A method and a device for coating a metal strip with a coating material which is at first still liquid. A first displacing device for displacing an electromagnetic stabilisation device relative to a blowing device in the plane transverse to the direction of transport of the metal strip is provided.

The invention relates to a device for processing a metal strip (200) after said metal strip has exited a coating tank (300) having liquid coating material (310). Above the coating tank, the device has a blow-off apparatus (110) having an air outlet slot (112) for blowing liquid parts of the coating off of the metal strip. Arranged above the blow-off apparatus (110) is an electromagnetic stabilization apparatus (140) for stabilizing the metal strip by means of electromagnetic forces after the exiting of the coating tank and the blow-off apparatus. According to the invention, in order to design known devices for treating a metal strip to be more favorable in respect of energy and in order to increase the accessibility of said devices for an operating person, the stabilization apparatus (140) is arranged above the blow-off apparatus (110) in such a way that the distance d between the line of action of the maximum force of the stabilization apparatus on the metal strip and on the air outlet gap (112) of the blow-off apparatus (110) is limited to a range of 100-1200 mm.

The present invention reduces the amount of gas consumed, edge-overcoating and splashing and adjusts plating thickness with high precision by providing a wiping nozzle with: thin plates, which are each inserted into a lip from the entrances to the lip for a specified distance to the inside of the two ends of the lip in the sheet width direction in order to seal the gas jet where the thin plates are inserted, and which are movable in the sheet width direction of the lip; and ropes extending in the sheet width direction of the lip so as to track the movements of the thin plates and seal the gas jet in a specified range.

A device for coating a metal strip with a liquid coating material comprises a coating container filled with, for example, liquid zinc. After the metal strip exits the coating container, liquid coating material adheres to the metal strip. Excess coating material is blown away from the surface of the metal strip by a blowing device. Thereafter, the metal strip runs through an electromagnetic stabilization device which is supported on the blowing device. Disturbing influences may cause the metal strip to no longer run centrally through a slot of the blowing device. A displacement or re-alignment of the blowing device is then required to guide the metal strip back to the set middle position. A first displacing device displaces the electromagnetic stabilization device relative to the blowing device in the plane transverse to the direction of transport of the metal strip to avoid an undesirable displacement of the electromagnetic stabilization device.

The present invention reduces the amount of gas consumed, edge-overcoating and splashing and adjusts plating thickness with high precision by providing a wiping nozzle with: thin plates, which are each inserted into a lip from the entrances to the lip for a specified distance to the inside of the two ends of the lip in the sheet width direction in order to seal the gas jet where the thin plates are inserted, and which are movable in the sheet width direction of the lip; and ropes extending in the sheet width direction of the lip so as to track the movements of the thin plates and seal the gas jet in a specified range.

An electromagnetic device (1) for stabilizing and minimizing the deformation of a strip (4) made of ferromagnetic material during its feeding in a system for coating the same strip with molten metal, by applying a distribution of force which is continuous in the direction transversal to the strip regardless of the width thereof. The device comprises first electromagnets and second electromagnets mirroring the first electromagnets with respect to said theoretical pass-line (50) of said strip (4). Each electromagnet includes a core comprising one pole and one feeding coil wound about the pole. The electromagnetic device comprises a connection element (26) made of ferromagnetic material which connects the cores of the first electromagnets (15, 15, 15, 15) and a connection element (26) made of ferromagnetic material which connects the cores of the second electromagnets (16, 16, 16, 16). The connection elements (26, 26) mirror the theoretical pass-line (50) of the strip (4).

An installation for coating a longitudinally-running, strip-shaped metal product includes a tank containing a coating in liquid form, into which the metal product is dipped, a wiping system disposed at a vertical outlet of the product from the tank and intended to wipe each face of the strip-shaped product, at least one ancillary device disposed at an outlet of the product from the wiping system in a manner facing one of the faces of the product, and a holding device holding the wiping system and the ancillary device. The holding device includes a securing unit forming a common lateral support for the wiping system and each ancillary device by using multiple securing points.

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 system and method for affecting the crossbow in a metal sheet in continuous coating process. The system comprises strip distance sensors for determining distances to the metal sheet. A controller is configured to adjust the position of the correcting roll, based on the strip distances, to affect the crossbow in the sheet to help control the thickness of the coating on the sheet. The system may comprise a crossbow model to help determine the new correcting roll position. The distances determined by the strip distance sensors may be also be used to adjust the position of the air knives.