Method for producing hot-dip aluminum-coated steel wire

Abstract

Provided is a method for producing a molten aluminum-plated steel wire in which a steel wire (2) is immersed in a molten aluminum plating bath (1), the resulting molten aluminum-plated steel wire (3) is subsequently pulled up from the molten aluminum plating bath (1) and a stabilizing member (11) is brought into contact with the bath surface (10) of the molten aluminum plating bath (1) and the molten aluminum-plated steel wire (3) at the boundary of the molten aluminum-plated steel wire (3) and the bath surface (10) of the molten aluminum plating bath (1), a nozzle (12) for blowing an inert gas is arranged in a position facing the stabilizing member (11) with the molten aluminum-plated steel wire (3) therebetween, and an inert gas having a temperature of 600-1000° C. is blown from the tip (12a) of the nozzle (12) toward the boundary at a pressure of 0.1-20 kPa.

1 . A method for producing a hot-dip aluminum-coated steel wire by dipping a steel wire in molten aluminum, and then continuously drawing up the steel wire from the molten aluminum, to produce a hot-dip aluminum-coated steel wire, which comprises the steps of:
 dipping a steel wire in molten aluminum; thereafter drawing up a resulting hot-dip aluminum-coated steel wire from the molten aluminum;   contacting a stabilizing member with the surface of the molten aluminum and the hot-dip aluminum-coated steel wire at the boundary between the hot-dip aluminum-coated steel wire and the surface of the molten aluminum;   disposing a nozzle for blowing an inert gas at a place where the nozzle is faced to the stabilizing member through the hot-dip aluminum-coated steel wire; and   blowing the inert gas having a temperature of 600 to 1000° C. from the tip of the nozzle to the above-mentioned boundary at a pressure of 0.1 to 20 kPa.   
     
     
         2 . The method for producing a hot-dip aluminum-coated steel wire according to  claim 1 , wherein the steel wire is a steel wire made of stainless steel or carbon steel. 
     
     
         3 . The method for producing a hot-dip aluminum-coated steel wire according to  claim 1 , wherein the temperature of the molten aluminum is adjusted to a temperature 15° C. or more higher than the melting point of the molten aluminum. 
     
     
         4 . The method for producing a hot-dip aluminum-coated steel wire according to  claim 2 , wherein the temperature of the molten aluminum is adjusted to a temperature 15° C. or more higher than the melting point of the molten aluminum.