Method for producing molten Al plated steel wire

Patent metadata

Field	Value
Publication number	US-10957461-B2
Application number	US-201816214194-A
Country	US
Kind code	B2
Filing date	Dec 10, 2018
Priority date	Jul 3, 2014
Publication date	Mar 23, 2021
Grant date	Mar 23, 2021

Abstract

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 A (mm) and a minimum diameter D MIN (mm) in the longitudinal direction of the wire satisfying the following expression (1)

( D A −D MIN )/ D A ≤0.10,  (1).

The Al plated steel wire is then wound.

First claim

The invention claimed is:

1. A method of producing an Al plated steel wire comprises:
a 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;
a step of bringing the material steel wire plated with a plating metal 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 A (mm) and a minimum diameter D MIN (mm) in the longitudinal direction of the Al plated steel wire satisfying the following expression (1)
( D A −D MIN )/ D A ≤0.10  (1);

and
a step of winding the Al plated steel wire.

2. The method of producing a molten Al plated steel wire according to claim 1 , wherein the material steel wire has a diameter of from 0.05 to 0.50 mm.

3. The method of producing a molten Al plated steel wire according to claim 2 , wherein the material steel wire has on the surface thereof a Zn plated layer or an Ni plated layer having an average thickness of 5 μm or less.

4. The method of producing a molten Al plated steel wire according to claim 1 , wherein the material steel wire has on the surface thereof a Zn plated layer or an Ni plated layer having an average thickness of 5 μm or less.

Assignees

• Nisshin Steel Co Ltd
• Nippon Steel Nisshin Co Ltd

Inventors

• Kamoshida Shinichi
• Miono Tadaaki
• Hattori Yasunori
• Shimizu Takeshi

Classifications

• C23C2/12 Primary

  Aluminium or alloys based thereon · CPC title

• C23C2/38

  Wires; Tubes · CPC title

• D07B2205/3067

  Copper (Cu) · CPC title

• D07B1/147

  comprising electric conductors or elements for information transfer (D07B1/145 takes precedence) · CPC title

• H01B5/08 Primary

  Several wires or the like stranded in the form of a rope · CPC title