Patent ID: 7214272
Filing Date: 2007-05-08
Classification: C23C

Abstract:
1. Device for the hot dip coating of metal strands ( 1 ), especially steel strip, in which the metal strand ( 1 ) can be vertically guided in at least some sections through a tank ( 3 ) that contains the molten coating metal ( 2 ) and in which the metal strand ( 1 ) is guided by at least one roller ( 4 ) that runs on bearings, such that a section ( 8 ) of the at least one roller ( 4 ) or at least its shaft ( 5 ) passes through the sidewalls ( 6 ) of the tank ( 3 ) and is supported in bearings outside the tank ( 3 ), and such that sealing means are installed in the area of the sidewall ( 6 ) of the tank ( 3 ) for sealing the coating material ( 2 ), wherein the sealing means comprise at least one electromagnetic inductor ( 7 ), such that the section ( 8 ) of the roller ( 4 ) or the roller shaft ( 5 ) that is located in the area of the sidewall ( 6 ) of the tank ( 3 ) has a recess ( 9 ) that is formed as a hollow, wherein the device is further comprised of a guide channel ( 10 ) and at least one additional electromagnetic inductor ( 13 ) and wherein the metal strand ( 1 ) is guided vertically through the tank ( 3 ) and through the guide channel ( 12 ) upstream of the tank ( 3 ), such that the at least one additional electromagnetic inductor ( 13 ) is installed in the area of the guide channel ( 12 ).