JPH0776437B2 - Alloy steel with excellent corrosion resistance and workability - Google Patents
Alloy steel with excellent corrosion resistance and workabilityInfo
- Publication number
- JPH0776437B2 JPH0776437B2 JP61277830A JP27783086A JPH0776437B2 JP H0776437 B2 JPH0776437 B2 JP H0776437B2 JP 61277830 A JP61277830 A JP 61277830A JP 27783086 A JP27783086 A JP 27783086A JP H0776437 B2 JPH0776437 B2 JP H0776437B2
- Authority
- JP
- Japan
- Prior art keywords
- corrosion resistance
- workability
- alloy
- content
- excellent corrosion
- 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.)
- Expired - Lifetime
Links
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- Electroplating Methods And Accessories (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は亜鉛をベースとするめっき鋼材に関するもので
あり、さらに詳しくは、ZnにAl,Fe,Siを含む合金めっき
層を有する耐食性および加工性にすぐれた合金めっき鋼
材に関するものである。Description: TECHNICAL FIELD The present invention relates to a zinc-based plated steel material, and more specifically, to corrosion resistance and workability having an alloy plating layer containing Al, Fe and Si in Zn. The present invention relates to an alloy-plated steel material having excellent properties.
（従来の技術とその問題点） 薄板，形鋼，ボルト，鋼線等の鉄鋼材料の耐食性ならび
に加工性の向上を目的として、近年、多くの亜鉛をベー
スとする合金めっき技術が開発されている。例えば、特
公昭46−7161号公報にはZn−Al系、特公昭54−33223号
公報にはZn−Al−Mg系、特表昭57−500475号公報にはZn
−Al−ミッシュメタル系、特開昭56−112452号公報には
Zn−Al−Na系、特開昭58−177446号公報にはZn−Al−Si
系、特公昭60−33892号公報にはZn−Al−Si−Mg系が公
表されている。これらはいずれも加工性，耐食性ともに
従来の亜鉛めっきより優れているものの、最近の過酷な
冷間加工あるいは使用環境にてらし合せて考えると、必
ずしも十分な性能を有しているとは言えない。(Prior art and its problems) In recent years, many zinc-based alloy plating technologies have been developed for the purpose of improving corrosion resistance and workability of steel materials such as thin plates, shaped steel, bolts, and steel wires. . For example, Japanese Patent Publication No. 46-7161 discloses Zn-Al system, Japanese Patent Publication No. 54-33223 discloses Zn-Al-Mg system, and Japanese Patent Publication No. 57-500475 discloses Zn system.
-Al-Misch metal type, in Japanese Patent Laid-Open No. 56-112452
Zn-Al-Na system, JP-A-58-177446 discloses Zn-Al-Si
System, Japanese Patent Publication No. 60-33892 discloses a Zn-Al-Si-Mg system. Although all of them are superior in workability and corrosion resistance to conventional galvanization, they cannot necessarily be said to have sufficient performance when considered in consideration of recent severe cold working or use environment.
（発明の目的） 本発明の目的は、めっき層の組成を改良することにより
冷間加工性ならびに耐食性が従来の亜鉛をベースとする
合金めっきにくらべて一段とすぐれた合金めっき鋼材を
提供することにある。(Object of the Invention) An object of the present invention is to provide an alloy-plated steel material having improved cold workability and corrosion resistance by improving the composition of the plating layer, as compared with the conventional zinc-based alloy plating. is there.
（問題点を解決するための手段） すなわち、本発明の要旨は下記のとおりである。(Means for Solving Problems) That is, the gist of the present invention is as follows.
（１）15〜40％のALおよび７〜40％のFeを含有し、残余
が実質的にZnからなる合金めっき層を有することを特徴
とする耐食性および加工性にすぐれた合金めっき鋼材。(1) An alloy-plated steel material having excellent corrosion resistance and workability, which has an alloy plating layer containing 15 to 40% AL and 7 to 40% Fe and the balance being substantially Zn.
（２）15〜40％のAl,7〜40％のFe,および0.5〜７％のSi
を含有し、残余が実質的にZnからなる合金めっき層を有
することを特徴とする耐食性および加工性にすぐれた合
金めっき鋼材。(2) 15-40% Al, 7-40% Fe, and 0.5-7% Si
An alloy-plated steel material which is excellent in corrosion resistance and workability, and which has an alloy-plated layer containing Al and the remainder being substantially Zn.
以下、本発明にかかわるめっき層成分について説明す
る。The components of the plating layer according to the present invention will be described below.
Al含有量に関しては、Alは耐食性に有効な元素であるた
めAl含有量が15％未満では耐食性を保証することができ
ず、一方、40％を越えると冷間加工性が劣化する。よっ
て、Al含有量は15〜40％とする。Regarding Al content, since Al is an element effective for corrosion resistance, if the Al content is less than 15%, the corrosion resistance cannot be guaranteed, while if it exceeds 40%, the cold workability deteriorates. Therefore, the Al content is 15-40%.
Fe含有量に関しては、Fe含有量が７％未満では冷間加工
性が不十分であり、一方、40％を越えると耐食性を保証
することができない。よって、Fe含有量は７〜40％とす
る。Regarding the Fe content, if the Fe content is less than 7%, the cold workability is insufficient, while if it exceeds 40%, the corrosion resistance cannot be guaranteed. Therefore, the Fe content is 7-40%.
Siは耐食性を向上させる元素であり、含有量が.05％未
満ではこの効果は期待できず、また、７％を越えると耐
食性向上効果は飽和するため、その含有量は0.5〜７％
とする。Si is an element that improves corrosion resistance, and if the content is less than .05%, this effect cannot be expected, and if it exceeds 7%, the corrosion resistance improving effect is saturated, so the content is 0.5 to 7%.
And
（実施例） 3.2mmの普通炭素鋼線に電気めっき法によりZn−Feめっ
きを施し、次いで、このめっき層に拡散浸透法によりAl
とSiを含有せしめた。なお、２種類の比較鋼は溶融めっ
き法で製造した。(Example) Zn-Fe plating was applied to a 3.2 mm ordinary carbon steel wire by an electroplating method, and then this plated layer was Al-dipped by a diffusion infiltration method.
And Si were included. The two types of comparative steels were manufactured by the hot dipping method.
耐食性の評価は、1,000時間の塩水噴霧（JIS Z 2371）
における腐食減量を純亜鉛めっきと比較する方法で行な
い、下記（１）式を以って定量化した。Corrosion resistance is evaluated by 1,000-hour salt spray (JIS Z 2371).
The corrosion weight loss in Example 1 was compared with that of pure zinc plating and quantified by the following equation (1).
また、めっき層の冷間加工性の評価は以下の方法で行な
った。 The cold workability of the plated layer was evaluated by the following method.
めっき鋼線をダイスを用いて１パス当り約20％の減面率
で伸線し、各パス毎にめっの層断面を光学顕微鏡で観察
することにより、（２）式で示す伸線加工限界をもって
めっき層の冷間加工性を評価した。Wire drawing of plated steel wire with a die at a surface reduction rate of about 20% per pass, and observing the cross-section of each layer with an optical microscope for each pass, the wire drawing process shown in equation (2) The cold workability of the plating layer was evaluated with a limit.
ここでdo：めっき鋼線（素線）の直径（mm） d :めっき層にミクロンクラックが発生したとき
の鋼線直径（mm） 表１でNo.1〜No.6はAl含有量について、また、No.7〜N
o.11はFe含有量について、さらにNo.12〜No.17はSi含有
量について、それらが耐食性および加工性におよぼす影
響を示したものである。No.18およびNo.19は比較とする
Zn−Al系合金めっき鋼線である。 Here d o: diameter of the plated steel wire (wire) (mm) d: steel wire diameter (mm) Table 1 when microns cracks occurred in plating layer No.1~No.6 for Al content , No.7 ~ N
o.11 shows the effect of Fe content, and No. 12 to No. 17 shows the effect of Si content on corrosion resistance and workability. No. 18 and No. 19 are for comparison
It is a Zn-Al alloy plated steel wire.
表１に示すように、Al含有量を16〜36％とすることによ
り、またFe含有量を７〜35％とすることにより、耐食性
が2.7倍以上、かつ、伸線加工限界が78％以上と比較鋼
にくらべて大幅にすぐれた性能を有するめっき鋼線が得
られる。また、No.9とNo.12を比較するとSiを0.3％添加
してもその効果はみとめられないが、0.7％以上添加し
たNo.13〜No.17では耐食性が著しく向上する。しかし、
No.16とNo.17では耐食性に差がみとめられず、これより
Siの添加効果は約７％で飽和することがわかる。As shown in Table 1, by setting the Al content to 16 to 36% and the Fe content to 7 to 35%, the corrosion resistance is 2.7 times or more, and the wire drawing limit is 78% or more. It is possible to obtain a plated steel wire that has significantly better performance than the comparative steel. Further, comparing No. 9 and No. 12, the effect cannot be seen even if Si is added by 0.3%, but the corrosion resistance is remarkably improved in No. 13 to No. 17 in which 0.7% or more is added. But,
No difference was found in corrosion resistance between No. 16 and No. 17,
It can be seen that the effect of Si addition is saturated at about 7%.
（発明の効果） 以上述べてきた如く、本発明において規定する範囲の成
分からなる合金めっき層を有する鋼線は耐食性がきわめ
て良好であり、腐食の激しい環境でも使用でき、また、
伸線加工という著しく過酷な冷間加工にも十分耐えうる
すぐれた加工性を有するため、曲げ加工やプレス加工を
行なってもめっの層の剥離やクラックは生じない。 (Effects of the Invention) As described above, the steel wire having the alloy plating layer containing the components in the range specified in the present invention has extremely good corrosion resistance and can be used even in a severely corrosive environment.
Since it has excellent workability that can withstand extremely severe cold working such as wire drawing, peeling and cracking of the lamella layer do not occur even when bending or pressing is performed.
以上、鋼線について述べてきたが、薄鋼板，形鋼，棒
鋼，ボルトなど一般の鋼材についても同様な合金めっき
を行なうことで、耐食性ならびに加工性の良好な合金め
っき鋼材を得ることが可能である。Although the steel wire has been described above, it is possible to obtain an alloy-plated steel material having good corrosion resistance and workability by performing similar alloy plating on general steel materials such as thin steel plates, shaped steel, steel bars, and bolts. is there.
Claims (2)
し、残余が実質的にZnからなる合金めっき層を有するこ
とを特徴とする耐食性および加工性にすぐれた合金めっ
き鋼材。1. An alloy-plated steel material having excellent corrosion resistance and workability, characterized by having an alloy plating layer containing 15 to 40% A1 and 7 to 40% Fe, and the balance being substantially Zn. .
〜７％のSiを含有し、残余が実質的にZnからなる合金め
っき層を有することを特徴とする耐食性および加工性に
すぐれた合金めっき鋼材。2. A1 of 15-40%, Fe of 7-40%, and 0.5
An alloy-plated steel material having excellent corrosion resistance and workability, which comprises an alloy-plated layer containing ~ 7% Si and the balance being substantially Zn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61277830A JPH0776437B2 (en) | 1986-11-22 | 1986-11-22 | Alloy steel with excellent corrosion resistance and workability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61277830A JPH0776437B2 (en) | 1986-11-22 | 1986-11-22 | Alloy steel with excellent corrosion resistance and workability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63134690A JPS63134690A (en) | 1988-06-07 |
| JPH0776437B2 true JPH0776437B2 (en) | 1995-08-16 |
Family
ID=17588859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61277830A Expired - Lifetime JPH0776437B2 (en) | 1986-11-22 | 1986-11-22 | Alloy steel with excellent corrosion resistance and workability |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0776437B2 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5677354A (en) * | 1979-11-27 | 1981-06-25 | Chuetsu Gokin Chuko Kk | Brass alloy with superior oxidation resistance at high temperature |
| JPS5952948B2 (en) * | 1980-01-29 | 1984-12-22 | 三菱マテリアル株式会社 | Zinc alloy for hot-dip plating |
| JPS5910985B2 (en) * | 1980-09-09 | 1984-03-13 | 財団法人電気磁気材料研究所 | Al-Zn-based vibration absorbing alloy with high damping ability and method for producing the same |
| JPS6043477A (en) * | 1983-08-18 | 1985-03-08 | Nisshin Steel Co Ltd | Hot dip galvanized steel sheet having superior resistance to stripping due to corrosion |
| JPS61204361A (en) * | 1985-03-08 | 1986-09-10 | Nippon Steel Corp | Vibration-damping material having excellent press formability |
-
1986
- 1986-11-22 JP JP61277830A patent/JPH0776437B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63134690A (en) | 1988-06-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |