DE3245827A1 - LUBRICANT FILM FOR PREVENTING EATING OF SLIDING METAL SURFACES - Google Patents

LUBRICANT FILM FOR PREVENTING EATING OF SLIDING METAL SURFACES

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Publication number
DE3245827A1
DE3245827A1 DE19823245827 DE3245827A DE3245827A1 DE 3245827 A1 DE3245827 A1 DE 3245827A1 DE 19823245827 DE19823245827 DE 19823245827 DE 3245827 A DE3245827 A DE 3245827A DE 3245827 A1 DE3245827 A1 DE 3245827A1
Authority
DE
Germany
Prior art keywords
lubricant
lubricant film
powder
sliding metal
dipl
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.)
Withdrawn
Application number
DE19823245827
Other languages
German (de)
Inventor
Kazuo Kobe Fujiwara
Toshio Fukutsuka
Kazutoshi Shimogori
Keiichi Kobe Wada
Etsuo Osaka Yamamoto
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to GB08235270A priority Critical patent/GB2131828B/en
Priority to DE19823245827 priority patent/DE3245827A1/en
Publication of DE3245827A1 publication Critical patent/DE3245827A1/en
Withdrawn legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M103/00—Lubricating compositions characterised by the base-material being an inorganic material
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    • C10M103/00—Lubricating compositions characterised by the base-material being an inorganic material
    • C10M103/02—Carbon; Graphite
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    • C10M103/04—Metals; Alloys
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    • C10M107/20—Lubricating compositions characterised by the base-material being a macromolecular compound containing oxygen
    • C10M107/22—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M107/28—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate
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    • C10M107/20—Lubricating compositions characterised by the base-material being a macromolecular compound containing oxygen
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    • C10M111/00—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential
    • C10M111/04—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential at least one of them being a macromolecular organic compound
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    • C10M2209/1003—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds used as base material
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    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/0403—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/041—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds involving a condensation reaction
    • C10M2217/0415—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds involving a condensation reaction used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/042—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds between the nitrogen-containing monomer and an aldehyde or ketone
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/042—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds between the nitrogen-containing monomer and an aldehyde or ketone
    • C10M2217/0425—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds between the nitrogen-containing monomer and an aldehyde or ketone used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/043—Mannich bases
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/043—Mannich bases
    • C10M2217/0435—Mannich bases used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/044—Polyamides
    • C10M2217/0443—Polyamides used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/045—Polyureas; Polyurethanes
    • C10M2217/0453—Polyureas; Polyurethanes used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/046—Polyamines, i.e. macromoleculars obtained by condensation of more than eleven amine monomers
    • C10M2217/0465—Polyamines, i.e. macromoleculars obtained by condensation of more than eleven amine monomers used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/015—Dispersions of solid lubricants
    • C10N2050/02—Dispersions of solid lubricants dissolved or suspended in a carrier which subsequently evaporates to leave a lubricant coating

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  • Health & Medical Sciences (AREA)
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  • Engineering & Computer Science (AREA)
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Description

Schmiermittelfilm zur Verhinderung des Fressens von gleitenden Metalloberflächen Lubricant film to prevent the seizure of sliding metal surfaces

Die Erfindung betrifft einen neuen Schmiermittelfilm, der auf den Oberflächen von unter hohem Oberflächendruck gleitenden Metallteilen . gebildet werden soll, um das Fressen zu verhindern.The invention relates to a new lubricant film which on the surfaces of metal parts sliding under high surface pressure. should be formed around the To prevent fretting.

Fressen erfolgt an Metalloberflächen, die sichScoring takes place on metal surfaces that are

in gleitendem Kontakt unter hohem Oberflächendruck befinden, insbesondere wenn das Metall geringe Wärmeleitfähigkeit und einen großen Wärmeausdehnungskoeffizienten hat, wie rostfreier Stahl, was oft Anlaß zu Schwierigkeiten bei verschiedenen industriellen Maschinen gibt."are in sliding contact under high surface pressure, especially if the metal has low thermal conductivity and a large coefficient of thermal expansion, such as stainless steel, which often gives rise to difficulties in various industrial machines. "

Wenn beispielsweise Fressen erfolgt, wenn die mit Gewinde versehenen Enden von Ölbohrungsrohren ver-„ schraubt werden, muß die Arbeit des Verschraubens und Aufschraubens. unterbrochen werden, um das Rohr aufzuziehen und das defekte Rohrende abzuschneiden und ein neues Gewinde auf das Rohrende aufzubringen, was beträchtlichen Aufwand an Zeit und Arbeitskraft erfordert. Außer bei ölbohrungsrohren gilt dies auch für andere metallische gleitende Teile, die hohem Oberflächendruck ausgesetzt sind.For example, if seizure occurs when the threaded ends of oil well pipes become must be screwed, the work of screwing and unscrewing. interrupted to open the pipe and cut off the defective pipe end and a new thread to apply the pipe end, which requires considerable effort Requires time and manpower. Except for oil well pipes This also applies to other metallic sliding parts that are exposed to high surface pressure.

Es wurden bis jetzt verschiedene Schmiermittel zur Verhinderung der Reibungsabnutzung oder des Fressens von metallisehen gleitenden Teilen entwickelt, die in den meisten Fällen ein festes Schmiermittel, einen Schmiermittelzusatz und/oder ein organisches Harz enthalten. Z. B. wird in den US-PS'en 3 051 586, 4 303 537, 3 146 142 und 4 206 060Various lubricants have heretofore been used for preventing frictional wear or galling of metallic eyes sliding parts developed, which in most cases a solid lubricant, a lubricant additive and / or contain an organic resin. For example, U.S. Patents 3,051,586, 4,303,537, 3,146,142 and 4,206,060

und der japanischen Patentpublikation 51-43558 ein Schmiermittel auf der Basis eine's MoS2-Harzsystems vorgeschlagen. Ein Schmiermittel auf der Basis eines MoS2-Sb203-Harzsystems wird in den US-PS'en 3 314 885 und 3 882 030 und in "Kirk-Othmer: Encyclopedia of Chemical Technology" gezeigt und ein Schmiermittel auf der Basis eines Graphit-Harzsystems ist in der US-PS 2 335 958 beschrieben.and Japanese Patent Publication 51-43558 have proposed a lubricant based on a MoS 2 resin system. A lubricant based on a MoS 2 -Sb 2 0 3 resin system is shown in U.S. Patents 3,314,885 and 3,882,030 and in "Kirk-Othmer: Encyclopedia of Chemical Technology" and a lubricant based on a Graphite resin system is described in US Pat. No. 2,335,958.

Um das beste aus den Funktionen der Komponenten eines Schmiermittels zu machen und zufriedenstellende Schmiermitteleigenschaften unter schweren Betriebsbedingungen bei hohem Oberflächendruck aufrechtzuerhalten, sind die Arten und die Mischungsverhältnisse sowie die gegenseitigen Verhältnisse der jeweiligen Bestandteile wichtige Paktoren, die in diesem Zusammenhang in Betracht gezogen werden müssen. Die Schmiermittel der oben erwähnten Systeme oder Zusammensetzungen sind nicht notwendigerweise zufriedenstellend als Schmiermittel für gleitende Metalle unter hohem Oberflächendruck, und man kann nicht erwarten, daß sie ausreichende ' Wirkung zur Verhinderung der Reibungsabnutzung oder des Fressens haben.To get the most of the functions of the components of a lubricant to make and satisfactory lubricant properties under severe operating conditions with high surface pressure The species and the mixing ratios as well as the mutual ratios are to be maintained important factors of the respective constituents that have to be considered in this context. the Lubricants of the above-mentioned systems or compositions are not necessarily satisfactory as Lubricant for sliding metals under high surface pressure, and it cannot be expected to have sufficient effect of preventing frictional wear or the Have eating.

Die vorliegende Erfindung will das oben erwähnte Problem ausschalten und insbesondere einen Schmiermittelfilm bereitstellen, der die Reibungsabnutzung oder das Fressen von gleitenden Metallteilen unter hohem Oberflächendruck wirksam verhindern kann.The present invention aims at the above-mentioned problem switch off and in particular provide a lubricant film, which is effective against frictional wear or seizure of sliding metal parts under high surface pressure can prevent.

Gemäß einem Aspekt der Erfindung wird ein Schmiermittelfilm bereitgestellt, der enthält: ein festes Schmiermittel, enthaltend 60 bis 80 Gew.-% MoS2 oder MoS2 + Graphit, einen Schmiermittelzusatz, bestehend aus 10 bis 30 Gew.-% vonAccording to one aspect of the invention there is provided a lubricant film comprising: a solid lubricant containing 60 to 80% by weight MoS 2 or MoS 2 + graphite, a lubricant additive consisting of 10 to 30% by weight of

Sb "CU, Fe-Pulver, Zn-Pulver und/oder Silberpulver, und ein organisches Bindemittel, das aus mehr als 3 Gew.-% und weniger als 15 Gew.-% von Epoxyesterharz, Acrylharz und/oder Harnstoffharz besteht.
5Sb "CU, Fe powder, Zn powder and / or silver powder, and an organic binder composed of more than 3% by weight and less than 15% by weight of epoxy ester resin, acrylic resin and / or urea resin.
5

Diese und andere Ziele, Merkmale und Vorteile der Erfindung werden anhand der folgenden Beschreibung und den Ansprüchen, in Verbindung mit den beigefügten Zeichnungen, ersichtlich.
10These and other objects, features and advantages of the invention will become apparent from the following description and claims, taken in conjunction with the accompanying drawings.
10

In den Zeichnungen bedeutet:In the drawings:

Fig. 1 ist eine graphische Darstellung der Gleitzeit bis zum Auftreten des anfänglichen Fressens in Abhängigkeit vom Sb3O3-GeIIaIt ;1 is a graph of the flexitime until the occurrence of initial seizure as a function of the Sb 3 O 3 gel;

Fig. 2 bis 4 sind schematische-Ansichten einer Platten-Reiter-Reibung sprüfapparatur undFigures 2-4 are schematic views of plate-rider friction testing equipment and

* Fig. 5 ist ein Diagramm der Gleitzeit gegen den Reibungskoeffizienten für verschiedene Schmiermittel.* Figure 5 is a graph of sliding time versus coefficient of friction for various lubricants.

Der Schmiermittelfilm gemäß der Erfindung besteht aus einem festen Schmiermittel, einem Zusatz und einem organischen Harzbinder. Das feste Schmiermittel ist beispielsweise MoS3 oder MoS3 + Graphit, der Schmiermittelzusatz ist beispielsweise Sb3O3, Fe-Pulver, Zn-Pulver, Ag-Pulver oder ein Gemisch davon und das organische Harz ist beispielsweise ein Epoxyesterharz, ein Acrylharz, ein Harnstoffharz oder Gemisehe davon.The lubricant film according to the invention consists of a solid lubricant, an additive and an organic resin binder. The solid lubricant is, for example, MoS 3 or MoS 3 + graphite, the lubricant additive is, for example, Sb 3 O 3 , Fe powder, Zn powder, Ag powder or a mixture thereof, and the organic resin is, for example, an epoxy ester resin, an acrylic resin Urea resin or mixtures thereof.

Bezüglich des festen Schmiermittels enthält der Schmiermittelfilm gemäß der Erfindung MoS ~ oder MoS^ + Graphit, wieAs for the solid lubricant, the lubricant film contains according to the invention MoS ~ or MoS ^ + graphite, such as

oben erwähnt, in einer Menge von 60 bis 80 Gew.-%. Das feste Schmiermittel, welches die Hauptrolle bei der Schmierung spielt, erniedrigt den Reibungskoeffizienten und vermindert dadurch die Menge an Reibungswärme in den gleitenden Metallteilen unter hohem Oberflächendruck, um Fressen oder Abnutzung zu verhindern, und sollte daher im Bereich von 60 bis 80 Gew.-% gehalten werden.mentioned above, in an amount of 60 to 80% by weight. The solid lubricant that plays the main role in lubrication plays, lowers the coefficient of friction and thereby reduces the amount of frictional heat in the sliding metal parts under high surface pressure, to avoid seizure or wear to prevent, and should therefore be kept in the range of 60 to 80 wt .-%.

Die festen Schmiermittel, wie WS2, (CF)n (Kohlenstofffluoride), PTFE (Polytetrafluorethylen) und dgl. haben zu geringe Schmierungseigenschaften, so daß die feste Schmiermittelkomponente in der vorliegenden Erfindung auf MoS2 oder MoS2 + Graphit im oben erwähnten Bereich festgelegt ist. Ein Gehalt an festem Schmiermittel von weniger als 60 Gew.-% führt zu geringerer Dauerhaftigkeit und einem höheren Reibungskoeffizienten und die Verschlechterung in der Dauerhaftigkeit tritt auch auf bei einem festen Schmiermittelgehalt von über 80 Gew.-%. Somit sollte der Gehalt an festem Schmiermittel im Bereich von 60 bis 80 Gew.-% liegen.The solid lubricants such as WS 2 , (CF) n (carbon fluoride), PTFE (polytetrafluoroethylene) and the like have insufficient lubricating properties, so that the solid lubricant component in the present invention is set to MoS 2 or MoS 2 + graphite in the above-mentioned range is. A solid lubricant content of less than 60% by weight results in lower durability and a higher coefficient of friction, and the deterioration in durability occurs even if the solid lubricant content is over 80% by weight. Thus, the solid lubricant content should be in the range of 60 to 80% by weight.

Bezüglich des SchmiermittelZusatzes, welcher die thermische Stabilität des das feste Schmiermittel enthaltenden Films verbessert, wird Sb^O3, Fe-Pulver, Zn-Pulver, Ag-Pulver oder ein Gemisch von zwei oder mehreren davon in einer Menge von 10 bis 30 Gew.-% zugesetzt. Der Schmiermittelzusatz soll die Oxidation von MoS„ des festen Schmiermittels unterdrücken (MoSp wird zu MoO3 oxidiert, das schlechtere Schmierungseigenschaften hat). Der Gehalt an Schmiermittelzusatz sollte im Bereich von 10 bis 30 Gew.-% liegen, da der oben erwähnte Effekt nicht erwartet werden kann, wenn der Gehalt geringer als 10 Gew.-% ist, jedoch werden die Schmierungseigenschaften des das feste Schmiermittel enthaltenden Films verringert, wenn der Gehalt größer als 30 Gew.-% ist.Regarding the lubricant additive which improves the thermal stability of the film containing the solid lubricant, Sb ^ O 3 , Fe powder, Zn powder, Ag powder or a mixture of two or more thereof in an amount of 10 to 30 wt. -% added. The lubricant additive is intended to suppress the oxidation of MoS "of the solid lubricant (MoSp is oxidized to MoO 3 , which has poorer lubricating properties). The content of the lubricant additive should be in the range of 10 to 30% by weight, since the above-mentioned effect cannot be expected if the content is less than 10% by weight, however, the lubricating properties of the film containing the solid lubricant are lowered when the content is larger than 30% by weight.

Die Fig. 1 zeigt die Gleitversuche eines Schmiermittelfilms, der ein Epoxyesterharz und MoS „ + Sb^O-. konstant in einem Gewichtsverhältnis von 8:92,jedoch mit Variationen im Gehalt an Sb-O- enthält. Es ist ersichtlich, daß die Beständigkeit bzw. Dauerhaftigkeit des Schmiermittelfilms bedeutend verbessert wird, wenn der Sb-O^-Gehalt im Bereich von 10 bis 30 Gew.-% liegt, wobei der Schmiermittelfilm mehr als 500 Gleitbewegungen aushält, bevor Fressen bzw. eine kritische Reibungsabnutzung eintritt.Fig. 1 shows the sliding tests of a lubricant film, which is an epoxy ester resin and MoS "+ Sb ^ O-. constant in one Weight ratio of 8:92, but with variations in content of Sb-O- contains. It can be seen that the persistence and durability of the lubricant film is significantly improved when the Sb-O ^ content is in the range of 10 to 30% by weight, the lubricant film being more than 500 Withstands sliding movements before scuffing or critical frictional wear occurs.

Zu Beispielen anderer Schmiermittelzusätze gehören PbO, MnCl„·4H2O, As3O3 und dgl. Aus Tabelle I ist jedoch ersichtlich, daß ausser bei den Schmiermittelzusätzen der Erfindung verhältnismäßig bald Fressen eintritt wegen des nichtzufriedenstellenden Effektes des Schmiermittelzusatzes.Examples of other lubricant additives include PbO, MnCl n · 4H 2 O, As 3 O 3, and the like. However, it can be seen from Table I that, in addition to the lubricant additives of the invention, seizure occurs relatively soon because of the unsatisfactory effect of the lubricant addition.

Der organische Binder besteht aus einem Epoxyesterharz, einem Acrylharz, einem Harnstoffharz oder einem Gemisch von zwei oder mehr davon und wird im Bereich von 3 bis 15 Gew.-%, vorzugsweise mehr als 3 und weniger als 15 Gew.-%, zugesetzt. Das organische Bindemittel spielt eine wichtige Rolle zur Bindung der Teilchen des festen Schmiermittelpulvers und des Schmiermittelzusatzpulvers aneinander sowie an die zu schmierende Metalloberfläche und sollte in einer Menge von mehr als 3 Gew.-% enthalten sein, um diese Wirkung hinreichend zu gewährleisten, jedoch sollte der Gehalt 15 Gew.-% nicht übersteigen, da der Binder selbst unter hohem Oberflächendruck nur geringe Schmiermitteleigenschaften hat. Der bevorzugte Bereich ist 3,5 bis 12 Gew.-%.The organic binder consists of an epoxy ester resin, an acrylic resin, a urea resin or a mixture of two or more thereof and is in the range of 3 to 15% by weight, preferably more than 3 and less than 15 % By weight, added. The organic binder plays an important role in binding the particles of the solid lubricant powder and the lubricant additive powder to each other as well as to the metal surface to be lubricated and should be contained in an amount of more than 3% by weight to this To ensure sufficient effect, however, the content should not exceed 15% by weight, as the binder itself has only poor lubricant properties under high surface pressure. The preferred range is 3.5 to 12 wt%.

J -L k S ÖJ -L k S Ö

Festes
Schmier
mittelSolid
Lubricant
middle Organi
scher
BinderOrgani
shear
binder Tabelle ITable I. Fe2O3 Fe 2 O 3 Gleitzeit
(A)flexible working hours
(A) Gleitzeit
(B)flexible working hours
(B) MdS2 MdS 2 MnCl2-4H2O
NaHCD3 MnCl 2 -4H 2 O
NaHCD 3 153153 387387 Probe
Nr.
5sample
No.
5 Schmiermittel
zusatzlubricant
additive As2O3 As 2 O 3 11 1111th Epoxy-Ester- ZnSO-·7H2OEpoxy Ester- ZnSO- · 7H 2 O Bi2O3 Bi 2 O 3 160160 >500> 500 If
IlIf
Il Harzresin SiO2 SiO 2 370
320370
320 >500
405> 500
405 22 IlIl IlIl PbOPbO 201201 305305 0 3
40 3
4th Il
IlIl
Il TiO2 TiO 2 280280 > 500> 500 55 »» IlIl Cu-PulverCu powder 305305 >500> 500 66th IlIl IlIl Pb-PulverPb powder 380380 420420 77th IlIl IlIl CaOCaO 345345 -,500-, 500 5 85 8 IlIl IlIl Ag-PulverAg powder 374374 >500> 500 99 IlIl IlIl Zn-PulverZn powder 374374 >500> 500 1010 IlIl IlIl Fe-PulverFe powder 418418 >500> 500 1111th IlIl IlIl Sb2O3 Sb 2 O 3 500500 >500> 500 1212th »» IlIl ^ 500^ 500 >500> 500 D 13D 13 IlIl IlIl >500> 500 >500> 500 1414th IlIl IlIl >500> 500 >500> 500 1515th IlIl 1616 IlIl

Bemerkungen:Remarks:

Die Gleitzeiten A und B bedeuten einerseits die durchschnittliche Anzahl von Gleitbewegungen vor Beginn des Fressens und andererseits die durchschnittliche Anzahl von Gleitbewegungen bis zu einem Zeitpunkt, wo eine abrupte Zunahme im Reibungskoeffizienten einsetzt, und zwar bei einem Gleittest, der dreimal unter den gleichen Bedingungen wiederholt wurde.The sliding times A and B mean on the one hand the average number of sliding movements before the start of eating and on the other hand the average number of sliding movements up to a point in time when an abrupt increase in the coefficient of friction sets in, namely in a sliding test that was repeated three times under the same conditions .

BAD ORIGINALBATH ORIGINAL

Im Hinblick auf die oben erwähnte Funktion des Harzbinders wird die Art dieses Binders als wichtiger Faktor betrachtet, der für die Dauerhaftigkeit des Schmiermittelfilmes wesentlich ist. Zu organischen Bindern, die im allgemeinen auf diesem Fachgebiet bekannt sind, gehören Phenolharze, Epoxyharze plus Phenolharze oder Alkydharze, Urethanharze und dgl. Erfindungsgemäß ist der Binder auf Epoxy-Esterharze, Acrylharze, Harnstoffharze und Gemischen davon festgelegt und zwar aus den folgenden Gründen:.With regard to the above-mentioned function of the resin binder, the type of this binder is considered to be an important factor, which is essential for the durability of the lubricant film. To organic binders, in general Known in the art include phenolic resins, epoxy resins plus phenolic resins or alkyd resins, urethane resins and the like. In the present invention, the binder is set to epoxy ester resins, acrylic resins, urea resins, and mixtures thereof for the following reasons:

Tabelle II zeigt die Gleitzeit bis zu dem Zeitpunkt, .bei welchem anfänglich Fressen erfolgt, bei Anwendung von Schmiermittelfilmen aus dem MoS^-Sb-O^-organisches Harz-System, die-auf den gleitenden Metallteilen unter hohem Oberflächendruck gebildet sind und verschiedene Arten von organischen Bindern enthalten. Es ist daraus ersichtlich, daß Acrylharze, Epoxy-Esterharze und Harnstoffharze, die erfindungsgemäß eingesetzt werden, ausgezeichnete Eigenschaften hinsichtlich der Dauerhaftigkeit des Schmiermittelfilmes im Vergleich zu anderen organischen Bindern haben.Table II shows the flexitime up to the point in time which initially seizure occurs when using lubricant films from the MoS ^ -Sb-O ^ organic resin system, which-are formed on the sliding metal parts under high surface pressure and various kinds of contain organic binders. It is seen therefrom that acrylic resins, epoxy-ester resins and urea resins, the are used according to the invention, excellent properties with regard to the durability of the lubricant film compared to other organic binders.

Festes
Schmier
mittelSolid
Lubricant
middle Schmier
mittel
zusatzLubricant
middle
additive Tabelle IITable II Gleit
zeit
(1)Sliding
Time
(1) 250250 Gleit
zeit
(2)Sliding
Time
(2) Probe
Nr.sample
No. MdS2 MdS 2 Sb2O3 Sb 2 O 3 Organisches HarzOrganic resin 190190 325325 >500> 500 11 IlIl IlIl UrethanharzUrethane resin Epoxy-Ester- +· Phenolharz 195Epoxy-Ester- + Phenolic Resin 195 210210 310310 22 IlIl HH PhenolharzPhenolic resin 450450 9090 33 IlIl IlIl AlkydharzAlkyd resin >500> 500 470470 44th IlIl IlIl SiliconharzSilicone resin >500> 500 320320 55 IlIl IlIl EpoxyharzEpoxy resin >500> 500 500500 66th IlIl IlIl AcrylharzAcrylic resin >500 .> 500. 77th IlIl IlIl Epoxy-EsterharzEpoxy ester resin >500> 500 88th 1111th IlIl HamstoffharzUrea resin >500> 500 99

Zu Beispielen von Acrylharzen, Epoxy-Esterharzen oder Harnstoff harzen, die in der vorliegenden Erfindung brauchbar sind, gehören beispielsweise, ohne daß durch die Aufzählung eine Beschränkung erfolgen soll, Acrylharze wie Copolymere von Methylmethacrylat, Ethylmethacrylat, Propylmethacrylat und dgl., Epoxy-Esterharze, wie Epoxyharze vom Typ Epichlorhydrin-Bisphenol-A, verestert mit einer ungesättigten Fettsäure, beispielsweise Leinsamenöl bzw. Leinölfettsäure und insbesondere Linolensäure, sowie Rizinusöl und dgl., und Harnstoffharze wie die Kondensationspolymeren von Harnstoff und Formaldehyd.Examples of acrylic resins, epoxy-ester resins or urea Resins useful in the present invention include, for example, without enumeration a restriction should be placed on acrylic resins such as copolymers of methyl methacrylate, ethyl methacrylate, propyl methacrylate and the like, epoxy ester resins such as epichlorohydrin-bisphenol-A type epoxy resins esterified with an unsaturated one Fatty acid, for example linseed oil or linseed oil fatty acid and, in particular, linolenic acid, as well as Castor oil and the like, and urea resins such as the condensation polymers of urea and formaldehyde.

Der Schmiermittelfilm gemäß der Erfindung wird auf den gleitenden Metallteilen in folgender Weise gebildet.The lubricant film according to the invention is applied to the sliding metal parts formed in the following manner.

Zuerst werden die jeweiligen Komponenten des Schmiermittelfilms in den oben angegebenen Mengenanteilen gemischt und dann mit einem organischen Lösungsmittel, wie Toluol oder dgl., gemischt. Die erhaltene Suspension wird gleichmäßig und dünn beispielsweise auf die Gewindeteile eines Rohres aus rostfreiem Stahl mit einer Bürste oder einem Sprühgerät aufgebracht und das organische Lösungsmittel wird dann durch den Einfluß der Umgebungsluft entfernt, um einen Film der oben erwähnten Bestandteile und Zusammensetzung zu bilden. Obwohl die natürliche Trocknung ausreicht, wird es bevorzugt, daß der auf diese Weise gebildete Film, thermisch auf eine Zeitspanne von mehreren Minuten bis 5 Stunden bei einer Temperatur im Bereich von 200 bis 3000C behandelt wird. Das Erwärmen kann in jeder üblichen Weise erfolgen.First, the respective components of the lubricant film are mixed in the proportions given above, and then mixed with an organic solvent such as toluene or the like. The resulting suspension is evenly and thinly applied to, for example, the threaded parts of a stainless steel pipe with a brush or a sprayer, and the organic solvent is then removed by the influence of the ambient air to form a film of the above-mentioned ingredients and composition. Although the natural drying is sufficient, it is preferred that the film formed in this manner is thermally treated at a period of several minutes to 5 hours at a temperature in the range of 200 to 300 0 C. The heating can be done in any conventional manner.

Der oben beschriebene Schmiermittelfilm gemäß der Erfindung zeigt gute Dauerhaftigkeit bei Anwendung auf gleitende Me-The above-described lubricant film according to the invention shows good durability when applied to sliding media

BAD ORIGINALBATH ORIGINAL

tallteile unter hohem Oberflächendruck und beseitigt das Problem des Fressens das bei herkömmlichen Schmiermitteln auftritt. Der Schmiermittelfilm der Erfindung kann auf verschiedene gleitende Metallteile aufgebracht werden, die hohem Oberflächendruck für verschiedene Zwecke unterworfen sind, beispielsweise auf Rohre aus rostfreiem Stahl, die als Ölbohrrohre verwendet werden. Obwohl gewöhnlich Schmierfett.(Gewindefette) auf die Gewindeenden solcher Rohre aufgebracht werden, bevor sie verschraubt werden, sind doch einige Teile der Gewindeenden beim Festziehen der Verschraubung einem Oberflächendruck nahe der Fließ- bzw. Streckspannung von rostfreiem Stahl (z. B. 70 kg/mm2) ausgesetzt, was zum Fressen führen kann. Das Festziehen und Lösen von Gewindeenden mit dem Schmiermittelfilm der vorliegender .Erfindung kann glatt und ohne Problem des Fressens erfolgen. Außerdem können die oben erwähnten Schmierfette, die auf die Gewindeverbindungsteile von Rohren aus rostfreiem Stahl beim herkömmlichen Verschrauben von Rohren aufgebracht werden, durch Schmutzwasser oder Seewasser, je nach der Umgebung, in welcher es verwendet werden soll, verunreinigt werden. Der Schmiermittelfilm der vorliegenden Erfindung behält seine guten Schmierungseigenschaften und zeigt hohe Dauerhaftigkeit selbst unter solchen erschwerten Umcjebungsbedingungen.metal parts under high surface pressure and eliminates the problem of seizure that occurs with conventional lubricants. The lubricant film of the invention can be applied to various sliding metal parts subjected to high surface pressure for various purposes, such as stainless steel pipes used as oil well pipes. Although grease (thread grease) is commonly applied to the threaded ends of such pipes before they are screwed together, some parts of the threaded ends are subject to surface pressure close to the yield stress of stainless steel (e.g. 70 kg / mm 2 ) exposed, which can lead to seizure. The tightening and loosening of threaded ends with the lubricant film of the present invention can be done smoothly and without the problem of seizure. In addition, the above-mentioned greases that are applied to the threaded connection parts of stainless steel pipes in conventional pipe screwing may be contaminated by dirty water or sea water, depending on the environment in which it is to be used. The lubricant film of the present invention retains its good lubricating properties and exhibits high durability even under such severe environmental conditions.

Das folgende Beispiel erläutert die Erfindung.The following example illustrates the invention.

Beispiel
30 example
30th

Es wurden Schmiermittelzusammensetzungen hergestellt, die MoS„, Sb„0-, un^ ein Epoxy-Esterharz in den VerhältnissenLubricant compositions were prepared containing MoS ", Sb" 0-, and an epoxy-ester resin in the proportions

- 12 - - 12 -

52 Gew.-% : 13 Gew.-% : 35 Gew.-% (Nr. 1), 72 Gew.-% : 18 Gew.-% : 10 Gew.-% (Nr. 2) enthielten. Nach Mischen mit einem organischen Lösungsmittel wurde jede Suspension auf die Platte 1 des Prüfgerätes,wie in den Fig. 2 bis 4 gezeigt, aufgebracht. Nach natürlichem Trocknen wurde der erhaltene Film dem Platten-Reiterreibungstest unterzogen, bei welchem eine scheinbare Kontaktbelastung von 100 kg/ mm2 auf die Platte 1, ein Prüfstück aus SUS 410, mittels eines Reiters 2 aufgedrückt wird.52 wt%: 13 wt%: 35 wt% (No. 1), 72 wt%: 18 wt%: 10 wt% (No. 2). After mixing with an organic solvent, each suspension was applied to the plate 1 of the tester as shown in Figs. After natural drying, the film obtained was subjected to the plate rubbing test, in which an apparent contact load of 100 kg / mm 2 is impressed on the plate 1, a test piece made of SUS 410, by means of a rider 2.

In der in Fig. 2 gezeigten Prüfung wurde die Gleitdauer, gemessen, indem die Anzahl von Gleitbewegungen in einer Richtung der Platte 1 nach links oder rechts von einem zum anderen Ende (über eine Distanz von 60 mm) bei einer Gleitgeschwindigkeit von 30 mm/s gemessen wurde.In the test shown in FIG. 2, the sliding duration was measured by counting the number of sliding movements in one Direction of plate 1 to the left or right from one end to the other (over a distance of 60 mm) at one Sliding speed of 30 mm / s was measured.

Wie sich aus Fig. 5 ergibt, welche die Prüfergebnisse zeigt, hielt der Schmiermittelfilm Nr. 1 außerhalb des Bereiches der Erfindung nur etwa 30 Gleitbewegungen vor 0 der Beginn der kritischen Reibungsabnutzung bzw. vor Einsetzen des Fressens aus und zeigt danach eine abrupte Zunahme beim Reibungskoeffizienten. Andererseits blieben die Prüfstücke mit dem Schmiermittelfilm Nr.2 gemäß der Erfindung vollständig frei von Fressen selbst nach 500 Gleitbewegungen, was eine gute Dauerhaftigkeit des Films zeigt.As can be seen from Fig. 5 showing the test results, the lubricant film No. 1 held outside the Range of the invention only about 30 sliding movements before the beginning of the critical frictional wear or before the onset of seizure and thereafter shows an abrupt increase in the coefficient of friction. On the other hand, they stayed Test pieces with the lubricant film No. 2 according to the invention completely free from seizure even after 500 sliding movements, which shows good durability of the film.

BAD ORIGINALBATH ORIGINAL

Claims (5)

Patentanwälte · European Patent Attorneys "** Dr. W. Müller-Bore * Dr. Paul Deufel Dipl.-Chem., Dipl.-Wirtsch.-Ing. Dr. Alfred Schön Dipl.-Chem. Dr. Müller-Bore und Partner· POB 860720.· D-8000 Mündion 86 Werner Hertel Dipl.-Phys. Dietrich Lewald Dipl.-lng. Dr.-Ing. Dieter Otto Dipl.-lng. K 1599 D/Sz/sm KOBE STEEL, LIMITED 3-18, Wakinohama-cho, Chuo-ku Kobe, 651, Japan Schmiermittelfilm zur Verhinderung des Fressens von gleitenden Metalloberflächen Patentansprüche:Patent Attorneys · European Patent Attorneys "** Dr. W. Müller-Bore * Dr. Paul Deufel Dipl.-Chem., Dipl.-Wirtsch.-Ing. Dr. Alfred Schön Dipl.-Chem. Dr. Müller-Bore and partners POB 860720. D-8000 Mündion 86 Werner Hertel Dipl.-Phys. Dietrich Lewald Dipl.-Ing. Dr.-Ing.Dieter Otto Dipl.-Ing. K 1599 D / Sz / sm KOBE STEEL, LIMITED 3-18 , Wakinohama-cho, Chuo-ku Kobe, 651, Japan Lubricant film to prevent the seizure of sliding metal surfaces. Claims: 1. Schmiermittel zur Verhinderung des Fressens von gleitenden Metallteilen unter hohem Oberflächendruck, dadurch gekennzeichnet, daß dieser Schmiermittelfilm enthält: 60 bis 80 Gew.-% MoS3 oder MoS3 + Graphit als festes Schmiermittel,1. Lubricant to prevent the seizure of sliding metal parts under high surface pressure, characterized in that this lubricant film contains: 60 to 80 wt .-% MoS 3 or MoS 3 + graphite as a solid lubricant, 10 bis 30 Gew.-% wenigstens einer der Komponenten Sb2O,, Fe-Pulver, Zn-Pulver und/oder Ag-Pulver als Schmiermittelzusatz und10 to 30% by weight of at least one of the components Sb 2 O ,, Fe powder, Zn powder and / or Ag powder as a lubricant additive and mehr als 3 Gew.-% und weniger als 15 Gew.-% von zumindest einer der Komponenten Epoxyesterharz, Acrylharz und/oder Harnstoffharz als organisches Bindemittel.more than 3 wt% and less than 15 wt% of at least one of the components epoxy ester resin, acrylic resin and / or Urea resin as an organic binder. U-UOl)O München UO, !JloberlHli-uU« 4 · POIl «00720 ■ Kabal: Muebobat · Telefon (009) 47 4005 Telecopier Infotec Θ400 B - (089) 4740 08 · Telex 5-24285U-UOl) O Munich UO,! JloberlHli-uU «4 · POIl« 00720 ■ Kabal: Muebobat · Telephone (009) 47 4005 Telecopier Infotec Θ400 B - (089) 4740 08 Telex 5-24285 2. Schmiermittelfilm nach Anspruch 1, dadurch gekennzeichnet, daß das organische Bindemittel in einem Bereich von 3,5 bis 12 Gew.-% enthalten ist.2. Lubricant film according to claim 1, characterized in that that the organic binder is contained in a range from 3.5 to 12% by weight. 3. Verfahren zur Verhinderung des Fressens eines gleitenden Metallteils unter hohem Oberflächendruck, dadurch gekennzeichnet, daß man eine Suspension herstellt, indem man mit einem organischen Lösungsmittel eine ■. einen Schmiermittelfilm bildende Zusammensetzung, die 60 bis 80 Gew.-% eines festen Schmiermittels, bestehend aus MoSp oder MoS2 + Grapht, 10 bis 30 Gew.-% eines Schmiermittelzusatzes, bestehend aus wenigstens einer der Komponenten Sb3O3, Fe-BuIver, Zn-PuIver, Ag-PuI-ver und Mischungen davon und mehr als 3 bis 15 Gew.-% eines organischen Binders, bestehend aus wenigstens einer der Komponenten Epoxyharzester, Acrylharze, Harnstoffharze und Gemische davon, enthält, mischt, diese Suspension auf die Oberfläche des gleitenden Metallteiles aufbringt und3. A method for preventing the seizure of a sliding metal part under high surface pressure, characterized in that a suspension is prepared by using an organic solvent with a ■. A lubricant film-forming composition, the 60 to 80 wt .-% of a solid lubricant, consisting of MoSp or MoS 2 + grapht, 10 to 30 wt .-% of a lubricant additive, consisting of at least one of the components Sb 3 O 3 , Fe-BuIver , Zn powder, Ag powder and mixtures thereof and more than 3 to 15% by weight of an organic binder consisting of at least one of the components epoxy resin esters, acrylic resins, urea resins and mixtures thereof, mixes this suspension on the Surface of the sliding metal part and die aufgebrachte Suspension durch natürliches Austrocknen zur Entfernung des organischen Lösungsmittels unter Bildung eines Schmiermittelfilms auf dem gleitenden Metallteil· trocknet.the applied suspension by natural drying to remove the organic solvent under Formation of a lubricant film on the sliding metal part · dries. 4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, daß der auf dem gleitenden Metallteil gebildete Schmiermittelfilm thermisch für eine Zeitspanne von mehreren Minuten bis 5 Stunden bei einem Temperaturbereich von 200 bis 3500C behandelt wird.4. The method according to claim 3, characterized in that the lubricant film formed on the sliding metal part is thermally treated for a period of several minutes to 5 hours at a temperature range of 200 to 350 0 C. 5. Anwendung des Schmiermittelfilms nach Anspruch 1 oder 2 auf die Gewindeteile eines Ölbohrungsrohres aus rostfreiem Stahl mit Gewindeverschraubung.5. Application of the lubricant film according to claim 1 or 2 on the threaded parts of an oil well pipe made of stainless steel with threaded screw connection.
DE19823245827 1982-12-10 1982-12-10 LUBRICANT FILM FOR PREVENTING EATING OF SLIDING METAL SURFACES Withdrawn DE3245827A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB08235270A GB2131828B (en) 1982-12-10 1982-12-10 Lubricant film for preventing galling of sliding metal surfaces
DE19823245827 DE3245827A1 (en) 1982-12-10 1982-12-10 LUBRICANT FILM FOR PREVENTING EATING OF SLIDING METAL SURFACES

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GB08235270A GB2131828B (en) 1982-12-10 1982-12-10 Lubricant film for preventing galling of sliding metal surfaces
DE19823245827 DE3245827A1 (en) 1982-12-10 1982-12-10 LUBRICANT FILM FOR PREVENTING EATING OF SLIDING METAL SURFACES

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