EP1123962A1 - Neat cutting oil composition - Google Patents
Neat cutting oil composition Download PDFInfo
- Publication number
- EP1123962A1 EP1123962A1 EP00400345A EP00400345A EP1123962A1 EP 1123962 A1 EP1123962 A1 EP 1123962A1 EP 00400345 A EP00400345 A EP 00400345A EP 00400345 A EP00400345 A EP 00400345A EP 1123962 A1 EP1123962 A1 EP 1123962A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cutting oil
- oil composition
- neat
- neat cutting
- composition according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
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
- C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
- C10M101/02—Petroleum fractions
-
- 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
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen 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
- C10M2207/28—Esters
- C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
-
- 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
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/10—Phosphatides, e.g. lecithin, cephalin
-
- 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
- C10N2020/017—Specific gravity or density
-
- 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
- C10N2020/02—Viscosity; Viscosity index
-
- 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
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/02—Pour-point; Viscosity index
-
- 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
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
-
- 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
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/20—Colour, e.g. dyes
-
- 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
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/30—Anti-misting
-
- 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
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/40—Low content or no content compositions
- C10N2030/42—Phosphor free or low phosphor content compositions
-
- 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
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/40—Low content or no content compositions
- C10N2030/43—Sulfur free or low sulfur content compositions
-
- 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
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/74—Noack Volatility
-
- 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
- C10N2040/22—Metal working with essential removal of material, e.g. cutting, grinding or drilling
-
- 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
-
- 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
- C10N2070/00—Specific manufacturing methods for lubricant compositions
Definitions
- the present invention relates to a neat cutting oil composition and to a process for working metals and metal alloys.
- Cutting fluids have been used for a long time to perform generally the following functions :
- Neat cutting fluids are usually preferred when excellent lubrication, good rust protection and surface finish are required.
- the invention thus provides a neat cutting oil composition which, besides exhibiting low misting and evaporation tendencies, has satisfactory cooling properties.
- the invention provides a neat cutting oil composition comprising, based on the total weight of the composition, from 10 to 99%, preferably from 70 to 99% of a white mineral oil.
- the invention further provides a process for preparing the neat cutting oil composition.
- the invention also provides a process for machining metals, comprising applying an effective amount of the neat cutting oil composition of the invention to the metal being machined.
- the invention provides the use of the neat cutting oil composition of the invention in a metal machining operation.
- white mineral oil it is herein intended very highly refined oils which consist entirely of saturated components, all aromatics having generally been removed by treatment with fuming sulphuric acid or by selective hydrogenation. Their name reflects the fact that they are virtually colourless and the most highly refined medicinal white oils are used in medical products and in the food industry.
- the white mineral oils used in the invention are preferably those which can be safely used as a component of nonfood articles intended for use in contact with food. These oils are described in 21 CFR Ch. 1 ⁇ 178.3620 (a) and (b) of the Food and Drug Administration, HHS.
- White oils are for example sold by the company SIP Limited of LONDON.
- the white mineral oils typically have a viscosity from 3 to 500, preferably from 4 to 30 cSt at 40°C.
- the cutting oil composition of the invention comprises a combination of a fatty acid ester with a phosphoric acid ester. This combination provides in flute grinding operations :
- a fatty acid ester is a fatty acid ester based on triglycerides and containing approximately 10 wt % sulfur including less than 1 wt % active sulfur.
- the phosphoric acid ester is preferably amine neutralized and contains approximately 95 wt % phosphorus and 3.8 wt % nitrogen.
- the cutting oil composition of the invention comprises a combination of oleic acid and tri-octyl phosphate. This combination provides in ball bearing grinding an excellent surface finish and extended wheel life.
- the cutting oil composition of the invention comprises a combination of sulfurized sunflower oil, tri-octyl phosphate and oleic acid. This combination provides an extremely fine finish in the honing of steel bore holes and shafts.
- the neat cutting oil composition of the invention may comprise conventional additives, such as lubricity agents, antioxidants, extreme-pressure and anti-wear agents, anti-mist agents.
- lubricity agents are long chain polar molecules, like fats, fatty acids, vegetable oils and esters.
- extreme-pressure and anti-wear agents are sulphur and sulphur organic compounds, phosphorus organic compounds, or chlorine organic compounds.
- Examples of phosphorus organic compounds include dilauryl phosphate, didodecyl phosphite, trialkylphosphate such as tri(2-ethylhexyl)phosphate, tricresylphosphate (TCP), zinc dialkyl(or diaryl)dithiophosphates (ZDDP), phospho-sulphurized fatty oils, tricresylphosphate (TCP), trixylylphosphate (TXP), dilauryl phosphate, amine phosphates, phosphoric acid esters.
- trialkylphosphate such as tri(2-ethylhexyl)phosphate
- tricresylphosphate (TCP) zinc dialkyl(or diaryl)dithiophosphates
- ZDDP zinc dialkyl(or diaryl)dithiophosphates
- phospho-sulphurized fatty oils tricresylphosphate (TCP)
- TXP trixylylphosphate
- sulphur phosphorus organic compounds include mercaptobenzothiazole, sulphurized fatty oils, sulphurized terpenes, sulphurized oleic acid, alkyl and aryl polysulphides, sulphurized sperm oil, sulphurized mineral oil, sulphur chloride treated fatty oils.
- chlorine organic compounds include chlornaphta xanthate, cetyl chloride, chlorinated paraffinic oils, chlorinated paraffin wax sulphides, chlorinated paraffin wax, and zinc dialkyl(or diaryl)dithiophosphates (ZDDP).
- anti-oxidants are metals deactivators like triazole derivatives, chain breakers like phenols, cresols derivatives, peroxyde decomposers like zinc dithiophosphates, metal dithio carbamates.
- the neat cutting oil composition of the invention is prepared by blending the base oil and the other ingredients, preferably under stirring or with any mixing device and whilst controlling the temperature so that it does not exceed 70°C, and more preferably, 50°C.
- the neat cutting oil composition of the invention can be used in various machining operations like internal, surface or external broaching, tapping, threading, honing, gear cutting, gear shaving, gear hobbing, gear generating, reaming, automatic works, milling, form turning, planing, parting off, drilling, boring, sawing or superfinishing.
- the neat cutting oil of the invention is particularly adapted in machining operations like honing, superfinishing, bearing grinding, gear grinding or flute grinding.
- a great number of metals can be machined with the oil composition of the invention.
- metals include titanium alloys, nickel alloys like Nimonics TM, stainless steel like inconel, tool steel, high alloy steel, high carbon steel, mild steel, wrought iron, silicon aluminium alloys, cast iron, copper, copper alloys, bronze, brass, aluminium and aluminium alloys.
- Compositions 1 to 3 are prepared by mixing the ingredients of Table 1 in the order in which they appear in this table. The temperature is maintained at a maximum of 50°C to ensure a complete dissolution and homogeneisation of the ingredients without impairing the properties of the cutting oil.
- composition number and content Ingredients 1 2 3
- White oil with a viscosity of 24 cSt at 40°C 84.80 2-ethyl-hexyl adipate 5.00 2-ethyl-hexyl cocoate 3.00 10.00 Oleic acid (lubricity agent) 5.00 3.00 4.00 Lecithin (lubricity agent) 2.50
- Tri-octyl phosphate Extreme pressure agent
- Fatty acid ester (1) Extreme-pressure agent
- Fatty acid ester (2) Extreme-pressure agent
- compositions of Table 1 are set out in Table 2.
- Composition numbers and typical characteristics 1 2 3 Kinematic viscosity at 40°C cSt ASTM D 445 5.2 10.2 21.5 Kinematic viscosity at 100°C cSt ASTM D 445 - 2.9 4.5 Copper corrosion 3h, 100°C ASTM D130 1A 1A 1A Phosphorus wt % ASTM D4951 0.17 0.18 0.08 Colour ASTM D 1500 1 1 1.5 Density at 15°C G/cm 3 ASTM D 4052 834.8 839.9 850.1 Total acid number mg KOH/g ASTM D 664 ⁇ 0.03 ⁇ 0.03 ⁇ 0.03 Sulphur wt % DIN 51400 0.31 0.32 0.22
- a cutting neat oil of the prior art having the composition set out in Table 3 is selected : Ingredients Content (wt%) Paraffinic base oil viscosity 150 Saybold Universal Second at 100°F 96.5 Oleic acid (lubricity agent) 3.5
- a Noack volatility test (CEC L40-A93) at 200° as a function of the kinematic viscosity is carried out with the neat cutting oil composition of Table 1 and with the neat oil of Table 3.
- the Renault mist test D65/1649 is carried out with the neat cutting oil composition of Table 1 and with the neat oil of Table 3.
- a resistance to shearing test according to the CEC L-14-A-78 method as a function of the number of cycles is carried out with the neat cutting oil composition of Table 1 and with the neat oil of Table 3.
- the method used to measure the mist consists in using an optical instrument (Data-Ram®) fitted on the exhaust pipe of a Traub TNS 42 CNC machine.
- the Data-Ram® is a high sensitivity light scattering photometer and the intensity of the light scattered over the forward angle of 45 to 95 degrees by airborne particles passing through the sensing chamber is linearly proportional to the concentration.
Abstract
The present invention relates to a neat cutting oil
composition comprising, based on the total weight of the
composition, from 10 to 99% of a white mineral oil.
The invention also relates to a process for machining
metals and to the use of the neat cutting oil composition in
metal machining operations like honing, superfinishing, bearing
grinding, gear grinding or flute grinding.
Description
- The present invention relates to a neat cutting oil composition and to a process for working metals and metal alloys.
- Cutting fluids have been used for a long time to perform generally the following functions :
- lubricate the chip/tool and tool/workpiece contacts,
- reduce friction (decrease cutting forces and torques);
- extend tool life;
- improve surface finish;
- cool the workpiece and the tool, in order to :
- dissipate heat in the cutting zone;
- protect the metal tool and workpiece;
- improve dimensional accuracy;
- protect the workpiece, tool and machine,
- flush and remove metal chips;
- prevent chip/tool welding; and
- control the Built Up Edge (BUE).
- There are two main types of cutting fluids : neat cutting fluids and water-miscible cutting fluids.
- Neat cutting fluids are usually preferred when excellent lubrication, good rust protection and surface finish are required.
- However, they tend to evaporate and generate oil mists.
- There is a therefore a need to reduce evaporation and oil mist generation in neat cutting fluids, in order to improve working conditions and provide a safer working environment. However, reducing evaporation usually means increasing viscosity, which reduces the cooling efficiency.
- There is no teaching or suggestion in the prior art as to how a neat cutting fluid satisfying the above need can be produced without impairing its cooling efficiency.
- The invention thus provides a neat cutting oil composition which, besides exhibiting low misting and evaporation tendencies, has satisfactory cooling properties.
- Specifically, the invention provides a neat cutting oil composition comprising, based on the total weight of the composition, from 10 to 99%, preferably from 70 to 99% of a white mineral oil.
- The invention further provides a process for preparing the neat cutting oil composition.
- The invention also provides a process for machining metals, comprising applying an effective amount of the neat cutting oil composition of the invention to the metal being machined.
- Finally, the invention provides the use of the neat cutting oil composition of the invention in a metal machining operation.
- The invention is now disclosed in more details in the following specification and in reference to the drawings in which :
- Figure 1 is a graph showing the Noack volatility at 200°C as a function of the kinematic viscosity, when using the neat cutting oil of the invention and a neat oil of the prior art;
- Figure 2 is a graph showing the mist generation as a function of the kinematic viscosity, when using the neat cutting oil of the invention and a neat oil of the prior art;
- Figure 3 is a graph showing the kinematic viscosity under shearing as a function of the number of cycles, when using the neat cutting oil of the invention and a neat oil of the prior art; and
- Figure 4 is a graph showing the mist percentage of the neat cutting oil of the invention and of a neat oil of the prior art.
-
- By "white mineral oil", it is herein intended very highly refined oils which consist entirely of saturated components, all aromatics having generally been removed by treatment with fuming sulphuric acid or by selective hydrogenation. Their name reflects the fact that they are virtually colourless and the most highly refined medicinal white oils are used in medical products and in the food industry.
- The white mineral oils used in the invention are preferably those which can be safely used as a component of nonfood articles intended for use in contact with food. These oils are described in 21 CFR Ch. 1 §178.3620 (a) and (b) of the Food and Drug Administration, HHS.
- White oils are for example sold by the company SIP Limited of LONDON.
- The white mineral oils typically have a viscosity from 3 to 500, preferably from 4 to 30 cSt at 40°C.
- According to one embodiment, the cutting oil composition of the invention comprises a combination of a fatty acid ester with a phosphoric acid ester. This combination provides in flute grinding operations :
- 1) a reduced wheel rehardening (twist drills and taps production);
- 2) a reduction in drill structural damages ; and
- 3) less discoloratin on drill run-out.
-
- An example of such a fatty acid ester is a fatty acid ester based on triglycerides and containing approximately 10 wt % sulfur including less than 1 wt % active sulfur. The phosphoric acid ester is preferably amine neutralized and contains approximately 95 wt % phosphorus and 3.8 wt % nitrogen.
- According to a further embodiment, the cutting oil composition of the invention comprises a combination of oleic acid and tri-octyl phosphate. This combination provides in ball bearing grinding an excellent surface finish and extended wheel life.
- According to yet a further embodiment, the cutting oil composition of the invention comprises a combination of sulfurized sunflower oil, tri-octyl phosphate and oleic acid. This combination provides an extremely fine finish in the honing of steel bore holes and shafts.
- The neat cutting oil composition of the invention may comprise conventional additives, such as lubricity agents, antioxidants, extreme-pressure and anti-wear agents, anti-mist agents.
- Examples of lubricity agents are long chain polar molecules, like fats, fatty acids, vegetable oils and esters.
- Examples of extreme-pressure and anti-wear agents are sulphur and sulphur organic compounds, phosphorus organic compounds, or chlorine organic compounds.
- Examples of phosphorus organic compounds include dilauryl phosphate, didodecyl phosphite, trialkylphosphate such as tri(2-ethylhexyl)phosphate, tricresylphosphate (TCP), zinc dialkyl(or diaryl)dithiophosphates (ZDDP), phospho-sulphurized fatty oils, tricresylphosphate (TCP), trixylylphosphate (TXP), dilauryl phosphate, amine phosphates, phosphoric acid esters.
- Examples of sulphur phosphorus organic compounds include mercaptobenzothiazole, sulphurized fatty oils, sulphurized terpenes, sulphurized oleic acid, alkyl and aryl polysulphides, sulphurized sperm oil, sulphurized mineral oil, sulphur chloride treated fatty oils.
- Examples of chlorine organic compounds include chlornaphta xanthate, cetyl chloride, chlorinated paraffinic oils, chlorinated paraffin wax sulphides, chlorinated paraffin wax, and zinc dialkyl(or diaryl)dithiophosphates (ZDDP).
- Examples of anti-oxidants are metals deactivators like triazole derivatives, chain breakers like phenols, cresols derivatives, peroxyde decomposers like zinc dithiophosphates, metal dithio carbamates.
- Further elements on base oils and additives can be found in "Chemistry And Technology Of Lubricants", R.M. Mortier and S.T. Orszulik, VCH Publishers, Inc, First published in 1992.
- The neat cutting oil composition of the invention is prepared by blending the base oil and the other ingredients, preferably under stirring or with any mixing device and whilst controlling the temperature so that it does not exceed 70°C, and more preferably, 50°C.
- The neat cutting oil composition of the invention can be used in various machining operations like internal, surface or external broaching, tapping, threading, honing, gear cutting, gear shaving, gear hobbing, gear generating, reaming, automatic works, milling, form turning, planing, parting off, drilling, boring, sawing or superfinishing.
- The neat cutting oil of the invention is particularly adapted in machining operations like honing, superfinishing, bearing grinding, gear grinding or flute grinding.
- A great number of metals can be machined with the oil composition of the invention. Examples include titanium alloys, nickel alloys like Nimonics ™, stainless steel like inconel, tool steel, high alloy steel, high carbon steel, mild steel, wrought iron, silicon aluminium alloys, cast iron, copper, copper alloys, bronze, brass, aluminium and aluminium alloys.
- The following examples illustrate the invention without limiting it. All parts and ratios are given by weight, unless otherwise noted.
- Compositions 1 to 3 are prepared by mixing the ingredients of Table 1 in the order in which they appear in this table. The temperature is maintained at a maximum of 50°C to ensure a complete dissolution and homogeneisation of the ingredients without impairing the properties of the cutting oil.
Composition number and content (wt%) Ingredients 1 2 3 White oil with a viscosity of 4 cSt at 40°C 86.60 White oil with a viscosity of 9 cSt at 40°C 81.40 White oil with a viscosity of 24 cSt at 40°C 84.80 2-ethyl-hexyl adipate 5.00 2-ethyl-hexyl cocoate 3.00 10.00 Oleic acid (lubricity agent) 5.00 3.00 4.00 Lecithin (lubricity agent) 2.50 Polyisobutylene (anti-mist agent) 0.50 0.50 0.50 DBPC (anti-oxydant) 0.10 0.10 0.20 Tri-octyl phosphate (extreme pressure agent) 1.80 2.00 Fatty acid ester (1) (extreme-pressure agent) 2.50 Fatty acid ester (2) (extreme-pressure agent) 0.50 Sulfurized sunflower oil (anti-wear) 3.00 3.00 - (1) : fatty acid ester based on triglycerides containing approximately 10% sulfur including less than 1% active sulfur
- (2) : phosphoric acid ester, amine neutralized containing approximately 95% phosphorus and 3.8% nitrogen
-
- The characteristics of the composition of Table 1 are set out in Table 2.
Composition numbers and typical characteristics 1 2 3 Kinematic viscosity at 40°C cSt ASTM D 445 5.2 10.2 21.5 Kinematic viscosity at 100°C cSt ASTM D 445 - 2.9 4.5 Copper corrosion 3h, 100°C ASTM D130 1A 1A 1A Phosphorus wt % ASTM D4951 0.17 0.18 0.08 Colour ASTM D 1500 1 1 1.5 Density at 15°C G/cm3 ASTM D 4052 834.8 839.9 850.1 Total acid number mg KOH/g ASTM D 664 <0.03 <0.03 <0.03 Sulphur wt % DIN 51400 0.31 0.32 0.22 - A cutting neat oil of the prior art having the composition set out in Table 3 is selected :
Ingredients Content (wt%) Paraffinic base oil viscosity 150 Saybold Universal Second at 100°F 96.5 Oleic acid (lubricity agent) 3.5 - A Noack volatility test (CEC L40-A93) at 200° as a function of the kinematic viscosity is carried out with the neat cutting oil composition of Table 1 and with the neat oil of Table 3.
- The results are shown on Figure 1. It can be seen that the neat cutting oil composition of the invention is less volatile than the neat oil of the prior art.
- The Renault mist test D65/1649 is carried out with the neat cutting oil composition of Table 1 and with the neat oil of Table 3.
- The results are shown on Figure 2. It can be seen that the neat cutting oil composition of the invention generates much less mist than does the neat oil of the prior art.
- A resistance to shearing test according to the CEC L-14-A-78 method as a function of the number of cycles is carried out with the neat cutting oil composition of Table 1 and with the neat oil of Table 3.
- The results are shown on Figure 3. It can be seen that the kinematic viscosity of the oil composition of the invention varies less than that of the neat oil of the prior art, whatever the number of cycles.
- The mist generated by the neat cutting oil composition of Table 1 is compared to that generated by the neat oil of Table 3.
- The method used to measure the mist consists in using an optical instrument (Data-Ram®) fitted on the exhaust pipe of a Traub TNS 42 CNC machine. The Data-Ram® is a high sensitivity light scattering photometer and the intensity of the light scattered over the forward angle of 45 to 95 degrees by airborne particles passing through the sensing chamber is linearly proportional to the concentration.
- The results are shown on Figure 4. Again, it can be seen that the neat cutting oil composition of the invention generates much less mist than does the neat oil of the prior art.
Claims (10)
- Neat cutting oil composition comprising, based on the total weight of the composition, from 10 to 99% of a white mineral oil.
- Neat cutting oil composition according to claim 1, comprising, based on the total weight of the composition, from 70 to 99% of said white oil.
- Neat cutting oil composition according to claim 1 or 2, further comprising a combination of a fatty acid ester with a phosphoric acid ester.
- Neat cutting oil composition according to any one of claims 1 to 3, in which the white mineral oil has a viscosity comprised between 3 and 500, preferably between 4 and 30 cSt at 40°C.
- Neat cutting oil composition according to any one of claims 1 to 4, further comprising at least one ingredient selected from the group consisting of lubricity agents, antioxidants, extreme-pressure and anti-wear agents and anti-mist agents.
- Process for the preparation of a neat cutting oil composition according to any one of claims 1 to 5, comprising blending the white mineral oil and the other ingredients under stirring or with any mixing device.
- Process according to claim 6, wherein the blending is carried out at a temperature which does not exceed 50°C, preferably 40°C.
- Process for machining metals, comprising applying an effective amount of the neat cutting oil composition according to any one of claims 1 or 5 to the metal.
- Use of the neat cutting oil composition according to any one of claims 1 to 5 in a metal machining operation.
- Use according to claim 9, wherein the machining operation is honing, superfinishing, bearing grinding, gear grinding or flute grinding.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00400345A EP1123962A1 (en) | 2000-02-08 | 2000-02-08 | Neat cutting oil composition |
PCT/EP2001/001377 WO2001059036A2 (en) | 2000-02-08 | 2001-02-07 | Neat cutting oil composition |
AU37370/01A AU3737001A (en) | 2000-02-08 | 2001-02-07 | Neat cutting oil composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00400345A EP1123962A1 (en) | 2000-02-08 | 2000-02-08 | Neat cutting oil composition |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1123962A1 true EP1123962A1 (en) | 2001-08-16 |
Family
ID=8173541
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00400345A Withdrawn EP1123962A1 (en) | 2000-02-08 | 2000-02-08 | Neat cutting oil composition |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1123962A1 (en) |
AU (1) | AU3737001A (en) |
WO (1) | WO2001059036A2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102766510A (en) * | 2012-08-16 | 2012-11-07 | 温州宝罗润滑材料有限公司 | Super-high extreme pressure type micro-emulsification cutting fluid and preparation method thereof |
CN106433938A (en) * | 2016-09-22 | 2017-02-22 | 东莞市垠星科技发展有限公司 | Environment-friendly high-performance engine cylinder honing solution |
CN109054941A (en) * | 2018-07-10 | 2018-12-21 | 广州市奥赛钢线科技有限公司 | A kind of quench is tempered anti-rust and lubrication fluid composition of spring steel wire and preparation method thereof |
US10421920B1 (en) * | 2016-04-13 | 2019-09-24 | Safe Harbour Products, Inc. | Biodegradable, non-toxic lubricant composition processes of making it and methods for its use |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109810766A (en) * | 2019-03-07 | 2019-05-28 | 山东小松油品有限公司 | A kind of preparation method of high-performance low viscosity honing oil |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB762775A (en) * | 1953-11-17 | 1956-12-05 | Distillers Co Yeast Ltd | Coolant for cutting tools |
GB1338505A (en) * | 1970-08-07 | 1973-11-28 | Witco Chemical Corp | Lubricants |
US4822507A (en) * | 1984-12-14 | 1989-04-18 | Idemitsu Kosan Company Limited | Lubricating oil composition serving as sliding surface oil and metal working oil, and method of lubricating working machinery using said oil composition |
EP0315873A1 (en) * | 1987-11-07 | 1989-05-17 | Idemitsu Kosan Company Limited | Method for working metal |
EP0694603A1 (en) * | 1994-06-24 | 1996-01-31 | Witco Corporation | Lubricating oil having lubrication condition responsive activity |
-
2000
- 2000-02-08 EP EP00400345A patent/EP1123962A1/en not_active Withdrawn
-
2001
- 2001-02-07 AU AU37370/01A patent/AU3737001A/en not_active Withdrawn
- 2001-02-07 WO PCT/EP2001/001377 patent/WO2001059036A2/en not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB762775A (en) * | 1953-11-17 | 1956-12-05 | Distillers Co Yeast Ltd | Coolant for cutting tools |
GB1338505A (en) * | 1970-08-07 | 1973-11-28 | Witco Chemical Corp | Lubricants |
US4822507A (en) * | 1984-12-14 | 1989-04-18 | Idemitsu Kosan Company Limited | Lubricating oil composition serving as sliding surface oil and metal working oil, and method of lubricating working machinery using said oil composition |
EP0315873A1 (en) * | 1987-11-07 | 1989-05-17 | Idemitsu Kosan Company Limited | Method for working metal |
EP0694603A1 (en) * | 1994-06-24 | 1996-01-31 | Witco Corporation | Lubricating oil having lubrication condition responsive activity |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102766510A (en) * | 2012-08-16 | 2012-11-07 | 温州宝罗润滑材料有限公司 | Super-high extreme pressure type micro-emulsification cutting fluid and preparation method thereof |
CN102766510B (en) * | 2012-08-16 | 2013-12-25 | 温州宝罗润滑材料有限公司 | Super-high extreme pressure type micro-emulsification cutting fluid and preparation method thereof |
US10421920B1 (en) * | 2016-04-13 | 2019-09-24 | Safe Harbour Products, Inc. | Biodegradable, non-toxic lubricant composition processes of making it and methods for its use |
CN106433938A (en) * | 2016-09-22 | 2017-02-22 | 东莞市垠星科技发展有限公司 | Environment-friendly high-performance engine cylinder honing solution |
CN106433938B (en) * | 2016-09-22 | 2019-05-21 | 东莞市垠星科技发展有限公司 | A kind of environmental-friendly high-performance enginer cylinder body grinding fluid |
CN109054941A (en) * | 2018-07-10 | 2018-12-21 | 广州市奥赛钢线科技有限公司 | A kind of quench is tempered anti-rust and lubrication fluid composition of spring steel wire and preparation method thereof |
CN109054941B (en) * | 2018-07-10 | 2021-06-22 | 广州市奥赛钢线科技有限公司 | Antirust lubricating oil composition for quenched and tempered spring steel wire and preparation method thereof |
Also Published As
Publication number | Publication date |
---|---|
AU3737001A (en) | 2001-08-20 |
WO2001059036A2 (en) | 2001-08-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7683016B2 (en) | Soy-based methyl ester high performance metal working fluids | |
US7645727B2 (en) | Gear cutting oil | |
JP3816949B2 (en) | Cutting or grinding oil composition | |
WO2011121608A2 (en) | A broaching oil or heavy duty neat cutting oil composition | |
JP6997702B2 (en) | Metalworking oil composition | |
JP2002511109A (en) | High performance metalworking oil | |
CA2189667A1 (en) | Metal working oil composition and metal working method | |
EP1123962A1 (en) | Neat cutting oil composition | |
US7439212B2 (en) | Soybean oil based metalworking fluids | |
WO2009119669A1 (en) | Lubricating oil composition for rolling with round die | |
WO2018216569A1 (en) | Grease composition and precision speed reducer | |
EP1123964A1 (en) | Neat cutting oil composition | |
US6103675A (en) | Phosphoric esters as extreme pressure additives | |
JP3469546B2 (en) | Cutting oil composition for gear cutting and gear cutting method using the cutting oil composition for gear cutting | |
US20030176299A1 (en) | Multipurpose lubricant based on phosphorous and sulphur compounds | |
JPH02281097A (en) | Lubricant oil for cutting and grinding | |
JPS6284192A (en) | Lubricant for cold working of metal | |
JP2022149800A (en) | Lubricating oil composition for machine tool and metallic working | |
RU2404232C2 (en) | Tribotechnical additive | |
EP1123963A1 (en) | Non-staining lubricating composition | |
WO2011111063A9 (en) | High performance multipurpose oil composition for hydraulic cum cutting applications | |
RO118447B1 (en) | Multipurpose additive composition for hard duty conditions | |
CZ321499A3 (en) | Esters of phosphoric acid as high-pressure additives | |
CN106520326A (en) | Lubricant composition of zinc alloy cutting processing technology | |
JPH03115398A (en) | Water-soluble lubricant for plastic working |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): FR |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
AKX | Designation fees paid |
Free format text: FR |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: 8566 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20020219 |