JP2017186668A - 溶融アルミニウムめっき鋼線の製造方法 - Google Patents
溶融アルミニウムめっき鋼線の製造方法 Download PDFInfo
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 243
- 239000010959 steel Substances 0.000 title claims abstract description 243
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 201
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- 230000000087 stabilizing effect Effects 0.000 claims description 17
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- 238000002844 melting Methods 0.000 claims description 9
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- 238000007598 dipping method Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 13
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
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- 230000000052 comparative effect Effects 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
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- 239000011651 chromium Substances 0.000 description 5
- 229910001873 dinitrogen Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000011701 zinc Substances 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- 229910052804 chromium Inorganic materials 0.000 description 4
- 238000007654 immersion Methods 0.000 description 4
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- 239000002184 metal Substances 0.000 description 4
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- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
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- 229910052759 nickel Inorganic materials 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
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- 229910000851 Alloy steel Inorganic materials 0.000 description 1
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- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- WHROWQPBDAJSKH-UHFFFAOYSA-N [Mn].[Ni].[Cr] Chemical compound [Mn].[Ni].[Cr] WHROWQPBDAJSKH-UHFFFAOYSA-N 0.000 description 1
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- 239000000956 alloy Substances 0.000 description 1
- VRAIHTAYLFXSJJ-UHFFFAOYSA-N alumane Chemical compound [AlH3].[AlH3] VRAIHTAYLFXSJJ-UHFFFAOYSA-N 0.000 description 1
- KCZFLPPCFOHPNI-UHFFFAOYSA-N alumane;iron Chemical compound [AlH3].[Fe] KCZFLPPCFOHPNI-UHFFFAOYSA-N 0.000 description 1
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
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- 239000011248 coating agent Substances 0.000 description 1
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- 150000003949 imides Chemical class 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
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- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- POWFTOSLLWLEBN-UHFFFAOYSA-N tetrasodium;silicate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-][Si]([O-])([O-])[O-] POWFTOSLLWLEBN-UHFFFAOYSA-N 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C23—COATING 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
- C23C—COATING 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/14—Removing excess of molten coatings; Controlling or regulating the coating thickness
- C23C2/16—Removing excess of molten coatings; Controlling or regulating the coating thickness using fluids under pressure, e.g. air knives
- C23C2/18—Removing excess of molten coatings from elongated material
- C23C2/185—Tubes; Wires
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- C—CHEMISTRY; METALLURGY
- C23—COATING 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
- C23C—COATING 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/12—Aluminium or alloys based thereon
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- C—CHEMISTRY; METALLURGY
- C23—COATING 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
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- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/14—Removing excess of molten coatings; Controlling or regulating the coating thickness
- C23C2/16—Removing excess of molten coatings; Controlling or regulating the coating thickness using fluids under pressure, e.g. air knives
- C23C2/18—Removing excess of molten coatings from elongated material
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- C—CHEMISTRY; METALLURGY
- C23—COATING 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
- C23C—COATING 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/14—Removing excess of molten coatings; Controlling or regulating the coating thickness
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- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/34—Hot-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
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Abstract
Description
(1) 溶融アルミニウムめっき浴に鋼線を浸漬させた後、当該溶融アルミニウムめっき浴から鋼線を連続して引き上げることによって溶融アルミニウムめっき鋼線を製造する方法であって、鋼線を当該溶融アルミニウムめっき浴に浸漬させた後、当該溶融アルミニウムめっき浴から引き上げられた溶融アルミニウムめっき鋼線と溶融アルミニウムめっき浴の浴面との境界部で安定化部材を当該溶融アルミニウムめっき浴の浴面および当該溶融アルミニウムめっき鋼線と接触させ、当該溶融アルミニウムめっき鋼線を介して当該安定化部材と対向する位置に不活性ガスを吹き付けるためのノズルを配設し、当該ノズルの先端から前記境界部に不活性ガスを0.1〜20kPaの圧力で吹き付けることを特徴とする溶融アルミニウムめっき鋼線の製造方法、
(2) 鋼線が炭素鋼またはステンレス鋼からなる鋼線である前記(1)に記載の溶融アルミニウムめっき鋼線の製造方法、および
(3) 溶融アルミニウムめっき浴の浴温を当該溶融アルミニウムめっき浴の融点よりも20℃以上高くなるように調整する前記(1)または(2)に記載の溶融アルミニウムめっき鋼線の製造方法
に関する。
各実施例および各比較例では、図1に示される溶融アルミニウムめっき鋼線の製造方法の実施態様に準じて溶融アルミニウムめっき鋼線を製造した。
各実施例および各比較例で得られた溶融アルミニウムめっき鋼線のめっき被膜の平均厚さの測定は、図5に示される実施態様に基づいて行なった。図5は、各実施例および各比較例で得られた溶融アルミニウムめっき鋼線のめっき被膜の平均厚さを測定する方法の一実施態様を示す概略説明図である。
前記で得られた溶融アルミニウムめっき鋼線の性能として、アルミニウム塊の付着性およびめっき被膜の薄肉部の最小厚さの安定性を以下の方法に基づいて調べた。その結果を各表に示す。
長さ300mの溶融アルミニウムめっき鋼線を100m/minの通線速度で走行させ、当該溶融アルミニウムめっき鋼線の全長にわたって溶融アルミニウムめっき鋼線の外径を測定し、局部的に外径が大きくなっている凸部分の有無を調べた。局部的に外径が大きい凸部分にアルミニウム塊が付着しているかどうかを目視により観察し、以下の評価基準に基づいてアルミニウム塊の付着性を評価した。なお、溶融アルミニウムめっき鋼線の外径は、光学式外径測定器〔(株)キーエンス製、品番:LS−7000〕を用いて測定した。
○:アルミニウム塊の付着が認められない。
×:アルミニウム塊の付着が認められる。
めっき被膜の薄肉部の最小厚さを求めるために、溶融アルミニウムめっき鋼線の断面を観察した。より具体的には、溶融アルミニウムめっき鋼線から300mmの試験体を任意に切り出し、さらに当該試験体から6本の試験片を切り出した後、当該試験片を樹脂に包埋させ、包埋させた樹脂を裁断し、その裁断面を研磨することにより、溶融アルミニウムめっき鋼線の断面を露出させた。この断面を光学顕微鏡(倍率:500倍)で観察し、めっき被膜の薄肉部の最小厚さを測定した。6本の試験片について測定しためっき被膜の薄肉部の最小の厚さのうち、最も小さい厚さを当該めっき被膜の薄肉部の最小厚さとした。
前記で求めためっき被膜の薄肉部の最小厚さから、以下の評価基準に基づいてめっき被膜の薄肉部の最小厚さの安定性を評価した。
◎:めっき被膜の薄肉部の最小厚さが2μm以上
○:めっき被膜の薄肉部の最小厚さが1μm以上2μm未満
×:めっき被膜の薄肉部の最小厚さが1μm未満
アルミニウム塊の付着性およびめっき被膜の薄肉部の最小厚さの安定性の評価結果に基づいて、以下の評価基準により、総合評価を行なった。
◎:アルミニウム塊の付着性の評価が○であり、めっき被膜の薄肉部の最小厚さの安定性の評価が◎である(優秀)。
○:アルミニウム塊の付着性およびめっき被膜の評価がいずれも○である(優良)。
×:アルミニウム塊の付着性およびめっき被膜の評価に×の評価が存在する(不合格)。
2 鋼線
3 溶融アルミニウムめっき鋼線
4 送出装置
5 めっき浴槽
6 加熱装置
6a 加熱装置本体
6b 加熱装置本体の内部
6c 加熱装置本体の加熱ガス通気口
6d 加熱装置本体の下端
6e 加熱装置本体の枝管
7 浴面制御装置
7a 浴面制御装置の上端
8 鋼線導入部制御装置
9 管状体
9a 管状体の貫通孔
9b 管状体の浸漬領域
9c 管状体の導入口
9d 管状体の導入口における開口部
9e 管状体の排出口
9f 管状体の排出口における開口部
10 溶融アルミニウムめっき浴の浴面
11 安定化部材
11a 安定化部材の耐熱クロス材
12 ノズル
12a ノズルの先端
13 不活性ガス供給装置
14 配管
15 冷却装置
16 巻取装置
17 メニスカス
17a メニスカスの先端
18 めっき被膜
19 通線式鋼線径測定装置
19a 通線式鋼線径測定装置の発光部
19b 通線式鋼線径測定装置の受光部
19c 通線式鋼線径測定装置のプーリー
19d 通線式鋼線径測定装置のプーリー
Claims (3)
- 溶融アルミニウムめっき浴に鋼線を浸漬させた後、当該溶融アルミニウムめっき浴から鋼線を連続して引き上げることによって溶融アルミニウムめっき鋼線を製造する方法であって、鋼線を当該溶融アルミニウムめっき浴に浸漬させた後、当該溶融アルミニウムめっき浴から引き上げられた溶融アルミニウムめっき鋼線と溶融アルミニウムめっき浴の浴面との境界部で安定化部材を当該溶融アルミニウムめっき浴の浴面および当該溶融アルミニウムめっき鋼線と接触させ、当該溶融アルミニウムめっき鋼線を介して当該安定化部材と対向する位置に不活性ガスを吹き付けるためのノズルを配設し、当該ノズルの先端から前記境界部に不活性ガスを0.1〜20kPaの圧力で吹き付けることを特徴とする溶融アルミニウムめっき鋼線の製造方法。
- 鋼線が炭素鋼またはステンレス鋼からなる鋼線である請求項1に記載の溶融アルミニウムめっき鋼線の製造方法。
- 溶融アルミニウムめっき浴の浴温を当該溶融アルミニウムめっき浴の融点よりも20℃以上高くなるように調整する請求項1または2に記載の溶融アルミニウムめっき鋼線の製造方法。
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- 2017-03-30 EP EP17775500.6A patent/EP3438318A4/en not_active Withdrawn
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EP3438318A4 (en) | 2019-10-23 |
WO2017170967A1 (ja) | 2017-10-05 |
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