JPH1036764A - Epoxy resin coating material and epoxy resin coated iron alloy material - Google Patents
Epoxy resin coating material and epoxy resin coated iron alloy materialInfo
- Publication number
- JPH1036764A JPH1036764A JP19867796A JP19867796A JPH1036764A JP H1036764 A JPH1036764 A JP H1036764A JP 19867796 A JP19867796 A JP 19867796A JP 19867796 A JP19867796 A JP 19867796A JP H1036764 A JPH1036764 A JP H1036764A
- Authority
- JP
- Japan
- Prior art keywords
- epoxy resin
- iron alloy
- stainless steel
- resin paint
- inorganic fine
- 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.)
- Granted
Links
Landscapes
- Sealing Material Composition (AREA)
- Paints Or Removers (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、ステンレス鋼など
の鉄合金体用のエポキシ樹脂塗料、並びに該エポキシ樹
脂塗料の硬化塗膜を有する鉄合金体に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an epoxy resin paint for an iron alloy such as stainless steel, and an iron alloy having a cured coating film of the epoxy resin paint.
【0002】[0002]
【従来の技術】自動車用の2層型メタルガスケットは、
そのシリンダーボア周辺部の断面例を図1に示す通り、
該シリンダーボアCBの周囲で折り返し部11を有する
ステンレス鋼板体1とビード部21を有するステンレス
鋼板体2とからなっている。ビード部21およびその近
傍において、ステンレス鋼板体1はその外側の片面にフ
ッ素ゴム層12を有し、一方、ステンレス鋼板体2は、
フッ素ゴム層22および22’とその両面にフッ素ゴム
層を有する。ステンレス鋼板体2の内側のフッ素ゴム層
22’は、ステンレス鋼板体2にではなしにステンレス
鋼板体1の内側に設けられる場合もある。なお図1の断
面例においては、ビード部21の内部23には硬質有機
高分子層24が設けられている。かかる硬質有機高分子
層24は、現用のメタルガスケットには未だ設けられて
いないが、メタルガスケットのシール機能の一層の向上
を図るべく上記の折り返し部11の代替として、あるい
は図1のように折り返し部11と併用の状態において最
近その設置が検討されている。いずれにせよ、シリンダ
ーボア周辺部におけるビード部21は、該メタルガスケ
ットのシール機能を高めるために設けられているが、メ
タルガスケットの使用中における締めつけ圧力により次
第にへたりが生じるので、このへたりを防止するために
ステンレス鋼板体1に折り返し部11を設けて、ビード
部21の全屈を防止している。2. Description of the Related Art Two-layer metal gaskets for automobiles are:
As shown in FIG. 1, an example of a cross section around the cylinder bore is shown in FIG.
A stainless steel plate 1 having a folded portion 11 and a stainless steel plate 2 having a bead 21 around the cylinder bore CB. In the bead portion 21 and the vicinity thereof, the stainless steel plate 1 has the fluoro rubber layer 12 on one outer surface, while the stainless steel plate 2
It has fluoro rubber layers 22 and 22 'and fluoro rubber layers on both surfaces. The fluoro rubber layer 22 ′ inside the stainless steel plate body 2 may be provided not inside the stainless steel plate body 2 but inside the stainless steel plate body 1. In the cross-sectional example of FIG. 1, a hard organic polymer layer 24 is provided inside the bead portion 21. Such a hard organic polymer layer 24 is not yet provided on the metal gasket in use. However, in order to further improve the sealing function of the metal gasket, the hard organic polymer layer 24 is replaced with the folded portion 11 described above or folded as shown in FIG. Recently, its installation in combination with the unit 11 has been considered. In any case, the bead portion 21 in the peripheral portion of the cylinder bore is provided to enhance the sealing function of the metal gasket. However, since the tightening pressure during the use of the metal gasket gradually causes a set, the set is reduced. In order to prevent this, the folded portion 11 is provided on the stainless steel plate body 1 to prevent the bead portion 21 from being bent completely.
【0003】ビード部21は、その高さは通常0.1〜
0.4mm程度であり、これに対してステンレス鋼板体
1の厚みは例えば0.10〜0.15mm程度であっ
て、一般的にビード部21の高さの方がステンレス鋼板
体1の厚み、換言すると、上記両鋼板体1、2間の間隙
幅より大きい。従って、ビード部21のクッション作用
が生じて、それによりシール機能が達成されるのである
が、折り返し部11だけではへたり防止が不十分となる
場合もあり、そのような場合には、ビード部21の内部
23の硬質有機高分子層24がビード部21のへたりの
ストッパーとして機能する。該層24のような硬質有機
高分子層をビード部21の内部23内以外に、ビード部
21の近傍の外部、例えば図1のBで示す位置辺り、即
ちビード部21の存在する位置よりシリンダーボアCB
に近い位置でのステンレス鋼板体2の内表面上あるいは
ステンレス鋼板体1の内表面上など種々の箇所に設ける
提案もある。かかる硬質有機高分子層は、該層24も含
めて、一般的にその層厚や幅を自由に設定することがで
きるので、ビード部21や折り返し部11自体の設計、
さらにはそれらの近傍部の設計に大きな自由度を与える
役割を果たす。以上の理由から、ビード部21の内外や
その近傍などに硬質有機高分子層を形成する技術が重要
となる。[0003] The height of the bead portion 21 is usually 0.1 to
On the other hand, the thickness of the stainless steel plate 1 is, for example, about 0.10 to 0.15 mm, and generally, the height of the bead portion 21 is greater than the thickness of the stainless steel plate 1, In other words, it is larger than the gap width between the two steel plates 1 and 2. Therefore, the bead portion 21 has a cushioning effect and thereby achieves a sealing function. However, there is a case where the folded portion 11 alone does not sufficiently prevent the set, and in such a case, the bead portion is not provided. The hard organic polymer layer 24 inside the inside 21 functions as a stopper for setting the bead portion 21. The hard organic polymer layer such as the layer 24 is placed in the cylinder 23 from the position outside the bead portion 21, for example, around the position shown in FIG. Bore CB
There are also proposals to provide them at various locations such as on the inner surface of the stainless steel plate body 2 or on the inner surface of the stainless steel plate body 1 at a position close to. In general, the thickness and width of the hard organic polymer layer, including the layer 24, can be freely set, so that the design of the bead portion 21 and the folded portion 11 itself can be made.
Furthermore, it plays a role in giving great freedom to the design of the vicinity thereof. For the above reasons, a technique for forming a hard organic polymer layer inside and outside the bead portion 21 and its vicinity is important.
【0004】本発明者らは、硬質有機高分子層24など
硬質有機高分子層の構成材料の選択研究から、圧縮応力
緩和特性の優れているエポキシ樹脂が特に優れていると
の知見を先に得た。ところで本発明者らの引き続く実験
によれば、エポキシ樹脂塗料は、鉄合金に対して濡れ性
が悪いためと思われるが、鉄合金の表面、特にビード部
21におけるような彎曲した表面に塗布すると、撥きを
生じて連続塗膜を形成し難い問題がある。室温で高粘度
のエポキシ樹脂塗料は、撥き力よりも高粘度に基づく形
状保持力が強いので室温下では均一厚さに塗布すること
は可能ではあるものの、その塗膜を硬化するために高温
度に加熱すると硬化に先立って高温度による塗料の粘度
低下によりやはり撥きにより連続塗膜が収縮して不均一
な盛り上りや多数の皺を生じるなどの問題がある。[0004] The inventors of the present invention have first studied on the selection of the constituent materials of the hard organic polymer layer such as the hard organic polymer layer 24 and found that an epoxy resin having excellent compression stress relaxation characteristics is particularly excellent. Obtained. By the way, according to a subsequent experiment by the present inventors, it is considered that the epoxy resin paint has poor wettability to the iron alloy. However, when the epoxy resin paint is applied to the surface of the iron alloy, particularly to a curved surface such as the bead portion 21, And it is difficult to form a continuous coating film due to repelling. Epoxy resin paints with high viscosity at room temperature have a stronger shape retention force based on high viscosity than repellency, so it is possible to apply a uniform thickness at room temperature. When heated to a temperature, there is a problem in that the viscosity of the coating material decreases due to a high temperature prior to curing, so that the continuous coating film also contracts due to repelling, causing uneven swelling and numerous wrinkles.
【0005】[0005]
【発明が解決しようとする課題】本発明の課題は、鉄合
金体、特にステンレス鋼体に対して塗布性の改善された
エポキシ樹脂塗料を提供することにある。本発明の他の
課題は、鉄合金体の所望の表面にエポキシ樹脂塗料の硬
化塗膜を有するエポキシ樹脂塗布鉄合金体を提供するこ
とにある。SUMMARY OF THE INVENTION An object of the present invention is to provide an epoxy resin paint having improved applicability to an iron alloy body, particularly a stainless steel body. Another object of the present invention is to provide an epoxy resin-coated iron alloy body having a cured coating of an epoxy resin paint on a desired surface of the iron alloy body.
【0006】[0006]
【課題を解決するための手段】本発明は、次の特徴を有
する。 1.無機微細体を含有するエポキシ樹脂からなることを
特徴とする鉄合金体塗布用のエポキシ樹脂塗料。 2.エポキシ樹脂100重量部あたり10〜50重量部
の無機微細体を含有する上記1記載のエポキシ樹脂塗
料。 3.無機微細体が、タルク、クレー、二硫化モリブデ
ン、シリカ、炭酸カルシウム、マイカおよびアルミナか
らなる群から選ばれた少なくとも1種である上記1また
は2記載のエポキシ樹脂塗料。 4.鉄合金体の所望の表面に、上記1〜3のいずれかに
記載のエポキシ樹脂塗料の硬化塗膜を有することを特徴
とするエポキシ樹脂塗布鉄合金体。 5.鉄合金体が、ステンレス鋼体である上記4記載のエ
ポキシ樹脂塗布鉄合金体。 6.鉄合金体が、メタルガスケット用板材である上記4
または5記載のエポキシ樹脂塗布鉄合金体。 7.鉄合金体が、ビード部を有するステンレス鋼製のガ
スケット用板材であり、該ビード部の少なくとも内側お
よび/または外側にエポキシ樹脂塗料の硬化塗膜を有す
る上記4〜6のいずれかに記載のエポキシ樹脂塗布鉄合
金体。The present invention has the following features. 1. An epoxy resin paint for applying an iron alloy body, comprising an epoxy resin containing an inorganic fine body. 2. 2. The epoxy resin paint according to the above 1, which contains 10 to 50 parts by weight of inorganic fine particles per 100 parts by weight of the epoxy resin. 3. 3. The epoxy resin paint according to 1 or 2, wherein the inorganic fine particles are at least one selected from the group consisting of talc, clay, molybdenum disulfide, silica, calcium carbonate, mica, and alumina. 4. An epoxy resin-coated iron alloy body having a cured coating of the epoxy resin paint according to any one of the above items 1 to 3 on a desired surface of the iron alloy body. 5. 5. The epoxy resin-coated iron alloy according to the item 4, wherein the iron alloy is a stainless steel. 6. The above 4 wherein the iron alloy body is a plate material for a metal gasket.
Or the epoxy resin-coated iron alloy according to 5. 7. The epoxy according to any of 4 to 6, wherein the iron alloy body is a stainless steel gasket plate material having a bead portion, and having a cured coating film of an epoxy resin paint at least inside and / or outside the bead portion. Resin coated iron alloy body.
【0007】[0007]
【作用】本発明のエポキシ樹脂塗料は、無機微細体を含
有することにより、鉄合金体に対する濡れ性が改善さ
れ、且つ加熱硬化時の高温度下においても高い見かけ粘
度を保持する。このために、室温においては種々の鉄合
金体の所望の表面に良好に塗布することが可能であり、
また該塗料塗膜を硬化する際の高温度に加熱しても高い
見かけ粘度を保持するので撥きを生じることがない。本
発明のエポキシ樹脂塗布鉄合金体は、上記したエポキシ
樹脂塗料の硬化塗膜を有するので、その硬化塗膜は実質
的に収縮はなく、膜厚や膜形状において良好な連続性を
具備し得る。The epoxy resin coating composition of the present invention contains inorganic fine particles, so that the wettability to the iron alloy body is improved and the epoxy resin coating composition maintains a high apparent viscosity even at a high temperature during heat curing. For this reason, at room temperature, it is possible to satisfactorily apply to desired surfaces of various iron alloy bodies,
Further, even if the coating film is heated to a high temperature at the time of curing, a high apparent viscosity is maintained, so that repelling does not occur. Since the epoxy resin-coated iron alloy body of the present invention has a cured coating film of the above-described epoxy resin paint, the cured coating film has substantially no shrinkage and can have good continuity in film thickness and film shape. .
【0008】[0008]
【発明の実施の形態】以下、本発明を詳細に説明する。
本発明におけるエポキシ樹脂塗料のベースとなるエポキ
シ樹脂としては、例えばビスフェノールA系、ノボラッ
ク系、環状脂肪族系、長鎖脂肪族系、ヒダントイン系、
イソシアヌレート系などの各種のエポキシ樹脂を用いる
ことができる。就中、塗布性の面から室温で液状である
もの、特に25℃における粘度が少なくとも1000セ
ンチポアズ、更に1,200〜50,000センチポア
ズのものが好ましい。硬化剤としては、ジエチレントリ
アミン、トリエチレンテトラミン、ジアミノジフェニル
メタン、ジアミノジフェニルスルホン、m−フェニレン
ジアミン、ポリアミドアミンおよびその誘導体、ジシア
ンジアミド、メラミンなどのアミン類、イソフタロヒド
ラジンなどのヒドラジン類、3フッ化ほう素−モノエチ
ルアミン錯体などの3フッ化ほう素とアミンとのコンプ
レックス類、無水フタル酸、ヘキサヒドロフタル酸無水
物、メチルテトラヒドロ無水フタル酸、無水メチルナジ
ック酸、無水ピロメリット酸などの酸無水物、2−メチ
ルイミダゾール、2−エチル−4−メチルイミダゾール
などのイミダゾール類など、各種のエポキシ樹脂用硬化
剤の一種または二種以上が用いられる。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.
Examples of the epoxy resin serving as a base of the epoxy resin paint in the present invention include bisphenol A, novolak, cycloaliphatic, long-chain aliphatic, hydantoin,
Various epoxy resins such as an isocyanurate type can be used. Among them, those which are liquid at room temperature, particularly those having a viscosity at 25 ° C. of at least 1,000 centipoise, and more preferably 1,200 to 50,000 centipoise, are preferred from the viewpoint of applicability. Examples of the curing agent include diethylenetriamine, triethylenetetramine, diaminodiphenylmethane, diaminodiphenylsulfone, m-phenylenediamine, polyamideamine and derivatives thereof, amines such as dicyandiamide and melamine, hydrazines such as isophthalohydrazine, and boron trifluoride. -Complexes of boron trifluoride and amine such as monoethylamine complex, acid anhydrides such as phthalic anhydride, hexahydrophthalic anhydride, methyltetrahydrophthalic anhydride, methylnadic anhydride, pyromellitic anhydride, One or more kinds of epoxy resin curing agents such as imidazoles such as 2-methylimidazole and 2-ethyl-4-methylimidazole are used.
【0009】これら各種の硬化剤のうち、工場での長時
間に及ぶ連続塗布作業に耐え得るポットライフの長い潜
在性硬化剤が特に好ましい。かかる潜在性硬化剤を例示
すると、ジシアンジアミド、メラミン、イソフタロヒド
ラジン、3フッ化ほう素−モノエチルアミン錯体などの
3フッ化ほう素とアミンとのコンプレックス類、上記し
た各種の硬化剤、例えばジエチレントリアミンなどを吸
着したモレキュラーシーブ形硬化剤類、上記各種硬化剤
をマイクロカプセル化したものなどである。マイクロカ
プセル化物は、通常、使用時にマイクロカプセルを圧力
や熱にて潰して用いられる。Among these various curing agents, a latent curing agent having a long pot life and capable of withstanding a long continuous application operation in a factory is particularly preferable. Examples of such latent curing agents include complexes of boron trifluoride and amine such as dicyandiamide, melamine, isophthalohydrazine and boron trifluoride-monoethylamine complex, and various curing agents described above, for example, diethylene triamine. And molecular sieve type hardeners adsorbing the above, and microcapsules of the above various hardeners. The microencapsulated product is usually used by crushing the microcapsule with pressure or heat at the time of use.
【0010】本発明において用いられる無機微細体の化
学種に関しては、エポキシ樹脂に対して化学的に不活性
なもの、例えば石英ガラス、珪酸ガラスなどのガラスの
粉体、天然や合成の各種セラミックの粉体、鉄、銅、ニ
ッケル、ステンレス、真鍮などの金属や合金の粉体、ア
ルミナ、シリカ、亜鉛華、酸化鉄、酸化銅などの金属酸
化物の粉体、タルク、クレー、マイカ、バーミキュライ
ト、炭酸カルシウム、カーボンブラックなどのゴムやプ
ラスチックの充填剤、二硫化モリブデンなどのその他の
無機物が例示される。就中、タルク、クレー、二硫化モ
リブデン、シリカ、炭酸カルシウム、マイカ、およびア
ルミナなど一種または二種以上が好ましい。かかる無機
微細体の形状に関しては、球形、各種の角形、あるいは
それ以外の異形の粉粒体、ウィスカー、針状、繊維状、
などの長尺体、あるいはマイカ、膨張したバーミキュラ
イトの砕片などの板状体などであってもよい。粉粒体類
の無機微細体については、100メッシュのタイラー篩
を100%通過するもの、特に300メッシュのタイラ
ー篩を100%通過する粒度のものが好ましい。長尺体
や板状体の無機微細体については、アスペクト比が1.
5〜1000程度で且つ顕微鏡観察による最長部の長さ
が0.1〜80μm、特に1〜40μmのものが好まし
い。Regarding the chemical species of the inorganic fine particles used in the present invention, those that are chemically inert to epoxy resins, for example, glass powder such as quartz glass and silicate glass, natural and synthetic ceramics, etc. Powders, powders of metals and alloys such as iron, copper, nickel, stainless steel and brass, powders of metal oxides such as alumina, silica, zinc oxide, iron oxide and copper oxide, talc, clay, mica, vermiculite, Examples thereof include rubber and plastic fillers such as calcium carbonate and carbon black, and other inorganic substances such as molybdenum disulfide. Of these, one or more of talc, clay, molybdenum disulfide, silica, calcium carbonate, mica, and alumina are preferred. Regarding the shape of such inorganic fine particles, spherical, various square, or other irregularly shaped powders, whiskers, needles, fibers,
Or a plate-like body such as mica or expanded vermiculite fragments. Regarding the inorganic fine particles of powders, those having a particle size that passes 100% through a 100-mesh Tyler sieve, particularly, a particle size that passes 100% through a 300-mesh Tyler sieve are preferable. The aspect ratio of the inorganic fine body of a long body or a plate-like body is 1.
Those having a length of about 5 to 1000 and a longest part by a microscope observation of 0.1 to 80 μm, particularly 1 to 40 μm are preferable.
【0011】無機微細体の使用量が過少であると、その
使用によっても前記した効果が乏しく、一方、使用量が
過大であると、得られたエポキシ樹脂と無機微細体の混
合物は、流動性が乏しくなって塗布性が悪くなる。しか
して無機微細体の使用量は、エポキシ樹脂100重量部
あたり10〜50重量部、特に15〜40重量部とする
ことが好ましい。When the amount of the inorganic fine particles used is too small, the above-mentioned effects are poor even with the use of the inorganic fine particles. On the other hand, when the amount is too large, the mixture of the obtained epoxy resin and the inorganic fine particles has fluidity. And poor applicability. The amount of the inorganic fine particles to be used is preferably 10 to 50 parts by weight, particularly preferably 15 to 40 parts by weight, per 100 parts by weight of the epoxy resin.
【0012】本発明のエポキシ樹脂塗料は、上記したエ
ポキシ樹脂と無機微細体とを、あるいは必要に応じて添
加し得る他の成分、例えば酸化防止剤、着色剤、可塑
剤、アクリロニトリル−ブタジエンゴムなどの改質剤な
どと共に通常の混合機、例えばサンドミルを用いて混合
して製造することができる。なお、混合を一層容易とす
るため、あるいは塗布性を改善する目的などで、適当な
溶剤を必要に応じて添加し希釈することも可能である。The epoxy resin paint of the present invention comprises the above-mentioned epoxy resin and inorganic fine particles, or other components which can be added as required, such as antioxidants, coloring agents, plasticizers, acrylonitrile-butadiene rubber, etc. And a conventional mixer such as a sand mill. In order to further facilitate the mixing or to improve the coating properties, it is possible to add and dilute an appropriate solvent as needed.
【0013】本発明のエポキシ樹脂塗布鉄合金体は、鉄
合金体の所望個所に上記した本発明のエポキシ樹脂塗料
を常温または適当な温度で塗布し、次いでエポキシ樹脂
塗料の塗布層を加熱硬化することにより製造することが
できる。鉄合金体を構成する鉄合金としては、鉄や鋼な
どのFe−C合金、フェライト系ステンレス、マルテン
サイト系ステンレス、オーステナイト系ステンレスなど
のステンレス鋼、フェロマンガン、フェロシリコン、フ
ェロニッケル、フェロクロムあるいはその他の、鉄を主
成分とする、特に鉄の含有量が少なくとも80重量%の
フェロアロイである。かかる鉄合金のうちでも、ステン
レス鋼、特にSUS301−CSP、SUS304−C
SP、SUS420J2−CSP、SUS631−CS
P、SUS304、SUS430などのステンレス鋼が
好ましい。The epoxy resin-coated iron alloy body of the present invention is obtained by applying the above-described epoxy resin paint of the present invention to a desired portion of the iron alloy body at room temperature or an appropriate temperature, and then heating and curing the applied layer of the epoxy resin paint. It can be manufactured by the following. Examples of the iron alloy constituting the iron alloy body include Fe-C alloys such as iron and steel, stainless steels such as ferritic stainless steel, martensitic stainless steel, and austenitic stainless steel, ferromanganese, ferrosilicon, ferronickel, ferrochrome, and others. Is a ferroalloy containing iron as a main component, particularly having an iron content of at least 80% by weight. Among such iron alloys, stainless steel, particularly SUS301-CSP, SUS304-C
SP, SUS420J2-CSP, SUS631-CS
Stainless steels such as P, SUS304 and SUS430 are preferred.
【0014】種々の形状や寸法の鉄合金体が、本発明の
エポキシ樹脂塗布鉄合金体の素材となり得る。例えば平
板、波板、丸棒、角材、ブロックなどである。それらの
うちでも、メタルガスケット用板材のような前記したビ
ード部の如き凹凸加工部を有する打ち抜き板、就中ステ
ンレス鋼製のものは、従来のエポキシ樹脂塗料では塗布
が困難であって本発明のエポキシ樹脂塗料にて初めて良
好な硬化塗布層が形成され得るので特に好ましい。上記
した凹凸加工部の大きさは、例えば図1のステンレス鋼
板体2に形成されたビード部21のように、板体の一方
の側に隆起したた凸加工部についていえば、凸部の高さ
が0.1〜0.4mm程度、幅は1.0〜4.0mm程
度である。図1のステンレス鋼板体2に形成されたビー
ド部21内の硬質有機高分子層24を本発明のエポキシ
樹脂硬化物にて構成したものは、本発明のエポキシ樹脂
塗布鉄合金体の一実施例となる。Iron alloy bodies having various shapes and dimensions can be used as the material of the epoxy resin-coated iron alloy body of the present invention. For example, it is a flat plate, a corrugated plate, a round bar, a square bar, a block, or the like. Among them, a punched plate having a textured portion such as a bead portion, such as a metal gasket plate material, and particularly a plate made of stainless steel is difficult to apply with a conventional epoxy resin paint, and the present invention An epoxy resin paint is particularly preferable because a good cured coating layer can be formed for the first time. The size of the above-mentioned concavo-convex processed portion is, for example, the height of the protruded portion in the case of a protruded processed portion that is raised on one side of the plate body, such as a bead portion 21 formed in the stainless steel plate body 2 in FIG. Is about 0.1 to 0.4 mm, and the width is about 1.0 to 4.0 mm. The hard organic polymer layer 24 in the bead portion 21 formed on the stainless steel plate 2 of FIG. 1 is made of the cured epoxy resin of the present invention. Becomes
【0015】上記した寸法のビード部を少なくとも1個
所有するステンレス鋼板体であって、且つ該ビード部の
内側および/または外側にエポキシ樹脂塗料の硬化塗膜
を有する本発明のエポキシ樹脂塗布鉄合金体は、メタル
ガスケット用板材として、就中、自動車のシリンダヘッ
ドガスケット用材として特に好適である。The epoxy resin-coated iron alloy according to the present invention, which is a stainless steel plate body having at least one bead portion having the above-mentioned dimensions, and having a cured coating of an epoxy resin paint inside and / or outside the bead portion. The body is particularly suitable as a plate material for metal gaskets, especially as a material for cylinder head gaskets in motor vehicles.
【0016】[0016]
【実施例】以下、本発明を実施例および比較例により一
層詳細に説明する。The present invention will be described below in more detail with reference to Examples and Comparative Examples.
【0017】実施例1 ビスフェノールA型エポキシ樹脂(油化シェルエポキシ
社製の商品名エピコート828、25℃における粘度:
約1,350cp)100重量部、2−エチル−4−メ
チルイミダゾール(油化シェルエポキシ社製の商品名エ
ピキュアEMI−24)5重量部、およびタルク(日本
タルク社製の商品名タルクSWB、粒度:タイラー篩の
325メッシュを99.8%以上通過)15重量部とを
混合機((日本精機製作所社製の商品名ACE HOM
OGENIZER AM−10)にて室温で均一に混合
して製造したエポキシ樹脂塗料。Example 1 Bisphenol A type epoxy resin (Epicoat 828 manufactured by Yuka Shell Epoxy Co., Ltd., viscosity at 25 ° C .:
100 parts by weight of about 1,350 cp), 5 parts by weight of 2-ethyl-4-methylimidazole (trade name: Epicure EMI-24 manufactured by Yuka Shell Epoxy Co., Ltd.), and talc (trade name: talc SWB manufactured by Nippon Talc Co., particle size) : 15 parts by weight of 325 mesh of Tyler sieve and 99.8% or more were mixed with a mixer (ACE HOM (trade name, manufactured by Nippon Seiki Seisakusho)
Epoxy resin paint manufactured by mixing uniformly at room temperature with OGENIZER AM-10).
【0018】実施例2 タルクの配合量をエポキシ樹脂100重量部に対して2
5重量部とした点のみ実施例1と異なるエポキシ樹脂塗
料。Example 2 The amount of talc was 2 per 100 parts by weight of epoxy resin.
An epoxy resin paint different from that of Example 1 only in that the amount was 5 parts by weight.
【0019】実施例3 タルクの配合量をエポキシ樹脂100重量部に対して3
5重量部とした点のみ実施例1と異なるエポキシ樹脂塗
料。Example 3 The amount of talc was 3 per 100 parts by weight of epoxy resin.
An epoxy resin paint different from that of Example 1 only in that the amount was 5 parts by weight.
【0020】実施例4 フェノールノボラック型エポキシ樹脂(油化シェルエポ
キシ社製の商品名エピコート154、52℃における粘
度:約5,100cp)100重量部、ジシアンジアミ
ド(油化シェルエポキシ社製の商品名エピキュアDIC
Y−7)5重量部、およびクレー(浅田製粉社製の商品
名ネオキャリアK、粒度:タイラー篩の325メッシュ
を97%以上通過)20重量部とを実施例1と同様の方
法で室温下で均一に混合して製造したエポキシ樹脂塗
料。Example 4 100 parts by weight of a phenol novolak type epoxy resin (Epicoat 154, trade name, manufactured by Yuka Shell Epoxy Co., Ltd., viscosity at 52 ° C .: about 5,100 cp), dicyandiamide (Epicure, tradename, manufactured by Yuka Shell Epoxy Co., Ltd.) DIC
Y-7) 5 parts by weight and 20 parts by weight of clay (Neocarrier K, trade name, manufactured by Asada Flour Milling Co., Ltd., particle size: 97% or more passing through 325 mesh of a Tyler sieve) at room temperature in the same manner as in Example 1. Epoxy resin paint manufactured by mixing uniformly with.
【0021】実施例5 市販の1液性エポキシ樹脂(スリーボンド社製の商品名
2212B、25℃における粘度:約25,000c
p)100重量部、およびタルク(日本タルク社製の商
品名タルクSWB、粒度:タイラー篩の325メッシュ
を99.8%以上通過)20重量部とを実施例1と同様
の方法で室温下で均一に混合して製造したエポキシ樹脂
塗料。Example 5 Commercial one-part epoxy resin (trade name: 2212B, manufactured by Three Bond Co., viscosity at 25 ° C .: about 25,000 c)
p) 100 parts by weight and 20 parts by weight of talc (talc SWB, trade name, manufactured by Nippon Talc, particle size: 99.8% or more passing through 325 mesh of a Tyler sieve) at room temperature in the same manner as in Example 1. Epoxy resin paint manufactured by mixing evenly.
【0022】比較例1 実施例1とは、タルクを加えなかった点のみ異なるエポ
キシ樹脂塗料。Comparative Example 1 An epoxy resin paint different from Example 1 only in that talc was not added.
【0023】比較例2 タルクの配合量をエポキシ樹脂100重量部に対して3
重量部とした点のみ実施例1と異なるエポキシ樹脂塗
料。Comparative Example 2 The amount of talc was 3 per 100 parts by weight of the epoxy resin.
Epoxy resin paint different from Example 1 only in parts by weight.
【0024】比較例3 実施例5とは、タルクを加えなかった点のみ異なるエポ
キシ樹脂塗料。Comparative Example 3 An epoxy resin paint different from Example 5 only in that talc was not added.
【0025】実施例6〜10、比較例4〜6 厚さ0.25mmのSUS301−CSP3/4Hから
なるメタルガスケット用板材より内径55mm、外径7
5mmのリング状試料を打ち抜き、該リング状試料の幅
方向中央部全周にわたり、幅3.4mm、高さ0.30
mmのビードを設けた。このビード付き試料の全面をブ
ラスト処理により清浄とした。次いで実施例1〜5、お
よび比較例1〜3の各エポキシ樹脂塗料を25℃におい
て、該ビードの凹側面より凹部内にスクリーン印刷によ
り塗布幅1.0mmとなるように塗布した。また別のリ
ング状試料の該ビードの凸側面より凸部近傍の平坦部に
スクリーン印刷により塗布幅1.5mmとなるように塗
布した。ついで加熱硬化のために各塗布面を上にして恒
温槽内で加熱しエポキシ樹脂塗料を硬化し、かくしてそ
れぞれ実施例6〜10、比較例4〜6のエポキシ樹脂塗
布鉄合金体を得た。なお、実施例6、7、8、および比
較例4、5の加熱条件は、150℃で30分であり、実
施例9は160℃で60分であり、実施例10と比較例
6とは100℃で20分である。Examples 6 to 10 and Comparative Examples 4 to 6 A metal gasket plate made of SUS301-CSP3 / 4H having a thickness of 0.25 mm has an inner diameter of 55 mm and an outer diameter of 7 mm.
A 5 mm ring-shaped sample was punched out, and was 3.4 mm in width and 0.30 in height over the entire circumference in the center in the width direction of the ring-shaped sample.
mm bead was provided. The entire surface of the beaded sample was cleaned by blasting. Next, the epoxy resin paints of Examples 1 to 5 and Comparative Examples 1 to 3 were applied at 25 ° C. from the concave side surface of the bead to the concave portion by screen printing so as to have an application width of 1.0 mm. Further, another ring-shaped sample was applied by screen printing to a flat portion near the convex portion from the convex side surface of the bead so as to have an application width of 1.5 mm. Next, for the purpose of heat curing, the epoxy resin paint was cured by heating in a thermostat with the respective application surfaces facing upward, thus obtaining the epoxy resin-coated iron alloy bodies of Examples 6 to 10 and Comparative Examples 4 to 6, respectively. The heating conditions of Examples 6, 7, 8 and Comparative Examples 4 and 5 were 150 ° C. for 30 minutes, Example 9 was 160 ° C. for 60 minutes, and Example 10 and Comparative Example 6 were different. 20 minutes at 100 ° C.
【0026】実施例1〜5のエポキシ樹脂塗料を用いて
なる実施例6〜10の各エポキシ樹脂塗布鉄合金体にお
いては、ビード部の凹部内に塗布した場合も凸部近傍平
坦部に塗布した場合も幅、厚さともに均一性が良好な硬
化エポキシ樹脂層が形成されていた。これに対して、比
較例1〜3のエポキシ樹脂塗料を用いてなる比較例4〜
6の各エポキシ樹脂塗布鉄合金体においては、エポキシ
樹脂塗料の撥きが生じて、その硬化エポキシ樹脂層は、
幅、厚さともに極めて不均一となった。In each of the epoxy resin-coated iron alloy bodies of Examples 6 to 10 using the epoxy resin paints of Examples 1 to 5, even when applied in the concave portion of the bead portion, it was applied to the flat portion near the convex portion. Also in this case, a cured epoxy resin layer having good uniformity in both width and thickness was formed. In contrast, Comparative Examples 4 to 4 using the epoxy resin paints of Comparative Examples 1 to 3
In each epoxy resin-coated iron alloy body of No. 6, the epoxy resin paint is repelled, and the cured epoxy resin layer is
Both width and thickness became extremely uneven.
【0027】[0027]
【発明の効果】本発明のエポキシ樹脂塗料は、各種の鉄
合金体、特にステンレス鋼体に対して良好な塗布性を示
し、しかも塗布後の加熱硬化時の高温度下においても撥
きを生じることなく硬化する。従って、平板、波板、丸
棒、角材、ブロックなどの各種形状の鉄合金体の塗布に
好適である。また、本発明のエポキシ樹脂塗布鉄合金体
は、そのエポキシ樹脂塗料の硬化層は撥き部のない一様
な層を有する。該エポキシ樹脂塗布鉄合金体のうち、ビ
ード部の内側および/または外側にエポキシ樹脂塗料の
硬化塗膜を有するステンレス鋼体は、メタルガスケット
用板材として、就中自動車のシリンダヘッドガスケット
用材として特に好適である。The epoxy resin coating composition of the present invention exhibits good applicability to various iron alloy bodies, especially stainless steel bodies, and repels even at a high temperature during heat curing after application. Cures without Therefore, it is suitable for applying iron alloy bodies of various shapes such as a flat plate, corrugated plate, round bar, square bar, block and the like. Further, the epoxy resin-coated iron alloy body of the present invention has a cured layer of the epoxy resin paint having a uniform layer without a repellent portion. Among the epoxy resin-coated iron alloy bodies, a stainless steel body having a cured coating of an epoxy resin paint inside and / or outside a bead portion is particularly suitable as a metal gasket plate material, particularly a material for a cylinder head gasket of an automobile. It is.
【図1】自動車用2層型メタルガスケットの断面図例で
ある。FIG. 1 is an example of a sectional view of a two-layer metal gasket for an automobile.
1 ステンレス鋼板体 11 折り返し部 2 ステンレス鋼板体 21 ビード部 24 硬質有機高分子層 DESCRIPTION OF SYMBOLS 1 Stainless steel body 11 Folding part 2 Stainless steel body 21 Bead part 24 Hard organic polymer layer
Claims (7)
なることを特徴とする鉄合金体塗布用のエポキシ樹脂塗
料。1. An epoxy resin paint for applying an iron alloy body, comprising an epoxy resin containing an inorganic fine body.
50重量部の無機微細体を含有する請求項1記載のエポ
キシ樹脂塗料。2. 10 to 100 parts by weight of epoxy resin
The epoxy resin paint according to claim 1, which contains 50 parts by weight of inorganic fine particles.
モリブデン、シリカ、炭酸カルシウム、マイカ、および
アルミナからなる群から選ばれた少なくとも1種である
請求項1または2記載のエポキシ樹脂塗料。3. The epoxy resin coating according to claim 1, wherein the inorganic fine particles are at least one selected from the group consisting of talc, clay, molybdenum disulfide, silica, calcium carbonate, mica, and alumina.
のいずれかに記載のエポキシ樹脂塗料の硬化塗膜を有す
ることを特徴とするエポキシ樹脂塗布鉄合金体。4. The method according to claim 1, wherein a desired surface of the iron alloy body is provided.
An epoxy resin-coated iron alloy body having a cured coating of the epoxy resin paint according to any one of the above.
項4記載のエポキシ樹脂塗布鉄合金体。5. The iron alloy body coated with an epoxy resin according to claim 4, wherein the iron alloy body is a stainless steel body.
ある請求項4または5記載のエポキシ樹脂塗布鉄合金
体。6. The epoxy resin-coated iron alloy according to claim 4, wherein the iron alloy is a metal gasket plate.
ス鋼製のガスケット用板材であり、該ビード部の少なく
とも内側および/または外側にエポキシ樹脂塗料の硬化
塗膜を有する請求項4〜6のいずれかに記載のエポキシ
樹脂塗布鉄合金体。7. The stainless steel gasket plate having a bead portion, wherein the iron alloy body has a cured coating film of an epoxy resin paint at least inside and / or outside the bead portion. The epoxy resin-coated iron alloy according to any one of the above.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP19867796A JP3737569B2 (en) | 1996-07-29 | 1996-07-29 | Epoxy resin paint and epoxy resin-coated iron alloy body |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19867796A JP3737569B2 (en) | 1996-07-29 | 1996-07-29 | Epoxy resin paint and epoxy resin-coated iron alloy body |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH1036764A true JPH1036764A (en) | 1998-02-10 |
JP3737569B2 JP3737569B2 (en) | 2006-01-18 |
Family
ID=16395218
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JP19867796A Expired - Fee Related JP3737569B2 (en) | 1996-07-29 | 1996-07-29 | Epoxy resin paint and epoxy resin-coated iron alloy body |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6948714B1 (en) * | 1999-06-22 | 2005-09-27 | Dana Corporation | Gasket and method for producing a gasket |
WO2008088317A1 (en) * | 2007-01-04 | 2008-07-24 | Pipe Restoration Technologies, Inc. | Methods and systems for coating and sealing inside piping systems |
US7858149B2 (en) | 2002-08-28 | 2010-12-28 | Pipe Restoration Technologies, Llc | Methods and systems for coating and sealing inside piping systems |
US8399813B2 (en) | 2002-08-28 | 2013-03-19 | Pipe Restoration Technologies, Llc | Portable heating apparatus for heating interior piping systems |
US8696823B1 (en) | 2002-08-28 | 2014-04-15 | Pipe Restoration Technologies, Llc | Methods and systems for abrasive cleaning and barrier coating/sealing of pipes |
US9446429B2 (en) | 2002-08-28 | 2016-09-20 | Pipe Restoration Technologies, Llc | Barrier coating corrosion control methods and systems for interior piping systems |
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US9611973B2 (en) | 2002-08-28 | 2017-04-04 | Pipe Restoration Technologies, Llc | Process for coating the interior surface of water service lines |
-
1996
- 1996-07-29 JP JP19867796A patent/JP3737569B2/en not_active Expired - Fee Related
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6948714B1 (en) * | 1999-06-22 | 2005-09-27 | Dana Corporation | Gasket and method for producing a gasket |
US7858149B2 (en) | 2002-08-28 | 2010-12-28 | Pipe Restoration Technologies, Llc | Methods and systems for coating and sealing inside piping systems |
US8033242B2 (en) | 2002-08-28 | 2011-10-11 | Pipe Restoration Technologies, Llc | Methods and systems for coating and sealing inside of piping systems |
US8343579B2 (en) | 2002-08-28 | 2013-01-01 | Pipe Restoration Technologies, Llc | Methods and systems for coating and sealing inside of piping systems |
US8399813B2 (en) | 2002-08-28 | 2013-03-19 | Pipe Restoration Technologies, Llc | Portable heating apparatus for heating interior piping systems |
US8696823B1 (en) | 2002-08-28 | 2014-04-15 | Pipe Restoration Technologies, Llc | Methods and systems for abrasive cleaning and barrier coating/sealing of pipes |
US9352357B2 (en) | 2002-08-28 | 2016-05-31 | Pipe Restoration Technologies, Llc | Methods and systems for coating and sealing inside piping systems |
US9446429B2 (en) | 2002-08-28 | 2016-09-20 | Pipe Restoration Technologies, Llc | Barrier coating corrosion control methods and systems for interior piping systems |
US9555453B2 (en) | 2002-08-28 | 2017-01-31 | Pipe Restoration Technologies, Llc | Methods and systems for abrasive cleaning and barrier coating/sealing of pipes |
US9724730B2 (en) | 2002-08-28 | 2017-08-08 | Pipe Restoration Technologies, Llc | Methods and systems for coating and sealing inside piping systems |
WO2008088317A1 (en) * | 2007-01-04 | 2008-07-24 | Pipe Restoration Technologies, Inc. | Methods and systems for coating and sealing inside piping systems |
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