Norskhydro Asa

John Olav Fagerlie

Idar Kjetil Steen

Terje Haugen

Ulf Tundal

Arild Håkonsen

John Erik Hafsås

Terje Iveland

Bjørn Vaagland

Geir Øyen

Ulf Håkon Tundal

Jr Harald NÆSS

Apparatus and method for filtering molten metal including a container with a removable lid to keep the container sealed during operation, the container having an inlet chamber having an inlet opening receiving metal from a metal supply launder and outlet chamber with outlet opening connected to a launder segment. The container having a partition wall between the inlet chamber and outlet chamber and a ceramic foam filter mounted in the outlet chamber. The inlet chamber and outlet chamber being provided within the container and split by the partition wall. The container being connected in parallel with the metal supply launder via stubs. The launder being provided with a dam or valve device downstream the outlet of the container and another dam or valve device between the said launder stubs. Inside the container there is further arranged a second outlet chamber with a filter.

Apparatus and method for applying ceramic foam filters for the removal of unwanted inclusions from metal melts

Apparatus and method for filtering molten metal, in particular aluminium, including a container () 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 () provided on top of the container to keep the container sealed (air tight) during operation, the container () being provided with an inlet chamber () having an inlet opening () receiving metal from a metal supply launder () and an outlet chamber () with an outlet opening () in which a ceramic or refractory filter () is mounted.

Apparatus and method for the removal of unwanted inclusions from metal melts

A device in connection with equipment for continuous or semi-continuous casting of metal, in particular direct mold (DC) casting of aluminum in the form of a billet or wire billet. The device includes a mold with a cavity or a mold () that is provided with an inlet connected, via supply channels () and a distribution chamber (), to a metal reservoir () and an outlet arranged in the mold with a support and devices for cooling the metal. In connection with the supply channels () between the metal reservoir () and the molds (), a metal lifting container () is arranged at an inlet () to the metal reservoir () via a channel () and to the distribution chamber () and the molds () via an outlet () via another channel (). The metal lifting container is sealed from the surroundings and has a connection socket () for connection to a vacuum source so that, when a casting operation starts, metal is sucked into the metal lifting container and lifted to a level that is higher than the level of the distribution chamber () above the molds ().

Arrangement related to equipment for continuous or semi-continuous casting of metal

Growing community of inventors

Sunndalsøra, Norway

John Olav Fagerlie