Back to results
US 6,582,520 B1Granted
Dross collecting zinc pot
AssigneeAK Steel Corporation
InventorsSteven L. Boston, David J. Meneice
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeAK Steel Corporation
InventorsSteven L. Boston, David J. Meneice
Estimating the term…
A zinc-coating pot for galvanizing steel strip has two levels along its bottom surface. The first, shallower level is located under a coating roll, thereby creating an area where the molten zinc-coating metal flow rate is relatively high. Dross particles remain suspended and do not accumulate on the bottom of the zinc-coating pot in this region. A second, deeper level is located to one side of the first level. This second level creates a space wherein the molten metal flow rate is less than the terminal velocity of the dross particles. This encourages sedimentation of the dross particles in this region. It provides an accumulation area for any bottom dross to be later removed by a dross removal mechanism, such as mechanical scoops or by pumping, without interruption to the coating process.
A coating pot for coating metal strip with a zinc-containing metal comprising a coating portion, a collecting portion which is free of mixers, stirrers and other devices that would create turbulence in the contents of the collecting portion, and a transition area located between the coating portion and the collecting portion, wherein the transition area is sloped, wherein the depth of the collecting portion is greater than the depth of the coating portion, and wherein the collecting portion is sized and located so that
A coating apparatus comprising:
Dependencies are inferred from the claim text.