JPS6396360A - Metallic gasket - Google Patents
Metallic gasketInfo
- Publication number
- JPS6396360A JPS6396360A JP24206586A JP24206586A JPS6396360A JP S6396360 A JPS6396360 A JP S6396360A JP 24206586 A JP24206586 A JP 24206586A JP 24206586 A JP24206586 A JP 24206586A JP S6396360 A JPS6396360 A JP S6396360A
- Authority
- JP
- Japan
- Prior art keywords
- aluminum
- thickness
- adherend
- metal gasket
- core material
- 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
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 27
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000011162 core material Substances 0.000 claims abstract description 14
- 238000007747 plating Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000007769 metal material Substances 0.000 claims abstract description 3
- 229910052751 metal Inorganic materials 0.000 claims description 33
- 239000002184 metal Substances 0.000 claims description 33
- 239000011324 bead Substances 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 abstract description 7
- 229910000975 Carbon steel Inorganic materials 0.000 abstract description 3
- 239000010962 carbon steel Substances 0.000 abstract description 3
- 230000004927 fusion Effects 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000000758 substrate Substances 0.000 description 16
- 238000010586 diagram Methods 0.000 description 13
- 238000010438 heat treatment Methods 0.000 description 5
- 229910000765 intermetallic Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 238000005496 tempering Methods 0.000 description 3
- 230000001464 adherent effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000005406 washing Methods 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、エンジン等のシール部に用いられて好適な金
属ガスケットに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a metal gasket suitable for use in a seal portion of an engine or the like.
［従来の技術］
従来、実開昭５９−１５２２４１１号公報に記載される
ように、鋼等の硬質金属からなる芯材の表面にアルミニ
ウムメッキを施してなる金属ガスケットがある。[Prior Art] As described in Japanese Utility Model Application Publication No. 59-1522411, there is a metal gasket in which the surface of a core material made of a hard metal such as steel is plated with aluminum.
［発明が解決しようとする問題点］
しかしながら、上記従来の金属ガスケットにあっては、
アルミニウムの厚みが最大で０．０２〜０．０３■■程
度しかない、このため、アルミニウムの厚みが過小であ
り、シリンダヘッド等の被シール部材表面の微細な凹凸
を必ずしも十分に吸収することができず、シール性能の
向上に限界がある。[Problems to be solved by the invention] However, in the above-mentioned conventional metal gasket,
The maximum thickness of aluminum is only about 0.02 to 0.03■■.For this reason, the thickness of aluminum is too small and cannot necessarily sufficiently absorb the minute irregularities on the surface of the sealed member such as the cylinder head. There is a limit to the improvement of sealing performance.
本発明は、芯材に被着されるアルミニウムの厚みを容易
に適正化し、シール性能を向上可能とすることを目的と
する。An object of the present invention is to easily optimize the thickness of aluminum coated on a core material and improve sealing performance.
［問題点を解決するための手段］
本発明は、金属材料からなる芯材の表面にアルミニウム
からなる被着材を添設してなる金属ガスケットにおいて
、該アルミニウムを溶融メッキ法によって０．０３〜０
．１５■箇の厚みで設けてなるようにしたものである。[Means for Solving the Problems] The present invention provides a metal gasket in which an adherend material made of aluminum is attached to the surface of a core material made of a metal material. 0
．． It is designed to have a thickness of 15 mm.
［作用］
本発明によれば、溶融メッキ法を用いることから、芯材
に被着されるアルミニウムの厚みを、容易に０．０３〜
０．１５ｍ１の適正範囲内で調節し、シール性能を向上
することができる。ここで、アルミニウムの厚みの下限
値を０．０３＋ｗ層未満とする場合には、第８図に示す
ように、被シール部材表面の微細な凹凸を十分に吸収す
ることができない、また、アルミニウムの厚みの上限値
を０．１５ｓ＋ｍより大とする場合には、第９図に示す
ように、一定の使用期間経過後にシール部のトルクダウ
ンを生じて安定した締付トルクを維持できない。[Function] According to the present invention, since the hot-dip plating method is used, the thickness of the aluminum coated on the core material can be easily reduced from 0.03 to 0.03.
The sealing performance can be improved by adjusting within the appropriate range of 0.15 m1. Here, if the lower limit of the aluminum thickness is less than 0.03+w layer, as shown in FIG. If the upper limit of the thickness is set to be greater than 0.15 s+m, as shown in FIG. 9, after a certain period of use, the torque of the seal portion decreases, making it impossible to maintain a stable tightening torque.
［実施例］
第１図は本発明の一実施例に係る金属ガスケットを示す
模式図、第２図は金属ガスケットを示す平面図、第３図
は第２図の■−■線に沿う断面図、第４図は金属ガスケ
ットの製造方法を示す模式図である。[Example] Fig. 1 is a schematic diagram showing a metal gasket according to an embodiment of the present invention, Fig. 2 is a plan view showing the metal gasket, and Fig. 3 is a sectional view taken along the line ■-■ in Fig. 2. , FIG. 4 is a schematic diagram showing a method of manufacturing a metal gasket.
金属ガスケット１０は、第１図に示すように。The metal gasket 10 is as shown in FIG.
炭素鋼もしくはステンレス鋼（ｓｕｓ ： ５ＵＳ３０
１．５ＵＳ３０４．５ＵＳ３１０等）等からなる基板（
芯材）１１の両表面に、アルミニウムからなる被着材１
２を添設してなるものであり、該アルミニウムを溶融メ
ッキ法によって０．０３〜０．１５ｍｍの厚みで設けて
いる。Carbon steel or stainless steel (sus: 5US30
1.5US304.5US310 etc.)
Adherent material 1 made of aluminum is placed on both surfaces of core material) 11.
2, and the aluminum is provided with a thickness of 0.03 to 0.15 mm by hot-dip plating.
なお、金属ガスケット１０は、第２図に示すように、燃
焼室孔２１．水孔２２、ボルト孔２３等を備え、不図示
のシリンダブロックとシリンダヘッドの接合面間に介在
して使用される。また、金属ガスケット１０は、被シー
ル領域相当部分としての番孔２１〜２３の周辺に対応す
る部分に、それぞれ線上に連続する凸状ビード部２４（
２４Ａ、２４Ｂ、２４Ｃ）を備えている（第３図）。Note that the metal gasket 10 has a combustion chamber hole 21. as shown in FIG. It is provided with a water hole 22, a bolt hole 23, etc., and is used by being interposed between a joint surface of a cylinder block (not shown) and a cylinder head. Further, the metal gasket 10 has convex bead portions 24 (
24A, 24B, 24C) (Fig. 3).
第４図は上記金属ガスケツ）１０の製造ラインを模式的
に示す配置図である。３１は基板１１のシートコイルで
あり、コイル３１から巻き出されるシート状の基板１１
は、水洗槽３２で水洗され、酸洗槽３３で３０％ ＨＣ
ｌ等によって酸洗され、フラックス槽３４でフラックス
と反応し、メッキ槽３５で予熱鉛浴後にアルミニウム浴
に浸漬されて溶融メッキされ、その後絞りロールでアル
ミニウムの付着厚みを０．０３〜０．１５ｍｍの範囲内
の一定値にａｍされ、被着材１２を付与される。基板１
１と被着材１２は、上記メッキ処理後に、プレス機３６
により塑性加工され、番孔２１〜２３を形成されるとと
もに、ビード部２４を形成される。FIG. 4 is a layout diagram schematically showing a production line for the metal gasket (10). 31 is a sheet coil of the substrate 11, and the sheet-shaped substrate 11 is unwound from the coil 31.
is washed with water in the washing tank 32, and 30% HC is washed in the pickling tank 33.
1, reacts with flux in a flux tank 34, is preheated in a lead bath in a plating tank 35, and then immersed in an aluminum bath for hot-dip plating, after which the aluminum adhesion thickness is reduced to 0.03 to 0.15 mm with a squeeze roll. am to a constant value within the range of , and the adherend 12 is applied. Board 1
1 and the adherend 12 are placed in a press machine 36 after the above plating treatment.
The holes 21 to 23 are formed by plastic working, and the bead portion 24 is formed.
ビード部２４を形成された基板１１、被着材１２は、次
に、加熱炉３７により、３５０〜５００℃の熱処理によ
って調質される。The substrate 11 and the adherend 12 on which the bead portions 24 have been formed are then tempered by heat treatment at 350 to 500° C. in a heating furnace 37 .
上記金属ガスケット１０によれば、溶融メッキ法を用い
ることから、芯材としての基板ｉｔに被着されるアルミ
ニウムの厚みを、容易に０．０３〜０．１５ｍ■の適正
範囲内で調節し、シール性能を向上することができる。According to the metal gasket 10, since the hot-dip plating method is used, the thickness of the aluminum coated on the substrate IT as a core material can be easily adjusted within the appropriate range of 0.03 to 0.15 m. Seal performance can be improved.
ここで、アルミニウムの厚みの下限値を０．０３ｍ１未
満とする場合には、第８図に示すように、被シール部材
表面の微細な凹凸を十分に吸収することができない、第
８図の線図は、第１０図に示すように、被着材１２をベ
ースプレート（シリンダブロック相当）１０１とヘッド
（シリンダヘッド相当）１０２の間に挟み、ペースプレ
ー）１０１とヘッド１０２の間に５ＭＰａのエア圧を加
えた時、被着材１２に強制的につけたへこみの深さＪＡ
Ｗと、被着材１２からリークしてメスシリンダ１０３に
捕集されたエア！Ｕとの関係を示すものである。ベース
プレートｉｏｔとへ＋７ Ｆ １０２ ｉｔエアミニウ
ム合金（Ａ２０１７−７８）から形成された。Here, if the lower limit of the aluminum thickness is less than 0.03 m1, as shown in FIG. 8, the line in FIG. As shown in FIG. 10, the adherend 12 is sandwiched between a base plate (equivalent to a cylinder block) 101 and a head (equivalent to a cylinder head) 102, and an air pressure of 5 MPa is applied between the paste spray) 101 and the head 102. The depth of the indentation forcibly made on the adherend 12 when
W and the air leaked from the adherend 12 and collected in the female cylinder 103! This shows the relationship with U. The base plate was made from +7F 102IT air aluminum alloy (A2017-78).
この第８図によれば、被着材１２の厚みがＱ、Ｑ３＋ｗ
ｓ＋以上であれば、最大深さ１５終層のへこみもシール
できる。According to this FIG. 8, the thickness of the adherend 12 is Q, Q3+w
If it is s+ or more, it is possible to seal dents with a maximum depth of 15 layers.
また、アルミニウムの厚みの上限値を０．１５ｍｍより
大とする場合には、第９図に示すように、一定の使用期
間経過後にシール部のトルクダウンを生じて安定した締
付トルクを維持できない、第９図のトルクダウン量Δ丁
は、初期締付時ボルト軸力をＦｌ、１時間加熱冷却後軸
力をＦ２とする時、ΔＴ −（Ｆｌ−Ｆ２）／Ｆｌで表
わされるものである。この第９図によれば、被着材１２
の厚みが０．１５履諺をこえると、著しいトルクダウン
量を生ずる。Furthermore, if the upper limit of the aluminum thickness is set to be greater than 0.15 mm, as shown in Figure 9, the torque of the seal section will decrease after a certain period of use, making it impossible to maintain stable tightening torque. , the torque down amount ΔT in Fig. 9 is expressed as ΔT - (Fl - F2)/Fl, where the bolt axial force at initial tightening is Fl, and the axial force after heating and cooling for 1 hour is F2. . According to this FIG. 9, the adherend 12
When the thickness exceeds 0.15 mm, a significant amount of torque reduction occurs.
また、番孔２１〜２３、ビード部２４の塑性加工を施さ
れた基板１１、被着材１２を３５０〜５００℃の温度で
熱処理するため、基板１１がステンレス鋼からなる時、
該基板１１の強さを第５図に示すように向上し、ビード
部２４による耐圧性を安定して保持できる。In addition, since the substrate 11 and the adherend 12 on which the holes 21 to 23 and the bead portions 24 have been subjected to plastic processing are heat-treated at a temperature of 350 to 500°C, when the substrate 11 is made of stainless steel,
The strength of the substrate 11 is improved as shown in FIG. 5, and the pressure resistance due to the bead portion 24 can be stably maintained.
また、上記熱処理温度が３５０℃以上であるため、第６
図に示すように、アルミニウムからなる被着材１２の硬
度を上記調質後にＨＶ ８０以下とし、被着材１２の加
工硬化状態を十分に緩和できる。 １・
゛
第７図は本発明の他の実施例に係る金属ガスケットを示
す模式図である。この金属ガスケ−／ ）４０は、炭素
鋼、ステンレス鋼等からなる基板４１の両面に中間層４
２を設けたものを芯材とし、各中間層４２の表面にアル
ミニウムからなる被着材４３を溶融メッキしたものであ
る。中間層４２は、被着材４３を構成するアルミニウム
よりも融点が高く、該ガスケツ）４０の使用温度で基板
４１、被着材４３のいずれとも金属間化合物を形成しな
い金属１例えば銅からなる（この場合、使用上限温度は
３００℃である）、なお、上記金属ガスケツ）４０にお
いて、基板４１の厚みは０．１Ｏ〜０．３５履■、中間
層４２の厚みは０．００５〜０．０３履■、被着材４３
の厚みは０．０３〜０．１５ｍｍである。In addition, since the heat treatment temperature is 350°C or higher, the sixth
As shown in the figure, the hardness of the adherend 12 made of aluminum is set to HV 80 or less after the above-mentioned tempering, so that the work hardening state of the adherend 12 can be sufficiently alleviated. 1・
7 is a schematic diagram showing a metal gasket according to another embodiment of the present invention. This metal gasket/) 40 has intermediate layers 4 on both sides of a substrate 41 made of carbon steel, stainless steel, etc.
2 is used as a core material, and the surface of each intermediate layer 42 is hot-dipped with an adherend material 43 made of aluminum. The intermediate layer 42 is made of a metal 1, such as copper, which has a higher melting point than the aluminum constituting the adherend 43 and which does not form an intermetallic compound with either the substrate 41 or the adherend 43 at the operating temperature of the gasket 40. In this case, the upper limit temperature for use is 300°C), and in the above metal gasket 40, the thickness of the substrate 41 is 0.1 to 0.35 cm, and the thickness of the intermediate layer 42 is 0.005 to 0.03 cm. Shoes ■, adherend material 43
The thickness is 0.03 to 0.15 mm.
上記金属ガスケット４０は、基板４１と被着材４３の間
に高融点金属からなる中間層４２を設けたから、被着材
４３を構成するアルミニウムが中間層４２ひいては基板
４１の金属に拡散することを抑制する。また、金属ガス
ケット４０は、中間層４２がガスケットの使用温度で基
板４１、被着材４３のいずれとも金属間化合物を形成し
ない金属によって形成される。したがって、この金属ガ
スケット４０によれば、基板４１と中間層４２、中間層
４２と被着材４３の各接合界面のそれぞれにおいて、相
互に接する金属の相互拡散を抑制するとともに、金属間
化合物の形成を防止し、接合界面の脆化、亀裂の発生が
防止できる。すなわち、この金属ガスケット４０は、高
温で連続使用した際に、常に強固な結合状態を維持し、
高いシール性能を確保することができる。なお、この金
属ガスケット４０においても、被シール孔、ビード部等
の塑性加工後に、３５０〜５００℃の強化熱処理を施し
てもよい。Since the metal gasket 40 has an intermediate layer 42 made of a high-melting point metal between the substrate 41 and the adherend 43, it is possible to prevent the aluminum constituting the adherend 43 from diffusing into the intermediate layer 42 and eventually into the metal of the substrate 41. suppress. Further, in the metal gasket 40, the intermediate layer 42 is formed of a metal that does not form an intermetallic compound with either the substrate 41 or the adherend 43 at the temperature at which the gasket is used. Therefore, according to this metal gasket 40, at each bonding interface between the substrate 41 and the intermediate layer 42, and between the intermediate layer 42 and the adherend 43, mutual diffusion of metals in contact with each other is suppressed, and the formation of intermetallic compounds is suppressed. This prevents embrittlement and cracking at the bonding interface. That is, this metal gasket 40 always maintains a strong bonding state when used continuously at high temperatures,
High sealing performance can be ensured. Note that this metal gasket 40 may also be subjected to a strengthening heat treatment at 350 to 500° C. after plastic working of the sealed hole, bead portion, etc.
また、本発明の実施において、被着材は、芯材の片面側
にのみ設けるものであってもよい。Further, in implementing the present invention, the adherend may be provided only on one side of the core material.
［発明の効果］
以上のように、本発明によれば、溶融メッキ法の適用に
より、芯材に被着されるアルミニウムの厚みを容易に適
正範囲内でａｍし、シール性能を向上することができる
。[Effects of the Invention] As described above, according to the present invention, by applying the hot-dip plating method, the thickness of aluminum coated on the core material can be easily adjusted within an appropriate range, and the sealing performance can be improved. can.
【図面の簡単な説明】
第１図は本発明の一実施例に係る金属ガスケットを示す
模式図、第２図は金属ガスケットを示す平面図、第３図
は第２図のｍ−■線に沿う断面図、第４図は金属ガスケ
ットの製造方法を示す模式図、第５図は基板の強さと調
質温度との関係を示す線図、第６図は被着材の硬度と調
質温度との関係を示す線図、第７図は本発明の他の実施
例に係る金属ガスケットを示す模式図、第８図は被着材
アルミニウムの厚みと被シール材表面の凹凸吸収量との
関係を示す線図、第９図は被着材アルミニウムの厚みと
締付トルクダウン量との関係を示す線図、第１０図は第
８図の線図を得るために用いた実験装置を示す模式図で
ある。
１０・・・金属ガスケット、１１・・・基板（芯材）、
１２・・・被着材。
代理人 弁理士 塩 川 修 治
第５図
第６図
頂犀前 −ｔＭ１２度（司祖待峙閘３０介第８ 図[Brief Description of the Drawings] Fig. 1 is a schematic diagram showing a metal gasket according to an embodiment of the present invention, Fig. 2 is a plan view showing the metal gasket, and Fig. 3 is taken along the line m-■ in Fig. 2. Figure 4 is a schematic diagram showing the manufacturing method of metal gaskets, Figure 5 is a diagram showing the relationship between substrate strength and tempering temperature, and Figure 6 is the hardness of adherend and tempering temperature. 7 is a schematic diagram showing a metal gasket according to another embodiment of the present invention, and FIG. 8 is a diagram showing the relationship between the thickness of the adherend material aluminum and the absorption amount of unevenness on the surface of the material to be sealed. Figure 9 is a diagram showing the relationship between the thickness of the adherend aluminum and the amount of tightening torque reduction, and Figure 10 is a schematic diagram showing the experimental equipment used to obtain the diagram in Figure 8. It is a diagram. 10... Metal gasket, 11... Substrate (core material),
12...Adherent material. Agent: Patent Attorney Osamu Shiokawa
Claims (1)
なる被着材を添設してなる金属ガスケットにおいて、該
アルミニウムを溶融メッキ法によって０．０３〜０．１
５ｍｍの厚みで設けてなることを特徴とする金属ガスケ
ット。(1) In a metal gasket in which an adherend material made of aluminum is attached to the surface of a core material made of a metal material, the aluminum is coated with a thickness of 0.03 to 0.1 by hot-dip plating.
A metal gasket characterized by being provided with a thickness of 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24206586A JPS6396360A (en) | 1986-10-14 | 1986-10-14 | Metallic gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24206586A JPS6396360A (en) | 1986-10-14 | 1986-10-14 | Metallic gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6396360A true JPS6396360A (en) | 1988-04-27 |
Family
ID=17083756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24206586A Pending JPS6396360A (en) | 1986-10-14 | 1986-10-14 | Metallic gasket |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6396360A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004083690A1 (en) * | 2003-03-17 | 2004-09-30 | Nippon Leakless Industry Co. Ltd. | Metal gasket for cylinder head |
-
1986
- 1986-10-14 JP JP24206586A patent/JPS6396360A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004083690A1 (en) * | 2003-03-17 | 2004-09-30 | Nippon Leakless Industry Co. Ltd. | Metal gasket for cylinder head |
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