FR2460995A1 - Cold-setting lubricant pastes based on epoxy! resin - contg. molybdenum di:sulphide, graphite, aluminium, copper, aluminosilicate and poly-amine - Google Patents

Cold-setting lubricant pastes based on epoxy! resin - contg. molybdenum di:sulphide, graphite, aluminium, copper, aluminosilicate and poly-amine Download PDF

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Publication number
FR2460995A1
FR2460995A1 FR7918250A FR7918250A FR2460995A1 FR 2460995 A1 FR2460995 A1 FR 2460995A1 FR 7918250 A FR7918250 A FR 7918250A FR 7918250 A FR7918250 A FR 7918250A FR 2460995 A1 FR2460995 A1 FR 2460995A1
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Prior art keywords
friction
paste
parts
graphite
aluminosilicate
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Granted
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FR7918250A
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French (fr)
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FR2460995B1 (en
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MITROFANOVA ALLA
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MITROFANOVA ALLA
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Priority to FR7918250A priority Critical patent/FR2460995A1/en
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Publication of FR2460995B1 publication Critical patent/FR2460995B1/fr
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/20—Sliding surface consisting mainly of plastics
    • F16C33/201—Composition of the plastic
    • 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
    • C10M103/06—Metal compounds
    • 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
    • C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
    • C10M107/20—Lubricating compositions characterised by the base-material being a macromolecular compound containing oxygen
    • C10M107/30—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • C10M125/00—Lubricating compositions characterised by the additive being an inorganic material
    • C10M125/02—Carbon; Graphite
    • 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
    • C10M125/00—Lubricating compositions characterised by the additive being an inorganic material
    • C10M125/04—Metals; Alloys
    • 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
    • C10M125/00—Lubricating compositions characterised by the additive being an inorganic material
    • C10M125/22—Compounds containing sulfur, selenium or tellurium
    • 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
    • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
    • C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
    • C10M133/04—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M133/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
    • 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
    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/04—Mixtures of base-materials and additives
    • C—CHEMISTRY; METALLURGY
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    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/04—Elements
    • C10M2201/041—Carbon; Graphite; Carbon black
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    • C10M2201/042—Carbon; Graphite; Carbon black halogenated, i.e. graphite fluoride
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    • C10M2201/0613—Carbides; Hydrides; Nitrides used as base material
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    • C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
    • C10M2201/0623—Oxides; Hydroxides; Carbonates or bicarbonates used as base material
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    • C10M2201/065—Sulfides; Selenides; Tellurides
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    • C10M2201/065—Sulfides; Selenides; Tellurides
    • C10M2201/066—Molybdenum sulfide
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    • C10M2201/08—Inorganic acids or salts thereof
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    • C10M2201/0873—Boron oxides, acids or salts used as base material
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    • C10M2201/1006—Compounds containing silicon used as base material
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    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/02—Bearings

Abstract

Lubricant paste compsns. comprise 40-80 pts.wt. epoxy resin, 15-30 pts.wt. MoS2, 10-15 pts.wt. graphite, 5-10 pts.wt. Al, 5-10 pts.wt. Cu, 8-15 pts.wt. aluminosilicate and 5-10 pts.wt. polyethylene polyamine. The compsns. can be used to lubricate large or small areas (e.g. in precision machine tools). They can be applied in thick (1-2 mm) layers and harden at room temp. to form films with good antifriction and antiwear properties and high mechanical strength.

Description

La présente invention concerne le domaine des constructions mécaniques et a notamment pour objet une pâte antifriction utilisée en particulier pour obtenir un revêtement lubrifiant solide dans les sous-ensembles à frottement. The present invention relates to the field of mechanical constructions and in particular relates to an anti-friction paste used in particular to obtain a solid lubricating coating in friction sub-assemblies.

On connaît bien des pâtes antifriction à base de matière filmogènes : phénolformaldéhydes, époxydes, butyrale, etc, dans lesquelles les propriétés d'antifriction sont déterminées par la charge, par exemple le bisulfure de molybène, le biséléniure de titane ou leurs mélanges (voir, par exemple,
L.N. Sentjurikhina, E.M. Oparina, "Les lubrifiants solides au bisulfure de molybdène", éditions Khimia, Moscou, 1966, pp. 24 à 99). Ces pâtes sont durcies dans des fours à une température de 100 à 2000C. Cette dernière circonstance ne permet pas d'utiliser des pâtes antifrictions pour sous-ensembles à frottement, de grandes dimensions, par exemple pour les glissières des machines-outils de longueur égale ou supérieure à trois mètres.Ces pâtes sont prévues pour l'obtention de revêtements antifrictions seulement dans les petits sousensembles à frottement.Anti-friction pastes based on film-forming materials are well known: phenolformaldehydes, epoxides, butyrale, etc., in which the anti-friction properties are determined by the filler, for example molybene disulphide, titanium biselenide or their mixtures (see, for example,
LN Sentjurikhina, EM Oparina, "Solid lubricants with molybdenum disulphide", Khimia editions, Moscow, 1966, pp. 24 to 99). These pastes are hardened in ovens at a temperature of 100 to 2000C. This last circumstance does not allow the use of anti-friction pastes for friction sub-assemblies, of large dimensions, for example for the slides of machine tools of length equal to or greater than three meters. These pastes are intended for obtaining anti-friction coatings only in small friction sub-assemblies.

On connait aussi des pâtes antifrîctions qui sont utilisées pour l'obtention de revêtements lubrifiants solides dans les sous-ensembles à frottement et qui durcissent à la température ambiante. Ainsi, l'une de ces pâtes antifrictions connues a la composition suivante (en parties pondérales)
résine époxyde 80 à 150
phtalate dibutylique 15 à 30
bisulfure de molybdène 50 à 100
polyéthylène-polyamine 15 à 30
solvant de résine époxyde,
composé de 50 parties en
poids de toluène,
15 parties en poids de butanol,
10 parties en poids d'éthanol,
10 parties en poids d'acétate
de butyle ou d'amyle,
8 parties en poids d'éthylène-glycol
et 7 parties en poids d'acétone 80 à 150 (voir le cerfîcat d'auteur d'invention U.R.S.S n0 228231,
CIB B22d îî/oo). Anti-friction pastes are also known which are used for obtaining solid lubricant coatings in friction sub-assemblies and which harden at room temperature. Thus, one of these known antifriction pastes has the following composition (in parts by weight)
epoxy resin 80 to 150
dibutyl phthalate 15 to 30
molybdenum disulphide 50 to 100
polyethylene-polyamine 15 to 30
epoxy resin solvent,
composed of 50 parts in
toluene weight,
15 parts by weight of butanol,
10 parts by weight of ethanol,
10 parts by weight of acetate
butyl or amyl,
8 parts by weight of ethylene glycol
and 7 parts by weight of acetone 80 to 150 (see the USSR inventor certificate no. 228231,
CIB B22d îî / oo).

La pâte connue en question est de consistance fluide. The known paste in question is of fluid consistency.

Elle est applique sur les surfaces frottantes des pièces des sous-ensembles à frottement au moyen d'une brosse ou par pulvérisation (par exemple à l'aide d'un pistolet)0 L'épaisseur du revêtement lubrifiant solide ainsi obtenu est limitée à une valeur se situant entre 0,05 et 0,1 mm, Cette limitation en épaisseur abaisse fortement la longévité R du revêtement lubrifiant solide (ctest-à-dire la longévité du sous-ensemble à frottement),
Les Les indices antifriction (coefficient de frottement de glissement f, intensité d'usure linéaire Ih et longévité
R) du revêtement lubrifiant solide réalisé avec la pâte de composition indiquée sont insatisfaisants lorsqutelle est employée pour les sous-ensembles à frottement, par exemple les glissières des machines-outils, surtour celles des machines-outils de grande précision0
Ainsi, par exemple, pour une vitesse de glissement v = 0,06 m/s et une charge P = 10 kg/cm2, le coefficient de frottement de glissement f est égal à0,5, l'intensité d'usure linéaire 1h est de 1,0.10-7 et la longévité R correspond à 8,5 km. It is applied to the rubbing surfaces of the parts of the friction subassemblies by means of a brush or by spraying (for example using a spray gun) 0 The thickness of the solid lubricant coating thus obtained is limited to a value lying between 0.05 and 0.1 mm, This limitation in thickness greatly reduces the longevity R of the solid lubricant coating (ie the longevity of the friction sub-assembly),
The anti-friction indices (sliding friction coefficient f, linear wear intensity Ih and longevity
R) of the solid lubricant coating produced with the paste of the indicated composition are unsatisfactory when it is used for friction sub-assemblies, for example the slides of machine tools, especially for those of high precision machine tools
Thus, for example, for a sliding speed v = 0.06 m / s and a load P = 10 kg / cm2, the sliding friction coefficient f is equal to 0.5, the linear wear intensity 1h is from 1.0.10-7 and the longevity R corresponds to 8.5 km.

Le but de l'invention est de supprimer les inconvénients indiqués. The object of the invention is to eliminate the drawbacks indicated.

On s'est proposé pour cela de mettre au point une pâte ; antifriction dont la composition permettrait son utilisation aussi bien dans les gros sous-ensembles à frottement que dans les petits, et 11 obtention de revêtements lubrifiants solides dont les indices antifriction seraient élevés. We proposed for this to develop a paste; antifriction, the composition of which would allow its use both in large friction sub-assemblies and in small ones, and obtaining solid lubricant coatings whose antifriction indices would be high.

La solution consiste en une pâte antifriction contenant une résine époxyde, du bisulfure de molybdène, du polyéthylènepolyamine, pâte dans laquelle, d'après l'inventions il y a en outre du graphite, de l'alunin zz, du cuivre et un aluminosilicate, la composition de cette pâte étant la suivante (en parties pondérales)
résine époxyde 40 à- 80
bisulfure de molybdène 15 à 30
graphite 10 à 15
aluminium 5 à 10
cuivre 5 à 10
aluminosilicate 8 à 5
polyéthylène-polyamine 5 à 10o
S'il est nécessaire d'obtenir un revêtement lubrifiant
solide de dureté maximale, il est recommandé d'utiliser une
pâte antifriction à haute teneur en charge (bisulfure de
molybdène, graphite, aluminium, cuivre, aluminosilicate).Dans
ce cas, il est recommandé d'ajouter à la pâte antifrîction un solvant de résine époxyde à raison de 5 à 30 parties en poids, L'addition de ce solvant permet d'obtenir une pâte de consistance nécessaire.The solution consists of an anti-friction paste containing an epoxy resin, molybdenum disulfide, polyethylene polyamine, a paste in which, according to the invention, there is also graphite, alunin zz, copper and an aluminosilicate, the composition of this paste being as follows (in parts by weight)
epoxy resin 40 to 80
molybdenum disulfide 15 to 30
graphite 10 to 15
aluminum 5 to 10
copper 5 to 10
aluminosilicate 8 to 5
polyethylene-polyamine 5 to 10o
If it is necessary to obtain a lubricating coating
solid of maximum hardness, it is recommended to use a
high-load anti-friction paste (disulphide
molybdenum, graphite, aluminum, copper, aluminosilicate).
in this case, it is recommended to add to the anti-friction paste an epoxy resin solvent at a rate of 5 to 30 parts by weight. The addition of this solvent makes it possible to obtain a paste of necessary consistency.

La présence de bisulfure de molybdène et de graphite d la pâte conforme à l'invention permet d'abaisser notablement la valeur du coefficient de frottement de glissement f. Ainsi, par exemple, pour une vitesse de glissement v = 0,06 m/s et une charge P = 10 kg/cm2, le coefficient de frottement de glissement est égal àO, 20
La présence d'aluminosilicate de cuivre et d'aluminium dans la pâte conforme à l'invention augmente la résistance mécanique et la résistance à l'usure du revêtement lubrifiant solide réalisé avec cette pâte et, de la sorte, permet d'abaisser notablement l'intensité d'usure linéaire Ih dudit revêtement lubrifiant. Ainsi, l'intensité d'usure linéaire pou: une vitesse de glissement v = 0,06 m/s et une charge P = 10 kg/cm2 est de 1,O.10##. The presence of molybdenum disulphide and graphite of the paste according to the invention makes it possible to significantly reduce the value of the sliding friction coefficient f. Thus, for example, for a sliding speed v = 0.06 m / s and a load P = 10 kg / cm2, the coefficient of sliding friction is equal to 0.10
The presence of aluminum and copper aluminosilicate in the paste according to the invention increases the mechanical resistance and the wear resistance of the solid lubricant coating produced with this paste and, in this way, makes it possible to significantly reduce the linear wear intensity Ih of said lubricant coating. Thus, the linear wear intensity for: a sliding speed v = 0.06 m / s and a load P = 10 kg / cm2 is 1, O.10 ##.

La pâte conforme à l'invention est très consistante et peut être appliquée sur les surfaces frottantes des pièces des sous-ensembles à frottement en une couche de n'importe quelle épaisseur, une épaisseur avantageuse étant de 1 à 2 mm,
Ceci donne un accroissement appréciable de la longévité R du revêtement lubrifiant solide réalisé avec la pâte conforme à l'invention. Ainsi, pour une vitesse de glissement v = 0,06 et une charge P = 10 kg/cm2, la longévité atteint 250 à 500 km (selon l'épaisseur du revêtement lubrifiant solide)0
La pâte antifriction de composition conforme à 11 invention durcit à la température ambiante, aussi peut elle ê@ utilisée aussi bien dans les gros sous-ensembles à frottement que dans les petits Les pièces des sous-ensembles à frottemen pour lesquelles peut être utilisée la pâte conforme à llinvention peuvent être no-tal nt en matas, en bois, en matière plastique.The paste according to the invention is very consistent and can be applied to the rubbing surfaces of the parts of the friction sub-assemblies in a layer of any thickness, an advantageous thickness being from 1 to 2 mm,
This gives an appreciable increase in the longevity R of the solid lubricant coating produced with the paste in accordance with the invention. Thus, for a sliding speed v = 0.06 and a load P = 10 kg / cm2, the longevity reaches 250 to 500 km (depending on the thickness of the solid lubricant coating) 0
The anti-friction paste of composition according to the invention hardens at room temperature, so it can be used both in large friction sub-assemblies and in small parts of the friction sub-assemblies for which the paste can be used. in accordance with the invention may be no-tal nt made of matas, wood, plastic.

La pâte antifriction faisant l'objet de l'invention est préparée en mélangeant une résine époxyde avec une charge dans les proportions indiquées plus haut. Quelques minutes avant l'application de la pâte antifriction sur les surfaces frottantes des pièces, on ajoute au mélange ainsi préparé un durcisseur à froid, notamment du polyé+hylène-polyamine, et l'on brasse mécaniquement avec soin. The anti-friction paste which is the subject of the invention is prepared by mixing an epoxy resin with a filler in the proportions indicated above. A few minutes before the application of the anti-friction paste on the rubbing surfaces of the parts, a cold hardener, in particular polyé + hylène-polyamine, is added to the mixture thus prepared, and mechanical brewing is carried out with care.

La pâte ainsi préparée est appliquée, par exemple à l'aide d'une spatule, sur les surfaces de frottement des pièces des sous-ensembles à frottement. La pâte appliquée se fige à une température de 18 à 220C au bout de 1,5 à 2 heures. The paste thus prepared is applied, for example using a spatula, to the friction surfaces of the parts of the friction sub-assemblies. The applied paste freezes at a temperature of 18 to 220C after 1.5 to 2 hours.

Le revêtement lubrifiant solide ainsi obtenu acquiert une dureté maximale à la température indiquée 36 à 48 heures après son application. La durée du durcissement de la pâte antifriction peut être réduite à 15-20 heures s'il se déroule à une tempéraute de 35 à 400cl
Si la pâte antifriction est préparée avec une teneur en charge élevée, il est recommandé de lui ajouter un solvant de résine époxyde dans les propurtions indiquées plus haut.The solid lubricant coating thus obtained acquires a maximum hardness at the indicated temperature 36 to 48 hours after its application. The duration of hardening of the anti-friction paste can be reduced to 15-20 hours if it takes place at a temperature of 35 to 400cl
If the anti-friction paste is prepared with a high filler content, it is recommended to add an epoxy resin solvent in the propellants indicated above.

En tant que solvant de résine époxyde on peut utiliser notamment l'acétone, le toluène, ltéthanol, le butanol ou un mélange constitué de 50 parties en poids de toluène, 15 parties en poids de butanol, 10 parties en poids d'éthanol, S0 parties en poids d'acétate de butyle ou d'amyle, 8 parties en poids d'éthylène-glycol et 7 parties en poids d'acétone.As an epoxy resin solvent, acetone, toluene, ethanol, butanol or a mixture consisting of 50 parts by weight of toluene, 15 parts by weight of butanol, 10 parts by weight of ethanol, SO can be used. parts by weight of butyl or amyl acetate, 8 parts by weight of ethylene glycol and 7 parts by weight of acetone.

Le coefficient de frottement de glissement f, l'intensité d'usure linéaire Ih et la longévité R indiqués plus haut pour le revêtement lubrifiant solide, réalisé avec la pâte conforme à l'invention, sont déterminés par la méthode décrite ci-après, dans laquelle on utilise une machine de frottement opérant avec frottement frontal ou en ttut. The sliding friction coefficient f, the linear wear intensity Ih and the longevity R indicated above for the solid lubricant coating, produced with the paste according to the invention, are determined by the method described below, in which uses a friction machine operating with frontal friction or tutut.

Selon cette méthode, la pâte antifriction est appliquée sur la tranche d'une douille métallique cylindrique. Après durcissement de la pâte à une température de 18 à 220C etfinition du revêtement lubrifiant solide obtenu à la cote, l'éprouvette (douille pourvue du revêtement) est montée dans l'alignement d'une douille analogue, mais non pourvue d'un revêtement (contre-pièce). Ensuite l'éprouvette est mise en contact avec la tranche de la contre-pièce sous une charge prédéterminée P, et la contre-pièce est mise en rotation. La force de frottement F dans la zone de contact frottant entre les surfaces de l'éprouvette et de la contre-pièce est enregistrée par un capteur extensomètrique et un appareil enregistreur. According to this method, the anti-friction paste is applied to the edge of a cylindrical metal sleeve. After hardening of the dough at a temperature of 18 to 220C and finishing of the solid lubricant coating obtained to the dimension, the test piece (socket provided with the coating) is mounted in alignment with a similar socket, but not provided with a coating (counter piece). Then the test piece is brought into contact with the edge of the counter-piece under a predetermined load P, and the counter-piece is rotated. The friction force F in the friction contact area between the surfaces of the test piece and the counterpiece is recorded by an extensometric sensor and a recording device.

Le coefficient de frottement de glissement f est calculé suivant la formule
F
f
P
F étant la force de frottement, kg
P, la charge normale, kg/cm20
L'intensité d'usure linéaire Ih est déterminée d'après la formule : h Ih = -- 10-9
L h étant l'usure (diminution de l'épaisseur) du revêtement lubrifiant solide, mesurée avec un palmer ou micromètre (en microns)
L, le parcours avec frottement de glissement à l'issue duquel l'usure a atteint la valeur h (en km). The coefficient of sliding friction f is calculated according to the formula
F
f
P
F being the friction force, kg
P, normal load, kg / cm20
The linear wear intensity Ih is determined according to the formula: h Ih = - 10-9
L h being the wear (reduction in thickness) of the solid lubricant coating, measured with a palm or micrometer (in microns)
L, the course with sliding friction at the end of which the wear has reached the value h (in km).

Le parcours avec frottement de glissement L est calculé conformément à la formule
L = v.t, v étant la vitesse de glissement de la contre-pièce (m/s) t, la durée de glissement (s).The course with sliding friction L is calculated according to the formula
L = vt, v being the sliding speed of the counterpiece (m / s) t, the sliding duration (s).

Le calcule de la longévité R du revêtement lubrifiant solide s'effectue suivant la formule
R
Ih LL étant l'épaisseur initiale du revêtement lubrifiant solide
(mm).The calculation of the longevity R of the solid lubricant coating is carried out according to the formula
R
Ih LL being the initial thickness of the solid lubricant coating
(mm).

Pour une meilleure compréhension de l'invention, on donne ci-après des exemples concrets mais non limitatifs de pâtes conformes à l'invention. Dans tous ces exemples, le
coefficient de frottement de glissement f, l'intensité d'usure
linéaire Ih et la longévité R du revêtement lubrifiant solide
sont déterminés par la méthodes décrite plus haut. For a better understanding of the invention, concrete but nonlimiting examples of pasta according to the invention are given below. In all of these examples, the
sliding friction coefficient f, wear intensity
linear Ih and longevity R of the solid lubricant coating
are determined by the methods described above.

Exemple 1. Example 1.

On prépare une pâte antifriction de composition suivants (parties pondérales) :
résine époxyde 60
bisulfure de molybdène 24
graphite 12
aluminium 8
cuivre 5
aluminosilicate 10
polyéthylène-polyamine 8
acétone 15. An anti-friction paste of the following composition is prepared (parts by weight):
epoxy resin 60
molybdenum disulfide 24
graphite 12
aluminum 8
copper 5
aluminosilicate 10
polyethylene-polyamine 8
acetone 15.

Pour cela on mélange la résine époxyde avec l'acétone. For this we mix the epoxy resin with acetone.

On ajoute à la solution obtenue la charge : bisulfure de molybdène, graphite, aluminium, cuivre et alu
minosilicate avec brassage mécanique énergique pendant 5 à 10 minutes. Huit à dix minutes avant l'application de la pâte antifriction sur les surfaces frottantes des pièces métalliques du sous-ensemble à frottement, on ajoute au mélange préparé le durcisseur à froid (le polyéthylène-polyamine) en brassant mécaniquement avec soin.The filler is added to the solution obtained: molybdenum disulphide, graphite, aluminum, copper and aluminum
minosilicate with vigorous mechanical stirring for 5 to 10 minutes. Eight to ten minutes before the application of the anti-friction paste on the rubbing surfaces of the metal parts of the friction sub-assembly, the cold hardener (polyethylene-polyamine) is added to the prepared mixture, mechanically stirring carefully.

La pâte antîfriction est appliquée à la spatule sur les surfaces frottantes des pièces du sous-ensemble à frottement, en une couche d'une épaisseur de 2 mm. La pâte appliquée se fige -au bout de 2 heures à uno température de 18 à 200C. Le revêtement lubrifiant solide ainsi obtenu devient dur 40 heures après l'application de la pâte sur les surfaces frottantes des pièces du sous-ensemble à frottement. La durée du durcissement de la pâte antifriction est réduite à 15 heures s'il se déroule à 35-400C. The anti-friction paste is applied with a spatula to the rubbing surfaces of the parts of the friction sub-assembly, in a layer with a thickness of 2 mm. The applied paste freezes - after 2 hours at a temperature of 18 to 200C. The solid lubricant coating thus obtained becomes hard 40 hours after the application of the paste on the rubbing surfaces of the parts of the friction sub-assembly. The duration of hardening of the anti-friction paste is reduced to 15 hours if it takes place at 35-400C.

Les indices antifriction du revêtement lubrifiant solide réalisé avec la pâte de cette composition, lors des essais dans le sous-ensemble fonctionnant avec une vitesse de glissement v = 0,06 m/s sous une charge P = 2 kg/cm2 sont les suivants
coefficient de frottement de glissement f 0,25,
intensité d'usure linéaire Ih 1,0010
longévité R, lim 525. The anti-friction indices of the solid lubricant coating produced with the paste of this composition, during tests in the sub-assembly operating with a sliding speed v = 0.06 m / s under a load P = 2 kg / cm2 are the following
coefficient of sliding friction f 0.25,
linear wear intensity Ih 1.0010
longevity R, lim 525.

Exemple 2. Example 2.

De la même manière que dans l'exemple 1, on prépare une pâte antîfriction de composition suivante (parties pondérales)
résine époxyde 40
bisulfure de molybdène 15
graphite 10
aluminium . 5
cuivre 7
aluminosilicate 8
polyéthylène-polyamine 5
solvant de résine époxyde, composé de
50 parties en poids de toluène, 15
parties en poids de butanol, 10 parties
en poids d'éthanol, 10 parties en poids
d'acétate de butyle, 8 parties en poids
d1éthylène-glycol et 7 parties en poids
d'acétone 30
Les opérations ultérieures d'application de la pâte sur les surfaces frottantes des pièces du sous-ensembles à frottement et de durcissemont du revêtement sont exscutGas de la même manière que dans l'exemple 1
Les indices antifricftion du#revêtement lubrifiant solide réalisé avec la pâte de cette composition, lors des essais dans le sous-ensemble fonctionnant avec une vitesse de glissement v = 0,06 m/s sous une charge P = 2 kg/cm2, sont les suivants
coefficient de frottement de glissement f 0,28,
intensité d'usure linéaire Ih 2,2.10-9,
longévité R, km 300. In the same way as in Example 1, an anti-friction paste of the following composition is prepared (parts by weight)
epoxy resin 40
molybdenum disulfide 15
graphite 10
aluminum. 5
copper 7
aluminosilicate 8
polyethylene-polyamine 5
epoxy resin solvent, composed of
50 parts by weight of toluene, 15
parts by weight of butanol, 10 parts
by weight of ethanol, 10 parts by weight
butyl acetate, 8 parts by weight
ethylene glycol and 7 parts by weight
acetone 30
The subsequent operations of applying the paste on the rubbing surfaces of the parts of the friction sub-assembly and of hardening of the coating are exscutGas in the same manner as in Example 1
The antifricftion indices of the # solid lubricant coating produced with the paste of this composition, during tests in the sub-assembly operating with a sliding speed v = 0.06 m / s under a load P = 2 kg / cm2, are the following
coefficient of sliding friction f 0.28,
linear wear intensity Ih 2,2.10-9,
longevity R, km 300.

Exemple 3. Example 3.

De la même manière que dans l'exemple 1, on prépare une pâte#antifriction de composition suivante (en parties pondérale
résine époxyde 45
bisulfure de molybdène 20
graphite 10
aluminium 6
cuivre 5
aluminosilicate g
polyéthylène-polyamine 6
toluène
Les opérations ultérieures d'application de la pâte sur les surfaces frottantes des pièces du sous-ensemble à frottement et de durcissement du revêtement sont exécutées de la même façon que dans l'exemple lo
Les indices antifriction du revêtement lubrifiant solide réalisé avec la pâte de cette composition sont analogues à ceux de exemple 1.In the same way as in Example 1, an anti-friction paste of the following composition is prepared (in parts by weight
epoxy resin 45
molybdenum disulfide 20
graphite 10
aluminum 6
copper 5
aluminosilicate g
polyethylene-polyamine 6
toluene
The subsequent operations of applying the paste on the rubbing surfaces of the parts of the friction sub-assembly and hardening the coating are carried out in the same way as in example lo
The anti-friction indices of the solid lubricant coating produced with the paste of this composition are similar to those of Example 1.

Exemple 4. Example 4.

On prépare une pâte antiftiction de composition suivante (en parties pondérales)
résine époxyde 80
bisulfure de molybdène 30
graphite 15
aluminium 10
cuivre 10
aluminosilicate 15
polyéthylène-polyamine 10e
Pour cela on mélange la résine époxyde avec la charge dans les proportions indiquées ci-dessus Les opérations ultérieures de préparation de la pâte antifriction, de son application sur les surfaces frottantes des pièces du sousensemble à frottement et de durcissement sont exécutées de la même façon que dans l'exemple 1. An anti-fiction paste of the following composition is prepared (in parts by weight)
epoxy resin 80
molybdenum disulfide 30
graphite 15
aluminum 10
copper 10
aluminosilicate 15
polyethylene polyamine 10th
For this, the epoxy resin with the filler is mixed in the proportions indicated above. The subsequent operations for preparing the anti-friction paste, its application to the rubbing surfaces of the parts of the friction and hardening subassembly are carried out in the same way as in example 1.

Les indices antifriction du revêtement lubrifiant solide réalisé avec la pâte de cette composition sont analogues à ceux de l'exemple 2. The anti-friction indices of the solid lubricant coating produced with the paste of this composition are similar to those of Example 2.

Plus bas on indique, à titré comparatif, les données caractérisant les indices antifriction d'un revêtement lubrifiant solide réalisé avec des pâtes antifriction connues,
Ces indices ont été obtenus lors des essais dans un sousensemble à friction fonctionnant dans les conditions spécifiées dans l'exemple 1.Below we indicate, for comparative purposes, the data characterizing the anti-friction indices of a solid lubricating coating produced with known anti-friction pastes,
These indices were obtained during tests in a friction subassembly operating under the conditions specified in Example 1.

Les indices antifriction du revêtement lubrifiant solide réalisé avec la pâte antifriction connue, faisant l'objet-du certificat d'auteur d'invention U.R.S.S0 n0228231
CIB B22d 11/00, étaient les suivants
coefficienc de frottement de glissement f 0,7,
intensité d'usure linéaire Ih o,9.Io#8
longévité R, km 111
Les indices antîfriction d'un revêtement lubrifiant solide réalisé avec la pâte antifriction connue Môglice (société Diamant, R0F.A.) étaient les suivants
coefficient de frottement de glissement f 0,47,
intensité d'usure linéaire Ih 2,3.10#8,
longévité R, km 40.The anti-friction indices of the solid lubricant coating produced with the known anti-friction paste, the subject of the USSR inventor's certificate n0228231
IPC B22d 11/00, were as follows
slip friction coefficient f 0.7,
linear wear intensity Ih o, 9.Io # 8
longevity R, km 111
The anti-friction indices of a solid lubricating coating produced with the known anti-friction paste Môglice (Diamant company, R0F.A.) were as follows
coefficient of sliding friction f 0.47,
linear wear intensity Ih 2,3.10 # 8,
longevity R, km 40.

Bien entendu, l'invention n'est nullement limitée aux modes de réalisation décrits et représentés qui n'ont été donnés qu'à titre d'exemple. En particulier, elle comprend tous les moyens constituant des Xquivalents techniques des moyens décrits, ainsi que leurs combinaisons, si celles-ci sont exécutées suivant son esprit et mises en oeuvre dans le cadre des revendications qui suivent.  Of course, the invention is in no way limited to the embodiments described and shown which have been given only by way of example. In particular, it includes all the means constituting technical equivalents of the means described, as well as their combinations, if these are carried out according to the spirit and implemented in the context of the claims which follow.

Claims (3)

REVENDICATIONS 1. Pâte antirriclion du type contenant une résine époxyde, du bisulfure de molybdène, du polyéthylène-polyamine, caractériséeen ce qu'elle contient en outre du graphite, de l'aluminium, du cuivre et un alumosilicate. 1. Antirriclion paste of the type containing an epoxy resin, molybdenum disulphide, polyethylene polyamine, characterized in that it also contains graphite, aluminum, copper and an alumosilicate. 2. Pâte antifriction suivant la revendication 1, caractérisée par la composition suivante (parties en poids) 2. Antifriction paste according to claim 1, characterized by the following composition (parts by weight) résine époxyde 40 à 80, epoxy resin 40 to 80, bisulfure de molybdène 15 à 30, molybdenum disulphide 15 to 30, graphite 10 à 15, graphite 10 to 15, aluminium 5 à 10,  aluminum 5 to 10, cuivre 5 à 10, copper 5 to 10, aluminosilicate 8 à 15, aluminosilicate 8 to 15, polyéthylène-polyamine 5 à 10. polyethylene-polyamine 5 to 10. 3. Pâte antifriction selon l'une des revendications 1 1 i et 2, caractériséeen ce qu'elle contient aussi un solvant de résine époxyde à raison de 5 à 30 parties en poids.  3. Antifriction paste according to one of claims 1 1 i and 2, characterized in that it also contains an epoxy resin solvent in an amount of 5 to 30 parts by weight.
FR7918250A 1979-07-13 1979-07-13 Cold-setting lubricant pastes based on epoxy! resin - contg. molybdenum di:sulphide, graphite, aluminium, copper, aluminosilicate and poly-amine Granted FR2460995A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7918250A FR2460995A1 (en) 1979-07-13 1979-07-13 Cold-setting lubricant pastes based on epoxy! resin - contg. molybdenum di:sulphide, graphite, aluminium, copper, aluminosilicate and poly-amine

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Application Number Priority Date Filing Date Title
FR7918250A FR2460995A1 (en) 1979-07-13 1979-07-13 Cold-setting lubricant pastes based on epoxy! resin - contg. molybdenum di:sulphide, graphite, aluminium, copper, aluminosilicate and poly-amine

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FR2460995A1 true FR2460995A1 (en) 1981-01-30
FR2460995B1 FR2460995B1 (en) 1983-11-04

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3128412A1 (en) * 1981-09-11 1983-01-27 Institut mechaniki metallopolimernych sistem Akademii Nauk Belorusskoj SSR, Gomel Self-lubricating composition material

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB779136A (en) * 1951-12-20 1957-07-17 Saint Gobain Improvements in or relating to self-lubricating bearing elements
CH323413A (en) * 1953-06-19 1957-07-31 Hohenzollern Huettenverwalt Composite plain bearings
CH352440A (en) * 1957-04-01 1961-02-28 Magus Ag Dry lubricant
FR2009368A1 (en) * 1968-05-27 1970-02-06 Dow Corning Self-lubricating bearing structures incorporating solid
US3932286A (en) * 1975-01-21 1976-01-13 Nikolai Ivanovich Pylaev Antifriction polymeric material and a composition thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB779136A (en) * 1951-12-20 1957-07-17 Saint Gobain Improvements in or relating to self-lubricating bearing elements
CH323413A (en) * 1953-06-19 1957-07-31 Hohenzollern Huettenverwalt Composite plain bearings
CH352440A (en) * 1957-04-01 1961-02-28 Magus Ag Dry lubricant
FR2009368A1 (en) * 1968-05-27 1970-02-06 Dow Corning Self-lubricating bearing structures incorporating solid
US3932286A (en) * 1975-01-21 1976-01-13 Nikolai Ivanovich Pylaev Antifriction polymeric material and a composition thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3128412A1 (en) * 1981-09-11 1983-01-27 Institut mechaniki metallopolimernych sistem Akademii Nauk Belorusskoj SSR, Gomel Self-lubricating composition material

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