JP3015850B2 - Weldable painted metal sheet with excellent peel resistance and coating adhesion - Google Patents
Weldable painted metal sheet with excellent peel resistance and coating adhesionInfo
- Publication number
- JP3015850B2 JP3015850B2 JP10022315A JP2231598A JP3015850B2 JP 3015850 B2 JP3015850 B2 JP 3015850B2 JP 10022315 A JP10022315 A JP 10022315A JP 2231598 A JP2231598 A JP 2231598A JP 3015850 B2 JP3015850 B2 JP 3015850B2
- Authority
- JP
- Japan
- Prior art keywords
- coating film
- metal sheet
- weldability
- weldable
- resistance
- 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 - Fee Related
Links
Landscapes
- Laminated Bodies (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、家庭電気製品等に
繁用される溶接可能塗装金属板（プレコート金属板）に
関し、詳細には、耐剥離性及び塗膜密着性に優れた溶接
可能塗装金属板に関するものである。本発明の金属板
は、アルミニウム板や銅板などの他、冷延鋼板、溶融亜
鉛めっき鋼板、電気亜鉛めっき鋼板、合金化溶融亜鉛め
っき鋼板、ステンレス鋼板、銅めっき鋼板、錫めっき鋼
板等種々の鋼板に適用されるものである。尚、以下の記
載では、本発明の代表例として鋼板を中心に説明するが
決してこれに限定する趣旨ではない。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weldable painted metal sheet (pre-coated metal sheet) frequently used in household electric appliances and the like, and more particularly, to a weldable paint excellent in peeling resistance and coating film adhesion. It relates to a metal plate. The metal sheet of the present invention includes, in addition to aluminum sheets and copper sheets, various steel sheets such as cold-rolled steel sheets, hot-dip galvanized steel sheets, electro-galvanized steel sheets, galvannealed steel sheets, stainless steel sheets, copper-plated steel sheets, and tin-plated steel sheets. It is applied to. In the following description, a steel sheet will be mainly described as a typical example of the present invention, but the present invention is not limited to this.
【０００２】[0002]
【従来の技術】従来より家庭電気製品用として、亜鉛系
めっき鋼板にスプレー塗装，電着塗装，粉体塗装等が施
された塗装鋼板が広く用いられてきた。しかし、近年で
は家電メーカーにおける塗装工程の省略を目的としたプ
レコート鋼板が繁用される様になっている。2. Description of the Related Art A coated steel sheet obtained by applying a spray coating, an electrodeposition coating, a powder coating or the like to a zinc-coated steel sheet has been widely used for household electric appliances. However, in recent years, pre-coated steel sheets for the purpose of omitting the painting process in home appliance manufacturers have become popular.
【０００３】ところが上記プレコート鋼板の塗膜は絶縁
皮膜からなる為、溶接することはできない。そこで、プ
レコート鋼板への溶接性付与を目的として、塗膜中に導
電性フィラーを添加する方法が提案されており、更には
低光沢等の特性付与を目指して、導電性フィラーの種類
や添加量等を制御した溶接可能プレコート鋼板が開示さ
れている。However, since the coating film of the above-mentioned precoated steel sheet is made of an insulating film, it cannot be welded. Therefore, a method of adding a conductive filler to a coating film for the purpose of imparting weldability to a precoated steel sheet has been proposed, and further, with the aim of imparting characteristics such as low gloss, the type and amount of the conductive filler added. There is disclosed a weldable precoated steel sheet in which the like is controlled.
【０００４】一方、最近ではユーザーサイドの多様な要
望に応えるべく、溶接性のみならず塗膜と鋼板との密着
性、更にはプレス摺動後における塗膜の耐剥離性に優れ
たプレコート鋼板の提供が切望されている。しかし、こ
の様な要求特性を全て満足することのできる鋼板は未だ
提供されていない。例えば特開昭６２−１９４４８に
は、溶接性に加え、低光沢で黒色の外観を発揮させるこ
とを目的として、塗膜中に、リン鉄粉とカーボンブラッ
クを含む導電性塗料を添加し、塗膜の乾燥厚みを５〜１
０μｍにした溶接可能黒色塗装鋼板が開示されている。
上記公報には、「リン鉄粉の添加による溶接性を有効に
発揮させる為には、塗膜厚さよりも粒径の大きな粒子を
添加することが必要であるが、粒径が大きくなり過ぎる
と塗膜が剥離し易くなる」という問題点が指摘されてい
るが、「かかる場合には潤滑剤を適切量添加すれば良
い」旨記載されており、潤滑剤の使用により導電性フィ
ラーの添加による耐剥離性を回避しているに過ぎない。
即ち、上記公報は「耐剥離性」という課題に対して真正
面から取り組んだものではない。また、潤滑剤を添加す
るに従い、耐剥離性は若干向上するが、その効果は不充
分であり、また潤滑剤が塗膜の表層を覆うため、溶接性
が低下してしまう等の問題も生じる。On the other hand, recently, in order to meet various demands of the user side, a precoated steel sheet excellent in not only weldability but also adhesion between a coating film and a steel sheet, and also excellent in peeling resistance of the coating film after press sliding. The offer is eagerly awaited. However, a steel sheet that can satisfy all of such required characteristics has not yet been provided. For example, Japanese Patent Application Laid-Open No. 62-19448 discloses that a conductive paint containing phosphorous iron powder and carbon black is added to a coating film for the purpose of exhibiting a low gloss and black appearance in addition to weldability. 5-1 dry thickness of membrane
A 0 μm weldable black painted steel sheet is disclosed.
According to the above publication, `` In order to effectively exert the weldability by adding phosphorus iron powder, it is necessary to add particles having a particle size larger than the coating film thickness, but if the particle size becomes too large, It is pointed out that the problem that `` the coating film is easily peeled off '' is pointed out, but `` In such a case, it is sufficient to add an appropriate amount of lubricant '', it is described that the addition of a conductive filler by the use of a lubricant It simply avoids peeling resistance.
That is, the above publication does not address the problem of "peeling resistance" head-on. Further, as the lubricant is added, the peeling resistance is slightly improved, but the effect is insufficient, and since the lubricant covers the surface layer of the coating film, problems such as a decrease in weldability also occur. .
【０００５】[0005]
【発明が解決しようとする課題】本発明は上記事情に着
目してなされたものであり、その目的は、潤滑剤などの
添加剤を使用しなくとも耐剥離性に優れ、更には塗膜密
着性も改善された溶接可能塗装金属板を提供することに
ある。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has an object to provide excellent peeling resistance without using additives such as lubricants, It is another object of the present invention to provide a weldable coated metal sheet having improved weldability.
【０００６】[0006]
【課題を解決するための手段】上記課題を達成し得た本
発明に係る耐剥離性及び塗膜密着性に優れた溶接可能塗
装金属板とは、塗膜中に、下式（１），（２）を満足す
る導電性フィラーを含有するところに要旨を有する。 Ｖ・ｄ／ｔ≧３ ・・・（１） ０．５≦ｄ／ｔ≦１．５ ・・・（２） ［式中、Ｖは導電性フィラーの添加量（重量％）， ｄは導電性フィラーの平均粒径（μｍ）， ｔは塗膜の平均厚さ（μｍ）を夫々意味する］ 更に下式（３）を満足するものは、耐剥離性及び塗膜密
着性に一層優れており、本発明の好ましい態様である。 Ｖ≦９０ ・・・（３） ［式中、Ｖは前と同じ意味］また、導電性フィラーとし
てはリン化鉄を使用することが推奨される。Means for Solving the Problems A weldable coated metal sheet according to the present invention, which has achieved the above-mentioned objects and has excellent peel resistance and coating film adhesion, comprises the following formula (1) It has a gist in that it contains a conductive filler satisfying (2). V · d / t ≧ 3 (1) 0.5 ≦ d / t ≦ 1.5 (2) [wherein V is the amount (% by weight) of the conductive filler added, and d is the conductive amount. The average particle size (μm) of the conductive filler and t mean the average thickness (μm) of the coating film, respectively. Further, those satisfying the following formula (3) are more excellent in peel resistance and coating film adhesion. This is a preferred embodiment of the present invention. V ≦ 90 (3) [wherein V has the same meaning as before] It is recommended to use iron phosphide as the conductive filler.
【０００７】[0007]
【発明の実施の形態】本発明者らは、耐剥離性及び塗膜
密着性に優れた溶接可能塗装金属板を提供すべく、特に
導電性フィラーの平均粒径（ｄ）や塗膜の平均厚さ
（ｔ）、更に該フィラーの添加量（Ｖ）に着目して鋭意
検討してきた。これらのパラメーターは、従来において
も溶接性や光沢度等の観点から検討されてきたものであ
る（例えば前記特開昭６２−１９４４８）が、溶接性に
関する従来の検討結果をまとめると以下の通りである。BEST MODE FOR CARRYING OUT THE INVENTION In order to provide a weldable coated metal sheet having excellent peeling resistance and coating film adhesion, the present inventors have studied the average particle size (d) of the conductive filler and the average coating film. The thickness (t) and the amount of the filler added (V) have been studied intensively. These parameters have been conventionally studied from the viewpoints of weldability, glossiness, and the like (for example, the above-mentioned Japanese Patent Application Laid-Open No. 62-19448). is there.
【０００８】溶接性を向上させるには、導電性フィラ
ーの添加量（Ｖ）が多い程良い。導電性フィラーの添
加による溶接性向上を有効に発揮させる為には、塗膜の
平均厚さ（ｔ）よりも平均粒径（ｄ）の大きな粒子を添
加する、即ち、［ｄ／ｔ］＞１とすることが必要であ
る。しかしながら、粒径が大きくなると塗膜が剥離し易
くなるので、潤滑剤を添加することが好ましい。[0008] In order to improve the weldability, the larger the amount (V) of the conductive filler added, the better. In order to effectively improve the weldability by adding the conductive filler, particles having an average particle size (d) larger than the average thickness (t) of the coating film are added, that is, [d / t]> It is necessary to set to 1. However, when the particle size is large, the coating film is apt to be peeled off. Therefore, it is preferable to add a lubricant.
【０００９】この様に従来の溶接可能塗装金属板におい
ては、溶接性に関し、Ｖは多い程，［ｄ／ｔ］の比は大
きい程向上することは知られているが、一方、［ｄ／
ｔ］の比が大き過ぎると、プレス摺動時等における塗膜
の剥離が顕著になるという問題を抱えていた。その為、
耐剥離性にも優れた溶接可能塗装金属板を得るには、別
途潤滑剤を添加する等の方法を余儀なくされており、こ
れでは潤滑剤の添加に伴い、耐剥離性は若干向上するが
溶接性が低下する等の問題があった。As described above, in the conventional weldable coated metal sheet, it is known that the weldability improves as V increases and the ratio of [d / t] increases.
If the ratio of [t] is too large, there is a problem that peeling of the coating film becomes remarkable at the time of press sliding or the like. For that reason,
In order to obtain a weldable coated metal sheet with excellent peel resistance, it is necessary to add a lubricant, etc. There was a problem that the property was reduced.
【００１０】そこで本発明者らは、潤滑剤などの添加剤
を別途使用しなくとも導電性フィラーの粒径や添加量、
塗膜厚さといった要件のみを制御することにより、耐剥
離性に優れ更には塗膜密着性も良好な溶接可能塗装金属
板を提供すべく鋭意検討した結果、上記構成要件を特定
することにより所期の目的が達成されることを見出し、
本発明を完成したのである。以下、本発明を特徴付ける
各要件について説明する。Therefore, the present inventors have proposed a method of using a conductive filler without using an additive such as a lubricant.
By controlling only the requirements such as coating film thickness, we conducted intensive studies to provide a weldable coated metal plate with excellent peel resistance and good coating adhesion. That the goal of the period is achieved,
The present invention has been completed. Hereinafter, each requirement that characterizes the present invention will be described.
【００１１】Ｖ・ｄ／ｔ≧３ ・・・（１） ０．５≦ｄ／ｔ≦１．５・・・（２） まず本発明では、導電性フィラーの添加量（Ｖ），その
平均粒径（ｄ）及び塗膜の平均厚さ（ｔ）が上式
（１），（２）を満足することが必要である。 V · d / t ≧ 3 (1) 0.5 ≦ d / t ≦ 1.5 (2) First, in the present invention, the addition amount (V) of the conductive filler and the average It is necessary that the particle size (d) and the average thickness (t) of the coating film satisfy the above expressions (1) and (2).
【００１２】前述した通り、溶接性を向上させる為には
［ｄ／ｔ］は大きい程好ましいが、大き過ぎると耐剥離
性が低下してしまう。本発明では、この様な耐剥離性に
関する問題を回避すべく式（１）に規定する要件［Ｖ・
ｄ／ｔ］を新しく設定し、これを溶接性、耐剥離性及び
塗膜密着性の指標としたものである。As described above, in order to improve the weldability, it is preferable that [d / t] is large. However, if it is too large, the peel resistance decreases. In the present invention, in order to avoid such a problem regarding peel resistance, the requirement [V ·
d / t] is newly set and used as an index of weldability, peeling resistance and coating film adhesion.
【００１３】即ち、本発明では［Ｖ・ｄ／ｔ］という新
規パラメーターを設けることにより、 (i) ［ｄ／ｔ］の範囲を、溶接性付与に必要であると考
えられていた下限値（＝１）よりも更に小さくすること
ができ（＝０．５）、 (ii)しかも［ｄ／ｔ］が上式（２）を満足するものであ
れば、溶接性のみならず耐剥離性や塗膜密着性も向上さ
せることができた点 に技術的意義を有するものである。この様に耐剥離性及
び塗膜密着性の観点から［ｄ／ｔ］及び［Ｖ・ｄ／ｔ］
を規定したものは従来開示されておらず、本発明者らに
よって初めて見出された知見である。That is, in the present invention, by providing a new parameter of [V · d / t], (i) the range of [d / t] is adjusted to the lower limit (which is considered to be necessary for imparting weldability). = 1) can be further reduced (= 0.5). (Ii) If [d / t] satisfies the above expression (2), not only weldability but also peel resistance and The technical significance is that the coating film adhesion was also improved. [D / t] and [V · d / t] from the viewpoints of peel resistance and coating film adhesion.
Has not been disclosed in the past, and is a finding first discovered by the present inventors.
【００１４】具体的には、本発明では溶接性を向上する
為に［Ｖ・ｄ／ｔ］≧３，［ｄ／ｔ］≧０．５に特定し
ている。好ましくは［Ｖ・ｄ／ｔ］≧１５，［ｄ／ｔ］
≧０．６，より好ましくは［Ｖ・ｄ／ｔ］≧３０，［ｄ
／ｔ］≧０．７である。Specifically, in the present invention, [V · d / t] ≧ 3 and [d / t] ≧ 0.5 are specified in order to improve the weldability. Preferably, [V · d / t] ≧ 15, [d / t]
≧ 0.6, more preferably [V · d / t] ≧ 30, [d
/T]≧0.7.
【００１５】一方、［ｄ／ｔ］の上限が１．５を超える
と耐剥離性および密着性が低下してしまう。好ましくは
１．３以下、より好ましくは１．２以下である。On the other hand, if the upper limit of [d / t] exceeds 1.5, the peeling resistance and the adhesion will decrease. Preferably it is 1.3 or less, more preferably 1.2 or less.
【００１６】尚、［Ｖ・ｄ／ｔ］の上限は特に規定され
ず、大きければ大きい程優れた溶接性が得られるが、大
きくなるにつれ耐剥離性が低下すること等を考慮すれば
１００以下（より好ましくは９０以下）にすることが推
奨される。The upper limit of [V · d / t] is not particularly limited, and the larger the value, the better the weldability. However, considering that the peel resistance decreases as the value increases, it is 100 or less. (More preferably 90 or less) is recommended.
【００１７】また、Ｖの下限値についても溶接性向上に
は多ければ多い程良いと考えられていたので、従来は概
ね３０％以上が使用されていたが、本発明によれば僅か
２％であっても良好な溶接性が得ることができる。一層
優れた溶接性を付与させる為には、Ｖを１０％以上、よ
り好ましくは２０％以上とすることが推奨される。但
し、Ｖが９０％を超えると耐剥離性や密着性が低下して
しまうので下式（３）を規定した。Also, as for the lower limit value of V, it was considered that the larger the value, the better the improvement of the weldability. Therefore, conventionally, approximately 30% or more has been used, but according to the present invention, only 2% is used. Even with this, good weldability can be obtained. In order to provide more excellent weldability, it is recommended that V be 10% or more, more preferably 20% or more. However, if V exceeds 90%, the peeling resistance and adhesion deteriorate, so the following expression (3) is specified.
【００１８】Ｖ≦９０ ・・・（３） 好ましくは８０％以下、より好ましくは７０％以下であ
る。 V ≦ 90 (3) It is preferably at most 80%, more preferably at most 70%.
【００１９】また、本発明に用いられる導電性フィラー
としては、ニッケル、亜鉛、アルミニウム、銀、銅等の
金属粉末，カーボンブラック，リン化鉄，酸化亜鉛，酸
化チタン等が挙げられる。上記要件を満足する限り、こ
れらは単独で使用しても良いし、２種以上を併用しても
構わない。より優れた特性を得る為には、リン化鉄の使
用が好ましい。Examples of the conductive filler used in the present invention include metal powders such as nickel, zinc, aluminum, silver, and copper, carbon black, iron phosphide, zinc oxide, and titanium oxide. These may be used alone or in combination of two or more as long as the above requirements are satisfied. In order to obtain better properties, use of iron phosphide is preferred.
【００２０】更に、本発明における塗膜に使用される塗
料樹脂としては特に限定されず、エポキシ系、ポリエス
テル系、アクリル系、メラミン系、ウレタン系、シリコ
ン系、フッ素系等の溶剤希釈型塗料；アクリル−スチレ
ン系、エポキシ−エステル系、アクリル系、ウレタン
系、ポリ酢酸ビニル系、ポリエチレン系、エチレン酢酸
ビニル系等の水系エマルジョン系型塗料などが挙げられ
る。これらは単独で使用しても良いし、２種以上を併用
しても構わない。Further, the coating resin used for the coating film in the present invention is not particularly limited, and a solvent-dilutable coating material such as an epoxy-based, polyester-based, acrylic-based, melamine-based, urethane-based, silicone-based, or fluorine-based paint; Aqueous emulsion type paints such as acryl-styrene type, epoxy-ester type, acrylic type, urethane type, polyvinyl acetate type, polyethylene type and ethylene vinyl acetate type are exemplified. These may be used alone or in combination of two or more.
【００２１】上記要件を満足する本発明塗装金属板は溶
接性に優れているが、この溶接性能は、例えばスポット
溶接時における初期抵抗値や層間抵抗値によって評価す
ることができる。The coated metal sheet of the present invention that satisfies the above requirements is excellent in weldability, but this welding performance can be evaluated by, for example, the initial resistance value and the interlayer resistance value during spot welding.
【００２２】［スポット溶接時における初期抵抗］ ＪＩＳ Ｃ ９３０４に準じたスポット溶接用電極（ＤＲ
型，呼び径１６，電極先端Ｒ ４０）を用い、下記溶接
条件で溶接してスポット溶接時の初期抵抗値を測定した
ところ、全て３（ｍΩ）以下になる。 電極の加圧力：２００ｋｇｆ 電流 ：１０ｋＡ[Initial resistance during spot welding] An electrode for spot welding (DR) according to JIS C 9304
When the initial resistance value at the time of spot welding was measured by using the mold, nominal diameter 16, and electrode tip R40) under the following welding conditions, all the values were 3 (mΩ) or less. Electrode pressure: 200 kgf Current: 10 kA
【００２３】［層間抵抗］ ＪＩＳ Ｃ ２５５０に基づき、下記測定条件で塗膜の層
間抵抗を測定したところ、１００（Ω・ｃｍ2 ）以下に
なる。 電極先端：１１．２（ｍｍ） 圧力 ：２（Ｎ／ｍｍ2 ） 電圧 ：０．５（Ｖ）[Interlayer Resistance] The interlayer resistance of the coating film measured under the following measurement conditions based on JIS C 2550 is 100 (Ω · cm 2 ) or less. Electrode tip: 11.2 (mm) Pressure: 2 (N / mm 2 ) Voltage: 0.5 (V)
【００２４】この様に本発明の塗装金属板は、単に溶接
性に優れるというものではなく、スポット溶接時におけ
る初期抵抗や層間抵抗といった個別具体的な評価基準に
よっても優れた性能を発揮することが認められるので非
常に有用である。スポット溶接時の初期抵抗および層間
抵抗で示される抵抗値は溶接性と密接な関係があり、抵
抗値が低いと溶接が容易となり、また、溶接用電極の消
耗を減少できるという効果を奏するものである。As described above, the coated metal sheet of the present invention is not merely excellent in weldability, but can exhibit excellent performance according to individual specific evaluation criteria such as initial resistance and interlayer resistance during spot welding. It is very useful because it is recognized. The resistance values indicated by the initial resistance and the interlayer resistance during spot welding are closely related to the weldability. When the resistance value is low, welding is facilitated, and the effect of reducing the consumption of welding electrodes is exhibited. is there.
【００２５】以下実施例に基づいて本発明を詳述する。
ただし、下記実施例は本発明を制限するものではなく、
前・後記の趣旨を逸脱しない範囲で変更実施することは
全て本発明の技術範囲に包含される。Hereinafter, the present invention will be described in detail with reference to examples.
However, the following examples do not limit the present invention,
All modifications and alterations without departing from the spirit of the preceding and following descriptions are included in the technical scope of the present invention.
【００２６】[0026]
【実施例】塗料樹脂としてポリエステル樹脂を用いた塗
膜中に、種類、平均粒径及び塗膜中の添加量が種々異な
る導電性フィラー（リン化鉄を使用）を添加したもの
を、板厚０．８ｍｍのクロメート処理電気亜鉛めっき鋼
板上にバーコートにて塗布した後、２３０℃×６０秒間
焼付け、表１，２に示す各供試材を得た。EXAMPLE A film obtained by adding a conductive filler (using iron phosphide) having various types, average particle diameters, and addition amounts in a coating film to a coating film using a polyester resin as a coating resin was used. After coating with a bar coat on a 0.8 mm chromate-treated electrogalvanized steel sheet, it was baked at 230 ° C. for 60 seconds to obtain each test material shown in Tables 1 and 2.
【００２７】この様にして得られた各供試材の溶接性、
塗膜密着性および耐剥離性について下記方法により評価
した。The weldability of each test material thus obtained,
The coating film adhesion and peel resistance were evaluated by the following methods.
【００２８】［溶接性］ ＪＩＳ Ｃ ９３０４に準じたスポット溶接用電極（Ｄ
Ｒ型，呼び径１６，電極先端Ｒ ４０）を用い、ＪＩＳ
Ｚ ３１３６に準じたスポット溶接継手の引張せん断試
験を下記溶接条件にて実施し、最大荷重を測定した。 [Weldability] An electrode for spot welding (D) according to JIS C 9304
R type, nominal diameter 16, electrode tip R 40)
A tensile shear test of a spot welded joint according to Z3136 was performed under the following welding conditions, and the maximum load was measured.
【００２９】［塗膜密着性］ＪＩＳ Ｋ ５４００に準
じたエリクセン試験機を用いて塗装板を６ｍｍ押出し、
押出し後のエリクセン部をテーピングし、塗膜剥離の程
度を下記基準にて評価した。 [Coating film adhesion] A coated plate was extruded by 6 mm using an Erichsen tester according to JIS K 5400.
The Erichsen part after extrusion was taped, and the degree of peeling of the coating film was evaluated according to the following criteria.
【００３０】［耐剥離性］ ８０トンのクランクプレス試験を用いて単発のプレス試
験を実施し、成形後の擦動面の塗膜状態を目視で評価し
た。 [Peeling Resistance] A single-shot press test was performed using a crank press test of 80 tons, and the state of the coating film on the rubbing surface after molding was visually evaluated.
【００３１】尚、表２に示す各供試材については、更に
スポット溶接時の初期抵抗および層間抵抗を前記方法に
て測定した。得られた結果を表１及び２に併記する。For each of the test materials shown in Table 2, the initial resistance and the interlayer resistance at the time of spot welding were measured by the above method. The results obtained are shown in Tables 1 and 2.
【００３２】[0032]
【表１】 [Table 1]
【００３３】[0033]
【表２】 [Table 2]
【００３４】表より以下の様に考察される。まず、Ｎo.
１〜１８及びＮo.２８〜３３は本発明の要件を全て満足
する実施例であるが、溶接性、塗膜密着性、耐剥離性の
いずれも良好であることが分かる。このうちＮo.２８〜
３３については、スポット溶接時の初期抵抗値および層
間抵抗値も低く、本発明によって優れた溶接性能が得ら
れることを更に確認することができる。The following is considered from the table. First, No.
Nos. 1 to 18 and Nos. 28 to 33 are examples satisfying all the requirements of the present invention, but it can be seen that all of the weldability, coating film adhesion and peeling resistance are good. No.28 ~
As for No. 33, the initial resistance value and the interlayer resistance value during spot welding are also low, and it can be further confirmed that excellent welding performance can be obtained by the present invention.
【００３５】これに対して本発明の要件を満足しないＮ
o.１９〜２７及びＮo.３４は、夫々以下の不具合を有し
ている。On the other hand, N which does not satisfy the requirements of the present invention
Nos. 19 to 27 and No. 34 have the following disadvantages, respectively.
【００３６】Ｎo.１９〜２２，３４は［ｄ／ｔ］が小さ
い比較例であり、溶接性に劣る。一方、Ｎo.２３，２４
は［ｄ／ｔ］が大きい比較例であり、塗膜密着や耐剥離
性が低下する。Ｎo.２５はＶが多くなっているので塗膜
密着や耐剥離性に悪影響が見られる。Nos. 19 to 22 and 34 are comparative examples in which [d / t] is small, and are inferior in weldability. On the other hand, No. 23, 24
Is a comparative example having a large [d / t], and the adhesion of the coating film and the peeling resistance are reduced. No. 25 has a large amount of V, so that the coating film adhesion and peel resistance are adversely affected.
【００３７】Ｎo.２６は［ｄ／ｔ］が小さく、且つＶが
多い比較例であり、溶接性、塗膜密着性、耐剥離性のい
ずれも劣っている。Ｎo.２７は、［ｄ／ｔ］及び［Ｖ・
ｄ／ｔ］がいずれも小さい比較例であり、溶接性が悪
い。No. 26 is a comparative example having a small [d / t] and a large V, and is inferior in all of weldability, coating film adhesion and peeling resistance. No. 27 is [d / t] and [V ·
d / t] are all comparative examples with small weldability.
【００３８】[0038]
【発明の効果】本発明の塗装金属板は以上の様に構成さ
れているので、耐剥離性に優れ、更には塗膜密着性も改
善された溶接可能塗装金属板を提供することができた。Since the coated metal sheet of the present invention is constituted as described above, it is possible to provide a weldable coated metal sheet having excellent peel resistance and improved coating film adhesion. .
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平６−210792（ＪＰ，Ａ) 特開 昭59−146844（ＪＰ，Ａ) 特開 平９−276790（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B05D 7/14 B05D 5/12 B05D 7/24 303 B32B 15/08 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-6-210792 (JP, A) JP-A-59-146844 (JP, A) JP-A 9-276790 (JP, A) (58) Field (Int.Cl. 7 , DB name) B05D 7/14 B05D 5/12 B05D 7/24 303 B32B 15/08
Claims (3)
る導電性フィラーを含有することを特徴とする耐剥離性
及び塗膜密着性に優れた溶接可能塗装金属板。 Ｖ・ｄ／ｔ≧３ ・・・（１） ０．５≦ｄ／ｔ≦１．５ ・・・（２） ［式中、Ｖは導電性フィラーの添加量（重量％）， ｄは導電性フィラーの平均粒径（μｍ）， ｔは塗膜の平均厚さ（μｍ）を夫々意味する］1. A weldable coated metal sheet excellent in peeling resistance and coating film adhesion, characterized in that the coating film contains a conductive filler satisfying the following formulas (1) and (2) . V · d / t ≧ 3 (1) 0.5 ≦ d / t ≦ 1.5 (2) [wherein V is the amount (% by weight) of the conductive filler added, and d is the conductive amount. Average particle size (μm) of the conductive filler, and t means the average thickness (μm) of the coating film, respectively.
記載の溶接可能塗装金属板。 Ｖ≦９０ ・・・（３） ［式中、Ｖは前と同じ意味］2. The weldable coated metal sheet according to claim 1, further satisfying the following expression ( 3 ). V ≦ 90 ( 3 ) [where V is the same as before]
求項１または２に記載の溶接可能塗装金属板。3. The weldable coated metal sheet according to claim 1, wherein the conductive filler is iron phosphide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10022315A JP3015850B2 (en) | 1998-02-03 | 1998-02-03 | Weldable painted metal sheet with excellent peel resistance and coating adhesion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10022315A JP3015850B2 (en) | 1998-02-03 | 1998-02-03 | Weldable painted metal sheet with excellent peel resistance and coating adhesion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11216420A JPH11216420A (en) | 1999-08-10 |
| JP3015850B2 true JP3015850B2 (en) | 2000-03-06 |
Family
ID=12079309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10022315A Expired - Fee Related JP3015850B2 (en) | 1998-02-03 | 1998-02-03 | Weldable painted metal sheet with excellent peel resistance and coating adhesion |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3015850B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3764465B2 (en) * | 2004-07-09 | 2006-04-05 | 株式会社神戸製鋼所 | Resin-coated metal plate and method for producing the same |
| JP5276794B2 (en) * | 2007-03-23 | 2013-08-28 | 株式会社神戸製鋼所 | Conductive resin coated metal plate |
| CN101945566A (en) * | 2007-03-23 | 2011-01-12 | 株式会社神户制钢所 | Conductive resin coating metal panel |
| KR101195897B1 (en) | 2011-05-19 | 2012-10-30 | 주식회사 포스코 | Gloss-controllable uv curing paint composition and steel sheet coated by the same |
-
1998
- 1998-02-03 JP JP10022315A patent/JP3015850B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11216420A (en) | 1999-08-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6070917B1 (en) | Painted steel plate | |
| JPH0692567B2 (en) | Weldable rust preventive lubricity coating forming composition and method for producing surface-treated steel sheet using the same | |
| JP3015850B2 (en) | Weldable painted metal sheet with excellent peel resistance and coating adhesion | |
| JP2690629B2 (en) | Organic composite coated steel sheet with excellent corrosion resistance and spot weldability | |
| JP2617837B2 (en) | Method for producing lubricated plated steel sheet with excellent slidability and press workability | |
| JP2617838B2 (en) | Manufacturing method of high performance lubricated steel sheet | |
| JPS5918765A (en) | Coating material composition for coated steel plate | |
| JPH0243040A (en) | Lubricating resin treated steel plate excellent in corrosion resistance | |
| JP2002172363A (en) | Organic coating-bearing surface treated steel plate | |
| JP2617834B2 (en) | Manufacturing method of lubricated plated steel sheet with excellent surface properties | |
| JPH01301332A (en) | Lubricating resin treated steel plate excellent in moldability | |
| JPH0659455B2 (en) | Lubricating thin film resin steel plate with excellent corrosion resistance and weldability | |
| JPH03270932A (en) | Lubricating resin-treated steel plate excellent in electric conductivity | |
| JP2947100B2 (en) | High lubricity organic resin coated steel sheet with excellent weldability | |
| JP2617835B2 (en) | Manufacturing method of lubricated plated steel sheet with excellent paint adhesion | |
| JPS63270131A (en) | High-corrosion resistance organic composite plated steel sheet | |
| JPH0120057B2 (en) | ||
| JPH0734260A (en) | Surface treated steel sheet excellent in workability and corrosion resistance | |
| JP3959021B2 (en) | Coated metal plate with excellent conductivity, corrosion resistance and formability | |
| JPH0874065A (en) | Organic composite clad steel sheet excellent in pitting resistance and corrosion resistance after working | |
| JPH11140614A (en) | Weldable coated steel sheet excellent in corrosion resistance | |
| JPH0874064A (en) | Organic composite clad steel sheet excellent in corrosion resistance and its production | |
| JPS5853437A (en) | Welding painted steel plate and its manufacture | |
| JPH1128785A (en) | Weldable coated steel sheet of excellent adhesion to foamed urethane resin | |
| JPS59104464A (en) | Pre-coated steel plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19990831 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071224 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081224 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091224 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091224 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101224 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101224 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111224 Year of fee payment: 12 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121224 Year of fee payment: 13 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131224 Year of fee payment: 14 |
|
| LAPS | Cancellation because of no payment of annual fees |