A steel sheet shape control method includes, (A) setting a target correction shape of the steel sheet at a position of an electromagnet to a curved shape, (B) measuring a steel sheet shape when electromagnetic correction is performed, (C) calculating the steel sheet shape in a nozzle position based on the steel sheet shape, (D) repeating (B) and (C) by resetting the target correction shape to a curved shape having a smaller amount of warp, (E) when the amount of warp of the steel sheet shape at the position of the nozzle is less than the upper limit value, (F) calculating vibration of the steel sheet at the position of the nozzle, and (G) adjusting a control gain of the electromagnet until amplitude of vibration is less than a second upper limit value when the amplitude of the vibration is equal to or more than the second upper limit value.

The invention provides a method and apparatus for coating a metal product wherein a molten coating is applied to a surface of said metal product and wherein part of said molten coating is wiped off said metal product by an air flow and a nitrogen gas flow.

A system for treating wire includes an elongated vessel that contains a molten fluid. A pump is disposed in the molten fluid in the vessel. The pump includes an elongated discharge conduit extending for at least a portion of the length of the vessel. Conveyance structure enables the wire to be conveyed through the molten fluid. Operation of the pump enables a temperature of the molten fluid in the vessel to be changed. The wire is heat treated as a result of passing through the molten fluid.

A system for treating wire includes an elongated vessel that contains a molten fluid. A pump is disposed in the molten fluid in the vessel. The pump includes an elongated discharge conduit extending for at least a portion of the length of the vessel. Conveyance structure enables the wire to be conveyed through the molten fluid. Operation of the pump enables a temperature of the molten fluid in the vessel to be changed. The wire is heat treated as a result of passing through the molten fluid.

The invention relates to a device for strip guidance in a hot medium, comprising a deflection roller (3, 38) mounted on supporting arms (1, 2, 34, 37, 54, 57) and a carrier device holding the supporting arms (1, 2, 34, 37, 54, 57). The device is characterized in that one of the supporting arms (1, 2, 34, 37, 54, 57) is mounted on the carrier device by means of a floating bearing (5), wherein the floating bearing (5) allows the mounted supporting arm on the carrier device to move parallel to the longitudinal direction of the deflection roller (3, 38), and in that an elastic counter element (12), which acts parallel to the longitudinal direction of the deflection roller (3, 38) upon the supporting arm (1, 2, 34, 37, 54, 57) mounted on the floating bearing (5), is present and counteracts an increasing distance between the supporting arms (1, 2, 34, 37, 54, 57). In this way, the technical problems of offsetting a temperature-induced length change of the deflection roller and avoiding an uncontrolled movement of the system are solved.

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).

A steel sheet shape control method includes, (A) setting a target correction shape of the steel sheet at a position of an electromagnet to a curved shape, (B) measuring a steel sheet shape when electromagnetic correction is performed, (C) calculating the steel sheet shape in a nozzle position based on the steel sheet shape, (D) repeating (B) and (C) by resetting the target correction shape to a curved shape having a smaller amount of warp, (E) when the amount of warp of the steel sheet shape at the position of the nozzle is less than the upper limit value, (F) calculating vibration of the steel sheet at the position of the nozzle, and (G) adjusting a control gain of the electromagnet until amplitude of vibration is less than a second upper limit value when the amplitude of the vibration is equal to or more than the second upper limit value.

Each of the moving blocks of the plate crossbow correction device includes distance sensors and electromagnets, and plate crossbow is corrected by adjusting electromagnetic force by the electromagnets in accordance with distances to strips. The moving blocks are movable in the horizontal direction and ratios of moving distances of the moving blocks are adjusted to be constant when seen from a central position.

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 bearing block can include a body including an exterior surface and an interior surface defining a central bore of the body. The exterior surface can include a first material, and the interior surface can include a second material, wherein the first material can be different than the second material.