WO2009026916A2 - Réfrigérant lubrifiant - Google Patents
Réfrigérant lubrifiant Download PDFInfo
- Publication number
- WO2009026916A2 WO2009026916A2 PCT/DE2008/001460 DE2008001460W WO2009026916A2 WO 2009026916 A2 WO2009026916 A2 WO 2009026916A2 DE 2008001460 W DE2008001460 W DE 2008001460W WO 2009026916 A2 WO2009026916 A2 WO 2009026916A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cooling lubricant
- mass
- lubricant according
- water
- methyl
- Prior art date
Links
Classifications
-
- 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
- C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating tools or work
- B23Q11/1038—Arrangements for cooling or lubricating tools or work using cutting liquids with special characteristics, e.g. flow rate, quality
- B23Q11/1061—Arrangements for cooling or lubricating tools or work using cutting liquids with special characteristics, e.g. flow rate, quality using cutting liquids with specially selected composition or state of aggregation
-
- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/022—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least two hydroxy groups
-
- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/022—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least two hydroxy groups
- C10M2207/0225—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least two hydroxy groups used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
-
- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/127—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids polycarboxylic
-
- 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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2215/042—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Alkoxylated derivatives thereof
-
- 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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/223—Five-membered rings containing nitrogen and carbon only
-
- 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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/02—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds
-
- 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
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/04—Molecular weight; Molecular weight distribution
-
- 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
Definitions
- the invention relates to a cooling lubricant for machine tools. According to a second aspect, the invention relates to a machining process.
- Cooling lubricants are used in manufacturing technology for cutting and forming on machine tools of heat dissipation and the reduction of friction between the tool and the workpiece by lubrication. In addition, during machining processes they are used to remove the chips by rinsing them out of the working environment. During cutting and forming, friction occurs between the tool and the workpiece. Cooling lubricants reduce the wear of the tool by reducing this friction and counteract heating of the workpiece and the tool.
- metalworking lubricants are divided into the two main groups of non-water-miscible and water-miscible coolant lubricants.
- the former are used undiluted and have their strengths in the areas of friction and wear-reducing properties as well as in the area of disposal or recycling.
- the latter are diluted with water before use and have their strengths in the cooling effect, in the rinsing and wetting action as well as in the area of fire and explosion protection.
- the water-miscible cooling lubricants are subdivided further into the water-soluble and the emulsifiable cooling lubricants.
- water-soluble emulsifiable KSS a water-immiscible oil phase, which is dispersed by means of emulsifiers in the water phase.
- water-soluble cooling lubricants are characterized by better rinsing power and emulsifiable cooling lubricants through better corrosion protection and better friction-reducing properties.
- a low-viscosity base oil (kinematic viscosity: 5-15 mm 2 / s at 40 °) is used, which is characterized by a good viscosity-temperature behavior (high viscosity index), a relatively high flash point , good aging stability and low aerosol formation potential should distinguish.
- hydrocracking mineral oil or even polyalphaolefins are used for this purpose.
- ester additives are used. Wear protection additives, aging protection, anti-fog additives to reduce the aerosol formation potential and possibly a non-ferrous metal additive add-on complete the grinding oil, on whose performance every new product concept has to be measured.
- Microorganism susceptibility therefore use of partially harmful biocides Disposal costs - Lower lubricity than non-water-miscible KSS Possible water hazard (WGK 1 or higher) Possible skin irritation due to degreasing of the skin due to contained emulsifiers
- Microorganism susceptibility therefore use of partially harmful biocides Disposal costs Lower lubricity than non-water-miscible KSS and water-miscible emulsifying KSS - Possible water hazard (WGK 1 or higher)
- a disadvantage of the known cooling lubricant is - the expensive production, since in particular fruit juices are expensive to produce, the use of food-grade components in the manufacture and use, the lack of performance additives, especially wear reducers, the high stresses of the cooling lubricant during industrial processing processes allow only lack of corrosion and non-ferrous metal protection for workpieces and machine tool, poor filterability in the operating phase, with adhesions and precipitation and the lack of heat removal capacity in the described combination. It is known from DE 196 37 168 A1 a cooling lubricant consisting of glycerol, water, sugar, cornflour, gelatin, Tortenguss, plum juice, coffee, yeast, milk and wood spirit.
- a disadvantage of the known cooling lubricant is its expensive production, since in particular fruit juices are expensive to produce.
- the invention has for its object to overcome disadvantages in the prior art.
- the invention solves the problem by a metalworking machine tool lubricant having an alcohol content of more than 40% by weight of one or more polyhydric alcohols having at least three carbon atoms, and which is alkaline.
- the invention solves the problem by a machining process which uses a cooling lubricant having an alcohol content of more than 20% by mass, in particular more than 50% by mass, of one or more polyhydric alcohols having at least three carbon atoms. Atoms, and which is alkaline.
- An advantage of the invention is that the cooling lubricant can rely on inexpensive available glycerol and water (drinking water quality). By processing rapeseed oil into rapeseed oil methyl ester, large quantities of glycerol are produced. Glycerin is therefore available at low cost. Another advantage of the invention is that it is essentially non-toxic. This increases occupational safety and reduces disposal costs. The latter are also drastically reduced by the fact that the workpieces can easily be cleaned of cooling lubricant residues after processing, without resulting in emulsions containing mineral oil (currently 1 million t / a of oily washing liquids from industrial metal processing in Germany, disposal costs: approx.
- cooling lubricant without biocides, especially without fungicides and bactericides, gets along. It is advantageous that the cooling lubricant acts to inhibit corrosion, without relying on oil-containing components. The risk of fire and deflation of the inventive cooling lubricant is lower than for mineral oil-containing cooling lubricants.
- An advantage of the invention is that the cooling lubricant during internal grinding of 100Cr6 shows an unexpectedly high performance in the grinding process under industrial production conditions.
- grinding tests compared to conventional water-miscible and water-immiscible mineral oil-based cooling lubricants, a significantly lower normal force with constant tangential forces was found.
- increases in the time-spanning volume are realized by up to a factor of two. This can be achieved with a fluid, for example, of the composition given as Example 11.
- the alcohol content is understood to mean the amount in mass% which the polyhydric alcohols having at least three carbon atoms have on the cooling lubricant.
- the alcohol component consists predominantly of 1,2,3-propanetriol.
- This component prevents decomposition processes by microorganisms, without even being toxic to humans in low doses.
- the cooling lubricant has more than 40% by mass, in particular more than 80% by mass, of 1,2,3-propanetriol.
- the cooling lubricant preferably comprises at least 20% by mass of water. It has been found that a water content of at most 55% by mass is particularly advantageous. In the following, percentages, unless stated otherwise, are in% by mass.
- the cooling lubricant is particularly easy to dispose of and has low toxicity if it is substantially hydrophilic, in particular it is completely free of mineral oil.
- the cooling lubricant is hydrophilic, it is to be understood that the alcohol portion is completely dissolved in water or conversely that water is completely dissolved in the alcohol portion.
- the toxicity particularly advantageous properties result when substantially only substances with a molecular weight of less than 200 g / mol are contained. This also results in a cooling lubricant, in which a formation of deposits is substantially suppressed. With such a cooling lubricant, the risk of carbonization (charring) is also low.
- the cooling lubricant is carbohydrate-free and fruit juice-free, which prevents machined workpieces from sticking and attracting dust.
- the cooling lubricant is buffered to a pH of at least 7.5, in particular more than 8. Also advantageous is a pH of less than 10.
- disodium tetraborate decahydrate for example from 0.5 to 5% by mass
- tripotassium phosphate for example from 0.5 to 5% by mass
- dipotassium hydrogen peroxide for example from 0.5 to 5% by mass
- poshphat in particular from 0.5 to 5% by mass, and / or fatty acids or salts or derivatives thereof, for example from 0.5 to 5% by mass, are advantageous.
- the cooling lubricant preferably contains akanolamines for buffering, such as monoethanolamine, triethanolamine, 2- (2-aminoethoxy) ethanol (diglycolamide), 2-amino-2-methyl-1-propanol, 1-aminopropan-2-ol (isopropanolamine).
- akanolamines for buffering such as monoethanolamine, triethanolamine, 2- (2-aminoethoxy) ethanol (diglycolamide), 2-amino-2-methyl-1-propanol, 1-aminopropan-2-ol (isopropanolamine).
- alkali metal hydroxide such as sodium hydroxide or potassium hydroxide, is used to adjust the desired pH.
- Dicarboxylic acids for example sebacic acid and azelaic acid, and alkylarylsulfonylaminocarboxylic acids, medium-chain isoaliphatic and aliphatic monocarboxylic acids (C8-C10) and triazine tricarboxylic acids are used as anticorrosive components in each case for combination with the abovementioned alkanolamines or alkali metal hydroxides in a concentration of 0.1 to 10% by mass used in concentrations of 0.1 to 5% by mass.
- a non-ferrous metal deactivator for example 1 H-benzotriazole or derivatives of this substance.
- examples of such derivatives are 2,2 '- [[(5-methyl-1H-benzotriazol-1-yl) -methyl] imino] bis-ethanol and 2,2' - [[(4-methyl-1H- benzotriazol-1-yl) methyl] imino] bisethanol in concentrations of 0.05 to 1% by mass.
- wear reducers such as salts of dialkyldithiophosphoric acids, for example dibutyldithiophosphoric acid, contain from 0.1 to 5% by mass of phosphate salts, sulfurized fatty acids, sulfurized fatty acid esters, fatty acid esters, ethoxylated phosphoric acid esters and polyalkylene glycols in the concentration range from 0.1 to 5 mass -% to increase the performance of the cooling lubricant.
- the cooling lubricant preferably also comprises a corrosion inhibitor, for example triethanolamine, where the concentration can range from 0.5 to 10% by mass.
- a corrosion inhibitor for example triethanolamine
- the present invention also relates to a machine tool, for example a cutting machine tool, comprising a cooling lubricant described above. This coolant can for example also be diluted with water.
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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)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lubricants (AREA)
Abstract
L'invention concerne un réfrigérant lubrifiant pour des machines-outils. Selon l'invention, ce réfrigérant lubrifiant présente une proportion supérieure à 40 % en masse d'un ou de plusieurs alcools polyvalents ayant au moins trois atomes de C et est alcalin.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08801267A EP2185671A2 (fr) | 2007-08-30 | 2008-08-29 | Réfrigérant lubrifiant |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007041372.8 | 2007-08-30 | ||
DE102007041372A DE102007041372A1 (de) | 2007-08-30 | 2007-08-30 | Kühlschmierstoff |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2009026916A2 true WO2009026916A2 (fr) | 2009-03-05 |
WO2009026916A3 WO2009026916A3 (fr) | 2009-06-18 |
Family
ID=40299019
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2008/001460 WO2009026916A2 (fr) | 2007-08-30 | 2008-08-29 | Réfrigérant lubrifiant |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2185671A2 (fr) |
DE (1) | DE102007041372A1 (fr) |
WO (1) | WO2009026916A2 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016215545B3 (de) * | 2016-08-18 | 2018-02-08 | Jan C. Aurich | Verfahren zum Betrieb einer spanenden Werkzeugmaschine und Werkzeugmaschine für die spanende Bearbeitung von Werkstücken |
DE102018101190A1 (de) * | 2018-01-19 | 2019-07-25 | Mas Gmbh | Verfahren zum spanenden Bearbeiten und Werkzeugmaschine |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62190297A (ja) * | 1986-02-17 | 1987-08-20 | Johnson Kk | 水溶性潤滑油剤 |
WO1992001029A1 (fr) * | 1990-07-03 | 1992-01-23 | Quaker Chemical Corporation | Agent de refroidissement aqueux |
JPH0673392A (ja) * | 1988-10-20 | 1994-03-15 | Daido Kagaku Kogyo Kk | 水溶性切削、研削用組成物 |
JPH0762381A (ja) * | 1993-08-30 | 1995-03-07 | Sumitomo Metal Ind Ltd | 冷間圧延油 |
DE19637168A1 (de) * | 1996-09-12 | 1998-03-19 | Egbert Pflueger | Kühl- und Schmiermittel |
EP1010740A1 (fr) * | 1998-12-16 | 2000-06-21 | Setuza a.s. | Liquide de refroidissement concentré et dilué |
US6277793B1 (en) * | 1999-01-22 | 2001-08-21 | Popelar Filter Co., Inc. | Liquid clarifier additive for machine tool coolants |
-
2007
- 2007-08-30 DE DE102007041372A patent/DE102007041372A1/de not_active Ceased
-
2008
- 2008-08-29 EP EP08801267A patent/EP2185671A2/fr not_active Withdrawn
- 2008-08-29 WO PCT/DE2008/001460 patent/WO2009026916A2/fr active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62190297A (ja) * | 1986-02-17 | 1987-08-20 | Johnson Kk | 水溶性潤滑油剤 |
JPH0673392A (ja) * | 1988-10-20 | 1994-03-15 | Daido Kagaku Kogyo Kk | 水溶性切削、研削用組成物 |
WO1992001029A1 (fr) * | 1990-07-03 | 1992-01-23 | Quaker Chemical Corporation | Agent de refroidissement aqueux |
JPH0762381A (ja) * | 1993-08-30 | 1995-03-07 | Sumitomo Metal Ind Ltd | 冷間圧延油 |
DE19637168A1 (de) * | 1996-09-12 | 1998-03-19 | Egbert Pflueger | Kühl- und Schmiermittel |
EP1010740A1 (fr) * | 1998-12-16 | 2000-06-21 | Setuza a.s. | Liquide de refroidissement concentré et dilué |
US6277793B1 (en) * | 1999-01-22 | 2001-08-21 | Popelar Filter Co., Inc. | Liquid clarifier additive for machine tool coolants |
Also Published As
Publication number | Publication date |
---|---|
WO2009026916A3 (fr) | 2009-06-18 |
EP2185671A2 (fr) | 2010-05-19 |
DE102007041372A1 (de) | 2009-03-05 |
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