig, and the cooling member separated from the air, wherein at least one mold and extracting jig are provided in the outer case, and the cooling member is provided between the outer case and the ingot, or between the multiple ingots.
SYSTEM FOR PREPARING AN ALUMINIUM MELT INCLUDING A FLUIDIZATION TANK
A system of obtaining an aluminium melt including SiC particles for use when moulding vehicle parts, e.g. brake disks. The system comprises a pre-processing tank (2),configured to receive SiC particles and to apply a pre-processing procedure to pre-process the SiC particles; a SiC particle transport member (4) configured to transport the pre-processed SiC particles from the pre-processing tank (2) to a crucible (6) of a melting furnace device (8), and that the melting furnace device (8) is configured to receive and melt solid aluminium, e.g. aluminium slabs, and to hold an aluminium melt (10) and to receive said pre-processed SiC particles (12). The pre-processing tank (2) is a fluidization tank, and that said pre-processing procedure is a fluidization procedure including heating and fluidizing of said SiC particles. The fluidization procedure is performed during a predetermined time period, and that said heating comprises heating said SiC particles up to at least 400° C., in order to achieve a protective oxide layer around said SiC particles.
MELT FEEDING FOR STRIP CASTING SYSTEMS
A strip casting system for aluminium and/or aluminium alloys comprising a casting furnace and a revolving chill mould having a casting gap. The revolving chill mould is designed as a roll pair, roller pair, caterpillar pair or belt pair. The strip casting system has an active means for transporting metal melt from the casting furnace to the casting gap and a casting region arranged in front of the casting gap. The casting region is delimited on one side by the revolving chill mould. A melt pool is formed in the casting region, from which metal melt flows or is drawn into the casting gap. The casting furnace is connected to the casting region by a pipe system with means for feeding the metal melt into the casting region, which can feed the metal melt to the casting region below the surface of the melt pool formed in the casting region.
Apparatus for the production of metal
Apparatus for the production of metal including a furnace for melting metal provided with a crucible inside which a metal charge is melted. The furnace provides for tapping a liquid metal disposed on the bottom of the crucible and includes a tapping channel for the transfer of the liquid metal from the furnace. The apparatus also includes a delivery unit for delivering inert material (S) having a delivery device for the selective delivery of the inert material (S) into the tapping channel.
APPARATUS FOR THE PRODUCTION OF METAL
Apparatus for the production of metal including a furnace for melting metal provided with a crucible inside which a metal charge is melted. The furnace provides for tapping a liquid metal disposed on the bottom of the crucible and includes a tapping channel for the transfer of the liquid metal from the furnace. The apparatus also includes a delivery unit for delivering inert material (S) having a delivery device for the selective delivery of the inert material (S) into the tapping channel.
System and method for adding molten lithium to a molten aluminium melt
A system for adding molten lithium and inert gas in a molten aluminium or aluminium alloy melt including, a crucible defining a chamber for melting and storing molten metal, in particular molten lithium; the crucible having a sealed lid; an inert gas delivery system for maintaining chamber overpressure using inert gas; a conduit for withdrawing a portion of the molten metal from the crucible. The conduit arranged with respect to the crucible or the sealed lid so the conduit inlet can be moved below and above the molten metal surface level and arranged for feeding molten metal from the crucible to a separate holding furnace with the help of overpressure when the conduit inlet is below the molten metal surface level and arranged for feeding inert gas from the crucible to the separate holding furnace when the conduit inlet is above the molten metal surface level.
Crucible device with temperature control design and temperature control method therefor
A crucible device with temperature control design includes a crucible body, an induction coil unit, a nozzle flange body and a melt delivery tube and a temperature control unit. The induction coil unit surrounds the crucible body, provides a heat source during use, and is configured to enable a metal material to melt and produce a melt having a melting skull. The melt delivery tube is communicated via the nozzle flange body to a bottom of the crucible body and is configured to deliver the melt from the crucible body. The temperature control unit includes a microprocessor, a heater and a temperature sensor which are electrically coupled to each other, and are configured to control a curve of the melting skull to drop to a preset position.
ELECTRIC FURNACE AND METHOD FOR PRODUCING VALUABLE METAL
The present invention provides an electric furnace including: a furnace body; and a plurality of electrodes that are provided so as to hang down into the interior of the furnace body from a top section thereof. The raw material is heated and melted in the furnace body by energizing the electrodes and a molten material consisting of a slag and a metal is generated. The electric furnace is configured so that the overall heat transfer coefficient of a side wall of the furnace body is lower than the overall heat transfer coefficient of a side wall of the furnace body, the side wall coming into contact with a layer of the metal formed in a bottom layer, the side wall coming into contact with a layer of the slag formed in a top layer, and said layers being formed in the molten material due to gravity separation.
AUTOMATED MEASUREMENT PROCESS OF THE TEMPERATURE OF A FUSION FURNACE BY MEANS OF A TEMPERATURE PROBE
The present invention relates to a process for measuring the temperature of a fusion furnace, in particular for the production of superalloy components with directional (DS)/monocrystalline (SX) grain structure by means of a lost wax precision casting process by means of a temperature probe, said fusion furnace comprising a melting chamber, a thermal chamber in connection with said melting chamber, and an extraction chamber in connection with said thermal chamber, a valve interposed between said two melting and thermal chambers, said probe comprising a thermocouple for high temperatures, a support element for positioning the temperature probe in the melting chamber of the furnace, displacement and measurement means of the position of the thermocouple for displacing and measuring the position of the thermocouple within the thermal chamber of the furnace, control device to actuate and control said displacement and measuring means.