JP2696461B2 - Hard lubricated plated steel sheet with excellent pressability and sliding wear resistance - Google Patents
Hard lubricated plated steel sheet with excellent pressability and sliding wear resistanceInfo
- Publication number
- JP2696461B2 JP2696461B2 JP4238843A JP23884392A JP2696461B2 JP 2696461 B2 JP2696461 B2 JP 2696461B2 JP 4238843 A JP4238843 A JP 4238843A JP 23884392 A JP23884392 A JP 23884392A JP 2696461 B2 JP2696461 B2 JP 2696461B2
- Authority
- JP
- Japan
- Prior art keywords
- steel sheet
- film
- plated steel
- lubricant
- lubricating
- 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
Links
Description
【０００１】[0001]
【産業上の利用分野】本発明は浅い絞り加工、耐かじり
性および摺動特性に優れた非脱膜型の硬質潤滑表面処理
鋼板に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-delamination type hard lubricated surface-treated steel sheet which is excellent in shallow drawing, galling resistance and sliding characteristics.
【０００２】[0002]
【従来の技術】従来、加工後塗装されていたポスト塗装
製品に代わって、薄い被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被膜を
有し、その上に薄い機能性被膜を被覆したもので、溶接
が出来、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 Conventionally, a surface-treated steel sheet coated with a thin film has been used in place of a post-painted product which has been painted after processing. This steel sheet has a zinc-based plating film as a base and is coated with a thin functional film thereon, and can be welded and has good properties in adhesion workability and corrosion resistance.
【０００３】特開平３−３９４８５号公報には、亜鉛系
のめっき鋼板の上にクロメート被膜処理を行い、水性樹
脂にシリカとガラス転移点（Ｔｇ点）が４０℃以上のワ
ックスを分散した樹脂塗料をドライ膜厚で０．３〜３ｇ
／ｍ2 被覆したものが記載されている。また、特開平３
−２８３８０号公報には、電気亜鉛めっき鋼板の上にク
ロメート処理を行い、カルボキシル化したポリエチレン
系ディスパージョンとテフロン潤滑剤からなる塗料をド
ライ膜厚で０．５〜４．０ｇ／ｍ2 被覆して得られる潤
滑鋼板が記載されている。これらの表面処理鋼板はめっ
き、クロメート、有機被膜の複合効果によって潤滑性、
耐食性、溶接性、塗料密着性を与えるもので、生産性や
品質改良を目的として現在も活発に開発が進められてい
る。[0003] JP-A-3-39485 discloses a resin paint in which a chromate coating treatment is performed on a zinc-based plated steel sheet, and silica and a wax having a glass transition point (Tg point) of 40 ° C or more are dispersed in an aqueous resin. 0.3 to 3 g in dry film thickness
/ M 2 coating is described. In addition, Japanese Unexamined Patent Publication No.
JP-A-28380 discloses that a coating consisting of a carboxylated polyethylene-based dispersion and a Teflon lubricant is coated on a galvanized steel sheet in a dry film thickness of 0.5 to 4.0 g / m 2. A lubricated steel sheet obtained by the above method is described. These surface-treated steel sheets have lubricity,
It imparts corrosion resistance, weldability, and paint adhesion, and is still being actively developed for the purpose of improving productivity and quality.
【０００４】[0004]
【発明が解決しようとする課題】前述した従来技術は、
深絞り加工へ適用される潤滑被膜付き鋼板である。しか
しながら、潤滑鋼板が期待される潤滑特性としては、深
絞り以外に高速打ち抜き、折り曲げ、摺動による摩耗防
止などがある。たとえば家電製品のフレーム、シャーシ
ー部品は強度の関係から材料の板厚が厚く、寸法精度の
高い曲げ加工や打ち抜きと孔広げ加工を高速のクランク
プレスで連続的に行う部品が多い。高速加工による変形
および摩擦抵抗により板温が上昇して摩擦係数が高くな
る問題や、寸法精度を上げるためポンチ、ダイスの型Ｒ
が小さく、クリアランスも小さい状態で曲げるため被膜
が削られ易い問題がある。したがって、従来の有機樹脂
を主成分とする潤滑被膜ではプレスかすの発生が多い欠
点があった。また、家電部品には面と面が摺動面となる
部品たとえばＶＴＲのカセット摺動部品などがあり、数
十万回の摺動に耐える摺動性に優れた潤滑鋼板が要求さ
れている。従来の有機樹脂系の潤滑鋼板では摺動摩耗量
が大きく、削りかすが発生する欠点があった。The prior art described above is
This is a steel sheet with a lubricating film applied to deep drawing. However, lubricating properties expected from lubricated steel plates include, besides deep drawing, high-speed punching, bending, and prevention of wear due to sliding. For example, the frame and chassis parts of home appliances have a large thickness due to their strength, and many parts are subjected to high-precision bending, punching, and hole-expanding by a high-speed crank press. There is a problem that the plate temperature rises due to deformation and frictional resistance due to high-speed machining, and the friction coefficient becomes high.
However, there is a problem that the coating film is easily shaved because it is bent with a small clearance and a small clearance. Therefore, the conventional lubricating coating containing an organic resin as a main component has a drawback in that much press residue is generated. In addition, there are household electrical appliance parts that have sliding surfaces, such as cassette sliding parts for VTRs, and lubricating steel sheets with excellent slidability that can withstand hundreds of thousands of sliding operations are required. The conventional organic resin-based lubricating steel sheet has a drawback that the amount of sliding wear is large and shavings are generated.
【０００５】これらの問題を解決するためには、幅広い
温度で激しいしごき加工に耐え、長期的に低い動摩擦係
数を供給できる硬質の被膜が必要であり、従来技術では
解決できなかった。[0005] In order to solve these problems, a hard coating that can withstand severe ironing at a wide range of temperatures and can supply a low coefficient of dynamic friction over a long period of time is required, and it cannot be solved by the prior art.
【０００６】[0006]
【課題を解決するための手段】本発明の要旨は、めっき
鋼板の表面に第１層として化成処理被膜、第２層として
無機高分子化合物１００重量部に対して２〜５０重量部
の固形潤滑剤、１〜２０重量部の水性樹脂で構成される
潤滑被膜を膜厚として０．１〜５．０μｍ有するプレス
性および耐摺動摩耗性に優れた硬質潤滑めっき鋼板であ
る。The gist of the present invention is to provide a chemical conversion coating as a first layer on the surface of a plated steel sheet, and a solid lubricant of 2 to 50 parts by weight based on 100 parts by weight of an inorganic polymer compound as a second layer. It is a hard lubricated plated steel sheet having excellent pressability and sliding wear resistance, having a lubricating coating composed of 1 to 20 parts by weight of an aqueous resin in a thickness of 0.1 to 5.0 μm.
【０００７】[0007]
【作用】本発明が対象とするめっき鋼板は、亜鉛めっき
鋼板、亜鉛合金めっき鋼板、アルミニウムおよびアルミ
ニウム合金めっき鋼板を含有し、これら鋼板は、電気め
っき、溶融めっき、蒸着めっき、分散めっき、及び重ね
めっきのいずれかの手法を用いて製造したものである。
めっき組成としては、耐食性に優れた硬質の亜鉛合金め
っきが望ましい。めっき量は特に限定する必要がない
が、本発明では５〜１００ｇ／ｍ２が望ましい。冷延鋼
板に上記方法でめっきを行った後、化成処理被膜を形成
させる。化成処理被膜としてはクロメート被膜、りん酸
塩被膜、陽極酸化被膜を適用することができるが、クロ
メート被膜が望ましい。以下、クロメート被膜について
述べる。The coated steel sheet to which the present invention is applied is galvanized.
Steel sheet, zinc alloy coated steel sheet, aluminum and aluminum
Containing aluminum alloy-plated steel sheets.
Plating, hot-dip plating, vapor deposition plating, dispersion plating, and stacking
It was manufactured using any of the plating techniques .
As the plating composition, hard zinc alloy plating excellent in corrosion resistance is desirable. The plating amount is not particularly limited, but is preferably 5 to 100 g / m 2 in the present invention. After plating on the cold-rolled steel sheet by the above method, a chemical conversion coating is formed. As the chemical conversion coating, a chromate coating, a phosphate coating, and an anodic oxide coating can be applied, and a chromate coating is preferable. Hereinafter, the chromate film will be described.
【０００８】クロメート被膜付着量はＣｒ換算で５〜１
００ｍｇ／ｍ2 が好ましい。クロメート被膜の種類とし
ては、電解クロメート、エッチングクロメート、塗布ク
ロメートのいずれも適用できるが、水性塗料を塗装する
時点でクロメート被膜が溶解しにくく、且つ板温の低い
電解もしくはエッチングクロメートが望ましい。Ｃｒ付
着量が５ｍｇ／ｍ2 未満では耐食性が得られにくく、ま
た、Ｃｒが１００ｍｇ／ｍ2 超ではクロメート自身の凝
集破壊が生じ、密着性が得られない。The amount of the chromate film adhered is 5 to 1 in terms of Cr.
00 mg / m 2 is preferred. As the type of the chromate film, any of an electrolytic chromate, an etching chromate, and a coating chromate can be applied. However, it is preferable that the chromate film hardly dissolves when the water-based paint is applied, and that the electroplating or the etching chromate has a low plate temperature. If the amount of Cr attached is less than 5 mg / m 2, it is difficult to obtain corrosion resistance, and if the amount of Cr exceeds 100 mg / m 2 , the chromate itself undergoes cohesive failure and adhesion cannot be obtained.
【０００９】潤滑被膜について、以下詳細に説明する。The lubricating coating will be described in detail below.
【００１０】図１および図２にプレス加工形態と潤滑被
膜に必要な特性の関係を図示した。プレス加工には大別
して深絞り加工と、殆どしごき曲げ加工に近い成形との
２つがある。図１は深絞り用に必要な被膜特性を示した
もので、低い動摩擦係数と厚い膜厚および伸びやすい被
膜が必要である。これに対して摺動摩耗性、しごきを伴
う曲げ等の加工には、図２に示したように動摩擦係数が
低く、固く薄い被膜が有効である。FIGS. 1 and 2 show the relationship between the form of press working and the characteristics required for a lubricating film. There are two types of press working, deep drawing and forming, which is almost an iron bending process. FIG. 1 shows the characteristics of a film required for deep drawing. A low coefficient of dynamic friction, a thick film, and a film easy to elongate are required. On the other hand, a hard and thin film having a low dynamic friction coefficient as shown in FIG. 2 is effective for processing such as sliding wear and bending with ironing.
【００１１】本発明は耐かじり性や耐摺動摩耗性、打ち
抜き性、曲げ加工に関係する潤滑性に優れ、且つ表面特
性（耐食性、塗料密着性）に優れた図２に示した特性の
潤滑めっき鋼板を提供する。伸び率が大きい従来の潤滑
被膜にワックスを適用することは公知であるが、樹脂を
主成分とする被膜であるため、しごき加工や打ち抜きに
は潤滑被膜が削り落されプレスかすが発生する問題や、
加工時の温度上昇により摩擦係数がアップする問題があ
り、本発明が目的とする潤滑特性が得られない。そこ
で、本発明は従来の有機樹脂に代えて、無機高分子を主
成分とする硬質の潤滑被膜を採用する。すなわち、無機
高分子化合物と潤滑剤および水性樹脂で構成される膜厚
が０．１〜５．０μｍの被膜を被覆する。The present invention has excellent lubrication properties related to galling resistance, sliding wear resistance, punching properties, bending work, and surface properties (corrosion resistance, paint adhesion) and the properties shown in FIG. Provide plated steel sheets. It is known that a wax is applied to a conventional lubricating film having a large elongation, but since it is a film containing a resin as a main component, a problem that a lubricating film is scraped off by ironing or punching and press residue is generated,
There is a problem that the coefficient of friction increases due to an increase in temperature during processing, and the lubricating properties intended by the present invention cannot be obtained. Therefore, the present invention employs a hard lubricating coating mainly composed of an inorganic polymer instead of the conventional organic resin. That is, a coating having a thickness of 0.1 to 5.0 [mu] m composed of an inorganic polymer compound, a lubricant and an aqueous resin is coated.
【００１２】潤滑被膜の膜厚は０．１〜５．０μｍとす
る。その理由は、０．１μｍ未満では目的とする実用的
な潤滑特性が得られないためであり、５．０μｍ超の厚
膜では無機高分子のため被膜が固く、凝集破壊し、加工
時に剥離しやすくなるためである。潤滑性、密着加工性
の観点から最適な膜厚は０．５〜２．０μｍである。The thickness of the lubricating film is 0.1-5.0 μm. The reason is that if the thickness is less than 0.1 μm, the desired practical lubricating properties cannot be obtained. If the thickness is more than 5.0 μm, the coating is hard due to the inorganic polymer, which causes cohesive failure and peels off during processing. This is because it becomes easier. The optimum film thickness is from 0.5 to 2.0 μm from the viewpoint of lubricity and adhesion workability.
【００１３】以下、各成分について詳述する。Hereinafter, each component will be described in detail.
【００１４】組成比は無機高分子化合物１００に対して
潤滑剤を２〜５０重量部の範囲とする。２重量部未満で
は潤滑性能が不十分であり、５０重量部超では被膜の硬
度と密着加工性が低下し、目的とする潤滑特性が得られ
ず、被覆方法にも問題が生ずるためである。好ましい範
囲は、無機高分子化合物１００に対して５〜３０重量部
である。The composition ratio is such that the lubricant is in the range of 2 to 50 parts by weight with respect to the inorganic polymer compound 100. If the amount is less than 2 parts by weight, the lubricating performance is insufficient, and if the amount is more than 50 parts by weight, the hardness and adhesion workability of the coating film are reduced, and the desired lubricating properties cannot be obtained, thus causing a problem in the coating method. A preferred range is 5 to 30 parts by weight based on 100 of the inorganic polymer compound.
【００１５】無機高分子はケイ酸アルカリ金属塩、たと
えばケイ酸ナトリウム、ケイ酸リチウム、ケイ酸カリウ
ム、ケイ酸ゾル、縮合りん酸塩、重りん酸アルミニウ
ム、有機ケイ酸化合物等から選択した化合物である。こ
れらの化合物に、必要によりりん酸、硼酸、クロム酸、
アルミン酸塩を添加剤として加える。The inorganic polymer is a compound selected from alkali metal silicates, for example, sodium silicate, lithium silicate, potassium silicate, silicate sol, condensed phosphate, aluminum biphosphate, organic silicate compounds and the like. is there. If necessary, phosphoric acid, boric acid, chromic acid,
Aluminate is added as an additive.
【００１６】潤滑剤としては、親水性のカルボキシル
基、水酸基を付与した以下の潤滑剤を乳化重合したエマ
ルジョンを用いる。具体的には低密度ポリエチレン（密
度０．９〜０．９５、軟化温度９０〜１２０℃）、高密
度ポリエチレン（密度０．９５〜１．２、軟化温度１０
０〜１３０℃）、ポリプロピレン（密度０．９５〜１．
２、軟化温度１５０〜１９０℃）等のポリオレフィン系
ワックス、テフロン系潤滑剤（密度１．０〜１．２、軟
化温度３００〜４００℃）が望ましい。これらの潤滑剤
は目的に合わせて選択するが、とくに以下述べる平均粒
径が３μｍ以下、好ましくは１μｍ以下の細かい球形の
ポリオレフィンワックスディスパージョンが最も良好な
潤滑性能を発揮する。As the lubricant, an emulsion obtained by emulsion polymerization of the following lubricant having hydrophilic carboxyl groups and hydroxyl groups is used. Specifically, low-density polyethylene (density 0.9 to 0.95, softening temperature 90 to 120 ° C.), high-density polyethylene (density 0.95 to 1.2, softening temperature 10
0-130 ° C), polypropylene (density 0.95-1.
2, a polyolefin-based wax such as a softening temperature of 150 to 190 ° C., and a Teflon-based lubricant (density of 1.0 to 1.2, softening temperature of 300 to 400 ° C.) are desirable. These lubricants are selected according to the purpose. In particular, a fine spherical polyolefin wax dispersion having an average particle diameter of 3 μm or less, and preferably 1 μm or less, exhibits the best lubrication performance.
【００１７】ポリエチレン、ポリプロピレンディスパー
ジョンは、乳化剤濃度を極力低い５％以下、好ましくは
乳化剤を用いることなく水性化したものである。すなわ
ち、実質的に極性基を持たない分子量１０００〜４００
０の基材ポリオレフィンとエチレン系不飽和カルボン酸
もしくはその無水物、またはカルボキシル基含有誘導体
を結合成分として含む極性基を有する望ましくは酸価が
１０〜１５０で分子量が１０００〜４０００の変性ポリ
オレフィンを、融解混合の溶融状態から水または水溶液
に分散させて得られる真球に近い形状で融点が高い潤滑
剤のディスパージョンである。融解混合後のポリオレフ
ィンワックスの酸価は１〜２０の範囲が好ましい。The polyethylene and polypropylene dispersions are those in which the concentration of the emulsifier is as low as 5% or less, preferably aqueous without using an emulsifier. That is, a molecular weight of 1000 to 400 having substantially no polar group
A modified polyolefin having a polar group containing a base polyolefin of 0 and an ethylenically unsaturated carboxylic acid or an anhydride thereof, or a carboxyl group-containing derivative as a binding component, preferably having an acid value of 10 to 150 and a molecular weight of 1000 to 4000, This is a dispersion of a lubricant having a shape close to a true sphere and having a high melting point, which is obtained by dispersing in a water or aqueous solution from the molten state of melt mixing. The acid value of the polyolefin wax after melt mixing is preferably in the range of 1 to 20.
【００１８】さらに、本発明は水性樹脂を少量添加して
用いる。水性樹脂の割合は、無機高分子化合物１００重
量部に対して１〜２０重量部である。水性樹脂２０重量
部超では柔らかい樹脂の悪影響が出て特性が劣化する。
好ましい範囲は１〜１０重量部である。本発明に用いる
水性樹脂はオレフィンアクリル樹脂、アクリル共重合樹
脂、エポキシ樹脂、ウレタンエポキシ樹脂、ポリエステ
ル樹脂、オレフィンアイオノマー樹脂、酢酸ビニル樹脂
である。特にオレフィンアクリル樹脂、ウレタンエポキ
シ樹脂、ポリエステル樹脂が好ましい。必要によりメラ
ミン、アミン等の架橋剤やシランカップリング剤、顔料
等を加えることが出来る。Further, in the present invention, a small amount of an aqueous resin is used. The ratio of the aqueous resin is 1 to 20 parts by weight based on 100 parts by weight of the inorganic polymer compound. If the amount of the aqueous resin is more than 20 parts by weight, the properties of the resin deteriorate due to the adverse effect of the soft resin.
The preferred range is 1 to 10 parts by weight. The aqueous resin used in the present invention is an olefin acrylic resin, an acrylic copolymer resin, an epoxy resin, a urethane epoxy resin, a polyester resin, an olefin ionomer resin, and a vinyl acetate resin. Particularly, olefin acrylic resin, urethane epoxy resin, and polyester resin are preferable. If necessary, a crosslinking agent such as melamine or amine, a silane coupling agent, a pigment, and the like can be added.
【００１９】これらの各成分で潤滑被膜が構成される
が、得られる被膜は塗布後の焼付硬化過程で層分離が生
じ、潤滑剤の一部が表面に濃化した構造になっている。These components constitute a lubricating film. The resulting film has a structure in which layer separation occurs during the baking and hardening process after application, and a portion of the lubricant is concentrated on the surface.
【００２０】本発明の潤滑めっき鋼板は、めっきされた
鋼板の表面に既存のクロメート処理を行った後、潤滑塗
料をロールコーター、ナイフコーター、スプレー、エア
ーナイフ、スクイズロール等で塗布し、ただちに電気
炉、ガス炉、熱風、赤外線炉等の単体もしくは組み合わ
せた設備で到達板温９０〜２００℃に焼付硬化し、エア
ー、水、ロール等で冷却して製造する。付着量は薄膜の
測定に適したβ線膜厚計や、あらかじめ膜厚と被膜中の
特定元素、たとえばＳｉとの分析値の関係を求めておき
蛍光Ｘ線等の設備で連続的に測定して制御する。焼付板
温は、炉の出側に板温計をセットして到達板温で制御す
る。潤滑塗料は上述した無機高分子化合物と潤滑剤をデ
ィスパー、ボールミル、ホモミキサー、ロールミル等で
分散して製造する。The lubricated plated steel sheet of the present invention is prepared by subjecting the surface of the plated steel sheet to an existing chromate treatment, and then applying a lubricating paint using a roll coater, knife coater, spray, air knife, squeeze roll, etc. It is manufactured by baking and hardening to a reached plate temperature of 90 to 200 ° C. in a single or combined equipment such as a furnace, a gas furnace, hot air, an infrared furnace, etc., and cooling it with air, water, rolls or the like. The amount of adhesion is measured continuously with a β-ray film thickness meter suitable for thin film measurement, or the relationship between the film thickness and the analysis value of a specific element in the film, for example, Si, is measured in advance using fluorescent X-ray equipment. Control. The baking plate temperature is controlled by the reached plate temperature by setting a plate thermometer on the outlet side of the furnace. The lubricating paint is produced by dispersing the above-mentioned inorganic polymer compound and lubricant with a disper, a ball mill, a homomixer, a roll mill or the like.
【００２１】[0021]
【実施例】以下、実施例を挙げて本発明を説明する。The present invention will be described below with reference to examples.
【００２２】実施例は、特に記載がないときは以下の条
件とした。In the examples, the following conditions were used unless otherwise specified.
【００２３】１）実施例の記号と内容1) Symbols and contents of the embodiment
【００２４】無機高分子化合物 Ａ：リチウムシリケート Ｂ：ケイ酸アミン Ｃ：シリカゾル Ｄ：重りん酸アルミニウム Ｅ：トリポリりん酸ナトリウムInorganic polymer compound A: lithium silicate B: amine silicate C: silica sol D: aluminum biphosphate E: sodium tripolyphosphate
【００２５】固形潤滑剤 Ｊ：低密度ポリエチレン（密度０．９２、粒径０．６） Ｋ：低密度ポリエチレン（密度０．９２、粒径２．０） Ｌ：高密度ポリエチレン（密度０．９６、粒径１．５） Ｍ：ポリプロピレン （密度０．９５、粒径２．０） Ｎ：テトラフルオロエチレン（密度１．２、粒径０．
５）Solid lubricant J: Low density polyethylene (density 0.92, particle size 0.6) K: Low density polyethylene (density 0.92, particle size 2.0) L: High density polyethylene (density 0.96 M: polypropylene (density 0.95, particle size 2.0) N: tetrafluoroethylene (density 1.2, particle size 0.1)
5)
【００２６】水性樹脂 Ｐ：オレフィンアクリル酸エマルジョン（アンモニア中
和） Ｑ：ウレタンエポキシエマルジョン（アンモニア中和） Ｒ：ポリエステルエマルジョン（アンモニア中和）Aqueous resin P: Olefin acrylic acid emulsion (neutralized with ammonia) Q: Urethane epoxy emulsion (neutralized with ammonia) R: Polyester emulsion (neutralized with ammonia)
【００２７】尚、浴成分は不揮発分としての濃度比であ
る。The bath component is a concentration ratio as a nonvolatile component.
【００２８】２）評価項目と方法2) Evaluation items and methods
【００２９】（１）動摩擦係数 荷重を５０ｇかけた１０ｍｍ半球の鋼を試験片の表面を
６０ｃｍ／分の一定速度で移動させ、その力をロードセ
ルで測定した。その力Ｆと荷重Ｗとの比Ｆ／Ｗを計算
し、動摩擦係数とした。また、市販の静摩擦係数測定機
で静摩擦係数を測定した。(1) Coefficient of Dynamic Friction A 10 mm hemisphere steel to which a load of 50 g was applied was moved on the surface of the test piece at a constant speed of 60 cm / min, and the force was measured by a load cell. The ratio F / W between the force F and the load W was calculated and defined as the dynamic friction coefficient. In addition, the static friction coefficient was measured with a commercially available static friction coefficient measuring device.
【００３０】（２）絞り性評価 ５０ｔ角筒クランクプレスで絞り深さ３０ｍｍの絞り加
工を行い、加工部のかじりを目視評価し、評点で示し
た。(2) Evaluation of Drawability Drawdown was performed at a draw depth of 30 mm using a 50 t square cylinder crank press, and the galling of the processed portion was visually evaluated and indicated by a score.
【００３１】かじり発生量評点 １点（多い） ２点（少し発生） ３点（僅かに認む）
４点（認められない）Evaluation of the amount of galling 1 point (many) 2 points (slightly generated) 3 points (slightly recognized)
4 points (not accepted)
【００３２】（３）摺動摩耗性 ビデオテープのケースを１ｃｍ2 切取り、エッジを丸め
た後、６００ｇの荷重で２０回往復／分のサイクルで試
料表面を往復摺動させ、２００回ごとに観察し、深い傷
が入った時点の往復回数で示した。(3) Sliding Abrasion The video tape case was cut out by 1 cm 2 , the edge was rounded, and the sample surface was slid back and forth at a cycle of 20 reciprocations / min with a load of 600 g, and observed every 200 times. The number of reciprocations at the time of deep scratching was shown.
【００３３】（４）膜厚 表面に金を蒸着した試料を樹脂に垂直に埋込んだ後、研
磨した断面を顕微鏡観察し、膜厚とした。(4) Film Thickness A sample having gold deposited on its surface was vertically embedded in resin, and the polished cross section was observed under a microscope to determine the film thickness.
【００３４】（５）耐食性 ＪＩＳＺ２３７１規定の塩水噴霧試験で、５００時間後
の白錆発生％で評価した。(5) Corrosion resistance In a salt spray test specified in JISZ2371, evaluation was made based on the percentage of white rust generated after 500 hours.
【００３５】[0035]
【実施例１】めっき量２０ｇ／ｍ2 の電気亜鉛めっき鋼
板（板厚０．８ｍｍ）の表面に、クロム酸／硫酸＝３０
／０．３ｇ／ｌ浴中で電流密度１０Ａ／ｄｍ2 、２秒間
陰極電解した後、水洗してＣｒ付着量３０ｍｇ／ｍ2 の
クロメート被膜を施し、潤滑塗料をロールコーターにて
膜厚１μｍ狙いで塗布したのち、２秒以内にガス直下炉
に入れて５秒で板温１５０℃に焼付け、水冷して潤滑め
っき鋼板を作成した。記号：Ａ、固形分：１００ｇ、記
号：Ｐ、固形分：５ｇに粒径０．６μｍの記号Ｊの量を
変化させた潤滑塗料を用いた。EXAMPLE 1 Chromic acid / sulfuric acid = 30 was applied to the surface of an electrogalvanized steel sheet (plate thickness 0.8 mm) having a plating amount of 20 g / m 2.
After performing cathodic electrolysis for 2 seconds at a current density of 10 A / dm 2 in a /0.3 g / l bath, washing with water was performed to form a chromate film with a Cr adhesion amount of 30 mg / m 2 , and the lubricating paint was aimed at a film thickness of 1 μm using a roll coater. , And placed in a furnace directly under a gas within 2 seconds, baked to a sheet temperature of 150 ° C in 5 seconds, and cooled with water to prepare a lubricated plated steel sheet. Symbol: A, solid content: 100 g, symbol: P, solid content: 5 g, and a lubricating paint in which the amount of symbol J having a particle diameter of 0.6 μm was changed.
【００３６】得られた潤滑めっき鋼板について動摩擦係
数、絞り性を測定した。摩擦係数を図４に示した。動摩
擦係数は潤滑剤の濃度が２ｇ付近から急速に低下し、約
５ｇで低位安定化する。実質的に潤滑剤は最低２ｇ、好
ましくは５ｇ必要である。静摩擦係数は潤滑剤の濃度に
比例してゆるやかに低下し、潤滑剤濃度２０ｇで低位安
定化する。The coefficient of kinetic friction and drawability of the obtained lubricated plated steel sheet were measured. The coefficient of friction is shown in FIG. The coefficient of kinetic friction rapidly decreases from around 2 g of the lubricant concentration and stabilizes at a low level at about 5 g. Substantially 2 g, preferably 5 g of lubricant is required. The coefficient of static friction gradually decreases in proportion to the concentration of the lubricant, and is stabilized at a low level at a lubricant concentration of 20 g.
【００３７】図４の動摩擦係数値の下に絞り性を評点で
示した。動摩擦係数が低いほど優れた絞り性を得た。こ
れは、表層部への潤滑剤の濃化及び供給に適正な潤滑剤
の濃度があることを意味している。The squeezability is shown below the dynamic friction coefficient value in FIG. The lower the dynamic friction coefficient, the better the drawability. This means that there is an appropriate lubricant concentration for thickening and supplying the lubricant to the surface layer.
【００３８】[0038]
【実施例２】無機高分子としてアミンシリケート１００
ｇ、ウレタンエポキシ樹脂５ｇに潤滑剤Ｊを１５ｇ加え
た塗料を膜厚０．１から５．０μｍまで変化させて動摩
擦係数、摺動摩耗性およびプレス絞り性を評価した。結
果を表１に示した。Example 2 Amine silicate 100 as inorganic polymer
g, a coating material obtained by adding 15 g of lubricant J to 5 g of urethane epoxy resin was changed from 0.1 to 5.0 μm in film thickness, and dynamic friction coefficient, sliding wear property and press drawability were evaluated. The results are shown in Table 1.
【００３９】[0039]
【表１】 [Table 1]
【００４０】表１中の２−１〜２−５は潤滑剤を含む本
発明例で、動摩擦係数は０．０５と低い。摺動摩耗性は
膜厚２〜５μｍが２〜３万回以上の耐摩耗性、プレス性
では１〜３μｍが満点で、膜厚５μｍ以上では少しプレ
スかすが付着した。膜厚０．１μｍ以下ではかじりが発
生した。比較例の潤滑剤を含まない２−６は摩擦係数が
高く、摺動摩耗性、プレス性も劣っていた。2-1 to 2-5 in Table 1 are examples of the present invention containing a lubricant, and have a low dynamic friction coefficient of 0.05. The sliding abrasion was abrasion resistance when the film thickness was 2 to 5 μm and was 20,000 to 30,000 times or more. The pressability was full when the film thickness was 1 to 3 μm. When the film thickness was 0.1 μm or less, galling occurred. In Comparative Example 2-6 containing no lubricant, the coefficient of friction was high, and the sliding wear and pressability were poor.
【００４１】[0041]
【実施例３】無機高分子としてアミンシリケート１００
ｇ、ポリエステル樹脂１〜２０ｇに潤滑剤Ｊを１５ｇ加
えた塗料を膜厚１μｍ塗装し、板温１５０℃に焼き付け
た。動摩擦係数、摺動摩耗性およびプレス絞り性を評価
した。結果を表２に示した。Example 3 Amine silicate 100 as inorganic polymer
g, a paint obtained by adding 15 g of lubricant J to 1 to 20 g of polyester resin was applied to a thickness of 1 μm, and baked at a plate temperature of 150 ° C. The coefficient of kinetic friction, sliding wear and press drawability were evaluated. The results are shown in Table 2.
【００４２】[0042]
【表２】 [Table 2]
【００４３】表２中の３−１〜３−５は有機高分子と潤
滑剤を含む本発明例で、動摩擦係数は０．０５と低く、
摺動摩耗性は優れている。プレス性は、有機高分子のな
い比較例はかじりがひどく、有機高分子濃度の低い３−
１および３−２はかじりが少し認められた。３−３〜３
−５は優れたプレス性を示した。3-1 to 3-5 in Table 2 are examples of the present invention containing an organic polymer and a lubricant, and have a low dynamic friction coefficient of 0.05.
The sliding wear property is excellent. As for the pressability, the comparative example having no organic polymer was severely galling and the organic polymer concentration was low.
Galling was slightly observed in 1 and 3-2. 3-3-3
-5 showed excellent pressability.
【００４４】[0044]
【実施例４】実施例２の２−３の条件でクロメート被膜
のＣｒ付着量を５〜１００ｍｇ／ｍ2 に変化させた結果
を表３に示した。Example 4 Table 3 shows the results obtained by changing the amount of Cr adhering to the chromate film to 5 to 100 mg / m 2 under the conditions 2-3 in Example 2.
【００４５】[0045]
【表３】 [Table 3]
【００４６】表３中の４−１〜４−３は潤滑剤を含む本
発明例で、動摩擦係数は０．０５と低い。また、摺動摩
耗性は３万回以上、プレス性も良好であった。４−４は
一部剥離が生じた。比較例のクロメートなしの４−５は
付着力が弱く剥離するため、摺動摩耗性、プレス性が劣
っていた。4-1 to 4-3 in Table 3 are examples of the present invention containing a lubricant, and have a low dynamic friction coefficient of 0.05. Further, the sliding wear property was 30,000 times or more, and the press property was also good. 4-4 partially peeled off. In Comparative Example 4-5 without chromate, the adhesive force was weak and peeled off, so that the sliding abrasion and pressability were inferior.
【００４７】[0047]
【実施例５】電気亜鉛めっき鋼板（めっき量２０ｇ／ｍ
2 ）の表面にＣｒ付着量５０ｍｇ／ｍ2 狙いでエッチン
グクロメート処理後水洗し、表４に示す潤滑塗料をロー
ルコーターで膜厚１μｍ狙いで塗布し、板温１５０℃で
焼付け、冷却して潤滑めっき鋼板を作成した。評価は実
施例１に準じて行った。結果を表４に示す。Embodiment 5 Electrogalvanized steel sheet (coating amount: 20 g / m
2 ) Etching chromate treatment on the surface of 2 ) with the aim of 50 mg / m 2 of Cr adhesion, washing with water, applying a lubricating paint shown in Table 4 with a roll coater to a film thickness of 1 μm, baking at a plate temperature of 150 ° C, cooling and lubricating A plated steel sheet was created. The evaluation was performed according to Example 1. Table 4 shows the results.
【００４８】[0048]
【表４】 [Table 4]
【００４９】表４中の５−１〜５−６は各種無機高分子
と有機高分子の液に潤滑剤を組み合わせた潤滑塗料を被
覆した本発明例である。いずれも低い摩擦係数を示し、
摺動摩耗性、プレス性を示した。５−６は他に比べ少し
劣る傾向を示したが、これは潤滑剤の特性によるもので
ある。In Table 4, 5-1 to 5-6 are examples of the present invention in which a liquid of various inorganic polymers and organic polymers is coated with a lubricating paint in which a lubricant is combined. Both show a low coefficient of friction,
It showed sliding wear and pressability. 5-6 tended to be slightly inferior to the others, but this was due to the properties of the lubricant.
【００５０】[0050]
【発明の効果】本発明によれば、プレス油を省略出来る
ことから脱脂工程を省略でき、脱脂溶剤による環境破壊
が無くなり、職場の環境が改善される。さらに、そのま
ま耐食性被膜として使用できることから塗装が省略で
き、低コストで高品質の性能が得られる。According to the present invention, since the press oil can be omitted, the degreasing step can be omitted, the environmental destruction by the degreasing solvent is eliminated, and the workplace environment is improved. Furthermore, since it can be used as it is as a corrosion resistant film, painting can be omitted, and high quality performance can be obtained at low cost.
【図１】潤滑被膜の潤滑性と被膜設計の関係を示す図で
ある。FIG. 1 is a diagram showing a relationship between lubricity of a lubricating film and film design.
【図２】潤滑被膜の潤滑性と被膜設計の関係を示す図で
ある。FIG. 2 is a diagram showing a relationship between lubricity of a lubricating film and film design.
【図３】本発明の潤滑めっき鋼板の被膜構成を示す図で
ある。FIG. 3 is a view showing a film configuration of a lubricated plated steel sheet of the present invention.
【図４】潤滑剤の濃度と動摩擦係数、静摩擦係数および
プレス性の関係を示す図である。FIG. 4 is a diagram showing the relationship between the concentration of a lubricant, the dynamic friction coefficient, the static friction coefficient, and the pressability.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭61−60886（ＪＰ，Ａ) 特開 平１−201488（ＪＰ，Ａ) 特開 昭60−103185（ＪＰ，Ａ) 特開 昭63−153295（ＪＰ，Ａ) 特開 平３−162598（ＪＰ，Ａ) 特開 平２−162035（ＪＰ，Ａ) 丸山清、毛利秀明、共著「機能性めっ き」、初版第２刷（昭61−１−20）, Ｐ．89−91 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-61-60886 (JP, A) JP-A-1-201488 (JP, A) JP-A-60-103185 (JP, A) JP-A 63-88 153295 (JP, A) JP-A-3-162598 (JP, A) JP-A-2-162,035 (JP, A) Kiyoshi Maruyama, Hideaki Mohri, co-authored "Functional plating", Second edition of the first edition (Showa 61) -1-20), p. 89-91
Claims (1)
理被膜、第２層として無機高分子化合物１００重量部に
対して２〜５０重量部の固形潤滑剤、１〜２０重量部の
水性樹脂で構成される潤滑被膜を膜厚として０．１〜
５．０μｍ有するプレス性および耐摺動摩耗性に優れた
硬質潤滑めっき鋼板。1. A chemical conversion coating as a first layer on a surface of a plated steel sheet, 2 to 50 parts by weight of a solid lubricant based on 100 parts by weight of an inorganic polymer compound as a second layer, and 1 to 20 parts by weight of an aqueous resin The lubricating film composed of
Hard lubricated plated steel sheet having 5.0 μm and excellent in pressability and sliding wear resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4238843A JP2696461B2 (en) | 1992-08-17 | 1992-08-17 | Hard lubricated plated steel sheet with excellent pressability and sliding wear resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4238843A JP2696461B2 (en) | 1992-08-17 | 1992-08-17 | Hard lubricated plated steel sheet with excellent pressability and sliding wear resistance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0657441A JPH0657441A (en) | 1994-03-01 |
| JP2696461B2 true JP2696461B2 (en) | 1998-01-14 |
Family
ID=17036101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4238843A Expired - Lifetime JP2696461B2 (en) | 1992-08-17 | 1992-08-17 | Hard lubricated plated steel sheet with excellent pressability and sliding wear resistance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2696461B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003055682A (en) | 2001-08-17 | 2003-02-26 | Nippon Parkerizing Co Ltd | Protective film treating agent and metallic material having protective film |
| JP5806673B2 (en) * | 2010-09-30 | 2015-11-10 | 日本精線株式会社 | Stainless steel wire for cold heading |
| CN110366606B (en) * | 2017-03-03 | 2021-11-16 | 日产自动车株式会社 | High design sliding member |
| JP7046317B2 (en) * | 2018-06-11 | 2022-04-04 | 日産自動車株式会社 | Headrest stay |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60103185A (en) * | 1983-11-11 | 1985-06-07 | Nippon Steel Corp | Two-layered chromate treated steel sheet having excellent corrosion resistance and lubricity |
| JPS6160886A (en) * | 1984-08-31 | 1986-03-28 | Nippon Kokan Kk <Nkk> | Rustproof lubricated steel sheet |
| JPH01201488A (en) * | 1988-02-08 | 1989-08-14 | Sumitomo Metal Ind Ltd | Rust inhibitive lubricated steel sheet having excellent weldability and electrodeposition paintability |
-
1992
- 1992-08-17 JP JP4238843A patent/JP2696461B2/en not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| 丸山清、毛利秀明、共著「機能性めっき」、初版第２刷（昭６１−１−２０），Ｐ．８９−９１ |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0657441A (en) | 1994-03-01 |
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