JP2952838B2 - Lubricated coated steel sheet with excellent deep drawability - Google Patents

Lubricated coated steel sheet with excellent deep drawability

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Publication number
JP2952838B2
JP2952838B2 JP20834491A JP20834491A JP2952838B2 JP 2952838 B2 JP2952838 B2 JP 2952838B2 JP 20834491 A JP20834491 A JP 20834491A JP 20834491 A JP20834491 A JP 20834491A JP 2952838 B2 JP2952838 B2 JP 2952838B2
Authority
JP
Japan
Prior art keywords
steel sheet
resin
film
weight
coated
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
Application number
JP20834491A
Other languages
Japanese (ja)
Other versions
JPH0551768A (en
Inventor
勝士 斉藤
俊之 勝見
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
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Filing date
Publication date
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP20834491A priority Critical patent/JP2952838B2/en
Publication of JPH0551768A publication Critical patent/JPH0551768A/en
Application granted granted Critical
Publication of JP2952838B2 publication Critical patent/JP2952838B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Application Of Or Painting With Fluid Materials (AREA)
  • Laminated Bodies (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は潤滑性に優れた高性能な
潤滑めっき鋼板に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high performance lubricated plated steel sheet having excellent lubricity.

【0002】[0002]

【従来の技術】従来加工後塗装されていたポスト塗装鋼
板に代わって、薄い有機皮膜を被覆した表面処理鋼板が
使用されている。この鋼板は下地に亜鉛系のめっき皮膜
を有し、その上に有機皮膜を被覆したもので、溶接が可
能で、密着加工性および耐食性に良好な特性をもってい
る。
2. Description of the Related Art A surface-treated steel sheet coated with a thin organic film is used in place of a post-painted steel sheet which has been coated after processing. This steel sheet has a zinc-based plating film as a base and is coated with an organic film thereon, and can be welded, and has good properties in adhesion workability and corrosion resistance.

【0003】公開された技術としては特開昭60−50
181号公報、特開昭63−162886号公報記載の
ものが挙げられる。前者は亜鉛系のめっき鋼板の上にク
ロメート皮膜とシリカを分散した樹脂塗料をドライ膜厚
で0.01〜4.0μm被覆したものである。また、後
者は亜鉛系のめっき鋼板の上にクロメート皮膜とシリカ
およびテフロン潤滑剤を分散した樹脂塗料をドライ膜厚
で0.01〜4.0μm被覆し、潤滑性を付与したもの
である。これらの表面処理鋼板はめっき、クロメート、
有機シリケート皮膜複合効果によって耐食性、溶接性、
密着加工性、潤滑性を与えるもので品質改良を目的とし
て開発が現在も進められている。
[0003] The disclosed technology is disclosed in Japanese Patent Application Laid-Open No. 60-50 / 1985.
181 and JP-A-63-162886. The former is obtained by coating a zinc-based plated steel sheet with a resin coating material in which a chromate film and silica are dispersed in a dry film thickness of 0.01 to 4.0 μm. The latter is obtained by coating a zinc-based plated steel sheet with a chromate film and a resin coating material in which silica and a Teflon lubricant are dispersed in a dry film thickness of 0.01 to 4.0 μm to provide lubricity. These surface-treated steel sheets are plated, chromated,
Corrosion resistance, weldability,
It is being developed for the purpose of improving the quality by providing adhesion workability and lubricity.

【0004】[0004]

【発明が解決しようとする課題】従来技術は使用範囲の
拡大、例えば曲げ加工や浅い絞り加工製品への適用につ
いては幅広く適用されている。しかしながら、近年の徹
底したコスト削減、省力化、環境問題を解決するため、
高速で且つ深い絞り加工分野への対応が可能なプレス油
省略型プレコート潤滑鋼板の開発の要求が強くなってい
る。高速深絞り加工では高粘性の潤滑油が使用されてき
たが、従来の潤滑鋼板では潤滑油に相当する品質が十分
とは言えない。特に高速加工では金型と鋼板の摩擦熱に
より潤滑皮膜の粘弾性が著しく変化する。皮膜の軟化点
(ガラス転移点;Tg点)の低い樹脂皮膜では、連続プ
レスにより樹脂皮膜が高い面圧としごきにより剥離した
皮膜と金属同士の接触により剥離しためっき金属が金型
にビルドアップし、「かじり」が発生する。特に水性樹
脂塗料はTg点が低く、かじりが発生しやすいため、従
来技術での解決が難しい。しかしながら、水性樹脂塗料
は溶剤対策(排気、爆発)の必要がなく、低温、短時間
焼付の特徴から製造面では有利である。従ってプレス油
省略可能な潤滑樹脂、特に水性潤滑樹脂を用いる潤滑鋼
板の開発が要望されている。本発明はこの問題を解決し
た潤滑鋼板を提供することを目的とするものである。
The prior art has been widely used for expanding the range of use, for example, for bending and shallow drawing products. However, in order to thoroughly reduce costs, save labor, and solve environmental problems in recent years,
There is an increasing demand for the development of a pre-coated lubricating steel sheet with no press oil, which is capable of responding to the high-speed and deep drawing field. High-viscosity lubricating oils have been used in high-speed deep drawing, but the quality equivalent to lubricating oils in conventional lubricating steel plates cannot be said to be sufficient. In particular, in high-speed processing, the viscoelasticity of the lubricating film changes significantly due to frictional heat between the mold and the steel sheet. In the case of a resin film with a low softening point (glass transition point; Tg point), the resin film has a high surface pressure by continuous pressing, and the film that has been peeled off by ironing and the plated metal that has been peeled off by metal-to-metal contact build up into a mold. , "Galling" occurs. In particular, water-based resin coatings have a low Tg point and are apt to seize, so that it is difficult to solve the problem with the conventional technology. However, water-based resin paints are advantageous in terms of production because they do not require solvent measures (exhaust, explosion) and are characterized by low temperature and short-time baking. Therefore, there is a demand for the development of a lubricating steel sheet using a lubricating resin that can omit press oil, particularly an aqueous lubricating resin. An object of the present invention is to provide a lubricating steel plate that solves this problem.

【0005】[0005]

【課題を解決するための手段】本発明の要旨とするとこ
ろは下記のとおりである。 (1)めっき鋼板の表面にCr換算で10〜100mg
/m2 のクロメート皮膜および樹脂100重量部に対し
てシリカを固形分で5〜50重量部の割合で含有する樹
脂皮膜をドライ付着量として0.5〜3.0g/m2
覆した樹脂被覆めっき鋼板において、有機りん、りん酸
エステル化合物の1種以上をP付着量として1〜30m
g/m2 クロメート皮膜の下層に被覆したかもしくはク
ロメート皮膜中に含有させたことを特徴とする深絞り加
工性に優れた潤滑めっき鋼板。
The gist of the present invention is as follows. (1) 10 to 100 mg in terms of Cr on the surface of a plated steel sheet
/ M 2 chromate film and resin coating containing 0.5 to 3.0 g / m 2 as a dry coating amount of a resin film containing 5 to 50 parts by weight of silica as a solid based on 100 parts by weight of resin In a plated steel sheet, one or more of organic phosphorus and a phosphoric acid ester compound is 1 to 30 m in P adhesion amount.
g / m 2 A lubricated plated steel sheet excellent in deep drawability characterized by being coated on the lower layer of a chromate film or contained in a chromate film.

【0006】(2)めっき鋼板の表面にCr換算で10
〜100mg/m2 のクロメート皮膜および樹脂100
重量部に対してシリカを固形分で5〜50重量部、同じ
く潤滑剤を5〜25重量部の割合で含有する樹脂皮膜を
ドライ付着量として0.5〜3.0g/m2 被覆した樹
脂被覆めっき鋼板において、有機りん、りん酸エステル
化合物の1種以上をP付着量として1〜30mg/m2
クロメート皮膜の下層に被覆したかもしくはクロメート
皮膜中に含有させたことを特徴とする深絞り加工性に優
れた潤滑めっき鋼板。
(2) The surface of a plated steel sheet is converted to Cr by 10%.
100 mg / m 2 chromate film and resin 100
Resin coated with 0.5 to 3.0 g / m 2 as a dry coating amount of a resin film containing 5 to 50 parts by weight of silica and 5 to 25 parts by weight of a lubricant with respect to parts by weight. In the coated plated steel sheet, 1 to 30 mg / m 2 of one or more of organic phosphorus and a phosphate compound is used as a P adhesion amount.
A lubricated plated steel sheet excellent in deep drawability characterized by being coated under the chromate film or contained in the chromate film.

【0007】[0007]

【作用】本発明は基本的にはめっき表面に金型と鋼板の
境界潤滑皮膜を形成させ、クロメートおよび樹脂塗料を
被覆したプレス油省略型潤滑鋼板の開発に成功したもの
である。プレスにおける潤滑は液体およびワックス等の
いわゆる摩擦係数の低い流体もしくは有機系の固体潤滑
剤による潤滑が主体であるが、ここで要求される高速の
深絞りプレス加工では面圧が高く且つ加工スピードが速
いため、通常の潤滑油による潤滑皮膜が破壊、排除され
易く、従って金型と鋼板の接触による凝着が生じ易く、
「かじり」が発生する。この問題を解決するため潤滑油
を高粘度化し、さらに各種の添加剤を加えた潤滑油が使
用される。
According to the present invention, a lubricating steel plate having no press oil and having a lubricating film formed between a mold and a steel plate formed on a plating surface and coated with a chromate and a resin paint has been successfully developed. Lubrication in the press is mainly lubrication with a fluid having a low coefficient of friction such as liquid and wax or an organic solid lubricant, but the high-speed deep drawing press required here requires high surface pressure and high processing speed. Because it is fast, the lubricating film with normal lubricating oil is easily broken and removed, and therefore, adhesion due to contact between the mold and the steel sheet is easy to occur,
"Gnacking" occurs. In order to solve this problem, a lubricating oil having a high viscosity and further adding various additives is used.

【0008】本発明鋼板の潤滑作用は、プレス潤滑特性
を従来の流体潤滑および固体潤滑皮膜の特性を堅持しつ
つ、プレスの最も厳しい部分での金属同士の凝着を防止
する境界潤滑に寄与する皮膜を形成させたことにより付
与するものである。以下本発明鋼板の潤滑皮膜構成につ
いて説明する。本発明の潤滑鋼板の断面構成図を図1に
示す。
The lubricating action of the steel sheet of the present invention contributes to boundary lubrication for preventing the adhesion of metals in the strictest part of the press, while maintaining the press lubrication properties of the conventional fluid lubrication and solid lubricating films. It is provided by forming a film. Hereinafter, the lubricating film configuration of the steel sheet of the present invention will be described. FIG. 1 shows a sectional configuration view of the lubricated steel sheet of the present invention.

【0009】図1(ア)は予めりん系の境界潤滑皮膜を
めっき表面に形成し、その上にクロメートおよび樹脂潤
滑皮膜を被覆した3層の皮膜構成模式図、(イ)はりん
系の潤滑剤をクロメート皮膜に含ませた2層の皮膜構成
模式図、(ウ)はりん系の潤滑剤含有クロメート皮膜の
上に潤滑化合物含有樹脂皮膜を被覆した2層の皮膜構成
模式図を示したものである。いずれの場合もプレス加工
時に金属表面に形成するりん系潤滑皮膜によってかじり
が防止される。
FIG. 1 (a) is a schematic diagram of a three-layer structure in which a phosphorus-based boundary lubricating film is previously formed on a plating surface, and a chromate and resin lubricating film is coated thereon, and (a) is a phosphorus-based lubricating film. (C) shows a schematic diagram of a two-layer film in which a lubricating compound-containing resin film is coated on a phosphorus-based lubricant-containing chromate film. It is. In any case, galling is prevented by the phosphorus-based lubricating film formed on the metal surface during pressing.

【0010】以下各皮膜および成分について説明する。
めっき鋼板は従来の冷延、熱延鋼板にめっきした各種の
めっき鋼板を適用することができる。鋼板表面の粗度は
ブライトおよびダル仕上ともに使用できるが、潤滑性能
に粗度が影響することは知られており、適度の範囲に粗
度を管理することが望ましい。
Hereinafter, each film and components will be described.
As the plated steel sheet, various types of plated steel sheets obtained by plating a conventional cold-rolled or hot-rolled steel sheet can be applied. The surface roughness of the steel sheet can be used for both bright and dull finishes, but it is known that roughness affects lubrication performance, and it is desirable to control the roughness within an appropriate range.

【0011】めっき鋼板としては、電気、溶融、気相め
っきラインで製造されている亜鉛めっき鋼板、亜鉛合金
めっき鋼板、アルミニウムめっき鋼板に適用できる。め
っき厚としては通常生産されている1〜20μmに適用
できる。境界潤滑作用をつかさどるりん系潤滑剤は有機
りん、りん酸エステル化合物の1種以上で構成する。こ
の皮膜は化合物自身の凝着防止作用の他に、潤滑作用に
より、あるいは化学的に反応性に富んでいるため加工に
よって発生するめっき鋼板の新生面と化学結合すること
により金属の凝着を防止する。
As the coated steel sheet, the present invention can be applied to a galvanized steel sheet, a zinc alloy coated steel sheet, and an aluminum plated steel sheet manufactured in an electric, hot-dip, vapor-phase plating line. The plating thickness can be applied to 1 to 20 μm which is usually produced. The phosphorus-based lubricant responsible for boundary lubrication is composed of at least one of organic phosphorus and a phosphate compound. In addition to the anti-adhesion effect of the compound itself, this film prevents metal adhesion by lubricating or chemically bonding with the new surface of the plated steel sheet generated by processing because it is chemically reactive. .

【0012】これらの化合物としてはエチルアシッドフ
ォスフェート、ブトキシエチルアシッドフォスフェー
ト、エチレングリコールアシッドフォスフェート、オレ
イルアシッドフォスフェート、オレイルハイドロジェン
フォスファイト、トリクレジルフォスフェート、ジアル
キルフォスファイト、トリブチルフォスファイト、チオ
リン酸エステル等のPを5〜30%含有する有機りん、
りん酸エステル化合物である。疎水性のものはアミンや
アルカリ金属塩にするか、界面活性剤により親水化でき
る。
These compounds include ethyl acid phosphate, butoxyethyl acid phosphate, ethylene glycol acid phosphate, oleyl acid phosphate, oleyl hydrogen phosphite, tricresyl phosphate, dialkyl phosphite, tributyl phosphite, Organic phosphorus containing 5 to 30% of P such as thiophosphate,
It is a phosphate compound. Hydrophobic compounds can be converted to amines or alkali metal salts, or can be made hydrophilic by a surfactant.

【0013】りん系潤滑皮膜の付着量範囲は図1(ア)
の場合、Pとして1〜30mg/m 2 である。図1
(イ)、(ウ)では(ア)に相当するりん系潤滑剤のト
ータルがPとして1〜30mg/m2 になるようにクロ
メートおよび樹脂に調合し被覆する。P付着量が1mg
/m2 未満ではかじりに対して顕著な改善効果が認めら
れず、30mg/m2 超では密着性の劣化が実用的レベ
ルを超え好ましくない。
FIG. 1 (A) shows the range of the amount of the phosphorus-based lubricating film applied.
In the case of, 1 to 30 mg / m as P TwoIt is. FIG.
In (a) and (c), the phosphorus-based lubricant equivalent to (a)
Total is 1 to 30 mg / m as PTwoBlack
Mix and coat with mates and resins. 1 mg of P attached
/ MTwoIf less than 10, a remarkable improvement effect on galling was observed.
30mg / mTwoIn the case of super, deterioration of adhesion is practical level
Is not preferable.

【0014】クロメート皮膜としては電解および塗布型
クロメート皮膜が本発明に含まれるが塗布型のクロメー
ト皮膜が望ましい。クロメート皮膜は還元したクロム酸
にシリカ、りん酸、親水性樹脂の1種以上および必要に
より上述したりん系潤滑剤を加えたクロメート液を塗布
し、乾燥したクロメート皮膜が望ましい。クロメート付
着量はクロムとして10〜100mg/m2 が本発明の
範囲である。クロムとしての付着量が10mg/m2
満では耐食性が不十分であり、100mg/m 2 超では
潤滑樹脂皮膜との密着性が劣化し好ましくない。
Electrolytic and coating type chromate films
Although a chromate film is included in the present invention,
Is preferred. Chromate film is reduced chromic acid
One or more of silica, phosphoric acid and hydrophilic resin
Apply chromate liquid with phosphorus-based lubricant
A dried chromate film is preferred. With chromate
10-100 mg / m as chromiumTwoOf the present invention
Range. Adhesion amount as chromium is 10mg / mTwoNot yet
In the case of full, the corrosion resistance is insufficient, and 100 mg / m TwoIn super
The adhesion to the lubricating resin film deteriorates, which is not preferable.

【0015】本発明鋼板の最上層は、樹脂100重量部
に対してシリカを固形分で5〜50重量部の割合で含有
する樹脂皮膜およびさらに必要に応じて樹脂に対してワ
ックス潤滑剤を5〜25重量部の割合で加えた潤滑樹脂
皮膜の2つをベースとし、必要により脂肪酸石鹸や極圧
添加剤を加えた皮膜をドライ付着量として0.5〜3.
0g/m2 被覆した潤滑樹脂皮膜層である。
The uppermost layer of the steel sheet of the present invention comprises a resin film containing silica in a proportion of 5 to 50 parts by weight of solids with respect to 100 parts by weight of the resin, and optionally a wax lubricant for the resin. 2 to 25 parts by weight of a lubricating resin film as a base, and a film to which a fatty acid soap or an extreme pressure additive is added if necessary, as a dry adhesion amount of 0.5 to 3.
This is a lubricating resin film layer coated with 0 g / m 2 .

【0016】本発明に用いる樹脂としてはアクリル樹
脂、エポキシ樹脂、ポリエステル樹脂、オレフィン樹
脂、フェノール樹脂、スチレン樹脂の親水性樹脂および
有機溶剤系樹脂を挙げることができ、必要によりメラミ
ン、アミン等の硬化剤を加える。本発明の効果は親水性
樹脂を用いる場合に顕著であり、望ましい。シリカは耐
食性および強度、靱性を与える目的で含有させる。樹脂
に対して5重量部未満では耐食性が得られず、50重量
部超では皮膜の加工性が劣化する。最も好ましいシリカ
含有率は10〜30重量部である。シリカは親水性樹脂
についてはシリカゾルが望ましく、有機溶剤系の樹脂に
ついてはドライシリカが適している。シリカの形状は1
次粒子径が2〜50nmで、2次凝集粒径は100nm
以下が適している。ゾルは略完全に1次粒子が均一に分
散しているが、ドライシリカは凝集している。またゾル
において人工的に非球形、例えば線状に成長させたもの
があり、球形シリカに比べ密着性、耐食性等の点で品質
が優れている。
The resins used in the present invention include acrylic resins, epoxy resins, polyester resins, olefin resins, phenolic resins, hydrophilic resins such as styrene resins, and organic solvent-based resins. Add the agent. The effect of the present invention is remarkable when a hydrophilic resin is used, and is desirable. Silica is contained for the purpose of providing corrosion resistance, strength and toughness. If the amount is less than 5 parts by weight with respect to the resin, the corrosion resistance cannot be obtained, and if the amount is more than 50 parts by weight, the workability of the film deteriorates. The most preferred silica content is 10 to 30 parts by weight. Silica is preferably silica sol for a hydrophilic resin, and dry silica is suitable for an organic solvent-based resin. Silica shape is 1
The secondary particle diameter is 2 to 50 nm and the secondary aggregation particle diameter is 100 nm
The following are suitable: In the sol, the primary particles are almost completely dispersed uniformly, whereas the dry silica is agglomerated. In addition, sols are artificially grown in a non-spherical shape, for example, in a linear shape, and are superior in quality in terms of adhesion, corrosion resistance, and the like as compared with spherical silica.

【0017】より良好な潤滑性能がワックス潤滑剤を樹
脂に対して5〜25重量部の割合で加えることにより達
成できる。樹脂に加える潤滑剤としては各種ワックス、
脂肪酸石鹸や極圧添加剤が含まれる。このうちワックス
が潤滑および皮膜の特性から最も好ましい。ワックスと
してはポリオレフィン(ポリエチレン、ポリプロピレ
ン)、フッ素系(ポリテトラフルオロエチレン、ポリク
ロロトリフルオロエチレン、ポリフッ化ビニリデン、ポ
リフッ化ビニル)が使用できる。含有率が5重量部未満
では顕著な潤滑効果が得られず、25重量部超では樹脂
皮膜の耐食性および上塗り塗料密着性が劣化するため好
ましくない。
[0017] Better lubrication performance can be achieved by adding a wax lubricant in a ratio of 5 to 25 parts by weight with respect to the resin. Various waxes,
Contains fatty acid soaps and extreme pressure additives. Of these, wax is most preferred from the viewpoint of lubrication and film properties. As the wax, polyolefin (polyethylene, polypropylene) and fluorine (polytetrafluoroethylene, polychlorotrifluoroethylene, polyvinylidene fluoride, polyvinyl fluoride) can be used. When the content is less than 5 parts by weight, a remarkable lubricating effect cannot be obtained, and when the content is more than 25 parts by weight, the corrosion resistance of the resin film and the adhesion of the top coating material are undesirably deteriorated.

【0018】これらの潤滑樹脂皮膜の付着量は0.5〜
3.0g/m2 の範囲である。付着量が0.5g/m2
未満では本発明の目的とする潤滑性および耐食性が得ら
れず、3.0g/m2 超では溶接できないという問題が
生じ、好ましくない。各皮膜はロールコーター、エアー
ナイフ、静電塗装、電解等公知の方法で塗布され、熱
風、赤外線、誘導加熱、ガス炉、電気炉等公知の方法に
よって焼付硬化される。
The amount of adhesion of these lubricating resin films is 0.5 to
It is in the range of 3.0 g / m 2 . 0.5 g / m 2
If it is less than 3.0 g / m 2 , the lubricating properties and corrosion resistance aimed at by the present invention cannot be obtained, and if it exceeds 3.0 g / m 2, there will be a problem that welding cannot be performed. Each film is applied by a known method such as a roll coater, an air knife, electrostatic coating, and electrolysis, and is baked and cured by a known method such as hot air, infrared rays, induction heating, a gas furnace, and an electric furnace.

【0019】[0019]

【実施例】実施例を挙げ本発明を説明する。実施例中の
浴成分は不揮発分としての濃度である。 実施例1 めっき量20g/m2 の12%Ni含有の電気亜鉛ニッ
ケルめっき鋼板の表面にP含有率21%のエチレングリ
コールアシッドフォスフェート(EGAPと略)エマル
ジョン液をドライ付着量として表1の如く塗布し、乾燥
した。その後、クロム還元比(Cr3+/全Cr)0.4
のクロム酸10g/lとコロイダルシリカ30g/lの
塗布型クロメート水溶液をロールコーターにてCr付着
量20mg/m2 塗布し、板温70℃に乾燥した。冷却
後、球形シリカゾル(径20nm)をオレフィンアクリ
ル樹脂100重量部に対して20重量部分散した樹脂塗
料をドライ付着量で1g/m2 塗布し、熱風焼付炉にて
板温120℃に焼付し、水冷した後乾燥した。
The present invention will be described by way of examples. The bath components in the examples are concentrations as nonvolatile components. Example 1 As shown in Table 1, an ethylene glycol acid phosphate (abbreviated as EGAP) emulsion having a P content of 21% was applied to the surface of an electrogalvanized nickel-plated steel sheet containing 12% Ni having a plating amount of 20 g / m 2 as a dry adhesion amount as shown in Table 1. Coated and dried. Then, the chromium reduction ratio (Cr 3+ / total Cr) 0.4
Of chromic acid of 10 g / l and 30 g / l of colloidal silica was applied by a roll coater to deposit 20 mg / m 2 of Cr and dried at a plate temperature of 70 ° C. After cooling, a spherical silica sol (diameter: 20 nm) dispersed in 20 parts by weight with respect to 100 parts by weight of the olefin acrylic resin was applied at a dry adhesion amount of 1 g / m 2, and baked in a hot air baking furnace to a sheet temperature of 120 ° C. After cooling with water, it was dried.

【0020】得られた樹脂被覆めっき鋼板の動摩擦係数
および角筒クランクプレスにて「かじり」を評価した。
動摩擦係数は直径10mmの鋼球に荷重を100g負荷
し100mm/分で移動させ、ロードセルにて張力
(g)を測定し張力/荷重で計算して求めた。クランク
プレスの条件はしわ抑え圧6トンで粗板(0.8×22
0×180mm)を65×115mm、高さ50mmに
成形し、粘着テープにて側面を剥離して模造紙に貼り、
色差計にて明度を測定した。
The kinetic friction coefficient of the obtained resin-coated plated steel sheet and "galling" were evaluated by a rectangular cylinder crank press.
The dynamic friction coefficient was determined by applying a load of 100 g to a steel ball having a diameter of 10 mm, moving the steel ball at 100 mm / min, measuring the tension (g) with a load cell, and calculating the tension / load. The condition of the crank press is a rough plate (0.8 × 22
0 × 180 mm) to a size of 65 × 115 mm and a height of 50 mm.
The lightness was measured with a color difference meter.

【0021】耐食性は塩水噴霧試験で白錆が面積率5%
発生した時間で評価し、塗料密着性は市販のエポキシメ
ラミン樹脂塗料をドライ付着量で20g/m2 塗布し、
熱風120℃、20分焼付後、十字エリクセン9mm絞
った後、粘着テープにて剥離して目視評価(剥離面積
率)した。結果を表1に示す。No.1はEGAPをめ
っき表面に10mg/m2 塗布した本発明例で、クラン
クプレス特性が、加工の厳しいコーナー、側面にかじり
が少し観察されたEGAP塗布なしの比較例No.4に
比べ、優れた結果を得た。No.2、3はEGAPの塗
布量を増やしたもので、かじりの少ない優れたクランク
プレス性を示した。No.3は塗料密着性が若干低下し
た。
The corrosion resistance was 5% in area ratio of white rust in salt spray test.
Evaluation was made based on the time of occurrence, and the coating adhesion was measured by applying a commercially available epoxy melamine resin coating at a dry adhesion amount of 20 g / m 2 ,
After baking with hot air at 120 ° C. for 20 minutes, the cross Erichsen was squeezed by 9 mm, then peeled off with an adhesive tape, and visually evaluated (peeling area ratio). Table 1 shows the results. No. Comparative Example No. 1 is an example of the present invention in which EGAP was applied to the plating surface at 10 mg / m 2 , and the crank press characteristics of Comparative Example No. Excellent results were obtained as compared with No. 4. No. Samples Nos. 2 and 3 showed an increase in the amount of EGAP applied, and exhibited excellent crank press properties with little galling. No. In No. 3, paint adhesion was slightly reduced.

【0022】実施例2 めっき量20g/m2 の電気亜鉛ニッケル合金めっき鋼
板の表面にP含有率21%のEGAPエマルジョン液を
3g/l、クロム還元比(Cr3+/全Cr)0.4のク
ロム酸10g/lとコロイダルシリカ30g/lの塗布
型クロメート液を表2に示すCr付着量でロールコータ
ーにて塗布し、板温70℃に乾燥した。冷却後、オレフ
ィンアクリル樹脂100重量部に対して球形シリカゾル
(径20nm)20重量部と、同じくポリテトラフルオ
ロエチレンワックス15重量部を分散した樹脂塗料をド
ライ付着量で1g/m2 塗布し、熱風焼付炉にて板温1
20℃に焼付し、水冷した後、乾燥した。評価は実施例
1に準じて行った。結果を表2に示す。
Example 2 3 g / l of an EGAP emulsion having a P content of 21% and a chromium reduction ratio (Cr 3+ / total Cr) of 0.4 were applied to the surface of a galvanized nickel alloy plated steel sheet having a plating amount of 20 g / m 2. Was applied by a roll coater with a Cr adhesion amount shown in Table 2 and dried at a plate temperature of 70 ° C. After cooling, 20 g of a spherical silica sol (20 nm in diameter) and 15 g of a polytetrafluoroethylene wax were dispersed in 100 g of an olefin acrylic resin in a dry coating amount of 1 g / m 2 , and hot air was applied. Sheet temperature in baking furnace 1
It was baked at 20 ° C., cooled with water and dried. The evaluation was performed according to Example 1. Table 2 shows the results.

【0023】No.5、6、7はEGAPを加えたクロ
メート液をめっき表面に塗布し、ワックス添加の樹脂を
被覆した本発明例で、摩擦係数が低く、クランクプレス
かじりが殆どない優れた結果を示した。No.8はEG
APを加えないクロメート液を塗布した比較例で、加工
の厳しいコーナー部にかじりが発生した。 実施例3 めっき量20g/m2 の電気亜鉛ニッケル合金めっき鋼
板の表面にP含有率21%のEGAPエマルジョン液を
3g/l、クロム還元比(Cr3+/全Cr)0.4のク
ロム酸10g/lとアクリル樹脂30g/lの塗布型ク
ロメート液をCr付着量20mg/m2 狙いでロールコ
ーターにて塗布し、板温70℃に乾燥した。冷却後、オ
レフィンアクリル樹脂100重量部に対して線状シリカ
ゾル(径20nm、長さ50nm)20重量部および同
じくポリエチレンワックス7重量部を分散した樹脂塗料
をドライ付着量で0.5、1.0、3.0g/m2 塗布
し、熱風焼付炉にて板温120℃に焼付し、水冷した
後、乾燥した。評価は実施例1に準じて行った。結果を
表3に示す。
No. Nos. 5, 6, and 7 are examples of the present invention in which a chromate solution to which EGAP was added was applied to the plating surface and a resin to which wax was added was coated, and showed excellent results with a low coefficient of friction and almost no crank press galling. No. 8 is EG
In the comparative example in which the chromate solution to which the AP was not added was applied, galling occurred in a severely processed corner portion. Example 3 3 g / l of an EGAP emulsion having a P content of 21% and a chromic acid having a chromium reduction ratio (Cr 3+ / total Cr) of 0.4 were applied on the surface of an electro-zinc nickel alloy plated steel sheet having a plating amount of 20 g / m 2. A coating type chromate solution of 10 g / l and an acrylic resin of 30 g / l was applied with a roll coater with the aim of a Cr adhesion amount of 20 mg / m 2 , and dried at a plate temperature of 70 ° C. After cooling, 20 parts by weight of a linear silica sol (diameter 20 nm, length 50 nm) and 7 parts by weight of polyethylene wax were dispersed in 100 parts by weight of the olefin acrylic resin, and the resin coating was dispersed in a dry adhesion amount of 0.5 to 1.0. 3.0 g / m 2 was applied, baked at a sheet temperature of 120 ° C. in a hot air baking furnace, cooled with water, and then dried. The evaluation was performed according to Example 1. Table 3 shows the results.

【0024】No.9、10、11はワックス添加樹脂
の付着量を0.5、1.0、3.0g/m2 として塗布
した本発明例で、No.10、11はかじりの発生はな
く、No.9のコーナー部にかじりが発生したのみで優
れたクランクプレス性を示した。 実施例4 めっき量20g/m2 の電気亜鉛ニッケル合金めっき鋼
板の表面にP含有率21%のEGAPエマルジョン液を
3g/l、クロム還元比(Cr3+/全Cr)0.4のク
ロム酸10g/lとアクリル樹脂30g/lの塗布型ク
ロメート液をCr付着量20mg/m2 狙いでロールコ
ーターにて塗布し、板温70℃に乾燥した。冷却後、オ
レフィンアクリル樹脂100重量部に対して線状シリカ
ゾル(径20nm、長さ50nm)20重量部および同
じくポリテトラフルオロエチレンワックス15重量部を
分散した樹脂塗料をドライ付着量で1.0g/m2 塗布
し、熱風焼付炉にて板温120℃に焼付し、水冷した
後、乾燥した。評価は実施例1に準じて行った。結果を
表3No.12に示したように非常に優れたクランクプ
レス性を示した。
No. Nos. 9, 10, and 11 are examples of the present invention in which the amount of the wax-added resin applied was 0.5, 1.0, and 3.0 g / m 2 . In Nos. 10 and 11, no galling occurred. No. 9 exhibited excellent crank pressability only with galling at the corners. Example 4 3 g / l of an EGAP emulsion having a P content of 21% on the surface of an electro-zinc nickel alloy-plated steel sheet having a plating amount of 20 g / m 2 and a chromic acid having a chromium reduction ratio (Cr 3+ / total Cr) of 0.4 A coating type chromate solution of 10 g / l and an acrylic resin of 30 g / l was applied with a roll coater with the aim of a Cr adhesion amount of 20 mg / m 2 , and dried at a plate temperature of 70 ° C. After cooling, 20 g of a linear silica sol (20 nm in diameter, 50 nm in length) and 15 g of a polytetrafluoroethylene wax were dispersed in 100 g of an olefin acrylic resin in a dry coating amount of 1.0 g / m 2 was applied, baked at a plate temperature of 120 ° C. in a hot air baking furnace, cooled with water, and then dried. The evaluation was performed according to Example 1. The results are shown in Table 3 No. As shown in FIG. 12, very excellent crank pressability was exhibited.

【0025】実施例5 めっき量20g/m2 の電気亜鉛ニッケル合金めっき鋼
板の表面にP含有率22%のエチルアシッドフォスフェ
ート(EAP)エマルジョン液を不揮発分として1g/
l、クロム還元比(Cr3+/全Cr)0.4のクロム酸
10g/lと線状シリカゾル(径20nm、長さ50n
m)シリカ30g/lの塗布型クロメート液をCr付着
量60mg/m2 狙いでロールコーターにて塗布し、板
温70℃に乾燥した。冷却後、オレフィンアクリル樹脂
100重量部に対して線状シリカゾル(径20nm、長
さ50nm)20重量部および同じくポリテトラフルオ
ロエチレンワックス15重量部を分散した樹脂塗料をド
ライ付着量で1.0g/m 2 塗布し、熱風焼付炉にて板
温120℃に焼付し、水冷した後、乾燥した。評価は実
施例1に準じて行った。結果は表3No.13に示した
ように非常に優れたクランクプレス性を示した。
Example 5 Plating amount 20 g / mTwoElectric zinc-nickel alloy plated steel
Ethyl acid phosphate with 22% P content on the surface of the plate
(EAP) emulsion liquid as 1 g /
l, chromium reduction ratio (Cr3+/ All Cr) 0.4 chromic acid
10 g / l and linear silica sol (diameter 20 nm, length 50 n
m) Adhesion of chromate solution of 30g / l silica to Cr
60mg / mTwoApply with a roll coater to aim
It was dried at a temperature of 70 ° C. After cooling, olefin acrylic resin
100 parts by weight of linear silica sol (diameter 20 nm, length
50 nm) 20 parts by weight and also polytetrafluoro
A resin paint with 15 parts by weight of ethylene wax dispersed
1.0 g / m in rye adhesion TwoApply and plate in hot air baking oven
It was baked to a temperature of 120 ° C., cooled with water, and then dried. Evaluation is real
It carried out according to Example 1. The results are shown in Table 3 No. 13
As shown, very excellent crank pressability was exhibited.

【0026】実施例6 めっき量20g/m2 の電気亜鉛めっき鋼板の表面にP
含有率21%のEGAPエマルジョン液を3g/l、ク
ロム還元比(Cr3+/全Cr)0.4のクロム酸10g
/lとコロイダルシリカ30g/lの塗布型クロメート
液を表4に示すCr付着量でロールコーターにて塗布
し、板温70℃に乾燥した。冷却後、表4に示す水性エ
マルジョン樹脂100重量部に対して球形シリカゾル
(径20nm)20重量部および同じくポリテトラフル
オロエチレンワックス15重量部を分散した樹脂塗料を
ドライ付着量で1g/m2 塗布し、熱風焼付炉にて板温
120℃に焼付し、水冷した後、乾燥した。評価は実施
例1に準じて行った。結果を表4に示す。
Example 6 P was applied to the surface of an electrogalvanized steel sheet having a plating amount of 20 g / m 2.
3 g / l of 21% EGAP emulsion solution, 10 g of chromic acid having a chromium reduction ratio (Cr 3+ / total Cr) of 0.4
/ L and a coating type chromate solution of 30 g / l of colloidal silica were applied by a roll coater with a Cr adhesion amount shown in Table 4, and dried at a plate temperature of 70 ° C. After cooling, 20 g of a spherical silica sol (20 nm in diameter) and 15 g of a polytetrafluoroethylene wax were dispersed in 100 g of the aqueous emulsion resin shown in Table 4 and 1 g / m 2 of dry adhesion was applied thereto. Then, the plate was baked at a plate temperature of 120 ° C. in a hot air baking furnace, cooled with water, and then dried. The evaluation was performed according to Example 1. Table 4 shows the results.

【0027】本実施例は最上層の樹脂皮膜の樹脂の種類
についての本発明例で、No.14はウレタンエポキシ
樹脂、No.15はエチレンイミンアクリル樹脂の例で
ある。プレス性を含め良好な結果を得た。No.16は
スチレンアクリル樹脂で皮膜が硬く、クランクプレスで
コーナーに若干かじりが発生した。No.17はエポキ
シアクリル、No.18はポリエステルの本発明例であ
る。プレス性等全般に良好な結果を得た。
This embodiment is an example of the present invention regarding the type of resin of the uppermost resin film. No. 14 is a urethane epoxy resin; 15 is an example of an ethylene imine acrylic resin. Good results including pressability were obtained. No. No. 16 was a styrene acrylic resin whose film was hard, and a slight galling occurred at a corner by a crank press. No. No. 17 is an epoxy acryl; 18 is an example of the present invention of polyester. Good results were obtained in all aspects such as pressability.

【0028】実施例7めっき量20g/m2 の電気亜鉛
めっき鋼板の表面にP含有率21%のEGAPエマルジ
ョン液を3g/l、クロム還元比(Cr3+/全Cr)
0.4のクロム酸10g/lとコロイダルシリカ30g
/lの塗布型クロメート液を表5に示すCr付着量でロ
ールコーターにて塗布し、板温70℃に乾燥した。冷却
後、ドライシリカ(1次粒径20nm、2次凝集粒径5
0nm)を表5に示す有機溶剤希釈の樹脂100重量部
に対してドライシリカ(1次粒径20nm、2次凝集粒
径50nm)20重量部および同じくポリテトラフルオ
ロエチレンワックス15重量部、EGAP3重量部を分
散した樹脂塗料をドライ付着量で1g/m2 塗布し、熱
風焼付炉にて板温150℃に焼付し、水冷した後乾燥し
た。評価は実施例1に準じて行った。結果を表5に示
す。
Example 7 3 g / l of an EGAP emulsion having a P content of 21% was applied to the surface of an electrogalvanized steel sheet having a plating amount of 20 g / m 2 at a chromium reduction ratio (Cr 3+ / total Cr).
0.4 g of chromic acid 10 g / l and colloidal silica 30 g
/ L of a coating type chromate solution was applied by a roll coater with a Cr adhesion amount shown in Table 5, and dried at a plate temperature of 70 ° C. After cooling, dry silica (primary particle size 20 nm, secondary aggregate particle size 5
0 nm), 20 parts by weight of dry silica (primary particle diameter: 20 nm, secondary aggregation particle diameter: 50 nm), 15 parts by weight of polytetrafluoroethylene wax, and 3 parts by weight of EGAP based on 100 parts by weight of the resin diluted with the organic solvent shown in Table 5. 1 g / m 2 of the resin coating material in which the parts were dispersed was applied in a dry adhesion amount, baked at a plate temperature of 150 ° C. in a hot air baking furnace, cooled with water, and dried. The evaluation was performed according to Example 1. Table 5 shows the results.

【0029】本実施例は有機溶剤希釈性の樹脂を用いた
ものである。No.19、20、21、22のいずれも
かじりの発生しない優れたプレス特性を示す。
In this embodiment, an organic solvent-dilutable resin is used. No. 19, 20, 21 and 22 all show excellent press characteristics without galling.

【0030】[0030]

【表1】 [Table 1]

【0031】[0031]

【表2】 [Table 2]

【0032】[0032]

【表3】 [Table 3]

【0033】[0033]

【表4】 [Table 4]

【0034】[0034]

【表5】 [Table 5]

【0035】[0035]

【発明の効果】本発明の鋼板は、プレス油除去に使われ
ていた塩素系の溶剤を使用する必要がないので環境の汚
染防止に寄与し、また、本発明鋼板を用いることにより
作業工程が簡略化されるため省力化、職場環境の美麗化
の効果がある。この他、本発明鋼板は耐食性に優れてい
ることから従来加工後塗装していた工程も省略できる。
The steel sheet of the present invention does not require the use of a chlorine-based solvent used for removing press oil, thus contributing to the prevention of environmental pollution. Because it is simplified, it has the effect of labor saving and beautiful work environment. In addition, since the steel sheet of the present invention is excellent in corrosion resistance, the step of coating after the conventional processing can be omitted.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の皮膜の構成図を示す模式図である。FIG. 1 is a schematic diagram showing a configuration diagram of a film of the present invention.

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 FI C25D 5/26 C25D 5/26 P 11/38 301 11/38 301Z ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code FI C25D 5/26 C25D 5/26 P 11/38 301 11/38 301Z

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 めっき鋼板の表面にCr換算で10〜1
00mg/m2 のクロメート皮膜および樹脂100重量
部に対してシリカを固形分で5〜50重量部の割合で含
有する樹脂皮膜をドライ付着量として0.5〜3.0g
/m2 被覆した樹脂被覆めっき鋼板において、有機り
ん、りん酸エステル化合物の1種以上をP付着量として
1〜30mg/m2 クロメート皮膜の下層に被覆したか
もしくはクロメート皮膜中に含有させたことを特徴とす
る深絞り加工性に優れた潤滑めっき鋼板。
1. The surface of a plated steel sheet is 10 to 1 in terms of Cr.
A chromate film of 00 mg / m 2 and a resin film containing silica at a ratio of 5 to 50 parts by weight as a solid content with respect to 100 parts by weight of the resin are 0.5 to 3.0 g as a dry adhesion amount.
/ M 2 coated resin-coated steel sheet coated with 1 to 30 mg / m 2 of the organic phosphorus or phosphate compound as a P adhesion amount in the lower layer of the chromate film or contained in the chromate film Lubricated coated steel sheet with excellent deep drawability characterized by:
【請求項2】 めっき鋼板の表面にCr換算で10〜1
00mg/m2 のクロメート皮膜および樹脂100重量
部に対してシリカを固形分で5〜50重量部、同じく潤
滑剤を5〜25重量部の割合で含有する樹脂皮膜をドラ
イ付着量として0.5〜3.0g/m2 被覆した樹脂被
覆めっき鋼板において、有機りん、りん酸エステル化合
物の1種以上をP付着量として1〜30mg/m2 クロ
メート皮膜の下層に被覆したかもしくはクロメート皮膜
中に含有させたことを特徴とする深絞り加工性に優れた
潤滑めっき鋼板。
2. The surface of a plated steel sheet is 10 to 1 in terms of Cr.
A dry coating amount of a resin film containing 5 to 50 parts by weight of silica and 5 to 25 parts by weight of a lubricant based on 100 mg by weight of a 00 mg / m 2 chromate film and 100 parts by weight of a resin. In a resin-coated plated steel sheet coated with 3.0 g / m 2 , at least one of organic phosphorus and a phosphate compound is coated as a P coating amount on a lower layer of 1-30 mg / m 2 chromate film or in a chromate film. Lubricated coated steel sheet with excellent deep drawability characterized by containing.
JP20834491A 1991-08-20 1991-08-20 Lubricated coated steel sheet with excellent deep drawability Expired - Lifetime JP2952838B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20834491A JP2952838B2 (en) 1991-08-20 1991-08-20 Lubricated coated steel sheet with excellent deep drawability

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20834491A JP2952838B2 (en) 1991-08-20 1991-08-20 Lubricated coated steel sheet with excellent deep drawability

Publications (2)

Publication Number Publication Date
JPH0551768A JPH0551768A (en) 1993-03-02
JP2952838B2 true JP2952838B2 (en) 1999-09-27

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