JPS6361548B2 - - Google Patents
Info
- Publication number
- JPS6361548B2 JPS6361548B2 JP58233529A JP23352983A JPS6361548B2 JP S6361548 B2 JPS6361548 B2 JP S6361548B2 JP 58233529 A JP58233529 A JP 58233529A JP 23352983 A JP23352983 A JP 23352983A JP S6361548 B2 JPS6361548 B2 JP S6361548B2
- Authority
- JP
- Japan
- Prior art keywords
- gasket
- bead
- sealing material
- joint
- force
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
- F16J15/0806—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing characterised by material or surface treatment
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、熱歪み等で生じた被接合部材の変
形によりガスケツトに過度の力が作用してもシー
ル効果の低下を生じることのない金属ガスケツト
に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a metal seal that does not deteriorate its sealing effect even if excessive force is applied to the gasket due to deformation of the members to be joined due to thermal distortion or the like. Regarding gaskets.
被接合部材の接合面間、例えばシリンダヘツド
とシリンダブロツク等の接合面間のシール手段と
して、金属ガスケツトが提案されている。金属ガ
スケツトは、弾性を有する金属板にビードを形成
し、このビードを前記接合面に適宜の押圧力で押
圧してシールを果している。そしてこのとき、接
合面とガスケツトの両当接面とのシールをより確
実にするために、ガスケツトの両当接面にミクロ
シールなどのシール材を必ず被着している。
A metal gasket has been proposed as a sealing means between joint surfaces of members to be joined, for example between a cylinder head and a cylinder block. The metal gasket has a bead formed on an elastic metal plate, and the bead is pressed against the joint surface with an appropriate pressing force to achieve a seal. At this time, in order to ensure a more reliable seal between the joint surface and both abutting surfaces of the gasket, a sealing material such as Microseal is always applied to both abutting surfaces of the gasket.
ところが、このシール材を被着したために接合
面との摩擦が大きくなり、すべりが悪いので押圧
時にガスケツトには無理な力が作用する。特に、
前記被接合部材に熱歪みや締付け等で変形を生じ
た場合、ガスケツトに過度の力が作用するおそれ
がある。例えば、アルミ材のシリンダヘツドと鋳
鉄のシリンダブロツクからなる内燃機関において
は、アルミ材の熱膨張係数が鋳鉄よりも大きいの
で、駆動時に熱歪みを生じ変形する。この変形
で、接合面間の大きくなつた間隙はビードの弾性
復元力で吸収しシール効果を維持し得るが、間隙
が小さくなつた接合面間ではガスケツトに過度の
力が作用する。この過度の力によりガスケツトは
接合面に強く押付けられると、前記の如くすべり
が悪いので逃げることができないため、ガスケツ
トの変形やビードの接合面への食い込みによるビ
ード切れを生じ、また接合面を傷つけてしまい、
その結果シール効果の低下を招く不都合を有して
いた。
However, since this sealing material is applied, friction with the joint surface increases and slippage is poor, so an unreasonable force is applied to the gasket when it is pressed. especially,
If the members to be joined are deformed due to thermal distortion, tightening, etc., there is a risk that excessive force will be applied to the gasket. For example, in an internal combustion engine having a cylinder head made of aluminum and a cylinder block made of cast iron, the thermal expansion coefficient of the aluminum material is larger than that of cast iron, so the engine is thermally strained and deformed during operation. Due to this deformation, the gap between the joint surfaces that has become larger can be absorbed by the elastic restoring force of the bead and the sealing effect can be maintained, but excessive force is applied to the gasket between the joint surfaces where the gap has become smaller. If the gasket is strongly pressed against the joint surface due to this excessive force, it will not be able to escape due to poor slippage as described above, resulting in deformation of the gasket, breakage of the bead due to the bead biting into the joint surface, and damage to the joint surface. I ended up
As a result, there was a problem that the sealing effect deteriorated.
そこで、この発明はこのような問題を解消し、
熱歪みや締付け等で生じた被接合部材の変形によ
りガスケツトへ過度の力が作用してもガスケツト
の変形やビード切れ、また接合面の損傷等による
シール効果の低下を生じることのない金属ガスケ
ツトを実現することを目的とする。
Therefore, this invention solves these problems and
We have developed a metal gasket that will not deform the gasket, break the bead, or reduce the sealing effect due to damage to the joint surface, even if excessive force is applied to the gasket due to deformation of the parts to be joined due to thermal distortion or tightening. The purpose is to realize this.
この目的を達成するためにこの発明は、弾性金
属板にビードを形成するとともに両当接面にシー
ル材を被着した金属ガスケツトにおいて、この金
属ガスケツトの前記シール材を被着した両当接面
の少くとも片面に減摩層を形成して減摩処理した
ことを特徴としている。
To achieve this object, the present invention provides a metal gasket in which a bead is formed on an elastic metal plate and a sealing material is applied to both abutting surfaces of the metal gasket. It is characterized by having been treated to reduce friction by forming an anti-friction layer on at least one side of the surface.
このように、この発明の構成によれば、ガスケ
ツトのシール材を被着した両当接面の減摩処理、
すなわち溶接面とのすべりを良くしたことによ
り、過度の力が作用しても、ガスケツトはすべつ
て逃げることができる。
As described above, according to the configuration of the present invention, anti-friction treatment is performed on both abutting surfaces of the gasket on which the sealing material is applied.
In other words, by improving the sliding contact with the welding surface, the gasket can slip and escape even if excessive force is applied.
次にこの発明の実施例を図に基づいて詳細に説
明する。第１図は、この発明の金属ガスケツトの
断面図である。図において、２は弾性金属板より
なるガスケツト、４はビードである。このガスケ
ツト２の両当接面６，８には、従来よりミクロシ
ールのためにシール材を被着している。このシー
ル材を被着した両当接面６，８の片方、図におい
て下側の当接面８には、二硫化モリブデンや黒鉛
等からなる減摩層１０を形成して減摩処理を施
し、すべりを良くしている。
Next, embodiments of the present invention will be described in detail based on the drawings. FIG. 1 is a sectional view of the metal gasket of the present invention. In the figure, 2 is a gasket made of an elastic metal plate, and 4 is a bead. Conventionally, a sealing material is applied to both contact surfaces 6 and 8 of this gasket 2 for micro-sealing. An anti-friction layer 10 made of molybdenum disulfide, graphite, etc. is formed on one of the contact surfaces 6 and 8 coated with this sealing material, the lower contact surface 8 in the figure, for anti-friction treatment. , improves slippage.
このように構成されたガスケツト２は、第２図
の如く被接合部材たるシリンダヘツド１２とシリ
ンダブロツク１４との各接合面１６，１８間に介
装する。ボルト（図示せず）等で締付けると、ビ
ード４の頂部２０と両基部２２，２２とは接合面
１６，１８に押圧され、シールを果す。このと
き、両基部２２，２２は減摩層１０により矢印ａ
方向にすべつて広がりガスケツト２に作用する力
を逃すことができるとともに、広がつた後はその
位置でシール材によりシールを果すことができ
る。 The gasket 2 thus constructed is interposed between the joint surfaces 16 and 18 of the cylinder head 12 and cylinder block 14, which are members to be joined, as shown in FIG. When tightened with a bolt (not shown) or the like, the top 20 and both bases 22, 22 of the bead 4 are pressed against the joint surfaces 16, 18, creating a seal. At this time, both the base portions 22, 22 are moved by the arrow a by the anti-friction layer 10.
It is possible to spread out the force acting on the gasket 2 by sliding in the direction, and after spreading, the sealing material can be used to seal at that position.
この状態で機関を駆動すると、熱歪みにより接
合面１６，１８間の間隙は第２図のl1から第３図
のl2に小さくなり、ガスケツト２に大きな力が作
用する。この場合、従来のガスケツトでは、ビー
ド切れ等によるシール効果の低下を招いた。しか
し、この発明によれば、ガスケツト２の下側当接
面８に減摩層１０を形成しすべりを良くしたの
で、ビード４部においては矢印ａに示す方向に基
部２２，２２が広がり、すべつて逃げることがで
きる。このため、ビード切れや接合面の損傷を生
じることなく、またガスケツト２全体としてもす
べつて逃げることにより力を逃し、変形を防止し
得るので、シール効果の低下を防止することがで
きる。 When the engine is driven in this state, the gap between the joint surfaces 16 and 18 decreases from l 1 in FIG. 2 to l 2 in FIG. 3 due to thermal distortion, and a large force acts on the gasket 2. In this case, with conventional gaskets, the sealing effect deteriorates due to bead breakage and the like. However, according to the present invention, since the anti-friction layer 10 is formed on the lower contact surface 8 of the gasket 2 to improve the sliding, the base portions 22, 22 spread in the direction shown by the arrow a at the bead 4 portion, making it smoother. You can run away. Therefore, the gasket 2 as a whole can slip and escape without causing bead breakage or damage to the joint surfaces, allowing force to be released and deformation to be prevented, thereby preventing deterioration of the sealing effect.
なお、この実施例ではガスケツト２の下側の当
接面８のみに減摩層１０を形成し減摩処理を施し
たが、両当接面６，８に減摩層１０を形成するこ
とにより両接合面１６，１８の損傷等をより少く
し、シール効果の低下をより確実に防止すること
ができる。また、シール材を被着しない場合にも
減摩層を形成して力を逃しシール効果の低下を防
止し得るのはもちろんのこと、当接面を平滑に仕
上げることによりすべつて逃げるようにすること
も可能である。 In this embodiment, the anti-friction layer 10 was formed only on the lower contact surface 8 of the gasket 2 to perform anti-friction treatment, but by forming the anti-friction layer 10 on both the contact surfaces 6 and 8, Damage to both the joint surfaces 16 and 18 can be further reduced, and deterioration of the sealing effect can be more reliably prevented. In addition, even when no sealing material is applied, an anti-friction layer is formed to release force and prevent the sealing effect from deteriorating, as well as smoothing the contact surface to prevent slippage. It is also possible.
このようにこの発明によれば、熱歪みや締付け
等で被接合部材が変形しガスケツトに過度の力が
作用しても、ガスケツトのシール材を被着した両
当接面の少くとも片面に減摩層を形成して減摩処
理を施したので、ビードが接合面に食い込むこと
なくすべつて逃げることができる。このため、ガ
スケツトの変形やビード切れを生じることなく、
また接合面を傷つけることがないので、シール効
果の低下を防止することができる。
As described above, according to the present invention, even if excessive force is applied to the gasket due to deformation of the members to be joined due to thermal distortion, tightening, etc., the force is reduced to at least one side of both contact surfaces covered with the sealing material of the gasket. Since a friction layer is formed to reduce friction, the bead can slide away without digging into the joint surface. Therefore, there is no possibility of gasket deformation or bead breakage.
Furthermore, since the bonding surface is not damaged, it is possible to prevent the sealing effect from deteriorating.
第１〜３図はこの発明の実施例を示し、第１図
は金属ガスケツトの断面図、第２，３図はこの発
明の金属ガスケツトによる接合部の断面図であ
る。
図において、２はガスケツト、４はビード、
６，８は当接面、１０は減摩層、１２はシリンダ
ヘツド、１４はシリンダブロツク、１６，１８は
接合面である。
1 to 3 show embodiments of the present invention; FIG. 1 is a cross-sectional view of a metal gasket, and FIGS. 2 and 3 are cross-sectional views of a joint using the metal gasket of the present invention. In the figure, 2 is a gasket, 4 is a bead,
6 and 8 are contact surfaces, 10 is an antifriction layer, 12 is a cylinder head, 14 is a cylinder block, and 16 and 18 are joint surfaces.
Claims (1)
接面にシール材を被着した金属ガスケツトにおい
て、この金属ガスケツトの前記シール材を被着し
た両当接面の少くとも片面に減摩層を形成して減
摩処理したことを特徴とする金属ガスケツト。1. In a metal gasket in which a bead is formed on an elastic metal plate and a sealing material is applied to both abutting surfaces, an antifriction layer is formed on at least one side of both abutting surfaces of the metal gasket to which the sealing material is applied. A metal gasket characterized by being treated to reduce friction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23352983A JPS60125462A (en) | 1983-12-13 | 1983-12-13 | Metallic gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23352983A JPS60125462A (en) | 1983-12-13 | 1983-12-13 | Metallic gasket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60125462A JPS60125462A (en) | 1985-07-04 |
| JPS6361548B2 true JPS6361548B2 (en) | 1988-11-29 |
Family
ID=16956466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23352983A Granted JPS60125462A (en) | 1983-12-13 | 1983-12-13 | Metallic gasket |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60125462A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03124074U (en) * | 1990-03-30 | 1991-12-17 | ||
| US7182058B2 (en) * | 2004-04-19 | 2007-02-27 | Federal-Mogul World Wide, Inc. | Exhaust manifold gasket |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2957784A (en) * | 1958-09-18 | 1960-10-25 | Wolverine Fabricating & Mfg Co | Gasket material and method of producing the same |
| JPS5123023Y2 (en) * | 1972-04-14 | 1976-06-14 | ||
| JPS517767U (en) * | 1974-07-03 | 1976-01-20 | ||
| JPS524432U (en) * | 1975-06-24 | 1977-01-12 | ||
| JPS5637164Y2 (en) * | 1975-07-17 | 1981-09-01 | ||
| JPS5213351U (en) * | 1975-07-17 | 1977-01-29 | ||
| JPS52135761U (en) * | 1976-04-10 | 1977-10-15 | ||
| JPS597068B2 (en) * | 1978-02-08 | 1984-02-16 | 石野ガスケツト工業株式会社 | gasket |
| JPS5719486Y2 (en) * | 1978-08-03 | 1982-04-23 | ||
| JPS55105660U (en) * | 1979-08-23 | 1980-07-23 | ||
| JPS6216538Y2 (en) * | 1979-09-18 | 1987-04-25 | ||
| JPS591905B2 (en) * | 1979-11-15 | 1984-01-14 | 日立化成工業株式会社 | Manufacturing method of graphite gasket |
| JPS6029660Y2 (en) * | 1980-08-21 | 1985-09-06 | 本田技研工業株式会社 | gasket |
-
1983
- 1983-12-13 JP JP23352983A patent/JPS60125462A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60125462A (en) | 1985-07-04 |
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