JPH01203763A - Laminated plate for cylinder head gasket - Google Patents
Laminated plate for cylinder head gasketInfo
- Publication number
- JPH01203763A JPH01203763A JP2757988A JP2757988A JPH01203763A JP H01203763 A JPH01203763 A JP H01203763A JP 2757988 A JP2757988 A JP 2757988A JP 2757988 A JP2757988 A JP 2757988A JP H01203763 A JPH01203763 A JP H01203763A
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- zinc
- layer
- stainless steel
- steel plate
- 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.)
- Pending
Links
- 229920001971 elastomer Polymers 0.000 claims abstract description 18
- 239000010935 stainless steel Substances 0.000 claims abstract description 15
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 15
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 claims abstract description 14
- 229910000165 zinc phosphate Inorganic materials 0.000 claims abstract description 14
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000007747 plating Methods 0.000 claims description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 229920000459 Nitrile rubber Polymers 0.000 abstract description 9
- 239000000853 adhesive Substances 0.000 abstract description 7
- 230000001070 adhesive effect Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 4
- 238000009713 electroplating Methods 0.000 abstract description 3
- 239000005011 phenolic resin Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical group [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000460 chlorine Substances 0.000 abstract description 2
- 229910052801 chlorine Inorganic materials 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract 2
- 229920000181 Ethylene propylene rubber Polymers 0.000 abstract 1
- 238000007796 conventional method Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 24
- 230000002528 anti-freeze Effects 0.000 description 9
- 229920001973 fluoroelastomer Polymers 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 239000012790 adhesive layer Substances 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- KEQFTVQCIQJIQW-UHFFFAOYSA-N N-Phenyl-2-naphthylamine Chemical compound C=1C=C2C=CC=CC2=CC=1NC1=CC=CC=C1 KEQFTVQCIQJIQW-UHFFFAOYSA-N 0.000 description 1
- 239000001825 Polyoxyethene (8) stearate Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- ZFMQKOWCDKKBIF-UHFFFAOYSA-N bis(3,5-difluorophenyl)phosphane Chemical compound FC1=CC(F)=CC(PC=2C=C(F)C=C(F)C=2)=C1 ZFMQKOWCDKKBIF-UHFFFAOYSA-N 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- LWNKHILEJJTLCI-UHFFFAOYSA-J calcium;magnesium;tetrahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[Mg+2].[Ca+2] LWNKHILEJJTLCI-UHFFFAOYSA-J 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000007739 conversion coating Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 238000007746 phosphate conversion coating Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 description 1
- 229960002447 thiram Drugs 0.000 description 1
Landscapes
- Gasket Seals (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、シリンダーへラドガスケット層積層板に関す
る。更に詳しくは、ステンレス鋼板上にゴム層を設けて
構成されるシリンダーへラドガスケット層積層板に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a cylinder rad gasket layer laminate. More specifically, the present invention relates to a cylinder rad gasket layer laminate formed by providing a rubber layer on a stainless steel plate.
〔従来の技術〕および〔発明が解決しようとする課題〕
車両などのシリンダーヘッド用ガスケットとしては、従
来アスベストをニトリルゴム、フェノール樹脂などで固
めた積層板が用いられていたが、昨今のアスベスト規制
から、ステンレス鋼板上に接着剤層を介してゴム層を設
けた積層板が使用されるようになってきている。[Prior art] and [Problem to be solved by the invention]
Conventionally, laminates made of asbestos hardened with nitrile rubber, phenolic resin, etc. have been used as gaskets for cylinder heads of vehicles, but due to recent regulations on asbestos, a rubber layer is now attached to a stainless steel plate via an adhesive layer. Increasingly, laminates are being used.
しかしながら、接着剤塗布ステンレス鋼板にフッ素ゴム
などをコーティングしてゴム層を形成させた積層板では
、ガスケットの対象シールの一つである冷却水（不凍液
）により、使用中にゴム層が剥離してしまうという現象
がみられた。However, with laminates in which a rubber layer is formed by coating an adhesive-coated stainless steel plate with fluororubber, etc., the rubber layer may peel off during use due to cooling water (antifreeze), which is one of the target seals for gaskets. A phenomenon of collapsing was observed.
その原因としては、不凍液中の電解質成分がステンレス
鋼板表面に浸透し、そこにアルカリ性物質を形成させ、
それによって剥離現象を発生させることが考えられる。The cause is that electrolyte components in the antifreeze penetrate the surface of the stainless steel plate and form alkaline substances there.
It is conceivable that this causes a peeling phenomenon.
本発明は、不凍液に対して接着耐久性のあるシリンダー
へラドガスケット層積層板を提供することを目的として
いる。The present invention aims to provide a rad gasket layer laminate for cylinders that has antifreeze adhesive durability.
かかる本発明の目的は、ステンレス鋼板上にゴム層を設
けた積層板において、表面に亜鉛メッキ層およびリン酸
亜鉛の結晶性被膜を順次形成せしめたステンレス鋼板を
用いることにより達成される。This object of the present invention can be achieved by using a stainless steel plate in which a galvanized layer and a crystalline zinc phosphate film are sequentially formed on the surface of a laminated plate in which a rubber layer is provided on a stainless steel plate.
５ＵＳ３０１を始め、Ｃｒ、 Ｎｉ、 Ｍｏを含む任意
の合金からなるステンレス鋼板の表面にまず形成される
亜鉛メッキ層は、一般に通常の電解メッキ法により、約
１〜１０μｍの厚さで形成せしめる。これ以下の厚みで
は、リン酸亜鉛の結晶性被膜層の密着性が低下し、一方
これ以上の厚みでメッキ層を形成させると、鋼板とリン
酸亜鉛の結晶性被膜との間に亜鉛メッキ層が単独で残り
、不凍液浸漬後に亜鉛メッキ層の溶解による剥離発生の
原因となる。A galvanized layer, which is first formed on the surface of a stainless steel plate made of any alloy containing Cr, Ni, and Mo, including 5US301, is generally formed to a thickness of about 1 to 10 μm by a normal electrolytic plating method. If the thickness is less than this, the adhesion of the zinc phosphate crystalline coating layer will decrease, while if the plating layer is formed with a thickness greater than this, a galvanized layer will be formed between the steel sheet and the zinc phosphate crystalline coating. remains alone and causes peeling due to dissolution of the galvanized layer after immersion in antifreeze solution.
亜鉛メッキ層上には、リン酸亜鉛の結晶性被膜が形成さ
れ、メッキ層を含めた被膜の大部分がリン酸亜鉛の結晶
となり、亜鉛層としては殆んど存在しない状態となる。A crystalline film of zinc phosphate is formed on the galvanized layer, and most of the film including the plating layer becomes a crystal of zinc phosphate, and almost no zinc layer exists.
かかる状態をもたらす結晶性被膜の形成は、一般にリン
酸亜鉛の化成被膜処理法により行われ、そこに厚さ約１
〜５μｍの被膜を形成させる。これ以下の厚みでは接着
力に乏しく、一方これ以上の厚みの被膜を形成させると
、曲げ加工時に剥離を発生させるようになる。The formation of a crystalline film that results in such a state is generally carried out by a zinc phosphate conversion coating process, in which a thickness of about 1
A film of ~5 μm is formed. If the thickness is less than this, the adhesive strength will be poor, while if the coating is formed thicker than this, peeling will occur during bending.
このようにして表面に亜鉛メッキ層およびリン酸亜鉛の
結晶性被膜を順次形成させたステンレス鋼板上には、従
来技術−にならって、接着剤層を介してゴム層が設けら
れる。接着剤としては、フェノール樹脂系、有機シラン
系、塩素含有ゴム系など、従来ステンレス鋼板とゴムと
の接着に用いられていた任意の公知接着剤を用いること
ができる。A rubber layer is provided via an adhesive layer on the stainless steel plate on which a galvanized layer and a crystalline zinc phosphate coating have been sequentially formed on the surface in accordance with the prior art. As the adhesive, any known adhesive that has been conventionally used for adhering stainless steel plates and rubber, such as phenol resin type, organic silane type, chlorine-containing rubber type, etc., can be used.
また、ゴム材料としては、不凍液に対し耐性のあるもの
であれば任意のものを用いることができるが、一般には
フッ素ゴム、ニトリルゴム、水素化ニトリルゴム、エチ
レン・プロピレンゴムなどが、厚さ約１０〜１５０μｍ
、好ましくは約２０〜１２０μ纏のゴム層を形成させる
ために用いられる。Any rubber material can be used as long as it is resistant to antifreeze, but generally fluororubber, nitrile rubber, hydrogenated nitrile rubber, ethylene/propylene rubber, etc. 10-150μm
, preferably used to form a rubber layer with a thickness of about 20 to 120 μm.
本発明により、車両などのシリンダーヘッド用ガスケッ
トとしてエンジン冷却水（不凍液）に対しての接着耐久
性のあるものが提供される。According to the present invention, a gasket for a cylinder head of a vehicle or the like is provided that has durability in adhesion to engine cooling water (antifreeze).
次に、実施例について本発明の詳細な説明する。 Next, the present invention will be described in detail with reference to examples.
実施例１
ステンレス鋼板（ＳＵＳ３０１）の表面に、電解メッキ
法による亜鉛メッキ層（厚さ１．５μｍ）および化成被
膜処理法によるリン酸亜鉛の結晶性被膜（厚さ１．５μ
ｍ）を順次形成させた後、そこに接着剤（東洋化学研究
所製品メタロツクＰＡ）を塗布し、次いで下記配合処方
のニトリルゴム配合物をコーティングし、厚さ約１００
μｍのゴム層を形成させる。このゴム層は、１８０℃、
５０Ｋｇ／ ｃｘｊ、５分間の条件下で加圧加硫された
。Example 1 A zinc plating layer (thickness 1.5 μm) was formed by electroplating on the surface of a stainless steel plate (SUS301) and a crystalline zinc phosphate coating (thickness 1.5 μm) was formed by chemical conversion coating.
After sequentially forming m), an adhesive (Metalloc PA manufactured by Toyo Kagaku Institute) was applied thereto, and then a nitrile rubber compound having the following formulation was coated to a thickness of approximately 100 mm.
A rubber layer of μm is formed. This rubber layer is heated at 180°C.
Pressure vulcanization was carried out under conditions of 50 kg/cxj for 5 minutes.
にトリルゴム配合物）
ニトリルゴム（日本ゼオン製品二ボールＤＮ３０２）
１００重量部ＳＲＦカーボンブラック
６゜酸化亜鉛
５ジオクチルアジペート
１０老化防止剤（フェニルβ−ナフ
チルアミン縮金物） ２ステアリン酸
１イオウ
０．５テトラメチルチウラムジス
ルフイド ２このようにして得られた積
層板を、１００％または８０％濃度の不凍液（トヨタ純
正ロングライフクーラント）中に１３０℃テア２時間浸
漬した後、ＪＩＳ Ｋ−６８９４による描画テストを行
なったところ、その評価はいずれも５であった。Nitrile rubber (Nippon Zeon product 2-ball DN302)
100 parts by weight SRF carbon black
6゜Zinc oxide
5 dioctyl adipate
10 Anti-aging agent (phenyl β-naphthylamine condensate) 2 Stearic acid
1 sulfur
0.5 Tetramethylthiuram disulfide 2 The thus obtained laminate was immersed in 100% or 80% concentration antifreeze (Toyota genuine long life coolant) at 130°C for 2 hours, and then subjected to JIS K- When a drawing test was conducted using 6894, the evaluation was 5 in all cases.
比較例１
実施例１において、リン酸亜鉛の結晶性被膜を形成させ
ない積層板について、１００％または３０％濃度の不凍
液浸漬を行ない、描画テストすると、その評価はいずれ
も１であった。Comparative Example 1 In Example 1, the laminate in which the zinc phosphate crystalline film was not formed was immersed in 100% or 30% antifreeze solution and subjected to a drawing test, and the evaluation was 1 in all cases.
比較例２
実施例１において、亜鉛メッキ層を形成させることなく
リン酸亜鉛の結晶性被膜の形成を試みたが、被膜は形成
されなかった。Comparative Example 2 In Example 1, an attempt was made to form a crystalline film of zinc phosphate without forming a galvanized layer, but no film was formed.
比較例３
実施例１において、亜鉛メッキ層およびリン酸亜鉛の結
晶性被膜を形成させる代りに、ワイヤブラシ（ヘアライ
ン）によるブラシ処理で得られた積層板について不凍液
浸漬後の描画テストを行なうと、その評価はいずれもｌ
であった。Comparative Example 3 In Example 1, instead of forming a galvanized layer and a crystalline film of zinc phosphate, a drawing test was conducted on a laminate obtained by brushing with a wire brush (hairline) after immersion in an antifreeze solution. Both evaluations are l
Met.
実施例２
実施例１において、ニトリルゴムの代りに下記配合処方
のフッ素ゴム配合物を用いたが（ただし。Example 2 In Example 1, a fluororubber compound having the following formulation was used instead of nitrile rubber (but the following.
加硫時間を６分間に変更）、同様の結果が得られた。Similar results were obtained when the vulcanization time was changed to 6 minutes).
（フッ素ゴム配合物）
フッ素ゴム（デュポン社製品パイトンＥ４３０）
１００重量部阿Ｔカーボンブラック
６０酸化マグネシウム
３水酸化カルシウム
６比較例４
比較例３において、ニトリルゴム配合物の代りに実施例
２のフッ素ゴム配合物を用いたが、結果は同様であった
。(Fluororubber compound) Fluororubber (DuPont product Piton E430)
100 parts by weight AT carbon black
60 magnesium oxide
Calcium trihydroxide
6 Comparative Example 4 In Comparative Example 3, the fluororubber blend of Example 2 was used instead of the nitrile rubber blend, but the results were similar.
Claims (1)
、表面に亜鉛メッキ層およびリン酸亜鉛の結晶性被膜を
順次形成せしめたステンレス鋼板が用いられたシリンダ
ーヘッドガスケット用積層板。1. A laminate for a cylinder head gasket, which uses a laminate in which a rubber layer is provided on a stainless steel plate, and a stainless steel plate is sequentially formed with a zinc plating layer and a crystalline coating of zinc phosphate on the surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2757988A JPH01203763A (en) | 1988-02-10 | 1988-02-10 | Laminated plate for cylinder head gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2757988A JPH01203763A (en) | 1988-02-10 | 1988-02-10 | Laminated plate for cylinder head gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01203763A true JPH01203763A (en) | 1989-08-16 |
Family
ID=12224886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2757988A Pending JPH01203763A (en) | 1988-02-10 | 1988-02-10 | Laminated plate for cylinder head gasket |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01203763A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0449268A2 (en) * | 1990-03-26 | 1991-10-02 | Nisshin Steel Co., Ltd. | Material for expanded graphite gasket |
| US5519425A (en) * | 1993-11-15 | 1996-05-21 | Xerox Corporation | Ink supply cartridge for an ink jet printer |
| JP2004125174A (en) * | 2002-09-13 | 2004-04-22 | Nichias Corp | Material for gasket |
| US7044098B2 (en) * | 2004-03-24 | 2006-05-16 | Honda Motor Co., Ltd. | Gasket for water-cooled engine for outboard motor |
-
1988
- 1988-02-10 JP JP2757988A patent/JPH01203763A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0449268A2 (en) * | 1990-03-26 | 1991-10-02 | Nisshin Steel Co., Ltd. | Material for expanded graphite gasket |
| US5519425A (en) * | 1993-11-15 | 1996-05-21 | Xerox Corporation | Ink supply cartridge for an ink jet printer |
| JP2004125174A (en) * | 2002-09-13 | 2004-04-22 | Nichias Corp | Material for gasket |
| JP4566535B2 (en) * | 2002-09-13 | 2010-10-20 | ニチアス株式会社 | Gasket material |
| US7044098B2 (en) * | 2004-03-24 | 2006-05-16 | Honda Motor Co., Ltd. | Gasket for water-cooled engine for outboard motor |
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