A component for a hot dip coating system, which comes into direct contact with an immersion bath of liquid metal during operation of the hot dip coating system, having a metallic base body, wherein at least one portion of a surface of the base body is provided with a three-layered coating, which includes a corrosion-resistant bonding layer arranged directly on the surface portion, a barrier layer arranged on the bonding layer, and a ceramic surface layer arranged on the barrier layer.

An apparatus for the continuous hot dip coating of a metal strip is provided. The apparatus includes a vessel intended to contain a liquid metal bath, a bottom roller and a displacement casing for the metal strip. The casing includes an upper portion and a lower portion. The lower portion includes a pouring box delimiting at least two liquid metal pouring compartments. Each pouring compartment is inwardly delimited by an inner wall including an upper rim. The casing is provided with the pouring box, is rotatable relative to the metal strip around a first rotation axis and the pouring box is rotatable relative to the upper portion of the casing around a second rotation axis. A method for coating the metal sheet is also provided.

A steel-strip production apparatus adapted to produce a hot-dip-plated steel strip and a cold-rolled steel strip includes a continuous annealing furnace, a snout connected to the continuous annealing furnace, a contact-type seal plate device and a noncontact-type seal roll device, a hot-dip-plating tank that is movable, and a roll configured to turn the path direction of the steel strip after passing through the snout, wherein a hot-dip-plated steel strip production unit configured to produce a hot-dip-plated steel strip by bringing the steel strip continuously annealed in the continuous annealing furnace into the hot-dip-plating tank; and a cold-rolled steel strip production unit configured to produce a cold-rolled steel strip by transferring the steel strip continuously annealed in the continuous annealing furnace without causing the steel strip to pass through the hot-dip-plating tank, are configured to be switchable with one another.

A method of forming a coating of an AlZnSiMg alloy on a steel strip to form an AlZnMgSi coated steel strip is disclosed. The method includes the steps of dipping steel strip into a bath of molten AlZnSiMg alloy and forming a coating of the alloy on exposed surfaces of the steel strip and cooling the coated strip with cooling water. The cooling step includes controlling the p H of cooling water to be in a range of pH 5-9. Particular embodiments focus on AlZnSiMg alloys that contain the following elements in % by weight: Zn: 2 to 19, Si: 0.01 to 2, Mg: 1 to 10, and Balance Al and unavoidable impurities.

A continuous hot-dip plating machine includes: a sink roll provided in a plating bath and configured to upwardly change a transfer direction of the steel strip; a first support roll provided in the plating bath and located above the sink roll, the first support roll being in contact with a first surface of the steel strip in contact with the sink roll; and a second support roll provided in the plating bath and located above the first support roll, the second support roll being in contact with a second surface of the steel strip opposite the first surface. A diameter of the first support roll, a diameter of the second support roll, and a vertical distance between a rotation axis of the first support roll and a rotation axis of the second support roll satisfy specific conditions.

A method of galvanizing a workpiece. The method is performed using a trough. The trough includes connected walls configured to hold a molten galvanization material within the trough. The trough also includes a first end including a first gate system. The trough also includes a second end, opposing the first end, including a second gate system. The trough also includes a roller connected, inside the trough, to opposing inside walls of the connected walls. The trough also includes a sump disposed within the trough. The method also includes pumping the molten galvanization material into the sump until the molten galvanization material submerges the roller. The method also includes driving the workpiece through the first gate system, over the roller and through the molten galvanization material, and through the second gate system.

A method for coating a web with a metal layer includes heating a metal in a container to create molten metal. The metal is selected from a group consisting of lithium (Li), sodium (Na), potassium (K), indium (In), tin (Sn), cadmium (Cd), zinc (Zn), and lead (Pb). The method includes coating at least one surface of a web with a metal layer using the molten metal. The web is made of a material selected from a group consisting of copper (Cu), nickel (Ni), titanium (Ti), stainless steel, polymer, and carbon.

A method for operating a coating device for coating a metal strip. The corresponding coating device has an electromagnetic strip-stabilizing device having a plurality of electromagnetic actuators or coils for applying forces to the metal strip. In order to ensure that the strip-stabilizing device is operated only within the operating limits thereof, the magnitudes of the set currents for the actuators or the coils are compared with a specified current threshold value or the forces applied to the metal strip by the actuators are compared with a specified force threshold value and the correction roller is moved into such an adjustment position that the magnitudes of the set currents are below the current threshold value or the magnitudes of the forces are below the force threshold value.

An apparatus for the continuous hot dip coating of a metal strip is provided. The apparatus includes a vessel intended to contain a liquid metal bath, a bottom roller and a scroll casing of the metal strip. The casing includes, at its lower end, a pouring box delimiting a front pouring compartment for liquid metal and a rear pouring compartment for liquid metal. Each pouring compartment is inwardly delimited by an inner wall and outwardly delimited by an outer wall. The outer wall of the rear pouring compartment forms, with the passage plane of the metal strip, an angle greater than or equal to 15? in the usage configuration. A method is also provided.

A facility for dip-coating a metal strip in continuous motion includes: a liquid coating metal bath from which the strip exits in a vertical strand; a bottom roller, a decambering roller, and, optionally, a stabilizing roller, all immersed in the liquid-metal bath; drying blades at an exit of the bath, for injecting compressed gas in order to remove excess coating that has not yet solidified so as to create a drying wave having a downward return stream of liquid metal; and a dissipating hydrodynamic-stabilization device placed between the drying blades and a last immersed roller, the dissipating hydrodynamic-stabilization device including a plurality of hydrodynamic pads for applying a load to at least one side of the metal strip and mounted so as to pivot around hinges so as to self-align the pads, the plurality of hydrodynamic pads extending transversely across a width of the strip.