C23C2/14

Method for producing molten Al plated steel wire

A method of producing an Al plated steel wire comprises a first step of continuously immersing a material steel wire formed of a steel core into a molten Al plating bath and then withdrawing the material steel wire to a gas phase space. The material steel wire plated with a plating metal is brought into contact with a contact member at the plating bath rising portion to produce the Al plated steel wire, the Al plated steel wire having an average diameter D.sub.A (mm) and a minimum diameter D.sub.MIN (mm) in the longitudinal direction of the wire satisfying the following expression (1)
(D.sub.AD.sub.MIN)/D.sub.A0.10,(1).
The Al plated steel wire is then wound.

ZINC ALLOY-PLATED STEEL HAVING EXCELLENT CORROSION RESISTANCE AND SURFACE SMOOTHNESS, AND MANUFACTURING METHOD THEREFOR
20210010106 · 2021-01-14 ·

Provided is a plated steel to be used for automobiles, electric home appliances, building materials and the like and, more specifically, to a zinc alloy-plated steel having excellent corrosion resistance and surface smoothness, and a method for manufacturing the same.

ZINC ALLOY PLATED STEEL MATERIAL HAVING EXCELLENT CORROSION RESISTANCE AFTER BEING PROCESSED AND METHOD FOR MANUFACTURING SAME
20210002751 · 2021-01-07 ·

Provided is a plated steel material which can be used for an automobile, a household appliance, a building material, and the like and, more particularly, to a zinc alloy plated steel material having excellent corrosion resistance after being processed and a method for manufacturing the same.

ZINC ALLOY PLATED STEEL MATERIAL HAVING EXCELLENT CORROSION RESISTANCE AFTER BEING PROCESSED AND METHOD FOR MANUFACTURING SAME
20210002751 · 2021-01-07 ·

Provided is a plated steel material which can be used for an automobile, a household appliance, a building material, and the like and, more particularly, to a zinc alloy plated steel material having excellent corrosion resistance after being processed and a method for manufacturing the same.

Metal strip stabilization apparatus and method for manufacturing hot-dip coated metal strip using same

A metal strip stabilization apparatus includes: a displacement measurement unit configured to measure a displacement of a metal strip during traveling in a non-contact manner; a control unit configured to generate a vibration suppression signal and a position correction signal based on a measurement signal; and an electromagnet unit including: a vibration suppression coil configured to generate a first magnetic force based on the vibration suppression signal; a position correction coil configured to generate a second magnetic force based on the position correction signal; and a core about which the vibration suppression coil and the position correction coil are wound concentrically, the core leading the first magnetic force.

Aluminum-based alloy plated steel sheet having excellent processing part corrosion resistance
10837094 · 2020-11-17 · ·

Provided is an aluminum-based alloy plate steel sheet, which comprises a base steel sheet, an interfacial alloy layer, and an aluminum-based plated layer comprising a MgSi-based alloy phase, and in which b/a is 1-5 when the area fraction of the MgSi-based alloy phase contained in the aluminum-based plated layer is a and the area fraction of the MgSi-based alloy phase contained in the region of the lower 20% in the thickness direction of the aluminum-based plated layer is b.

METHOD FOR PRODUCING GALVANNEALED STEEL SHEET, AND CONTINUOUS HOT DIP GALVANIZING APPARATUS

Provided is a method for producing a galvannealed steel sheet. When the steel sheet passing through the soaking zone is a type of steel containing 0.2 mass % or more of Si, both dry gas and humidified gas are supplied to the soaking zone, where the humidified gas is supplied only from the humidified gas supply port positioned in a latter part of the soaking zone among a plurality of humidified gas supply ports, where the latter part of the soaking zone is determined considering a sheet passing speed V and a target temperature T on the exit side of the soaking zone.

Activated aluminum fuel
10745789 · 2020-08-18 · ·

Aluminum can be used as a fuel source when reacted with water if its native surrounding oxide coating is penetrated with a gallium-based eutectic. When discrete aluminum objects are treated in a heated bath of eutectic, the eutectic penetrates the oxide coating. After the aluminum objects are treated, the aluminum objects can be reacted in a reactor to produce hydrogen which can, for example, react with oxygen in a fuel cell to produce electricity, for use in a variety of applications.

Activated aluminum fuel
10745789 · 2020-08-18 · ·

Aluminum can be used as a fuel source when reacted with water if its native surrounding oxide coating is penetrated with a gallium-based eutectic. When discrete aluminum objects are treated in a heated bath of eutectic, the eutectic penetrates the oxide coating. After the aluminum objects are treated, the aluminum objects can be reacted in a reactor to produce hydrogen which can, for example, react with oxygen in a fuel cell to produce electricity, for use in a variety of applications.

Continuous hot-dip metal plating device and continuous hot-dip metal plating method

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.