EP4296339A1 - Metallbearbeitungsflüssigkeitskonzentrat - Google Patents

Metallbearbeitungsflüssigkeitskonzentrat Download PDF

Info

Publication number
EP4296339A1
EP4296339A1 EP23178960.3A EP23178960A EP4296339A1 EP 4296339 A1 EP4296339 A1 EP 4296339A1 EP 23178960 A EP23178960 A EP 23178960A EP 4296339 A1 EP4296339 A1 EP 4296339A1
Authority
EP
European Patent Office
Prior art keywords
metalworking fluid
water
fluid concentrate
ethylene oxide
additives
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.)
Pending
Application number
EP23178960.3A
Other languages
English (en)
French (fr)
Inventor
Christopher Nettleship
Samuel ADAMSON
Lily SMITH
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.)
Metalube Ltd
Original Assignee
Metalube Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Metalube Ltd filed Critical Metalube Ltd
Publication of EP4296339A1 publication Critical patent/EP4296339A1/de
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M173/00Lubricating compositions containing more than 10% water
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M173/00Lubricating compositions containing more than 10% water
    • C10M173/02Lubricating compositions containing more than 10% water not containing mineral or fatty oils
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/02Water
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02Hydroxy compounds
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02Hydroxy compounds
    • C10M2207/021Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/04Ethers; Acetals; Ortho-esters; Ortho-carbonates
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10Carboxylix acids; Neutral salts thereof
    • C10M2207/12Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/121Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
    • C10M2207/123Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms polycarboxylic
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28Esters
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28Esters
    • C10M2207/281Esters of (cyclo)aliphatic monocarboxylic acids
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/104Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/107Polyethers, i.e. containing di- or higher polyoxyalkylene groups of two or more specified different alkylene oxides covered by groups C10M2209/104 - C10M2209/106
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/108Polyethers, i.e. containing di- or higher polyoxyalkylene groups etherified
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/02Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/04Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2215/042Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Alkoxylated derivatives thereof
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/22Heterocyclic nitrogen compounds
    • C10M2215/223Five-membered rings containing nitrogen and carbon only
    • C10M2215/224Imidazoles
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2223/00Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04Phosphate esters
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2229/00Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
    • C10M2229/04Siloxanes with specific structure
    • C10M2229/047Siloxanes with specific structure containing alkylene oxide groups
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2020/00Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01Physico-chemical properties
    • C10N2020/011Cloud point
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/06Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/12Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/24Emulsion properties
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00Specified use or application for which the lubricating composition is intended
    • C10N2040/20Metal working
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00Specified use or application for which the lubricating composition is intended
    • C10N2040/20Metal working
    • C10N2040/22Metal working with essential removal of material, e.g. cutting, grinding or drilling
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00Specified use or application for which the lubricating composition is intended
    • C10N2040/20Metal working
    • C10N2040/24Metal working without essential removal of material, e.g. forming, gorging, drawing, pressing, stamping, rolling or extruding; Punching metal
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2050/00Form in which the lubricant is applied to the material being lubricated
    • C10N2050/01Emulsions, colloids, or micelles
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2050/00Form in which the lubricant is applied to the material being lubricated
    • C10N2050/01Emulsions, colloids, or micelles
    • C10N2050/011Oil-in-water

Definitions

  • the present invention relates to a metalworking fluid, and more particularly a metalworking fluid comprising a blend of synthetic (water-based) and semi-synthetic (oil-based) components.
  • Metalworking fluids have many applications within industry, such as destructive metalworking (chips of metal are produced, such as in milling or grinding) and deformation metalworking (chips of metal are not produced, such as in rolling), as well as more specific applications such as wire drawing.
  • the metalworking fluids are used to cool and lubricate during metalworking operations.
  • Such fluids typically comprise an oil-based (oleaginous) component, an aqueous component and emulsifier.
  • the products are typically supplied as concentrates which are diluted with water by the user. In use the continuous water phase provides cooling, whilst the oil droplets plate out on metal surfaces to form a lubricating film between the metal being worked and the tool.
  • emulsifiers to create an emulsion.
  • Surfactants are typically used as emulsifiers, with sufficient surfactant included to ensure that the emulsion forms completely.
  • metalworking fluids were soluble oils, typically comprising a majority of mineral oil together with other components such as emulsifiers, corrosion inhibitors and other additives.
  • the oil was mixed with water to form an emulsion.
  • additives such as sodium emulsifiers, sodium EDTA, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfite, sodium metabisulfit
  • metalworking fluid is known as a "fully synthetic" fluid, all components of which are soluble in water.
  • the lubrication is provided by compounds whose solubility in water is inversely proportional to temperature, such that at room temperature they are soluble in water, whereas as the temperatures typically encountered at the metalworking surface due to friction (80°C or more) they plate out to form a lubricating film on the metal surface.
  • examples of such compounds are polyelkylene glycols (PAGs), which are copolymers of ethylene oxide and propylene oxide.
  • the present invention provides a metalworking fluid concentrate comprising
  • composition of the invention provides excellent lubrication in a wide range of applications including wire drawing, gives low deposits during use and also has excellent long-term stability.
  • water-soluble means that no more than 0.5wt% of a compound is left undissolved in the aqueous phase when the compound is either dissolved in water or reacts in water to form a salt which itself dissolves.
  • Component (A) is a blend of a C 8 -C 30 alcohol with a fatty acid ester R 1 CO 2 R 2 where R 1 is a C 8 -C 30 acid residue and R 2 is a C 1 -C 12 alcohol residue.
  • the alcohol is preferably a C 12 -C 24 , more preferably a C 14 -C 20 alcohol, with C 16 being particularly preferred.
  • the acid residue R 1 is preferably a C 12 -C 24 hydrocarbyl group, more preferably C 14 -C 20 , with C 16 -C 18 being particularly preferred.
  • the alcohol residue R 2 is preferably a C 1 -C 8 hydrocarbyl group. Examples of the alcohol of which R 2 is the residue are methanol, 2-ethylhexanol, ethanol, butanol and isotridecanol.
  • Amounts of component (A1) range from 1.5 to 3.7wt%, preferably from 1.8 to 3.5wt% and more preferably from 2 to 3wt%.
  • Component (A2) is a surfactant, which means anything capable of acting as an emulsifier.
  • the surfactant is preferably nonionic, and may have a hydrophobic portion of C 10 -C 28 , preferably C 14 -C 24 , and more preferably C 16 -C 20 chain length, optionally modified with 1-20, preferably 4-16 and more preferably 6-12 units of a hydrophobic polyalkoxylate chain, plus a hydrophilic portion comprising a polyalkoxylate.
  • the nonionic surfactant may comprise a C 10 -C 28 , preferably C 14 -C 24 and more preferably C 16 -C 20 fatty acid esterified with a polyfunctional alcohol.
  • the surfactant may alternatively be anionic, in which case it may have a hydrophobic portion of C 10 -C 28 , preferably C 14 -C 24 , and more preferably C 16 -C 20 chain length, optionally modified with 1-20, preferably 4-16 and more preferably 8-10 units of a hydrophobic polyalkoxylate chain, and capped with an anionic group such as carboxylate, sulfate, sulfonate, sulfosuccinate or phosphate, with carboxylate, sulfonate and phosphate being preferred, of which carboxylate and phosphate are most preferred.
  • a further list of possible surfactants includes C 16 -C 18 fatty alcohol ethoxylates - with an ethoxylation range of 0-9 moles (fatty alcohol polyglycol ethers); C 16 -C 18 fatty alcohol ethoxylate and propoxylate; C 6 /C 8 /C 16 -C 18 alkyl polyoxyethylene ether carboxylic acids with a 2 to 9 mole ethoxylation range; alkyl ether ethoxylate mono phosphate esters - alkyl chain C18 , with a 2 to 5 mole ethoxylation range; ethoxylated oleine with a 6/9 mole ethoxylation range; and polyethylene glycol esters of C 16 -C 18 fatty acids. Combinations of various surfactants may be particularly advantageous.
  • surfactants include alkanolamides, alkylaryl sulfonates, alkylaryl sulfonic acids, amine oxides, amide and amine soaps, block copolymers, carboxylated alcohols, carboxylic acids/fatty acids, ethoxylated alcohols, ethoxylated amines/amides, ethoxylated fatty acids, ethoxylated fatty esters and oils, ethoxylated phenols, fatty amines and esters, glycerol esters, glycol esters, imidazolines and imidazoline derivatives, lignin and lignin derivatives, maleic or succinic anhydrides, methyl esters, monoglycerides and derivatives, naphthenic acids, olefin sulfonates, phosphate esters, polyalkylene glycols, polyols, polymeric (polysaccharides, acrylic acid, acrylamide), propoxylated &
  • nonionic surfactants are fatty alcohol alkoxylates, polyethylene glycol esters, sorbitan esters and sorbitan ester alkoxylates.
  • anionic surfactants are alkyl ether carboxylates, sulfosuccinates, sulphonates, alkyl phosphate esters and alkyl ether phosphate esters.
  • Combinations of surfactants may also be particularly advantageous.
  • Amounts of component (A2) range from 1.5 to 3.7wt%, preferably from 1.8 to 3.5wt% and more preferably from 2 to 3wt%.
  • Types of additives include glycols and glycol ethers to prevent gelling, foam control agents, anti-wear additives, extreme pressure additives, pH buffers and biocides.
  • Biocides include, but are not limited to, formaldehyde releasing agents including ortho-formal, hexahydratriazine and derivatives, methylene bis morpholene, oxazoladine and derivatives, isothiazolinones and derivatives and iodo propyl butyl carbamate-fungicide.
  • formaldehyde releasing agents including ortho-formal, hexahydratriazine and derivatives, methylene bis morpholene, oxazoladine and derivatives, isothiazolinones and derivatives and iodo propyl butyl carbamate-fungicide.
  • Extreme pressure additives include, but are not limited to, chlorinated and sulfurized fatty acids and esters, polysulfides, organophosphates, and neutralized phosphate esters.
  • foam control agents include, but are not limited to, methyl silicone oil, fluorosilicone oil, polyacrylate and the like.
  • the total amount of all components (A3) ranges from 0.5 to 1.8wt%, preferably from 0.6 to 1.5wt% and more preferably from 0.7 to 1.4wt%.
  • Component (B1) is an amine which is soluble in water at room temperature.
  • Examples include aminomethylpropanol (AMP-95), 3-amino-4-octanol, diglycolamine (DGA), monoethanolamine (MEA), monoisopropanolamine (MIPA), butylethanolamine (NBEA), dicylclohexylamine (DCHA), diethanolamine (DEA), butyldiethanolamine (NBDEA), triethanolamine (TEA), and methylpentamethylenediamine.
  • Amounts of component (B1) range from 6 to 15wt%, preferably from 6.5 to 10wt% and more preferably from 7 to 8wt%. Alternative preferred ranges are from 9 to 12wt%, preferably from 10 to 12wt%.
  • Corrosion inhibitors are chemical compounds which, when added at low concentrations, inhibit the corrosion of metals and alloys. They generally function by either forming a passivation layer on the metal, or by inhibiting either the oxidation or reduction part of the redox corrosion system (anodic and cathodic inhibitors), or by scavenging dissolved oxygen. Different metals typically require different corrosion inhibitors.
  • corrosion inhibitors examples include alkylphosphonic acids, alkali and alkanolamine salts of carboxylic acids, undecandioic/dodecandioic acid and its salts, C 4 -C 22 carboxylic acids and their salts, tolytriazole and its salts, benzotriazole and its salts, imidazoline and its salts, alkanolamines and amides, sulfonates, alkali and alkanolamine salts of naphthenic acids, phosphate ester amine salts, alkali nitrites, alkali carbonates, carboxylic acid derivatives, alkylsulfonamide carboxylic acids, arylsulfonamide carboxylic acids, fatty sarkosides, phenoxy derivatives and sodium molybdate.
  • a further list of possible corrosion inhibitors which can be used includes polycarboxylic acid compounds, polymeric phosphoric acid compounds and benzotriazole. but are not limited to amine/alkali salts of short chain carboxylic mono acids, di acids and tri acids, short chain acidic phosphate esters, including alkoxylated esters, semi-succinate half esters, amide-carboxylic acid salts, fatty amides, and amine and alkali sulphonates or their derivatives.
  • Inhibitors for yellow metals include benzotriazole or its derivatives and tolutriazole or its derivatives.
  • Suitable esters include, but are not limited to TMP (trimethylol propane) mono, di and tri esters of C 8 - C 18 fatty acids, glycol esters of predominantly olely fatty acids, methyl or isopropyl esters of predominantly olely fatty acids or triglycerides, natural triglycerides, such as rapeseed, and modified natural oils such as blown rapeseed.
  • TMP trimethylol propane
  • di and tri esters of C 8 - C 18 fatty acids glycol esters of predominantly olely fatty acids, methyl or isopropyl esters of predominantly olely fatty acids or triglycerides
  • natural triglycerides such as rapeseed
  • modified natural oils such as blown rapeseed.
  • Preferred cast iron corrosion inhibitors include undecandioic/dodecandioic acid and its salts.
  • Preferred yellow metal corrosion inhibitors include tolytriazole sodium salts.
  • Preferred aluminum corrosion inhibitors include octanephosphonic acid and citric acid monohydrate.
  • Amounts of component (B2) range from 2 to 5wt%, preferably from 2.1 to 4.5wt% including ranges from 2.2 to 2.8wt% and from 4.0 to 4.5wt%, with the higher range being for applications involving copper.
  • the amounts and types of corrosion inhibitor required for different metals are well understood by those skilled in the art.
  • Component (B3) is a compound having a solubility in water which varies inversely with temperature. As stated above it is selected from ethylene oxide or propylene oxide block copolymers, ethylene oxide or propylene oxide random copolymers, ethylene oxide or propylene oxide polymer esters and ethylene oxide ethers. Examples of such compounds are the reaction products of alcohols and alkylene oxides commonly known as polyalkylene glycols (PAGs). Polyalkylene glycols are well known as lubricants in many applications including metalworking fluids due to their high thermal and oxidative stability, excellent lubricity and high film strength/load capacity, as well as good anti-wear properties and shear stability.
  • PAGs polyalkylene glycols
  • PAGs are random or block copolymers containing ethylene oxide (EO) and propylene oxide (PO) units.
  • the cloud point defined as the temperature at which the PAG in a 1% aqueous solution comes out of solution, is dependent primarily on the EO content, which can range from 10% to 80%, and is typically between 20% and 75%.
  • the cloud point may vary from 20°C to 90°C, with values in the range 40°C to 90°C being preferred.
  • the exact PAG used may depend on the cloud point required, which in turn depends on the intended final application of the concentrate.
  • Amounts of component (B3) range from 5 to 15wt%, preferably from 6 to 14wt% and more preferably from 7 to 13wt%.
  • Component (B4) is water, and is present in an amount of 60-80wt%, preferably 69-78wt%, more preferably 70-77wt%. Alternative prefered ranges are 60-72wt%, preferably 62-70wt%.
  • Each of the above components of the concentrate (A1)-(A3) and (B 1)-(B3) may comprise either a single compound or more than one compound.
  • a preferred metalworking fluid concentrate formulation comprises
  • Formulations which are particularly suited for metalworking operations at relatively high temperatures, such as those involving ferrous metals, preferably contain amounts of the various components listed above as follows:
  • a particularly preferred formulation suited for metalworking operations at relatively high temperatures is a metalworking fluid concentrate comprising
  • Formulations which are particularly suited for metalworking operations at lower temperatures typically contain lower amounts of water, because the lower operating temperature means that the PAG reaches its cloud point more slowly and hence additional lubricant components are required. If the worked metal is copper, such as in some wire drawing, such formulations also require higher amounts of corrosion inhibitors due to the presence of corrosive copper ions.
  • Preferred formulations for such operations contain amounts of the various components listed above as follows:
  • a particularly preferred formulation for lower temperature operation is a metalworking fluid concentrate comprising
  • the metalworking fluid concentrate is preferably formulated by mixing components (A1)-(A3) and (B1-B4) as two separate formulations or phases (A) and (B), which are then combined to form the final formulation.
  • components (B1) and (B2) may be dissolved in water (B4), and the PAG (B3) dissolved in the resulting solution.
  • Pre-blended components (A1)-(A3) may then be added.
  • Components (A1)-(A3) may be regarded as oleaginous components, and (B1)-(B4) as aqueous components similar to a fully synthetic metalworking fluid.
  • a key feature of the present invention is that the oleaginous phase (A) and the aqueous phase (B) are capable of forming a stable emulsion when mixed together.
  • the precise amounts of component (A2) can be adjusted in order to optimise the long-term stability.
  • the metalworking fluid concentrate is diluted with water in a known manner, either prior to or during use. Accordingly a further aspect of the invention provides a metalworking fluid comprising 3-20wt% of the above metalworking fluid concentrate and 80-97wt% of water. Preferably the concentrate comprises 10-15wt% of the metalworking fluid.
  • a drawing oil concentrate was formulated by forming an oleaginous phase (A) comprising components (A1)-(A3) and an aqueous phase (B) comprising components (B1)-(B4).
  • the two phases were then mixed together to form an emulsion having the composition shown in Table 1: TABLE 1 Component Compound wt% A1 G16 Guerbet alcohol 1.8 A1 CE-1875 (methyl oleate/methyl palmitate) 0.9 A2 Oleth-9-carboxyate 0.9 A2 Oxirane, 2-methyl, polymer with oxirane, hexadecyl ether (CAS 9087-53-0) 1.8 A3 Foamban ® 1840 0.1 A3 Ethyl diglycol ether 0.75 B1 Triethanolamine 90% 14.44 B2 Polycarboxylic acid 50% 4.0 B2 Benzotriazole 0.4 B3 PAG W270 (75% EO, cloud point 85°C) 9.0 B4 Water 65.91
  • the emulsion was diluted in both deionized water and also water containing 500ppm Ca salts to a concentration of 10%. In both cases the result was a bright, semi-translucent and stable emulsion.
  • Example 1 provides lubrication slightly more rapidly than the fully synthetic oil, and much more rapidly than a soluble oil. Overall lubrication was also significantly better than both commercial oils.
  • Example 2 is a general purpose metal-cutting fluid designed for use with both ferrous and non-ferrous metals. It was formulated in the same way as Example 1, and has the composition shown in Table 3: TABLE 3 Component Compound wt% A1 G16 Guerbet alcohol 1.8 A1 CE-1875 (methyl oleate/methyl palmitate) 0.9 A2 Oleth-9-carboxyate 0.1 A2 C 16 -C 18 phosphate ester 2.7 A3 Foamban ® 1840 0.3 A3 20% bisisothiazolinone in glycol (biocide) 1.2 A3 Ethyl diglycol ether 0.75 B1 Triethanolamine 90% 7.8 B2 Polycarboxylic acid 50% 2.5 B3 Pluronic PE6400 (PO/EO block, -40% PEG) 9.0 B4 Water 72.95
  • Example 2 The stability of this formulation was found to be similar to that of Example 1.
  • the performance of this formulation was compared with two commercially available metalworking fluid concentrates, one a soluble oil and the other a semi-synthetic cutting fluid, using a Reichert wear tester as in Example 1. All formulations were used as a 10% dilution in water. The results are shown in Table 4 below: TABLE 4 Noise drop-off time (secs) % weight loss of bearing pin Example 2 21.5 14.9 Commercial soluble cutting oil 100 81.7 Commercial semi-synthetic cutting oil 100 77.4
  • Example 2 provides lubrication much more rapidly than both commercial oils, and overall lubrication was also significantly better than both commercial oils.
  • Example 3 is a metal-cutting fluid designed for use with non-ferrous metals, which are typically softer and therefore generate less heat. As a result the temperature of the working surface rises to the cloud point of component B3 more slowly, thereby requiring a higher degree of lubrication from the oleaginous phase. Consequently the amount of oleaginous phase is higher and the amount of water lower in this Example. Such formulations may also require a higher level of corrosion inhibitor due to the presence of corrosive copper ions from the worked metal.
  • Example 3 was formulated in the same way as Example 1, and has the composition shown in Table 5: TABLE 5 Component Compound wt% A1 G16 Guerbet alcohol 2.42 A1 CE-1875 (methyl oleate/methyl palmitate) 1.21 A2 Oleth-9-carboxyate 1.21 A2 Oxirane, 2-methyl, polymer with oxirane, hexadecyl ether (CAS 9087-53-0) 2.42 A3 Foamban ® 1840 0.13 A3 20% bisisothiazolinone in glycol (biocide) 1.2 A3 Ethyl diglycol ether 1.01 B1 Triethanolamine 90% 11.9 B2 Citric acid monohydrate 0.5 B2 Polycarboxylic acid 50% 2.5 B3 Pluronic RPE1740 (EO/PO block. -40% PEG) 9.0 B4 Water 66.5
  • Example 2 The stability of this formulation was found to be similar to that of Example 1.
  • the performance of this formulation was compared with two commercially available metalworking fluid concentrates, one a non-ferrous cutting fluid and the other a semi-synthetic cutting fluid, using a Reichert wear tester as in Example 1. All formulations were used as a 10% dilution in water. The results are shown in Table 6 below: TABLE 6 Noise drop-off time (secs) % weight loss of bearing pin Example 3 11 9.0 Commercial soluble cutting fluid 100 98.3 Commercial semi-synthetic cutting fluid 100 77.4
  • Example 3 provides lubrication much more rapidly than both commercial oils, and overall lubrication was also significantly better than both commercial oils.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
EP23178960.3A 2022-06-21 2023-06-13 Metallbearbeitungsflüssigkeitskonzentrat Pending EP4296339A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2209118.5A GB2619938A (en) 2022-06-21 2022-06-21 Metalworking fluid concentrate

Publications (1)

Publication Number Publication Date
EP4296339A1 true EP4296339A1 (de) 2023-12-27

Family

ID=82705405

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23178960.3A Pending EP4296339A1 (de) 2022-06-21 2023-06-13 Metallbearbeitungsflüssigkeitskonzentrat

Country Status (2)

Country Link
EP (1) EP4296339A1 (de)
GB (1) GB2619938A (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000053701A1 (en) * 1999-03-05 2000-09-14 Castrol Limited Lubricant composition comprising a carboxy-terminated reaction product
EP2075319A1 (de) * 2007-12-10 2009-07-01 Nalco Company Formulierung einer Metallverarbeitungsflüssigkeit
CN109777584A (zh) * 2017-11-13 2019-05-21 杨轲宇 一种含有氧化石墨烯切削液及其制备方法
WO2022099300A1 (en) * 2020-11-05 2022-05-12 Ardagh Metal Beverage USA Inc. Metalworking formulations with corrosion inhibitor formulations

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB846839A (en) * 1959-01-30 1960-08-31 Shell Res Ltd Method and lubricating composition for metal rolling, cutting and drilling
CN107312605A (zh) * 2016-04-27 2017-11-03 上海金艺检测技术有限公司 高性能全合成切削液及其制备方法
CN110684585B (zh) * 2018-07-05 2021-10-29 厦门油典集团有限公司 一种微乳型切削液及其制备方法
CN113652290A (zh) * 2021-08-09 2021-11-16 安美科技股份有限公司 一种长寿命镁合金切削液的制备及其使用方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000053701A1 (en) * 1999-03-05 2000-09-14 Castrol Limited Lubricant composition comprising a carboxy-terminated reaction product
EP2075319A1 (de) * 2007-12-10 2009-07-01 Nalco Company Formulierung einer Metallverarbeitungsflüssigkeit
CN109777584A (zh) * 2017-11-13 2019-05-21 杨轲宇 一种含有氧化石墨烯切削液及其制备方法
WO2022099300A1 (en) * 2020-11-05 2022-05-12 Ardagh Metal Beverage USA Inc. Metalworking formulations with corrosion inhibitor formulations

Also Published As

Publication number Publication date
GB2619938A (en) 2023-12-27
GB202209118D0 (en) 2022-08-10

Similar Documents

Publication Publication Date Title
CA2708595C (en) Formulation of a metalworking fluid
US11186800B2 (en) Metalworking fluid
CN101104831B (zh) 微乳化型不锈钢切削液
KR101993485B1 (ko) 무-아민, 무-voc 금속 가공 유체
US9920276B2 (en) High performance, water-dilutable lubricity additive for multi-metal metalworking applications
JP4531882B2 (ja) 水溶性金属加工油剤
JPH11279581A (ja) 金属加工用水溶性油剤
JPH10324887A (ja) 水溶性油剤組成物
JP2004256771A (ja) 水溶性切研削油剤組成物及びその使用方法
EP4296339A1 (de) Metallbearbeitungsflüssigkeitskonzentrat
JP3132801B2 (ja) 絞り・しごき缶用潤滑油組成物
US12077722B2 (en) Water based semi-synthetic metalworking fluid composition
JPH10110181A (ja) 水溶性金属塑性加工剤
JP2006348059A (ja) 水溶性金属加工油剤組成物

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

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

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