Patent classifications
C23C2/00344
Device for treating a metal strip with a liquid coating material
A device for processing a metal strip with a liquid coating material is disclosed. Above a coating tank filled with coating material, the device has a blower having an air outlet slot for blowing liquid parts of the coating off of the metal strip. Arranged above the blower is an electromagnetic stabilizer for stabilizing the metal strip by electromagnetic forces after the exiting of the coating tank and the blower. 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 for an operating person, the stabilizer is arranged above the blower in such a way that the distance d between the line of action of the maximum force of the stabilizer on the metal strip and on the air outlet gap of the blower is limited to a range of 100-1200 mm.
Method and device for coating a metal strip
A method and a device for coating a metal strip with a coating material that is still liquid at first. During the coating, the coated metal strip runs through a roller pair. One of the rollers of the roller pair can be adjusted toward the other as a correction roller in order to eliminate a possible curvature of the metal strip. Then the metal strip runs through a blow-off apparatus for blowing off surplus coating. In order to prevent an uneven thickness distribution of the coating on the metal strip even when the correction roller of the roller pair has been adjusted, the actual position of the metal strip is controlled to a specified setpoint center position in the slot of the blow-off apparatus by an appropriate movement of the blow-off apparatus.
PLATED STEEL SHEET HAVING FINE AND EVEN PLATING STRUCTURE AND PLATED STEEL SHEET MANUFACTURING METHOD
Provided is a plated steel sheet having an excellent quality with fine and even plating texture, the plated steel sheet including a base steel sheet and a Zn plating layer formed on the base steel sheet, wherein a Zn crystal in the plating layer has a size of 5 m or less.
SCUM REMOVAL DEVICE AND SCUM REMOVAL METHOD
A scum removal device according to the present disclosure includes a snout, a discharge section, and a suction section. The discharge section is disposed on an extension line of a steel strip entry position on a hot-dip plating bath surface at one side in a steel strip width direction, and discharges a liquid metal for hot dipping. The suction section is disposed on the extension line on the hot-dip plating bath surface at another side in the steel strip width direction, and sucks in the liquid metal for hot dipping. The suction section is configured by a first suction portion and a second suction portion. The first suction portion and the second suction portion are disposed separated from each other at each side of the steel strip width direction extension line of the steel strip entry position on the hot-dip plating bath surface.
METHOD AND DEVICE FOR COATING A METAL STRIP WITH A COATING MATERIAL WHICH IS AT FIRST STILL LIQUID
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.
Refractory bearing
At least one bearing insert is secured within a metallic housing to form a wear resistant bearing. In operation, the bearing insert engages a journal and provides a wear-resistant surface. The housing defines a cavity for receiving the bearing insert. The cavity preferably expands radially so that the bearing insert remains secured in the cavity. The bearing insert can comprise a refractory ceramic. The bearing insert is secured within the cavity by any suitable means, such as thermal shrink-fit. A thin layer of sacrificial metal protects the bearing insert during initial start-up. The sacrificial metal wears to expose the bearing insert. Further wear exposes a larger area of the refractory bearing insert. A second bearing insert can be disposed opposite to the first so that rotating the housing can expose the second bearing insert to the journal.
HOT-DIP GALVANIZED LAYER THICKNESS CONTROL SYSTEM AND METHOD FOR CONTINUOUS THICKNESS-VARYING STRIP MATERIAL
Disclosed are a system and method for controlling a thickness of a hot-dip galvanized coating on a strip material with a continuously varying thickness.
Coating weight control apparatus and coating weight control method
An apparatus for controlling coating weight coated on a strip by using an air knife disposed in a travelling direction of the strip in a continuous plating process in which the strip is dipped in a molten metal pot and is coated includes: a prediction model unit including a prediction model in which a neural network is trained with accumulated operation conditions; and an optimum air knife condition calculation unit configured to derive an absolute value of at least one of an air knife gap and an air knife pressure by using the prediction model based on an input operation condition.
METHOD OF MANUFACTURING A TROUGH USED IN GALVANIZATION OF WORKPIECES
A method including manufacturing a trough. The trough includes connected walls configured to hold a molten galvanization material within the trough. The trough is further manufactured to include a first end including a first gate system. The trough is further manufactured to include a second end, opposing the first end, including a second gate system. The trough is further manufactured to include a roller connected, inside the trough, to opposing inside walls of the connected walls. The trough is further manufactured to include a sump disposed within the trough. The trough is further manufactured to include a side braces connected to an outside wall of the connected walls. The side braces extend outwardly from the outside wall. The trough is further manufactured to include an inlet connected to the sump, the inlet disposed at a perpendicular angle relative to the outside wall and further disposed between the side braces.
Metallic flat product which is subjected to surface finishing by hot-dip coating and which is preferably composed of steel
A metallic flat product is disclosed which is subjected to surface finishing by hot-dip coating and which is preferably composed of steel. The metallic flat product includes a metallic alloy layer (11) and a metallic surface layer (12), which metallic alloy layer and metallic surface layer differ from one another in terms of their chemical composition. The two layers (11, 12) are produced in a one process step and define a continuous transition region (13) in which a mixture of the two different chemical compositions is present. The metallic alloy layer (11) has a thickness of less than 8 m, preferably less than 6 m, and the surface layer (12) is formed from aluminum or zinc. The flat product has an improved coating, by means of which the flat product more effectively satisfies the requirements with regard to good deformability and has good anti-corrosion protection.