JP3536489B2 - Stripped lubricated steel sheet with excellent deep drawability and galling resistance - Google Patents

Stripped lubricated steel sheet with excellent deep drawability and galling resistance

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Publication number
JP3536489B2
JP3536489B2 JP31520095A JP31520095A JP3536489B2 JP 3536489 B2 JP3536489 B2 JP 3536489B2 JP 31520095 A JP31520095 A JP 31520095A JP 31520095 A JP31520095 A JP 31520095A JP 3536489 B2 JP3536489 B2 JP 3536489B2
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JP
Japan
Prior art keywords
steel sheet
galling resistance
deep drawability
acid
stripped
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
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JP31520095A
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Japanese (ja)
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JPH09156029A (en
Inventor
木 幸 子 鈴
形 浩 行 尾
岸 英 夫 大
瀬 義 弘 成
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JFE Steel Corp
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JFE Steel Corp
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Description

【発明の詳細な説明】 【0001】 【発明の属する技術分野】本発明は、脱膜型潤滑鋼板に
関し、特に、脱膜性、耐ブロッキング性等を維持しつ
つ、深絞り性、耐カジリ性に優れるため、プレス加工さ
れる鋼板、例えば、熱延酸洗鋼板、冷延鋼板、各種表面
処理鋼板として好適な脱膜型潤滑鋼板に関する。 【0002】 【従来の技術】従来、鋼板をプレス加工する際には需要
家が加工の直前に高粘度のプレス油を塗油するのが通例
であった。しかし、塗油作業は作業性を低下させ、ま
た、作業者、作業床の油汚れ等の作業環境を悪化させる
等の問題があり、さらに、高度なプレス加工を行う場合
には、塗油しても加工時にワレやカジリが生じる問題等
があった。このような問題を解消するために、現在では
需要家が塗油せずに、鋼板の供給メーカーにおいて、潤
滑被膜層を形成させた鋼板が市販に供されている。この
鋼板上に形成される潤滑被膜層には、(1)1g/m2
程度の薄膜でも良好な潤滑性を示し、(2)耐ブロッキ
ング性(塗布後に被膜同士が粘着しない)、(3)脱膜
性(アルカリ液による脱膜が容易である)、(5)一時
防錆性(プレス加工後の脱膜工程までの防錆性が維持さ
れる。)に優れていることが要求される。これらの要件
特性を満たす技術として、特公昭51−3702号公
報、特公昭52−34704号公報、特公昭53−27
698号公報、特公昭53−37817号公報、特開昭
50−18502号公報、特開昭62−84193号公
報、特開昭63−8489号公報、特開平3−2039
96号公報等に数多くの技術が提案されている。 【0003】 【発明が解決しようとする課題】しかし、従来の潤滑被
膜層を有する鋼板は、通常の円筒プレス試験で評価され
る成形性について、優れた性能を示すものである。しか
し、近年、加工精度、加工レベルの高度化、加工形状の
多様化等により、厳しい条件でプレスする場合が増加
し、高面圧がかかる角筒やビード付き円筒金型によりプ
レス加工したところ、上記従来の鋼板は割れやカジリが
発生する問題があることがわかった。 【0004】そこで、本発明は、高面圧下における深絞
り性、耐カジリ性に優れた脱膜型潤滑鋼板を提供するこ
とを目的とする。 【0005】 【課題を解決するための手段】前記課題を解決するため
に、本発明者らが鋭意検討したところ、深絞り性および
耐カジリ性に大きく影響を及ぼす因子について種々検討
した結果、被膜の主成分である樹脂のTgと樹脂酸価が
最大の因子の一つであることがわかった。そこで、アク
リル系樹脂に、特定の混合潤滑剤を特定の割合で添加し
た潤滑性被膜を形成することによって、従来の脱膜性、
耐ブロッキング性等を維持しつつ、深絞り性、耐カジリ
性を向上させた潤滑鋼板を得ることができることを知見
し、本発明に到達した。 【0006】すなわち、本発明は、(a)Tgが0〜1
20℃、かつ酸価が30〜200mg−KOH/gであ
るアクリル系樹脂と、混合潤滑剤として(b)金属せっ
けん、ならびにリン酸またはモリブデン酸のZn、Ca
およびアンモニウム塩から選ばれる少なくとも1種を
(a)の固形分に対して1〜20wt%と、(c)融点
Tmが70≦Tm≦150℃であるポリエチレン系ワッ
クスを(a)の固形分に対して3〜20wt%とを含む
潤滑性被膜を有する、深絞り性および耐カジリ性に優れ
た脱膜型潤滑鋼板を提供するものである。 【0007】以下、本発明の脱膜型潤滑鋼板(以下、
「本発明の鋼板」という)について詳細に説明する。 【0008】本発明の鋼板が有する潤滑性被膜は、
(a)アクリル系樹脂を主成分とするものである。この
アクリル系樹脂は、アクリル酸、メタアクリル酸、マレ
イン酸、無水マレイン酸、イタコン酸等の不飽和カルボ
ン酸と、アクリル酸メチル、アクリル酸エチル、メタア
クリル酸メチル、メタアクリル酸エチル、スチレン等か
ら選ばれるモノマーと通常の方法、例えば、乳化重合ま
たは溶液重合法により、重合または共重合したものであ
る。これらの重合体または共重合体は、1種単独で使用
してもよいし、2種以上を組合わせて使用してもよい。 【0009】本発明において、この(a)アクリル系樹
脂は、Tg(ガラス転移温度)が0〜120℃、好まし
くは40〜90℃のものである。Tgが0℃未満のアク
リル系樹脂を用いると、潤滑性被膜が柔らかくなり、耐
カジリ性および耐ブロッキング性に劣り、Tgが120
℃を超えるアクリル系樹脂を用いると、深絞り性が低下
する。 【0010】また、この(a)アクリル系樹脂は、化成
処理の前工程でアルカリ脱膜させる際にカルボキシル基
とアルカリとの反応を利用するために、酸価が30〜2
00mg−KOH/g、好ましくは50〜100mg−
KOH/gのものである。酸価が30mg−KOH/g
未満であると、潤滑性被膜の脱膜性が劣り、200mg
−KOH/gを超えると防錆性が著しく低下する。 【0011】潤滑性被膜の(b)成分は、金属せっけ
ん、ならびにリン酸またはモリブデン酸のZn、Caも
しくはアンモニウム塩から選ばれる少なくとも1種であ
り、これらは1種単独でも2種以上を組み合わせても用
いられる。金属せっけんとしては、例えば、ラウリル
酸、パルミチン酸、ステアリン酸、オレイン酸等に代表
される高級脂肪酸と、カルシウム、バリウム等に代表さ
れるアルカリ土類金属との塩が挙げられる。この(b)
成分として、2種以上の混合成分からなるものを使用す
ると、耐カジリ性の改善効果が一層大きくなる。また、
リン酸、モリブデン酸のZn、Ca、アンモニウム塩
は、防錆効果も備えているため、これらを使用した場合
には防錆性も向上させることができる。 【0012】本発明において、潤滑性被膜における
(b)成分の含有量は、(a)の固形分に対して、1〜
20wt%、好ましくは5〜15wt%である。(b)
成分の含有量が1%未満では耐カジリ性の効果が認めら
れず、20wt%を超えると、潤滑性被膜の密着性が低
下し、深絞り性や耐カジリ性が低下する。 【0013】また、潤滑性被膜の(c)成分であるポリ
エチレン系ワックスは、融点Tmが、70≦Tm≦15
0℃、好ましくは100〜130℃のものである。これ
らのワックスは、1種単独でも2種以上を組合わせて用
いてもよい。ここで、プレス加工時は金型と鋼板の摩擦
により両者の板温は50〜100℃程度に上昇すると言
われている。そこで、この温度域で有効に作用するワッ
クスのTmについて検討した結果、70≦Tm≦150
℃ のワックスが好適であるとの結論に至った。Tmが
70℃未満のワックスでは、加工時にワックスが溶解し
てしまうため深絞り性が改善されず、また、溶解部が基
点となり耐カジリ性が低下する。150℃を超えるワッ
クスを用いると、プレス加工時にワックスの軟化が開始
せず深絞り性への効果が期待できない。 【0014】潤滑性被膜において、(c)ポリエチレン
系ワックスの含有量は、前記(a)アクリル系樹脂の固
形分に対して3〜20wt%、好ましくは5〜15wt
%である。(c)ポリエチレン系ワックスの含有量が3
wt%未満では、深絞り性が改善されず、20wt%を
超えると、塗膜の密着性が低下し、深絞り性や耐カジリ
性が低下する。 【0015】本発明において、前記の(a)、(b)お
よび(c)成分からなる潤滑剤はそのままでも使用でき
るが、鋼板に塗布して潤滑性被膜を形成するに際して、
分散性、塗料安定性の観点から水分散液の形状で使用す
ることが望ましい。水分散液として使用する場合には、
界面活性剤等を添加してもよい。 【0016】本発明の鋼板において、潤滑性被膜の乾燥
被膜量は各性能面から0.5〜5.0g/m2 であるこ
とが望ましい。 【0017】本発明の鋼板において、潤滑性被膜を形成
する鋼板素地は、特に制限されず、例えば、熱延酸洗鋼
板、冷延鋼板、各種亜鉛めっき鋼板等の表面処理鋼板等
を挙げることができる。 【0018】本発明の鋼板は、前記の(a)アクリル系
樹脂、(b)金属石けん、ならびにリン酸またはZn、
Caもしくはアンモニウム塩系潤滑剤および(c)ポリ
エチレン系ワックス、ならびに必要に応じて配合される
各種成分とを、特定の配合比で調製した樹脂混合物を、
ロール塗布、スプレー塗布、浸漬塗布、バーコーター塗
布等による方法で、鋼板に塗布し、通常、5〜20秒後
の到達板温が50〜150℃になる条件で乾燥させる方
法によって製造することができる。 【0019】 【作用】一般に、(a)アクリル系樹脂単独でも、潤滑
性を示すが、本発明の鋼板のごとく、加工時に高面圧が
かかる角筒絞りやビード付き円筒絞り等のプレス加工を
行う場合には、さらにレベルを向上させる必要があり
る。そこで、本発明においては、(b)金属せっけん、
ならびにリン酸またはモリブデン酸のZn、Ca、もし
くはアンモニウム塩から選ばれる少なくとも1種(以
下、「B群潤滑剤」という)と、(c)ポリエチレン系
ワックス(以下、「C群潤滑剤」という)とを組合わせ
た混合潤滑剤が使用される。通常、これらのB群潤滑剤
またはC群潤滑剤は、それぞれ単独で使用されることが
一般的である。この混合潤滑剤において、B群潤滑剤は
耐カジリ性への効果は大であるが深絞り性への効果は小
さく、C群潤滑剤は深絞り性への効果は大であるが耐カ
ジリ性への効果は小さい。そこで、本発明においては、
深絞り性と耐カジリ性を両立させるために両潤滑剤を含
む混合潤滑剤が使用される。 【0020】 【実施例】以下、本発明の実施例および比較例によって
本発明を具体的に説明する。 【0021】(実施例1〜24、比較例1〜17)各例
において、表面を脱脂した鋼板の両面に、表1に示す樹
脂および潤滑剤からなる塗料を、乾燥被膜重量で片面あ
たり1.5g/m2 になるように塗装し、10秒後の到
達板温が80℃になるように熱風乾燥機を用いて焼き付
けした。この処理板に防錆油(16.3CST/40
℃)を両面に塗油して、試験片を作成した。この試験片
について、下記の方法にしたがって、深絞り性、耐カジ
リ性、防錆性、脱膜性および耐ブロッキング性を評価し
た。結果を表2に示す。 【0022】(1)深絞り性、耐カジリ性 試験片を、エリクセンカップ絞り試験機を用いて絞り圧
を変えながら、角筒およびビード付き円筒にする絞り試
験に供し、常温での限界絞り圧、耐カジリ性を評価し
た。このときのプレス条件および評価基準は下記の通り
である。 (耐カジリ性評価基準) ◎:カジリなし ○:カジリ若干あり △:カジリやや多い ×:カジリ多い 【0023】(2)防錆性 温度50℃、湿度98%の条件下で湿潤試験を行い、赤
錆が5%発生するまでの時間で評価した。 【0024】(3)脱膜性 試験片に、濃度3%、液温40℃に調整した脱脂液(フ
ァインクリーナー4460(日本パーカーライジング
(株)製)を、10秒間スプレーして脱脂した。次に、
試験片を、3%硫酸銅水溶液に40秒浸漬し、Cuの置
換析出状態を観察し、下記の基準で脱膜性を評価した。 (脱膜性評価基準) ○:Cuが全面に析出 △:Cuが部分的に析出 ×:Cuが全く析出せず 【0025】(4)耐ブロッキング性 塗膜面同士を内側にして重ね合せた2枚の試験片を30
0kg・cmのトルクで締め付けた状態で、60℃の恒
温槽に6時間放置した。その後、重ねた試験片を引き剥
がし、引き剥がした時の粘着状況により、下記の基準で
耐ブロッキング性を評価した。 (耐ブロッキング性) ◎:粘着なし ○:若干粘着あり △:粘着あり ×:粘着大 【0026】 表1 使用した樹脂、添加剤 ─────────────────────────────────── 種 類 メーカー(商品名) ─────────────────────────────────── A アクリル樹脂 三菱レイヨン(株)製(ダイヤナール) 樹 脂 B 無水マレイン酸 三井東圧(株)製 C スチレン 三菱油化(株)製 ─────────────────────────────────── B 群 a パルミチン酸 和光純薬(株)製 b ステアリン酸 c ステアリン酸カルシウム d ステアリン酸バリウム e りん酸亜鉛 f りん酸カルシウム g モリブデン酸亜鉛 h モリブデン酸アンモニウム ─────────────────────────────────── C 群 i ポリエチレンワックス 三井石油化学工業(株) Tm:65℃ (三井ハイワックス) j ポリエチレンワックス 111 k ポリエチレンワックス 130 l ポリエチレンワックス 140 m ポリエチレンワックス 157 ─────────────────────────────────── 【0027】 【表1】 【0028】 【表2】 【0029】 【表3】 【0030】 【表4】【0031】 【発明の効果】本発明の脱膜型潤滑鋼板は、脱膜性、耐
ブロッキング性等を維持しつつ、深絞り性、耐カジリ性
に優れた鋼板である。
Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coated lubricated steel sheet, and more particularly, to a deep drawing property and an anti-galling property while maintaining the film removing property and the blocking resistance. The present invention relates to a strip-type lubricated steel sheet suitable as a steel sheet to be pressed, for example, a hot-rolled pickled steel sheet, a cold-rolled steel sheet, or various surface-treated steel sheets. [0002] Conventionally, when a steel sheet is pressed, it is customary for a customer to apply a high-viscosity press oil immediately before the processing. However, the lubrication work has problems such as deterioration of workability and deterioration of the working environment such as oil stains on workers and work floors. However, there were problems such as cracks and scabs during processing. In order to solve such a problem, steel plates provided with a lubricating film layer are now being marketed by steel plate suppliers without the need for oiling by customers. The lubricating coating layer formed on this steel plate has (1) 1 g / m 2
It shows good lubricity even with a thin film of a certain degree, (2) anti-blocking properties (the coatings do not stick to each other after application), (3) film-removing properties (easy to remove with alkaline solution), (5) temporary prevention It is required to be excellent in rust property (the rust prevention property until the film removal step after press working is maintained). Techniques satisfying these requirements are disclosed in JP-B-51-3702, JP-B-52-34704, and JP-B-53-27.
No. 698, JP-B-53-37817, JP-A-50-18502, JP-A-62-84193, JP-A-63-8489, JP-A-3-2039.
Numerous technologies have been proposed in Japanese Patent Application Publication No. 96-96 and the like. [0003] However, a conventional steel sheet having a lubricating coating layer exhibits excellent performance in terms of formability evaluated by a normal cylindrical press test. However, in recent years, due to the increase in processing accuracy, advanced processing level, diversification of processing shape, etc., the number of times of pressing under severe conditions has increased, and when pressed with a square cylinder with high surface pressure or a cylindrical mold with beads, It has been found that the above-mentioned conventional steel plate has a problem that cracks and galling occur. Accordingly, an object of the present invention is to provide a lubricating steel sheet having excellent drawability and galling resistance under high surface pressure. [0005] In order to solve the above-mentioned problems, the present inventors have conducted intensive studies. As a result, various studies have been made on factors which greatly affect the deep drawability and the galling resistance. It was found that the Tg and resin acid value of the resin, which is the main component, were one of the largest factors. Therefore, by forming a lubricating film in which a specific mixed lubricant is added at a specific ratio to an acrylic resin, the conventional film removal property,
The inventors have found that it is possible to obtain a lubricated steel sheet having improved deep drawability and galling resistance while maintaining blocking resistance and the like, and have reached the present invention. That is, according to the present invention, (a) Tg is 0 to 1
20 ° C. and an acrylic resin having an acid value of 30 to 200 mg-KOH / g; (b) metal soap as a mixed lubricant; and Zn or Ca of phosphoric acid or molybdic acid
And at least one selected from ammonium salts with respect to the solid content of (a) by 1 to 20 wt%, and (c) a polyethylene wax having a melting point Tm of 70 ≦ Tm ≦ 150 ° C. to a solid content of (a). An object of the present invention is to provide a delaminated lubricating steel sheet having a lubricating coating containing 3 to 20 wt% and having excellent deep drawability and galling resistance. [0007] Hereinafter, the delaminated lubricating steel sheet of the present invention (hereinafter, referred to as "the lubricating steel sheet"
The “steel plate of the present invention” will be described in detail. [0008] The lubricating coating of the steel sheet of the present invention comprises:
(A) An acrylic resin as a main component. This acrylic resin includes unsaturated carboxylic acids such as acrylic acid, methacrylic acid, maleic acid, maleic anhydride, itaconic acid, and methyl acrylate, ethyl acrylate, methyl methacrylate, ethyl methacrylate, styrene, etc. And polymerized or copolymerized by a usual method, for example, an emulsion polymerization or a solution polymerization method. These polymers or copolymers may be used alone or in a combination of two or more. In the present invention, the acrylic resin (a) has a Tg (glass transition temperature) of 0 to 120 ° C., preferably 40 to 90 ° C. When an acrylic resin having a Tg of less than 0 ° C. is used, the lubricating film becomes soft, is inferior in galling resistance and blocking resistance, and has a Tg of 120.
When an acrylic resin having a temperature of higher than ℃ is used, the deep drawability decreases. The acrylic resin (a) has an acid value of 30 to 2 in order to utilize a reaction between a carboxyl group and an alkali at the time of alkali film removal in a step prior to the chemical conversion treatment.
00 mg-KOH / g, preferably 50-100 mg-
It is of KOH / g. Acid value is 30mg-KOH / g
If it is less than 200 mg, the film removal property of the lubricating film is inferior and 200 mg
If it exceeds -KOH / g, the rust-preventive property is significantly reduced. The component (b) of the lubricating coating is at least one selected from the group consisting of metal soaps and Zn, Ca or ammonium salts of phosphoric acid or molybdic acid. These may be used alone or in combination of two or more. Is also used. Examples of the metal soap include salts of higher fatty acids represented by lauric acid, palmitic acid, stearic acid, oleic acid and the like, and alkaline earth metals represented by calcium, barium and the like. This (b)
When a mixture of two or more components is used, the effect of improving galling resistance is further enhanced. Also,
Since Zn, Ca, and ammonium salts of phosphoric acid and molybdic acid also have a rust-preventive effect, when they are used, rust-preventive properties can be improved. In the present invention, the content of the component (b) in the lubricating coating is 1 to 1 with respect to the solid content of (a).
20 wt%, preferably 5 to 15 wt%. (B)
If the content of the component is less than 1%, the effect of galling resistance is not recognized, and if it exceeds 20% by weight, the adhesion of the lubricating coating decreases, and the deep drawability and galling resistance decrease. The polyethylene wax as the component (c) of the lubricating coating has a melting point Tm of 70 ≦ Tm ≦ 15.
0 ° C., preferably 100 to 130 ° C. These waxes may be used alone or in combination of two or more. Here, it is said that during press working, the sheet temperature of both the mold rises to about 50 to 100 ° C. due to friction between the mold and the steel sheet. Then, as a result of examining the Tm of the wax effectively acting in this temperature range, 70 ≦ Tm ≦ 150
It has been concluded that wax at ℃ is preferred. When the wax has a Tm of less than 70 ° C., the wax is dissolved during processing, so that the deep drawability is not improved. In addition, the melting portion becomes a base point and the galling resistance is reduced. When a wax exceeding 150 ° C. is used, the softening of the wax does not start at the time of press working, and the effect on deep drawability cannot be expected. In the lubricating coating, the content of the polyethylene wax (c) is 3 to 20 wt%, preferably 5 to 15 wt%, based on the solid content of the acrylic resin (a).
%. (C) The content of the polyethylene wax is 3
If it is less than wt%, the deep drawability is not improved, and if it exceeds 20 wt%, the adhesion of the coating film is reduced, and the deep drawability and galling resistance are reduced. In the present invention, the lubricant comprising the components (a), (b) and (c) can be used as it is, but when it is applied to a steel sheet to form a lubricating film,
It is desirable to use in the form of an aqueous dispersion from the viewpoint of dispersibility and paint stability. When used as an aqueous dispersion,
A surfactant or the like may be added. In the steel sheet of the present invention, the dry coating amount of the lubricating coating is desirably 0.5 to 5.0 g / m 2 from the viewpoint of each performance. In the steel sheet of the present invention, the steel sheet base on which the lubricating film is formed is not particularly limited, and examples thereof include surface-treated steel sheets such as hot-rolled pickled steel sheets, cold-rolled steel sheets, and various types of galvanized steel sheets. it can. [0018] The steel sheet of the present invention comprises the above-mentioned (a) acrylic resin, (b) metallic soap, phosphoric acid or Zn,
A resin mixture prepared at a specific compounding ratio of a Ca or ammonium salt-based lubricant and (c) a polyethylene-based wax, and various components blended as required,
Roll coating, spray coating, dip coating, bar coater coating, etc., can be applied to a steel plate, and usually dried by drying under conditions where the reached plate temperature after 5 to 20 seconds becomes 50 to 150 ° C. it can. In general, (a) the acrylic resin alone shows lubricity, but like the steel sheet of the present invention, press working such as a square tube drawing or a cylindrical drawing with a bead which is subjected to a high surface pressure at the time of processing is performed. If so, the level needs to be further improved. Therefore, in the present invention, (b) metal soap,
And at least one selected from the group consisting of Zn, Ca, and ammonium salts of phosphoric acid or molybdic acid (hereinafter, referred to as "group B lubricant") and (c) polyethylene wax (hereinafter, referred to as "group C lubricant"). And a mixed lubricant is used. Usually, these group B lubricants or group C lubricants are generally used alone. In this mixed lubricant, the group B lubricant has a large effect on the galling resistance but a small effect on the deep drawing property, and the group C lubricant has a large effect on the deep drawing property but has a large effect on the galling resistance. The effect on is small. Therefore, in the present invention,
A mixed lubricant containing both lubricants is used to achieve both the deep drawability and the galling resistance. The present invention will be specifically described below with reference to examples and comparative examples of the present invention. (Examples 1 to 24, Comparative Examples 1 to 17) In each of the examples, a coating composed of a resin and a lubricant shown in Table 1 was applied to both surfaces of a steel plate whose surface was degreased at a dry film weight of 1. The coating was performed so as to be 5 g / m 2 , and baked using a hot air drier so that the reached plate temperature after 10 seconds became 80 ° C. Anti-rust oil (16.3 CST / 40)
C) on both sides to prepare a test piece. This test piece was evaluated for deep drawability, galling resistance, rust prevention, film removal and blocking resistance according to the following methods. Table 2 shows the results. (1) A deep drawing and anti-galling test piece was subjected to a drawing test to form a square tube and a beaded cylinder while changing the drawing pressure using an Erichsen cup drawing tester, and the limit drawing pressure at room temperature was obtained. And galling resistance were evaluated. The pressing conditions and evaluation criteria at this time are as follows. (Evaluation criteria for galling resistance) :: No galling ○: Slight galling △: Slightly large ×: Slightly galling Evaluation was made by the time until 5% of red rust was generated. (3) Degreasing property A degreasing solution (fine cleaner 4460 (manufactured by Nippon Parker Rising Co., Ltd.)) adjusted to a concentration of 3% and a liquid temperature of 40 ° C. was sprayed on the test piece for 10 seconds to degrease it. To
The test piece was immersed in a 3% aqueous solution of copper sulfate for 40 seconds, the state of substitutional precipitation of Cu was observed, and the film removal property was evaluated based on the following criteria. (Evaluation criteria for film removal properties) :: Cu is deposited on the entire surface △: Cu is partially deposited ×: No Cu is deposited at all (4) Blocking resistance 30 pieces of two test pieces
While being tightened with a torque of 0 kg · cm, it was left in a thermostat at 60 ° C. for 6 hours. Thereafter, the stacked test pieces were peeled off, and the anti-blocking property was evaluated according to the following criteria according to the adhesion state at the time of peeling. (Blocking resistance) :: No sticking :: Slightly sticky △: Sticky X: Large stickiness Table 1 Resins and additives used───────────────── ────────────────── Type Maker (product name) ───────────────────────── A Acrylic resin Mitsubishi Rayon Co., Ltd. (Dianal) Resin B Maleic anhydride Mitsui Toatsu Co., Ltd. C Styrene Mitsubishi Yuka Co., Ltd.群 Group B a Palmitic acid Wako Pure Chemical Industries, Ltd. b Stearic acid c Calcium stearate d Stearin Barium phosphate e zinc phosphate f calcium phosphate g zinc molybdate h ammonium molybdate群 Group C i Polyethylene wax Mitsui Petrochemical Industry Co., Ltd. Tm: 65 ° C (Mitsui High Wax) j Polyethylene wax 111 k Polyethylene wax 130 l polyethylene wax 140 m polyethylene wax 157─────────────────────────────────── ] [Table 2] [Table 3] [Table 4] The delaminated lubricating steel sheet of the present invention is a steel sheet which is excellent in deep drawability and galling resistance while maintaining the delamination property and blocking resistance.

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 FI B05D 7/24 303 B05D 7/24 303B 303E // B21D 22/20 B21D 22/20 E (72)発明者 成 瀬 義 弘 千葉県千葉市中央区川崎町1番地 川崎 製鉄株式会社技術研究所内 (56)参考文献 特開 昭53−75159(JP,A) 特開 昭63−83172(JP,A) 特開 平4−44840(JP,A) 特開 平7−292318(JP,A) (58)調査した分野(Int.Cl.7,DB名) B32B 15/08 B05D 1/00 - 7/26 C09D 1/00 - 10/00 C09D 101/00 - 201/10 ────────────────────────────────────────────────── ─── Continued on the front page (51) Int.Cl. 7 Identification symbol FI B05D 7/24 303 B05D 7/24 303B 303E // B21D 22/20 B21D 22/20 E (72) Inventor Yoshihiro Naruse Chiba 1 Kawasaki-cho, Chuo-ku, Chiba-shi, Japan Kawasaki Steel Research Institute Co., Ltd. (56) References JP-A-53-75159 (JP, A) JP-A-63-83172 (JP, A) JP-A-4-44840 ( JP, A) JP-A-7-292318 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) B32B 15/08 B05D 1/00-7/26 C09D 1/00-10 / 00 C09D 101/00-201/10

Claims (1)

(57)【特許請求の範囲】 【請求項1】(a)Tgが0〜120℃、かつ酸価が3
0〜200mg−KOH/gであるアクリル系樹脂と、
混合潤滑剤として(b)金属せっけん、ならびにリン酸
またはモリブデン酸のZn、Caおよびアンモニウム塩
から選ばれる少なくとも1種を(a)の固形分に対して
1〜20wt%と、(c)融点Tmが70≦Tm≦15
0℃であるポリエチレン系ワックスを(a)の固形分に
対して3〜20wt%とを含む潤滑性被膜を有する、深
絞り性および耐カジリ性に優れた脱膜型潤滑鋼板。
(57) Claims: (a) Tg is 0 to 120 ° C and acid value is 3
An acrylic resin of 0 to 200 mg-KOH / g;
(B) at least one selected from the group consisting of metallic soap and Zn, Ca and ammonium salts of phosphoric acid or molybdic acid as a mixed lubricant; Is 70 ≦ Tm ≦ 15
A stripped lubricated steel sheet excellent in deep drawability and galling resistance, having a lubricating coating containing 3 to 20 wt% of a polyethylene wax at 0 ° C. based on the solid content of (a).
JP31520095A 1995-12-04 1995-12-04 Stripped lubricated steel sheet with excellent deep drawability and galling resistance Expired - Fee Related JP3536489B2 (en)

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JP31520095A JP3536489B2 (en) 1995-12-04 1995-12-04 Stripped lubricated steel sheet with excellent deep drawability and galling resistance

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Application Number Priority Date Filing Date Title
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JP3536489B2 true JP3536489B2 (en) 2004-06-07

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Publication number Priority date Publication date Assignee Title
TWI226903B (en) * 1998-10-14 2005-01-21 Jfe Steel Corp Coating composition and lubricated metal sheets
JP6512204B2 (en) * 2015-12-04 2019-05-15 Jfeスチール株式会社 Lubricating paint for stainless steel plates and lubricated stainless steel plates
ES2923872T3 (en) 2015-12-04 2022-10-03 Jfe Steel Corp Lubricant coating for stainless steel plates and lubricated stainless steel plates
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