DE3543875A1 - Anti-corrosive coating for metallic workpieces, especially for fine mechanical precision parts - Google Patents

Anti-corrosive coating for metallic workpieces, especially for fine mechanical precision parts

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Publication number
DE3543875A1
DE3543875A1 DE19853543875 DE3543875A DE3543875A1 DE 3543875 A1 DE3543875 A1 DE 3543875A1 DE 19853543875 DE19853543875 DE 19853543875 DE 3543875 A DE3543875 A DE 3543875A DE 3543875 A1 DE3543875 A1 DE 3543875A1
Authority
DE
Germany
Prior art keywords
protective layer
vapor
silicone
workpiece
trifluorinated
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.)
Granted
Application number
DE19853543875
Other languages
German (de)
Other versions
DE3543875C2 (en
Inventor
Herbert Dr.rer.nat. 7000 Stuttgart Bauser
Günter Dr.rer.nat. Hellwig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Priority to DE19853543875 priority Critical patent/DE3543875A1/en
Publication of DE3543875A1 publication Critical patent/DE3543875A1/en
Application granted granted Critical
Publication of DE3543875C2 publication Critical patent/DE3543875C2/de
Granted legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/60—Deposition of organic layers from vapour phase
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/06—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of metallic material
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/06—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of metallic material
    • C23C16/18—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of metallic material from metallo-organic compounds
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/56—After-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2506/00—Halogenated polymers
    • B05D2506/10—Fluorinated polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2518/00—Other type of polymers
    • B05D2518/10—Silicon-containing polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
    • B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
    • B05D3/065—After-treatment

Abstract

In order to obtain anti-corrosive coatings functioning reliably over prolonged periods in the form of extremely thin protective coatings which do not affect the geometry of the workpiece, a conventional vapour deposition process is employed to apply a coating of low-molecular weight trifluorinated silicon compounds to the workpiece. The coating preferably has a thickness of approximately 2-10 nm and after the vapour deposition process is crosslinked by means of UV irradiation. The coating, which does not incorporate any water, largely prevents demixing and enrichment processes on the workpiece surface.

Description

Korrosionsschutz schicht für metallische Werkstücke,Corrosion protection layer for metallic workpieces,

insbesondere feinmechanische Präzisionsteile Die Erfindung betrifft eine Korrosionsschutz schicht für metallische Werkstücke, insbesondere feinmechanische Präzisionsteile nach dem Cattungsbegriff von Anspruch 1.in particular fine mechanical precision parts. The invention relates to a corrosion protection layer for metallic workpieces, especially precision mechanical workpieces Precision parts according to the categorization of claim 1.

Es ist bereits bekannt, metallische Werkstücke, deren Geometrie durch den Auftrag einer Lackschicht oder einer galvanischen Schutzschicht üblicher Art zu stark verändert würde, mittels einer dünnen Silikonschicht gegen Korrosion zu schützen. Solche Silikonschichten können jedoch die Korrosion nicht zuverlässig verhindern, weil sie Feinrisse aufweisen, die die Diffusion von Wasserdampf zulassen und dadurch Ausgangspunkte für die Korrosion bilden.It is already known, metallic workpieces, whose geometry by the application of a layer of lacquer or a galvanic protective layer of the usual type would be changed too much by means of a thin silicone layer against corrosion protection. However, such silicone layers cannot reliably prevent corrosion prevent because they have fine cracks that allow the diffusion of water vapor and thereby form starting points for corrosion.

Beispiele für Teile, deren Funktion bereits durch den Auftrag sehr geringer Schichtdicken stark beeinträchtigt wird, sind Werkstücke mit Feinpassungen, deren Toleranzfelder oft nur wenige tausendstel Millimeter betragen, oder Kapillaren hoher Präzision, bei welchen der Innendurchmesser in der vierten Potenz in die Benetzungsverhältnisse eingeht.Examples of parts whose function has already been greatly reduced by the order low layer thicknesses are severely impaired, workpieces with fine fits are whose tolerance fields are often only a few thousandths of a millimeter, or capillaries high precision, in which the inside diameter in the fourth power in the wetting ratios comes in.

Es ist das Ziel der vorliegenden Erfindung, eine Korrosionsschutzschicht der eingangs genannten Art in der Weise weiter zu entwickeln, daß trotz eines extrem dünnen, die Funktion von Präzisionsteilen nicht behindernden Schichtauftrages eine zuverlässige Korrosionsschutzwirkung erzielt wird.It is the aim of the present invention to provide a corrosion protection layer of the type mentioned to develop in such a way that despite one extreme thin layer application that does not hinder the function of precision parts reliable corrosion protection effect is achieved.

Gemäß der Erfindung wird die gestellte Aufgabe durch die im kennzeichnenden Teil von Anspruch 1 aufgeführten Merkmale gelöst.According to the invention, the object is set by the in the characterizing Part of claim 1 listed features solved.

Die erfindungsgemäß vorgesehenen trifluorierten Silikonverbindungen ergeben selbst bei einer Dicke von 2-10 nm einen über lange Zeiträume zuverlässigen Korrosionsschutz.The trifluorinated silicone compounds provided according to the invention result in a long-term reliable one even with a thickness of 2-10 nm Corrosion protection.

Die Beschichtung kann durch ein einfaches Einführen des Werkstückes in den Dampf einer trifluorierten Silikonverbindung erreicht werden, welches nur einen sehr geringen, auch für kleinere Firmen erschwinglichen apparativen Aufwand mit sich bringt. Die Beschichtung kann weiter mittels eines einfachen chemischen Aufdampfverfahrens bewerkstelligt werden oder durch ein gängiges Verfahren zur Herstellung dünner Schichten, wie z.B. das CVD-Verfahren.The coating can be applied by simply inserting the workpiece can be achieved in the vapor of a trifluorinated silicone compound, which only very little expenditure on equipment, which is affordable even for smaller companies brings with it. The coating can be done further by means of a simple chemical Evaporation process can be accomplished or by a common method of production thin layers, such as the CVD process.

Die Korrosionsschutzwirkung und die mechanische Festigkeit der Schutzschicht läßt sich in ebenfalls sehr einfacher Weise mittels einer UV-Bestrahlung noch weiter steigern.The anti-corrosion effect and the mechanical strength of the protective layer can also be further extended in a very simple manner by means of UV irradiation increase.

Die erfindungsgemäße Korrosionsschutz schicht macht eine zusätzliche Lackierung der zu schützenden Teile auch bei solchen Teilen entbehrlich, welche während ihres Gebrauches sehr ungünstigen klimatischen Bedingungen unterliegen, wie z.B. hohe Luftfeuchtigkeit oder Seewassereinwirkung.The anti-corrosion layer according to the invention makes an additional one Painting of the parts to be protected is also dispensable for those parts which are subject to very unfavorable climatic conditions during their use, such as high humidity or the effects of seawater.

Darüberhinaus kann die erfindungsgemäße Schutzschicht aufgrund ihrer ölabstoßenden Wirkung aber auch als Lackierverhinderer für Oberflächenteile von Werkstücken dienen, welche von einem auf das Werkstück angewendeten Lackierprozeß nicht erfaßt werden sollen.In addition, the protective layer according to the invention can due to its oil-repellent effect but also as a paint inhibitor for surface parts of Serving workpieces which are from a painting process applied to the workpiece should not be recorded.

Im Einzelnen besteht für die erfindungsgemäße Korrosionsschutzschicht folgende Aufgabenstellung: 1. sie soll möglichst dünn sein, so daß der Abstand der zu schützenden Oberfläche von einer im festgelegten Abstand angeordneten Gegenfläche praktisch unverändert bleibt.In detail there is for the anti-corrosion layer according to the invention the following task: 1. it should be as thin as possible, so that the distance between the surface to be protected from an opposing surface arranged at a specified distance remains practically unchanged.

2. sie soll auch bei starken klimatischen Änderungen mit großer Sicherheit auf der zu schützenden Oberfläche haften, 3. sie soll oleophob sein, um einen zusätzlichen Oberflächenschutz, wie z.B. eine Lackierung, entbehrlich zu machen oder im Falle eines lackierten Teiles bestimmte Oberflächen von der Lackierung ausnehmen zu können.2. It should be extremely safe even in the event of severe climatic changes adhere to the surface to be protected, 3. it should be oleophobic in order to provide additional Surface protection, such as painting, can be dispensed with or in the case to be able to exclude certain surfaces from the painting of a painted part.

Die Erfindung geht von der Tatsache aus, daß z.B. eisenhaltige Legierungen Entmischungen im Volumen und Anreicherung von Eisen an der Metalloberfläche zeigen. Durch diese Entmischungen entstehen auf der Oberfläche galvanische Lokalelemente, die die Korrosion beschleunigen.The invention is based on the fact that, for example, ferrous alloys Show segregation in volume and enrichment of iron on the metal surface. This segregation creates galvanic local elements on the surface, which accelerate corrosion.

Es hat sich gezeigt, daß die Korrosionsabläufe erheblich verlangsamt oder sogar ganz unterbunden werden können, wenn auf die Oberflächen von feinmechanischen metallischen Werkstücken eine Schutzschicht von trifluorierten Silikonverbindungen aufgebracht wird. Eine derartige Schutzschicht verringert die Eisenanreicherung auf der Legierungsoberfläche. Diese Schutzschicht verhindert auch weitgehend die Korrosionsbildung im Vergleich zu derjenigen auf einer ungeschützten Nickeleisen-und einer ungeschützten Eisenoberfläche.It has been shown that the corrosion processes slowed down considerably or even can be prevented entirely if on the surfaces of precision mechanics metallic workpieces a protective layer of trifluorinated silicone compounds is applied. Such a protective layer reduces the accumulation of iron on the alloy surface. This protective layer also largely prevents that Corrosion formation compared to that on an unprotected nickel-iron and an unprotected iron surface.

Die Stabilität der erfindungsgemäßen, etwa 2-10 nm starken Schutzschicht und ihre korrosionsverhindernde Wirksamkeit wurde durch eine 28-tägige Klimaauslagerung getestet. Die Klimabedingungen waren 100 % Luftfeuchtigkeit bei einer Temperatur von 1000C. In Abhängigkeit dieser Klimabedingungen wurde mit oberflächenspektroskopischen Methoden die Korrosionsbildung und die Entmischung (Segregation) gemessen, und zwar mit ESCA (Elektronenspektroskopie für die chemische Analyse) und AES (Augerelektronenspektroskopie). Beide Verfahren zeigten die Ausbildung von Fe2O3 und NiO auf Legierungen des NiFe sowie die durch Segregationsvorgänge hervorgerufene Fe-Anreicherung auf NiFe-Legierungen. Weiter zeigte sich, daß auf geschützten und klimagelagerten Probekörpern die Oxidbildung und die Entmischung erheblich langsamer abläuft als bei ungeschützten, klimagelagerten Probekörpern. Zum Teil konnte bei geschützten und klimagelagerten Probekörpern überhaupt keine Korrosion nachgewiesen werden.The stability of the protective layer according to the invention, about 2-10 nm thick and their anti-corrosive effectiveness was confirmed by a 28-day climatic exposure tested. The climatic conditions were 100% humidity at one temperature from 1000C. Depending on these climatic conditions, surface spectroscopy was used Methods measured the formation of corrosion and segregation, namely with ESCA (electron spectroscopy for chemical analysis) and AES (Auger electron spectroscopy). Both procedures showed the formation of Fe2O3 and NiO on alloys of NiFe and the Fe enrichment caused by segregation processes NiFe alloys. It was also shown that on protected and climatically stored test specimens oxide formation and segregation take place much more slowly than with unprotected, climatically stored test specimens. In some cases it was possible to use sheltered and climatically stored No corrosion at all can be detected on test specimens.

Zur Vornahme der Beschichtung werden die zu schützenden Werkstückoberflächen zunächst in einem organischen, z.B.The workpiece surfaces to be protected are used to carry out the coating initially in an organic, e.g.

leicht basischen Lösungsmittel im Ultraschallbad bei Zimmertemperatur gereinigt. Die gereinigte Werkstückoberfläche wird dann zum Zwecke der Entfernung von adsorbiertem Wasser auf etwa 1600C erhitzt. Die 1600C heiße Oberfläche wird in den Dampf einer auf etwa 1200 erwärmten Trifluorpropylmethylsilikonverbindung oder Trifluorphenylmethylsiliconverbindung gehalten. Der auf der Werkstückoberfläche entstandene Film aus adsorbierten Trifluorpropylmethylsilicon-Molekülen oder Trifluorphenylmethyl-Molekülen wird mit dem Werkstück im Vakuum in das W-Licht (Wellenlänge etwa 370 nm) einer brennenden Quecksilberdampfhochdrucklampe gebracht und so vernetzt und stabilisiert.slightly basic solvent in an ultrasonic bath at room temperature cleaned. The cleaned workpiece surface is then used for removal purposes heated by adsorbed water to about 1600C. The 1600C hot surface will into the vapor of a trifluoropropylmethyl silicone compound heated to about 1200 or trifluorophenylmethyl silicone compound held. The one on the workpiece surface film formed from adsorbed trifluoropropylmethylsilicone molecules or trifluorophenylmethyl molecules is with the workpiece in the vacuum in the UV light (wavelength about 370 nm) a brought a burning high-pressure mercury lamp and thus networked and stabilized.

Auch mittels der vorstehend erwähnten CVD-Methode (chemical vapor deposition method) kann das Aufbringen der erfindungsgemäß als Korrosionsschutzschicht vorgesehenen CF3-Verbindungen vorgenommen werden, wodurch eine besonders dichte Präparation auf der Werkstückoberfläche ermöglicht wird.Also by means of the aforementioned CVD method (chemical vapor deposition method) can be the application of the invention as a corrosion protection layer provided CF3 connections are made, creating a particularly tight Preparation on the workpiece surface is made possible.

Eine vorteilhafte Anwendung der Erfindung besteht im Korrosionsschutz für hochpräzise Kugel-, Rollen- und Gleitlager schnellaufender Systeme in der Raumfahrt- und Satellitentechnologie. Dabei werden Lager mit hoher Kugel- und Zylindersymmetrie aus Bauteilen mit geringster Rauigkeit benötigt.An advantageous application of the invention consists in corrosion protection for high-precision ball, roller and plain bearings of high-speed systems in the aerospace industry and satellite technology. Bearings with high spherical and cylindrical symmetry are used required from components with the lowest possible roughness.

Die Rauhigkeit dieser Lagerbauteile darf auch nach langer Einsatzzeit nicht zunehmen, wobei lokale Korrosionsangriffe die Rauhigkeit in unzulässiger Weise vergrößern können.The roughness of these bearing components is allowed even after a long period of use do not increase, local corrosion attacks the roughness in an impermissible manner can enlarge.

Claims (9)

Patentansprüche 1. Korrosionsschutzschicht für metallische Werkstücke, insbesondere feinmechanische Präzisionsteile, welche Silikonverbindungen enthält, dadurch gekennzeichnet , daß sie aus trifluorierten Silikonverbindungen besteht.Claims 1. Corrosion protection layer for metallic workpieces, especially fine mechanical precision parts that contain silicone compounds, characterized in that it consists of trifluorinated silicone compounds. 2. Schutzschicht nach Anspruch 1, d dadurch c h a e 3c e n n z e i c h n e t , daß sie eine Dicke von 2 bis 10 nm aufweist. e 2. Protective layer according to claim 1, d thereby c h a e 3c e n n z e i c h n e t that it has a thickness of 2 to 10 nm. e 3. Schutzschicht nach einem der Ansprüche 1 - 2, dadurch gekennzeichnet , daß sie aus ausgedampftem, vorzugsweise nach dem Aufdampfen vernetzten Trifluorpropylmethylsilicon besteht.3. protective layer after one of claims 1 - 2, characterized in that it consists of evaporated, preferably Trifluoropropylmethylsilicone crosslinked after vapor deposition. 4. Schutzschicht nach einem der Ansprüche 1 - 3, dadurch gek ennzeichnet , daß sie aus aufgedampftem, vorzugsweise nach dem Aufdampfen vernetzten Trifluorphenylmethylsilicon besteht.4. Protective layer according to one of claims 1 - 3, characterized in that they are made of vapor-deposited, preferably cross-linked after vapor-deposition, trifluorophenylmethyl silicone consists. 5. Verfahren zum Aufbringen einer Schutzschicht nach einem der Ansprüche 1-4, dadurch gekennzeichnet , daß die zu schützende, zur Entfernung von Wasserdampf auf etwa 140-180° C, vorzugsweise 120-1400 C aufgeheizte Werkstückoberfläche solange in den Dampf einer trifluorierten Silikonverbindung, vorzugsweise Trifluorphenylmethylsilicon oder Trifluorpropylmethyls ilicon eingeführt wird, bis der Oberfläche eine etwa 2-10 nm dicke Schicht der Silikonverbindung anhaftet.5. A method for applying a protective layer according to any one of the claims 1-4, characterized in that the to be protected, to remove water vapor workpiece surface heated to about 140-180 ° C, preferably 120-1400 C for as long into the vapor of a trifluorinated silicone compound, preferably trifluorophenylmethyl silicone or Trifluorpropylmethylsilicon is introduced until the surface is about 2-10 nm thick layer of silicone compound adheres. 6. Verfahren nach Anspruch 5, dadurch gekennzeichnet , daß die zu schützende Oberfläche vor dem Aufbringen der Schutzschicht bei Zimmertemperatur im Ultraschallbad mit einem organischen Lösungsmittel gereinigt wird.6. The method according to claim 5, characterized in that the to protective surface before applying the protective layer at room temperature is cleaned in an ultrasonic bath with an organic solvent. 7. Verfahren nach Anspruch 5 oder 6, dadurch gekennzeichnet , daß die der Oberfläche anhaftende Schutzschicht unter Anwendung von UV-Strahlung vernetzt und stabilisiert wird.7. The method according to claim 5 or 6, characterized in that the protective layer adhering to the surface is crosslinked using UV radiation and is stabilized. 8. Verfahren nach Anspruch 7, dadurch gekennzeichnet , daß die Vernetzung mittels UV-Strahlung geeigneter Wellenlänge (kleiner als 390 nm)- erfolgt.8. The method according to claim 7, characterized in that the crosslinking by means of UV radiation of a suitable wavelength (less than 390 nm). 9. Verfahren nach Anspruch 8, dadurch gekennzeichnet , daß die Vernetzung mittels einer Quecksilberdampf-Hochdrucklampe erfolgt.9. The method according to claim 8, characterized in that the crosslinking takes place by means of a high pressure mercury vapor lamp.
DE19853543875 1985-01-17 1985-12-12 Anti-corrosive coating for metallic workpieces, especially for fine mechanical precision parts Granted DE3543875A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19853543875 DE3543875A1 (en) 1985-01-17 1985-12-12 Anti-corrosive coating for metallic workpieces, especially for fine mechanical precision parts

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Application Number Priority Date Filing Date Title
DE3501393 1985-01-17
DE19853543875 DE3543875A1 (en) 1985-01-17 1985-12-12 Anti-corrosive coating for metallic workpieces, especially for fine mechanical precision parts

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DE3543875A1 true DE3543875A1 (en) 1986-07-17
DE3543875C2 DE3543875C2 (en) 1989-08-03

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0367438A1 (en) * 1988-10-19 1990-05-09 Xaar Limited Method of forming adherent fluorosilane layer on a substrate and ink jet recording head containing such a layer

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4085248A (en) * 1975-08-22 1978-04-18 Robert Bosch Gmbh Method to apply a protective layer to the surface of optical reflectors, and so-made reflectors, particularly automotive vehicle head lamps
US4120995A (en) * 1977-10-18 1978-10-17 International Business Machines Corporation Process for bonding a durable low surface energy coating

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4085248A (en) * 1975-08-22 1978-04-18 Robert Bosch Gmbh Method to apply a protective layer to the surface of optical reflectors, and so-made reflectors, particularly automotive vehicle head lamps
US4120995A (en) * 1977-10-18 1978-10-17 International Business Machines Corporation Process for bonding a durable low surface energy coating

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0367438A1 (en) * 1988-10-19 1990-05-09 Xaar Limited Method of forming adherent fluorosilane layer on a substrate and ink jet recording head containing such a layer
US5010356A (en) * 1988-10-19 1991-04-23 Xaar Limited Method of forming an adherent fluorosilane layer on a substrate and ink jet recording head containing such a layer

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DE3543875C2 (en) 1989-08-03

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