JPH08312785A - Metallic gasket and manufacture thereof - Google Patents
Metallic gasket and manufacture thereofInfo
- Publication number
- JPH08312785A JPH08312785A JP14558595A JP14558595A JPH08312785A JP H08312785 A JPH08312785 A JP H08312785A JP 14558595 A JP14558595 A JP 14558595A JP 14558595 A JP14558595 A JP 14558595A JP H08312785 A JPH08312785 A JP H08312785A
- Authority
- JP
- Japan
- Prior art keywords
- material layer
- sealing material
- metal plate
- hardness
- gasket
- 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
Landscapes
- Gasket Seals (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は例えばエンジンのシリン
ダヘッド用ガスケット等として用いる金属ガスケット及
びその製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal gasket used as, for example, a cylinder head gasket of an engine and a method for manufacturing the same.
【0002】[0002]
【従来の技術】例えば、エンジンのシリンダヘッド用金
属ガスケット等において、シールすべき面に当接するガ
スケットの外表面及びガスケットを構成する金属板間
に、金属面の粗さ、歪み、傷等の不整を補償するいわゆ
るミクロシールのために加硫ゴムからなるシール材層を
被覆することは周知され、広く実用されている。2. Description of the Related Art For example, in an engine cylinder head metal gasket or the like, irregularities such as roughness, distortion, and scratches on the metal surface are present between the outer surface of the gasket that abuts the surface to be sealed and the metal plate that constitutes the gasket. It is well known and widely practiced to coat a sealing material layer made of vulcanized rubber for a so-called microseal that compensates for the above.
【0003】従来は、かかるシール材層を備えた金属ガ
スケットを製造するには、はじめに平坦な金属板にシー
ル材層を塗布し加硫したのちに、シリンダボアや流体通
路穴等の流体流通穴、ボルト穴及びガスケット外周の打
抜き加工並びに流体流通穴の周りを囲繞しシールするビ
ード、折返し等を形成する加工を行っていた。従ってシ
ール材層は被覆したのちの取扱いや機械加工に耐えるも
のである必要があり、通常、JISK6301規定の硬
度で90以上の比較的硬いゴムを用いていた。Conventionally, in order to manufacture a metal gasket having such a seal material layer, first, a flat metal plate is coated with the seal material layer and vulcanized, and then a fluid passage hole such as a cylinder bore or a fluid passage hole is formed. Punching of the bolt holes and the outer periphery of the gasket and processing of forming beads, folds, etc., which surround and seal the fluid circulation holes, have been performed. Therefore, the sealing material layer needs to withstand handling and machining after coating, and normally, a relatively hard rubber having a hardness of 90 or more according to JIS K6301 was used.
【0004】[0004]
【発明が解決しようとする課題】所で、はじめに平坦な
金属板にシール材層を被覆してから流体流通穴、ボルト
穴及びガスケット外周等を打抜くことは高価なシール材
層の材料が多く無駄となり不経済であるから、打抜き等
の機械加工後にシール材層を被覆することが検討されて
いる。この場合に、流体流通穴等の打抜き加工と、金属
板に段差や傾斜を生じるビードや折返し等の形成加工と
を分けて、打抜き加工後にシール材層を被覆し、然る後
にビードや折返しの形成加工を行うことも考えられる
が、プレス工程が2回に分断され、コストアップとな
る。従って打抜きだけでなく、ビードや折返し等を形成
する金属板に段差、傾斜を生じる加工をも行った後に、
金属板表面にシール材層を被覆することが望まれる。However, it is often expensive to coat a flat metal plate with a sealing material layer and then punch out fluid passage holes, bolt holes, gasket outer circumference, etc. Since it is wasteful and uneconomical, it is considered to coat the sealing material layer after machining such as punching. In this case, the punching process for the fluid flow holes and the like and the forming process for the beads and folds that cause a step or inclination in the metal plate are divided, and the sealing material layer is covered after the punching process, and then the bead and folds are formed. Although it is possible to perform the forming process, the pressing process is divided into two, resulting in an increase in cost. Therefore, in addition to punching, after performing steps to create steps and inclinations on the metal plate that forms beads, folds, etc.,
It is desired to coat the surface of the metal plate with a sealing material layer.
【0005】然し、この場合はビード、折返し等の形成
により段差、傾斜が生じている金属板にシール材層を塗
装するために、シール材層の膜厚にかなりのバラツキが
生じるのを避け難い。従ってシール材層が従来のように
比較的硬い場合には、充分なシール性を得難く、シール
材層を従来よりも軟らかくする必要があると思われる。
一方、シール材層が軟らかすぎると、ガスケットをシー
ルすべき面間に組付けた後にボルトによる締付力と直角
な方向すなわちシール面と平行な方向へのシール材層の
フローを生じ塗膜が破壊するおそれがあり、高圧の流体
をシールできないと思われる。However, in this case, since the sealing material layer is coated on the metal plate having a step or an inclination due to the formation of beads, folds, etc., it is unavoidable that the film thickness of the sealing material layer varies considerably. . Therefore, when the sealing material layer is relatively hard as in the conventional case, it is difficult to obtain sufficient sealing properties, and it is necessary to make the sealing material layer softer than in the conventional case.
On the other hand, if the sealing material layer is too soft, after the gasket is assembled between the surfaces to be sealed, flow of the sealing material layer occurs in the direction perpendicular to the tightening force of the bolts, that is, in the direction parallel to the sealing surface, and the coating film is formed. There is a risk of destruction and it seems that high pressure fluid cannot be sealed.
【0006】本願の発明者は上記の点に着目して研究の
結果、流体流通穴、ボルト穴及びガスケット外周の打抜
き加工、並びに段差や傾斜を生じるビードや折返し等の
形成加工を金属板に行った後に、該金属板にシール材層
を被覆する場合において、シール性と耐フロー性とのバ
ランスがとれたシール材層の最適な硬度範囲を解明し、
本発明を完成するに至ったものである。The inventor of the present application paid attention to the above points, and as a result of the research, punched the fluid circulation hole, the bolt hole and the outer periphery of the gasket, and formed the metal plate such as a bead or a fold that causes a step or an inclination. After that, in the case of covering the metal plate with the seal material layer, the optimum hardness range of the seal material layer in which the sealability and the flow resistance are balanced is clarified,
The present invention has been completed.
【0007】[0007]
【課題を解決するための手段】本発明の金属ガスケット
は、少なくとも1枚の金属板からなり、金属板が流体流
通穴及びボルト穴を有し、該流体流通穴を囲繞しシール
するビード、折返し等の段差もしくは傾斜部を備え、上
記穴の打抜き加工及び上記段差もしくは傾斜部の成形加
工の後に被覆された金属板表面の加硫ゴムからなるシー
ル材層がJISK6301に規定の硬度で68乃至82
であることを特徴とするものである。The metal gasket of the present invention comprises at least one metal plate, and the metal plate has a fluid passage hole and a bolt hole, and a bead for folding and surrounding the fluid passage hole and a folded back. A sealing material layer made of vulcanized rubber on the surface of the metal plate, which is provided with a step or an inclined portion such as the above, after the punching of the hole and the forming of the step or the inclined portion, has a hardness of 68 to 82 specified by JISK6301.
It is characterized by being.
【0008】また、本発明による金属ガスケットの製造
方法は、流体流通穴及びボルト穴を打抜く打抜き加工並
びに該流体流通穴を囲繞しシールするビード、折返し等
の段差もしくは傾斜部を形成する加工を金属板に施した
のち、該金属板の表面にゴム、加硫剤等を溶剤に溶解し
た加硫可能なゴム塗料を塗装し、次いで該塗膜を加熱加
硫し金属板の表面にJISK6301に規定の硬度で6
8乃至82の硬さを有するシール材層を形成することを
特徴とするものである。Further, the method for manufacturing a metal gasket according to the present invention includes a punching process for punching a fluid flow hole and a bolt hole, and a process for forming a step or a sloped portion such as a bead and a turn that surrounds and seals the fluid flow hole. After applying to a metal plate, a vulcanizable rubber paint in which a rubber, a vulcanizing agent, etc. are dissolved in a solvent is applied to the surface of the metal plate, and then the coating film is heated and vulcanized to JIS K6301 on the surface of the metal plate. 6 with the specified hardness
A sealing material layer having a hardness of 8 to 82 is formed.
【0009】[0009]
【実施例】はじめに本発明についての実験例を説明す
る。まず、厚さ0.25mmのSUS 301 CSP
3/4Hのステンレス鋼板からなり、直径55mmの
水穴の周りに該水穴の外周から1.4mm離れて水孔を
囲繞する段差(高さ)0.45mm、幅2.2mmのス
テップビードを設けた単板のガスケットサンプルを作成
したのち、該サンプルの両面にふっ素ゴム(デュポン社
のバイトンE60C)を溶剤に溶解したゴム塗料を塗装
し、乾燥後、加硫して表1に示す種々の硬度(JISK
6301規定の硬度)を有する膜厚27μmのシール材
層を形成した。シール材層のゴム硬度は充填したカーボ
ンの充填量により調節した。EXAMPLES First, experimental examples of the present invention will be described. First, 0.25 mm thick SUS 301 CSP
A step bead of a 3 / 4H stainless steel plate, having a diameter of 55 mm and a step (height) of 0.45 mm and a width of 2.2 mm surrounding the water hole at a distance of 1.4 mm from the outer periphery of the water hole. After preparing a gasket sample of the provided single plate, a rubber paint in which fluororubber (Viton E60C manufactured by DuPont) was dissolved in a solvent was applied to both surfaces of the sample, dried, and then vulcanized to obtain various types shown in Table 1. Hardness (JISK
A sealing material layer having a film thickness of 27 μm and having a hardness of 6301 normal) was formed. The rubber hardness of the sealing material layer was adjusted by the filling amount of the filled carbon.
【0010】上記のガスケットサンプルについて表1に
示す種々の締付力の下で水圧試験を行い、シール可能な
水圧(kg/cm2 )を求めた。シール可能か否かの判
定は水に容易に溶ける白色塗料スーパーチェック(マー
クテック社商品名)を用いて目視判定した。締付力の測
定はロードセルにより行い、水の加圧は手動ポンプによ
り行った。試験結果は表1に示す通りである。なお、各
水準それぞれに対し3ヶのサンプルにつき試験を行っ
た。The above gasket samples were subjected to a water pressure test under various tightening forces shown in Table 1 to determine a water pressure (kg / cm 2 ) at which sealing was possible. Whether or not the seal was possible was visually determined by using a white paint Super Check (trade name of Mark Tech Co., Ltd.) that easily dissolves in water. The tightening force was measured by a load cell, and the water was pressurized by a manual pump. The test results are as shown in Table 1. The test was conducted on three samples for each level.
【0011】[0011]
【表1】 [Table 1]
【0012】表1に示す試験結果からゴム硬度が82を
越えるとシール性が低下しシール可能な水圧が低下する
ことがわかる。またゴム硬度が68より低いと締付力が
大きい場合にシール可能な水圧が低下する。この場合、
シール材層にフローが生じていることが、試験後のサン
プルの目視検査により確認された。この試験結果からゴ
ム硬度68〜82の範囲がシール性と耐フロー性が両立
する好適なゴム硬度範囲であることがわかる。なお、シ
リンダヘッドガスケットの場合、冷却水のシールには、
通常、少なくとも10kg/cm2 の水圧をシールでき
ることが要求される。From the test results shown in Table 1, it can be seen that when the rubber hardness exceeds 82, the sealing property is deteriorated and the sealable water pressure is decreased. Further, if the rubber hardness is lower than 68, the water pressure capable of sealing decreases when the tightening force is large. in this case,
It was confirmed by visual inspection of the sample after the test that a flow was generated in the sealing material layer. From this test result, it can be seen that the range of rubber hardness 68 to 82 is a suitable rubber hardness range in which both sealing property and flow resistance are compatible. For cylinder head gaskets,
Usually, it is required to be able to seal a water pressure of at least 10 kg / cm 2 .
【0013】本発明による金属ガスケットの実施例を図
1〜3に示している。図1は本発明の第1実施例のガス
ケットの平面図であり、図2は図1のA−A線による拡
大断面図である。図3は本発明の第2実施例についての
図2と同様な拡大断面図である。図中の同一符号は同一
部分を示している。An embodiment of a metal gasket according to the present invention is shown in FIGS. 1 is a plan view of a gasket according to a first embodiment of the present invention, and FIG. 2 is an enlarged sectional view taken along the line AA of FIG. FIG. 3 is an enlarged sectional view similar to FIG. 2 of the second embodiment of the present invention. The same reference numerals in the drawings indicate the same parts.
【0014】図1及び図2において、本発明によるシリ
ンダヘッドガスケット1はステンレス鋼板、鋼板等の弾
性金属板2の単板からなり、流体流通穴として燃焼室用
開口5及び水穴、油穴等の液体通路穴6を備え、またボ
ルト穴7を備えている。燃焼室用開口5の周りにはこれ
を囲繞しシールする山形ビード9が設けられ、液体通路
穴6の周りにはこれを囲繞しシールするステップビード
10が設けられ、金属板2は段差、傾斜部を有してい
る。1 and 2, a cylinder head gasket 1 according to the present invention comprises a single plate of an elastic metal plate 2 such as a stainless steel plate or a steel plate, and has a combustion chamber opening 5 as a fluid passage hole, a water hole, an oil hole, etc. Liquid passage hole 6 and bolt hole 7. A chevron bead 9 that surrounds and seals the combustion chamber opening 5 is provided, and a step bead 10 that surrounds and seals the liquid passage hole 6 is provided around the combustion chamber opening 5. Have a section.
【0015】かかる金属板2の両面にはふっ素ゴム、シ
リコーンゴム、ニトリルゴム或はアクリルゴム等のゴム
が被覆されている。このシール材層12は、金属板2に
燃焼室用開口5、液体通路穴6、ボルト穴7及びガスケ
ットの外周縁8を打抜く打抜き加工と、段差、傾斜部を
形成する山形ビード9及びステップビード10を形成す
る加工とを行った後に該金属板の表面に被覆されたもの
であり、従来のシール材層より軟らかく、JISK63
01に規定する硬度で68乃至82の硬度を有してい
る。シール材層は上記の通り段差、傾斜部を有する金属
板の表面にゴム塗料を塗布し、乾燥、加硫して形成した
ものであるから厚さのバラツキがかなり大きいが、シー
ル材層の硬度が従来より軟らかい硬度68乃至82に選
ばれているので、前記した実験結果から明らかなよう
に、シール性がよく、しかも耐フロー性も充分である。Both surfaces of the metal plate 2 are covered with rubber such as fluororubber, silicone rubber, nitrile rubber or acrylic rubber. The sealing material layer 12 is formed by punching the combustion chamber opening 5, the liquid passage hole 6, the bolt hole 7 and the outer peripheral edge 8 of the gasket in the metal plate 2, and the chevron bead 9 and the step forming the step and the inclined portion. The metal plate is coated on the surface of the metal plate after being processed to form the bead 10, and is softer than the conventional sealing material layer.
The hardness defined by 01 is 68 to 82. Since the sealing material layer is formed by applying a rubber coating on the surface of a metal plate having steps and slopes as described above, and drying and vulcanizing it, there is considerable variation in thickness, but the hardness of the sealing material layer is large. Is selected to have a hardness of 68 to 82, which is softer than before, and therefore, as is clear from the above-mentioned experimental results, the sealing property is good and the flow resistance is also sufficient.
【0016】本発明によれば、上記した通り、はじめ
に、燃焼室用開口5、液体通路穴6、ボルト穴7及び外
周縁を打抜く打抜き加工と段差、傾斜部をなす山形ビー
ド9、ステップビード10を形成する加工とを金属板2
に行い、然る後にゴム及び加硫剤を溶剤に溶解した加硫
可能なゴム塗料を該金属板2の表面に塗装し、乾燥、加
硫してシール材層を形成するから、金属板2の打抜かれ
る部分にはゴムを塗装せず、高価なゴムを無駄にするこ
とがない。また打抜き加工とビード形成加工とが分断さ
れないので、プレス加工を効率的に行うことができる。
従って、本発明によればシール材層を備えた金属ガスケ
ットを従来よりも安価に製造できる。According to the present invention, as described above, first, the punching process for punching the combustion chamber opening 5, the liquid passage hole 6, the bolt hole 7 and the outer peripheral edge and the step, the chevron bead 9 forming the inclined portion, and the step bead are formed. Processing for forming 10 and metal plate 2
After that, a vulcanizable rubber paint in which a rubber and a vulcanizing agent are dissolved in a solvent is applied to the surface of the metal plate 2 and dried and vulcanized to form a sealing material layer. No expensive rubber is wasted because rubber is not painted on the punched parts. Further, since the punching process and the bead forming process are not separated, the press process can be efficiently performed.
Therefore, according to the present invention, the metal gasket provided with the sealing material layer can be manufactured at a lower cost than before.
【0017】図3に示す第2実施例はステンレス鋼板、
鋼板等の弾性金属板からなる基板3と、基板よりも硬度
が小さく軟らかいステンレス鋼板、鉄板等からなる副板
4とを積層したシリンダヘッド用積層ガスケットであ
る。副板4の燃焼室用開口5の周縁には該周縁部を内側
に折返した折返し部11が形成され、基板3には上記折
返し部11よりも外側の位置において燃焼室用開口5を
囲繞する副板4側に凸な山形ビード9が設けられてい
る。液体通路穴周りにおいては、基板3に液体通路穴を
囲繞するステップビード10が設けられているだけで、
副板4は平坦である。The second embodiment shown in FIG. 3 is a stainless steel plate,
A laminated gasket for a cylinder head in which a substrate 3 made of an elastic metal plate such as a steel plate and a sub plate 4 made of a stainless steel plate having a hardness smaller than that of the substrate and an iron plate are laminated. A fold-back portion 11 is formed at the periphery of the combustion chamber opening 5 of the sub plate 4 by folding the rim portion inward, and the substrate 3 surrounds the combustion chamber opening 5 at a position outside the fold-back portion 11. A convex chevron bead 9 is provided on the side of the sub plate 4. Around the liquid passage hole, only the step bead 10 surrounding the liquid passage hole is provided on the substrate 3,
The sub plate 4 is flat.
【0018】基板3の両側の表面上に被覆されたシール
材層12、12は第1実施例におけるシール材層12と
全く同様であり、打抜き加工、ビード成形加工の後に被
覆され、硬度は68乃至82の範囲に選ばれている。副
板4には図面で上方側の外側表面のみにシール材層13
を設けている。このシール材層13には、副板4の外側
表面は段差、傾斜部が存在しない平坦面であり、均一な
厚さに塗装できるので、従来と同様硬度90以上の比較
的硬いシール材を被覆している。The sealing material layers 12 and 12 coated on the surfaces on both sides of the substrate 3 are exactly the same as the sealing material layer 12 in the first embodiment, and are coated after punching and bead molding and have a hardness of 68. It is selected in the range of 82 to 82. The sub-plate 4 has a sealing material layer 13 only on the upper outer surface in the drawing.
Is provided. In this sealing material layer 13, the outer surface of the sub-plate 4 is a flat surface having no steps or slopes and can be applied to a uniform thickness, so that a relatively hard sealing material having a hardness of 90 or more is coated as in the conventional case. are doing.
【0019】従って、シリンダヘッド及びブロックの接
合面の中で、熱膨張がより大きく、エンジンの運転開始
時或は停止時に相対的な移動を生じるシリンダヘッドの
接合面と上記の比較的硬いシール材層によって被覆され
た副板4の外側表面とが当接するようにガスケットを配
設するのが好ましい。Therefore, in the joint surface of the cylinder head and the block, the thermal expansion is larger, and the joint surface of the cylinder head, which causes relative movement when the engine starts or stops, and the above-mentioned relatively hard sealing material. It is preferable to arrange the gasket so as to abut the outer surface of the sub-plate 4 covered with the layer.
【0020】なお、図示の例では、基板3の副板4に対
向する内側表面にシール材層12を設けているから、副
板4の基板と対向する内側表面にはシール材層を設けて
いないが、二重に、副板4の内側表面にシール材層を設
けてもよい。この場合、該内側表面には段差部の折返し
部11が存在することから基板3のシール材層12と同
様に軟らかいシール材層を被覆してもよいが、基板3の
内側表面と二重にシール材層を設けるので副板の内側表
面のシール材層の厚さのバラツキが少々大きくてもシー
ル性を損なうことは少なく、副板4の外側表面と同じく
比較的硬いシール材層を被覆するようにしてもよい。In the illustrated example, since the sealing material layer 12 is provided on the inner surface of the substrate 3 facing the sub plate 4, the sealing material layer is provided on the inner surface of the sub plate 4 facing the substrate. However, the sealing material layer may be doubly provided on the inner surface of the sub plate 4. In this case, since the folded-back portion 11 of the stepped portion is present on the inner surface, a soft sealing material layer may be coated similarly to the sealing material layer 12 of the substrate 3, but it is doubled with the inner surface of the substrate 3. Since the sealing material layer is provided, even if the thickness of the sealing material layer on the inner surface of the sub-plate is slightly large, the sealing property is not impaired, and a relatively hard sealing material layer is covered like the outer surface of the sub-plate 4. You may do it.
【0021】[0021]
【発明の効果】上記説明した通り、本発明によれば、金
属板の打抜かれる部分にはシール材層を被覆しないの
で、高価なゴム塗料を無駄に費やさずに節減でき、また
打抜き加工と段差、傾斜部となるビード、折返し部の形
成加工とが分断されないので、プレス加工を効率的に行
うことができ、金属板表面にシール材層を備えた金属ガ
スケットを従来よりも安価に製造することができる。ま
た、本発明によれば、シール材層が段差、傾斜部のある
金属板表面に被覆されるため、シール材層の厚さのバラ
ツキが大きいが、シール材層の硬度が従来よりも軟らか
い硬度68〜82の範囲に選ばれているので、シール材
層のシール性がよく耐フロー性も充分であり、本発明の
ガスケットは良好なシール性能を保つことができる。As described above, according to the present invention, since the stamped portion of the metal plate is not covered with the sealing material layer, the expensive rubber paint can be saved without wasting, and the punching process can be performed. Since the step, the bead to be the inclined part, and the forming process of the folded part are not separated, the press process can be efficiently performed, and the metal gasket having the sealing material layer on the surface of the metal plate can be manufactured at a lower cost than before. be able to. Further, according to the present invention, since the sealing material layer is coated on the surface of the metal plate having steps and slopes, the thickness of the sealing material layer varies greatly, but the hardness of the sealing material layer is softer than before. Since it is selected in the range of 68 to 82, the sealing material layer has good sealing properties and sufficient flow resistance, and the gasket of the present invention can maintain good sealing performance.
【図1】本発明の第1実施例のガスケットの平面図。FIG. 1 is a plan view of a gasket according to a first embodiment of the present invention.
【図2】図1のA−A線による拡大断面図。FIG. 2 is an enlarged cross-sectional view taken along the line AA of FIG.
【図3】本発明の第2実施例についての図2と同様な断
面図。FIG. 3 is a sectional view similar to FIG. 2 of a second embodiment of the present invention.
5 燃焼室用開口 6 液体通路穴 7 ボルト穴 9 山形ビード 10 ステップビード 12 シール材層(硬度68〜82) 13 シール材層 5 Combustion chamber opening 6 Liquid passage hole 7 Bolt hole 9 Angled bead 10 Step bead 12 Sealing material layer (hardness 68 to 82) 13 Sealing material layer
【手続補正書】[Procedure amendment]
【提出日】平成7年6月23日[Submission date] June 23, 1995
【手続補正1】[Procedure Amendment 1]
【補正対象書類名】図面[Document name to be corrected] Drawing
【補正対象項目名】図3[Name of item to be corrected] Figure 3
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図3】 [Figure 3]
Claims (2)
板が流体流通穴及びボルト穴を有し、該流体流通穴を囲
繞しシールするビード、折返し等の段差もしくは傾斜部
を備え、上記穴の打抜き加工及び上記段差もしくは傾斜
部の形成加工の後に被覆された金属板表面の加硫ゴムか
らなるシール材層がJISK6301に規定の硬度で6
8乃至82であることを特徴とする金属ガスケット。1. A metal plate having at least one metal plate, the metal plate having a fluid passage hole and a bolt hole, and a step or sloped portion such as a bead or a fold that surrounds and seals the fluid passage hole. After the punching process and the step or slope forming process described above, the sealing material layer made of vulcanized rubber on the surface of the metal plate has a hardness of 6 according to JIS K6301.
A metal gasket characterized by being 8 to 82.
加工並びに該流体流通穴を囲繞しシールするビード、折
返し等の段差もしくは傾斜部を形成する加工を金属板に
施したのち、該金属板の表面にゴム、加硫剤等を溶剤に
溶解した加硫可能なゴム塗料を塗装し、次いで該塗膜を
加熱加硫し金属板の表面にJISK6301に規定の硬
度で68乃至82の硬さを有するシール材層を形成する
ことを特徴とする金属ガスケットの製造方法。2. A metal plate, which is subjected to a punching process for punching a fluid flow hole and a bolt hole and a process for forming a step or a sloped portion such as a bead, a fold or the like which surrounds and seals the fluid flow hole. A vulcanizable rubber paint in which a rubber, a vulcanizing agent, etc. are dissolved in a solvent is applied to the surface of the metal plate, and then the coating film is heat-vulcanized to a hardness of 68 to 82 with a hardness specified in JIS K6301. A method of manufacturing a metal gasket, comprising forming a sealing material layer having:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14558595A JPH08312785A (en) | 1995-05-18 | 1995-05-18 | Metallic gasket and manufacture thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14558595A JPH08312785A (en) | 1995-05-18 | 1995-05-18 | Metallic gasket and manufacture thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH08312785A true JPH08312785A (en) | 1996-11-26 |
Family
ID=15388499
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14558595A Pending JPH08312785A (en) | 1995-05-18 | 1995-05-18 | Metallic gasket and manufacture thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH08312785A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008101577A (en) * | 2006-10-20 | 2008-05-01 | Sanyo Electric Co Ltd | Compressor and its manufacturing method |
JP2008138599A (en) * | 2006-12-01 | 2008-06-19 | Sanyo Electric Co Ltd | Compressor and its manufacturing method |
WO2015083533A1 (en) * | 2013-12-06 | 2015-06-11 | Nok株式会社 | Cylinder head gasket |
JPWO2017099206A1 (en) * | 2015-12-11 | 2018-09-13 | Nok株式会社 | Metal gasket |
-
1995
- 1995-05-18 JP JP14558595A patent/JPH08312785A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008101577A (en) * | 2006-10-20 | 2008-05-01 | Sanyo Electric Co Ltd | Compressor and its manufacturing method |
JP2008138599A (en) * | 2006-12-01 | 2008-06-19 | Sanyo Electric Co Ltd | Compressor and its manufacturing method |
WO2015083533A1 (en) * | 2013-12-06 | 2015-06-11 | Nok株式会社 | Cylinder head gasket |
JPWO2017099206A1 (en) * | 2015-12-11 | 2018-09-13 | Nok株式会社 | Metal gasket |
US11248704B2 (en) | 2015-12-11 | 2022-02-15 | Nok Corporation | Metal gasket |
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