Equipment for the continuous hot dip-coating of a metal strip 9 including an annealing furnace, a tank 2 containing a liquid metal bath 3, a snout connecting the annealing furnace and tank 2, through which the metal strip 9 runs in a protective atmosphere and the lower part of the snout, the sabot 5, is at least partly immersed in the liquid metal bath 3 in order to define with the surface of the bath, and inside this snout, a liquid seal 6, an overflow 7 not connected to the snout, the overflow 7 including at least one tray 8, placed in the vicinity of the strip 9 when entering the liquid metal bath 3 and encompassed by liquid seal 6.

A coated stainless-steel substrate including a coating including nanographites and a binder being sodium silicate, wherein the stainless-steel substrate has the following composition in weight percent: C≤1.2%, Cr≥11.0%, Ni≥8.0% and on a purely optional basis, one or more elements such as Nb≤6.0%, B≤1.0%, Ti≤3.0%, Cu≤5.0%, Co≤3.0%, N≤1.0%, V≤3.0%, Si≤4.0%, Mn≤5.0%, P≤0.5%, S≤0.5%, Mo≤6.0%, Ce≤1.0%, the remainder of the composition being made of iron and inevitable impurities resulting from the elaboration. A method for the manufacture of this coated stainless-steel substrate is also provided.

Disclosed are a method and a device for controlling flow of liquid zinc (2) in a zinc pot (1) for hot-dip galvanization. Under the blowing effects of an air knife above the zinc pot (1) for hot-dip galvanization onto strip steel (3), the liquid zinc (2) diffuses and flows outwards to zones (zones I, II, III and IV) comprising the left side, the right side, the front end of the zinc pot, respectively, and a zone between the strip steel (3) and a furnace snout (4), and surface dross rapidly generated on the surface of the liquid zinc (2) is driven to flow outwards to the zones (zones I, II, III and IV). On edge sides of the zones (zones I, II, III and IV), travelling magnetic field generators (71, 72, 73, 74, 75, 76, 77, 78, 712, 756) are arranged in multiple sections above the surface of the liquid zinc (2) in the zinc pot (1), so as to excite a travelling magnetic field to generate an electromagnetic driving force on the liquid zinc (2) to drive the flow of the liquid zinc (2). The flow of the liquid zinc (2) caused by the travelling magnetic field generators (71, 72, 73, 74, 75, 76, 77, 78, 712, 756) is engaged with the blowing flow of the air knife, driving the surface liquid zinc (2) in the zinc pot (1) to flow in order towards a rear end (zone V) of the zinc pot (1). The surface dross floating on the surface of the liquid zinc (2) is driven by the flowing liquid zinc (2) to flow in a controlled direction.

An equipment for the continuous hot dip-coating of a metal strip including an annealing furnace, a tank containing a liquid metal bath, a snout connecting the annealing furnace and the tank, through which the metal strip runs in a protective atmosphere and the lower part of the snout, the snout tip, is at least partly immersed in the liquid metal bath in order to define with the surface of the bath, and inside this snout, a liquid seal and a separate overflow attached/hold to the snout through fixings, the overflow including at least one tray, placed in the vicinity of the strip when entering the liquid metal bath and encompassed by the liquid seal.

Disclosed is a device for removing mattes from the surface of a liquid metal bath inside a duct of a line for continuously coating a metal strip having first and second faces, the first face being intended to come into contact with a bottom roller, comprising a compartment via which the liquid metal inside the duct is replenished by being drawn off by a pump to which the compartment is connected, characterized in that the compartment is capable of being removed by disassembly means without the metal strip needing to be cut.

A method of supplying a Zn—Al alloy to a molten zinc pot which accommodates a molten zinc bath in a hot dip galvanizing line, includes: supplying the Zn—Al alloy from a supply portion provided at a lower portion of an insertion guide having a pipe shape, in which the supply portion is immersed between an inner wall of the molten zinc pot on a downstream side in a travelling direction of a steel sheet and a front support roll installed in the molten zinc bath at a depth within ±400 mm from a lower end of the front support roll, and an inside of the insertion guide is pressurized by inert gas to prevent the molten zinc bath from advancing to the inside of the insertion guide.

The invention relates to an apparatus for the continuous hot-dip coating of metal strip, preferably steel strip, comprising a melting bath vessel, a snout, which opens in the melting bath vessel, for introducing a metal strip, which is heated in a continuous furnace, into the melting bath in protective gas, and a deflecting roller, which is arranged in the melting bath vessel, for deflecting the metal strip, which is entering the melting bath, in a direction pointing out of the melting bath, wherein that end of the snout which is dipped into the melting bath has at least one runoff chamber which is bounded inward by an overflow wall, downward by a floor and outward by the wall of the snout, wherein the overflow edge of the overflow wall lies at least in sections below the melting bath surface, and wherein a suction line with a pump is connected to the runoff chamber, characterized in that the runoff chamber is provided with at least one through opening through which liquid molten metal can flow out of the melting bath into the runoff chamber, wherein the at least one through opening is arranged lower than the overflow edge.

A continuous galvanizing apparatus for multiple rods. The apparatus includes a kettle for heating and retaining a liquid therein with at least a portion of the kettle having an open top. A trough assembly retains liquid therein. The trough assembly is arranged above the kettle open top above the liquid level, with the trough assembly having at least one lower chamber within the kettle below a level of the liquid in the kettle. A pump in the lower chamber draws liquid from the kettle to the trough assembly. A plurality of entry openings are provided in the trough assembly along with a plurality of exit openings opposed to and aligned with the entry openings. Adjacent tubes in the trough assembly are aligned with the plurality of entry and exit openings.

A continuous coating line includes a snout assembly exposed to molten metal. The snout assembly includes a snout tip positioned about a steel strip that is immersible in the molten metal to provide a seal around the steel strip during entry into the molten metal. The snout tip includes a refractory material that is resistant to wear, abrasion, and corrosion when the snout tip is exposed to the molten metal.

Equipment for the continuous hot dip-coating of a metal strip 9 including an annealing furnace, a tank 2 containing a liquid metal bath 3, a snout connecting the annealing furnace and tank 2, through which the metal strip 9 runs in a protective atmosphere and the lower part of the snout, the sabot 5, is at least partly immersed in the liquid metal bath 3 in order to define with the surface of the bath, and inside this snout, a liquid seal 6, an overflow 7 not connected to the snout, the overflow 7 including at least one tray 8, placed in the vicinity of the strip 9 when entering the liquid metal bath 3 and encompassed by liquid seal 6.