JPS63130760A - Formation of dark red colored plating - Google Patents
Formation of dark red colored platingInfo
- Publication number
- JPS63130760A JPS63130760A JP61278177A JP27817786A JPS63130760A JP S63130760 A JPS63130760 A JP S63130760A JP 61278177 A JP61278177 A JP 61278177A JP 27817786 A JP27817786 A JP 27817786A JP S63130760 A JPS63130760 A JP S63130760A
- Authority
- JP
- Japan
- Prior art keywords
- dark red
- steel
- iron
- plating
- base material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007747 plating Methods 0.000 title claims abstract description 20
- 230000015572 biosynthetic process Effects 0.000 title 1
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 28
- 239000010959 steel Substances 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910001297 Zn alloy Inorganic materials 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 239000011701 zinc Substances 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 abstract description 8
- 238000005260 corrosion Methods 0.000 abstract description 8
- 229910052742 iron Inorganic materials 0.000 abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 10
- 238000007598 dipping method Methods 0.000 abstract 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 14
- 229910052725 zinc Inorganic materials 0.000 description 11
- 229910001335 Galvanized steel Inorganic materials 0.000 description 7
- 239000008397 galvanized steel Substances 0.000 description 7
- 239000002585 base Substances 0.000 description 6
- 238000004040 coloring Methods 0.000 description 4
- 230000001747 exhibiting effect Effects 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Landscapes
- Coating With Molten Metal (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、鉄鋼に暗赤色の着色メッキを形成する方法に
関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for forming a dark red colored plating on steel.
ここでいう“暗赤色”とは鈍い色調の赤色を意味する。"Dark red" here means a dull red color.
狐米致貨
従来、溶融亜鉛を用いてメッキを施した溶融亜鉛メッキ
鋼は、建築、土木、電力通信、運輸、農業及び水産等の
部門での材料や施設に至る広範囲な分野において耐食材
料として使用されている。Traditionally, hot-dip galvanized steel, which is plated using hot-dip zinc, has been used as a corrosion-resistant material in a wide range of fields, including materials and facilities in sectors such as architecture, civil engineering, power communications, transportation, agriculture, and fisheries. It is used.
一方、近年、鉄鋼製品の用途の多様化に伴い、特に、鉄
塔、照明用ポール、ガードレール、種々の仮設用架台、
外板等では、従来の溶融亜鉛メッキ鋼のような金属色の
ものよりも周囲の環境に適合して美観性を呈する着色溶
融亜鉛メッキ鋼が要望されるようになり、今後、建築、
土木、電力通信等のほかに、運輸、農業及び水産等の部
門においても着色溶融亜鉛メッキ鋼の巾広い需要が見込
まれる。On the other hand, in recent years, with the diversification of uses for steel products, in particular steel towers, lighting poles, guardrails, various temporary frames,
For exterior panels, etc., there is a growing demand for colored hot-dip galvanized steel, which is more aesthetically pleasing and matches the surrounding environment than conventional hot-dip galvanized steel.
In addition to civil engineering, power communications, etc., a wide range of demand for colored hot-dip galvanized steel is expected in sectors such as transportation, agriculture, and fisheries.
而して、従来の溶融亜鉛メッキ鋼の着色法としては、該
メッキ鋼に塗装により着色することが主として行われて
いるが、熔融亜鉛メッキ鋼のメッキ被膜中のＺｎは活性
なため、塗料の油分の構成分である脂肪酸が徐々にアル
カリ分解して亜鉛面けんを形成するようになる。そのた
め、着色に用いた塗料の皮膜がメッキ皮膜表面に付着せ
ずに剥離するに至る欠点がある。The conventional coloring method for hot-dip galvanized steel is mainly to color the plated steel by painting, but since the Zn in the plating film of hot-dip galvanized steel is active, the paint cannot be used. Fatty acids, which are the constituents of oil, gradually decompose with alkali to form zinc oxide. Therefore, there is a drawback that the paint film used for coloring does not adhere to the surface of the plating film and peels off.
したがって、従来はこのような欠点を防くために、鉄鋼
に溶融亜鉛を用いてメッキを施し、ついで得られたメッ
キ鋼を大気中に１〜３週間暴露して上記メッキ皮膜上に
さらにＺｎ （ＯＨ） ２、ＺｎＯ１ＺｎＣＯ３および
ＺｎＣ１□等の腐食生成物を形成させ、ついでメッキ鋼
の表面をクリーニングした後、着色のための塗装を施す
という煩雑な操作を行うことが余儀なくされている。Therefore, in order to prevent such defects, conventionally, steel is plated with molten zinc, and then the plated steel obtained is exposed to the atmosphere for 1 to 3 weeks to further coat the plated film with Zn ( OH) 2, it is necessary to form corrosion products such as ZnO1ZnCO3 and ZnC1□, then clean the surface of the plated steel, and then apply a coating for coloring, which is a complicated operation.
発明が解決しようとする課題
本発明者は、溶融亜鉛メッキ鋼の着色における畝上の問
題点に鑑みなされたものであって、鉄鋼母材に溶融亜鉛
によるメッキと暗赤色の特定な色相の着色を同時に形成
するための着色メッキ方法を提供することを課題とする
。Problems to be Solved by the Invention The present inventors have proposed an invention that was created in view of the problem of ridges in coloring hot-dip galvanized steel. An object of the present invention is to provide a colored plating method for simultaneously forming.
以下本発明の詳細な説明する。The present invention will be explained in detail below.
髪班ｑ櫃戊
本発明の特徴は、０．２〜０．５重量％Ｔｉ −０，０
５〜０．１５重量％Ｍｎ −Ｚｎの組成を有する溶融亜
鉛合金の浴を用いて浴温度５８０〜６００℃で鉄綱母材
にメッキを施し、次いでこれを５００〜５２０℃の温度
の雰囲気中で３０〜７０秒加熱した後、水冷もしくは温
水冷することにより、鉄鋼母材に暗赤色の色相を呈する
着色メッキを形成することにある。The feature of the present invention is that 0.2 to 0.5% by weight of Ti -0,0
Using a bath of molten zinc alloy having a composition of 5 to 0.15% by weight Mn-Zn, a steel base material is plated at a bath temperature of 580 to 600°C, and then this is plated in an atmosphere at a temperature of 500 to 520°C. The objective is to form a colored plating exhibiting a dark red hue on the steel base material by heating for 30 to 70 seconds and then cooling with water or hot water.
課題を解決するための手段
本発明において、溶融亜鉛合金に使用する亜鉛地金とし
ては、ＪＩＳ １（２１０７に規定される主として蒸留
亜鉛地金１種（純度９８．５％以上）、最純亜鉛地金（
純度９９．９９％以上）並びに特殊亜鉛地金が例示し得
、これらの亜鉛地金に不可避的に含まれる不純物は、例
えば蒸留亜鉛地金１種ではＰｂ １．２ｗｔ％以下、Ｃ
ｄ −１ｒｔ％以下、Ｆｅ −０２０ｗｔ％以下である
が、本発明ではこれらの不純物の含量が合計で１５ｗｔ
％未溝の亜鉛地金を用いることが好ましい。なお、これ
らの亜鉛地金のうち、蒸留亜鉛地金は通常のフラックス
でメッキ可能であり、かつ濃度も高くなるので実用上好
ましい。Means for Solving the Problems In the present invention, the zinc ingots used for the molten zinc alloy are mainly distilled zinc ingots (purity 98.5% or higher), class 1 distilled zinc ingots specified in JIS 1 (2107), and the purest zinc ingots. Bullion (
(purity of 99.99% or more) and special zinc ingots, and the impurities unavoidably contained in these zinc ingots include, for example, in one type of distilled zinc ingot, Pb 1.2 wt% or less, C
d -1rt% or less, Fe -020wt% or less, but in the present invention, the content of these impurities is 15wt% or less in total.
It is preferable to use an ungrooved zinc ingot. Note that among these zinc ingots, distilled zinc ingots are practically preferable because they can be plated with ordinary flux and have a high concentration.
本発明においては、上述したような亜鉛地金にＴｉを０
．２〜０．５重量％、好ましくは０．３重量％及びＭｎ
を０．０５〜０．１５重以下、好ましくは０．１重量％
添加、含有させた溶融亜鉛合金の浴を用いてメッキを行
う。In the present invention, zero Ti is added to the zinc base metal as described above.
．． 2-0.5% by weight, preferably 0.3% by weight and Mn
0.05 to 0.15% by weight or less, preferably 0.1% by weight
Plating is performed using a bath containing molten zinc alloy.
上記組成の溶融亜鉛合金の浴を用いて暗赤色の着色メッ
キを形成するには、該浴に５８０〜６００℃の浴温度で
鉄鋼母材を１分以上浸漬し、次いで鉄鋼母材を引上げて
５００〜５２０℃の温度の雰囲気中（例えば炉内）で３
０〜７０秒加熱した後、直ちに水冷もしくは温水冷を行
って、暗赤色の色相を呈する酸化膜から成る着色メッキ
を形成する。To form a dark red colored plating using a molten zinc alloy bath having the above composition, the steel base material is immersed in the bath for at least 1 minute at a bath temperature of 580 to 600°C, and then the steel base material is pulled up. 3 in an atmosphere (e.g. in a furnace) at a temperature of 500-520°C.
After heating for 0 to 70 seconds, water cooling or hot water cooling is immediately performed to form a colored plating consisting of an oxide film exhibiting a dark red hue.
上述のように、暗赤色の特定な色相の着色メッキを形成
するには、上記特定な組成の溶融亜鉛合金の浴を用い、
かつ上記特定な浴温度で鉄鋼母材にメッキを施し、次い
で特定な温度条件に加熱し、温水冷することが重要であ
って、上記範囲外の条件下では所望の暗赤色の着色メッ
キは得られない。As mentioned above, in order to form colored plating with a specific dark red hue, a bath of molten zinc alloy with the above specific composition is used,
It is also important to plate the steel base material at the above-mentioned specific bath temperature, then heat it to a specific temperature condition, and cool it with hot water; under conditions outside the above-mentioned range, the desired dark red colored plating cannot be obtained. I can't.
発明の効果
以上述べたとおり、本発明によると鉄鋼母材に暗赤色の
特定な色相を呈する着色メッキを形成し得るので、用途
により美観上暗赤色の色彩を有することが望まれる材料
や施設のための耐食性材料を提供することができ、した
がって、メッキ鋼の利用分野を拡張し得る利点がある。Effects of the Invention As described above, according to the present invention, a colored plating exhibiting a specific dark red hue can be formed on a steel base material. This has the advantage of being able to provide a corrosion-resistant material for coating steel, thus expanding the field of use of plated steel.
以下実施例により本発明とその効果を具体的に説明する
。The present invention and its effects will be specifically explained below using Examples.
実施例
幅５０ｍｍ 、長さ１００ｍｍ及び厚さ３．２ｍｍの寸
法のＳＳ ４１ 綱板を８０℃のアルカリ浴に３０分間
浸漬して脱脂を行った後、湯洗し、次いで塩酸の１０％
溶液に常温で３０分間浸漬して錆を除去した。次に、こ
の鋼板を湯洗後、３５％のＺｎＣ１ｚ ＮＨ４Ｃｌ溶
液に６０℃で３０秒間浸漬してフラックス処理を行った
。Example: An SS 41 steel plate with dimensions of 50 mm width, 100 mm length, and 3.2 mm thickness was degreased by immersing it in an alkaline bath at 80°C for 30 minutes, then washed with hot water, and then soaked in 10% hydrochloric acid.
The rust was removed by immersing it in a solution for 30 minutes at room temperature. Next, this steel plate was washed with hot water and then immersed in a 35% ZnC1z NH4Cl solution at 60° C. for 30 seconds to perform a flux treatment.
このようにして前処理した鋼板を、０．：ｈｔ％Ｔｉ
−Ｑ、１ｗｔ％Ｍｎ −Ｚｎの組成のメッキ浴に５８０
〜６００℃の温度で１分間浸漬してメッキを施し、次い
で浴から引上げて５００〜５２０℃の温度の炉内に３０
〜７０秒滞留させた後、炉内から取り出し、直ちに４０
〜６０°Ｃの温度の温水冷を行った。The steel plate pretreated in this way was treated with 0. :ht%Ti
-Q, 580% in a plating bath with a composition of 1 wt% Mn -Zn.
Plating is applied by immersion for 1 minute at a temperature of ~600°C, then removed from the bath and placed in a furnace at a temperature of 500-520°C for 30 minutes.
After staying for ~70 seconds, take it out of the furnace and immediately heat it for 40 seconds.
Hot water cooling was performed at a temperature of ~60°C.
このようにして得られた鋼板面には暗赤色の色相を呈す
る酸化膜から成るメッキ層が形成された。A plating layer consisting of an oxide film exhibiting a dark red hue was formed on the surface of the steel sheet thus obtained.
得られた着色メッキ鋼板の試験片について、塩水噴霧に
よる腐食試験を２４０時間にわたって行った結果、腐食
減量は６０ｇ／ｒｒ＋であった。A corrosion test using salt water spray was conducted for 240 hours on the obtained colored plated steel sheet test piece, and as a result, the corrosion weight loss was 60 g/rr+.
因に、蒸留亜鉛地金を用いて溶融亜鉛メッキを施した通
常の鋼板では上記腐食試験による腐食減量は１２０〜１
５０ｇ／％に達する。Incidentally, in the case of a normal steel plate hot-dip galvanized using distilled zinc ingot, the corrosion loss in the above corrosion test is 120 to 1.
It reaches 50g/%.
Claims (1)
５重量％Ｍｎ−Ｚｎの組成を有する溶融メッキ用亜鉛合
金を用い、浴温度５８０乃至６００℃で鉄鋼母材にメッ
キを施し、次いでこれを５００〜５２０℃の温度の雰囲
気中で３０〜７０秒加熱した後、水冷もしくは温水冷す
ることを特徴とする鉄鋼に暗赤色の着色メッキを形成す
る方法。(1) 0.2 to 0.5 wt% Ti-0.05 to 0.1
Using a zinc alloy for hot-dip plating having a composition of 5% by weight Mn-Zn, a steel base material is plated at a bath temperature of 580 to 600°C, and then this is plated in an atmosphere at a temperature of 500 to 520°C for 30 to 70 seconds. A method of forming dark red colored plating on steel, which is characterized by heating and then cooling with water or hot water.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61278177A JPS63130760A (en) | 1986-11-21 | 1986-11-21 | Formation of dark red colored plating |
| US07/116,613 US5022937A (en) | 1986-11-21 | 1987-11-03 | Colored zinc coating |
| DE87117097T DE3787347T2 (en) | 1986-11-21 | 1987-11-19 | Colored zinc coating. |
| EP87117097A EP0269005B1 (en) | 1986-11-21 | 1987-11-19 | Colored zinc coating |
| KR1019870013074A KR920004502B1 (en) | 1986-11-21 | 1987-11-20 | Method for forming coloured zinc coating on iron or steel surfaces |
| US07/694,750 US5141782A (en) | 1985-06-17 | 1991-05-02 | Colored zinc coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61278177A JPS63130760A (en) | 1986-11-21 | 1986-11-21 | Formation of dark red colored plating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63130760A true JPS63130760A (en) | 1988-06-02 |
| JPH0232349B2 JPH0232349B2 (en) | 1990-07-19 |
Family
ID=17593661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61278177A Granted JPS63130760A (en) | 1985-06-17 | 1986-11-21 | Formation of dark red colored plating |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63130760A (en) |
-
1986
- 1986-11-21 JP JP61278177A patent/JPS63130760A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0232349B2 (en) | 1990-07-19 |
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