B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
B22D 15/04 (2006.01) B22D 11/045 (2006.01) B22D 11/049 (2006.01) B22D 15/00 (2006.01)
Patent
CA 2184668
The invention concerns an apparatus, a mould and a stop procedure for horizontal direct chill casting of light metals, especially magnesium and magnesium alloys. The apparatus comprises a tundish (3) for maintaining molten metal and a horizontally disposed mould (10) in communication with said tundish. The mould has a primary cooling (11) of the mould walls where the metal is chilled without being in contact with the water and a secondary direct cooling (12) of the cast metal. The mould has separate circuits for primary and secondary cooling water. An insulating transition ring (21) is arranged at the mould entrance. It is important that the total mould depth is short, preferably between 25 and 45 mm. To obtain a good surface quality and to avoid discolouring of the metal it preferred that the mould has an inlet (22) for supply of protective gas to the transition ring. The inlet opening (24) to the mould should be asymmetrically arranged, nearer the bottom of the mould. It is preferred to use an apparatus wherein the tundish (3) and mould (10) is separated by a heated inlet of insulation material (26) embedded in a steel mantle (28) where the steel is in contact with the molten magnesium. The tundish should have a remote controlled drainage system.
Kittilsen Bjýrn
Oiestad Bjýrn
Fetherstonhaugh & Co.
Norsk Hydro A.s
LandOfFree
Apparatus, a mould and a stop procedure for horizontal... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus, a mould and a stop procedure for horizontal..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus, a mould and a stop procedure for horizontal... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1442624