JPH06286054A - Lubricating steel panel excellent in processability and corrosion resistance - Google Patents
Lubricating steel panel excellent in processability and corrosion resistanceInfo
- Publication number
- JPH06286054A JPH06286054A JP9831393A JP9831393A JPH06286054A JP H06286054 A JPH06286054 A JP H06286054A JP 9831393 A JP9831393 A JP 9831393A JP 9831393 A JP9831393 A JP 9831393A JP H06286054 A JPH06286054 A JP H06286054A
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- Japan
- Prior art keywords
- film
- steel sheet
- ethylene
- corrosion resistance
- weight
- 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.)
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Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、成形性，プレス加工性
および耐食性に優れた潤滑鋼板に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lubricating steel sheet having excellent formability, press workability and corrosion resistance.
【０００２】[0002]
【従来の技術】従来、鋼板を加工する際には、加工性の
向上，表面外観の維持あるいは寸法精度を確保する目的
で加工油，プレス油などが使用されている。しかし、こ
れらの油は加工時の熱によってミスト状になり周辺を汚
染していた。また、これらの油は加工後にトリクロロエ
タンやフロンなどで脱脂洗浄する必要があるが、これら
の溶剤はオゾン層破壊物質であるため世界的に全廃され
る方向にある。この脱脂・洗浄工程はアルカリ性の溶剤
等により代替することも可能であるが、排水処理などの
設備が大がかりなものとなる。2. Description of the Related Art Conventionally, when working a steel sheet, working oil, press oil, etc. have been used for the purpose of improving workability, maintaining the surface appearance or ensuring dimensional accuracy. However, these oils became mist-like due to heat during processing and polluted the surrounding area. In addition, these oils need to be degreased and washed with trichloroethane, freon, etc. after processing, but since these solvents are ozone layer depleting substances, they are being totally abolished worldwide. This degreasing / washing process can be replaced by an alkaline solvent, but the equipment for wastewater treatment becomes large-scale.
【０００３】この問題を解決するために、無塗油で加工
が可能で脱脂洗浄工程の不要な潤滑鋼板の開発が行われ
ている。たとえば、鋼板の表面にパラフィン系のワック
スまたはポリオレフィン系の樹脂を主成分とする皮膜を
有する潤滑鋼板（特開昭６１−２６６９５号，特開昭６
３−１１２６９３号，特開平２−３１０３８４号，特開
平４−６１９６６号）などが提案されている。しかしな
がら、パラフィン系ワックスは常温付近では高度の潤滑
性を有するものの、加工時の昇温により溶解あるいは昇
華して潤滑性能が半減する可能性がある。特開平４−６
１９６６号では、エチレン−不飽和カルボン酸共重合体
をアクリル酸で変性しているため、熱特性は良好である
が、変性フッ素粒子が単なるブレンドであり、エチレン
-不飽和カルボン酸共重合体とフッ素のグラフト反応が
期待できない。そのために、粒子の比重差，非相溶性に
より、皮膜が不均一になり、潤滑性がばらつくおそれが
ある。また、ポリエステル系の樹脂を主成分とする皮膜
を有する潤滑鋼板（特願平４−３００６３１号）などが
提案されている。ポリエステル系は、熱特性に若干劣る
ために厳しい加工には適さず、用途制限を受ける。この
ほか、熱硬化型の樹脂皮膜を鋼板表面に形成させた潤滑
鋼板（特開平３−２３１８４２号）などが提案されてい
る。アクリルエポキシ，メラミンアルキッドなどの熱硬
化型樹脂を用いる場合、成形加工時のストレスによって
皮膜にクラックが生じ加工後の耐食性を劣化させるほ
か、熱変色を生じるおそれがある。In order to solve this problem, a lubricating steel sheet that can be processed without oil and does not require a degreasing and washing step has been developed. For example, a lubricating steel sheet having a film containing a paraffin wax or a polyolefin resin as a main component on the surface of the steel sheet (JP-A-61-26695, JP-A-6-26695).
3-112693, JP-A-2-310384, JP-A-4-61966) and the like are proposed. However, although the paraffin wax has a high degree of lubricity at around room temperature, it may be dissolved or sublimated by the temperature rise during processing and the lubricating performance may be halved. Japanese Patent Laid-Open No. 4-6
In 1966, since the ethylene-unsaturated carboxylic acid copolymer is modified with acrylic acid, the thermal characteristics are good, but the modified fluorine particles are merely a blend,
-The unsaturated carboxylic acid copolymer and fluorine graft reaction cannot be expected. Therefore, the coating may become non-uniform and the lubricity may vary due to the difference in specific gravity of particles and incompatibility. In addition, a lubricating steel sheet (Japanese Patent Application No. 4-300361) having a coating containing a polyester resin as a main component has been proposed. Since the polyester type is slightly inferior in thermal characteristics, it is not suitable for severe processing, and its use is restricted. In addition, a lubricating steel sheet (Japanese Patent Laid-Open No. 3-231842) in which a thermosetting resin film is formed on the surface of the steel sheet has been proposed. When a thermosetting resin such as acrylic epoxy or melamine alkyd is used, the film may crack due to stress during the molding process, which may deteriorate the corrosion resistance after processing and may cause thermal discoloration.
【０００４】[0004]
【発明が解決しようとする課題】本発明は上記の欠点を
解消し、すなわち加工性に優れ、加工後の耐食性を有す
る潤滑鋼板を提供することにある。SUMMARY OF THE INVENTION It is an object of the present invention to provide a lubricating steel sheet which solves the above-mentioned drawbacks, that is, which is excellent in workability and has corrosion resistance after working.
【０００５】[0005]
【課題を解決するための手段】本発明は、加工性，疵付
き性，耐食性を付与する目的で、乾燥皮膜中の配合量が
５から２０重量パーセントのフッ化エチレン樹脂の粒子
を種にしてエチレン−不飽和カルボン酸共重合体を保護
コロイドとして吸着させ、そこにアクリルなどを吸収さ
せた後、重合し変性した水溶液に、２０から６０重量パ
ーセントの二酸化ケイ素，アルミナの１種以上を添加、
さらにそれらの固形分濃度に対して１から４重量パーセ
ントのクロム酸ナトリウム，ポリリン酸アルミニウム，
メタホウ酸バリウムなどの中性あるいはアルカリ性を示
す防錆顔料を追加した水溶性エチレン−不飽和カルボン
酸共重合体のエマルジョンをめっき鋼板の表面に塗布，
乾燥することにより作製される潤滑鋼板である。DISCLOSURE OF THE INVENTION The present invention uses, as a seed, particles of a fluorinated ethylene resin having a blending amount of 5 to 20% by weight in a dry film for the purpose of imparting processability, flaw resistance and corrosion resistance. An ethylene-unsaturated carboxylic acid copolymer is adsorbed as a protective colloid, and after acryl is absorbed therein, 20 to 60% by weight of one or more of silicon dioxide and alumina is added to the polymerized and modified aqueous solution,
In addition, 1 to 4 weight percent of sodium chromate, aluminum polyphosphate, based on their solids concentration,
Applying a water-soluble ethylene-unsaturated carboxylic acid copolymer emulsion to which a neutral or alkaline anticorrosive pigment such as barium metaborate has been added,
It is a lubricated steel sheet produced by drying.
【０００６】以下、本発明を詳細に説明する。The present invention will be described in detail below.
【０００７】本発明において用いられるエチレン−不飽
和カルボン酸共重合体とは、アクリル酸あるいはその誘
導体とエチレンとを共重合させたものである。The ethylene-unsaturated carboxylic acid copolymer used in the present invention is a copolymer of acrylic acid or its derivative and ethylene.
【０００８】めっき鋼板との良好な密着性および皮膜の
強度を確保するためには、共重合させるエチレンと不飽
和カルボン酸との重量比を４：６〜２：８とすることが
好ましい。エチレンの重量比が多くなると樹脂の性状が
低密度ポリエチレンに似た性状を示し、めっき鋼板との
密着性が低下する。一方、不飽和カルボン酸が多くなる
とめっき鋼板との密着性は改善されるが、ゴム状の柔軟
透明な性状を示し、皮膜の硬度が著しく低下する。In order to secure good adhesion to the plated steel sheet and strength of the film, it is preferable that the weight ratio of ethylene to be copolymerized and unsaturated carboxylic acid is 4: 6 to 2: 8. When the weight ratio of ethylene increases, the properties of the resin show properties similar to those of low density polyethylene, and the adhesion with the plated steel sheet decreases. On the other hand, when the amount of unsaturated carboxylic acid is increased, the adhesion with the plated steel sheet is improved, but the rubber-like flexible and transparent property is exhibited, and the hardness of the film is significantly reduced.
【０００９】一般に、エチレン樹脂は加工時の昇温によ
り溶解あるいは昇華して潤滑性能が半減するが、アクリ
ル酸を含むために低密度ポリエチレンより優れ、２５０
℃まで十分な低摩擦係数を示し、連続プレス成形に耐え
得る。Generally, the ethylene resin is dissolved or sublimated by the temperature rise during processing and its lubricating performance is halved. However, since it contains acrylic acid, it is superior to low density polyethylene, and
It has a sufficiently low coefficient of friction up to ℃ and can withstand continuous press molding.
【００１０】エチレン−不飽和カルボン酸共重合体は、
市販のものを使用しても差し支えない。例えば、住友化
学の「ボンダイン」あるいはＣｄＦシミー社（仏）の
「ＬＯＴＡＤＥＲ」などがある。The ethylene-unsaturated carboxylic acid copolymer is
A commercially available product may be used. Examples include Sumitomo Chemical's “Bondaine” or CdF Shimmy (France) 's “LOTADER”.
【００１１】潤滑性を付与する目的で添加されるフッ化
エチレン樹脂は、四フッ化エチレン樹脂（ＰＴＦＥ），
四フッ化エチレン−六フッ化プロピレン共重合樹脂（Ｆ
ＥＰ）のいずれも使用できる。特に耐熱性を要する場合
には四フッ化エチレン樹脂を使用する。その配合量は、
潤滑皮膜中に、５から２０重量パーセント含まれるよう
調整する。すなわち、エチレン−不飽和カルボン酸共重
合体およびフッ化エチレン樹脂および二酸化ケイ素，ア
ルミナの１種以上およびクロム酸ナトリウム，ポリリン
酸アルミニウム，メタホウ酸バリウムのなどの中性ある
いはアルカリ性を示す防錆顔料の１種または２種以上を
混合して得られる処理液のフッ化エチレン樹脂の固形分
濃度が、５から２０重量パーセントとなるように混合を
行う。皮膜中のフッ化エチレンの濃度が５重量パーセン
ト未満では十分な潤滑の効果が得られないし、２０重量
パーセントを越えては、潤滑の効果が飽和することに加
え、加工後の再塗装性を低下させる原因となる。The fluoroethylene resin added for the purpose of imparting lubricity is tetrafluoroethylene resin (PTFE),
Tetrafluoroethylene-hexafluoropropylene copolymer resin (F
Any of EP) can be used. Especially when heat resistance is required, tetrafluoroethylene resin is used. The blending amount is
It is adjusted so that the lubricating film contains 5 to 20 weight percent. That is, ethylene-unsaturated carboxylic acid copolymers and fluorinated ethylene resins and one or more of silicon dioxide and alumina, and neutral or alkaline rust preventive pigments such as sodium chromate, aluminum polyphosphate and barium metaborate. The treatment liquid obtained by mixing one kind or two or more kinds is mixed so that the solid content concentration of the fluorinated ethylene resin is 5 to 20% by weight. If the concentration of fluorinated ethylene in the coating is less than 5% by weight, sufficient lubrication effect cannot be obtained, and if it exceeds 20% by weight, the lubrication effect is saturated and repaintability after processing is deteriorated. Cause
【００１２】フッ化エチレン樹脂の粒径は、０.０５か
ら０.５μｍのものが好ましい。粒径が０.５μｍを越え
ると、処理液の安定性が低下するとともに、鋼板に塗布
して得られる塗膜の平滑性が失われる原因となる。一
方、粒径が０.０５μｍ未満の場合、潤滑性能に与える
悪影響は特にないが、フッ化エチレン樹脂の製造が困難
であるためコスト面での問題が残る。The particle size of the fluorinated ethylene resin is preferably 0.05 to 0.5 μm. If the particle size exceeds 0.5 μm, the stability of the treatment liquid is reduced and the smoothness of the coating film obtained by coating the steel sheet is lost. On the other hand, when the particle size is less than 0.05 μm, there is no particular adverse effect on the lubrication performance, but the production of the fluorinated ethylene resin is difficult, and the cost problem remains.
【００１３】また、本発明の場合、フッ化エチレン樹脂
の粒子を種にしてエチレン-不飽和カルボン酸共重合体
を保護コロイドとして吸着させているために、部分的に
フッ素とエチレン-不飽和カルボン酸共重合体とのグラ
フト反応が起こり、皮膜がほぼ均質となり、潤滑性がば
らつかない。Further, in the case of the present invention, since the ethylene-unsaturated carboxylic acid copolymer is adsorbed as a protective colloid using the particles of the fluorinated ethylene resin as a seed, fluorine and ethylene-unsaturated carboxylic acid are partially adsorbed. Grafting reaction with the acid copolymer occurs, the film becomes almost homogeneous, and the lubricity does not vary.
【００１４】一方、疵付き性向上の目的で添加される二
酸化ケイ素あるいは／およびアルミナの配合量は、潤滑
皮膜中に２０から６０重量パーセント含まれるよう調整
する。すなわち、エチレン−不飽和カルボン酸共重合体
およびフッ化エチレン樹脂および二酸化ケイ素，アルミ
ナの１種以上およびクロム酸ナトリウム，ポリリン酸ア
ルミニウム，メタホウ酸バリウムなどの中性あるいはア
ルカリ性を示す防錆顔料の１種または２種以上を混合し
て得られる処理液の二酸化ケイ素あるいは／およびアル
ミナの固形分濃度が、２０から６０重量パーセントとな
るように混合を行う。二酸化ケイ素あるいは／およびア
ルミナの濃度が２０重量パーセント未満では、疵付き性
に関して十分な効果が得られず、耐指紋性も劣る。ま
た、６０重量パーセントを越えては、疵付き性の効果が
飽和し経済的でなく、塗膜が硬化しすぎて加工の際に割
れが生ずる。On the other hand, the compounding amount of silicon dioxide and / or alumina added for the purpose of improving the scratch resistance is adjusted so that the lubricating film contains 20 to 60% by weight. That is, an ethylene-unsaturated carboxylic acid copolymer, a fluorinated ethylene resin, one or more of silicon dioxide and alumina, and a neutral or alkaline anticorrosive pigment such as sodium chromate, aluminum polyphosphate and barium metaborate. The treatment liquid obtained by mixing two or more species is mixed such that the solid concentration of silicon dioxide and / or alumina is 20 to 60% by weight. If the concentration of silicon dioxide and / or alumina is less than 20% by weight, no sufficient effect can be obtained with regard to the scratch resistance, and the fingerprint resistance is also poor. On the other hand, if it exceeds 60% by weight, the effect of the flawing property is saturated and it is not economical, and the coating film is excessively hardened and cracks occur during processing.
【００１５】二酸化ケイ素あるいはアルミナは粉末の形
で混入することも可能であるが、市販のコロイダルシリ
カあるいはアルミナゾルなどの分散液を用いることによ
り、取扱いを簡便にすることができる。Although silicon dioxide or alumina can be mixed in the form of powder, the handling can be simplified by using a commercially available dispersion liquid such as colloidal silica or alumina sol.
【００１６】このほか、耐食性向上の目的でクロム酸ナ
トリウム，ポリリン酸アルミニウム，メタホウ酸バリウ
ムなどの中性あるいはアルカリ性を示す防錆顔料をフッ
化エチレンの粉末を種にしてエチレン−不飽和カルボン
酸共重合体を保護コロイドとして吸着させ、そこにアク
リルなどを吸収させた後、重合し変性した水溶液に、二
酸化ケイ素，アルミナの１種以上を添加した水溶液の固
形分濃度に対して、１から４重量パーセント処理液中に
添加する。１重量パーセント未満では、耐食性向上の効
果がなく、４重量パーセントを越えると液中のカチオン
あるいはアニオンにより、エマルジョンの分散粒子の沈
降あるいはゲル化を誘発する恐れがある。In addition, for the purpose of improving the corrosion resistance, a neutral or alkaline anticorrosive pigment such as sodium chromate, aluminum polyphosphate, barium metaborate is used as a seed for ethylene-unsaturated carboxylic acid with fluorinated ethylene powder as a seed. The polymer is adsorbed as a protective colloid, and after acryl and the like are absorbed therein, 1 to 4% by weight based on the solid content concentration of the aqueous solution obtained by adding at least one of silicon dioxide and alumina to the polymerized and modified aqueous solution. Add to the percent processing solution. If it is less than 1% by weight, the effect of improving corrosion resistance is not obtained, and if it exceeds 4% by weight, cations or anions in the liquid may induce precipitation or gelation of dispersed particles of the emulsion.
【００１７】上記のフッ化エチレン樹脂の粉末を種にし
てエチレン−不飽和カルボン酸共重合体を保護コロイド
として吸着させ、そこにアクリルなどを吸収させた後、
重合し変性した水溶液に、二酸化ケイ素，アルミナの１
種以上を添加し、さらにクロム酸ナトリウム，ポリリン
酸アルミニウム，メタホウ酸バリウムなどの中性あるい
はアルカリ性を示す防錆顔料を追加した処理溶液を、め
っき鋼板の片面あるいは両面に塗布する。塗布する方法
は、浸漬，ロールコート，カーテンフローコート，スプ
レーコートなど、特に問われるものではない。しかし、
両面塗布を行う場合、本処理液が水系である点を活かし
て、連続めっきラインにおいて、浸漬・絞りによる塗布
を行う方法が容易で経済的である。Ethylene-unsaturated carboxylic acid copolymer is adsorbed as a protective colloid using the above-mentioned fluorinated ethylene resin powder as a seed, and after acryl is absorbed therein,
Polymerized and modified aqueous solution contains 1 parts of silicon dioxide and alumina.
One or more surfaces of the plated steel sheet are coated with a treatment solution containing one or more seeds, and a neutral or alkaline anticorrosive pigment such as sodium chromate, aluminum polyphosphate, barium metaborate. The method of application is not particularly limited to dipping, roll coating, curtain flow coating, spray coating and the like. But,
When performing double-sided coating, taking advantage of the fact that the treatment liquid is water-based, a method of performing coating by dipping / squeezing in a continuous plating line is easy and economical.
【００１８】潤滑皮膜は、乾燥膜厚で０.３から４ｇ／
ｍ2となるように塗布する。潤滑皮膜の厚みが０.３ｇ／
ｍ2未満の場合、十分な潤滑効果が得られないばかりで
なく、耐食性あるいは加工部の表面外観が著しく劣る。
４ｇ／ｍ2を越えては、潤滑性能が飽和し、経済的でな
くなる。特に、０.３〜１ｇ／ｍ2の場合、通電性および
溶接性に優れるため、溶接の必要な用途に使用すること
ができる。潤滑皮膜厚の管理は、塗布する方法に準じて
行う。処理液の粘度によって膜厚を管理する場合、ポリ
エーテル系の増粘剤を処理液に０.５から２％程度加え
て粘度調整を行うことができる。The lubricating film has a dry film thickness of 0.3 to 4 g /
Apply so that it becomes m 2 . Lubrication film thickness is 0.3g /
When it is less than m 2, not only a sufficient lubrication effect cannot be obtained, but also the corrosion resistance or the surface appearance of the processed portion is remarkably deteriorated.
If it exceeds 4 g / m 2 , the lubricating performance will be saturated and it will not be economical. Particularly, in the case of 0.3 to 1 g / m 2 , it is excellent in electric conductivity and weldability, so that it can be used for applications requiring welding. The thickness of the lubricating film is controlled according to the coating method. When the film thickness is controlled by the viscosity of the treatment liquid, the viscosity can be adjusted by adding a polyether thickener to the treatment liquid in an amount of 0.5 to 2%.
【００１９】処理液を塗布しためっき鋼板は、８０から
１４０℃の温度で加熱，乾燥する。鋼板を加熱すること
により、水分が蒸発し、フッ化エチレン樹脂の粒子を種
にしてエチレン−不飽和カルボン酸共重合体が鋼板に融
着し、均一な皮膜を形成する。また、それに伴ってフッ
化エチレン樹脂も均一に分散し、潤滑性がばらつかな
い。The plated steel sheet coated with the treatment liquid is heated and dried at a temperature of 80 to 140 ° C. By heating the steel sheet, water evaporates and the ethylene-unsaturated carboxylic acid copolymer is fused to the steel sheet using the particles of the fluorinated ethylene resin as seeds to form a uniform film. Further, along with this, the fluorinated ethylene resin is uniformly dispersed, and the lubricity does not vary.
【００２０】潤滑鋼板に使用されるめっき鋼板の仕様は
特に限定されるものではない。溶融めっき，電気めっき
何れの手法を用いても、十分な潤滑効果を呈することが
できる。また、ぶりき，亜鉛めっき，合金亜鉛めっき，
複合亜鉛めっきなど、鋼板上に施すめっきの種類も用途
に応じて選択してよい。めっき表面にクロム酸塩処理，
リン酸塩処理などの化成処理が施されていても差し支え
ない。また、陽極あるいは陰極処理によって黒色化させ
た亜鉛めっき鋼板に施す場合、黒色化した亜鉛めっきの
表面は、スポンジ状になっているためめっき中に浸透
し、めっき密着性および疵付き性を高める効果もある。
さらに、耐食性の要求に応じて、めっき量を増減するこ
ともできる。いずれにせよ、使用目的，コストにみあっ
ためっき鋼板を使用するとよい。なお、本発明の処理液
の塗布にさきだちめっきの表面に、クロメート皮膜を形
成させることにより、耐食性をさらに向上させることが
可能であり、また、潤滑皮膜とめっき鋼板との密着性も
併せて向上させることができる。The specifications of the plated steel sheet used for the lubricating steel sheet are not particularly limited. Sufficient lubrication effect can be exhibited by using either hot dipping or electroplating. Also, tinplate, zinc plating, alloy zinc plating,
The type of plating applied on the steel sheet, such as composite zinc plating, may also be selected according to the application. Chromate treatment on the plating surface,
It does not matter if chemical conversion treatment such as phosphate treatment is applied. Also, when applied to zinc-plated steel sheet that has been blackened by anodizing or cathodic treatment, the surface of the blackened galvanizing penetrates into the plating because it is sponge-like, and the effect of improving plating adhesion and scratch resistance There is also.
Further, the plating amount can be increased or decreased depending on the demand for corrosion resistance. In any case, it is advisable to use a plated steel sheet that matches the purpose of use and cost. It should be noted that, by forming a chromate film on the surface of the fresh plating prior to application of the treatment liquid of the present invention, it is possible to further improve the corrosion resistance, and also improve the adhesion between the lubricating film and the plated steel sheet. Can be made.
【００２１】かくして、成形性，プレス加工性に優れた
潤滑鋼板を得ることができる。Thus, it is possible to obtain a lubricating steel sheet having excellent formability and press workability.
【００２２】[0022]
【実施例】めっき鋼板上に潤滑皮膜を塗布した。表１に
は、試料作成の条件を示し、表２にはその評価結果を示
した。なお、評価は以下の項目について行った 加工性・成形性 １）動摩擦係数：バウデン−レーペンス型測定器を使用
し、８ｍｍ鋼球，荷重１.３ｋｇで測定。 ２）限界絞り比：ブランク径を変化させてポンチ径４０
ｍｍのカップ加工を行い、加工限界を測定。 ３）塗膜密着性：絞り比２.０のカップ加工を行い、カ
ップ側面をセロハンテープで剥離しその剥離程度で評
価。 ４）加工後の外観：絞り比２.０のカップ加工を行い、
カップ外観を目視で評価。 ５）耐食性：塩水噴霧試験により評価。 ６）再塗装性：（株）シャチハタ製「不滅インキ」によ
り押印、インキのなじみを評価。 表２に示すように本発明によるものは、動摩擦係数，限
界絞り比，塗膜の密着性，加工後の外観，耐食性，再塗
装性の全ての項目において良好な性状を示した。一方、
比較例のように、本発明の範囲を大きく逸脱した場合、
加工性，耐食性，再塗装性いずれかの項目において、性
能が劣った。[Example] A lubricating film was applied on a plated steel sheet. Table 1 shows conditions for sample preparation, and Table 2 shows the evaluation results. The following items were evaluated for workability and formability: 1) Dynamic friction coefficient: Measured using a Bowden-Lepens-type measuring instrument with an 8 mm steel ball and a load of 1.3 kg. 2) Limiting draw ratio: Punch diameter 40 by changing blank diameter
mm cup processing is performed and the processing limit is measured. 3) Adhesion of coating film: cup processing with a drawing ratio of 2.0 was performed, the side surface of the cup was peeled off with cellophane tape, and the degree of peeling was evaluated. 4) Appearance after processing: cup processing with a drawing ratio of 2.0,
Visually evaluate the appearance of the cup. 5) Corrosion resistance: evaluated by a salt spray test. 6) Repaintability: The imprinting and ink familiarity were evaluated with "Immortal Ink" manufactured by Shachihata Co., Ltd. As shown in Table 2, the product according to the present invention showed good properties in all items such as dynamic friction coefficient, limiting drawing ratio, coating film adhesion, appearance after processing, corrosion resistance, and repaintability. on the other hand,
As in the comparative example, when the range of the present invention is largely deviated,
Performance was poor in terms of workability, corrosion resistance, and repaintability.
【００２３】 [0023]
【００２４】 [0024]
【００２５】 [0025]
【発明の効果】本発明の潤滑鋼板は、表２に示すよう
に、動摩擦係数が０.１４以下，限界絞り比が２.２以上
であり、プレス加工性に優れており、無塗油での成形加
工が可能である。しかも、加工後の外観，塗膜密着性お
よび耐食性に優れるため、省工程化，作業環境改善の目
的を達成できる。As shown in Table 2, the lubricated steel sheet of the present invention has a dynamic friction coefficient of 0.14 or less and a limiting drawing ratio of 2.2 or more, is excellent in press workability, and is oil-free. Can be processed. Moreover, since the appearance after processing, the coating film adhesion and the corrosion resistance are excellent, it is possible to achieve the object of the process saving and the working environment improvement.
Claims (1)
ーセントのフッ化エチレン樹脂の粒子を種にしてエチレ
ン−不飽和カルボン酸共重合体を保護コロイドとして吸
着させ、そこにアクリルなどを吸収させた後、重合し変
性した水溶液に、２０から６０重量パーセントの二酸化
ケイ素，アルミナの１種以上を添加、さらにそれらの固
形分濃度に対して１から４重量パーセントのクロム酸ナ
トリウム，ポリリン酸アルミニウム，メタホウ酸バリウ
ムなどの中性あるいはアルカリ性を示す防錆顔料を追加
し、その付着量が片面で乾燥重量で０.３から４ｇ／ｍ2
である樹脂皮膜をめっき鋼板の両面あるいは片面に有す
ることを特徴とする加工性および耐食性に優れた潤滑鋼
板。1. An ethylene-unsaturated carboxylic acid copolymer is adsorbed as a protective colloid using particles of a fluorinated ethylene resin having a blending amount of 5 to 20% by weight in a dry film as a seed, and acryl or the like is absorbed therein. After that, 20 to 60% by weight of one or more of silicon dioxide and alumina are added to the polymerized and modified aqueous solution, and further 1 to 4% by weight of sodium chromate and aluminum polyphosphate based on their solid content concentration. , Neutral or alkaline anticorrosive pigment such as barium metaborate is added, and the amount of adhesion is 0.3 to 4g / m 2 on a dry weight side.
A lubricated steel sheet having excellent workability and corrosion resistance, characterized in that it has a resin film that is on both sides or one side of a plated steel sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9831393A JP3014561B2 (en) | 1993-04-02 | 1993-04-02 | Lubricated steel sheet with excellent workability and corrosion resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9831393A JP3014561B2 (en) | 1993-04-02 | 1993-04-02 | Lubricated steel sheet with excellent workability and corrosion resistance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06286054A true JPH06286054A (en) | 1994-10-11 |
| JP3014561B2 JP3014561B2 (en) | 2000-02-28 |
Family
ID=14216439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9831393A Expired - Fee Related JP3014561B2 (en) | 1993-04-02 | 1993-04-02 | Lubricated steel sheet with excellent workability and corrosion resistance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3014561B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9005355B2 (en) | 2010-10-15 | 2015-04-14 | Bunge Amorphic Solutions Llc | Coating compositions with anticorrosion properties |
| US9023145B2 (en) | 2008-02-12 | 2015-05-05 | Bunge Amorphic Solutions Llc | Aluminum phosphate or polyphosphate compositions |
| US9169120B2 (en) | 2004-08-30 | 2015-10-27 | Bunge Amorphic Solutions Llc | Aluminum phosphate or polyphosphate particles for use as pigments in paints and method of making same |
| US9187653B2 (en) | 2004-08-30 | 2015-11-17 | Bunge Amorphic Solutions Llc | Aluminum phosphate, polyphosphate, and metaphosphate particles and their use as pigments in paints and method of making same |
| US9371454B2 (en) | 2010-10-15 | 2016-06-21 | Bunge Amorphic Solutions Llc | Coating compositions with anticorrosion properties |
| US9611147B2 (en) | 2012-04-16 | 2017-04-04 | Bunge Amorphic Solutions Llc | Aluminum phosphates, compositions comprising aluminum phosphate, and methods for making the same |
| US9801385B2 (en) | 2012-04-16 | 2017-10-31 | Bunge Amorphic Solutions Llc | Antimicrobial chemical compositions |
| US9955700B2 (en) | 2013-03-15 | 2018-05-01 | Bunge Amorphic Solutions Llc | Antimicrobial chemical compositions |
-
1993
- 1993-04-02 JP JP9831393A patent/JP3014561B2/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9169120B2 (en) | 2004-08-30 | 2015-10-27 | Bunge Amorphic Solutions Llc | Aluminum phosphate or polyphosphate particles for use as pigments in paints and method of making same |
| US9187653B2 (en) | 2004-08-30 | 2015-11-17 | Bunge Amorphic Solutions Llc | Aluminum phosphate, polyphosphate, and metaphosphate particles and their use as pigments in paints and method of making same |
| US9023145B2 (en) | 2008-02-12 | 2015-05-05 | Bunge Amorphic Solutions Llc | Aluminum phosphate or polyphosphate compositions |
| US9005355B2 (en) | 2010-10-15 | 2015-04-14 | Bunge Amorphic Solutions Llc | Coating compositions with anticorrosion properties |
| US9371454B2 (en) | 2010-10-15 | 2016-06-21 | Bunge Amorphic Solutions Llc | Coating compositions with anticorrosion properties |
| US9840625B2 (en) | 2010-10-15 | 2017-12-12 | Bunge Amorphic Solutions Llc | Coating compositions with anticorrosion properties |
| US9611147B2 (en) | 2012-04-16 | 2017-04-04 | Bunge Amorphic Solutions Llc | Aluminum phosphates, compositions comprising aluminum phosphate, and methods for making the same |
| US9801385B2 (en) | 2012-04-16 | 2017-10-31 | Bunge Amorphic Solutions Llc | Antimicrobial chemical compositions |
| US9955700B2 (en) | 2013-03-15 | 2018-05-01 | Bunge Amorphic Solutions Llc | Antimicrobial chemical compositions |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3014561B2 (en) | 2000-02-28 |
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