TW201809362A - Method for manufacturing molten aluminum plated steel wire and device for introducing steel wire for molten aluminum plating - Google Patents

Method for manufacturing molten aluminum plated steel wire and device for introducing steel wire for molten aluminum plating Download PDF

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TW201809362A
TW201809362A TW106107915A TW106107915A TW201809362A TW 201809362 A TW201809362 A TW 201809362A TW 106107915 A TW106107915 A TW 106107915A TW 106107915 A TW106107915 A TW 106107915A TW 201809362 A TW201809362 A TW 201809362A
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steel wire
molten aluminum
plating solution
aluminum plating
tubular body
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TW106107915A
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Chinese (zh)
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TWI708871B (en
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三尾野忠昭
鴨志田真一
服部保德
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日新製鋼股份有限公司
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    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/34Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
    • C23C2/36Elongated material
    • C23C2/38Wires; Tubes
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/003Apparatus
    • C23C2/0034Details related to elements immersed in bath
    • C23C2/00348Fixed work supports or guides
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/12Aluminium or alloys based thereon

Abstract

To provide a method for manufacturing a molten aluminum plated steel wire, capable of efficiently manufacturing the molten aluminum plated steel wire having a plating film formed on the entire surface. A method for manufacturing a molten aluminum plated steel wire comprises: wiring a steel wire 2 in a steel wire introduction device 7 in the state of dipping a dipping region 9a of the steel wire introduction device 7: having an open hole 8 for wiring the steel wire 2 into the inside in a dipping portion 6 having the steel wire 2 dipped in a molten aluminum plating bath 1; consisting of a tubular body 9 having a full length of 10-1000 mm; having the dipping region 9a for dipping the tubular body within a length of 2-400 mm in the molten aluminum plating bath 1 in the longitudinal direction of the tubular body 9 from an end portion of one end of the tubular body 9; and having 3-4000 of a ratio of the area of the opening of the open hole 8 to the area of the cross section of the steel wire 2 [an area of the opening of the open hole 8 of the tubular body 9/the area of the cross section of the steel wire 2] in the molten aluminum plating bath 1; and dipping the steel wire 2 in the molten aluminum plating bath 1.

Description

熔融鋁鍍鋼線的製造方法 Method for manufacturing molten aluminum-plated steel wire

本發明係有關於一種熔融鋁鍍鋼線的製造方法。更詳細地說明之,本發明係有關於一種例如可適合用於汽車的線束等之熔融鋁鍍鋼線的製造方法及一種可適合地用於該熔融鋁鍍鋼線的製造方法的熔融鋁電鍍用鋼線導入裝置。 The invention relates to a method for manufacturing a molten aluminum-plated steel wire. To explain in more detail, the present invention relates to a method for manufacturing a molten aluminum-plated steel wire suitable for use in, for example, a wiring harness for automobiles, and a molten aluminum plating suitable for a method for manufacturing the molten aluminum-plated steel wire. Introduce the device with steel wire.

此外,在本專利說明書,熔融鋁鍍鋼線意指使鋼線浸漬於熔融鋁電鍍液後,從該熔融鋁電鍍液連續地拉升鋼線,藉此,被實施鋁電鍍的鋼線。又,熔融鋁電鍍液意指熔融之鋁的電鍍液。 In addition, in this patent specification, a molten aluminum-plated steel wire means a steel wire that has been subjected to aluminum plating by continuously drawing the steel wire from the molten aluminum plating solution after immersing the steel wire in the molten aluminum plating solution. The molten aluminum plating solution means a molten aluminum plating solution.

在汽車之線束等所使用的電線,以往使用銅線。可是,近年來,替代銅線,作為可在不損害導電性下設法輕量化的電線,期望開發由是比銅線更輕之鋁線與強度比鋁更高的金屬線所相鉸之複合電線。作為強度比鋁更高的金屬線,提議對鋼芯線實施熔融鋁鍍之熔融A1鋁鍍鋼線(例如參照專利文獻1之請求項1及段落[0004])。 Conventionally, copper wires have been used for electric wires used in automobile wiring harnesses. However, in recent years, instead of copper wires, it has been desired to develop composite wires composed of aluminum wires that are lighter than copper wires and metal wires that are stronger than aluminum, as electric wires that can be made lighter without impairing conductivity. . As a metal wire having higher strength than aluminum, a molten A1 aluminum-plated steel wire in which molten aluminum is plated on a steel core wire is proposed (for example, refer to claim 1 and paragraph [0004] of Patent Document 1).

該熔融A1鋁鍍鋼線係根據在使由鋼芯線所構成之原料鋼線或在鋼芯線之表面具有鍍鋅層或鍍鎳層的電鍍鋼線所構成之原料鋼線浸漬於熔融鋁電鍍液後,連續地拉升至氣相空間的方法所製造(例如參照專利文獻1之段落[0024])。 This molten A1 aluminum-plated steel wire is impregnated with a molten aluminum plating solution based on a raw steel wire composed of a raw steel wire composed of a steel core wire or an electroplated steel wire having a zinc plating layer or a nickel plating layer on the surface of the steel core wire. Then, it is manufactured by a method of continuously drawing up to the gas phase space (for example, refer to paragraph [0024] of Patent Document 1).

【先行專利文獻】 [Leading Patent Literature]

【專利文獻】 [Patent Literature]

[專利文獻1]特開2014-185355號公報 [Patent Document 1] JP 2014-185355

可是,在該方法,在原料鋼線是鋼芯線或在芯線之表面具有鍍鎳層的電鍍鋼線時,在使這些鋼線浸漬於熔融鋁電鍍液後,連續地拉升至氣相空間時,可能發生在所得之熔融鋁鍍鋼線的表面未形成鍍被膜之處。 However, in this method, when the raw steel wire is a steel core wire or an electroplated steel wire having a nickel plating layer on the surface of the core wire, after immersing these steel wires in a molten aluminum plating solution, the steel wire is continuously pulled up to the gas phase space. , May occur where the surface of the obtained molten aluminum-plated steel wire does not form a plating film.

本發明係鑑於該習知技術而開發的,其目的在於提供一種可高效率地製造鍍被膜被形成於表面整體之熔融鍍鋁鋼線的製造方法及一種可適合用於該熔融鋁鍍鋼線的製造方法的熔融鋁電鍍用鋼線導入裝置。 The present invention was developed in view of the conventional technology, and an object thereof is to provide a method for manufacturing a molten aluminum-plated steel wire capable of efficiently manufacturing a coating film formed on the entire surface and a molten aluminum-plated steel wire suitable for the manufacturing method. The manufacturing method of the steel wire for molten aluminum electroplating.

本發明係有關於如下: The invention relates to the following:

(1)一種熔融鋁鍍鋼線的製造方法,係使鋼線浸漬於熔融鋁電鍍液後,從該熔融鋁電鍍液連續地拉升鋼線,藉此,製造熔融鋁鍍鋼線的方法,其特徵為:在使鋼線浸漬於熔融鋁電鍍液之鋼線的浸漬部,由具有用以使鋼線配線於內部的貫穿孔,且總長是10~1000mm的管狀體所構成,並從該管狀體之一端的端部沿著該管狀體的長度方向在長度2~400mm的範圍內具有浸漬於熔融鋁電鍍液的浸漬區域,在使貫穿孔之開口部的面積與熔融鋁鍍所使用之鋼線之在橫截面的面積之比[管狀體所具有之貫穿孔之開口部的面積/鋼線之在橫截面的面積]的值是 3~4000之鋼線導入裝置的浸漬區域浸漬於熔融鋁電鍍液之狀態使鋼線配線於鋼線導入裝置內後,浸漬於熔融鋁電鍍液。 (1) A method for manufacturing a molten aluminum-plated steel wire, which is a method of manufacturing a molten aluminum-plated steel wire by immersing the steel wire in the molten aluminum plating solution and continuously pulling the steel wire from the molten aluminum plating solution. It is characterized in that the immersion part of the steel wire in which the steel wire is immersed in the molten aluminum plating solution is composed of a tubular body having a through hole for wiring the steel wire inside and having a total length of 10 to 1000 mm, and The end of one end of the tubular body has an immersion area immersed in the molten aluminum plating solution in a length range of 2 to 400 mm along the longitudinal direction of the tubular body. The ratio of the area of the steel wire in the cross section [the area of the opening portion of the through-hole of the tubular body / the area of the steel wire in the cross section] is The immersion area of the steel wire introduction device of 3 to 4000 is immersed in the molten aluminum plating solution, and the steel wire is wired in the steel wire introduction device, and then immersed in the molten aluminum plating solution.

(2)如該(1)項所記載之熔融鋁鍍鋼線的製造方法,其中鋼線係由碳鋼或不銹鋼所構成之鋼線。 (2) The method for producing a molten aluminum-plated steel wire according to the item (1), wherein the steel wire is a steel wire composed of carbon steel or stainless steel.

(3)一種熔融鋁電鍍用鋼線導入裝置,係在使鋼線浸漬於熔融鋁電鍍液後,從該熔融鋁電鍍液連續地拉升鋼線,藉此,製造熔融鋁鍍鋼線時,在使鋼線浸漬於熔融鋁電鍍液之鋼線的浸漬部所使用之鋼線導入裝置,其特徵為:由具有用以使鋼線貫穿於內部的貫穿孔,且總長是10~1000mm的管狀體所構成,並從該管狀體之一端的端部沿著該管狀體的長度方向在長度2~400mm的範圍內具有浸漬於熔融鋁電鍍液的浸漬區域,貫穿孔之開口部的面積與在熔融鋁鍍所使用之鋼線之在橫截面的面積之比[管狀體所具有之貫穿孔之開口部的面積/鋼線之在橫截面的面積]的值是3~4000。 (3) A steel wire introduction device for molten aluminum electroplating, in which a steel wire is continuously dipped from the molten aluminum electroplating solution after the steel wire is immersed in the molten aluminum electroplating solution, thereby manufacturing a molten aluminum plated steel wire, The steel wire introduction device used in the immersion part of the steel wire for immersing the steel wire in the molten aluminum electroplating solution is characterized by having a tubular shape having a through hole for allowing the steel wire to pass through the inside and a total length of 10 to 1000 mm. It has an impregnated area immersed in a molten aluminum plating solution in a length ranging from 2 to 400 mm from an end of one end of the tubular body along the longitudinal direction of the tubular body. The value of the cross-sectional area ratio of the steel wire used for the molten aluminum plating [the area of the opening portion of the through-hole in the tubular body / the cross-sectional area of the steel wire] is 3 to 4000.

若依據本發明之熔融鋁鍍鋼線的製造方法及熔融鋁電鍍用鋼線導入裝置,具有可高效率地製造鍍被膜被形成於表面整體之熔融鍍鋁鋼線之優異的效果。 According to the method for manufacturing a molten aluminum plated steel wire and the steel wire introduction device for molten aluminum electroplating according to the present invention, there is an excellent effect that a molten aluminum plated steel wire having a plating film formed on the entire surface can be efficiently produced.

1‧‧‧熔融鋁電鍍液 1‧‧‧ molten aluminum plating solution

2‧‧‧鋼線 2‧‧‧steel wire

3‧‧‧熔融鋁鍍鋼線 3‧‧‧ Molten Aluminum Plated Steel Wire

4‧‧‧送出裝置 4‧‧‧ delivery device

5‧‧‧電鍍液槽 5‧‧‧Plating bath

6‧‧‧鋼線之浸漬部 6‧‧‧Immersion of steel wire

7‧‧‧鋼線導入裝置 7‧‧‧steel wire introduction device

8‧‧‧貫穿孔 8‧‧‧through hole

9‧‧‧管狀體 9‧‧‧ Tubular body

9a‧‧‧管狀體之浸漬區域 9a‧‧‧ Impregnation area of tubular body

9b‧‧‧管狀體之導入口 9b‧‧‧ entrance of tubular body

9c‧‧‧在管狀體之導入口的開口部 9c‧‧‧ at the opening of the inlet of the tubular body

9d‧‧‧管狀體之排出口 9d‧‧‧Tube outlet

9e‧‧‧在管狀體之排出口的開口部 9e‧‧‧ opening at the outlet of the tubular body

10‧‧‧熔融鋁電鍍液之液面 10‧‧‧ Level of molten aluminum plating solution

11‧‧‧穩定化構件 11‧‧‧ stabilizing component

11a‧‧‧穩定化構件之耐熱布材 11a‧‧‧ Stabilized heat-resistant cloth material

12‧‧‧噴嘴 12‧‧‧ Nozzle

12a‧‧‧噴嘴之前端 12a‧‧‧Front end of nozzle

13‧‧‧惰性氣體供給裝置 13‧‧‧Inert gas supply device

14‧‧‧配管 14‧‧‧Piping

15‧‧‧冷卻裝置 15‧‧‧cooling device

16‧‧‧捲繞裝置 16‧‧‧ Winding device

17‧‧‧加熱裝置 17‧‧‧Heating device

18‧‧‧鍍被膜 18‧‧‧ coated film

19‧‧‧配線式鋼線徑測量裝置 19‧‧‧ Wiring steel wire diameter measuring device

19a‧‧‧配線式鋼線徑測量裝置之發光部 19a‧‧‧Light-emitting part of wire type steel wire diameter measuring device

19b‧‧‧配線式鋼線徑測量裝置之受光部 19b‧‧‧Light receiving section of wire type steel wire diameter measuring device

19c‧‧‧配線式鋼線徑測量裝置之滑輪 19c‧‧‧ pulley of wire type steel wire diameter measuring device

19d‧‧‧配線式鋼線徑測量裝置之滑輪 19d‧‧‧ pulley of wire type steel wire diameter measuring device

第1圖係表示本發明之熔融鋁鍍鋼線的製造方法之一實施形態的示意說明圖。 FIG. 1 is a schematic explanatory diagram showing an embodiment of a method for manufacturing a molten aluminum-plated steel wire according to the present invention.

第2圖係表示本發明之熔融鍍鋁用鋼線導入裝置之一實施形態的示意剖面圖。 Fig. 2 is a schematic sectional view showing an embodiment of the steel wire introduction device for hot-dip aluminizing of the present invention.

第3圖係表示本發明之熔融鋁鍍鋼線的製造方法之其他的一實施形態的示意說明圖。 Fig. 3 is a schematic explanatory view showing another embodiment of the method for manufacturing a molten aluminum-plated steel wire according to the present invention.

第4圖係在本發明之熔融鋁鍍鋼線的製造方法,從熔融鋁電鍍液拉升鋼線時之鋼線與熔融鋁電鍍液的液面之邊界部的示意說明圖。 FIG. 4 is a schematic explanatory diagram of a boundary portion between the steel wire and the liquid surface of the molten aluminum plating solution when the steel wire is pulled up from the molten aluminum plating solution in the method for manufacturing a molten aluminum plating steel wire of the present invention.

第5圖係表示測量在各實施例及各比較例所得之熔融鋁鍍鋼線的鍍被膜之平均厚度的方法之一實施形態的示意說明圖。 FIG. 5 is a schematic explanatory diagram showing one embodiment of a method of measuring the average thickness of the coating film of the molten aluminum-plated steel wire obtained in each of the Examples and Comparative Examples.

本發明之熔融鋁鍍鋼線的製造方法係如上述所示,使鋼線浸漬於熔融鋁電鍍液後,從該熔融鋁電鍍液連續地拉升鋼線,藉此,製造熔融鋁鍍鋼線的方法,其特徵為:在使鋼線浸漬於熔融鋁電鍍液之鋼線的浸漬部,由具有用以使鋼線配線於內部的貫穿孔,且總長是10~1000mm的管狀體所構成,並從該管狀體之一端的端部沿著該管狀體的長度方向在長度2~400mm的範圍內具有浸漬於熔融鋁電鍍液的浸漬區域,在使貫穿孔之開口部的面積與熔融鋁鍍所使用之鋼線之在橫截面的面積之比[管狀體所具有之貫穿孔之開口部的面積/鋼線之在橫截面的面積]的值是3~4000之鋼線導入裝置的浸漬區域浸漬於熔融鋁電鍍液之狀態使鋼線配線於鋼線導入裝置內後,使鋼線浸漬於熔融鋁電鍍液。 The method for manufacturing a molten aluminum-plated steel wire of the present invention is as described above. After the steel wire is immersed in a molten aluminum plating solution, the steel wire is continuously pulled up from the molten aluminum plating solution, thereby manufacturing a molten aluminum-plated steel wire. The method is characterized in that the immersion part of the steel wire in which the steel wire is immersed in the molten aluminum electroplating solution is composed of a tubular body having a through hole for wiring the steel wire inside and a total length of 10 to 1000 mm, In addition, from the end of one end of the tubular body along the length direction of the tubular body, there is an immersion area immersed in a molten aluminum plating solution in a range of 2 to 400 mm in length. The ratio of the area of the steel wire used in the cross section [the area of the opening of the through-hole of the tubular body / the area of the steel wire in the cross section] is a immersion area of the steel wire introduction device of 3 to 4000 After the steel wire is wired in the steel wire introduction device in a state of being immersed in the molten aluminum plating solution, the steel wire is immersed in the molten aluminum plating solution.

若依據本發明之熔融鋁鍍鋼線的製造方法,因為採用上述之操作,所以可高效率地製造鍍被膜被形成於表面整體的熔融鋁鍍鋼線。 According to the method for manufacturing a molten aluminum-plated steel wire according to the present invention, the above-mentioned operation is adopted, so that the molten aluminum-plated steel wire with a plating film formed on the entire surface can be manufactured efficiently.

又,在使用本發明之熔融鋁電鍍用鋼線導入裝 置,製造熔融鋁鍍鋼線的情況,在鋼線從氣相空間被浸漬於熔融鋁電鍍液處,抑制在熔融鋁電鍍液之表面所產生之氧化膜伴隨鋼線被導往熔融鋁電鍍液中。藉此,因為鋼線與熔融鋁電鍍液的反應性提高,所以可抑制在熔融鋁電鍍液之表面未形成鍍被膜之處的發生。 In addition, the steel wire for molten aluminum electroplating using the present invention In the case of manufacturing molten aluminum plated steel wire, the steel wire is immersed in the molten aluminum plating solution from the vapor phase space, and an oxide film generated on the surface of the molten aluminum plating solution is suppressed, and the steel wire is guided to the molten aluminum plating solution. in. Accordingly, since the reactivity between the steel wire and the molten aluminum plating solution is improved, occurrence of a place where a plating film is not formed on the surface of the molten aluminum plating solution can be suppressed.

在以下,根據圖面,說明本發明之熔融鋁鍍鋼線的製造方法,但是本發明係不是被限定為僅在該圖面所記載之實施形態。 Hereinafter, a method for manufacturing a molten aluminum-plated steel wire according to the present invention will be described with reference to the drawings. However, the present invention is not limited to the embodiments described only in the drawings.

第1圖係表示本發明之熔融鋁鍍鋼線的製造方法之一實施形態的示意說明圖。 FIG. 1 is a schematic explanatory diagram showing an embodiment of a method for manufacturing a molten aluminum-plated steel wire according to the present invention.

在本發明之熔融鋁鍍鋼線的製造方法,在使鋼線2浸漬於熔融鋁電鍍液1後,從該熔融鋁電鍍液1連續地拉升鋼線2,藉此,製造熔融鋁鍍鋼線3。 In the method for manufacturing a molten aluminum-plated steel wire of the present invention, after the steel wire 2 is immersed in the molten aluminum plating solution 1, the steel wire 2 is continuously pulled up from the molten aluminum plating solution 1, thereby manufacturing a molten aluminum-plated steel. Line 3.

作為構成鋼線2的鋼材,列舉例如不銹鋼、碳鋼等,但是本發明係不是被限定為僅該舉例表示。 Examples of the steel material constituting the steel wire 2 include stainless steel and carbon steel. However, the present invention is not limited to this example.

不銹鋼係含有10質量%以上之鉻(Cr)的合金鋼。作為不銹鋼,列舉例如JIS G4309所規定之沃斯田鐵系的鋼材、肥粒鐵系的鋼材、麻田散鐵系的鋼材等,但是本發明係不是被限定為僅該舉例表示。作為不銹鋼之具體實例,列舉以SUS301、SUS304等之一般沃斯田鐵相是準穩定的不銹鋼;SUS305、SUS310、SUS316等之穩定沃斯田鐵系不銹鋼;SUS405、SUS410L、SU429、SUS430、SUS434、SUS436、SUS444、SUS447等之肥粒鐵系不銹鋼;SUS403、SUS410、SU416、SUS420、SUS431、SUS440等之麻田散鐵系不銹鋼等 為首,被分類為SUS200序號之鉻-鎳-錳系不銹鋼等,但是本發明係不是被限定為僅該舉例表示。 The stainless steel is an alloy steel containing 10% by mass or more of chromium (Cr). Examples of the stainless steel include a Vosstian iron-based steel material, a ferrous-iron-based steel material, and a Masada loose-iron steel material as specified in JIS G4309. However, the present invention is not limited to this example. As specific examples of stainless steel, the general Vosstian iron phases such as SUS301 and SUS304 are quasi-stable stainless steels; the stable Vosstian iron series stainless steels such as SUS305, SUS310, and SUS316; SUS405, SUS410L, SU429, SUS430, SUS434, SUS436, SUS444, SUS447 and other ferrous iron-based stainless steel; SUS403, SUS410, SU416, SUS420, SUS431, SUS440 and other loose iron-based stainless steel For example, chromium-nickel-manganese-based stainless steels classified as SUS200 or the like are not limited to the present invention.

碳鋼係係含有0.02質量%以上之碳(C)的鋼材。作為碳鋼,列舉例如JIS G3506之硬鋼線材的規格所規定之鋼材、JIS G3505之軟鋼線材的規格所規定之鋼材等,但是本發明係不是被限定為僅該舉例表示。作為碳鋼之具體實例,列舉硬鋼、軟鋼等,但是本發明係不是被限定為僅該舉例表示。 The carbon steel is a steel containing carbon (C) in an amount of 0.02% by mass or more. Examples of the carbon steel include steels specified in the specifications of the hard steel wire of JIS G3506 and steels specified by the specifications of the soft steel wire of JIS G3505. However, the present invention is not limited to these examples. Specific examples of carbon steel include hard steel, soft steel, and the like, but the present invention is not limited to this example.

在該鋼材之中,從提高熔融鍍鋁鋼線3之拉伸強度的觀點,不銹鋼及碳鋼較佳,不銹鋼更佳。 Among these steel materials, stainless steel and carbon steel are preferable, and stainless steel is more preferable from the viewpoint of improving the tensile strength of the hot-dip aluminized steel wire 3.

鋼線2之直徑係無特別限定,因應於熔融鍍鋁鋼線3之用途適當地調整較佳。例如,在將熔融鍍鋁鋼線3用於汽車之線束等之用途的情況,鋼線2之直徑係一般是約0.05~0.5mm較佳。 The diameter of the steel wire 2 is not particularly limited, and it is preferably adjusted appropriately in accordance with the application of the hot-dip aluminized steel wire 3. For example, in the case where the molten aluminum-plated steel wire 3 is used for a wiring harness of an automobile or the like, the diameter of the steel wire 2 is generally preferably about 0.05 to 0.5 mm.

亦可鋼線2係在被施加熔融鋁鍍之前,被進行脫脂。鋼線2之脫脂係例如,可利用如下之方法等進行:將鋼線2浸漬於鹼性脫脂液後,進行水洗,將附著於鋼線2之鹼性成分中和,再藉水洗進行脫脂的方法;在將鋼線2浸漬於鹼性脫脂液之狀態,藉鋼線2進行通電,藉此,進行電解脫脂的方法等。此外,在該鹼性脫脂液,從提高脫脂力之觀點,亦可含有界面活化劑。 The steel wire 2 may be degreased before being subjected to molten aluminum plating. The degreasing system of the steel wire 2 can be performed, for example, by immersing the steel wire 2 in an alkaline degreasing solution and then washing it with water. The alkaline components adhering to the steel wire 2 are neutralized and then degreased by water washing. Method: A method of electrolytic degreasing and the like by immersing the steel wire 2 in an alkaline degreasing solution, and energizing the steel wire 2. In addition, the alkaline degreasing solution may contain an interfacial activating agent from the viewpoint of improving the degreasing power.

在熔融鍍鋁鋼線3之表面,形成由鋁或鋁合金所構成之鍍被膜(未圖示)。在本發明,因為依此方式將由鋁或鋁合金所構成之鍍被膜形成於熔融鍍鋁鋼線3之表面上,所以熔融鍍鋁鋼線3係在將熔融鍍鋁鋼線3與鋁線束在一起並用於線 束時,在與該鋁線之密接性上優異,在拉伸強度及電阻之老化穩定性上亦優異。 On the surface of the hot-dip aluminized steel wire 3, a plating film (not shown) made of aluminum or an aluminum alloy is formed. In the present invention, since a plating film composed of aluminum or an aluminum alloy is formed on the surface of the hot-dip aluminized steel wire 3 in this way, the hot-dip aluminized steel wire 3 is formed by bonding the hot-dip aluminized steel wire 3 and an aluminum wire harness together. Together and used for line When bundled, it is excellent in adhesion with the aluminum wire, and also excellent in tensile strength and aging stability of electrical resistance.

在第1圖,鋼線2係從送出裝置4所送出,在箭號A方向連續地配線,並被浸漬於電鍍液5內的熔融鋁電鍍液1。 In FIG. 1, the steel wire 2 is fed from the feeding device 4 and is continuously wired in the direction of arrow A, and is immersed in the molten aluminum plating solution 1 in the plating solution 5.

此外,在鋼線2係由碳鋼所構成之鋼線2的情況,因為鋼線2被進行脫脂,亦可能在至進行熔融鋁電鍍之間在鋼線2之表面生銹,所以在從送出裝置4至熔融鋁電鍍液1之間進行鋼線2之脫脂較佳。由碳鋼所構成之鋼線2的脫脂係可根據與該鋼線2之脫脂相同的方法進行。 In addition, in the case where the steel wire 2 is a steel wire 2 composed of carbon steel, because the steel wire 2 is degreased, it may rust on the surface of the steel wire 2 until the molten aluminum plating is performed. It is preferable to degrease the steel wire 2 between the device 4 and the molten aluminum plating solution 1. The degreasing of the steel wire 2 made of carbon steel can be performed by the same method as the degreasing of the steel wire 2.

在熔融鋁電鍍液1,亦可僅使用鋁,亦可根據需要,在不阻礙本發明之目的的範圍內含有其他的元素。作為該其他的元素,列舉例如鎳、鉻、鋅、矽、銅、鐵等,但是本發明係不是被限定為僅該舉例表示。在鋁含有這些其他的元素的情況,可提高鍍被膜之機械性強度,進而,可提高熔融鍍鋁鋼線3之拉伸強度。在該其他的元素中,雖亦與鋼線2之種類相關,但是從抑制在鋼線2所含的鐵與鍍被膜所含的鋁之間產生具有脆性之鐵-鋁合金層的產生,而提高鍍被膜之機械性強度,且降低熔融鋁電鍍液1的熔點,藉此,對鋼線2高效率地進行電鍍之觀點,矽較佳。 In the molten aluminum plating solution 1, only aluminum may be used, and if necessary, other elements may be contained within a range that does not hinder the object of the present invention. Examples of the other elements include nickel, chromium, zinc, silicon, copper, and iron. However, the present invention is not limited to these examples. When aluminum contains these other elements, the mechanical strength of the coating film can be increased, and furthermore, the tensile strength of the molten aluminum-plated steel wire 3 can be improved. Among these other elements, although it is also related to the type of the steel wire 2, it suppresses the generation of a brittle iron-aluminum alloy layer between the iron contained in the steel wire 2 and the aluminum contained in the plating film, and From the viewpoint of improving the mechanical strength of the plating film and lowering the melting point of the molten aluminum plating solution 1, silicon is preferred from the viewpoint of efficiently plating the steel wire 2.

在鍍被膜之該其他的元素之含有率的下限值係0質量%,但是從充分地發現該其他的元素所具有之性質的觀點,係0.3質量%以上較佳,係0.5質量%以上更佳,係1質量%以上愈佳,而從抑制與鋁線之接觸所造成之電位差腐蝕的觀點,係50質量%以下較佳,係20質量%以下更佳,係15質量 %以下愈佳。 The lower limit value of the content of the other element in the plating film is 0% by mass, but from the viewpoint of fully discovering the properties of the other element, it is preferably 0.3% by mass or more, and more preferably 0.5% by mass or more. It is better that it is more than 1% by mass, and from the viewpoint of suppressing the corrosion of the potential difference caused by the contact with the aluminum wire, it is preferably 50% by mass or less, more preferably 20% by mass or less, and 15% by mass % Is better.

此外,在熔融鋁電鍍液1,可能鎳、鉻、鋅、銅、鐵等之元素無法避免地混入。 In addition, in the molten aluminum plating solution 1, elements such as nickel, chromium, zinc, copper, and iron may inevitably be mixed.

在本發明,鋼線2係在配線於在使鋼線2浸漬於熔融鋁電鍍液1之浸漬部6所配設的鋼線導入裝置7內後被浸漬於熔融鋁電鍍液1。因為採用在使鋼線2配線於在使鋼線2浸漬於熔融鋁電鍍液1之浸漬部6所配設的鋼線導入裝置7內後浸漬於熔融鋁電鍍液1的操作,所以可高效率地製造鍍被膜被形成於表面整體的熔融鍍鋁鋼線3。 In the present invention, the steel wire 2 is immersed in the molten aluminum plating solution 1 after being wired in a steel wire introduction device 7 provided in the immersion section 6 of the molten aluminum plating solution 1 to immerse the steel wire 2. The operation of wiring the steel wire 2 in the steel wire introduction device 7 provided in the immersion section 6 of the molten aluminum plating solution 1 by dipping the steel wire 2 into the molten aluminum plating solution 1 is performed, so that high efficiency can be achieved. The hot-dip aluminized steel wire 3 having the plating film formed on the entire surface is manufactured in the ground.

在以下,根據第2圖,說明本發明之鋼線導入裝置7。第2圖係表示第1圖及第3圖所示之本發明的熔融鍍鋁用鋼線導入裝置7之一實施形態的示意剖面圖。 Hereinafter, the steel wire introduction device 7 of the present invention will be described with reference to FIG. 2. Fig. 2 is a schematic cross-sectional view showing one embodiment of the steel wire introduction device 7 for hot-dip aluminizing of the present invention shown in Figs. 1 and 3.

第2圖所示之鋼線導入裝置7係如上述所示,在使鋼線2浸漬於熔融鋁電鍍液1後,從該熔融鋁電鍍液1連續地拉升鋼線2,藉此,製造熔融鋁鍍鋼線3時,在使鋼線2浸漬於熔融鋁電鍍液1之鋼線2的浸漬部6所使用的裝置。 The steel wire introduction device 7 shown in FIG. 2 is manufactured as described above. After the steel wire 2 is immersed in the molten aluminum plating solution 1, the steel wire 2 is continuously pulled up from the molten aluminum plating solution 1. The molten aluminum-plated steel wire 3 is a device used for immersing the steel wire 2 in the immersion part 6 of the steel wire 2 of the molten aluminum plating solution 1.

如第2圖所示,鋼線導入裝置7具有管狀體9,該管狀體9係具有用以在其內部使鋼線2在箭號B方向貫穿的貫穿孔8,且總長L是10~1000mm。鋼線導入裝置7的總長L係從在使浸漬於熔融鋁電鍍液1所需的浸漬區域9a浸漬於熔融鋁電鍍液1時,防止在熔融鋁電鍍液1的液體或在熔融鋁電鍍液1之表面所產生的氧化膜從用以導入鋼線2的導入口9b侵入管狀體9的貫穿孔8內,並高效率地製造鍍被膜被形成於表面整體之熔融鍍鋁鋼線3的觀點,係10mm以上,係30mm以上較佳, 係40mm以上更佳,係50mm以上愈佳,而從使管狀體9縮小,提高作業性,且高效率地製造鍍被膜被形成於表面整體之熔融鍍鋁鋼線3的觀點,係1000mm以下,係800mm以下較佳,係500mm以下更佳,係300mm以下愈佳,係100mm以下最佳。 As shown in FIG. 2, the steel wire introduction device 7 includes a tubular body 9 having a through-hole 8 for allowing the steel wire 2 to penetrate in the direction of the arrow B in the inside thereof, and the total length L is 10 to 1000 mm. . The total length L of the steel wire introduction device 7 is to prevent the liquid in the molten aluminum plating solution 1 or the molten aluminum plating solution 1 from being immersed in the molten aluminum plating solution 1 when the immersion area 9a required for immersion in the molten aluminum plating solution 1 is immersed. The viewpoint that the oxide film generated on the surface penetrates into the through hole 8 of the tubular body 9 from the introduction port 9b for introducing the steel wire 2 and efficiently produces a molten aluminum-plated steel wire 3 with a coating film formed on the entire surface. Above 10mm, preferably above 30mm, It is more preferably 40 mm or more, and more preferably 50 mm or more. From the viewpoint of reducing the tubular body 9 to improve workability and efficiently manufacturing the molten aluminized steel wire 3 with a coating film formed on the entire surface, it is 1000 mm or less. It is preferably less than 800mm, more preferably less than 500mm, more preferably less than 300mm, and most preferably less than 100mm.

鋼線導入裝置7具有管狀體9。管狀體9係從被浸漬於熔融鋁電鍍液1之側之一端的端部沿著長度方向在長度2~400mm的範圍內至第2圖所示的虛擬線P具有用以使管狀體9浸漬於熔融鋁電鍍液1的浸漬區域9a。浸漬區域9a的長度係從避免受到熔融鋁電鍍液1之液面的擺動所造成的影響,並高效率地製造鍍被膜被形成於表面整體之熔融鍍鋁鋼線3的觀點,係2mm以上,係5mm以上較佳,係10mm以上更佳,而從使管狀體9縮小,提高作業性,且高效率地製造鍍被膜被形成於表面整體之熔融鍍鋁鋼線3的觀點,係400mm以下,係100mm以下較佳,係50mm以下更佳,係30mm以下愈佳。 The steel wire introduction device 7 includes a tubular body 9. The tubular body 9 has a length from 2 to 400 mm along the longitudinal direction from an end portion immersed in one end of the side of the molten aluminum plating solution 1 to a virtual line P shown in FIG. In the immersion area 9 a of the molten aluminum plating solution 1. The length of the immersion area 9a is 2 mm or more from the viewpoint of avoiding the influence caused by the swing of the liquid surface of the molten aluminum plating solution 1 and efficiently manufacturing the molten aluminum-plated steel wire 3 having a coating film formed on the entire surface. It is preferably 5 mm or more, and more preferably 10 mm or more. From the viewpoint of reducing the tubular body 9 to improve workability and efficiently manufacturing the molten aluminum-plated steel wire 3 having a coating film formed on the entire surface, it is 400 mm or less. It is preferably 100 mm or less, more preferably 50 mm or less, and more preferably 30 mm or less.

在管狀體9之長度方向,未浸漬於熔融鋁電鍍液1之部分的長度係從熔融鋁電鍍液1之液體或在熔融鋁電鍍液1之表面所產生的氧化膜不會從管狀體9的導入口9b進入管狀體9之貫穿孔8內的觀點,係5mm以上較佳,係10mm以上更佳。 In the length direction of the tubular body 9, the length of the portion that is not immersed in the molten aluminum plating solution 1 is such that the oxide film generated from the liquid of the molten aluminum plating solution 1 or the surface of the molten aluminum plating solution 1 does not pass from the tubular body 9. The viewpoint that the introduction port 9b enters the through hole 8 of the tubular body 9 is preferably 5 mm or more, and more preferably 10 mm or more.

管狀體9所具有的貫穿孔8之開口部的面積與在熔融鋁鍍所使用之鋼線2之橫截面(所謂的鋼線2的截面)的面積之比[管狀體9所具有的貫穿孔8之開口部的面積/鋼線2之橫截面的面積]的值係從將鋼線2圓滑地導入管狀體9之貫穿孔8內,並高效率地製造鍍被膜被形成於表面整體之熔融鍍鋁鋼線3的觀點,係3以上,而從高效率地製造鍍被膜被形成於 表面整體之熔融鍍鋁鋼線3的觀點,係4000以下,係3000以下較佳,係2000以下更佳,係1000以下愈佳。 The ratio of the area of the opening of the through-hole 8 included in the tubular body 9 to the area of the cross-section of the steel wire 2 (so-called cross-section of the steel wire 2) used in the molten aluminum plating [through-hole of the tubular body 9 The value of the area of the opening of 8 / the area of the cross section of the steel wire 2] is obtained by smoothly introducing the steel wire 2 into the through hole 8 of the tubular body 9 and efficiently manufacturing the melting of the plating film formed on the entire surface. From the viewpoint of the aluminized steel wire 3, it is 3 or more, and the plating film is formed from the efficient production of From the viewpoint of the entire surface of the molten aluminized steel wire 3, it is preferably 4,000 or less, preferably 3,000 or less, more preferably 2,000 or less, and more preferably 1,000 or less.

管狀體9所具有的貫穿孔8之開口部的形狀係亦可是圓形,亦可是橢圓形,或者亦可是正方形、長方形等之多角形,本發明係不是被限定為該形狀。又,管狀體9所具有之貫穿孔8的開口部與鋼線2之間隙(clearance)係從避免管狀體9之貫穿孔8的內壁與鋼線2滑動的觀點,係10μm以上,係20μm以上較佳,係50μm以上更佳,係100μm以上愈佳。 The shape of the opening of the through hole 8 of the tubular body 9 may be circular, elliptical, or a polygon such as a square or a rectangle. The present invention is not limited to this shape. The clearance between the opening of the through-hole 8 in the tubular body 9 and the steel wire 2 is 10 μm or more and 20 μm from the viewpoint of preventing the inner wall of the through-hole 8 of the tubular body 9 from sliding with the steel wire 2. The above is preferably 50 μm or more, and more preferably 100 μm or more.

此外,管狀體9所具有之貫穿孔8的開口部係如第2圖所示,在管狀體9的一端用以導入鋼線2之導入口9b的開口部9c、及在該管狀體9的另一端用以排出鋼線2之排出口9d的開口部9e。在開口部9c及開口部9e之面積及形狀係亦可相同,亦可相異,但是從鋼線2在管狀體9的貫穿孔8內被圓滑地配線,避免管狀體9之貫穿孔8的內壁與鋼線2滑動,並高效率地製造鍍被膜被形成於表面整體之熔融鍍鋁鋼線3的觀點,如第2圖所示,在開口部9c及開口部9e之面積及形狀係分別相同較佳。 In addition, as shown in FIG. 2, the opening portion of the through-hole 8 included in the tubular body 9 is an opening portion 9 c at one end of the tubular body 9 for introducing the introduction port 9 b of the steel wire 2, and an opening in the tubular body 9. The other end is an opening 9e for discharging the discharge port 9d of the steel wire 2. The area and shape of the opening 9c and the opening 9e may be the same or different, but the steel wire 2 is smoothly wired in the through-hole 8 of the tubular body 9 to avoid the through-hole 8 of the tubular body 9 The view that the inner wall slides with the steel wire 2 and efficiently produces a molten aluminum-plated steel wire 3 with a plating film formed on the entire surface. As shown in FIG. 2, the area and shape of the opening 9c and the opening 9e are determined. Respectively the same is better.

從高效率地製造鍍被膜被形成於表面整體之熔融鍍鋁鋼線3的觀點,鋼線2係被預熱較佳。作為對鋼線2預熱的方法,列舉例如如第3圖所示,在將鋼線2配線於鋼線導入裝置7內之前,配線於加熱裝置17內的方法等,但是本發明係不是被限定為僅該舉例表示。此外,第3圖係表示本發明之熔融鋁鍍鋼線3的製造方法之其他的一實施形態的示意說明圖。作為加熱裝置17,列舉例如在以下的實施例所記載之加熱 裝置等。 From the viewpoint of efficiently producing a molten aluminum-plated steel wire 3 having a plating film formed on the entire surface, it is preferable that the steel wire 2 is preheated. As a method for preheating the steel wire 2, as shown in FIG. 3, for example, a method of wiring the steel wire 2 in the heating device 17 before wiring the steel wire 2 into the steel wire introduction device 7, but the present invention is not It is limited to this example. FIG. 3 is a schematic explanatory view showing another embodiment of the method for manufacturing the molten aluminum-plated steel wire 3 of the present invention. Examples of the heating device 17 include heating described in the following examples. Device, etc.

作為被導入加熱裝置17的加熱氣體,列舉例如以空氣為首,氮氣、氬氣、氦氣等之惰性氣體等,但是本發明係不是被限定為僅該舉例表示。在這些加熱氣體之中,從使從加熱裝置17之下端所排出的加熱氣體從在該加熱裝置17之下方所配設的鋼線導入裝置7之上端的導入口通氣至其內部,使其內部變成惰性氣體環境,藉此,防止鋼線導入裝置7內之熔融鋁電鍍液1被氧化的觀點,惰性氣體較佳。加熱氣體的溫度係根據所使用之鋼線2的種類及直徑、配線速度、加熱氣體之流量等的條件而異,因為無法一概地決定,所以因應於該條件,調整成對鋼線2適當地加熱較佳。 Examples of the heating gas to be introduced into the heating device 17 include air, inert gases such as nitrogen, argon, and helium. However, the present invention is not limited to these examples. Among these heating gases, the heating gas exhausted from the lower end of the heating device 17 is ventilated from the inlet at the upper end of the steel wire introduction device 7 provided below the heating device 17 to the inside, and the inside thereof The inert gas environment is preferred, and from the viewpoint of preventing the molten aluminum plating solution 1 in the steel wire introduction device 7 from being oxidized, an inert gas is preferred. The temperature of the heating gas varies depending on conditions such as the type and diameter of the steel wire 2 used, the wiring speed, and the flow rate of the heating gas. Since it cannot be determined uniformly, it is adjusted to the steel wire 2 appropriately according to the conditions. Heating is preferred.

鋼線2之預熱溫度係因為根據鋼線2的種類而異,無法一概地決定,但是從高效率地製造鍍被膜被形成於表面整體之熔融鍍鋁鋼線3的觀點,係50℃以上較佳,60℃以上更佳,70℃以上愈佳,其上限係因為根據鋼線2的種類而異,無法一概地決定,但是考慮能源效率,一般係800℃以下較佳。此外,該預熱溫度係根據在以下之實施例所記載的戶法測量時的溫度。 The preheating temperature of the steel wire 2 is different depending on the type of the steel wire 2 and cannot be determined uniformly. However, from the viewpoint of efficiently manufacturing the molten aluminum-plated steel wire 3 having a coating film formed on the entire surface, the temperature is 50 ° C or higher. Preferably, it is more preferably above 60 ° C, and more preferably above 70 ° C. The upper limit is different depending on the type of the steel wire 2 and cannot be determined uniformly, but it is generally better to be below 800 ° C in consideration of energy efficiency. The preheating temperature is a temperature at the time of measurement according to a household method described in the following examples.

其次,如第1圖及第3圖所示,藉由從熔融鋁電鍍液1之液面10在上方向拉升被浸漬於熔融鋁電鍍液1的鋼線2,熔融鋁電鍍液1之鍍被膜被形成於鋼線2之表面,而得到熔融鍍鋁鋼線3。 Next, as shown in FIGS. 1 and 3, the steel wire 2 immersed in the molten aluminum plating solution 1 is pulled upward from the liquid surface 10 of the molten aluminum plating solution 1, and the plating of the molten aluminum plating solution 1 is performed. The coating is formed on the surface of the steel wire 2 to obtain a molten aluminized steel wire 3.

如第4圖所示,在從熔融鋁電鍍液1在箭號C方向(上方向)拉升鋼線2時,在鋼線2與熔融鋁電鍍液1之液面10的邊界部使穩定化構件11與鋼線2接觸較佳。 As shown in FIG. 4, when the steel wire 2 is pulled up from the molten aluminum plating solution 1 in the arrow C direction (upward direction), the boundary portion between the steel wire 2 and the liquid surface 10 of the molten aluminum plating solution 1 is stabilized. The member 11 is preferably in contact with the steel wire 2.

此外,第4圖係在本發明之熔融鋁鍍鋼線的製造方法,從熔融鋁電鍍液1拉升鋼線2時之鋼線3與熔融鋁電鍍液1的液面10之邊界部的示意說明圖。 In addition, FIG. 4 is a schematic diagram of a boundary portion between the steel wire 3 and the liquid surface 10 of the molten aluminum plating solution 1 when the steel wire 2 is pulled up from the molten aluminum plating solution 1 in the method for manufacturing a molten aluminum plating steel wire of the present invention. Illustrating.

作為穩定化構件11,列舉例如耐熱布材11a被捲繞於表面之不銹鋼製的角棒等。作為被捲繞於穩定化構件11的耐熱布材11a,列舉例如含有陶瓷纖維、碳纖維、聚芳醯胺纖維、醯亞胺纖維等之耐熱纖維的織布或不織布等,但是本發明係不是被限定為僅該舉例表示。被捲繞於穩定化構件11的耐熱布材11a係從抑制鋁塊附著於熔融鍍鋁鋼線3之表面的觀點,使在該耐熱布材11a鋁未附著的面(新生面)與鋼線2接觸較佳。 Examples of the stabilizing member 11 include, for example, a stainless steel corner bar made of a heat-resistant cloth material 11a wound on the surface. Examples of the heat-resistant cloth material 11a wound around the stabilizing member 11 include woven or non-woven cloth containing heat-resistant fibers such as ceramic fibers, carbon fibers, polyaramide fibers, and imine fibers. However, the present invention is not limited to It is limited to this example. The heat-resistant cloth material 11a wound around the stabilizing member 11 is to prevent the aluminum block from adhering to the surface of the hot-dip aluminized steel wire 3, and to make the heat-resistant cloth material 11a not adhere to the aluminum surface (new surface) and the steel wire 2 Better contact.

穩定化構件11係同時與熔融鋁電鍍液1之液面10和鋼線2的雙方接觸較佳。在依此方式使穩定化構件11同時與熔融鋁電鍍液1之液面10和鋼線2的雙方接觸的情況,抑制熔融鋁電鍍液1之液面10的脈動,並在使鋼線2與穩定化構件11接觸之狀態拉升時抑制鋼線2發生微小振動,進而,可將熔融鋁電鍍液1的鍍被膜18均勻地形成於鋼線2之表面,此外,在使穩定化構件11與鋼線2接觸時,從抑制鋼線2發生微小振動的觀點,亦可根據需要,為了作成張力作用於鋼線2,而將穩定化構件11輕壓住鋼線2。 The stabilization member 11 is preferably in contact with both the liquid surface 10 of the molten aluminum plating solution 1 and the steel wire 2 at the same time. When the stabilizing member 11 is brought into contact with both the liquid surface 10 of the molten aluminum plating solution 1 and the steel wire 2 in this way, the pulsation of the liquid surface 10 of the molten aluminum plating solution 1 is suppressed, and the steel wire 2 and the When the stabilizing member 11 is pulled in contact with the steel wire 2, it is possible to suppress the micro-vibration of the steel wire 2. Furthermore, the coating film 18 of the molten aluminum plating solution 1 can be uniformly formed on the surface of the steel wire 2. When the steel wire 2 is in contact, from the viewpoint of suppressing the occurrence of minute vibrations in the steel wire 2, the stabilizing member 11 may be lightly pressed against the steel wire 2 in order to generate tension to the steel wire 2 as needed.

在第1圖及第3圖所示的實施形態,設置用以朝向鋼線2與熔融鋁電鍍液1之液面10的邊界部噴射惰性氣體的噴嘴12。又,在第4圖所示之實施形態,噴嘴12之前端12a被配設成對鋼線2與熔融鋁電鍍液1之液面10的邊界部噴射惰性氣體。 In the embodiment shown in Figs. 1 and 3, a nozzle 12 is provided to inject an inert gas toward the boundary between the steel wire 2 and the liquid surface 10 of the molten aluminum plating solution 1. In the embodiment shown in FIG. 4, the front end 12 a of the nozzle 12 is arranged to inject an inert gas at a boundary portion between the steel wire 2 and the liquid surface 10 of the molten aluminum plating solution 1.

在本發明,藉由適當地控制從鋼線2至噴嘴12之 前端12a的距離(最短距離)、從噴嘴12之前端12a所排出之惰性氣體的溫度、噴嘴12之前端12a的內徑、以及從噴嘴12所排出之惰性氣體的體積流量,可高效率地製造外徑係均勻、鋁塊幾乎不附著於表面之熔融鍍鋁鋼線3。 In the present invention, by appropriately controlling the distance from the steel wire 2 to the nozzle 12 The distance (shortest distance) of the front end 12a, the temperature of the inert gas discharged from the front end 12a of the nozzle 12, the inner diameter of the front end 12a of the nozzle 12, and the volume flow rate of the inert gas discharged from the nozzle 12 can be manufactured efficiently. Fused aluminized steel wire 3 with uniform outer diameter and almost no aluminum block attached to the surface.

從鋼線2至噴嘴12之前端12a的距離(最短距離)係從避免與鋼線2之接觸並高效率地製造熔融鍍鋁鋼線3的觀點,係1mm以上較佳,從得到外徑係均勻、鋁塊幾乎不附著於表面之熔融鍍鋁鋼線3的觀點,係50mm以下較佳,40mm以下更佳,30mm以下愈佳,10mm以下最佳。 The distance (shortest distance) from the steel wire 2 to the front end 12a of the nozzle 12 is from the viewpoint of avoiding contact with the steel wire 2 and efficiently manufacturing the molten aluminized steel wire 3, and is preferably 1 mm or more. From the viewpoint of a molten aluminum-plated steel wire 3 that is uniform and has almost no aluminum block attached to the surface, it is preferably 50 mm or less, more preferably 40 mm or less, more preferably 30 mm or less, and most preferably 10 mm or less.

噴嘴12之前端12a的內徑係從藉由將從該噴嘴12之前端12a所排出的惰性氣體準確地噴射至鋼線2與熔融鋁電鍍液1之液面10的邊界部,而高效率地製造熔融鍍鋁鋼線3的觀點,係1mm以上較佳,2mm以上更佳,從得到外徑係均勻、鋁塊幾乎不附著於表面之熔融鍍鋁鋼線3的觀點,係15mm以下較佳,10mm以下更佳,5mm以下愈佳。 The inner diameter of the front end 12a of the nozzle 12 is efficiently ejected from the front end 12a of the nozzle 12 to the boundary portion between the steel wire 2 and the liquid level 10 of the molten aluminum plating solution 1 to efficiently inject the inert gas. From the viewpoint of manufacturing molten aluminized steel wire 3, it is preferably 1 mm or more, and more preferably 2 mm or more. From the viewpoint of obtaining molten aluminized steel wire 3 with uniform outer diameter and almost no aluminum block adhered to the surface, 15 mm or less is preferred. 10mm is better, 5mm is better.

惰性氣體係例如可從第1圖及第3圖所示之惰性氣體供給裝置13經由配管14供給至噴嘴12。此外,亦可為了調整惰性氣體之流量,例如將閥等之流量控制裝置(未圖示)設置於惰性氣體供給裝置13或配管14。 The inert gas system can be supplied from the inert gas supply device 13 shown in FIGS. 1 and 3 to the nozzle 12 through a pipe 14. In addition, in order to adjust the flow rate of the inert gas, for example, a flow rate control device (not shown) such as a valve is provided in the inert gas supply device 13 or the pipe 14.

惰性氣體意指對熔融鋁係惰性的氣體。作為惰性氣體,列舉例如氮氣、氬氣、氦氣等,但是本發明係不是被限定為僅該舉例表示。在惰性氣體之中,氮氣較佳。此外,在惰性氣體,亦可在不阻礙本發明之目的的範圍內,例如包含氧氣、二氧化碳等。 The inert gas means a gas which is inert to the molten aluminum system. Examples of the inert gas include nitrogen, argon, and helium. However, the present invention is not limited to these examples. Among inert gases, nitrogen is preferred. In addition, the inert gas may include oxygen, carbon dioxide, and the like within a range that does not hinder the object of the present invention.

在第4圖,從噴嘴12之前端12a所排出惰性氣體的體積流量係從得到外徑係均勻、鋁塊幾乎不附著於表面之熔融鍍鋁鋼線3的觀點,係2L(公升)/min以上,5L/min以上較佳,10L/min以上更佳,從抑制因熔融鋁電鍍液1的飛散而鋁塊附著於熔融鍍鋁鋼線3之表面的觀點,係200L/min以下較佳,150L/min以下更佳,100L/min以下愈佳。 In Figure 4, the volume flow rate of the inert gas discharged from the front end 12a of the nozzle 12 is 2L (liters) / min from the viewpoint of obtaining a molten aluminized steel wire 3 having a uniform outer diameter system and almost no aluminum block adhered to the surface. Above, 5L / min or more is preferable, and 10L / min or more is more preferable. From the viewpoint of suppressing the adhesion of the aluminum block to the surface of the molten aluminized steel wire 3 due to the scattering of the molten aluminum plating solution 1, it is preferably 200L / min or less. 150L / min or less is better, and 100L / min or less is better.

從噴嘴12之前端12a所排出之惰性氣體的溫度係從得到外徑係均勻、鋁塊幾乎不附著於表面之熔融鍍鋁鋼線3的觀點,係200℃以上較佳,300℃以上更佳,400℃以上愈佳,因為在太高的情況熱效率降低,所以係800℃以下較佳,780℃以下更佳,750℃以下愈佳。此外,從噴嘴12之前端12a所排出之惰性氣體的溫度係在與噴嘴12之前端12a相距2mm之處的惰性氣體中,例如藉由***直徑是1.6mm之護套熱電偶等的測溫用熱電偶來測量時的值。 The temperature of the inert gas discharged from the front end 12a of the nozzle 12 is from the viewpoint of obtaining a molten aluminized steel wire 3 having a uniform outer diameter and almost no aluminum block adhered to the surface, preferably 200 ° C or higher, and more preferably 300 ° C or higher. Above 400 ° C, the better, because the thermal efficiency is too low, so it is better below 800 ° C, more preferably below 780 ° C, and even better below 750 ° C. In addition, the temperature of the inert gas discharged from the front end 12a of the nozzle 12 is in an inert gas at a distance of 2 mm from the front end 12a of the nozzle 12, for example, by inserting a sheathed thermocouple with a diameter of 1.6 mm for temperature measurement. Thermocouple to measure the value.

從熔融鋁電鍍液1之液面10拉升熔融鍍鋁鋼線3時的拉升速度係未特別限定,藉由適當地調整該拉升速度,因為可調整在熔融鍍鋁鋼線3之表面所存在之鍍被膜18的平均厚度,因應於該鍍被膜18的平均厚度適當地調整較佳。 The pulling speed at the time of pulling the hot-dip aluminized steel wire 3 from the liquid surface 10 of the hot-dip aluminum plating solution 1 is not particularly limited. The pull-up speed is appropriately adjusted because it can be adjusted on the surface of the hot-dip aluminum-plated steel wire 3 The average thickness of the existing plating film 18 is preferably adjusted appropriately in accordance with the average thickness of the plating film 18.

若依據本發明,即使是將該拉升速度設定成200m/min以上之高速的情況,亦可得到外徑係均勻、鍍被膜18被形成於表面整體之熔融鍍鋁鋼線3。因此,本發明之熔融鋁鍍鋼線的製造方法係因為可高效率地製造鍍被膜18被形成於表面整體之熔融鍍鋁鋼線3,所以在熔融鍍鋁鋼線3之工業上的生產力優異。此外,熔融鍍鋁鋼線3的拉升速度係未特別 限定,但是從高效率地製造鍍被膜18被形成於表面整體之熔融鍍鋁鋼線3的觀點,係200m/min以下較佳,100m/min以下更佳,50m/min以下愈佳。 According to the present invention, even when the pulling speed is set to a high speed of 200 m / min or more, a molten aluminum-plated steel wire 3 having a uniform outer diameter and a coating film 18 formed on the entire surface can be obtained. Therefore, the manufacturing method of the molten aluminum-plated steel wire of the present invention is because the molten aluminum-plated steel wire 3 in which the coating film 18 is formed on the entire surface can be efficiently manufactured, and therefore, the industrial productivity of the molten aluminum-plated steel wire 3 is excellent. . In addition, the drawing speed of the hot-dip aluminized steel wire 3 is not particularly high. It is limited, but from the viewpoint of efficiently manufacturing the molten aluminum-plated steel wire 3 in which the plating film 18 is formed on the entire surface, it is preferably 200 m / min or less, more preferably 100 m / min or less, and more preferably 50 m / min or less.

此外,亦可為了在拉升熔融鍍鋁鋼線3旳過程冷卻熔融鍍鋁鋼線3,使形成於表面之鍍被膜18高效率地凝固,如第1圖及第3圖所示,根據需要,將冷卻裝置15配設於噴嘴12的上部。在冷卻裝置15,在熔融鍍鋁鋼線3,例如藉由將氣體、液體之霧等噴射於熔融鍍鋁鋼線3,可冷卻該熔融鍍鋁鋼線3。 In addition, in order to cool the molten aluminized steel wire 3 during the process of pulling the molten aluminized steel wire 3, the solidified coating film 18 formed on the surface can be efficiently solidified, as shown in FIGS. 1 and 3, as required. , The cooling device 15 is arranged on the upper part of the nozzle 12. In the cooling device 15, the molten aluminized steel wire 3 can be cooled by spraying gas, liquid mist or the like on the molten aluminized steel wire 3.

如以上所示製造的熔融鍍鋁鋼線3係如第1圖及第3圖所示,例如能以捲繞裝置16等回收。 The hot-dip aluminized steel wire 3 manufactured as described above is as shown in FIG. 1 and FIG. 3 and can be recovered, for example, by the winding device 16 or the like.

在熔融鍍鋁鋼線3之表面所存在之熔融鍍被膜的平均厚度係從在絞線加工、歛縫加工等時抑制原材料之鋼線2露出外部,且提高每單位外徑之機械性強度的觀點,係約2~20μm較佳,約4~15μm更佳。 The average thickness of the hot-dip aluminized coating on the surface of the hot-dip aluminized steel wire 3 is obtained by suppressing the exposure of the raw steel wire 2 to the outside during stranding, crimping, etc., and increasing the mechanical strength per unit outer diameter. From a viewpoint, about 2-20 micrometers is preferable, and about 4-15 micrometers is more preferable.

亦可在上述所得之熔融鍍鋁鋼線3,根據需要,為了作成熔融鍍鋁鋼線3具有所要之外徑,而使用模具等施加拉線加工。 The hot-dip aluminized steel wire 3 obtained as described above may be subjected to wire drawing processing using a mold or the like in order to make the hot-dip aluminized steel wire 3 to have a desired outer diameter.

根據本發明之熔融鋁鍍鋼線的製造方法所得之熔融鍍鋁鋼線係例如可適合地用於汽車的線束等。 The molten aluminum-plated steel wire obtained by the method for manufacturing a molten aluminum-plated steel wire according to the present invention can be suitably used in, for example, wiring harnesses for automobiles.

[實施例] [Example]

其次,根據實施例,更詳細地說明本發明,但是本發明係不是被限定為僅該實施例。 Next, the present invention will be described in more detail based on examples. However, the present invention is not limited to these examples.

第1~第39實施例及第1~第3比較例 1st to 39th Examples and 1 to 3 Comparative Examples

根據第1圖所示之實施形態,製造熔融鍍鋁鋼線。 According to the embodiment shown in Fig. 1, a molten aluminum-plated steel wire is manufactured.

作為鋼線,使用具有第1~第3表所示之直徑,並 由第1~第3表所示之鋼的種類所構成之鋼線。在第3表之鋼的種類之欄所記載的37A意指由含有0.37質量%之碳的硬鋼所構成之鋼線。 As the steel wire, the diameters shown in Tables 1 to 3 are used, and Steel wire composed of the types of steels shown in Tables 1 to 3. 37A described in the steel type column of Table 3 means a steel wire composed of hard steel containing 0.37 mass% of carbon.

此外,對鋼線,在浸漬於熔融鋁電鍍液之前,浸漬於含有界面活化劑之矽酸鈉的脫脂液,藉此實施脫脂。 The steel wire is degreased by being immersed in a degreasing solution of sodium silicate containing an interfacial activator before being immersed in a molten aluminum plating solution.

又,作為鋼線導入裝置,使用組裝不銹鋼製塊材或角材,如第2圖所示,總長L是300mm,貫穿孔8之在導入口9b的開口部9c與在排出口9d之開口部9e的形狀、大小以及面積是相同的鋼線導入裝置7。在第1~第3表表示鋼線導入裝置7之貫穿孔8之開口部的形狀、大小、面積以及該面積與鋼線之在橫截面的面積之比的值(以下稱為「面積比之值」)。使鋼線導入裝置7之從下端至30mm的浸漬區域9a浸漬於熔融鋁電鍍液,作成被配線於鋼線導入裝置7之鋼線在此原來之狀態下被浸漬於熔融鋁電鍍液。 As the steel wire introduction device, a block or angle made of assembled stainless steel is used. As shown in FIG. 2, the total length L is 300 mm, and the opening 9c of the through hole 8 in the introduction port 9b and the opening 9e in the discharge port 9d. The steel wire introduction device 7 has the same shape, size and area. Tables 1 to 3 show the shape, size, and area of the openings of the through-holes 8 of the steel wire introduction device 7 and the values of the ratio of the area to the cross-sectional area of the steel wire (hereinafter referred to as "area ratio value"). The immersion area 9a of the steel wire introduction device 7 from the lower end to 30 mm is immersed in the molten aluminum plating solution, and the steel wires wired to the steel wire introduction device 7 are immersed in the molten aluminum plating solution in this original state.

作為熔融鋁電鍍液,使用熔融鋁電鍍液(鋁之純度:99.7%以上、在第1~第3表之「種類」的欄記載為「A1」)、含有4質量%之矽的熔融鋁電鍍液:在第1~第3表之「種類」的欄記載為「4%Si」)、含有8質量%之矽的熔融鋁電鍍液:在第1~第3表之「種類」的欄記載為「8%Si」)、含有11質量%之矽的熔融鋁電鍍液:在第1~第3表之「種類」的欄記載為「11%Si」)、或含有13質量%之矽的熔融鋁電鍍液:在第1~第3表之「種類」的欄記載為「13%Si」),在第1~第3表所示之液溫以第1~第3表所示之配線速度(鋼線之拉升速度)將鋼線浸漬於熔融鋁電鍍液後,從該電鍍液拉升。 As the molten aluminum plating solution, a molten aluminum plating solution (purity of aluminum: 99.7% or more, described as "A1" in the "type" column of Tables 1 to 3), and molten aluminum plating containing 4% by mass of silicon Liquid: described in the "Type" column of Tables 1 to 3 as "4% Si"), molten aluminum plating solution containing 8% by mass of silicon: described in the "Type" column of Tables 1 to 3 "8% Si"), a molten aluminum plating solution containing 11% by mass of silicon: "11% Si" in the "Type" column of Tables 1 to 3), or 13% by mass of silicon Molten aluminum plating solution: "13% Si" is described in the "Type" column of Tables 1 to 3), and the wiring temperature shown in Tables 1 to 3 is the wiring shown in Tables 1 to 3 Speed (drawing speed of the steel wire) After the steel wire is immersed in the molten aluminum plating solution, the steel wire is drawn from the plating solution.

將前端之內徑為3mm的噴嘴配設成噴嘴之前端位於與鋼線相距2mm的位置,從該噴嘴的前端將溫度被調整至600℃的惰性氣體(氮氣)以體積流量10L/min噴射至鋼線與熔融鋁電鍍液之液面的邊界部。 A nozzle with an inner diameter of 3 mm at the front end is arranged so that the front end of the nozzle is located 2 mm away from the steel wire, and an inert gas (nitrogen) whose temperature is adjusted to 600 ° C is injected from the front end of the nozzle to a volume flow rate of 10 L / min to The boundary between the steel wire and the liquid surface of the molten aluminum plating solution.

藉由進行以上的操作,得到被形成具有第1~第3表所示之平均厚度之鍍被膜的熔融鋁鍍鋼線。此外,在以下表示鍍被膜之平均厚度的測量方法。 By performing the above operations, a molten aluminum-plated steel wire having a plating film having an average thickness shown in Tables 1 to 3 was obtained. In addition, the measuring method of the average thickness of a plating film is shown below.

[鍍被膜之平均厚度的測量方法] [Measuring method of average thickness of plating film]

在各實施例及各比較例所得之熔融鋁鍍鋼線的鍍被膜之平均厚度的測量係根據第5圖所示之實施形態所進行。第5圖係表示測量在各實施例及各比較例所得之熔融鋁鍍鋼線的鍍被膜之平均厚度的方法之一實施形態的示意說明圖。 The measurement of the average thickness of the plating film of the molten aluminum-plated steel wire obtained in each Example and each Comparative Example was performed according to the embodiment shown in FIG. 5. FIG. 5 is a schematic explanatory diagram showing one embodiment of a method of measuring the average thickness of the coating film of the molten aluminum-plated steel wire obtained in each of the Examples and Comparative Examples.

如第5圖所示,作為配線式鋼線徑測量裝置19,使用具有2台光學式外徑測量器[(股份有限公司)Keyence製,型號:LS-7000]的配線式鋼線徑測量裝置19,該光學式外徑測量器係具有:在鉛垂方向所配置之一對滑輪19c與滑輪19d、及在水平方向被配設於滑輪19c與滑輪19d之間的中央部之一對發光部19a與受光部19b。使一對發光部19a與受光部19b彼此相對向,鄰接之發光部19a與受光部19b係如第5圖所示,配設成形成90°之角度。 As shown in FIG. 5, as the wire-type steel wire diameter measuring device 19, a wire-type steel wire diameter measuring device having two optical outer diameter measuring devices [(Co., Ltd.) Keyence, model: LS-7000] is used. 19. The optical outer diameter measuring device includes a pair of pulleys 19c and 19d arranged in a vertical direction, and a pair of light emitting units disposed in a central portion between the pulleys 19c and 19d in a horizontal direction. 19a and light receiving unit 19b. The pair of light-emitting portions 19a and the light-receiving portions 19b are opposed to each other, and the adjacent light-emitting portions 19a and the light-receiving portions 19b are arranged at an angle of 90 ° as shown in FIG. 5.

一面使在各實施例或各比較例所得之長度100m的熔融鍍鋁鋼線3以配線速度100m/分鐘的速度在箭號D方向在滑輪19c與滑輪19d之間行駛,一面在熔融鍍鋁鋼線3之長度方向以約1.4mm的間隔藉配線式鋼線徑測量裝置19測量熔融鍍鋁鋼 線3的外徑。此外,將該外徑之測量點數設定成約71000點。 The molten aluminized steel wire 3 having a length of 100 m obtained in each example or each comparative example was driven between the pulley 19c and the pulley 19d in the direction of the arrow D at a wiring speed of 100 m / min, while the molten aluminized steel The length 3 of the wire 3 is measured by a wire-type steel wire diameter measuring device 19 at an interval of about 1.4 mm. The outer diameter of the wire 3. The number of measurement points of the outer diameter was set to about 71,000 points.

接著,求得在上述所測量之熔融鋁鍍鋼線之外徑的平均值,從該平均值減去形成鍍被膜之前之鋼線的直徑(以下之第1~第3表所示之鋼線的直徑),再將所得之值除以2,藉此,求得鍍被膜之平均厚度。在第1~第3表表示其結果。 Next, the average value of the outer diameters of the molten aluminum-plated steel wires measured above was obtained, and the diameter of the steel wires before forming the coating film (the steel wires shown in Tables 1 to 3 below) was subtracted from the average value. Diameter), and divide the obtained value by 2 to obtain the average thickness of the plating film. The results are shown in Tables 1 to 3.

[鍍被膜之穩定性] [Stability of plating film]

作為在各實施例或各比較例所得之熔融鋁鍍鋼線的性能,根據以下之方法調查了鍍被膜之穩定性。在第1~第3表表示其結果。 As the performance of the molten aluminum-plated steel wire obtained in each example or each comparative example, the stability of the plating film was investigated by the following method. The results are shown in Tables 1 to 3.

鍍被膜之穩定性係在全長為使用顯微鏡以目視觀察在各實施例或各比較例所得之長度為100m之熔融鋁鍍鋼線的表面,將鍍被膜未存在的部分作為中心,抽取其前後250mm的長度[以下稱為觀察長度(500mm)],測量該鍍被膜未存在的部分之長度方向的長度(以下稱為不電鍍長度),根據數學式: [不電鍍率]={[不電鍍長度(mm)/[觀察長度(mm)]}×100,求得不電鍍率,再根據以下之評估基準,評估鍍被膜的穩定性。 The stability of the plating film is observed over the entire length by using a microscope to visually observe the surface of the molten aluminum-plated steel wire having a length of 100 m obtained in each of the Examples or Comparative Examples. The non-existing portion of the plating film is used as the center, and 250 mm before and after the extraction The length [hereinafter referred to as the observation length (500mm)], the length in the longitudinal direction of the portion where the plating film does not exist (hereinafter referred to as the non-plating length) is measured, according to the mathematical formula: [Electroless plating rate] = {[Electroless plating length (mm) / [Observation length (mm)]} × 100, obtain the electroless plating rate, and evaluate the stability of the plating film according to the following evaluation criteria.

(鍍被膜之穩定性的評估基準) (Evaluation Criteria for Stability of Coatings)

5:不電鍍率為未滿1%(合格) 5: Non-plating rate is less than 1% (pass)

4:不電鍍率為1%以上且未滿5%(合格) 4: Non-plating rate is 1% or more and less than 5% (pass)

3:不電鍍率為5%以上且未滿30%(合格) 3: Non-plating rate is 5% or more and less than 30% (pass)

2:不電鍍率為30%以上且未滿60%(不合格) 2: Non-plating rate is 30% or more and less than 60% (Failure)

1:不電鍍率為60%以上(不合格) 1: Non-plating rate is 60% or more (Failure)

第40~第67實施例及第4比較例 40th to 67th examples and 4th comparative example

熔融鋁鍍鋼線之製造係根據第3圖所示之實施形態進行。作為鋼線,具有第4~第5表所示的直徑,使用由第4~第5表所示之鋼的種類所構成之鋼線。第5表之鋼的種類的欄所記載之37A意指由含有0.37質量%之碳的硬鋼所構成之鋼線。 The production of the molten aluminum-plated steel wire is performed according to the embodiment shown in FIG. 3. As the steel wire, the steel wire has a diameter shown in Tables 4 to 5, and a steel wire composed of the types of steels shown in Tables 4 to 5 is used. 37A described in the column of the type of steel in Table 5 means a steel wire composed of hard steel containing 0.37% by mass of carbon.

此外,對鋼線,在浸漬於熔融鋁電鍍液之前,浸漬於含有界面活化劑之矽酸鈉的脫脂液,藉此實施脫脂。 The steel wire is degreased by being immersed in a degreasing solution of sodium silicate containing an interfacial activator before being immersed in a molten aluminum plating solution.

又,藉由在將鋼線配線於鋼線導入裝置之前配線於加熱裝置,預熱至第4~第5表所示的預熱溫度。作為加熱裝置,在鋼線導入裝置之正前設置管狀的加熱器(未圖示)。在此加熱器,內建捲繞成線圈狀的Kanthal線,藉由將用以供給氮氣之氣體導入系統(未圖示)與該加熱器連接,導入在加熱裝置內所加熱之氮氣,在氮氣環境中對鋼線預熱。此外,預熱溫度係準備將熱電偶與鋼線連接者,使該熱電偶與鋼線一起通過加熱裝置中,藉此測量。 In addition, by wiring the steel wire to the heating device before wiring the steel wire to the steel wire introduction device, it is preheated to the preheating temperatures shown in Tables 4 to 5. As the heating device, a tubular heater (not shown) is provided in front of the steel wire introduction device. This heater has a built-in Kanthal wire wound in a coil shape. A gas introduction system (not shown) for supplying nitrogen is connected to the heater, and the nitrogen heated in the heating device is introduced. Preheat the steel wire in the environment. In addition, the preheating temperature is measured by connecting a thermocouple to a steel wire and passing the thermocouple together with the steel wire through a heating device.

作為鋼線導入裝置,使用組裝不銹鋼製塊材或角材,如第2圖所示,總長L是100mm,貫穿孔8之在導入口9b的開口部9c與在排出口9d之開口部9e的形狀、大小以及面積是相同的鋼線導入裝置7。在第4~第5表表示該鋼線導入裝置7之貫穿孔8之開口部的形狀、大小、面積以及面積比的值。使鋼線導入裝置7之從下端至10mm的浸漬區域9a浸漬於熔融鋁電鍍液,作成被配線於鋼線導入裝置7之鋼線在此原來之狀態下被浸漬於熔融鋁電鍍液。 As the steel wire introduction device, a block or angle made of assembled stainless steel is used. As shown in FIG. 2, the total length L is 100 mm, and the shape of the opening 9c of the through hole 8 at the introduction port 9b and the opening 9e of the discharge port 9d The steel wire introduction device 7 is the same in size, size, and area. Tables 4 to 5 show the values of the shape, size, area, and area ratio of the openings of the through holes 8 of the steel wire introduction device 7. The immersion area 9a of the steel wire introduction device 7 from the lower end to 10 mm is immersed in the molten aluminum plating solution, and the steel wires wired to the steel wire introduction device 7 are immersed in the molten aluminum plating solution in this original state.

作為熔融鋁電鍍液,使用熔融鋁電鍍液(含有8質量%之矽的熔融鋁電鍍液:在第4~第5表之「種類」的欄記載為「8%Si」),在第4~第5表所示之液溫以第4~第5表所示之配線速度(鋼線之拉升速度)將鋼線浸漬於熔融鋁電鍍液後,從該電鍍液拉升。 As the molten aluminum electroplating solution, a molten aluminum electroplating solution (a molten aluminum electroplating solution containing 8% by mass of silicon: described as "8% Si" in the "type" column of Tables 4 to 5) was used. The liquid temperature shown in Table 5 was immersed in the molten aluminum plating solution at the wiring speed (drawing speed of the steel wire) shown in Tables 4 to 5, and then pulled up from the plating solution.

又,將前端之內徑為3mm的噴嘴配設成噴嘴之前端位於與鋼線相距2mm的位置,從該噴嘴的前端將溫度被調整至600℃的惰性氣體(氮氣)以體積流量10L/min噴射至鋼線與熔融鋁電鍍液之液面的邊界部。 In addition, a nozzle with an inner diameter of 3 mm at the front end was arranged so that the front end of the nozzle was located 2 mm away from the steel wire, and an inert gas (nitrogen) whose temperature was adjusted to 600 ° C from the front end of the nozzle at a volume flow rate of 10 L / min Sprayed to the boundary between the steel wire and the liquid surface of the molten aluminum plating solution.

藉由進行以上的操作,得到具有第4~第5表所示之平均厚度之鍍被膜的熔融鋁鍍鋼線。 By performing the above operations, a molten aluminum-plated steel wire having an average thickness of the plating film shown in Tables 4 to 5 was obtained.

其次,與上述一樣地調查了在上述所得之熔融鋁鍍鋼線之鍍被膜的平均厚度及鍍被膜的穩定性。在第4~第5表表示其結果。 Next, the average thickness of the plating film and the stability of the plating film on the molten aluminum-plated steel wire obtained as described above were investigated in the same manner as described above. The results are shown in Tables 4 to 5.

第68~第83實施例 68th to 83th embodiments

熔融鋁鍍鋼線之製造係根據第1圖所示之實施形態進行。 The production of the molten aluminum-plated steel wire is performed according to the embodiment shown in FIG. 1.

作為鋼線,具有第6表所示的直徑,使用由第6表所示之鋼的種類所構成之鋼線。第6表之鋼的種類的欄所記載之37A意指由含有0.37質量%之碳的硬鋼所構成之鋼線。 As the steel wire, a steel wire having a diameter shown in Table 6 and using a type of steel shown in Table 6 was used. 37A described in the column of the type of steel in Table 6 means a steel wire composed of hard steel containing 0.37% by mass of carbon.

此外,對鋼線,在浸漬於熔融鋁電鍍液之前,浸漬於含有界面活化劑之矽酸鈉的脫脂液,藉此實施脫脂。 The steel wire is degreased by being immersed in a degreasing solution of sodium silicate containing an interfacial activator before being immersed in a molten aluminum plating solution.

作為鋼線導入裝置,使用組裝不銹鋼製塊材或角材,如第2圖所示,總長L是800mm,貫穿孔8之在導入口9b的開口部9c與在排出口9d之開口部9e的形狀、大小以及面積是相同的鋼線導入裝置7。在第6表表示該鋼線導入裝置7之貫穿孔8之開口部的形狀、大小、面積以及面積比的值。使該鋼線導入裝置7之從下端至100mm的浸漬區域9a浸漬於熔融鋁電鍍液,作成被配線於鋼線導入裝置7之鋼線在此原來之狀態下被浸漬於熔融鋁電鍍液。 As the steel wire introduction device, a block or angle made of assembled stainless steel is used. As shown in FIG. 2, the total length L is 800 mm, and the shape of the opening portion 9 c of the through hole 8 at the introduction port 9 b and the opening portion 9 e of the discharge port 9 d is shown. The steel wire introduction device 7 is the same in size, size, and area. Table 6 shows values of the shape, size, area, and area ratio of the openings of the through holes 8 of the steel wire introduction device 7. The molten aluminum plating solution is immersed from the lower end to the immersion area 9a of the steel wire introduction device 7 to 100 mm, and the steel wire to be wired to the steel wire introduction device 7 is immersed in the molten aluminum plating solution in this original state.

作為熔融鋁電鍍液,使用熔融鋁電鍍液(含有8質量%之矽的熔融鋁電鍍液:在第6表之「種類」的欄記載為「8%Si」),在第6表所示之液溫以第6表所示之配線速度(鋼線之拉升速度)將鋼線浸漬於熔融鋁電鍍液後,從該電鍍液拉升。 As the molten aluminum plating solution, a molten aluminum plating solution (a molten aluminum plating solution containing 8% by mass of silicon: described as "8% Si" in the "type" column of Table 6) was used. The liquid temperature was immersed in the molten aluminum plating solution at the wiring speed (drawing speed of the steel wire) shown in Table 6 and then pulled up from the plating solution.

又,將前端之內徑為3mm的噴嘴配設成該噴嘴之前端位於與鋼線相距2mm的位置,從該噴嘴的前端將溫度被調整至600℃的惰性氣體(氮氣)以體積流量10L/min噴射至鋼 線與熔融鋁電鍍液之液面的邊界部。 In addition, a nozzle having an inner diameter of 3 mm at the front end was arranged so that the front end of the nozzle was located 2 mm away from the steel wire, and an inert gas (nitrogen) whose temperature was adjusted to 600 ° C from the front end of the nozzle at a volume flow rate of 10 L / spray to steel The boundary between the wire and the liquid surface of the molten aluminum plating solution.

藉由進行以上的操作,得到具有第6表所示之平均厚度之鍍被膜的熔融鋁鍍鋼線。 By performing the above operations, a molten aluminum-plated steel wire having a plating film having an average thickness as shown in Table 6 was obtained.

其次,與上述一樣地調查了在上述所得之熔融鋁鍍鋼線之鍍被膜的平均厚度及鍍被膜的穩定性。在第6表表示其結果。 Next, the average thickness of the plating film and the stability of the plating film on the molten aluminum-plated steel wire obtained as described above were investigated in the same manner as described above. The results are shown in Table 6.

從第1~第6表所示之結果,得知若依據各實施例之熔融鋁鍍鋼線的製造方法,具有可高效率地製造鍍被膜被形成於表面整體之熔融鍍鋁鋼線之優異的效果。 From the results shown in Tables 1 to 6, it was found that if the method for manufacturing a molten aluminum-plated steel wire according to each of the examples is excellent in the ability to efficiently produce a molten aluminum-plated steel wire with a coating film formed on the entire surface. Effect.

相對地,得知在第1~第4比較例,因為未設置鋼線導入裝置7,所以在對熔融鋁電鍍液浸漬鋼線時因為被浸漬成捲入熔融鋁電鍍液之溶液或在熔融鋁電鍍液之液面所浮游的氧化膜,所以熔融鋁鍍鋼線係在表面常被看到鍍被膜不存在的部分,在鍍被膜的穩定性差。 On the other hand, it is known that in the first to fourth comparative examples, since the steel wire introduction device 7 is not provided, when the molten aluminum plating solution is immersed in the steel wire, it is immersed in a solution that is entangled in the molten aluminum plating solution or in molten aluminum. The floating oxide film on the liquid surface of the plating solution, so the molten aluminum steel plated wire is often seen on the surface where the plating film does not exist, and the stability of the plating film is poor.

【工業上的可應用性】 [Industrial applicability]

根據本發明的製造方法所得的熔融鋁鍍鋼線係例如可適合地用於汽車的線束等。 The molten aluminum-plated steel wire obtained by the manufacturing method of the present invention can be suitably used in, for example, wire harnesses for automobiles.

1‧‧‧熔融鋁電鍍液 1‧‧‧ molten aluminum plating solution

2‧‧‧鋼線 2‧‧‧steel wire

3‧‧‧熔融鋁鍍鋼線 3‧‧‧ Molten Aluminum Plated Steel Wire

4‧‧‧送出裝置 4‧‧‧ delivery device

5‧‧‧電鍍液槽 5‧‧‧Plating bath

6‧‧‧鋼線之浸漬部 6‧‧‧Immersion of steel wire

7‧‧‧鋼線導入裝置 7‧‧‧steel wire introduction device

10‧‧‧熔融鋁電鍍液之液面 10‧‧‧ Level of molten aluminum plating solution

12‧‧‧噴嘴 12‧‧‧ Nozzle

13‧‧‧惰性氣體供給裝置 13‧‧‧Inert gas supply device

14‧‧‧配管 14‧‧‧Piping

15‧‧‧冷卻裝置 15‧‧‧cooling device

16‧‧‧捲繞裝置 16‧‧‧ Winding device

A‧‧‧箭號 A‧‧‧Arrow

Claims (3)

一種熔融鋁鍍鋼線的製造方法,係使鋼線浸漬於熔融鋁電鍍液後,從該熔融鋁電鍍液連續地拉升鋼線,藉此,製造熔融鋁鍍鋼線的方法,其特徵為:在使鋼線浸漬於熔融鋁電鍍液之鋼線的浸漬部,由具有用以使鋼線配線於內部的貫穿孔,且總長是10~1000mm的管狀體所構成,並從該管狀體之一端的端部沿著該管狀體的長度方向在長度2~400mm的範圍內具有浸漬於熔融鋁電鍍液的浸漬區域,在使貫穿孔之開口部的面積與熔融鋁鍍所使用之鋼線之在橫截面的面積之比[管狀體所具有之貫穿孔之開口部的面積/鋼線之在橫截面的面積]的值是3~4000之鋼線導入裝置的浸漬區域浸漬於熔融鋁電鍍液之狀態使鋼線配線於鋼線導入裝置內後,使鋼線浸漬於熔融鋁電鍍液。 A method for manufacturing a molten aluminum-plated steel wire is a method for manufacturing a molten aluminum-plated steel wire by immersing the steel wire in the molten aluminum plating solution and continuously pulling the steel wire from the molten aluminum plating solution. : The immersion part of the steel wire in which the steel wire is immersed in the molten aluminum plating solution is composed of a tubular body having a through hole for wiring the steel wire inside and having a total length of 10 to 1000 mm, The end of one end has an immersion area immersed in the molten aluminum plating solution within a length of 2 to 400 mm along the length direction of the tubular body. The area of the opening portion of the through hole and the steel wire used for molten aluminum plating The value of the ratio of the area of the cross section [the area of the openings of the through-holes of the tubular body / the area of the steel wire in the cross section] is 3 to 4000. The immersion area of the steel wire introduction device is immersed in the molten aluminum plating solution. After the steel wire is wired in the steel wire introduction device in this state, the steel wire is immersed in the molten aluminum plating solution. 如申請專利範圍第1項之熔融鋁鍍鋼線的製造方法,其中鋼線係由碳鋼或不銹鋼所構成之鋼線。 For example, the method for manufacturing a molten aluminum-plated steel wire according to item 1 of the application, wherein the steel wire is a steel wire composed of carbon steel or stainless steel. 一種熔融鋁電鍍用鋼線導入裝置,係在使鋼線浸漬於熔融鋁電鍍液後,從該熔融鋁電鍍液連續地拉升鋼線,藉此,製造熔融鋁鍍鋼線時,在使鋼線浸漬於熔融鋁電鍍液之鋼線的浸漬部所使用之鋼線導入裝置,其特徵為:由具有用以使鋼線貫穿於內部的貫穿孔,且總長是10~1000mm的管狀體所構成,並從該管狀體之一端的端部 沿著該管狀體的長度方向在長度2~400mm的範圍內具有浸漬於熔融鋁電鍍液的浸漬區域,貫穿孔之開口部的面積與在熔融鋁鍍所使用之鋼線之在橫截面的面積之比[管狀體所具有之貫穿孔之開口部的面積/鋼線之在橫截面的面積]的值是3~4000。 A steel wire introduction device for molten aluminum electroplating is made by immersing a steel wire in a molten aluminum electroplating solution, and continuously pulling up the steel wire from the molten aluminum electroplating solution. The steel wire introduction device used in the immersion part of the steel wire in which the wire is immersed in the molten aluminum electroplating solution is characterized by a tubular body having a through hole for allowing the steel wire to pass through the inside and a total length of 10 to 1000 mm. And from the end of one end of the tubular body Along the longitudinal direction of the tubular body, there is an immersion area immersed in the molten aluminum plating solution in a range of 2 to 400 mm in length. The area of the opening portion of the through hole and the cross-sectional area of the steel wire used in the molten aluminum plating. The value of the ratio [the area of the opening portion of the through-hole of the tubular body / the area of the steel wire in the cross section] is 3 to 4000.
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