EP2075319A1 - Formulation of a metalworking fluid - Google Patents

Formulation of a metalworking fluid Download PDF

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Publication number
EP2075319A1
EP2075319A1 EP08252578A EP08252578A EP2075319A1 EP 2075319 A1 EP2075319 A1 EP 2075319A1 EP 08252578 A EP08252578 A EP 08252578A EP 08252578 A EP08252578 A EP 08252578A EP 2075319 A1 EP2075319 A1 EP 2075319A1
Authority
EP
European Patent Office
Prior art keywords
acid
oil
esters
salts
percent
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.)
Ceased
Application number
EP08252578A
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German (de)
English (en)
French (fr)
Inventor
Lloyd Hundley
Ji Cui
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.)
ChampionX LLC
Original Assignee
Nalco Co LLC
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 Nalco Co LLC filed Critical Nalco Co LLC
Publication of EP2075319A1 publication Critical patent/EP2075319A1/en
Ceased legal-status Critical Current

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    • C10M173/00—Lubricating compositions containing more than 10% water
    • C—CHEMISTRY; METALLURGY
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    • C10M103/00—Lubricating compositions characterised by the base-material being an inorganic material
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    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/04—Mixtures of base-materials and additives
    • C10M169/045—Mixtures of base-materials and additives the additives being a mixture of compounds of unknown or incompletely defined constitution and non-macromolecular compounds
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    • C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
    • C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
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    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
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    • C10M2215/22—Heterocyclic nitrogen compounds
    • C10M2215/223—Five-membered rings containing nitrogen and carbon only
    • C10M2215/224—Imidazoles
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/02—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/024—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an amido or imido group
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/02—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/026—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a nitrile group
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/02—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/028—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a nitrogen-containing hetero ring
    • 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
    • C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
    • C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
    • 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
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • 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
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C10M2223/043—Ammonium or amine salts 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
    • C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
    • C10M2227/06—Organic compounds derived from inorganic acids or metal salts
    • C10M2227/066—Organic compounds derived from inorganic acids or metal salts derived from Mo or W
    • 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
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/02—Groups 1 or 11
    • 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
    • C10N2020/055—Particles related characteristics
    • C10N2020/06—Particles of special shape or size
    • 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
    • C10N2020/09—Characteristics associated with water
    • C10N2020/091—Water solubility
    • 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
    • C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
    • 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
    • C10N2030/16—Antiseptic; (micro) biocidal or bactericidal
    • 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
    • C10N2030/24—Emulsion properties
    • 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
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/01—Emulsions, colloids, or micelles

Definitions

  • This invention relates to a composition that is a novel improvement of non-oil containing metalworking fluids, also known as synthetic metalworking fluids.
  • Metalworking fluids are classified into two main segments, oil containing and non-oil containing.
  • the oil-containing segment comprises straight oils/soluble oils/semi-synthetics, all of which utilize mineral oil as the primary lubricant.
  • the non-oil segment is known as synthetics, which use surfactants/polymers/fatty acids as the main lubricant.
  • the invention consists of an adaptation of synthetic metalworking fluid that demonstrates an engineered increase in lubricity while still providing corrosion protection and microbial control.
  • the water reducible metalworking fluids market is primarily segmented into two product classes, oil-containing and non-oil containing.
  • Two types of products make-up the oil containing line, soluble oils and semi-synthetics, and both contain mineral oil as their primary lubricity ingredient.
  • the non-oil containing products are called synthetics and have EO/PO polymers, surfactant or fatty acids or combinations thereof as their primary lubricity ingredient.
  • the soluble oil and semi-synthetic products enjoy an eighty percent share of the market while the synthetics comprise 10% of the market. The remaining 10% is held by the non-water reducible straight oils segment.
  • the two existing classifications have advantages and drawbacks.
  • the oil-containing sectors have the advantages of excellent lubricity, a wide range of applications and that the mineral oil provides barrier protection of sumps from corrosion.
  • the drawbacks of oil-containing metalworking fluids are that water hardness often impacts the fluid stability, that foaming is a frequent problem due to their inclusion of higher detergency emulsifiers, in their increased dirt load entrainment, in their increased disposal and tank clean-out impacts and in their increased microbial problems.
  • the current synthetic segment of the metalworking fluids market has the advantage of not having the cleaning issues of oils, having good hard water stability and microbial control, and a long sump life.
  • the drawbacks of the existing synthetics are reduced physical lubricity when compared to oil-containing products on an equal cost basis, increased sump and machine maintenance corrosion issues, and the potential for skin irritation to those working with the fluid.
  • the current invention has developed an entirely new class of metalworking fluid products.
  • This new chemistry incorporates a synergistic blend of carboxylic acid salts/boundary lube fatty acids and EO/PO polymers, which at an optimized pH range react to form a moiety with enhanced particle size and exceptional lubricity.
  • use dilutions are opaque and mimic the appearance of oil-based solutions.
  • the current invention describes the following key aspects:
  • Metalworking is the shaping of metallic work-pieces to conform to a desired set of geometric specifications.
  • Metalworking comprises two basic categories, cutting and forming.
  • Cutting operations include grinding, turning, milling, tapping, broaching and hobbing.
  • Forming operations include hot and cold rolling, drawing, forging, stamping and blanking.
  • Metalworking fluids are essential in both cutting and forming operations. They must provide for lubrication between the work-piece and tool and also provide cooling by removing the heat generated during the metalworking operations.
  • Lubrication is defined as the reduction of friction between two moving surfaces.
  • the two main types of lubrication in metalworking operations are hydrodynamic and boundary/extreme pressure (EP).
  • Hydrodynamic lubrication involves separating the moving surfaces by a film of fluid lubricant.
  • Boundary/EP lubrication minimizes the wear experienced when surfaces rub together.
  • polymeric lubricity agents can provide both types of lubrication.
  • block copolymers consisting of a central polyoxypropylene block with a polyoxyethylene chain at either end
  • block copolymers consisting of a central polyoxyethylene block with a polyoxypropylene chain at either end tetrablock copolymers derived from the sequential addition of ethylene oxide and propylene oxide to ethylenediamine, ethylene oxide/ propylene oxide copolymers having at least one terminal hydroxyl group, water-soluble lubricant base stocks of random copolymers of ethylene oxide and propylene oxide, a water-soluble polyoxyethylene or polyoxypropylene alcohol or a water-soluble carboxylic acid ester of such alcohol, alcohol-started base stocks of all polyoxypropylene groups with one terminal hydroxyl group, monobasic and dibasic acid esters, polyol esters, polyalkylene glycol esters, polyalkylene glycols grafted with organic acids, phosphate esters, polyisobutylenes, poly
  • Partially neutralized carboxylic acids salts provide a lipophylic moiety for the polymeric lubricity agents to network with and provide for the engineering of a larger particle size.
  • the pH of the partial neutralization is dependent upon the alkaline agent used.
  • Many of these carboxylic acid salts additionally provide their own boundary lubrication as well.
  • the carboxylic acids can be linear or branched, saturated or unsaturated, fatty or oil, animal or vegetable, cis or trans configured, dicarboxylic, tricarboxylic, esterified, amines, amides, or ethoxylated.
  • carboxylic acids caproic/hexanoic acid, enanthic/heptanoic acid, caprylic/octanoic acid, pelargonic/nonanoic acid, isononanoic acid, capric/decanoic acid, neodecanoic acid, lauric/dodecanoic acid, stearic/octadecanoic acid, arachidic/eicosanoic acid, palmitic/hexadecanoic acid, erucic acid, oleic acid, arachidonic acid, linoleic acid, linolenic acid, myristic/tetradecanoic acid, behenic/docosanoic acid, alpha-linolenic acid, docosahexaenoic acid, ricinoleic acid, butyric acid, lard oil, tallow oil, butter, coconut oil, palm oil, cottonseed
  • Emulsifying/dispersing agents provide stabilization of the engineered large particle emulsion.
  • the emulsifiying/dispersing agents may be one or more of the following: alkanolamides, alkylaryl sulfonates, alkylaryl sulfonic acids, amine oxides, amide and amine soaps, block copolymers, carboxylated alcohols, carboxylic acids/fatty acids, ethoxylated alcohols, ethoxylated alkylphenols, 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,
  • a corrosion inhibitor is a chemical compound that, when added in small concentration, stops or slows down the corrosion of metals and alloys.
  • Some of the mechanisms for the corrosion inhibitors effect are the formation of a passivation layer (a thin film on the surface of the material that stops access of the corrosive substance to the metal), inhibiting either the oxidation or reduction part of the redox corrosion system (anodic and cathodic inhibitors), or scavenging the dissolved oxygen.
  • a passivation layer a thin film on the surface of the material that stops access of the corrosive substance to the metal
  • anodic and cathodic inhibitors inhibiting either the oxidation or reduction part of the redox corrosion system (anodic and cathodic inhibitors), or scavenging the dissolved oxygen.
  • Alkalinity Agents provide for the desired pH of the product and, in some cases for reserve alkalinity and pH buffering.
  • alkalinity agents include but are not limited to alkanolamines - primary, secondary and tertiary, aminomethylpropanol (AMP-95), diglycolamine (DGA), monoethanolamine (MEA), monoisopropanolamine (MIPA), butylethanolamine (NBEA), dicylclohexylamine (DCHA), diethanolamine (DEA), butyldiethanolamine (NBDEA), triethanolamine (TEA), metal alkali hydroxides, potassium hydroxide, sodium hydroxide, magnesium hydroxide, lithium hydroxide, metal carbonates and bicarbonates, sodium carbonate, sodium bicarbonate, potassium carbonate and potassium bicarbonate.
  • the claimed invention has many attributes that make it varied from existing products.
  • the fact that it is a synthetic product which incorporates the attributes of an oil-based product is novel.
  • the positive attributes of currently available non-oil products are maintained in this composition as well and include environmental compliance, good cooling, good chip removal/settling characteristics, long sump life and good biological resistance.
  • the current invention is a non-oil containing metalworking fluid composition consisting of a volume average particle size of 125nm or greater when diluted between 0.1 and 50 percent, comprised of one or more polymeric lubricity agent(s), one or more carboxylic acid salt(s), one or more emulsifying/dispersing agent(s), a transport component which can be water and one or more corrosion inhibiting component(s).
  • the invention has a pH of 3 or greater and may also include an alkalinity agent which can be one or more of the following a primary, secondary, tertiary and quaternary alkanolamine and can be a metal alkali hydroxide.
  • the invention can also contain an anti-foaming agent and/or a biocide and a fungicide.
  • the working metal fluid composition when diluted between 0.1 and 50 percent comprises a lubricity, measured by tapping torque instruments, of less than 8000 Newton-cm -1 .
  • Example 1 Material A B C D E Pluronic "R" block copolymer 0% 10% 20% 20% 20% Carboxylic acid - alkali salts 10% 10% 10% 5% 0% Emulsifiers 5% 5% 5% 5% 5% Corrosion inhibitors 4% 4% 4% 4% RO water Remainder Remainder Remainder Remainder Remainder Remainder
  • Example 1 The materials of Example 1 were employed in a tapping torque operation involving the tapping of 6061 aluminum.
  • the concentrates were first diluted to a 7.5% by volume solution before testing.
  • the tapping torque test is a quantitative measure of the lubricity performance of metalworking fluids. It has an ASTM standard method designation of D5619.
  • Tapping torque reflects the industrial machining process in a better way than other tests, which commonly consist of rubbing two metals together. It is an excellent method of discriminating MWF product machining performance in the laboratory. Tapping Torque results have been proven to correlate well with field machining performance.
  • the tapping torque instrument is designed to measure the lubricity of MWFs while actual cutting is performed.
  • the Tapping Torque instrument measures the instantaneous torque 250 times as the tap advances throughout the depth of the cut. Specialized software then facilitates data analysis. Tapping torque is expressed in units of N-m (Newton-meters) or N-cm (Newton-centimeters). Products with high lubricity will generate lower torque values. Conversely, low lubricity products will generate high torque values. In this way the instrument quantifies the differences in lubrication performance between products.
  • the materials of example 2 were employed in a particle size operation involving the measurement of the volume average particle size in nanometer units.
  • the concentrates were first diluted with water to a 7.5% by volume solution before testing.
  • the particle-sizing instrument uses high efficiency dynamic light scattering to quantify particle sizes of 20 to 100,000 nanometers.
  • Typical synthetic MWFs when diluted, form clear solutions with particle size of less than 100 nanometers. Dilutions of sample C are milky-white opaque and as seen in examples 2 and 3, have particle sizes 3.5 to 20 times larger than the maximum size seen with typical synthetic MWFs.
  • the lubricity is a function of its volume average particle size. Increasing volume average particle size results in increased lubricity.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Lubricants (AREA)
EP08252578A 2007-12-10 2008-07-29 Formulation of a metalworking fluid Ceased EP2075319A1 (en)

Applications Claiming Priority (1)

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US11/953,502 US20090149359A1 (en) 2007-12-10 2007-12-10 Formulation of a metal working fluid

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US (1) US20090149359A1 (ko)
EP (1) EP2075319A1 (ko)
JP (1) JP5704921B2 (ko)
KR (2) KR20160120787A (ko)
CN (2) CN106635320A (ko)
BR (1) BRPI0822063A2 (ko)
CA (1) CA2708595C (ko)
MX (1) MX360113B (ko)
WO (1) WO2009076151A1 (ko)

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EP3130654A1 (en) * 2015-08-14 2017-02-15 Sasol Performance Chemicals GmbH Composition comprising 2-alkyl carboxylic acid salts and use thereof as anti-corrosion additive
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CN110305728B (zh) * 2019-08-07 2021-12-17 上海工程技术大学 一种高分子塑性成形用润滑剂及制备方法
CN111286395B (zh) * 2020-03-23 2022-04-22 东莞市英思漫润滑科技有限公司 一种金属加工用切削液
CN115247096A (zh) * 2021-10-25 2022-10-28 哈尔滨市力安特科技发展有限责任公司 一种高安全无害的切削液及其制备方法
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JP2011506683A (ja) 2011-03-03
KR20100135218A (ko) 2010-12-24
CA2708595A1 (en) 2009-06-18
CN101970621A (zh) 2011-02-09
CA2708595C (en) 2017-08-15
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MX360113B (es) 2018-10-23
WO2009076151A1 (en) 2009-06-18

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