JPS61139694A - Surface treated steel plate having excellent 2-piece can formability - Google Patents
Surface treated steel plate having excellent 2-piece can formabilityInfo
- Publication number
- JPS61139694A JPS61139694A JP26083884A JP26083884A JPS61139694A JP S61139694 A JPS61139694 A JP S61139694A JP 26083884 A JP26083884 A JP 26083884A JP 26083884 A JP26083884 A JP 26083884A JP S61139694 A JPS61139694 A JP S61139694A
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- plating
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- steel plate
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Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は缶胴及び缶蓋より構成される2ピース缶の缶胴
、特にしごき加工を伴う2ピース缶胴用として成形性に
優れた表面処理鋼板に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a two-piece can body consisting of a can body and a can lid, particularly a surface with excellent formability for a two-piece can body that requires ironing. This relates to treated steel sheets.
従来2ピース缶成形用素材として電解Snメッキ鋼板(
以下ブリキと称する)、電解クロムメッキ鋼板C以下T
FS−CTと称する)が使用されてきたが、特にしごき
加工等きびしい加工が施される2ピース缶胴(以下01
缶と称す)には、一般にブリキが使用されてきた。従来
DI缶に使用されるブリキとしては片面当りSn量が2
800mg/m2〜5B00mg/m2であったが、S
nは高価な金属であり、DI缶用ブリキの高コスト化の
ためSnメッキ量の低減化が要望されていた。Conventionally, electrolytic Sn-plated steel sheets (
(hereinafter referred to as tinplate), electrolytic chromium plated steel sheet C (hereinafter referred to as T)
FS-CT) has been used, but two-piece can bodies (hereinafter referred to as 01
Tinplate has generally been used for cans (referred to as cans). Conventional tinplate used for DI cans has a Sn content of 2 per side.
800mg/m2 to 5B00mg/m2, but S
Since n is an expensive metal, it has been desired to reduce the amount of Sn plating due to the high cost of tinplate for DI cans.
DI缶は缶胴成形時、ダイス又はポンチによって素材鋼
板に強力なしごき加工が施され、Snメッキ層はその際
固体潤滑剤としての作用を持つことが知られている。そ
してその原理から鋼板に一定以上のSn量が存在しなけ
れば、しごき成形時の固体潤滑効果が十分でなく、従来
のプリキレこおいてはSn量が片面当り、2000mg
/rrF以よ必要とされてきた。これLt、Snメッキ
前が片晶当670、 OOm g / m’以下である
と、DI缶成形エネルギが増大し、部分的にSnメッキ
層の潤滑効果不足による缶胴のちぎれが発生したり、又
工具としてのダイス、ポンチ等の寿命が短い等の問題が
発生するからである。When forming a DI can body, a raw steel plate is subjected to strong ironing using a die or a punch, and it is known that the Sn plating layer acts as a solid lubricant during this process. Based on this principle, if the steel sheet does not contain a certain amount of Sn, the solid lubricant effect during ironing will not be sufficient.
It has been needed since /rrF. If the single crystal hitch before Sn plating is less than 670, OOm g/m', the DI can forming energy will increase, and the can body may tear partially due to insufficient lubricating effect of the Sn plating layer. Moreover, problems such as the short lifespan of tools such as dies and punches occur.
このため従来鋼板表・裏のSnメッキ量を変え、差厚メ
ッキしたり、又鋼板表面の粗度、潤滑油の種類、さらに
工具の表面粗度を変える等、種々の試みが行われてきた
が、その効果は十分なものでなかったのが実情である。For this reason, various attempts have been made in the past, such as changing the amount of Sn plating on the front and back sides of the steel plate, applying differential plating thickness, and changing the roughness of the steel plate surface, the type of lubricant, and even the surface roughness of the tool. However, the reality is that the effects were not sufficient.
本発明は、上述した問題点を解消する低コストの薄Sn
メッキでしごき加工成形性に優れた2ピース缶素材とな
る新表面処理鋼板を得ることを目的としたものである。The present invention provides a low-cost thin Sn film that solves the above-mentioned problems.
The purpose of this work is to obtain a new surface-treated steel sheet that can be used as a two-piece can material with excellent ironing formability through plating.
〔問題点の解決手段〕
本発明者等は上述した目的を満足する新表面処理鋼板を
得るため、鋭意研究努力した結果以下に述べる2ピース
缶成形性に優れた表面処理鋼板を得たのである。即ち、
少くとも製缶後缶外面側に該当する鋼板表面に対し、F
e−Sn合金層が存在しない不連続且つ粒子状の単独S
nメッキ被覆層を設け、そのメッキ被覆量が2000
m g / m以下でSn被覆率が90ヅ、以下の条件
を満足する。[Means for solving the problem] In order to obtain a new surface-treated steel sheet that satisfies the above-mentioned objectives, the inventors of the present invention have made extensive research efforts and have obtained the following surface-treated steel sheet with excellent formability for two-piece cans. . That is,
At least on the steel plate surface corresponding to the outer surface of the can after can manufacturing, F
Discontinuous and particulate S with no e-Sn alloy layer
n plating coating layer is provided, and the plating coating amount is 2000
The Sn coverage is 90㎜ at less than mg/m and satisfies the following conditions.
新表面処理は、薄Snメッキ鋼板にもかかわらず2ピー
ス缶のきびしいしごき加工にも耐える新素材であること
が判明した。なお、本発明の新表面、 処理鋼板は1.
上述したSnメッキ被覆層の下地としてFe、Zn、C
r、Pの1種又は2種以上3〜100 m g / r
d微量メッキ被覆せしめればSnメッキ被覆層の形成制
御が容易になり、又Snメッキ被覆層の上層ばメッキ被
覆量として50〜500 m g / rlの連続した
S−nメッキ被覆層を重層せしめると表面光沢が良化す
ることが判った。It was discovered that the new surface treatment allows the new material to withstand the harsh ironing process of two-piece cans, even though it is a thin Sn-plated steel sheet. The new surface and treated steel sheet of the present invention is 1.
Fe, Zn, and C are used as the base for the Sn plating layer described above.
One or more types of r, P 3 to 100 mg/r
d If a small amount of plating is applied, the formation of the Sn plating layer can be easily controlled, and if the Sn plating layer is overlaid, a continuous Sn plating layer with a plating amount of 50 to 500 mg/rl is overlaid. It was found that the surface gloss improved.
以下に本発明の詳細な説明する。 The present invention will be explained in detail below.
本発明者がDI成形時のSnメッキ層の役割を十分研究
した結果、Snメッキ層にり、I加工時の固体潤滑剤と
しての機能を付与するためには必ずしもSnメッキ層は
鋼板表面を均一に被覆する必要はなく、鋼板表面に不均
一に粒子状形態として存在していれば良く、Snメッキ
層がこのような形態を持つ時DI缶成形時に使用される
潤滑油の保持性に優れていることから、DI缶成形性が
、良好であることを知見した。As a result of thorough research into the role of the Sn plating layer during DI forming, the inventor found that the Sn plating layer does not necessarily have to be uniform on the surface of the steel sheet in order to function as a solid lubricant during I processing. It is not necessary to coat the Sn plating layer on the surface of the steel sheet, it only needs to be present in a non-uniform particulate form on the surface of the steel sheet, and when the Sn plating layer has such a form, it has excellent retention of lubricating oil used during DI can forming. It was found that the DI can formability was good.
本発明表面処理鋼板のメッキ層概念図を第1図に示すが
、このように本発明表面処理鋼板しこおいては、メッキ
されるS=量自体は片面当り200Q m g / i
r?以下と従来のブリキに比較し簿メッキであるが、粒
子状Snメッキ層1が地鉄2の表面に断続的に分布して
いるため、その見掛は上のメッキ層厚は通常の連続した
Snメッキ層を有した同−Snメッキ量のブリキに対し
て大きく、かつ粒子状Sn層の谷部3にDI成形時の潤
滑油保持効果が生じて、従来より゛Snメッキ量が薄く
ても優れた6−I成形性を有しているものと思われる。A conceptual diagram of the plating layer of the surface-treated steel sheet of the present invention is shown in FIG. 1. As shown in FIG.
r? Compared to the conventional tin plate shown below, it is a standard plating, but since the particulate Sn plating layer 1 is distributed intermittently on the surface of the base steel 2, the apparent thickness of the upper plating layer is the same as that of a normal continuous plating layer. It is larger than the tin plate with the same amount of Sn plating and has a lubricating oil retention effect during DI molding in the valleys 3 of the particulate Sn layer, making it easier to use even if the amount of Sn plating is thinner than before. It seems to have excellent 6-I moldability.
そして本発明者等が電子皺微鍼等による鋼板表=4−
面のSn被覆性と実際のDI缶加工性の関係を詳細に調
査した結果、鋼板上のSn被覆率を90%以下となせば
上記のようなメカニズムで芹面当り2000mg/M以
下の薄Snメッキ鋼板においても良好なりI缶成形性が
得られることを確認したものである。そしてこの場合、
そのSn粒子の大きさは特に限定はしないが、通常1μ
程度で良く、望ましくは0.5から2μの範囲が好まし
い。As a result of a detailed investigation by the present inventors into the relationship between the Sn coverage of the surface of the steel plate (=4-) and the actual workability of DI cans using electronic wrinkle microacupuncture, etc., the inventors found that the Sn coverage on the steel plate could be kept at 90% or less. It has been confirmed that by the above mechanism, good I-can formability can be obtained even in a thin Sn-plated steel sheet with a coating weight of 2000 mg/M or less. And in this case,
The size of the Sn particles is not particularly limited, but is usually 1 μm.
It may be within the range of 0.5 to 2 μm.
次にSnメッキ被覆層を本発明のような形態にするため
の手法であるが、これは特に限定′しないが、一般的に
はSnメッキ電解条件変更、Snメッキ浴の変更、さら
にSnnメッキ銅鋼板上前メッキ処理を施す場合等が利
用できる。ここで、鋼板にF’e、2ny Cr、Pの
1種又は2種以上を鋼板上に微量被覆したのち、Snメ
ッキを施す方法は本発明者が初めて知見したもので、こ
れらを鋼板上に微量メッキした後Snメッキを施すと、
Snメッキ層電析状態に及ぼすSnメッキ電解条件及び
Snメッキ浴条件の影響がより敏感になり、本発明にお
けるSnメッキ層状態形成を容易にコントロールするこ
とが可能になる。これらFe。Next, there are methods for forming the Sn-plated coating layer into the form of the present invention. Although this is not particularly limited, it generally involves changing the Sn-plating electrolytic conditions, changing the Sn-plating bath, and further changing the Sn-plated copper layer. It can be used when performing pre-plating treatment on steel plates. Here, the inventor discovered for the first time the method of coating a steel plate with a small amount of one or more of F'e, 2ny Cr, and P, and then applying Sn plating. If Sn plating is applied after trace plating,
The influence of Sn plating electrolytic conditions and Sn plating bath conditions on the Sn plating layer electrodeposition state becomes more sensitive, and it becomes possible to easily control the formation of the Sn plating layer state in the present invention. These Fe.
Zn、Cr、’Pの1種又は2糧以上の被覆する方法は
全く限定しないが、その被覆量は微量でよく、片面当り
1 <) Om’ g/ m以下で十分な効果を有し、
又合金被覆を行う場合、その構成割合も特に限定しない
。しかしこの中でも特に鋼板上のCr及びPの被覆は大
きな効果を持っているので、この2元素の被覆量は多い
方が良<80mg’/mまで許容できる。The method of coating with one or more of Zn, Cr, and 'P is not limited at all, but the amount of coating may be a small amount, and it has a sufficient effect at less than 1 <) Om' g/m per side,
In addition, when alloy coating is performed, its composition ratio is not particularly limited. However, since the coating of Cr and P on the steel sheet has a particularly great effect, the coating amount of these two elements should be as large as possible.Up to <80 mg'/m can be tolerated.
又本発明においてはDI缶加工時特にしごき加工がきび
しい缶外面側となる面にのみ本発明を適用し、反対面は
通常のSnメッキ処理を施しても良、く、さらに本発明
限定範囲内であれば、本発明を鋼板衣・裏でそれぞれ異
った量に被覆した差厚メッキ被覆とすることもできる。In addition, in the present invention, the present invention is applied only to the outer surface of the can, which is particularly subjected to severe ironing during processing of DI cans, and the opposite side may be subjected to ordinary Sn plating treatment, and furthermore, within the scope of the present invention. If so, the present invention can be applied to a steel plate with a different thickness plating coating on the outer and back sides of the steel plate in different amounts.
そして本発明において、特に表面光沢が要求される場合
、不連続で且つ粒子状のSnメッキ被覆上層にさらに通
常の方法で薄い連続したSnメッキ処理を施すこともで
きる。この場合、第1図の谷部3に連続したSnメッキ
層4が重層され第2図の如く若干谷部3は減少するが潤
滑油が停留する範囲で重層すればDI加工に耐え且つ最
外表面が連続化するため表面光沢が良好となる。なお、
DI加工に必要なSnメッキ層の谷部3の存在は必要で
あるから、おのずと」二層に重層するSnメッキ層4の
被覆量は50〜500 m g / rrfに限定され
る。50 m g / r1未満ではひうたく向」二の
効果がなく、500 m g / rrf超ではDI成
形性が劣化する。In the present invention, when particularly high surface gloss is required, a thin continuous Sn plating treatment can be further applied to the discontinuous and particulate Sn plating upper layer by a conventional method. In this case, a continuous Sn plating layer 4 is overlaid on the trough 3 in Figure 1, and the trough 3 is slightly reduced as shown in Figure 2, but if the layer is overlaid within the range where lubricating oil remains, it can withstand DI processing and the outermost layer 4 is overlaid. Since the surface is continuous, the surface gloss is good. In addition,
Since the existence of the valley portion 3 of the Sn plating layer necessary for DI processing is necessary, the coverage amount of the two-layer Sn plating layer 4 is naturally limited to 50 to 500 mg/rrf. If it is less than 50 mg/rr1, there will be no significant effect on the application, and if it exceeds 500 mg/rrf, the DI formability will deteriorate.
このような処理を経た後本発明においては通常の処理に
よる不動態化処理、例えば重クロム酸ソーダ溶液中、リ
ン酸塩水水溶液中等での浸漬処理又は陰極電解処理等公
知の処理を適用することができ、さらに保管中の耐錆性
付与のため塗油が行われ製品となるものである。After such treatment, in the present invention, it is possible to apply a passivation treatment by a normal treatment, for example, a known treatment such as immersion treatment in a sodium dichromate solution, an aqueous phosphate solution, or a cathodic electrolysis treatment. The product is then coated with oil to provide rust resistance during storage.
ところで本発明と類似のSnメッキ被覆を形成した表面
処理鋼板として特公昭59− i−00285に溶接缶
用表面処理鋼板として、すでに公知であるが、該鋼板は
本発明のようにしごき加工が施されることのないシーム
溶接缶用の素材であり、その目的が異なる上、メッキ層
基本構造もFe−Sn合金上に粒子状Snメッキ層を配
するもので、その目的、思想共本発明とは全く異なるも
のである。Incidentally, a surface-treated steel sheet having a Sn plating coating similar to that of the present invention is already known as a surface-treated steel sheet for welded cans in Japanese Patent Publication No. 59-I-00285. It is a material for seam-welded cans that is never used in seam-welded cans, and its purpose is different, and the basic structure of the plating layer is a particulate Sn plating layer on an Fe-Sn alloy, and its purpose and philosophy are both the same as the present invention. are completely different.
次に本発明の実施例について説明する。Next, examples of the present invention will be described.
通常の方法で表面清浄化した板厚0.32mmの冷延鋼
板両面にフェロスタン浴を用いて電解電流密度0 、5
A / d n(の条件で片面当り1100m g
/ rrfのSnメッキ被覆を形成した。なおこのSn
メッキ層の鋼板表面被覆率は電気化学的手法及びE P
MAによる表面分析結果では90%以下であった。そし
てSnメッキ被覆形成後重クロム酸ソーダ水溶液中で陰
極電解処理し、鋼板両面にクロメート被覆層を形成させ
、引き続き、鋼板両面にATBCの油膜層゛を形成させ
た。Electrolytic current densities of 0 and 5 were applied to both sides of a cold-rolled steel sheet with a thickness of 0.32 mm, which had been surface-cleaned using a conventional method, using a ferrostane bath.
1100mg per side under the conditions of A/dn(
/rrf Sn plating coating was formed. Furthermore, this Sn
The steel plate surface coverage of the plating layer was determined by electrochemical method and EP
The surface analysis result by MA was 90% or less. After forming the Sn plating coating, cathodic electrolysis treatment was performed in an aqueous solution of sodium dichromate to form a chromate coating layer on both sides of the steel plate, and subsequently, an oil film layer of ATBC was formed on both sides of the steel plate.
〔実施例2〕
実施例1と同じ冷延鋼板両面に、フェロスタン浴中から
光沢添加剤を一部除去したメッキ浴を用いて、電流密度
15’A/d’mfの条件で片面当り800 m g
/ rrl”のSnメッキ被覆を形成した。Snメッキ
層の鋼板表面被覆率は実施例1と同様な測定で70%以
下であった。クロメート処理被覆等その他項目は実施例
1と同じ。[Example 2] Both sides of the same cold-rolled steel sheet as in Example 1 were plated at a plating bath of 800 m per side at a current density of 15'A/d'mf using a ferrostane bath in which some of the brightness additives had been removed. g
/rrl'' was formed. The steel plate surface coverage rate of the Sn plating layer was measured in the same manner as in Example 1 and was 70% or less. Other items such as the chromate treatment coating were the same as in Example 1.
実施例1においてSnメッキ被覆時の電解電流密度を2
0A/dm2とした比較例で、Snメッキ層の鋼板表面
被覆率は実施例1と同様な測定法で95〜]−00%で
あった。その他項目は実施例1゜と同じ。In Example 1, the electrolytic current density during Sn plating was set to 2.
In the comparative example where the temperature was 0 A/dm2, the steel sheet surface coverage rate of the Sn plating layer was 95 to ]-00% by the same measuring method as in Example 1. Other items are the same as in Example 1.
〔実施例3〕
実施例2において2ピース缶製缶時缶外面側となす面及
び缶内側となす面のSnメッキ被覆量をそれぞれ800
m g / rrr 、 500 m g / rr
i’とした実施例でその他項目は実施例1と同じ。[Example 3] In Example 2, when making a two-piece can, the amount of Sn plating on the surface facing the outside of the can and the surface facing inside the can was 800% each.
mg/rr, 500 mg/rr
The other items are the same as in Example 1.
〔比較例2〕
比較例1において2ピース缶製缶時缶外面側となす面及
び缶内面側となす面のSnメッキ被覆量をそれぞれ80
0mg/rrr、500mg/rrrとした比較例でそ
の他項目は比較例1と同じ。[Comparative Example 2] In Comparative Example 1, when making a two-piece can, the amount of Sn plating on the surface facing the outside of the can and the surface facing the inside of the can was 80%.
Comparative examples with 0 mg/rrr and 500 mg/rrr, and other items are the same as Comparative Example 1.
〔実施例4〕
実施例2におけるSnメッキ被覆層を鋼板両面に片面当
り700 m g /♂影形成た後さらに通常のフェロ
スタン浴を用いて、電解電流密度15A/d督の条件で
鋼板両面に200 m g / rr?のSnメッキ被
覆を重層被覆させた実施例でその他項目は実施例2と同
じ。[Example 4] After forming the Sn plating coating layer in Example 2 on both sides of the steel plate at a density of 700 mg/♂ per side, using a normal ferrostane bath, both sides of the steel plate were coated at an electrolytic current density of 15 A/d. 200mg/rr? The other items are the same as in Example 2.
〔比較例3〕
実施例1においてSnメッキ被覆後Snの融点以上での
加熱処理を施こすことによって鋼板両面に片面当り40
0mg/ボのF a −S n合金層を形成させた比較
例、その他項目は実施例1と同じ。[Comparative Example 3] In Example 1, after coating with Sn plating, heat treatment was performed at a temperature higher than the melting point of Sn, so that a coating of 40% per side was applied to both sides of the steel plate.
A comparative example in which a F a -S n alloy layer of 0 mg/bo was formed, and other items were the same as in Example 1.
〔実施例5〕
実施例1−においてSnメッキ被覆後、クロメート処理
被覆に変えて、リン酸塩水浴中での陰極電解処理を施し
た実施例で、その他項目は実施例1と同じ。[Example 5] This is an example in which a cathodic electrolytic treatment in a phosphate water bath was performed in place of a chromate treatment coating after Sn plating coating in Example 1-, and other items were the same as in Example 1.
〔実施例6〕
通常の方法で表面清浄化した鋼板両面に(1)に示す浴
を用いてFe−P合金メッキを施し、鋼板上にP換算で
5 m g / rrr被覆した。そして通常のフェロ
スタン浴を用いて電解電流密度5A/dポで鋼板両面に
片面当り800 m g / mのSnメッキ被覆を施
した。Snメッキ層の鋼板表面被覆率は、実施例1と同
様測定法で90%以下であった。その他項目は実施例1
と同じ。[Example 6] Fe-P alloy plating was applied to both surfaces of a steel plate whose surface had been cleaned by a conventional method using the bath shown in (1), and the steel plate was coated with 5 mg/rrr in terms of P. Then, a Sn plating coating of 800 mg/m per side was applied to both sides of the steel plate at an electrolytic current density of 5 A/d using a normal ferrostane bath. The steel sheet surface coverage rate of the Sn plating layer was determined to be 90% or less by the same measurement method as in Example 1. Other items are Example 1
Same as.
(1) F e S O4・7 H20: 100 g
/ QH3PO,: 40 g/Q
H3PO4: 20g/Q
以上本発明実施例、比較例と合せて従来例として片面当
り5600mg/r&(内F e −S n合金400
m g / m )の電気メツキブリキ(以下50番
ブリキと称する)を、2ピース缶加工試験機を使用して
、その2ピース缶成形性を評価した。(1) F e SO4・7 H20: 100 g
/ QH3PO,: 40 g/Q H3PO4: 20 g/Q In addition to the above examples of the present invention and comparative examples, the conventional example was 5600 mg/r& (of which Fe-Sn alloy 400
The two-piece can formability of electroplated tinplate (hereinafter referred to as No. 50 tinplate) with a weight of 1.0 mg/m was evaluated using a 2-piece can processing tester.
供試材はそれぞれ直径140mmの円板に打ち抜き、次
に直径70mmのポンチを用いて絞り加工し、カップを
成形した。そしてこのカップに市販の2ピース缶成形加
工用潤滑油を塗布し、全3段から構成されるアイアニン
グ試験機を用いて市販350 m 0缶サイズに連続製
缶した。そしてその成形後の缶内面外面の状態、連続製
缶性及びアイアニング第1段、2段、3段目の成形荷重
を測定し、評価した。実験結果は第1表に示す。Each sample material was punched into a disk with a diameter of 140 mm, and then drawn using a punch with a diameter of 70 mm to form a cup. Then, a commercially available lubricating oil for two-piece can molding was applied to this cup, and a can was continuously formed into a commercially available 350 m 0 can size using an ironing tester consisting of three stages. Then, the condition of the inner and outer surfaces of the can after molding, continuous can formability, and molding loads at the first, second, and third stages of ironing were measured and evaluated. The experimental results are shown in Table 1.
第1表に示す如く、本発明例はアイアニング加工後の缶
内面外面状態、連続製缶性共良好で、又アイアニング加
工時の成形荷重も小さく、従来例50番ブリキとほぼ同
等な性能を有するが、本発明比較例は、本発明実施例と
同−Snメッキ被覆景であるにもかかわらず、各特性共
劣っており、工業的に安定生産することは不可能である
。As shown in Table 1, the examples of the present invention have good can internal and external surface conditions after ironing, good continuous can manufacturing performance, and have a small forming load during ironing, and have almost the same performance as the conventional No. 50 tinplate. However, although the Comparative Example of the present invention has the same -Sn plating coating as the Example of the present invention, it is inferior in each characteristic, and it is impossible to stably produce it industrially.
−12=
〔発明の効果〕
従来アイアニング加工を伴う2ピース缶を工業的に安定
して生産することが不可能と言われてきた片面当りSn
メッキ被覆量2000 m g / mF以下の表面処
理鋼板も、本発明実施例に示した如く、Snメッキ被覆
層を不連続、かつ粒子状に被覆することによって工業的
に安定した成形が可能となり、低コストな2ピース缶を
安定して供給することができる。−12= [Effect of the invention] Sn per side, which has traditionally been said to be impossible to industrially and stably produce two-piece cans that require ironing.
Even surface-treated steel sheets with a plating coverage of 2000 mg/mF or less can be industrially and stably formed by coating the Sn plating layer discontinuously and in the form of particles, as shown in the examples of the present invention. It is possible to stably supply low-cost two-piece cans.
第1図は本発明による表面処理鋼板の断面組成を示す摸
写図、第2図は第1図の別態様による断面組成模写図で
ある。
1:粒子状Snメッキ層
2:地鉄
3:谷
4:Snメッキ層
第1図
第2図
手続補正書
昭和60年4月72日FIG. 1 is a schematic drawing showing the cross-sectional composition of a surface-treated steel sheet according to the present invention, and FIG. 2 is a schematic drawing showing the cross-sectional composition according to another embodiment of FIG. 1. 1: Particulate Sn plating layer 2: Substrate 3: Valley 4: Sn plating layer Figure 1 Figure 2 Procedure amendment April 72, 1985
Claims (3)
しない不連続且つ粒子状のSnメッキ被覆層を設けてな
り、該Snメッキ被覆層の被覆量が2000mg/m^
2で且つSn被覆率が90%以下である2ピース缶成形
性に優れた表面処理鋼板。(1) A discontinuous and particulate Sn plating layer without an Fe-Sn alloy layer is provided on at least one side of the steel plate, and the coating amount of the Sn plating layer is 2000 mg/m^
2 and a Sn coverage of 90% or less, a surface-treated steel sheet with excellent formability for two-piece cans.
の1種又は2種以上のメッキ被覆層を設けた特許請求の
範囲第1項記載の2ピース缶成形性に優れた表面処理鋼
板。(2) Fe, Zn, Cr, P in the lower layer of the Sn plating coating layer
A surface-treated steel sheet with excellent formability for two-piece cans according to claim 1, which is provided with one or more types of plating coating layers.
0〜500mg/m^2の連続したSnメッキ被覆層を
重層せしめた特許請求の範囲第1項記載又は同第2項記
載の2ピース缶成形性に優れた表面処理鋼板。(3) The amount of plating on the top layer of the Sn plating layer is 5
A surface-treated steel sheet having excellent formability for two-piece cans as claimed in claim 1 or claim 2, comprising a continuous Sn plating coating layer of 0 to 500 mg/m^2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59260838A JPH0653955B2 (en) | 1984-12-12 | 1984-12-12 | Surface-treated steel plate for DI can |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59260838A JPH0653955B2 (en) | 1984-12-12 | 1984-12-12 | Surface-treated steel plate for DI can |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61139694A true JPS61139694A (en) | 1986-06-26 |
JPH0653955B2 JPH0653955B2 (en) | 1994-07-20 |
Family
ID=17353457
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59260838A Expired - Lifetime JPH0653955B2 (en) | 1984-12-12 | 1984-12-12 | Surface-treated steel plate for DI can |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0653955B2 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5723091A (en) * | 1980-07-17 | 1982-02-06 | Nippon Steel Corp | Steel plate for welded can and container and preparation thereof |
JPS60190597A (en) * | 1984-03-09 | 1985-09-28 | Toyo Kohan Co Ltd | Surface treated steel sheet for welded can and its production |
-
1984
- 1984-12-12 JP JP59260838A patent/JPH0653955B2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5723091A (en) * | 1980-07-17 | 1982-02-06 | Nippon Steel Corp | Steel plate for welded can and container and preparation thereof |
JPS60190597A (en) * | 1984-03-09 | 1985-09-28 | Toyo Kohan Co Ltd | Surface treated steel sheet for welded can and its production |
Also Published As
Publication number | Publication date |
---|---|
JPH0653955B2 (en) | 1994-07-20 |
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