JPH11181402A - Composite material sheet and gasket - Google Patents
Composite material sheet and gasketInfo
- Publication number
- JPH11181402A JPH11181402A JP35712697A JP35712697A JPH11181402A JP H11181402 A JPH11181402 A JP H11181402A JP 35712697 A JP35712697 A JP 35712697A JP 35712697 A JP35712697 A JP 35712697A JP H11181402 A JPH11181402 A JP H11181402A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- gasket
- composite material
- core plate
- reinforcing core
- 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
- 239000002131 composite material Substances 0.000 title claims abstract description 41
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 25
- 239000010439 graphite Substances 0.000 claims abstract description 25
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 239000003566 sealing material Substances 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 238000007789 sealing Methods 0.000 abstract description 25
- 229910000831 Steel Inorganic materials 0.000 abstract description 19
- 239000000463 material Substances 0.000 abstract description 16
- 239000010959 steel Substances 0.000 abstract description 15
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 15
- 229920001971 elastomer Polymers 0.000 description 9
- 239000000853 adhesive Substances 0.000 description 8
- 230000001070 adhesive effect Effects 0.000 description 8
- 229910001335 Galvanized steel Inorganic materials 0.000 description 7
- 239000008397 galvanized steel Substances 0.000 description 7
- 239000010425 asbestos Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000005011 phenolic resin Substances 0.000 description 5
- 229910052895 riebeckite Inorganic materials 0.000 description 5
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 229920001568 phenolic resin Polymers 0.000 description 4
- 238000000137 annealing Methods 0.000 description 3
- 230000002528 anti-freeze Effects 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000011256 inorganic filler Substances 0.000 description 2
- 229910003475 inorganic filler Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000012766 organic filler Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010073 coating (rubber) Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- -1 natural graphite Chemical compound 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 235000011835 quiches Nutrition 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Landscapes
- Gasket Seals (AREA)
- Laminated Bodies (AREA)
- Sealing Material Composition (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ガスケット材料又
はパッキン材料として、好適なシート状複合材料及び該
シート状複合材料を用いたガスケットに関する。さらに
詳しくは、内燃機関のシリンダヘッド用ガスケット材
料、内燃機関のオイルまわり、水まわり、吸気系、排気
系等の各接合部をシールするために使用するガスケット
材料、バルブ、ポンプ、配管継手等に用いられるパッキ
ン材料などに好適なシート状複合材料及び該シート状複
合材料を用いたガスケットに関する。The present invention relates to a sheet-like composite material suitable as a gasket material or a packing material, and a gasket using the sheet-like composite material. More specifically, gasket materials for cylinder heads of internal combustion engines, gasket materials used to seal various joints such as around oil and water, intake systems, exhaust systems, etc., valves, pumps, pipe joints, etc. The present invention relates to a sheet-like composite material suitable for a packing material to be used and a gasket using the sheet-like composite material.
【０００２】[0002]
【従来の技術】従来のガスケット材料には、ＪＩＳ−Ｒ
−３４５３、ＪＩＳ−７Ｓ−４０などに示されるように
アスベストを主に使用したアスベストジョイントシート
等や、アスベストと補強芯板を複合化した材料等が使用
されていた。しかし、アスベストは人体への悪影響が叫
ばれており、その使用には、問題がある。そこで、アス
ベストを使用しないガスケット材料として、ニチアス技
術時報、No.２４１、１９８６年３月発行に示されるよ
うに有機質及び無機質充填剤を例えばゴムなどの有機系
結着剤と混練し、シート状にしたジョイントシートや、
特開平２−３８７６０号公報及び特開平３−２２９０６
９号公報等に示されるように、ステンレス鋼板、普通鋼
板等の金属板等の表面にゴム層をコーティングしたいわ
ゆる金属ガスケット材料が使用されている。しかしなが
ら、有機質及び無機質充填剤をゴムなどの有機系結着剤
と混練してシート状にしたジョイントシートは、耐熱温
度が低く、かつ引っ張り強度が１４．７MPa（１５０kgf
/cm2）程度で弱いため、高温及び高荷重付加部位には使
用が困難である。2. Description of the Related Art Conventional gasket materials include JIS-R
As shown in JP-3453, JIS-7S-40, etc., an asbestos joint sheet mainly using asbestos, a material in which asbestos and a reinforcing core plate are combined, and the like have been used. However, asbestos is harmed to the human body and its use is problematic. Therefore, as a gasket material that does not use asbestos, organic and inorganic fillers are kneaded with an organic binder such as rubber, for example, as shown in Nichias Technical Report, No. 241, published in March 1986, to form a sheet. Joint sheets,
JP-A-2-38760 and JP-A-3-22906
As shown in Japanese Patent Application Publication No. 9-1997, a so-called metal gasket material is used in which a rubber layer is coated on the surface of a metal plate such as a stainless steel plate or a normal steel plate. However, a joint sheet in which an organic and inorganic filler is kneaded with an organic binder such as rubber to form a sheet has a low heat-resistant temperature and a tensile strength of 14.7 MPa (150 kgf).
/ cm 2 ), which makes it difficult to use in high temperature and high load application areas.
【０００３】また、鋼板の表面にゴム層をコーティング
した金属ガスケット材料は、ゴムの被覆厚さが５〜３０
μｍと薄いため接合部に付着した１０μｍ以上の傷をシ
ールすることが難しく、さらに変形し易い低剛性フラン
ジを使用した場合シール性は急激に低下する。また、ゴ
ムは、耐熱温度が通常１５０℃と低いため、高温で長時
間使用される部位のガスケットではゴム層が劣化して寿
命が短くなり、長時間使用できないという問題がある。
そこで金属ガスケットは一般に、そのシール性を向上さ
せるためにシール部位に沿ってビード（凹凸）加工を施
し、このビード圧縮復元力でシール性を確保して使用さ
れる。しかしながら、近年は、機器の軽量化、小型化に
伴い、ガスケットのシール幅の幅狭化を図る必要があ
り、このように、ガスケットのシール幅が狭い場合は、
金属ガスケットは、ビード加工を施すことが困難である
ためシール性能が低下するばかりでなく取り扱い性が低
下する。そこで、ガスケットのシール幅が狭い場合にお
いても、シール性、強度、耐熱性に優れたガスケットが
要求されている。A metal gasket material in which a rubber layer is coated on the surface of a steel plate has a rubber coating thickness of 5 to 30.
Since it is as thin as μm, it is difficult to seal a flaw of 10 μm or more attached to the joint, and when a low-rigidity flange that is easily deformed is used, the sealing performance is rapidly reduced. Further, since the heat resistance temperature of rubber is usually as low as 150 ° C., there is a problem that the rubber layer is deteriorated in a gasket at a portion where it is used for a long time at a high temperature, the life is shortened, and it cannot be used for a long time.
Therefore, a metal gasket is generally used by performing a bead (irregularity) process along a sealing portion in order to improve the sealing property and securing the sealing property by the bead compression restoring force. However, in recent years, as the weight and size of the equipment have been reduced, it is necessary to reduce the seal width of the gasket. Thus, when the seal width of the gasket is small,
The metal gasket is difficult to beaded, so that not only the sealing performance is reduced but also the handleability is reduced. Therefore, even when the seal width of the gasket is narrow, a gasket excellent in sealability, strength, and heat resistance is required.
【０００４】[0004]
【発明が解決しようとする課題】請求項１記載の発明
は、シール性に優れ、ガスケット、パッキン等として用
いることができるシート状複合材料を提供するものであ
る。請求項２及び３記載の発明は、請求項１記載の発明
の課題に加え、より顕著なシール性を示し、高強度であ
るシート状複合材料を提供するものである。請求項４記
載の発明は、請求項１記載の発明の課題に加えて、特に
耐熱性及びより顕著にシール性に優れるシート状複合材
料を提供するものである。請求項５記載の発明は、耐熱
性及びシール性に優れ、かつ高強度なガスケットを提供
するものである。The object of the present invention is to provide a sheet-like composite material which has excellent sealing properties and can be used as a gasket, packing or the like. The inventions according to claims 2 and 3 provide a sheet-like composite material which exhibits more remarkable sealing properties and has high strength, in addition to the objects of the invention described in claim 1. A fourth aspect of the present invention provides a sheet-like composite material having excellent heat resistance and more remarkably excellent sealing properties, in addition to the objects of the first aspect of the present invention. The invention described in claim 5 is to provide a gasket which is excellent in heat resistance and sealability and has high strength.
【０００５】[0005]
【課題を解決するための手段】本発明は、伸び率が１５
％以下である鉄製の補強芯板の層とシール材の層を有し
てなるシート状複合材料に関する。また本発明は、前記
補強芯板の引っ張り強度が５００N/mm2以上であるシー
ト状複合材料に関する。また本発明は、前記補強芯板の
板厚が０．１〜０．３mmであるシート状複合材料に関す
る。また本発明は、前記シール材の層が膨張黒鉛を含む
シート状複合材料に関する。さらに本発明は、前記シー
ト状複合材料を用いてなるガスケットに関する。According to the present invention, an elongation percentage is 15%.
The present invention relates to a sheet-like composite material having a layer of a reinforcing core plate made of iron and a layer of a sealing material at a ratio of not more than 10%. The present invention also relates to a sheet-like composite material in which the reinforcing core plate has a tensile strength of 500 N / mm 2 or more. The present invention also relates to a sheet-like composite material in which the reinforcing core plate has a thickness of 0.1 to 0.3 mm. The present invention also relates to a sheet-like composite material in which the layer of the sealing material contains expanded graphite. Further, the present invention relates to a gasket using the sheet-like composite material.
【０００６】[0006]
【発明の実施の形態】本発明のシート状複合材料は、補
強芯板の層とシール材の層を有するが、本発明で使用す
る補強芯板は、シール性の点で、伸び率が１５％以下で
あることが必要とされ、１０％以下であることが好まし
く、５％以下であればより好ましい。伸び率が１５％を
超えると作製するガスケットのシール性が低下し、ま
た、バリが生じ易くなる。なお、伸び率はＪＩＳ Ｚ
２２０１ ５号試験片を引っ張り試験機で破断するまで
引っ張り、（試験後の伸び量／試験前の試験片の長さ）
×１００（％）として求めることができる。BEST MODE FOR CARRYING OUT THE INVENTION The sheet-like composite material of the present invention has a reinforcing core plate layer and a sealing material layer. The reinforcing core plate used in the present invention has an elongation of 15% in terms of sealing properties. % Or less, preferably 10% or less, more preferably 5% or less. If the elongation exceeds 15%, the sealing properties of the gasket to be produced are reduced, and burrs are easily generated. The elongation is JIS Z
22015 No. 5 test piece was pulled by a tensile tester until it was broken, and (elongation after test / length of test piece before test)
× 100 (%).
【０００７】また、前記補強芯板は、より顕著なシール
性及び強度の点で、引っ張り強度が５００N/mm2以上で
あることが好ましく、６００N/mm2以上であればより好
ましく、７００N/mm2以上であればさらに好ましい。引
っ張り強度が５００N/mm2未満では、作製するガスケッ
トの強度が低下する傾向にあるとともに、作製するガス
ケットの取り扱い性が低下するする傾向にある。また、
引っ張り強度は、加工性の点で２０００N/mm2以下が好
ましい。なお、引っ張り強度は、ＪＩＳ Ｚ ２２０１
５号試験片を引っ張り試験機で引っ張り、破断する強
度を測定することにより測定することができる。The reinforcing core plate preferably has a tensile strength of 500 N / mm 2 or more, more preferably 600 N / mm 2 or more, and more preferably 700 N / mm 2 in terms of more remarkable sealing properties and strength. More preferably, it is 2 or more. If the tensile strength is less than 500 N / mm 2 , the strength of the produced gasket tends to decrease, and the handleability of the produced gasket tends to decrease. Also,
The tensile strength is preferably 2000 N / mm 2 or less from the viewpoint of workability. The tensile strength was measured in accordance with JIS Z 2201
It can be measured by pulling the No. 5 test piece with a tensile tester and measuring the breaking strength.
【０００８】また、使用する補強芯板の材質は鉄板であ
ることが、良好な引っ張り強度、伸び率及びシール特性
の点で必要である。本発明のシート状複合材料における
補強芯板の板厚は０．１〜０．３mmの範囲が好ましい。
使用する鋼板の板厚が０．１mm未満では、作製するガス
ケットの強度が低下し、０．３mmを超えると加工性が低
下する傾向にある。Further, it is necessary that the material of the reinforcing core plate to be used is an iron plate in terms of good tensile strength, elongation and sealing properties. The thickness of the reinforcing core plate in the sheet composite material of the present invention is preferably in the range of 0.1 to 0.3 mm.
If the thickness of the steel sheet used is less than 0.1 mm, the strength of the gasket to be produced tends to decrease, and if it exceeds 0.3 mm, the workability tends to decrease.
【０００９】このような特性を有する補強芯板は、普通
鋼板を圧延加工することによって作製できる。また、必
要に応じてさらに焼鈍加工することができる。一般に普
通鋼板は、焼鈍加工することで、鋼板の結晶が再結晶化
し、引っ張り強度が小さくなり、また伸び率が大きくな
る。従って、引っ張り強度及び伸び率は、焼鈍加工の条
件によって調整することができる。A reinforcing core plate having such characteristics can be produced by rolling a normal steel plate. Further, if necessary, further annealing can be performed. Generally, by annealing an ordinary steel sheet, the crystal of the steel sheet is recrystallized, the tensile strength is reduced, and the elongation is increased. Therefore, the tensile strength and the elongation can be adjusted according to the annealing conditions.
【００１０】また、本発明で使用する補強芯板は、防食
の点でメッキ処理を施していることが好ましい。メッキ
の種類としては特に制限はないが、例えば亜鉛、ニッケ
ル等の溶融メッキ、電気メッキがあげられる。上記の鋼
板の少なくとも片面、好ましくは両面にシール材の層を
積層することで、本発明のシート状複合材料を作製する
ことができる。本発明で使用するシール材は、シール性
を有する材料であれば特に制限はなく、例えばフッ素ゴ
ム、ニトリルゴム、シリコンゴム等を含むゴム材、粒
状、繊維状等の充填材、有機系結着剤等からなるジョイ
ントシート、無機質シート、膨張黒鉛シートなどが使用
できるが、作製するガスケットの耐熱性及びシール性の
点で膨張黒鉛シートを使用することが好ましい。[0010] The reinforcing core plate used in the present invention is preferably subjected to plating to prevent corrosion. The type of plating is not particularly limited, and examples thereof include hot-dip plating of zinc, nickel or the like, and electroplating. The sheet-like composite material of the present invention can be produced by laminating a layer of the sealing material on at least one side, preferably both sides, of the above steel sheet. The sealing material used in the present invention is not particularly limited as long as it is a material having a sealing property. For example, a rubber material including fluorine rubber, nitrile rubber, silicon rubber, a filler such as granular or fibrous, and an organic binder Although a joint sheet made of an agent or the like, an inorganic sheet, an expanded graphite sheet and the like can be used, it is preferable to use an expanded graphite sheet in terms of heat resistance and sealing properties of a gasket to be produced.
【００１１】膨張黒鉛シートは、公知の製法で作製した
ものを使用することができる。例えば、天然黒鉛、キッ
シュ黒鉛、熱分解黒鉛等の高度に結晶が発達した黒鉛
を、濃硫酸と硝酸との混液、濃硫酸と過酸化水素水との
混液等の強酸化性の溶液に浸漬処理して黒鉛層間化合物
を生成させ、水洗してから急速加熱して、黒鉛結晶のｃ
軸方向を膨張処理した虫状形で圧縮特性を有する黒鉛を
冷間加工したシートが用いられる。As the expanded graphite sheet, a sheet produced by a known production method can be used. For example, highly crystallized graphite such as natural graphite, quiche graphite, and pyrolytic graphite is immersed in a strongly oxidizing solution such as a mixture of concentrated sulfuric acid and nitric acid, or a mixture of concentrated sulfuric acid and hydrogen peroxide. To form a graphite intercalation compound, rinse with water, and then rapidly heat to obtain graphite crystal c.
A sheet obtained by cold-working graphite having compressive properties in an insect shape in which the axial direction is expanded is used.
【００１２】補強芯板へのシール材の積層は、特に制限
はないが、例えば接着剤を介してロールまたはプレス等
で行うことができる。使用する接着剤は特に制限はな
く、例えば、フェノール樹脂、エポキシ樹脂等の熱硬化
性樹脂を主成分としたものが、耐熱性の点で好ましい。The lamination of the sealing material on the reinforcing core plate is not particularly limited, but can be performed by, for example, a roll or a press via an adhesive. The adhesive to be used is not particularly limited, and for example, an adhesive containing a thermosetting resin such as a phenol resin and an epoxy resin as a main component is preferable in terms of heat resistance.
【００１３】シート状複合材料のシール材の層の厚さは
特に制限はないが、シール性の点で０．０３〜０．５mm
であることが好ましい。また補強芯板とシール材を含む
シート状複合材料の厚さとしては特に制限はないが、シ
ール性及び加工性の点から、０．１３〜１．３mmである
ことが好ましい。本発明のガスケットは、上記の如く作
製したシート状複合材料を、所定形状に加工することで
得ることができる。加工法としては特に制限はなく、打
ち抜き加工等の方法が用いられる。こうして得られるガ
スケットは、シール性、耐熱性に優れ、かつ高強度であ
る。The thickness of the sealing material layer of the sheet-like composite material is not particularly limited.
It is preferred that The thickness of the sheet-like composite material including the reinforcing core plate and the sealing material is not particularly limited, but is preferably 0.13 to 1.3 mm from the viewpoint of sealing properties and workability. The gasket of the present invention can be obtained by processing the sheet-like composite material produced as described above into a predetermined shape. There is no particular limitation on the processing method, and a method such as punching is used. The gasket thus obtained has excellent sealing properties and heat resistance, and has high strength.
【００１４】[0014]
【実施例】次に本発明の実施例を説明する。 実施例１ 引っ張り強度が７５０N/mm2、伸び率が２％、厚みが
０．１３mmの溶融亜鉛メッキ鋼板（川鉄鋼板(株)製ＳＧ
ＣＨ）の両面にメチルエチルケトンに溶かしたフェノー
ル樹脂接着剤（セメダイン(株)製セメダイン＃１１０）
を塗布し、８０℃の乾燥機中で１分放置し、メチルメチ
ルケトンを乾燥除去した。次いでこの鋼板の両側に厚さ
０．２mmの膨張黒鉛シート（日立化成工業(株)製、登録
商標名カーボフィット）を積層し、熱プレスを使用し
て、温度１８０℃，圧力３０kgf/cm2の条件で鋼板と膨
張黒鉛シートを接着した。さらにロールを通し、接着後
の全板厚０．４５mm、膨張黒鉛シート層の密度を１．０
g/cm3のシート状複合材料を作製した。図１は得られた
シート状複合材料の断面図であり、１は亜鉛メッキ鋼
板、２は膨張黒鉛シート層である。このシート状複合材
料を外径が５０mm及び内径が４４mm（シール幅３mm）に
打ち抜いてガスケットを得た。Next, embodiments of the present invention will be described. Example 1 A hot-dip galvanized steel sheet having a tensile strength of 750 N / mm 2 , an elongation of 2%, and a thickness of 0.13 mm (SG manufactured by Kawa Iron Steel Co., Ltd.)
CH), a phenolic resin adhesive dissolved in methyl ethyl ketone (Cemedine # 110 manufactured by Cemedine Co., Ltd.)
And left in a dryer at 80 ° C. for 1 minute to dry and remove methyl methyl ketone. Then, on both sides of the steel sheet, an expanded graphite sheet having a thickness of 0.2 mm (trade name: Carbofit, manufactured by Hitachi Chemical Co., Ltd.) is laminated, and using a hot press, at a temperature of 180 ° C. and a pressure of 30 kgf / cm 2. The steel sheet and the expanded graphite sheet were bonded under the following conditions. Further, through a roll, the total thickness of the bonded graphite sheet is 0.45 mm, and the density of the expanded graphite sheet layer is 1.0.
A sheet-like composite material of g / cm 3 was produced. FIG. 1 is a cross-sectional view of the obtained sheet-like composite material, wherein 1 is a galvanized steel sheet, and 2 is an expanded graphite sheet layer. This sheet-shaped composite material was punched into an outer diameter of 50 mm and an inner diameter of 44 mm (seal width 3 mm) to obtain a gasket.
【００１５】実施例２ 引っ張り強度が５５０N/mm2、伸び率が１２％、厚みが
０．１３mmの溶融亜鉛メッキ鋼板（川鉄鋼板(株)製ＳＧ
ＣＨ）の両面にメチルエチルケトンに溶かしたフェノー
ル樹脂接着剤（セメダイン(株)製，セメダイン＃１１
０）を塗布し、８０℃の乾燥機中で１分放置し、メチル
メチルケトンを乾燥除去した。次いでこの鋼板の両側に
厚さ０．２mmの膨張黒鉛シート（日立化成工業(株)製、
登録商標名カーボフィット）を積層し、熱プレスを使用
して、温度１８０℃、圧力３０kgf/cm2の条件で鋼板と
膨張黒鉛シートを接着した。さらにロールを通し、接着
後の全板厚０．４５mm、膨張黒鉛シート層の密度を１．
０g/cm3のシート状複合材料を作製した。このシート状
複合材料を外径が５０mm及び内径が４４mm（シール幅３
mm）に打ち抜いてガスケットを得た。Example 2 A hot-dip galvanized steel sheet having a tensile strength of 550 N / mm 2 , an elongation of 12% and a thickness of 0.13 mm (SG manufactured by Kawa Iron Steel Co., Ltd.)
CH), a phenolic resin adhesive dissolved in methyl ethyl ketone (Cemedine # 11, manufactured by Cemedine Co., Ltd.)
0) was applied, and the mixture was allowed to stand in a dryer at 80 ° C. for 1 minute to dry and remove methyl methyl ketone. Next, on both sides of this steel sheet, an expanded graphite sheet having a thickness of 0.2 mm (manufactured by Hitachi Chemical Co., Ltd.,
(Registered trademark Carbofit) was laminated, and the steel sheet and the expanded graphite sheet were bonded together using a hot press under the conditions of a temperature of 180 ° C. and a pressure of 30 kgf / cm 2 . Further, through a roll, the total thickness of the bonded sheet is 0.45 mm and the density of the expanded graphite sheet layer is 1.
A sheet-like composite material of 0 g / cm 3 was produced. This sheet-shaped composite material has an outer diameter of 50 mm and an inner diameter of 44 mm (seal width 3).
mm) to obtain a gasket.
【００１６】比較例１ 引っ張り強度が３６０N/mm2、伸び率が２５％、厚みが
０．１３mmの溶融亜鉛メッキ鋼板（川鉄鋼板(株)製ＳＧ
ＣＣ）の両面にメチルエチルケトンに溶かしたフェノー
ル樹脂接着剤（セメダイン(株)製、セメダイン＃１１
０）を塗布し、８０℃の乾燥機中で１分放置し、メチル
メチルケトンを乾燥除去した。次いでこの鋼板の両側に
厚さ０．２mmの膨張黒鉛シート（日立化成工業(株)製、
登録商標名カーボフィット）を積層し、熱プレスを使用
して、温度１８０℃、圧力３０kgf/cm2の条件で鋼板と
膨張黒鉛シートを接着した。さらにロールを通し、接着
後の全板厚０．４５mm、膨張黒鉛シート層の密度を１．
０g/cm3のシート状複合材料を作製した。図１は得られ
たシート状複合材料の断面図であり、１は亜鉛メッキ鋼
板、２は膨張黒鉛シート層、３は接着剤である。このシ
ート状複合材料を外径が５０mm及び内径が４４mmに打ち
抜いてガスケットを得た。Comparative Example 1 A hot-dip galvanized steel sheet having a tensile strength of 360 N / mm 2 , an elongation of 25%, and a thickness of 0.13 mm (SG manufactured by Kawa Iron Steel Co., Ltd.)
CC), a phenolic resin adhesive dissolved in methyl ethyl ketone (Cemedine # 11, manufactured by Cemedine Co., Ltd.)
0) was applied, and the mixture was allowed to stand in a dryer at 80 ° C. for 1 minute to dry and remove methyl methyl ketone. Next, on both sides of this steel sheet, an expanded graphite sheet having a thickness of 0.2 mm (manufactured by Hitachi Chemical Co., Ltd.,
(Registered trademark Carbofit) was laminated, and the steel sheet and the expanded graphite sheet were bonded together using a hot press under the conditions of a temperature of 180 ° C. and a pressure of 30 kgf / cm 2 . Further, through a roll, the total thickness of the bonded sheet is 0.45 mm and the density of the expanded graphite sheet layer is 1.
A sheet-like composite material of 0 g / cm 3 was produced. FIG. 1 is a cross-sectional view of the obtained sheet-like composite material, wherein 1 is a galvanized steel sheet, 2 is an expanded graphite sheet layer, and 3 is an adhesive. This sheet-shaped composite material was punched into an outer diameter of 50 mm and an inner diameter of 44 mm to obtain a gasket.
【００１７】比較例２ 引っ張り強度が３６０N/mm2、伸び率が２５％、厚みが
０．１３mmの溶融亜鉛メッキ鋼板（川鉄鋼板(株)製ＳＧ
ＣＣ）の両面にメチルエチルケトンに溶かしたフェノー
ル樹脂接着剤（セメダイン(株)製、セメダイン＃１１
０）を塗布し、８０℃の乾燥機中で１分放置し、メチル
メチルケトンを乾燥除去した。次いで、この両面に、フ
ッ素ゴム（日本ゼオン(株)製、商品名ＮｉｐｐｏｌＣＭ
Ｆ７００）：硫黄粉末（細井化学(株)製、コロイド硫
黄）：メチルエチルケトン（和光純薬工業(株)製、試
薬）を１０：２：２０の重量比率で混合した溶液をコー
ティングし、６０℃で１０分熱処理した後、１６０℃で
２０分熱処理し、ゴムを加硫及び硬化させて、板厚０．
２３mmのシート状複合材料を得た。このシート状複合材
料を外径が５０mm及び内径が４４mmに打ち抜いてガスケ
ットを得た。Comparative Example 2 A hot-dip galvanized steel sheet having a tensile strength of 360 N / mm 2 , an elongation of 25%, and a thickness of 0.13 mm (SG manufactured by Kawa Iron Steel Co., Ltd.)
CC), a phenolic resin adhesive dissolved in methyl ethyl ketone (Cemedine # 11, manufactured by Cemedine Co., Ltd.)
0) was applied, and the mixture was allowed to stand in a dryer at 80 ° C. for 1 minute to dry and remove methyl methyl ketone. Then, on both sides, a fluororubber (trade name: Nippol CM, manufactured by Zeon Corporation)
F700): Sulfur powder (colloidal sulfur, manufactured by Hosoi Chemical Co., Ltd.): coated with a solution obtained by mixing methyl ethyl ketone (reagent, manufactured by Wako Pure Chemical Industries, Ltd.) at a weight ratio of 10: 2: 20, and heated at 60 ° C. After heat treatment for 10 minutes, heat treatment is performed at 160 ° C. for 20 minutes to cure and cure the rubber.
A 23 mm sheet composite was obtained. This sheet-shaped composite material was punched into an outer diameter of 50 mm and an inner diameter of 44 mm to obtain a gasket.
【００１８】次に、上記実施例及び比較例で得られたガ
スケットについて、ガスケットの外観、不凍液シール性
及びガスケット強度を評価した。不凍液性はガスケット
を面粗さ１０Ｓ及び厚み２５mmのアルミフランジに挟み
込み、３MPaの面圧で締め付け、不凍液に内圧をかけて
ゆき、漏れ発生の有無を確認した。ガスケット強度は、
得られたガスケットを面粗さ２０Ｓ及び厚み２５mmのア
ルミフランジに挟み込み、２０MPaの面圧で締め付けた
後、フランジを１８０℃／１時間及び−３０℃／１時間
のヒートサイクルを１０回繰り返した。その後フランジ
はずし、ガスケットの外観を目視で確認した。その結果
を表１に示す。Next, with respect to the gaskets obtained in the above Examples and Comparative Examples, the appearance of the gaskets, the antifreeze sealing property, and the strength of the gaskets were evaluated. The antifreeze property was determined by sandwiching the gasket between aluminum flanges having a surface roughness of 10S and a thickness of 25 mm and tightening with a surface pressure of 3 MPa, applying an internal pressure to the antifreeze, and checking for the occurrence of leakage. Gasket strength
The obtained gasket was sandwiched between aluminum flanges having a surface roughness of 20S and a thickness of 25 mm, and was tightened at a surface pressure of 20 MPa. Then, a heat cycle of 180 ° C./1 hour and -30 ° C./1 hour was repeated 10 times. Thereafter, the flange was removed, and the appearance of the gasket was visually checked. Table 1 shows the results.
【００１９】[0019]
【表１】 [Table 1]
【００２０】表１から明らかなように、比較例１及び比
較例２のガスケットは、シール性及びガスケット強度に
劣ることが示される。これに対して、実施例１、２のガ
スケットはシール性及びガスケット強度に優れることが
確認された。As is clear from Table 1, the gaskets of Comparative Examples 1 and 2 are inferior in sealability and gasket strength. On the other hand, it was confirmed that the gaskets of Examples 1 and 2 had excellent sealing properties and gasket strength.
【００２１】[0021]
【発明の効果】請求項１記載のシート状複合材料は、シ
ール性に優れるので、ガスケット、パッキン等として好
適である。請求項２記載のシート状複合材料は、請求項
１記載の発明の効果に加えて、シール性に顕著に優れ、
さらに高強度である。請求項３記載のシート状複合材料
は、請求項１記載の発明の効果に加えて、特に強度に優
れる。請求項４記載のシート状複合材料は、請求項１記
載の発明の効果に加えて、特に耐熱性及びシール性に優
れる。請求項５記載のガスケットは、耐熱性及びシール
性に優れ、かつ高強度であるので、内燃機関のシリンダ
ヘッド用ガスケット、内燃機関のオイルまわり、水まわ
り、吸気系、排気系等の各接合部をシールするために使
用するガスケットとして有用である。The sheet-like composite material according to the first aspect has excellent sealing properties and is therefore suitable as a gasket, packing or the like. The sheet-like composite material according to the second aspect has excellent sealing properties in addition to the effects of the first aspect,
Higher strength. The sheet-shaped composite material according to the third aspect is particularly excellent in strength in addition to the effect of the invention according to the first aspect. The sheet-like composite material according to the fourth aspect is particularly excellent in heat resistance and sealability in addition to the effects of the first aspect. Since the gasket according to claim 5 is excellent in heat resistance and sealing properties and has high strength, each joint portion of a gasket for a cylinder head of an internal combustion engine, around oil and water in an internal combustion engine, an intake system, an exhaust system, and the like. It is useful as a gasket used for sealing.
【図１】本発明の実施例になるシート状複合材料の断面
図である。FIG. 1 is a cross-sectional view of a sheet-like composite material according to an embodiment of the present invention.
１ 亜鉛メッキ鋼板 ２ 膨張黒鉛シート層 1 Galvanized steel sheet 2 Expanded graphite sheet layer
Claims (5)
板の層とシール材の層を有してなるシート状複合材料。1. A sheet-like composite material comprising an iron reinforcing core plate having an elongation of 15% or less and a sealing material layer.
以上である請求項１記載のシート状複合材料。2. The reinforcing core plate has a tensile strength of 500 N / mm 2.
The sheet-like composite material according to claim 1, which is as described above.
る請求項１又は２記載のシート状複合材料。3. The sheet-like composite material according to claim 1, wherein the thickness of the reinforcing core plate is 0.1 to 0.3 mm.
は２記載のシート状複合材料。4. The sheet-like composite material according to claim 1, wherein the sealing material layer contains expanded graphite.
複合材料を用いてなるガスケット。5. A gasket comprising the sheet-like composite material according to claim 1, 2, 3 or 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35712697A JPH11181402A (en) | 1997-12-25 | 1997-12-25 | Composite material sheet and gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35712697A JPH11181402A (en) | 1997-12-25 | 1997-12-25 | Composite material sheet and gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11181402A true JPH11181402A (en) | 1999-07-06 |
Family
ID=18452518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35712697A Pending JPH11181402A (en) | 1997-12-25 | 1997-12-25 | Composite material sheet and gasket |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11181402A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016170843A1 (en) * | 2015-04-20 | 2016-10-27 | 株式会社アスター | Illumination device |
-
1997
- 1997-12-25 JP JP35712697A patent/JPH11181402A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016170843A1 (en) * | 2015-04-20 | 2016-10-27 | 株式会社アスター | Illumination device |
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