Norskhydro Asa

Ulf Håkon Tundal

Idar Kjetil Steen

Oddvin Reiso

Arild Håkonsen

John Erik Hafsås

John Olav Fagerlie

Rune Ledal

Geir Atle Røen

Terje Haugen

Daniel Anders Sjølset

Svein Roger Skjervold

Angela Dawne Kubiak

Daniel Anders SJØLSET

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

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.

Equipment for continuous or semi-continuous casting of metal with improved metal filling arrangement

Growing community of inventors

Sunndalsøra, Norway

Ulf Håkon Tundal