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EP0968263B1 - Utilisation d'un refrigerant lubrifiant sous forme d'emulsion pour l'usinage de metaux par enlevement des copeaux - Google Patents

Utilisation d'un refrigerant lubrifiant sous forme d'emulsion pour l'usinage de metaux par enlevement des copeaux Download PDF

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Publication number
EP0968263B1
EP0968263B1 EP98905317A EP98905317A EP0968263B1 EP 0968263 B1 EP0968263 B1 EP 0968263B1 EP 98905317 A EP98905317 A EP 98905317A EP 98905317 A EP98905317 A EP 98905317A EP 0968263 B1 EP0968263 B1 EP 0968263B1
Authority
EP
European Patent Office
Prior art keywords
water
oil
weight
parts
cooling lubricant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP98905317A
Other languages
German (de)
English (en)
Other versions
EP0968263A1 (fr
Inventor
Karl Sigg
Hartmut Rieger
Jürgen Geke
Wiltrud Klose
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.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
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Publication date
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Publication of EP0968263A1 publication Critical patent/EP0968263A1/fr
Application granted granted Critical
Publication of EP0968263B1 publication Critical patent/EP0968263B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C10M173/00—Lubricating compositions containing more than 10% water
    • 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
    • C10M125/10—Metal oxides, hydroxides, carbonates or bicarbonates
    • 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
    • C10M125/26—Compounds containing silicon or boron, e.g. silica, sand
    • 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
    • C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
    • C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
    • C10M129/04—Hydroxy compounds
    • C10M129/06—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M129/08—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least 2 hydroxy groups
    • C—CHEMISTRY; METALLURGY
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    • C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
    • C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
    • C10M129/04—Hydroxy compounds
    • C10M129/10—Hydroxy compounds having hydroxy groups bound to a carbon atom of a six-membered aromatic ring
    • C—CHEMISTRY; METALLURGY
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    • C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
    • C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
    • C10M129/16—Ethers
    • C—CHEMISTRY; METALLURGY
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    • C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
    • C10M129/26—Carboxylic acids; Salts thereof
    • C10M129/28—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M129/30—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 7 or less carbon atoms
    • C10M129/32—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 7 or less carbon atoms monocarboxylic
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    • C10M129/26—Carboxylic acids; Salts thereof
    • C10M129/28—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M129/38—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms
    • C10M129/40—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms monocarboxylic
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    • C10M129/26—Carboxylic acids; Salts thereof
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    • C10M129/42—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms polycarboxylic
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    • C10M129/68—Esters
    • C10M129/74—Esters of polyhydroxy compounds
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    • C10M129/68—Esters
    • C10M129/76—Esters containing free hydroxy or carboxyl groups
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    • 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
    • C10M133/08—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups
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    • 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
    • C10M133/16—Amides; Imides
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    • C10M133/22—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms containing a carbon-to-nitrogen double bond, e.g. guanidines, hydrazones, semicarbazones
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    • C10M133/38—Heterocyclic nitrogen compounds
    • C10M133/44—Five-membered ring containing nitrogen and carbon only
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    • C10M145/18—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M145/24—Polyethers
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    • C10M159/02—Natural products
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    • C10N2040/20—Metal working
    • C10N2040/22—Metal working with essential removal of material, e.g. cutting, grinding or drilling
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    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/01—Emulsions, colloids, or micelles
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    • C10N2070/02—Concentrating of additives

Definitions

  • the invention relates to the use of a water-mixed cooling lubricant emulsion for machining metals, which is obtainable by mixing a water-miscible concentrate of a coolant lubricant emulsion with water and dispersed into the resulting mixture a water-immiscible cutting oil on a native basis under high shear.
  • Cooling lubricants are preparations / mixtures used in metal cutting and metal forming for cooling and lubricating the tools.
  • the most important machining processes are distinguished by the type of movements that the machined part and tool perform, the geometry of the parts to be machined and the machining parameters. For example, a distinction is made between milling, turning, drilling and grinding as machining operations as well as rolling, deep-drawing and cold extrusion as chipless forming.
  • the common principle of the metal cutting machining methods is that the tool cutting edge engages the material, thereby lifting a chip from the surface, thus creating a new surface. For the fragmentation of the material very high pressures are required. The deformation of the chip and the resulting friction under pressure produces heat that heats the workpiece, the tool and above all the chips.
  • the desired effect of the use of cooling lubricants is therefore the lowering of the temperature, otherwise in the chips z. B. can rise to 1000 ° C, and in the manufactured parts influence on the dimensional stability.
  • Another major task of the coolants is to improve the tool life which quickly wears out under the influence of high temperature.
  • the roughness of the surfaces is reduced because the lubricant prevents welding of tool and workpiece surface and avoids the adhesion of particles.
  • the cooling lubricant takes over the task of removing the chips formed.
  • Water-mixed coolants are manufactured by the user by mixing a concentrate of the water-miscible cooling lubricant with process water. As a rule, about 5% aqueous emulsions are produced.
  • the advantage of this type of cooling lubricant is the good cooling effect, which is based on the thermal properties of the water. Due to the good cooling effect, it is possible to achieve very high working speeds and thus to increase the productivity of machines.
  • the lubricating effect of the water-mixed cooling lubricants is sufficient for most machining processes in machining. Another advantage is the low cost that can be achieved by the possible mixing of the concentrate with water.
  • water-mixed cooling lubricants are against Foreign influences, especially against the infestation by microorganisms are sensitive and therefore require more control and care than non-water-miscible cooling lubricants such as cutting oils, grinding oils and forming oils.
  • Non-water-miscible and water-miscible cooling lubricants are often based on mineral oil.
  • the mineral oil grades used are predominantly combinations of paraffinic, naphthenic and aromatic hydrocarbon compounds.
  • so-called synthetic lubricants such as polyalphaolefins, polyalkylene glycols and glycol ethers, dialkyl ethers, acetals, natural ester oils and synthetic esters and their derivatives are also important.
  • cooling lubricants In order to meet the requirements of the practice, cooling lubricants must contain various components in addition to the base oil.
  • the most important substance groups are emulsifiers, corrosion protection additives, biocides, EP additives, polar additives, anti-fog additives, anti-aging agents, solid lubricant additives and defoamers.
  • Emulsifiers eg, surfactants, petroleum sulfonates, alkali soaps, alkanolamine soaps
  • Emulsifiers stabilize the fine distribution of oil droplets in the aqueous working fluid, which is an oil-in-water emulsion.
  • the emulsifiers are quantitatively an important group of additives in the water-miscibleméschmierstofferl.
  • Conventional corrosion protection additives for example alkanolamines and their salts, sulfonates, organic boron compounds, fatty acid amides, aminodicarboxylic acids, phosphoric acid esters, thiophosphonic acid esters, dialkyldithiophosphates, mono- and dialkylarylsulfonates, benzotriazoles, polyisobutene-succinic acid derivatives
  • Some corrosion protection additives have simultaneously emulsifying properties and therefore find their application as an emulsifier.
  • Biocides eg phenol derivatives, formaldehyde derivatives, Kathon MW
  • EP additives eg sulphurised fats and oils, phosphorus compounds, organochlorine Compounds
  • Polar additives eg natural fats and oils, synthetic esters
  • Anti-aging agents eg organic sulfides, zinc dithiophosphates, aromatic amines ensure a long service life of the cooling lubricants.
  • the second important function of the cooling lubricants lies in the lubricating effect (see the article by W. Klose: "Cooling Lubricants on Metal Surfaces", Mitanderen of the Association of German Enamel Experts, 41, Issue 11, pages 138-142 (1993)). Accordingly, the effect of the lubricating components is based on the formation of surface layers which have a lower shear strength relative to the base material and thus reduce friction and wear. The spectrum of surface states ranges from adsorptively bound layers via chemisorption to chemical reaction layers, which create a solid bond to the metal surface.
  • lubricant coating on a surface is adsorptive lubricant layers. They are produced for example by mineral oils without special additives.
  • the formation of the adsorption layers can be enhanced by additions of polar active substances such as fatty alcohols or fatty esters.
  • polar active substances such as fatty alcohols or fatty esters.
  • an interaction between the metal surface and the lubricant molecules occurs, which leads to a partial chemisorptive binding of the fatty alcohols or fatty esters.
  • chemisorptive lubricant coaters are fatty acids.
  • the hydrophilic carboxyl group is chemically bonded to the metal surface by reaction with the metal atoms and the hydrophobic hydrocarbon radical aligns perpendicular to the surface.
  • the increased adhesive strength of the chemisorptive layer improves the Pressure absorption capacity compared to purely adsorptive lubricant layers, but is not sufficient for many cases of metal forming to reduce friction and wear.
  • EP or AW additives extreme pressure or anti-wear additives
  • These are usually chloro, phosphorus or sulfur-containing agents.
  • reaction layers in the form of metal chlorides, metal phosphates or metal sulfides.
  • the reaction layers formed on the metal surface act on the one hand as solid lubricant layers, which are constantly removed and renewed during the forming process. On the other hand, they form monomolecular surface films that can attach further lubricant components.
  • Water-mixed cooling lubricants are a widely used type of cooling lubricant. In practice, however, different water-mixed cooling lubricants are used to meet the different requirements with regard to corrosion protection for the various materials being processed, lubricity at high operating speed, service life and not least safety at work and environmental behavior. Manufacturers of coolant concentrates therefore have to produce many different types, keep them in stock and transport them in small batches. The user may have to discard usable emulsions if a different type of coolant lubricant is required because of changed materials. These processes are costly and environmentally disadvantageous.
  • US-A-4 027 512 relates to an oil-in-water cooling lubricant emulsion containing a free fatty acid dissolved in a solvent. This solution is then part of the oil phase of the emulsion. In the examples it is shown that the addition of a fatty acid without a solvent does not produce the desired effect.
  • inhomogeneous mixture means that the cutting oil is not emulsified into the water-miscible cooling lubricant emulsion. In the case of emulsifying the cutting oil, lubrication is insufficient.
  • the object of the invention is to provide a new type of water-mixed cooling lubricant emulsion for use for machining metals, which can be used for a broader range of applications.
  • a novel type of cooling lubricant is provided by the invention, so that it is possible to emulsify a non-water-miscible, native-based cutting oil into a per se conventional water-blended cooling lubricant emulsion by using high shear energy and thereby obtain a stable oil-in-water emulsion ,
  • Such a combination with at least two different oil components can be used for a wide range of applications.
  • the proportions of cutting oil to the proportions of water-miscible concentrate such as 10 to 80 to 100 and in particular such as 20 to 70 to 100 behave.
  • the invention is thus based mainly on, in contrast to the usual teachings of practice in a conventional per se coolant emulsion situatergieren a per se water-immiscible cutting oil on a native basis.
  • a high shear energy compared to the prior art for the production of water-mixed coolant emulsions is required.
  • intensive mixers such as an Ultraturrax (number of revolutions 10,000 to 20,000 revolutions per minute) or high-speed rotor-stator systems come into consideration.
  • Ultraturrax it is dispersed at 20,000 revolutions per minute for a period of about 1 to about 5 minutes.
  • An alternative to this during operation is to add the cutting oil in the running system at a point of high turbulence. The dispersion then takes place by the shear forces during the metalworking processes.
  • the Einzelkömponenten are known as coolants or as concentrates for cooling lubricant emulsions in the prior art.
  • an emulsion concentrate composed of from about 20 to about 60% by weight of an oil component, preferably ester oil, but also paraffinic or naphthenic mineral oil, which desirably contains lubricity additives, and 0 to 25% by weight Water.
  • the remainder to 100 wt .-% consists of emulsifiers, preferably based on fatty alcohol ethoxylates, from corrosion inhibitors, preferably based on alkali metal carboxylates, amine soaps, ethanolamine soaps and / or ethanolamides, and optionally from other known for this product group in the art auxiliary or Active ingredients, as they are mentioned for example in the example concentrates.
  • mineral oil synthetic oils such as polyolefins can be used.
  • Alternative oil components with increased biodegradability are acetals or dialkyl ethers.
  • the concentrate of a water-miscible cooling lubricant emulsion used in substep a) can be composed of (data in% by weight):
  • oils are used in step b) ester-based.
  • these are native triglycerides or modification products thereof, wax esters and fatty acid esters of monoalkanols having 4 to 12 carbon atoms, for example tallow fatty acid ethylhexyl ester or transesterified rapeseed oil, and fatty acid esters of polyols, where trimethylolpropane can be used as the polyol component.
  • the oils may contain additional auxiliaries, in particular EP additives, for example in the form of sulfurized compounds, antioxidants and corrosion inhibitors.
  • the non-water-miscible cutting oil is selected from oxidation-stabilized fatty acid glycerides in the form of triesters having three fatty acids having 14 to 22 carbon atoms per fatty acid and oxidation-stabilized diesters having two fatty acids having 12 to 22 carbon atoms per fatty acid.
  • the ready-to-use water-mixed cooling lubricant emulsion of the oil-in-water type to be used according to the invention can be produced directly by the user.
  • the emulsion could also be manufactured centrally and transported to the individual users. This is uneconomical and environmentally detrimental, as this large quantities of water would have to be transported.
  • a user of a conventional coolant lubricant emulsion can also exercise the present invention by subsequently dispersing a cutting oil, as described above, in this previously commissioned emulsion in accordance with sub-step b).
  • the emulsions to be used lead to better frictional wear values than conventional emulsions without the addition of a water-immiscible cutting oil on a native basis. They also cause improved corrosion protection. In scanning electron micrographs they act like a "two-phase lubricant" with a finely emulsified O / W emulsion and coarsely dispersed cutting oil.
  • the droplet sizes themselves are dependent on the shear conditions and therefore may vary. However, the ranges of droplet sizes overlap, so that in particle size determinations with light scattering methods, for example with a Sympatec Helios Vectra device, usually only receives a distribution maximum. This is preferably in the range between about 0.5 and about 8 microns, in particular between about 1 and about 4 microns.
  • the particle size can also be determined by light microscopy or video microscopy.
  • the ready-mixed water-mixed cooling lubricant emulsion is therefore characterized in that it is an oil-in-water emulsion in which more than 95% of the oil particles are smaller than 0.5 .mu.m and in which the water-immiscible cutting oil is so dispersed that it at least 50% in the form of particles having a size in the range of 0.5 to 8 microns.
  • the abovementioned concentrates 1 and 3 were used as water-miscible concentrates according to sub-step a).
  • the parts by weight of concentrate given in the table below were stirred into as many parts by weight of water (with a water hardness corresponding to 20 ° German hardness) with a glass rod that 100 parts by weight of a conventional coolant lubricant emulsion emerged.
  • the comparative experiments 1a and 1b as well as 3a and 3b were carried out.
  • Lubricating lubricant emulsions according to the invention were obtained by emulsifying in the emulsion according to 1a 2 parts by weight and in emulsion 3a one part by weight of a native cutting oil based on esters.
  • the cutting oil consisted of a mixture of oxidation-stabilized fatty acid glycerides in the form of triesters having three fatty acids having 14 to 22 C atoms per fatty acid and tixation-stabilized diesters having two fatty acids having 12 to 22 C atoms per fatty acid (P3-multan R 201, Henkel KGaA, Dusseldorf).
  • the cutting oil of the water-mixed emulsion was added and dispersed with an Ultraturrax for one minute at 20,000 revolutions per minute.
  • a friction wear test according to Reichert was carried out. This method is used to determine the pressure absorption capacity (EP behavior), as well as to determine the adhesion of liquid lubricants.
  • EP behavior pressure absorption capacity
  • a test roller is adapted by means of a lever system to a rotating slip ring, which dips with its lower third in the lubricant to be tested.
  • the test roller cleaned in petroleum spirit is installed in the swiveling holder.
  • the holder is swung in and clamped.
  • the slip ring remains clamped several test runs in the device, where it is also cleaned after each test run with boiling fuel.
  • the test roller is brought to the slip ring by slowly applying the load weight (1.5 kg).
  • the counter located on the Reichert scales is set to 0.
  • the rotating slip ring immersed in the lubricant continuously supplies the contact point with lubricant.
  • the test roller is removed from the slip ring.
  • the test roll is removed and the resulting ground mark measured by means of a measuring magnifier.
  • the ellipse area is calculated to be 0.785 * longitude * latitude, or is read by means of a number table. As many test runs are carried out until the ellipse areas of the last 3 test runs do not differ from each other by more than 10%.
  • the pressure absorption capacity is greater, the smaller the determined ellipse surface.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Lubricants (AREA)

Claims (7)

  1. Utilisation d'une émulsion aqueuse d'un lubrifiant refroidisseur, qui peut être obtenu en ce que :
    a) on mélange 2 à 15 parties en poids d'un concentré miscible à l'eau d'une émulsion d'un lubrifiant refroidisseur, avec 98 à 85 parties en poids d'eau, de façon à obtenir un mélange comprenant 100 parties en poids, et ensuite
    b) on disperse dans le mélange obtenu en a) 1 à 14 parties en poids d'une huile de coupe non miscible à l'eau d'origine naturelle, choisie parmi les huiles à base d'esters, sous cisaillement intense, en effectuant le cisaillement de telle façon, que l'on obtienne une émulsion huile-dans-l'eau, dans laquelle plus de 95 % des particules d'huile sont inférieures à 0,5 µm et dans laquelle l'huile de coupe non miscible à l'eau est dispersée de façon à ce qu'elle soit constituée, dans une proportion d'au moins 50 %, de particules ayant une taille comprise dans la gamme de 0,5 à 8 µm, pour l'usinage des métaux par enlèvement de copeaux.
  2. Utilisation selon la revendication 1, caractérisée en ce que le concentré de l'émulsion miscible à l'eau d'un lubrifiant refroidisseur de l'étape a) est constitué de 20 à 60 % en poids d'un composant huile qui contient, si on le souhaite, des additifs de lubrification, et de 0 à 25 % d'eau, le complément à 100 % en poids étant constitué d'émulsifiants, de préférence à base d'éthoxylates d'alcools gras, d'inhibiteurs de corrosion, de préférence à base de carboxylates de métaux alcalins, de savons à base d'amines, de savons d'éthanolamine et/ou d'éthanolamide, ainsi que d'autres adjuvants ou substances actives.
  3. Utilisation selon l'une des revendications 1 et 2, ou selon les deux, caractérisée en ce que l'huile de coupe non miscible à l'eau de l'étape b) est choisie parmi les triglycérides naturels ou les produits issus de leur modification, les esters de cire, les esters d'acides gras de monoalcools comprenant 4 à 12 atomes de C, ou les esters d'acides gras de polyols ou de leurs mélanges, l'huile pouvant contenir des additifs supplémentaires, en particulier des additifs EP, des protecteurs d'oxydation et des inhibiteurs de corrosion.
  4. Utilisation selon la revendication 3, caractérisée en ce que l'huile de coupe non miscible à l'eau est choisie parmi les glycérides d'acides gras stabilisés vis-à-vis de l'oxydation sous forme de triesters formés avec trois acides gras comprenant de 14 à 22 atomes de C par acide gras, et de diesters stabilisés vis-à-vis de l'oxydation formés avec deux acides gras comprenant 12 à 22 atomes de C par acide gras.
  5. Utilisation selon l'une ou plusieurs des revendications 1 à 4, caractérisée en ce que le composant huile du concentré de l'émulsion miscible à l'eau d'un lubrifiant refroidisseur de l'étape a) est choisi parmi les huiles minérales aliphatiques ou naphténiques, les huiles à base d'esters, les polyoléfines, les acétals ou les dialkyléthers.
  6. Utilisation selon l'une ou plusieurs des revendications 1 à 5, caractérisée en ce que l'on met en oeuvre moins de parties en poids de l'huile de coupe non miscible à l'eau que de parties en poids de concentré miscible à l'eau.
  7. Utilisation selon la revendication 6, caractérisée en ce que le rapport de l'huile de coupe au concentré miscible à l'eau est de 10 à 80 pour 100, de préférence de 20 à 70 pour 100.
EP98905317A 1997-01-29 1998-01-20 Utilisation d'un refrigerant lubrifiant sous forme d'emulsion pour l'usinage de metaux par enlevement des copeaux Expired - Lifetime EP0968263B1 (fr)

Applications Claiming Priority (3)

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DE19703085 1997-01-29
DE19703085A DE19703085A1 (de) 1997-01-29 1997-01-29 Kühlschmierstoffemulsion
PCT/EP1998/000277 WO1998032818A1 (fr) 1997-01-29 1998-01-20 Refrigerant lubrifiant sous forme d'emulsion

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EP0968263A1 EP0968263A1 (fr) 2000-01-05
EP0968263B1 true EP0968263B1 (fr) 2007-01-03

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EP (1) EP0968263B1 (fr)
AT (1) ATE350437T1 (fr)
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WO (1) WO1998032818A1 (fr)

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EP1123965A1 (fr) * 2000-02-08 2001-08-16 Mobil Oil Francaise Composition d'huile pour le laminage à froid d'acier et d'acier inoxydable
EP1123971A1 (fr) * 2000-02-08 2001-08-16 Mobil Oil Francaise Composition soluble dans l'eau pour le laminage à froid et à chaud de cuivre, d'aliages de cuivre et de produits intermédiaires non-ferreux
ES2172412B1 (es) * 2000-07-21 2003-10-01 Nueva Fl Iberica S A Procedimiento para la preparacion de fluidos lubrificantes de corte.
FR2842821B1 (fr) * 2002-07-26 2005-10-28 Pollen Union De Cooperatives A Huile de coupe a base d'huiles vegetales
US20040229765A1 (en) * 2003-05-16 2004-11-18 Xiomara Gutierrez Surfactant package and water in hydrocarbon emulsion using same
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US6245723B1 (en) 2001-06-12
TR199901716T2 (en) 1999-09-21
DE59813870D1 (de) 2007-02-15
EP0968263A1 (fr) 2000-01-05
ATE350437T1 (de) 2007-01-15
WO1998032818A1 (fr) 1998-07-30

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