CH660023A5 - HIGH-TEMPERATURE LUBRICANT FOR CHIP-FREE HOT FORMING OF METALS. - Google Patents
HIGH-TEMPERATURE LUBRICANT FOR CHIP-FREE HOT FORMING OF METALS. Download PDFInfo
- Publication number
- CH660023A5 CH660023A5 CH2651/84A CH265184A CH660023A5 CH 660023 A5 CH660023 A5 CH 660023A5 CH 2651/84 A CH2651/84 A CH 2651/84A CH 265184 A CH265184 A CH 265184A CH 660023 A5 CH660023 A5 CH 660023A5
- Authority
- CH
- Switzerland
- Prior art keywords
- temperature lubricant
- lubricant
- lubricant according
- temperature
- organic
- Prior art date
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- 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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- C10M103/00—Lubricating compositions characterised by the base-material being an inorganic material
- C10M103/06—Metal compounds
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- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/003—Inorganic compounds or elements as ingredients in lubricant compositions used as base material
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- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/12—Polysaccharides, e.g. cellulose, biopolymers
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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
- C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2217/02—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2217/028—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a nitrogen-containing hetero ring
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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
- C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2217/06—Macromolecular compounds obtained by functionalisation op polymers with a nitrogen containing compound
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- 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
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/24—Metal working without essential removal of material, e.g. forming, gorging, drawing, pressing, stamping, rolling or extruding; Punching metal
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- 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
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/241—Manufacturing joint-less pipes
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- 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
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/242—Hot working
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- 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
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/243—Cold working
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- 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
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/244—Metal working of specific metals
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- 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
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/244—Metal working of specific metals
- C10N2040/245—Soft metals, e.g. aluminum
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- 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
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/244—Metal working of specific metals
- C10N2040/246—Iron or steel
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- 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
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/244—Metal working of specific metals
- C10N2040/247—Stainless steel
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- 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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- Chemical & Material Sciences (AREA)
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- Lubricants (AREA)
Description
Die Erfindung betrifft einen Hochtemperaturschmierstoff für die spanlose Heissumformung von Metallen, enthaltend einen Festschmierstoff und ein rückstandsfrei sich zersetzendes organisches Produkt. The invention relates to a high-temperature lubricant for the non-cutting hot forming of metals, comprising a solid lubricant and a residue-free decomposing organic product.
Es ist aus der CH-PS 596 294 ein Hochtemperaturschmiermittel aus Graphit, einem Alkylenpolymerisat oder -mischpolymerisat und einem Dispergiermittel bekannt. Das in derartigen Schmiermitteln angewendete Polymerisat brennt während der Umformung des Metalles rückstandsfrei ab, wobei man davon ausgehen kann, dass anfänglich die Polymerisatschmelze und später deren gasförmigen Zersetzungs-5 produkte schmierwirksam sind. From CH-PS 596 294 a high temperature lubricant made of graphite, an alkylene polymer or copolymer and a dispersant is known. The polymer used in such lubricants burns off without residue during the shaping of the metal, it being possible to assume that initially the polymer melt and later its gaseous decomposition products are lubricating.
In der DE-OS 24 30 249 wird ein Hochtemperaturschmierstoff für die Heissumformung von Metallen auf der Basis eines Phosphat-Borat-Glases, eines die Schmierung verbrennenden Zusatzstoffes und eines Treibwirkung auslösen-10 den, rückstandsfrei sich zersetzenden organischen Produktes beschrieben. DE-OS 24 30 249 describes a high-temperature lubricant for the hot forming of metals on the basis of a phosphate-borate glass, an additive which burns the lubrication and a propelling effect which causes the organic product to decompose without residue.
Diese bekannten Schmiermittel erbringen an sich hervorragende Schmierleistungen. Für die Anwendung bei hohen Temperaturen, insbesondere bei der Verwendung auf Werk-15 zeugen oder Werkstücken, die Temperaturen von über 350 °C und besonders Temperaturen von 600 °C und darüber aufweisen, war aber ein starkes Abfallen der Schmierleistung zu beobachten. These known lubricants provide excellent lubrication per se. For use at high temperatures, especially when used on tools or workpieces that have temperatures of over 350 ° C and especially temperatures of 600 ° C and above, a sharp drop in the lubricating performance was observed.
Die Zusätze von Alkaliphosphatborat-Schmelzprodukten 20 ergeben ein Produkt, das als weiteren Nachteil schlechte Benetzungseigenschaften auf heissen Oberflächen zeigt. Um diesen Nachteil zu beheben, war es notwendig, die Schmiermitteldispersion mit Kieselsäuren zu stabilisieren. Die Kieselsäure ihrerseits hat aber wieder einen schlechten Einfluss auf 25 das Schmierverhalten und die Lebensdauer der Werkzeuge. Aufgabe der vorliegenden Erfindung war es, einen Hochtemperaturschmierstoff vorzuschlagen, der die genannten Nachteile nicht aufweist und bei Temperaturen über 600 °C zu geschlossenen und voll wirksamen Schmierfilmen führt. 30 Erfindungsgemäss wird die Aufgabe mit einem Hochtemperaturschmierstoff nach Anspruch 1 gelöst. The addition of alkali phosphate borate melt products 20 results in a product which, as a further disadvantage, shows poor wetting properties on hot surfaces. To overcome this disadvantage, it was necessary to stabilize the lubricant dispersion with silicas. The silica in turn has a bad influence on the lubrication behavior and the service life of the tools. The object of the present invention was to propose a high-temperature lubricant which does not have the disadvantages mentioned and which leads to closed and fully effective lubricating films at temperatures above 600.degree. 30 According to the invention the object is achieved with a high-temperature lubricant according to claim 1.
Zweckmässig besteht der anorganische Zusatz aus einer Mischung aus 0,2 bis 25 Gew.-% Borverbindung, 0,2 bis 98,8 Gew.-% Polyphosphat und 1 bis 99,6 Gew.-% Alkalisilikat. 35 Vorzugsweise kommen als Polyphosphate Madrellsche Salze oder Kurrolsche Salze zur Anwendung. Dabei handelt es sich um Verbindungen der Art (NaPCh)n mit n = 6-50000, vorzugsweise 6-10000. The inorganic additive advantageously consists of a mixture of 0.2 to 25% by weight boron compound, 0.2 to 98.8% by weight polyphosphate and 1 to 99.6% by weight alkali silicate. 35 Preferably, Madrell's salts or Kurrol's salts are used as polyphosphates. These are compounds of the type (NaPCh) n with n = 6-50000, preferably 6-10000.
Die Borverbindung kann in löslicher und vorzugsweise in 40 schwerlöslicher oder unlöslicher Form angewendet werden. The boron compound can be used in soluble and preferably in poorly soluble or insoluble form.
Als Borverbindung können beispielsweise Borax, Borsäure, B2O3, KBsOs • 4H2O angewendet werden. For example, borax, boric acid, B2O3, KBsOs • 4H2O can be used as the boron compound.
Das zur Anwendung gelangende Alkalisilikat ist bevorzugt ein Natronwasserglas oder Kaliwasserglas mit einem 45 SiCh-Gehalt zwischen 21 und 47 Gew.-%. The alkali silicate used is preferably a sodium water glass or potassium water glass with a 45 SiCh content between 21 and 47% by weight.
Die Anwendung der bevorzugt genannten unlöslichen oder schwerlöslichen Verbindung ist besonders vorteilhaft, im Hinblick auf die Benetzung heisser Oberflächen und insbesondere auf die gleichmässige Schichtdicke des Hochtempeso raturschmierstoffes auf den Werkzeug- und/oder Werk-stücksoberflächen bei Temperaturen über 350 °C und insbesondere bei 600 °C und darüber. The use of the preferred insoluble or sparingly soluble compound is particularly advantageous with regard to the wetting of hot surfaces and in particular to the uniform layer thickness of the high-temperature lubricant on the tool and / or workpiece surfaces at temperatures above 350 ° C. and in particular at 600 ° C and above.
Die Mengenverhältnisse der einzelnen Komponenten können für den Festschmierstoff 1 bis 90 Gew.-%, für das in 55 Wärme rückstandsfrei sich zersetzende organische Produkt 1 bis 50 Gew.-%, für den erfindungsgemässen anorganischen Zusatz 1 bis 80 Gew.-% und für das organische Stabilisie-rangsmittel 0,2 bis 80 Gew.-% betragen. The quantitative ratios of the individual components can be 1 to 90% by weight for the solid lubricant, 1 to 50% by weight for the organic product which decomposes without residue in 55 heat, 1 to 80% by weight for the inorganic additive according to the invention and organic stabilizing agents are 0.2 to 80 wt .-%.
In einer erfindungsgemässen, vorzugsweisen Ausführung 60 wird das sich rückstandsfrei zersetzende organische Produkt in Schmierstoffen zur Anwendung für Temperaturen bis 350 °C in Mengen von maximal 50 Gew.-%, und sich linear für Temperaturen von 600 °C und darüber auf maximal 5 Gew.-% verringernd, eingesetzt. In a preferred embodiment 60 according to the invention, the organic product which decomposes without residues is used in lubricants for use at temperatures up to 350 ° C. in amounts of at most 50% by weight, and is linear for temperatures of 600 ° C. and above to a maximum of 5% by weight. - reducing%, used.
65 Typische Schmierstoffe für eine Anwendung bei Temperaturen von 350 °C können demnach 40 bis 90 Gew.-% Festschmierstoff, 10 bis 50 Gew.-% organisches Produkt, 0,2 bis 5 Gew.-% anorganischen Zusatz und 0,2 bis 5 Gew.-% organi- 65 Typical lubricants for use at temperatures of 350 ° C can therefore contain 40 to 90% by weight solid lubricant, 10 to 50% by weight organic product, 0.2 to 5% by weight inorganic additive and 0.2 to 5 % By weight organic
sches Stabilisierungsmittel enthalten. cal stabilizer included.
Für Schmierstoffe, die bei Temperaturen von 600 0 C und darüber angewendet werden sollen, lautet die Zusammensetzung zweckmässig 10 bis 90 Gew.-% Festschmierstoff, 1 bis 15 Gew.-% organisches Produkt, 10 bis 80 Gew.-% anorganischer Zusatz und 0,2 bis 4 Gew.-% organisches Stabilisierungsmittel. For lubricants which are to be used at temperatures of 600 ° C. and above, the composition is expediently 10 to 90% by weight of solid lubricant, 1 to 15% by weight of organic product, 10 to 80% by weight of inorganic additive and 0 , 2 to 4 wt .-% organic stabilizing agent.
Als Festschmierstoff können Graphit, M0S2 (Molybdän-disulfid), CaF2 oder BN eingesetzt werden. Graphite, M0S2 (molybdenum disulfide), CaF2 or BN can be used as the solid lubricant.
Von den Festschmierstoffen führt Graphit zu besonders guten Ergebnissen. Aus der Reihe der Graphite werden solche mit hoher Reinheit, beispielsweise über 96%, und einer durchschnittlichen Korngrösse von nicht mehr als 300 Mikrometer bevorzugt. Die besten Ergebnisse lassen sich mit einem Graphit von 99,5% Reinheit und einer durchschnittlichen Korngrösse von 100 Mikrometer erzielen. Of the solid lubricants, graphite leads to particularly good results. From the range of graphites, those with high purity, for example over 96%, and an average grain size of not more than 300 micrometers are preferred. The best results can be achieved with a graphite of 99.5% purity and an average grain size of 100 micrometers.
Die sich in Wärme rückstandsfrei zersetzenden organischen Produkte sind beispielsweise Alkylenhomopolymere oder -copolymere. Es werden darunter die Homo- und Copo-lymere von Arylalkenen, a,ß-ungesättigte Säuren und Ester, ß,y-ungesättigten Säuren und Ester, Alkene (Monoolefine, Diolefine usw.), Vinylester, Vinylalkohole, ungesättigte diba-sische Säuren und Ester (Dicarboxalsäuren und -ester), Alkyl-ester und azyklische Säuren und Ester verstanden. The organic products which decompose without leaving any heat are, for example, alkylene homopolymers or copolymers. Among them are the homo- and copolymers of aryl alkenes, a, ß-unsaturated acids and esters, ß, y-unsaturated acids and esters, alkenes (monoolefins, diolefins etc.), vinyl esters, vinyl alcohols, unsaturated dibasic acids and Understood esters (dicarboxalic acids and esters), alkyl esters and acyclic acids and esters.
Das Alkylenhomopolymer oder -copolymer kann Polyäthylen, Polymethylmethacrylat, Polystyrol, Polybutadien, Poyvinylacetat, Poyvinylpropionat, ein Copolymer aus Methylmethacrylat und Styrol, ein Copolymer aus Methylen-methacrylat und Alphamethylstyrol, Polydiallylphthalat, Polypropylen, ein Copolymer aus Styrol und Butadien, Polymethylmethacrylat, ein Copolymer aus Vinylacetat und Dibu-tylmaleinat, ein Copolymer aus Vinylacetat und Aethylen und Polyisobutylen, sein. The alkylene homopolymer or copolymer may be polyethylene, polymethyl methacrylate, polystyrene, polybutadiene, polyvinyl acetate, polyvinyl propionate, a copolymer of methyl methacrylate and styrene, a copolymer of methylene methacrylate and alphamethylstyrene, polydiallyl phthalate, polypropylene, a copolymer of styrene and butadiene, polymethylene Vinyl acetate and dibutyl maleate, a copolymer of vinyl acetate and ethylene and polyisobutylene.
Diese Polymere können allein oder im Gemisch unterein-der angewendet werden. These polymers can be used alone or in a mixture with one another.
Der Hochtemperaturschmierstoff kann noch eine Reihe weiterer Zusätze enthalten. Dazu gehören mikrobiologisch aktive Komponenten und Netzmittel. The high-temperature lubricant can also contain a number of other additives. This includes microbiologically active components and wetting agents.
Besonders vorteilhaft an vorliegenden erfindungsgemässen Schmierstoffen ist die völlige Abwesenheit von Kieselsäure, die in der Regel in Form hochdispersen Siliciumoxids vorliegt und bei Zusammensetzungen, die Polyphosphate enthalten, als Stabilisator angewendet werden muss. Die Kieselsäure ist an sich unerwünscht, da sie einen schlechten Einfluss auf das Schmierverhalten und auf die Lebensdauer der Werkzeuge hat. The complete absence of silicic acid, which is usually in the form of highly disperse silicon oxide and which must be used as a stabilizer in compositions which contain polyphosphates, is particularly advantageous in the case of the lubricants according to the invention. The silica itself is undesirable because it has a bad influence on the lubrication behavior and on the service life of the tools.
Bei bekannten Formulationen war das Problem der Stabilisierung des Hochtemperaturschmierstoffes durch ein Ersetzen der Kieselsäure durch beispielsweise Cellulosen oder Polysaccharide nicht zu lösen. In wässriger Suspension neigen derartige Stoffgemiche zum Koagulieren und werden dann unbrauchbar. In known formulations, the problem of stabilizing the high-temperature lubricant by replacing the silica with, for example, celluloses or polysaccharides could not be solved. In aqueous suspension, such mixtures tend to coagulate and then become unusable.
Durch die erfindungsgemässe Mischung des anorganischen Zusatzes im Kombination mit den organischen Stabilisatoren konnten diese Nachteile behoben werden. These disadvantages could be eliminated by the inventive mixture of the inorganic additive in combination with the organic stabilizers.
Als organische Stabilisatoren eignen sich Polysaccharide und Cellulosen, vorzugsweise Alkylcellulosen. Suitable organic stabilizers are polysaccharides and celluloses, preferably alkyl celluloses.
660 023 660 023
Erfindungsgemäss soll der Hochtemperaturschmierstoff zum Gebrauch als 5 bis 50 gew.-%ige wässrige Dispersion vorliegen. Die Dispersion weist zweckmässig eine Viskosität von 0,5 bis 15 Pa s bei 10 bis 30 °C auf. According to the invention, the high-temperature lubricant should be present as a 5 to 50% by weight aqueous dispersion for use. The dispersion expediently has a viscosity of 0.5 to 15 Pa s at 10 to 30 ° C.
Um die Viskosität der Dispersion zu erreichen, kann schon der im Hochtemperaturschmierstoff enthaltene organische Stabilisator ausreichend sein. Es ist aber auch möglich, durch einen Verdicker oder ein Gemisch von Verdickern die Viskosität zu steuern. Aus der Reine vx>n geeigneten Verdik-kern eignen sich z.B. wasselösliche Polysaccharide, Alkylcellulosen, Polyvinyialkohole, Polyarylate, Polyvinvlpyrrolidon, gegebenenfalls Mineralien, wie Tone. The organic stabilizer contained in the high-temperature lubricant may be sufficient to achieve the viscosity of the dispersion. However, it is also possible to control the viscosity by means of a thickener or a mixture of thickeners. From the pure vx> n suitable thickeners, e.g. water-soluble polysaccharides, alkyl celluloses, polyvinyl alcohols, polyarylates, polyvinyl pyrrolidone, optionally minerals, such as clays.
Wie erwähnt, wird der Hochtemperaturschmierstoff in der Regel in Form einer wässrigen Dispersion angewendet. Die wässrige Dispersion kann auf das Werkzeug und/oder das zu bearbeitende Werkstück, die Temperaturen von 100 bis über 900 °C aufweisen können, aufgetragen werden. Bei der Berührung der heissen Oberflächen verdampft das Wasser, und es bildet sich ein Film gleichmässiger Schichtdicke aus. As mentioned, the high-temperature lubricant is usually used in the form of an aqueous dispersion. The aqueous dispersion can be applied to the tool and / or the workpiece to be machined, which can have temperatures of 100 to over 900 ° C. When the hot surfaces are touched, the water evaporates and a film of uniform layer thickness forms.
Erweist sich der Einsatz einer Dispersion als nicht zweckmässig, so kann der Hochtemperaturschmierstoff auch in pulverisierter Form eingesetzt werden. Dabei wird beispielsweise das Werkzeug und/oder das Werkstück eingepudert oder durch den Schmierstoff gerollt oder gezogen. If the use of a dispersion proves to be inappropriate, the high-temperature lubricant can also be used in powdered form. For example, the tool and / or the workpiece is powdered or rolled or drawn through the lubricant.
Die erfindungsgemässen Schmierstoffe eignen sich besonders für die Anwendung bei Temperaturen um 600 °C und darüber. Die hohe Temperaturstabilität der Schmierstoffe und insbesondere die Stabilität des Schmierfilmes wurden im wesentlichen durch den hohen Anteil an anorganischem Zusatz erreicht. The lubricants according to the invention are particularly suitable for use at temperatures around 600 ° C. and above. The high temperature stability of the lubricants and in particular the stability of the lubricating film were essentially achieved by the high proportion of inorganic additives.
Der erfindungsgemässe Hochtemperaturschmierstoff eignet sich deshalb beispielsweise für die Schmierung von Werkzeug, z.B. Dorn, Dornstange oder Matrize, und Werkstücken, beispielsweise Luppe oder Rohr, bei der Warmverformung in sogenannten «multiple pipe mills», Konti-Strassen, Pilgerschrittwalzwerken, Asselstrassen, Stossbankanlagen, Stangenpressen oder Anstauchpressen The high-temperature lubricant according to the invention is therefore suitable, for example, for the lubrication of tools, e.g. Mandrel, mandrel bar or die, and workpieces, such as billets or pipes, for hot forming in so-called "multiple pipe mills", continuous lines, pilgrim step rolling mills, Assel lines, push bench systems, bar presses or upsetting presses
Beispiel 1 example 1
Ein Hochtemperaturschmiermittel wurde hergestellt aus 70 Gew.-% Wasser und 30 Gew.-% schmieraktiven Bestandteilen, bestehend aus 54 Gew.-% kristallinem Graphit mit 96%iger Reinheit, 11 Gew.-% unlöslichem Natriummetaphosphat (Madrellsches Salz), 5 Gew.-% Borax, 10 Gew.-% Natriumsilikat (Wasserglas mit einem Molverhältnis Si02/Na20 = 3,3), 18 Gew.-% Polyäthylen in Pulverform (mit einem Schmelzindex von 70 g/10 Min. (nach ASTM D 1238-73 T), 2 Gew.-% Alkylcellulose. A high-temperature lubricant was produced from 70% by weight of water and 30% by weight of active lubricating constituents, consisting of 54% by weight of crystalline graphite with a purity of 96%, 11% by weight of insoluble sodium metaphosphate (Madrell's salt), 5% by weight. -% borax, 10% by weight sodium silicate (water glass with a molar ratio Si02 / Na20 = 3.3), 18% by weight polyethylene in powder form (with a melt index of 70 g / 10 min. (According to ASTM D 1238-73 T), 2 wt .-% alkyl cellulose.
Das Hochteperaturschmiermittel wies eine Viskosität von 1,9 Pa s, gemessen bei 20° C nach Epprecht mit einem Rhéo-mat 15 der Contraves, auf. Die vorliegende Formulation zeigte die günstigsten Eigenschaften bei relativ niedrigen Anwendungstemperaturen von 20 bis 250° C in Kontistrassen oder Pilgerstrassen. The high-temperature lubricant had a viscosity of 1.9 Pa s, measured at 20 ° C according to Epprecht with a Rhéo-mat 15 of the Contraves. The present formulation showed the most favorable properties at relatively low application temperatures of 20 to 250 ° C in contours or pilgrim streets.
Die genannte Formulation wurde mittels einer Sprühvorrichtung auf Werkzeuge (z.B. Dorne) gesprüht. Der Reibungskoeffizient war 0,037. The above-mentioned formulation was sprayed onto tools (e.g. mandrels) using a spray device. The coefficient of friction was 0.037.
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Claims (13)
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH2651/84A CH660023A5 (en) | 1984-05-30 | 1984-05-30 | HIGH-TEMPERATURE LUBRICANT FOR CHIP-FREE HOT FORMING OF METALS. |
CN198585103499A CN85103499A (en) | 1984-05-30 | 1985-04-29 | The high temperature lubricant of used in chipless-hot working of metals |
ZA853630A ZA853630B (en) | 1984-05-30 | 1985-05-14 | High temperature lubricant |
RO118967A RO92319B (en) | 1984-05-30 | 1985-05-20 | Lubricant for hot forming metals without cutting |
DD85276675A DD233379A5 (en) | 1984-05-30 | 1985-05-24 | HIGH-TEMPERATURE LUBRICANT FOR THE SPANLESS HOT FORMING OF METALS |
SU853900950A SU1395145A3 (en) | 1984-05-30 | 1985-05-28 | Lubricating material for hot plastic metal working |
PL1985253665A PL142820B1 (en) | 1984-05-30 | 1985-05-28 | High-temperature resisting grease for use in hot plastic working of metals |
EP85106532A EP0164637A1 (en) | 1984-05-30 | 1985-05-28 | High-temperature lubricant for the non-cutting hot-forming of metals |
HU852061A HUT38121A (en) | 1984-05-30 | 1985-05-29 | Heat-proof lubricant for hot forming metals without cutting |
CS853862A CS251787B2 (en) | 1984-05-30 | 1985-05-29 | High-temperature lubricant for chipless metal hot forming |
JP60114449A JPS612797A (en) | 1984-05-30 | 1985-05-29 | High temperature lubricant for metal non-cutting thermal working |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH2651/84A CH660023A5 (en) | 1984-05-30 | 1984-05-30 | HIGH-TEMPERATURE LUBRICANT FOR CHIP-FREE HOT FORMING OF METALS. |
Publications (1)
Publication Number | Publication Date |
---|---|
CH660023A5 true CH660023A5 (en) | 1987-03-13 |
Family
ID=4238541
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH2651/84A CH660023A5 (en) | 1984-05-30 | 1984-05-30 | HIGH-TEMPERATURE LUBRICANT FOR CHIP-FREE HOT FORMING OF METALS. |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP0164637A1 (en) |
JP (1) | JPS612797A (en) |
CN (1) | CN85103499A (en) |
CH (1) | CH660023A5 (en) |
CS (1) | CS251787B2 (en) |
DD (1) | DD233379A5 (en) |
HU (1) | HUT38121A (en) |
PL (1) | PL142820B1 (en) |
RO (1) | RO92319B (en) |
SU (1) | SU1395145A3 (en) |
ZA (1) | ZA853630B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0743352A1 (en) * | 1995-05-16 | 1996-11-20 | Timcal Ag | Lubricant composition suitable for application on metal workpieces during hot-forming |
Families Citing this family (26)
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JPH07107157B2 (en) * | 1986-02-07 | 1995-11-15 | 新日鐵化学株式会社 | Lubricant composition for high temperature |
CH669129A5 (en) * | 1986-04-04 | 1989-02-28 | Lonza Ag | LUBRICANT SYSTEM FOR SHEET AND PROFILE ROLLING MILLS. |
US5271854A (en) * | 1986-09-23 | 1993-12-21 | Lonza Ltd. | High temperature lubricant containing carboxylated styrene-butadiene latex |
CH674096A5 (en) * | 1988-01-19 | 1990-04-30 | Lonza Ag | |
JPH0230312A (en) * | 1988-04-18 | 1990-01-31 | Kawasaki Steel Corp | Hot rolling method for seamless steel pipe and seizure preventing agent |
JPH0230311A (en) * | 1988-04-18 | 1990-01-31 | Kawasaki Steel Corp | Skew rolling method for seamless steel tube and seizure preventing agent |
JPH07122069B2 (en) * | 1989-06-09 | 1995-12-25 | 住友金属工業株式会社 | Hot lubricant |
US5099667A (en) * | 1989-06-16 | 1992-03-31 | Lonza Ltd. | System for suspending and applying solid lubricants to tools or work pieces |
EP0448944B1 (en) * | 1990-03-26 | 1994-09-14 | Lonza Ag | Method and device for intervalwise spraying of a suspension of lubricant |
US5242506A (en) * | 1990-10-19 | 1993-09-07 | United Technologies Corporation | Rheologically controlled glass lubricant for hot metal working |
DE69103160T2 (en) * | 1990-10-19 | 1994-11-03 | United Technologies Corp | Glass-based rheologically controllable lubricant for hot metal processing. |
US5294355A (en) * | 1992-12-28 | 1994-03-15 | Desilube Technology, Inc. | Thermally and oxidatively stable solid lubricants |
WO1998000483A1 (en) * | 1996-07-02 | 1998-01-08 | Chemische Fabrik Budenheim Rudolf A. Oetker | Lubricant and use thereof |
US7225949B2 (en) | 2002-04-04 | 2007-06-05 | Nipro Corporation | Liquid drug container |
DE102006047621A1 (en) * | 2006-10-09 | 2008-04-10 | Chemische Fabrik Budenheim Kg | Graphite-containing high-temperature lubricant for precious and carbon steels |
US8283296B2 (en) * | 2006-10-11 | 2012-10-09 | Henkel Ag & Co., Kgaa | Lubricant for hot forging applications |
DE102008016348B4 (en) | 2008-03-29 | 2010-07-29 | Stefan Graichen | High temperature lubricants and their use in a process for hot working metals |
US8250890B2 (en) | 2009-04-22 | 2012-08-28 | GM Global Technology Operations LLC | Method to improve solid lubricant film tribological performance and adhesion to hot forming material |
CN101811173A (en) * | 2010-04-28 | 2010-08-25 | 启东尤希路化学工业有限公司 | Graphite-free high-performance environment-friendly hot forging processing liquid |
CN102093927A (en) * | 2010-12-03 | 2011-06-15 | 无锡润鹏复合新材料有限公司 | Graphite-oxide composite solid lubricant for hot-rolled seamless steel pipe and preparation method thereof |
DE102013102897A1 (en) | 2013-03-21 | 2014-09-25 | Chemische Fabrik Budenheim Kg | Composition for protection against scale and as a lubricant for the hot processing of metals |
CN103242936B (en) * | 2013-04-26 | 2014-07-02 | 河南师范大学 | Solid cutting fluid and preparation method thereof |
WO2014195166A1 (en) * | 2013-06-07 | 2014-12-11 | Hydro Aluminium Rolled Products Gmbh | Coating of a metal sheet or strip |
EP3124582B1 (en) * | 2014-03-28 | 2022-09-07 | Nihon Parkerizing Co., Ltd. | Aqueous lubricating coating agent having excellent corrosion resistance and workability, and metal material |
BR112022015954A2 (en) * | 2020-03-16 | 2022-10-11 | Budenheim Kg Chemische Fabrik | COMPOSITION FOR LUBRICATION AND/OR DESCALING DURING HOT METAL PROCESSING |
CN114703011B (en) * | 2021-11-11 | 2023-07-14 | 西峡县三胜新材料有限公司 | Preparation and application methods of inorganic salt-based high-temperature lubricant for high-temperature core rod of push bench |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1438215A (en) * | 1974-05-08 | 1976-06-03 | Lonz Ltd | High temperature lubricant |
DE2430249C3 (en) * | 1974-06-24 | 1977-03-17 | Chemische Fabrik Budenheim Rudolf A. Oetker, 6501 Budenheim | HIGH TEMPERATURE LUBRICANT FOR THE HOT FORMING OF METALS |
-
1984
- 1984-05-30 CH CH2651/84A patent/CH660023A5/en not_active IP Right Cessation
-
1985
- 1985-04-29 CN CN198585103499A patent/CN85103499A/en active Pending
- 1985-05-14 ZA ZA853630A patent/ZA853630B/en unknown
- 1985-05-20 RO RO118967A patent/RO92319B/en unknown
- 1985-05-24 DD DD85276675A patent/DD233379A5/en unknown
- 1985-05-28 PL PL1985253665A patent/PL142820B1/en unknown
- 1985-05-28 SU SU853900950A patent/SU1395145A3/en active
- 1985-05-28 EP EP85106532A patent/EP0164637A1/en not_active Withdrawn
- 1985-05-29 HU HU852061A patent/HUT38121A/en unknown
- 1985-05-29 CS CS853862A patent/CS251787B2/en unknown
- 1985-05-29 JP JP60114449A patent/JPS612797A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0743352A1 (en) * | 1995-05-16 | 1996-11-20 | Timcal Ag | Lubricant composition suitable for application on metal workpieces during hot-forming |
Also Published As
Publication number | Publication date |
---|---|
JPS612797A (en) | 1986-01-08 |
HUT38121A (en) | 1986-04-28 |
SU1395145A3 (en) | 1988-05-07 |
CN85103499A (en) | 1986-10-29 |
CS251787B2 (en) | 1987-08-13 |
ZA853630B (en) | 1985-12-24 |
PL253665A1 (en) | 1986-02-25 |
EP0164637A1 (en) | 1985-12-18 |
CS386285A2 (en) | 1986-12-18 |
PL142820B1 (en) | 1987-12-31 |
RO92319A (en) | 1987-11-30 |
DD233379A5 (en) | 1986-02-26 |
RO92319B (en) | 1987-12-01 |
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PL | Patent ceased |