Norskhydro Asa

Terje Haugen

Idar Kjetil Steen

John Olav Fagerlie

Ulf Tundal

Ulf Håkon Tundal

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.

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Surnadal, Norway

Terje Haugen