DE932530C - Gasket, preferably cylinder head gasket - Google Patents
Gasket, preferably cylinder head gasketInfo
- Publication number
- DE932530C DE932530C DEL19629A DEL0019629A DE932530C DE 932530 C DE932530 C DE 932530C DE L19629 A DEL19629 A DE L19629A DE L0019629 A DEL0019629 A DE L0019629A DE 932530 C DE932530 C DE 932530C
- Authority
- DE
- Germany
- Prior art keywords
- gasket
- cylinder head
- preferably cylinder
- seal
- gamma radiation
- 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
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F11/00—Arrangements of sealings in combustion engines
- F02F11/002—Arrangements of sealings in combustion engines involving cylinder heads
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
Description
Dichtung, vorzugsweise Zylinderkopfdichtung Von vielen Dichtungen, hauptsächlich aber von Zylinderkopfdichtungen, fordert man gleichzeitig gute Abdichtfähigkeit bei geringen AnpreBdrücken, hohe Warmfestigkeit sowie die Möglichkeit, die Dichtung nachträglich ohne Festkleben an den Dichtflächen auszubauen.Gasket, preferably cylinder head gasket Of many gaskets, but mainly from cylinder head gaskets, good sealing properties are required at the same time with low contact pressures, high heat resistance and the possibility of the seal to be removed subsequently without sticking to the sealing surfaces.
Diese Forderungen erfüllen z. B. Dichtungen, die aus einer Metalleinlage mit beiderseitiger Asbestauflage bestehen, wobei die Asbestauflage mit einer Tränkung aus vorwiegend organischen Substanzen versehen und einer Oberflächenbehandlung unter Verwendung von Grafit oder einem anderen der Klebung entgegenwirkenden Mittel unterzogen ist.These requirements meet z. B. Seals made from a metal insert with double-sided asbestos coating, with the asbestos coating with an impregnation made of predominantly organic substances and subjected to a surface treatment Use of graphite or any other anti-adhesive agent is.
Solche Dichtungen erfordern jedoch eine sehr sorgfältige Abstimmung der verschiedenen verwendeten Stoffe, Behandlungsmittel und Verarbeitungsgänge aufeinander, wenn die verlangten Eigenschaften alle zugleich erfüllt sein sollen.However, such seals require very careful coordination of the various substances, treatment agents and processing steps used, one on top of the other, when the required properties are all to be fulfilled at the same time.
Nachdem bei Zylinderkopfdichtungen das Klebeproblem mit der Wirkung freier Valenzen in Beziehung gebracht werden muB, wurde die Lösung dieses Problems dadurch erstrebt, daB man die freien Valenzen der Dichtungsoberfläche absättigt. Dies ist bekanntlich durch Wärmebehandlung (Aushärtung) möglich. Doch geht hierbei die Dichtfähigkeit sofort merklich zurück.After the sticking problem with the effect with cylinder head gaskets free valences must be related, the solution to this problem thereby striving to saturate the free valences of the sealing surface. As is well known, this is possible through heat treatment (hardening). But this is possible the ability to seal immediately noticeably decreases.
Nun sind, wie schon aus der Kunststoffliteratur bekannt ist, Gammastrahlen hoher Intensität in der Lage, die Moleküle von polymerisations- oder kondensationsfähigen Substanzen so zu aktivieren, daB die freien Valenzen auf verschiedene Arten abgesättigt werden, sei es durch Vernetzung, sei es durch zusätzlichen Einbau von Gasmolekülen (z. B,. Sauerstoff). Dieser Effekt wird z. B. zur Erhöhung der Warmfestigkeit von Gegenständen aus Polyäthylen bereits technisch ausgenutzt.Now, as is already known from the plastics literature, gamma rays are high intensity able to polymerize or condense the molecules To activate substances in such a way that the free valences are saturated in various ways be it through networking, be it through additional installation of gas molecules (e.g. oxygen). This effect is z. B. to increase the Heat resistance of objects made of polyethylene has already been used for technical purposes.
Es wurde nun gefunden, daß man nicht nur die Fertigung vereinfachen, sondern auch die Dgenschaften einer Dichtung verbessern kann, wenn man die mit passenden polymerisations-, kondensations-oder vernetzungsfähigen Substanzen getränkte Dichtung der Einwirkung von Gammastrahlen hoher Intensität aussetzt. Dabei. ist es grundsätzlich gleichgültig, ob, man die Gammastrahlen aus einer Röntgenröhre ausreichender Spannung, aus einer radioaktiven- Substanz oder aus einer anderen Strahlenquelle bezieht. Doch ist es möglich und zweckmäßig, die verwendete Strahlung nach Härte (Wellenlänge), Einwirkungsdauer üsw. der verwendeten Tränkung anzupassen. Auch kann die Einwirkung der Gammastrahlen mit der Einwirkung anderer Mittel, z. B. einer Druck- oder Temperaturveränderung oder einer bestimmten Gasatmosphäre od. dgl., kombiniert werden.It has now been found that not only can production be simplified, but also the properties of a seal can be improved if you match them with Sealing impregnated with substances capable of polymerization, condensation or crosslinking exposure to high intensity gamma rays. Included. it is basically irrespective of whether the gamma rays from an X-ray tube are of sufficient voltage, from a radioactive substance or from another radiation source. But it is possible and expedient to determine the radiation used according to hardness (wavelength), Duration of action to adapt to the impregnation used. Can also be the action the gamma rays with the action of other means, e.g. B. a pressure or temperature change Or a certain gas atmosphere or the like., Combined.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL19629A DE932530C (en) | 1954-08-15 | 1954-08-15 | Gasket, preferably cylinder head gasket |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL19629A DE932530C (en) | 1954-08-15 | 1954-08-15 | Gasket, preferably cylinder head gasket |
Publications (1)
Publication Number | Publication Date |
---|---|
DE932530C true DE932530C (en) | 1955-09-01 |
Family
ID=7261472
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEL19629A Expired DE932530C (en) | 1954-08-15 | 1954-08-15 | Gasket, preferably cylinder head gasket |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE932530C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3038422A1 (en) * | 1980-10-08 | 1982-05-13 | Wolfgang Dipl.-Chem. Dr. 1000 Berlin Ortlepp | Vehicle component seal coating - with radiation-hardenable solvent-free compsn. contg. acrylate ester and and/or isocyanate |
DE3339434A1 (en) * | 1983-10-29 | 1985-05-15 | Elring Dichtungswerke Gmbh, 7012 Fellbach | Flat packing plate and process for its production |
DE3445870A1 (en) * | 1984-12-15 | 1986-06-26 | Goetze Ag, 5093 Burscheid | IMPREGNATED FLAT GASKET, IN PARTICULAR CYLINDER HEAD GASKET FOR COMBUSTION ENGINES, AND THEIR PRODUCTION PROCESS |
-
1954
- 1954-08-15 DE DEL19629A patent/DE932530C/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3038422A1 (en) * | 1980-10-08 | 1982-05-13 | Wolfgang Dipl.-Chem. Dr. 1000 Berlin Ortlepp | Vehicle component seal coating - with radiation-hardenable solvent-free compsn. contg. acrylate ester and and/or isocyanate |
DE3339434A1 (en) * | 1983-10-29 | 1985-05-15 | Elring Dichtungswerke Gmbh, 7012 Fellbach | Flat packing plate and process for its production |
DE3445870A1 (en) * | 1984-12-15 | 1986-06-26 | Goetze Ag, 5093 Burscheid | IMPREGNATED FLAT GASKET, IN PARTICULAR CYLINDER HEAD GASKET FOR COMBUSTION ENGINES, AND THEIR PRODUCTION PROCESS |
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