Abstract: Apparatus for feeding doses of fluidisable materials comprising one upper Intel pipe (1?, 1?), one lower outlet pipe (2?, 2?) and a Pausing (6?,6?). and a fluidising element (5?,5?) for controlling outflow of materials through the outlet pipe (2?, 2?), The apparatus further comprising a control volume constituted by a chamber (3?,3?) between the Intel pipe (1?, 8?) and the outlet pipe (2?,2?) and a fluidising element (4?, 4?) for controlling inflow of materials Into the chamber (3?, 3?). A diverter (7?,7?) la arranged between the Inlet pipe (1?, 8?) and the outlet pipe {2?, 2?) defining said chamber (3?, 3?) between said Inlet pipe (1?,8?) diverter (7?,7?) the housing (6?, 6?) and the fluidising element (5?,5?). The Invention also relates to a method for feeding doses of fluidisable materials by the apparatus.

Abstract: A method for casting that includes a.) determining a diameter (D) of a cross section of a product to be cast in meter (m), b.) determining an intended steady-state casting speed (V) of the product to be cast using direct chill casting in meter per second (m/s), c.) determining a Si content (cSi) in percent by weight based on the total weight of a melt (wt-%) for the melt to be used for casting the cast product, d.) preparing a melt comprising Zn: 5.30 to 5.9 wt-%, Mg: 2.07 to 3.3 wt-%, Cu: 1.2 to 1.45 wt-%, Fe: 0 to 0.5 wt-%, Si: according to cSi, impurities up to 0.2 wt-% each and 0.5 wt-% in total, and balance aluminium, and e.) casting the melt into the cast product having the intended diameter (D) using direct chill casting, wherein the casting is carried out using the intended steady-state casting speed (V).

Abstract: Lifting device for lifting a longitudinal cast product from a casting pit, the cast product arranged in the casting pit such that a longitudinal axis of the cast product is in a vertical direction, the device having a support structure that is, optionally permanently, fixed to a ground surrounding the casting pit, a lifting structure that has an end that is rotatably connected to the support structure via a support bearing, a head that is, optionally rotatably, connected to the lifting structure and that can selectively attach to the cast product.

Abstract: Method for the manufacturing of an Al—Mg—Si(—Cu) extrusion alloy, the alloy initially being cast to extrusion billet(s), containing in wt. % Si: 0.20-1.50 Mg: 0.25-1.50 Fe: 0.05-0.50 Cu: 0.00-1.00 Mn: 0.00-1.00 Cr: 0.00-0.50 Zn: 0.00-0.50 Ti: 0.00-0.20, and including incidental impurities and balance Al.

Abstract: A casting apparatus for continuous or semi-continuous casting having a reservoir for supplying liquid metal, a direct chill casting mold having a mold cavity for at least temporarily holding liquid metal and to at least partially solidify the liquid metal into a cast product, and a pump disposed on the flow path between the reservoir and the mold cavity, wherein the pump is operable to generate a force in the liquid metal that is acting against the tendency of the liquid metal to flow along the flow path from the reservoir into the mold cavity by gravity to control a flow of the liquid metal from the reservoir into the mold cavity, wherein the pump is a direct current electromagnetic pump.

Abstract: Apparatus and method for filtering molten metal, in particular aluminium, including a container (1) with an outer shell or casing of metal and an inner thermally insulated interior cladding or wall construction made of heat resistant insulation and refractory material. A removable lid (2) provided on top of the container to keep the container sealed (air tight) during operation, the container (1) being provided with an inlet chamber (3) having an inlet opening (4) receiving metal from a metal supply launder (10) and an outlet chamber (5) with an outlet opening (6) in which a ceramic or refractory filter (7) is mounted.

Abstract: A cathode element (1?) for an electrolysis cell of Hall-Heroult type for producing aluminium, comprises a body (4) of calcinated carbonaceous material connected with the upper side of a metallic collector plate (2). A space between the said carbonaceous body and the collector plate being filled with an electric conductive material preferably comprising conductive particles. The collector plate (2) further can comprise at least one horizontal outlet (5, 5?) on at least one side and/or at least one vertical metallic current outlet (7) connected to the lower side of the collector plate (2). In one embodiment the collector plate is divided in two sections (20; 20). The invention also relates to a cell of Hall-Heroult type utilizing such cathode elements (1).

Abstract: A method and means for application of anode covering material (ACM) in an electrolysis cell for aluminium production where the cell being of Hall-Héroult type with prebaked anodes. The cell contains a cathode pot with a rectangular footprint and a superstructure with a gas collecting hood that lays onto the top of the cathode pot. A floor construction at least substantially surrounds the cell at a level below the top of the cathode pot and ventilation openings provided with grates are arranged in the floor in the close vicinity to the cell. The superstructure's hood is provided with removable lids that are removed for giving access to the cell's anodes through openings. ACM is applied via a feed tube to cover the anodes and the deposit of ACM is supported by a shuttering.

Abstract: Method and means for suppressing discoloration during thermal treatment of a product of a magnesium containing aluminium alloy, the alloy contains in wt. % Mg: 0.45-12.0, with a preferred range of 0.45-6.0 wt %. The product, being either an extrusion billet, a sheet ingot, a cast product, or a forged product is heated to a temperature T where it is prone to surface discoloration and oxidation, wherein during the thermal treatment it is exposed to a suppressing atmosphere comprising 0.5-5.0% CO2 gas with a preference for 0.5-1.5% CO2 gas. FIG.

Abstract: A method for optimizing stability in an electrolysis cell of the Hall-Héroult type where the cell has suspended prebaked anodes and a cathode panel. The panel comprises several cathode blocks or cathode block sections. A metal pad and an electrolytic bath are located between said anodes and the cathode panel. The force field acting on the metal pad is calculated and monitored in a computer based model of the cell, whereby the local current paths and correspondingly the local forces in the metal above the cathode panel are modified by influencing selectively the current distribution in individual cathode blocks or block sections in the computer based model. At least one modification is implemented in the cell. The invention also relates to a correspondingly modified cell.

Abstract: Apparatus and a method for filtering molten metal, in particular aluminium, including a container (1) with a removable lid (20) provided on top of the container to keep the container sealed (air tight) during operation, the container (1) being provided with an inlet chamber (2) having an inlet opening (5) receiving metal from a metal supply launder (10) and outlet chamber (3) with outlet opening (6) connected to a launder segment (10?). The container further being provided with partition wall (8) between the inlet chamber (2) and outlet chamber (3) and with ceramic foam filter (17) mounted in the outlet chamber. The inlet chamber (2) and outlet chamber (3) are provided side by side within the container (1) and being split by the partition wall (8) extending from the bottom of the container and upwardly to a preset level of the container interior height.

Abstract: Apparatus for feeding doses of fluidisable materials comprising one upper Intel pipe (1?, 1?), one lower outlet pipe (2?, 2?) and a Pausing (6?,6?). and a fluidising element (5?,5?) for controlling outflow of materials through the outlet pipe (2?, 2?). The apparatus further comprising a control volume constituted by a chamber (3?,3?) between the Intel pipe (1?, 8?) and the outlet pipe (2?,2?) and a fluidising element (4?, 4?) for controlling inflow of materials Into the chamber (3?, 3?). A diverter (7?,7?) la arranged between the Inlet pipe (1?, 8?) and the outlet pipe {2?, 2?) defining said chamber (3?, 3?) between said Inlet pipe (1?,8?) diverter (7?,7?) the housing (6?, 6?) and the fluidising element (5?,5?). The Invention also relates to a method for feeding doses of fluidisable materials by the apparatus.

Abstract: An apparatus for continuous or semi-continuous low pressure casting of metal, in particular directly-cooled (DC) casting of extended objects such as a rods, bars or billets of aluminium. The apparatus includes a frame construction with at least one chill or mould having a mould cavity that is provided with an upwardly open inlet and an outlet with cooling means. The inlet of the mould is connected to a distribution chamber receiving liquid metal from a metal store such as a holding furnace via a metal supply channel or launder. A flexible launder section is provided between the launder and the metal distribution chamber whereby the frame construction with the moulds and distribution chamber can be raised and lowered to enable complete filling of metal to the moulds. Subsequently it is possible to control the metal level in each respective mould cavity in relation to the metal level in the launder and thereby controlling the low pressure casting.

Abstract: Aluminium alloys suitable for etched and anodized components, in particular aluminum extrusion alloys of the types containing Magnesium and Silicon, which after being extruded to any wide variety of forms for different applications such as house buildings and other building applications is subjected to etching in a conventional alkaline etching bath and subsequent anodizing, wherein the relation between Cu and Zn is controlled to avoid preferential grain etching and the ratio of Cu/Zn is below 1.

Abstract: The present invention concerns a method and an arrangement for processing calcinated carbon bodies such as anodes or cathodes for use in connection with electrolytic production of aluminium. The carbon bodies are processed using a rotating processing tool (101) that consists of a mainly circular disc with cutting edges (114) mounted at its periphery. The cutting edges may be made of polycrystalline diamond (PCD) or an equivalent material. The rotating processing tool mounted on a rotating, driven spindle and is guided by guiding elements (110) that can be jets or perforated discs that blows pressurized air at the tool, or rollers (120). With the present invention it is possible to create narrow and deep slots in calcinated carbon bodies in an efficient manner with low tool wear.

Abstract: Method for producing structural components from heat treatable aluminum alloys based on extruded material, in particular AA 6xxx series alloys, the components having improved crush properties and being particular applicable in crash zones of vehicles, such as longitudinals and crash boxes, the method including the following steps: a. casting a billet from said alloy by DC casting, b. homogenizing the cast billet, c. forming a profile from the billet by extrusion, preferably a hollow section d. optionally, separate solution heat treatment, e. quenching the profile down to room temperature after the forming step and the possible separate solutionising step, f. stretching the extruded or the separate solutionised profile to obtain at least 1.5% plastic deformation, g. artificially ageing the profile.

Abstract: Apparatus and method for filtering molten metal, in particular aluminium, including a container (1) with an outer shell or casing of metal and an inner thermally insulated interior cladding or wall construction made of heat resistant insulation and refractory material. A removable lid (2) provided on top of the container to keep the container sealed (air tight) during operation, the container (1) being provided with an inlet chamber (3) having an inlet opening (4) receiving metal from a metal supply launder (10) and an outlet chamber (5) with an outlet opening (6) in which a ceramic or refractory filter (7) is mounted.

Abstract: Method for the manufacturing of extruded profiles that can be anodized with high gloss surfaces, the profiles being extruded of an age hardenable aluminium alloy that can be recrystallized after cold deformation, for example a 6xxx or 7xxx alloy, where the alloy initially is cast to extrusion billet(s), where the billets are homogenized at a holding temperature between 480° C. and 620° C. and soaked at this temperature for 0-12 hours, where after the billets are subjected to cooling from the homogenization temperature at a rate of 150° C./h or faster, a) the billets are preheated to a temperature between 400 and 540° C. and extruded preferably to a solid shape profile and cooled rapidly down to room temperature, b) deforming the profile more than 10% by a cold rolling operation, where after c) the profile is flash annealed with a heating time of maximum two minutes to a temperature of between 400-530° C.

Abstract: An apparatus for continuous or semi-continuous low pressure casting of metal, in particular directly-cooled (DC) casting of extended objects such as a rods, bars or billets of aluminium. The apparatus includes a frame construction with at least one chill or mould having a mould cavity that is provided with an upwardly open inlet and an outlet with cooling means. The inlet of the mould is connected to a distribution chamber receiving liquid metal from a metal store such as a holding furnace via a metal supply channel or launder. A flexible launder section is provided between the launder and the metal distribution chamber whereby the frame construction with the moulds and distribution chamber can be raised and lowered to enable complete filling of metal to the moulds. Subsequently it is possible to control the metal level in each respective mould cavity in relation to the metal level in the launder and thereby controlling the low pressure casting.

Abstract: An anode for use in an electrolysis process for production of aluminium in cells of Hail-Héroult type, the anode comprises a body or block (120; 20) of calcinated carbonaceous material connected with an electrical current lead, where said current lead being connected with an anode rod (103; 3) and further being part of an anode hanger (101; 1). The current lead comprises at least one metallic suspension plate(s) (104; 4. 4?) with vertically oriented redding plates (105 105??,5, 5?) at least partly embedded by their lower partly in corresponding recesses (113, 113??, 13. 13?; 100, 100?) in the top of the carbonaceous block (120; 20} and further connected by mechanical fixation means (108; 8; 14, 16). Said recesses are wider than the rodding plates and being filled with an electric conductive particulate material only. It Is also described a method for processing an undercut recess (10) in the an ode top for mechanically fixing the anode block (20) to a protrusion (8) on the current lead.