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US20200181526A1 - Solution for processing machines - Google Patents

Solution for processing machines Download PDF

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Publication number
US20200181526A1
US20200181526A1 US16/613,826 US201816613826A US2020181526A1 US 20200181526 A1 US20200181526 A1 US 20200181526A1 US 201816613826 A US201816613826 A US 201816613826A US 2020181526 A1 US2020181526 A1 US 2020181526A1
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US
United States
Prior art keywords
solution
processing machines
processing
fluorine
tool
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.)
Abandoned
Application number
US16/613,826
Inventor
Hirofumi Ienaga
Taro TAKEUCHI
Hidekazu INAGAKI
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.)
Mitsubishi Heavy Industries Ltd
Moresco Corp
Original Assignee
Mitsubishi Heavy Industries Ltd
Moresco Corp
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Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd, Moresco Corp filed Critical Mitsubishi Heavy Industries Ltd
Assigned to MITSUBISHI HEAVY INDUSTRIES, LTD., MORESCO CORPORATION reassignment MITSUBISHI HEAVY INDUSTRIES, LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: IENAGA, HIROFUMI, INAGAKI, HIDEKAZU, TAKEUCHI, Taro
Publication of US20200181526A1 publication Critical patent/US20200181526A1/en
Abandoned legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M173/00—Lubricating compositions containing more than 10% water
    • C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
    • C10M107/20—Lubricating compositions characterised by the base-material being a macromolecular compound containing oxygen
    • C10M107/30—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M107/32—Condensation polymers of aldehydes or ketones; Polyesters; Polyethers
    • C10M107/34—Polyoxyalkylenes
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    • C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
    • C10M107/40—Lubricating compositions characterised by the base-material being a macromolecular compound containing nitrogen
    • C10M107/44—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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    • C10M131/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing halogen
    • C10M131/08—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing halogen containing carbon, hydrogen, halogen and oxygen
    • C10M131/12—Acids; Salts or esters thereof
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    • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
    • C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
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    • C10M135/10—Sulfonic acids or derivatives thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
    • B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
    • B64F5/10—Manufacturing or assembling aircraft, e.g. jigs therefor
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    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/102—Aliphatic fractions
    • C10M2203/1025—Aliphatic fractions used as base material
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    • C10M2207/022—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least two hydroxy groups
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    • 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
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    • C10M2207/283—Esters of polyhydroxy compounds
    • C10M2207/2835—Esters of polyhydroxy compounds used as base material
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    • C10M2209/101—Condensation polymers of aldehydes or ketones and phenols, e.g. Also polyoxyalkylene ether derivatives thereof
    • C10M2209/1013—Condensation polymers of aldehydes or ketones and phenols, e.g. Also polyoxyalkylene ether derivatives thereof used as base material
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    • C10M2209/1033—Polyethers, i.e. containing di- or higher polyoxyalkylene groups used as base material
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    • C10M2211/06—Perfluorinated compounds
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    • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
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    • C10M2215/042—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Alkoxylated derivatives thereof
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Definitions

  • the present invention relates to a solution for processing machines, which is used at the time of processing a stacked material of a fiber reinforcement composite material for planes and/or a metal material.
  • tools such as a drill and an end mill that perform a predetermined mechanical processing are used.
  • the tools are installed in a processing machine.
  • the processing machine performs mechanical processing on a processing subject by rotating a tool around a central axis.
  • a solution for processing machines which is called a cutting oil and the like is provided between the tool and the processing subject.
  • the solution for processing machines enhances processability by lubricating a gap between a tool and a processing subject and decreasing a frictional force generated between the tool and the processing subject.
  • the solution for processing machines suppresses an increase in temperatures of the tool and the processing subject due to a frictional heat between the tool and the processing subject.
  • the solution for processing machines includes an oily solution for processing machines having an oil as a main component (for example, refer to Patent Document 1) and an aqueous solution for processing machines using a surfactant and a lubricating component by diluting thereof with water.
  • the oily solution for processing machines is excellent in lubricating properties, compared with the aqueous solution for processing machines.
  • the aqueous solution for processing machines is excellent in cooling properties, compared with the oily solution for processing machines. For this reason, depending on desired properties at the time of processing, among lubricating properties, cooling properties, and the like, the solution for processing machines to be used is selected.
  • a technique of an emulsion type cutting oil solution (for example, refer to Patent Document 3) in which fatty acid ester, a mineral oil, and the like are mixed with one another is known.
  • Patent Document 1 Japanese Unexamined Patent Application, First Publication No. 2008-163115
  • Patent Document 2 Japanese Unexamined Patent Application, First Publication No. 2012-250341
  • Patent Document 3 Japanese Unexamined Patent Application, First Publication No. 2011-111593
  • the present invention has been made in consideration of the circumstances and an object of the present invention is to provide a solution for processing machines having high lubricating properties, cooling properties, and washing properties which is used at the time of processing a stacked material of a fiber reinforcement composite material for planes and/or a metal material.
  • the present invention employs the following means.
  • a solution for processing machines includes a lubricating base including polyalkylene glycol; a fluorine-based surfactant or a cationic surfactant; and water.
  • the solution for processing machines is made of an aqueous solution including a lubricating base including polyalkylene glycol and a fluorine-based surfactant or a cationic surfactant.
  • a solution for processing machines exhibits high cooling properties while having high lubricating properties due to a lubricating base including polyalkylene glycol.
  • fluorine-based surfactant or the cationic surfactant and water high washing properties are obtained.
  • the lubricating base in the first aspect includes at least one of a polyoxyethylene/polyoxypropylene reverse block, an ethylenediamine polyoxyalkylene condensate, polyoxyethylene polyoxypropylene glycol, and an ethylene oxide propylene oxide polymer, as polyalkylene glycol.
  • the fluorine-based surfactant in the first or second aspect includes at least one of a fluorine-containing group/hydrophilic group/lipophilic group-containing oligomer, perfluoroalkyl group-containing carboxylate, and perfluorobutane sulfonate.
  • the cationic surfactant in the first or second aspect includes at least one of octyldimethylethylanmmonium ethyl sulfate, stearyl dimethylhydroxyethylammonium paratoluenesulfonate, stearyl dimethylamninopropylanmine, didecyl dimethylanmonium chloride, and tetraalkylammonium carboxylate.
  • At least one fatty acid of isononanoic acid and nonanoic acid is further included.
  • At least one amine of triethanolamine and 1.3 bisaminocyclohexane is included.
  • the surface tension measured in an environment of 20.5° C. is 24 mN/m or less.
  • kinematic viscosity measured in an environment of 25° C. is 0.95 mm 2 /s or more.
  • pH is 6 to 9.
  • FIG. 1 is a perspective view showing an example of mechanical processing performed using a solution for processing machines according to an embodiment of the present invention.
  • FIG. 1 is a perspective view showing an example of mechanical processing performed using a solution for processing machines according to an embodiment of the present invention.
  • the solution for processing machines of the embodiment is used at the time of performing drilling processing with a tool 3 on a processing subject 1 .
  • the processing subject 1 is, for example, made by stacking a first member 2 A and a second member 2 B.
  • the first member 2 A is, for example, formed by a fiber reinforcement resin material formed of a reinforcement fiber such as carbon fiber and glass fiber and a resin such as an epoxy resin and a urethane resin.
  • the second member 2 B is, for example, formed by a metal material such as titanium alloy, aluminum alloy, stainless alloy, and nickel alloy.
  • first member 2 A and the second member 2 B can be, for example, formed by a ceramic material, a glass material, and the like.
  • combination of materials of the first member 2 A and the second member 2 B or shapes of the first member 2 A and the second member 2 B are not limited.
  • the first member 2 A such as outer skin made of a fiber reinforcement resin material is fastened to the second member 2 B such as a bracket made of a metal material, and thus in a state of stacking the first member 2 A and the second member 2 B, a hole 4 may be formed.
  • the tool 3 is, for example, a drill for boring the hole 4 in the processing subject 1 .
  • the tool 3 may be an end mill, a cutter, various milling cutters, and the like, for example, in addition to the drill.
  • Such a tool 3 is installed in a processing head of a processing machine (not shown) and rotationally operates around a central axis of the tool 3 .
  • the solution for processing machines is provided with respect to a processing portion in which the tool 3 is in contact with the processing subject 1 .
  • Provision of the solution for processing machines can be performed by a nozzle 6 through which the solution for processing machines is discharged or sprayed with respect to a contact portion between the tool 3 and the processing subject 1 , for example.
  • provision of the solution for processing machines can be performed through a liquid flow path 7 which is formed in the tool 3 and extends in a central axis direction of the tool 3 .
  • the liquid flow path 7 has an opening (not shown) in a tip end portion or am outer peripheral surface of the tool 3 , and the solution for processing machines is discharged from the opening.
  • the solution for processing machines includes a lubricating base including polyalkylene glycol, a fluorine-based surfactant or cationic surfactant, and water.
  • the lubricating base including polyalkylene glycol preferably includes at least one of polyoxyethlyene/polyoxypropylene reverse block, an ethylene diamine polyoxy alkylene condensate, polyoxyethylene polyoxypropylene glycol, and an ethylene oxide propylene oxide polymer.
  • Such a lubricating base preferably includes 5 to 95 wt % in the solution for processing machines.
  • a more preferable range of the amount of the lubricating base is 30 to 90 wt %.
  • the fluorine-based surfactant preferably includes at least one of a fluorine-containing group/hydrophilic group/lipophilic group-containing oligomer, perfluoroalkyl group-containing carboxylate, and perfluorobutane sulfonate.
  • the cationic surfactant preferably includes at least one of octyldimethylethylammonium ethyl sulfate, stearyl dimethylhydroxyethylammonium paratoluenesulfonate, stearyl dimethylaminopropylamine, didecyl dimethylanmonium chloride, and tetraalkylammonium carboxylate.
  • the fluorine-based surfactant or cationic surfactant preferably includes 0.1 to 15 wt %, for example in the solution for processing machines.
  • a preferable range of the amount of the fluorine-based surfactant or cationic surfactant is 0.1 to 10 wt %.
  • the solution for processing machines may further include a fatty acid.
  • the fatty acid preferably includes at least one of isononanoic acid and nonanoic acid.
  • 3 to 25 wt % of the fatty acid is preferably included, for example.
  • a more preferable range of the amount of the lubricating base is 5 to 20 wt %.
  • the solution for processing machines may further include amine.
  • the amine preferably includes at least one of triethanolamine and 1.3 bisaminocyclohexane.
  • 3 to 15 wt % of the amine is preferably included.
  • a more preferable range of the amount of the amine is 5 to 10 wt %.
  • the solution for processing machines is formed by dissolving the above-described materials in water. That is, in the solution for processing machines, the residue of the above-described materials is water.
  • the above-described solution for processing machines preferably lowers surface tension to enhance permeability into a processing portion.
  • the solution for processing machines is preferably generated such that surface tension measured in an environment of 20.5° C. is 24 mN/m or less, for example.
  • kinematic viscosity of the solution for processing subject becomes high.
  • the solution for processing machines is preferably such that the kinematic viscosity measured in an environment of 25° C. is 0.95 mm 2 /s or more, for example.
  • the solution for processing machines is preferably such that variation of friction coefficient is small. Due to variation of friction coefficient, a change in a friction amount in the tool surface becomes large, and abnormal abrasion such as boundary abrasion is caused. For this reason, the solution for processing machines is preferably such that the variation of the friction coefficient with a metal material is generated to be 0.010 to 0.018.
  • the solution for processing machines preferably has a neutral pH of 6 to 9. With this, the aluminum alloy is stabilized.
  • such a solution for processing machines is formed by a water-soluble hydrophilic material.
  • the above-described solution for processing machines is an aqueous solution including a lubricating base including polyalkylene glycol and a fluorine-based surfactant or cationic surfactant.
  • a solution for processing machines exhibits high cooling properties while having high lubricating properties.
  • the solution for processing machines is water-soluble, after processing, it is possible to easily perform washing by not using a solution but flushing with water.
  • the lubricating base including polyalkylene glycol and the fluorine-based surfactant or cationic surfactant, which constitute the solution for processing machines a plurality of substances are specifically exemplified, respectively, and only one kind of substances may be used, or two or more kinds of substances may be used in combination, respectively.
  • the present invention is not limited to the above-described embodiment, and includes embodiments to which various modifications are added within a range not departing the gist of the present invention. That is, specific shapes or constitutions exemplified in the embodiment are merely examples and can be appropriately modified.
  • the solution for processing machines is such that, as shown in FIG. 1 , perforating processing is performed with the tool 3 on the processing subject 1 in which the first member 2 A made of a fiber reinforcement resin material and the second member 2 B made of a metal material are stacked, but is not limited thereto. That is, the material or the use of the processing subject 1 , the amount of processing with the tool 3 , and the like may be different from those shown in the embodiment.
  • a solution for processing machines was generated by using materials shown in Tables 1 and 2.
  • the number of each substance in tables indicates the amount (wt %) of the solution for processing machines.
  • Examples 1 to 19 as a lubricating base, one of polyoxyethylene/polyoxypropylene reverse block (material (product) name: ADEKA Pluronic 17R4, manufactured by ADEKA), ethylenediamine polyoxyalkylene condensate (material name: ADEKA Pluronic TR-913R, manufactured by ADEKA), polyoxyethylene polyoxypropylene glycol (material name: EPAN450, manufactured by DKS Co., Ltd.), and ethylene oxide propylene oxide polymer (material name: Synative RPE1720, manufactured by BASF), which is polyalkylene glycol, was used.
  • material (product) name: ADEKA Pluronic 17R4, manufactured by ADEKA ethylenediamine polyoxyalkylene condensate
  • ADEKA Pluronic TR-913R manufactured by ADEKA
  • EPAN450 polyoxyethylene polyoxypropylene glycol
  • Synative RPE1720 manufactured by BASF
  • the amount of the lubricating base was set as 30 wt %, and in Examples 5, 7, and 8, the amount of the lubricating base was differentiated as 10, 70, and 90 wt %.
  • fluorine-containing group/hydrophilic group/lipophilic group-containing oligomer material name: F477, manufactured by DIC Corporation
  • perfluoroalkyl group-containing carboxylate material name: F410, manufactured by DIC Corporation
  • perfluorobutane sulfonate material name: FC-4430, manufactured by 3M Corporation
  • Examples 3 to 17 as a surfactant, one of octyldimethylethylammonium ethyl sulfate (material name: ES-O, manufactured by DKS Co., Ltd.), stearyl dimethylhydroxyethylammonium paratoluenesulfonate (material name: Catiogen D2, manufactured by DKS Co., Ltd.), stearyl dimethylaminopropylamine (material name: Catiogen SPA, manufactured by DKS Co., Ltd.), didecyl dimethylammonium chloride (material name: Pionin B0011, manufactured by TAKEMOTO Oil and Fat Co., Ltd.) and tetraalkylanunonium carboxylate (material name: Osmoline DA50, manufactured by Sanyo Chemical Industries Ltd.), which is a cationic surfactant, was used.
  • octyldimethylethylammonium ethyl sulfate material name:
  • An additive amount of the surfactant was 1 wt % in Examples 1 to 15, 18, and 19, and was 0.1 and 10 wt %, respectively, in Examples 16 and 17.
  • Example 1 one of isononanoic acid and nonanoic acid, which is a fatty acid (acid), was added.
  • the additive amount of the fatty acid was 5 wt % in Example 1 and was 20 wt % in Examples 2 to 4.
  • Examples 1 to 4 triethanolamine and 1.3 bisaminocyclohexane, which are amine (alkali), were added.
  • the additive amount of triethanolamine was 5 wt % and the additive amount of 1.3 bisaminocyclohexane was 10 wt %.
  • Comparative Examples 1 and 2 as a lubricating base, trimethylolpropane triolate, which is an oily agent, was used. The additive amount was 15 wt %.
  • a surfactant nonionic polyoxyalkylene laurylether (material name: NL-DASH403, manufactured by DKS Co., Ltd.) was added in an amount of 10 wt %, a condensed castor oil fatty acid, which is a fatty acid, was added in an amount of 15 wt %, and monoisopropanolamine, which is amine, was added in an amount of 15 wt %.
  • Example 2 as a surfactant, a fluorine-containing group/hydrophilic group/lipophilic group-containing oligomer, which is a fluorine-based surfactant, was added in an amount of 1 wt %.
  • Comparative Example 3 as a lubricating base, similar to Examples 1 to 8 and 12 to 19, a polyoxyethylene polyoxypropylene reverse block (material name: ADEKA Pluronic 17R4, manufactured by ADEKA), which is polyalkylene glycol, was used.
  • the additive amount was 30 wt %.
  • Comparative Example 4 as a lubricating base, paraffin, which is an oily agent, was used. The additive amount was 40 wt %.
  • a surfactant one of octyldimethylethylammonium ethyl sulfate (material name: ES-O, DKS Co., Ltd.), which is a cationic surfactant, was added in an amount of 1 wt %, and nonionic polyoxyalkylene laurylether (material name: NL-DASH403, DKS Co., Ltd.) was added in an amount of 10 wt %. Further, in Comparative Example 4, an oleic acid, which is a fatty acid, was added in an amount of 10 wt %, and triethanolamine, which is amine, was added in an amount of 15 wt %.
  • Examples 1 and 19 and Comparative Examples 1 to 4 were respectively evaluated.
  • 6 items of kinematic viscosity, pH, permeability, lubricating properties, tool abrasion resistance, and washing properties were selected. The results are shown in Tables 1 to 3.
  • a kinematic viscosity was 0.95 mm 2 /s or more.
  • Example 1 in which the additive amount of the fatty acid with respect to amine is small, pH was 10 compared with Examples 2 to 4. From this, in a case where a fatty acid and amine are added, it is preferable to adjust the additive amount such that pH is within an appropriate range.
  • Permeability was evaluated by measuring surface tension. If surface tension is small, permeability into a gap between a tool and a processing subject is high. Surface tension was measured in an environment of 20.5° C. In Tables 1 to 3. “A” indicated that surface tension is 24 mN/m or less, “B” indicated that surface tension is 25 to 34 mN/m, and “C” indicated that surface tension is 35 mN/m or more.
  • Lubricating properties was evaluated by variation of friction coefficient.
  • “A” indicated that variation of friction coefficient is 0.02 or less
  • “C” indicated that variation of friction coefficient is 0.03 or more.
  • the variation of friction coefficient was obtained by measuring average friction coefficient with a tester using ball on plate and being calculated from the standard deviation ⁇ .
  • the measurement conditions are as follows.
  • Comparative Example 3 in which a polyoxyethylene polyoxypropylene reverse block, which is polyalkylene glycol, was used as a lubricating base, variation of friction coefficient was small, while in Comparative Examples 1, 2, 4 other than Comparative Example 3, the variation was large.
  • a hole was made in a processing subject with a tool, in actual.
  • the number of cases was counted where a hole with a predetermined diameter and a predetermined surface state was formed without abrasion of the tool.
  • “A” indicated that the number of holes continuously formed was 10 or more
  • “B” indicated that the number of holes continuously formed was 5 to 9
  • “C” indicated that the number of holes continuously formed was 4 or less.
  • washing properties after washing a tool and a processing subject, on which processing was performed while providing a solution for processing machines, with water for a predetermined time, presence or absence of stickiness was checked by touching the tool and the processing subject with a hand. “A” indicated a case where the solution for processing machines was not left and stickiness was not present on the surface of the tool or processing subject, and “C” indicated a case where the solution for processing machines was left and stickiness was present on the surface of the tool or processing subject.
  • the present invention is appropriately applicable to a solution for processing machines used at the time of processing a stacked material of a fiber reinforcement composite material for planes and/or a metal material.

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Abstract

A solution for processing machines includes a lubricating base including polyalkylene glycol, a fluorine-based surfactant or a cationic surfactant, and water. The lubricating base includes at least one of a polyoxyethylene/polyoxypropylene reverse block, an ethylenediamine polyoxyalkylene condensate, polyoxyethylene polyoxypropylene glycol, and an ethylene oxide propylene oxide polymer, as polyalkylene glycol.

Description

    TECHNICAL FIELD
  • The present invention relates to a solution for processing machines, which is used at the time of processing a stacked material of a fiber reinforcement composite material for planes and/or a metal material.
  • Priority is claimed on Japanese Patent Application No. 2017-103528, filed on May 25, 2017, the content of which is incorporated herein by reference.
    • BACKGROUND ART
  • When performing mechanical processing such as perforating, cutting, and grinding, tools such as a drill and an end mill that perform a predetermined mechanical processing are used. The tools are installed in a processing machine. The processing machine performs mechanical processing on a processing subject by rotating a tool around a central axis.
  • In a case where mechanical processing is performed using a tool in a processing machine, a solution for processing machines which is called a cutting oil and the like is provided between the tool and the processing subject. The solution for processing machines enhances processability by lubricating a gap between a tool and a processing subject and decreasing a frictional force generated between the tool and the processing subject. In addition, the solution for processing machines suppresses an increase in temperatures of the tool and the processing subject due to a frictional heat between the tool and the processing subject.
  • The solution for processing machines includes an oily solution for processing machines having an oil as a main component (for example, refer to Patent Document 1) and an aqueous solution for processing machines using a surfactant and a lubricating component by diluting thereof with water. The oily solution for processing machines is excellent in lubricating properties, compared with the aqueous solution for processing machines. The aqueous solution for processing machines is excellent in cooling properties, compared with the oily solution for processing machines. For this reason, depending on desired properties at the time of processing, among lubricating properties, cooling properties, and the like, the solution for processing machines to be used is selected.
  • In a case where the processing subject is a carbon fiber composite material, a method of using a solution depending thereon (for example, refer to Patent Document 2) is known. However, in a case where the processing subject becomes a stacked material including the carbon fiber composite material, processing surface accuracy becomes insufficient with the solution, and application of the solution to this processing becomes difficult.
  • In addition, in a case where the processing subject is a titanium material, as a processing technique, a technique of an emulsion type cutting oil solution (for example, refer to Patent Document 3) in which fatty acid ester, a mineral oil, and the like are mixed with one another is known.
    • CITATION LIST Patent Literature
  • [Patent Document 1] Japanese Unexamined Patent Application, First Publication No. 2008-163115
  • [Patent Document 2] Japanese Unexamined Patent Application, First Publication No. 2012-250341
  • [Patent Document 3] Japanese Unexamined Patent Application, First Publication No. 2011-111593
    • SUMMARY OF INVENTION Technical Problem
  • However, in the oil solution, in a case where a processing subject is made of a stacked material of a titanium material and a composite material, application of the oily solution to this processing is difficult due to problems of interlayer exfoliation, residues, and surface accuracy. In addition, depending on the processing content to be performed, if any one of the oily solution for processing machines and the aqueous solution for processing machines is selected, there is a case where all properties required for a solution for processing machines cannot be satisfied.
  • For example, in a state in which a member made of a carbon fiber reinforcement resin and the like and a metal material such as aluminum and a titanium alloy are stacked, in a case where mechanical processing such as perforating is performed, high lubricating properties, cooling properties, and washing properties are required.
  • In addition, after processing, in removing an oily solution for processing machines, washing using a solution and the like is necessary and labor is required.
  • The solution for processing machines most suitable for use at the time of processing a stacked material of a fiber reinforcement composite material for planes and/or a metal material does not exist at the present.
  • The present invention has been made in consideration of the circumstances and an object of the present invention is to provide a solution for processing machines having high lubricating properties, cooling properties, and washing properties which is used at the time of processing a stacked material of a fiber reinforcement composite material for planes and/or a metal material.
    • Solution to Problem
  • In order to solve the above problems, the present invention employs the following means.
  • In a first aspect of the present invention, a solution for processing machines includes a lubricating base including polyalkylene glycol; a fluorine-based surfactant or a cationic surfactant; and water.
  • According to such a composition, the solution for processing machines is made of an aqueous solution including a lubricating base including polyalkylene glycol and a fluorine-based surfactant or a cationic surfactant. Such a solution for processing machines exhibits high cooling properties while having high lubricating properties due to a lubricating base including polyalkylene glycol. In addition, due to the fluorine-based surfactant or the cationic surfactant and water, high washing properties are obtained.
  • In a second aspect of the present invention, the lubricating base in the first aspect includes at least one of a polyoxyethylene/polyoxypropylene reverse block, an ethylenediamine polyoxyalkylene condensate, polyoxyethylene polyoxypropylene glycol, and an ethylene oxide propylene oxide polymer, as polyalkylene glycol.
  • In a third aspect of the present invention, the fluorine-based surfactant in the first or second aspect includes at least one of a fluorine-containing group/hydrophilic group/lipophilic group-containing oligomer, perfluoroalkyl group-containing carboxylate, and perfluorobutane sulfonate.
  • In a fourth aspect of the present invention, the cationic surfactant in the first or second aspect includes at least one of octyldimethylethylanmmonium ethyl sulfate, stearyl dimethylhydroxyethylammonium paratoluenesulfonate, stearyl dimethylamninopropylanmine, didecyl dimethylanmonium chloride, and tetraalkylammonium carboxylate.
  • According to a fifth aspect of the present invention, in the first to fourth aspects, at least one fatty acid of isononanoic acid and nonanoic acid is further included.
  • According to a sixth aspect of the present invention, in the first to fifth aspects, at least one amine of triethanolamine and 1.3 bisaminocyclohexane is included.
  • According to a seventh aspect of the present invention, in the first to sixth aspects, the surface tension measured in an environment of 20.5° C. is 24 mN/m or less.
  • According to an eighth aspect of the present invention, in the first to seventh aspects, kinematic viscosity measured in an environment of 25° C. is 0.95 mm2/s or more.
  • According to a ninth aspect of the present invention, in the first to eighth aspects, pH is 6 to 9.
    • Advantageous Effects of Invention
  • According to a solution for processing machines according to the present invention, it is possible to have high lubricating properties, cooling properties, and washing properties.
    • BRIEF DESCRIPTION OF DRAWINGS
  • FIG. 1 is a perspective view showing an example of mechanical processing performed using a solution for processing machines according to an embodiment of the present invention.
    •  DESCRIPTION OF EMBODIMENTS
  • Hereinafter, a solution for processing machines according to an embodiment of the present invention will be described.
  • FIG. 1 is a perspective view showing an example of mechanical processing performed using a solution for processing machines according to an embodiment of the present invention.
  • As shown in FIG. 1, the solution for processing machines of the embodiment, for example, is used at the time of performing drilling processing with a tool 3 on a processing subject 1.
  • The processing subject 1 is, for example, made by stacking a first member 2A and a second member 2B.
  • The first member 2A is, for example, formed by a fiber reinforcement resin material formed of a reinforcement fiber such as carbon fiber and glass fiber and a resin such as an epoxy resin and a urethane resin.
  • The second member 2B is, for example, formed by a metal material such as titanium alloy, aluminum alloy, stainless alloy, and nickel alloy.
  • In addition, the first member 2A and the second member 2B can be, for example, formed by a ceramic material, a glass material, and the like.
  • Here, in the processing subject 1, combination of materials of the first member 2A and the second member 2B or shapes of the first member 2A and the second member 2B are not limited. For example, in members constituting planes, the first member 2A such as outer skin made of a fiber reinforcement resin material is fastened to the second member 2B such as a bracket made of a metal material, and thus in a state of stacking the first member 2A and the second member 2B, a hole 4 may be formed.
  • The tool 3 is, for example, a drill for boring the hole 4 in the processing subject 1. Depending on the processing content, the tool 3 may be an end mill, a cutter, various milling cutters, and the like, for example, in addition to the drill.
  • Such a tool 3 is installed in a processing head of a processing machine (not shown) and rotationally operates around a central axis of the tool 3.
  • In order to drill the processing subject 1 with the tool 3, the solution for processing machines is provided with respect to a processing portion in which the tool 3 is in contact with the processing subject 1. Provision of the solution for processing machines can be performed by a nozzle 6 through which the solution for processing machines is discharged or sprayed with respect to a contact portion between the tool 3 and the processing subject 1, for example. In addition, provision of the solution for processing machines can be performed through a liquid flow path 7 which is formed in the tool 3 and extends in a central axis direction of the tool 3. The liquid flow path 7 has an opening (not shown) in a tip end portion or am outer peripheral surface of the tool 3, and the solution for processing machines is discharged from the opening.
  • Subsequently, a solution for processing machines according to the present embodiment will be described.
  • The solution for processing machines includes a lubricating base including polyalkylene glycol, a fluorine-based surfactant or cationic surfactant, and water.
  • The lubricating base including polyalkylene glycol preferably includes at least one of polyoxyethlyene/polyoxypropylene reverse block, an ethylene diamine polyoxy alkylene condensate, polyoxyethylene polyoxypropylene glycol, and an ethylene oxide propylene oxide polymer.
  • Such a lubricating base preferably includes 5 to 95 wt % in the solution for processing machines.
  • A more preferable range of the amount of the lubricating base is 30 to 90 wt %.
  • The fluorine-based surfactant preferably includes at least one of a fluorine-containing group/hydrophilic group/lipophilic group-containing oligomer, perfluoroalkyl group-containing carboxylate, and perfluorobutane sulfonate.
  • The cationic surfactant preferably includes at least one of octyldimethylethylammonium ethyl sulfate, stearyl dimethylhydroxyethylammonium paratoluenesulfonate, stearyl dimethylaminopropylamine, didecyl dimethylanmonium chloride, and tetraalkylammonium carboxylate.
  • The fluorine-based surfactant or cationic surfactant preferably includes 0.1 to 15 wt %, for example in the solution for processing machines. A preferable range of the amount of the fluorine-based surfactant or cationic surfactant is 0.1 to 10 wt %.
  • The solution for processing machines may further include a fatty acid. The fatty acid preferably includes at least one of isononanoic acid and nonanoic acid.
  • In the solution for processing machines, 3 to 25 wt % of the fatty acid is preferably included, for example. A more preferable range of the amount of the lubricating base is 5 to 20 wt %.
  • In addition, the solution for processing machines may further include amine. The amine preferably includes at least one of triethanolamine and 1.3 bisaminocyclohexane.
  • In the solution for processing machines, 3 to 15 wt % of the amine is preferably included. A more preferable range of the amount of the amine is 5 to 10 wt %.
  • The solution for processing machines is formed by dissolving the above-described materials in water. That is, in the solution for processing machines, the residue of the above-described materials is water.
  • The above-described solution for processing machines preferably lowers surface tension to enhance permeability into a processing portion. The solution for processing machines is preferably generated such that surface tension measured in an environment of 20.5° C. is 24 mN/m or less, for example.
  • By lowering surface tension of the solution for processing machines, it is possible to facilitate invasion into a boundary friction point between a tool and a processing subject. With this, in the vicinity of a generation source of frictional heat, it is possible to efficiently absorb the frictional heat from the tool and the processing subject.
  • In addition, it is preferable that kinematic viscosity of the solution for processing subject becomes high. The solution for processing machines is preferably such that the kinematic viscosity measured in an environment of 25° C. is 0.95 mm2/s or more, for example.
  • By enhancing kinematic viscosity of the solution for processing machines, a film thickness of the solution for processing machines between the tool and the processing subject is ensured. With this, it is possible to suppress direct contact of the tool and the processing subject and stabilize friction generated in the processing portion.
  • In addition, the solution for processing machines is preferably such that variation of friction coefficient is small. Due to variation of friction coefficient, a change in a friction amount in the tool surface becomes large, and abnormal abrasion such as boundary abrasion is caused. For this reason, the solution for processing machines is preferably such that the variation of the friction coefficient with a metal material is generated to be 0.010 to 0.018.
  • By suppressing the variation of the friction coefficient due to the solution for processing machines, it is possible to suppress abrasion of the tool and to enhance processing efficiency.
  • In addition, in a case where the processing subject 1 is formed by using an aluminum alloy, for example, the solution for processing machines preferably has a neutral pH of 6 to 9. With this, the aluminum alloy is stabilized.
  • In addition, such a solution for processing machines is formed by a water-soluble hydrophilic material. With this, after processing the processing subject 1 by using the solution for processing machines, it is possible to easily wash the solution for processing machines using water. Therefore, for example, it is not necessary to perform washing by using a solution such as methylethyl ketone, and it is possible to mitigate environmental impact and load on a worker.
  • The above-described solution for processing machines is an aqueous solution including a lubricating base including polyalkylene glycol and a fluorine-based surfactant or cationic surfactant. Such a solution for processing machines exhibits high cooling properties while having high lubricating properties. In addition, since the solution for processing machines is water-soluble, after processing, it is possible to easily perform washing by not using a solution but flushing with water.
  • In the embodiment, as the lubricating base including polyalkylene glycol and the fluorine-based surfactant or cationic surfactant, which constitute the solution for processing machines, a plurality of substances are specifically exemplified, respectively, and only one kind of substances may be used, or two or more kinds of substances may be used in combination, respectively.
  • In addition, it is also possible to generate a solution for processing machines by adding additives other than the above-described additives.
  • The present invention is not limited to the above-described embodiment, and includes embodiments to which various modifications are added within a range not departing the gist of the present invention. That is, specific shapes or constitutions exemplified in the embodiment are merely examples and can be appropriately modified.
  • For example, in the embodiment, the solution for processing machines is such that, as shown in FIG. 1, perforating processing is performed with the tool 3 on the processing subject 1 in which the first member 2A made of a fiber reinforcement resin material and the second member 2B made of a metal material are stacked, but is not limited thereto. That is, the material or the use of the processing subject 1, the amount of processing with the tool 3, and the like may be different from those shown in the embodiment.
  • Subsequently, examples of the solution for processing machines according to the present invention will be described.
    • EXAMPLES Examples 1 to 19
  • A solution for processing machines was generated by using materials shown in Tables 1 and 2. Here, the number of each substance in tables indicates the amount (wt %) of the solution for processing machines.
  • TABLE 1
    Examples
    Substance name 1 2 3 4 5
    Lubricating Oily agent Paraffin oil
    base Trimethylolpropane triolate
    PAG Polyoxyethylene polyoxypropylene 30 30 30 30 10
    (polyalkylene reverse block
    glycol) Ethylenediamine polyoxyalkylene
    condensate
    Polyoxyethylene polyoxypropylene
    glycol
    Ethylene oxide propylene oxide
    polymer
    Surfactant Fluorine- Fluorine-containing group/ 1 1
    based hydrophilic group/lipophilic
    group-containing oligomer
    Perfluoroalkyl group-containing
    carboxylate
    Perfluorobutane sulfonate
    Cationic Octyldimethylethylammonium ethyl 1 1 1
    sulfate
    Stearyl dimethylhydroxyethylammonium
    paratoluenesulfonate
    Stearyl dimethylaminopropylamine
    Didecyl dimethylammonium chloride
    Tetraalkylammonium carboxylate
    Anionic Alkylbenzene sulfonate
    Nonionic Polyoxyalkylene lauryl ether
    Polyoxyethylene sorbitan monooleate
    Fatty acid Acid Oleic acid
    Isononanoic acid 20 20
    Nonanoic acid 5 20
    Condensed castor oil fatty acid
    Amine Alkali Triethanolamine 5 5 5 5
    Diethanolamine
    Monoisopropanolamine
    1.3 Bisaminocyclohexane 10 10 10 10
    Water Pure water Residue Residue Residue Residue Residue
    Physical Kinematic viscosity (mm2/s · 25° C.) 0.99 0.99 0.98 0.99 0.96
    properties pH 10.0 8.7 8.5 8.7 8.0
    Permeability A A A A A
    Lubricating properties A A A A A
    Tool abrasion resistance A A A A A
    Washing properties A A A A A
    Examples
    Substance name
    6 7 8 9 10
    Lubricating Oily agent Paraffin oil
    base Trimethylolpropane triolate
    PAG Polyoxyethylene polyoxypropylene 30 70 90
    (polyalkylene reverse block
    glycol) Ethylenediamine polyoxyalkylene 30
    condensate
    Polyoxyethylene polyoxypropylene 30
    glycol
    Ethylene oxide propylene oxide
    polymer
    Surfactant Fluorine- Fluorine-containing group/
    based hydrophilic group/lipophilic
    group-containing oligomer
    Perfluoroalkyl group-containing
    carboxylate
    Perfluorobutane sulfonate
    Cationic Octyldimethylethylammonium ethyl 1 1 1 1 1
    sulfate
    Stearyl dimethylhydroxyethylammonium
    paratoluenesulfonate
    Stearyl dimethylaminopropylamine
    Didecyl dimethylammonium chloride
    Tetraalkylammonium carboxylate
    Anionic Alkylbenzene sulfonate
    Nonionic Polyoxyalkylene lauryl ether
    Polyoxyethylene sorbitan monooleate
    Fatty acid Acid Oleic acid
    Isononanoic acid
    Nonanoic acid
    Condensed castor oil fatty acid
    Amine Alkali Triethanolamine
    Diethanolamine
    Monoisopropanolamine
    1.3 Bisaminocyclohexane
    Water Pure water Residue Residue Residue Residue Residue
    Physical Kinematic viscosity (mm2/s · 25° C.) 0.97 1.01 1.05 0.98 0.97
    properties pH 8.1 8.6 8.2 8.5 8.2
    Permeability A A A A A
    Lubricating properties A A A A A
    Tool abrasion resistance A A A A A
    Washing properties A A A A A
  • TABLE 2
    Examples
    Substance name 11 12 13 14 15
    Lubricating Oily agent Paraffin oil
    base Trimethylolpropane triolate
    PAG Polyoxyethylene polyoxypropylene 30 30 30 30
    (polyalkylene reverse block
    glycol) Ethylenediamine polyoxyalkylene
    condensate
    Polyoxyethylene polyoxypropylene
    glycol
    Ethylene oxide propylene oxide 30
    polymer
    Surfactant Fluorine- Fluorine-containing group/
    based hydrophilic group/lipophilic
    group-containing oligomer
    Perfluoroalkyl group-containing
    carboxylate
    Perfluorobutane sulfonate
    Cationic Octyldimethylethylammonium ethyl 1
    sulfate
    Stearyl dimethylhydroxyethylammonium 1
    paratoluenesulfonate
    Stearyl dimethylaminopropylamine 1
    Didecyl dimethylammonium chloride 1
    Tetraalkylammonium carboxylate 1
    Anionic Alkylbenzene sulfonate
    Nonionic Polyoxyalkylene lauryl ether
    Polyoxyethylene sorbitan monooleate
    Fatty acid Acid Oleic acid
    Isononanoic acid
    Nonanoic acid
    Condensed castor oil fatty acid
    Amine Alkali Triethanolamine
    Diethanolamine
    Monoisopropanolamine
    1.3 Bisaminocyclohexane
    Water Pure water Residue Residue Residue Residue Residue
    Physical Kinematic viscosity (mm2/s · 25° C.) 0.96 0.97 0.97 0.97 0.97
    properties pH 8.2 8.2 8.1 8.2 7.9
    Permeability A A A A A
    Lubricating properties A A A A A
    Tool abrasion resistance A A A A A
    Washing properties A A A A A
    Examples
    Substance name 16 17 18 19
    Lubricating Oily agent Paraffin oil
    base Trimethylolpropane triolate
    PAG Polyoxyethylene polyoxypropylene 30 30 30 30
    (polyalkylene reverse block
    glycol) Ethylenediamine polyoxyalkylene
    condensate
    Polyoxyethylene polyoxypropylene
    glycol
    Ethylene oxide propylene oxide
    polymer
    Surfactant Fluorine- Fluorine-containing group/
    based hydrophilic group/lipophilic
    group-containing oligomer
    Perfluoroalkyl group-containing 1
    carboxylate
    Perfluorobutane sulfonate 1
    Cationic Octyldimethylethylammonium ethyl
    sulfate
    Stearyl dimethylhydroxyethylammonium
    paratoluenesulfonate
    Stearyl dimethylaminopropylamine
    Didecyl dimethylammonium chloride
    Tetraalkylammonium carboxylate 0.1 10
    Anionic Alkylbenzene sulfonate
    Nonionic Polyoxyalkylene lauryl ether
    Polyoxyethylene sorbitan monooleate
    Fatty acid Acid Oleic acid
    Isononanoic acid
    Nonanoic acid
    Condensed castor oil fatty acid
    Amine Alkali Triethanolamine
    Diethanolamine
    Monoisopropanolamine
    1.3 Bisaminocyclohexane
    Water Pure water Residue Residue Residue Residue
    Physical Kinematic viscosity (mm2/s · 25° C.) 0.96 0.97 0.97 0.98
    properties pH 8.0 7.7 8.0 8.0
    Permeability A A A A
    Lubricating properties A A A A
    Tool abrasion resistance A A A A
    Washing properties A A A A
  • In Examples 1 to 19, as a lubricating base, one of polyoxyethylene/polyoxypropylene reverse block (material (product) name: ADEKA Pluronic 17R4, manufactured by ADEKA), ethylenediamine polyoxyalkylene condensate (material name: ADEKA Pluronic TR-913R, manufactured by ADEKA), polyoxyethylene polyoxypropylene glycol (material name: EPAN450, manufactured by DKS Co., Ltd.), and ethylene oxide propylene oxide polymer (material name: Synative RPE1720, manufactured by BASF), which is polyalkylene glycol, was used.
  • In addition, in Examples 1 to 4, 6, and 9 to 19, the amount of the lubricating base was set as 30 wt %, and in Examples 5, 7, and 8, the amount of the lubricating base was differentiated as 10, 70, and 90 wt %.
  • In addition, in Examples 1, 2, 18, and 19, as a surfactant, one of fluorine-containing group/hydrophilic group/lipophilic group-containing oligomer (material name: F477, manufactured by DIC Corporation), perfluoroalkyl group-containing carboxylate (material name: F410, manufactured by DIC Corporation), and perfluorobutane sulfonate (material name: FC-4430, manufactured by 3M Corporation), which is a fluorine-based surfactant, was included.
  • In Examples 3 to 17, as a surfactant, one of octyldimethylethylammonium ethyl sulfate (material name: ES-O, manufactured by DKS Co., Ltd.), stearyl dimethylhydroxyethylammonium paratoluenesulfonate (material name: Catiogen D2, manufactured by DKS Co., Ltd.), stearyl dimethylaminopropylamine (material name: Catiogen SPA, manufactured by DKS Co., Ltd.), didecyl dimethylammonium chloride (material name: Pionin B0011, manufactured by TAKEMOTO Oil and Fat Co., Ltd.) and tetraalkylanunonium carboxylate (material name: Osmoline DA50, manufactured by Sanyo Chemical Industries Ltd.), which is a cationic surfactant, was used.
  • An additive amount of the surfactant was 1 wt % in Examples 1 to 15, 18, and 19, and was 0.1 and 10 wt %, respectively, in Examples 16 and 17.
  • In addition, in Examples 1 to 4, one of isononanoic acid and nonanoic acid, which is a fatty acid (acid), was added. The additive amount of the fatty acid was 5 wt % in Example 1 and was 20 wt % in Examples 2 to 4.
  • In addition, in Examples 1 to 4, triethanolamine and 1.3 bisaminocyclohexane, which are amine (alkali), were added. The additive amount of triethanolamine was 5 wt % and the additive amount of 1.3 bisaminocyclohexane was 10 wt %.
  • In addition, in Examples 1 to 19, the residue of the substances was pure water, and the substances were mixed with pure water.
    • Comparative Examples 1 to 4
  • For comparison, Comparative Examples 1 to 4 as shown in Table 3 were used.
  • TABLE 3
    Comparative Examples
    Substance name 1 2 3 4
    Lubricating Oily agent Paraffin oil 40
    base Trimethylolpropane triolate 15 15
    PAG Polyoxyethylene polyoxypropylene 30
    (polyalkylene reverse block
    glycol) Ethylenediamine polyoxyalkylene
    condensate
    Polyoxyethylene polyoxypropylene
    glycol
    Ethylene oxide propylene oxide
    polymer
    Surfactant Fluorine- Fluorine-containing group/ 1
    based hydrophilic group/lipophilic
    group-containing oligomer
    Perfluoroalkyl group-containing
    carboxylate
    Perfluorobutane sulfonate
    Cationic Octyldimethylethylammonium ethyl 1
    sulfate
    Stearyl dimethylhydroxyethylammonium
    paratoluenesulfonate
    Stearyl dimethylaminopropylamine
    Didecyl dimethylammonium chloride
    Tetraalkylammonium carboxylate
    Anionic Alkylbenzene sulfonate
    Nonionic Polyoxyalkylene lauryl ether 10 10 10
    Polyoxyethylene sorbitan monooleate
    Fatty acid Acid Oleic acid 10
    Isononanoic acid
    Nonanoic acid 5
    Condensed castor oil fatty acid 15 15 5
    Amine Alkali Triethanolamine 5 15
    Diethanolamine
    Monoisopropanolamine 15 15
    1.3 Bisaminocyclohexane 10
    Water Pure water Residue Residue Residue Residue
    Physical Kinematic viscosity (mm2/s · 25° C.) 0.94 0.94 0.98 0.95
    properties pH 10.4 10.4 9.7 9.4
    Permeability B B C B
    Lubricating properties C C A C
    Tool abrasion resistance C B C C
    Washing properties C C C C
  • In Comparative Examples 1 and 2, as a lubricating base, trimethylolpropane triolate, which is an oily agent, was used. The additive amount was 15 wt %. In Comparative Examples 1 and 2, further, as a surfactant, nonionic polyoxyalkylene laurylether (material name: NL-DASH403, manufactured by DKS Co., Ltd.) was added in an amount of 10 wt %, a condensed castor oil fatty acid, which is a fatty acid, was added in an amount of 15 wt %, and monoisopropanolamine, which is amine, was added in an amount of 15 wt %. In addition, in Example 2, as a surfactant, a fluorine-containing group/hydrophilic group/lipophilic group-containing oligomer, which is a fluorine-based surfactant, was added in an amount of 1 wt %.
  • In Comparative Example 3, as a lubricating base, similar to Examples 1 to 8 and 12 to 19, a polyoxyethylene polyoxypropylene reverse block (material name: ADEKA Pluronic 17R4, manufactured by ADEKA), which is polyalkylene glycol, was used. The additive amount was 30 wt %. In Comparative Example 3, a surfactant was not added, a nonanoic acid, which is a fatty acid, was added in an amount of 5 wt %, a condensed castor oil fatty acid was added in an amount of 5 wt %, triethanolamine, which is amine (alkali), was added in an amount of 5 wt %, and 1.3 bisamninocyclohexane was added in an amount of 10 wt %.
  • In Comparative Example 4, as a lubricating base, paraffin, which is an oily agent, was used. The additive amount was 40 wt %. In Comparative Example 4, as a surfactant, one of octyldimethylethylammonium ethyl sulfate (material name: ES-O, DKS Co., Ltd.), which is a cationic surfactant, was added in an amount of 1 wt %, and nonionic polyoxyalkylene laurylether (material name: NL-DASH403, DKS Co., Ltd.) was added in an amount of 10 wt %. Further, in Comparative Example 4, an oleic acid, which is a fatty acid, was added in an amount of 10 wt %, and triethanolamine, which is amine, was added in an amount of 15 wt %.
  • In addition, in Comparative Examples 1 to 4, the residue of the substances was pure water, and the substances were mixed with pure water.
  • (Evaluation of Physical Properties of Examples and Comparative Examples)
  • Subsequently, physical properties of Examples 1 and 19 and Comparative Examples 1 to 4 were respectively evaluated. As physical properties used in evaluation, 6 items of kinematic viscosity, pH, permeability, lubricating properties, tool abrasion resistance, and washing properties were selected. The results are shown in Tables 1 to 3.
  • Kinematic viscosity was measured in an environment of 25° C.
  • As a result, in any of Examples 1 to 19, a kinematic viscosity was 0.95 mm2/s or more.
  • On the contrary, in Comparative Example 3 in which a polyoxyethylene polyoxypropylene reverse block, which is polyalkylene glycol, was used as a lubricating base, a kinematic viscosity was 0.98 mm2/s. However, in Comparative Examples 1, 2, and 4 in which trimethylolpropane triolate, which is an oily agent, and paraffin oil were used as lubricating bases, a kinematic viscosity was less than 0.95 mm2/s.
  • In any of Examples 1 to 19 and Comparative Examples 1 to 4, pH was measured by diluting the solution for processing machines produced 20 times.
  • As a result, in any of Examples 2 to 19, pH was 7.7 to 8.7, which was neutral. Among Examples 1 to 4 in which a fatty acid and amine are added, in Example 1 in which the additive amount of the fatty acid with respect to amine is small, pH was 10 compared with Examples 2 to 4. From this, in a case where a fatty acid and amine are added, it is preferable to adjust the additive amount such that pH is within an appropriate range.
  • Permeability was evaluated by measuring surface tension. If surface tension is small, permeability into a gap between a tool and a processing subject is high. Surface tension was measured in an environment of 20.5° C. In Tables 1 to 3. “A” indicated that surface tension is 24 mN/m or less, “B” indicated that surface tension is 25 to 34 mN/m, and “C” indicated that surface tension is 35 mN/m or more.
  • As a result, it was confirmed that, in any of Examples 1 to 19, surface tension is 24 mN/m or less and permeability is favorable.
  • On the contrary, in any of Comparative Examples 1 to 4, surface tension was large, and permeability was low compared to Examples 1 to 19.
  • Lubricating properties was evaluated by variation of friction coefficient. In Tables 1 to 3, “A” indicated that variation of friction coefficient is 0.02 or less, and “C” indicated that variation of friction coefficient is 0.03 or more.
  • Here, the variation of friction coefficient was obtained by measuring average friction coefficient with a tester using ball on plate and being calculated from the standard deviation σ.
  • The measurement conditions are as follows.
  • Plate: Ti6a14V (plate material of 28×18×0.1 mm)
  • Ball: SUJ-23/16 inches
  • Load: 500 g
  • Period: 30 times/minutes
  • Reciprocating stroke: 5 mm
  • Test time: 10 minutes
  • Temperature: room temperature (15° C. to 25° C.)
  • Sample concentration: 5 wt % (diluted with water)
  • Sample amount: 5 ml
  • As a result, it was confirmed that, in any of Examples 1 to 19, variation of friction coefficient was 0.02 or less, and lubricating properties were favorable.
  • On the contrary, in Comparative Example 3 in which a polyoxyethylene polyoxypropylene reverse block, which is polyalkylene glycol, was used as a lubricating base, variation of friction coefficient was small, while in Comparative Examples 1, 2, 4 other than Comparative Example 3, the variation was large.
  • Regarding tool abrasion resistance, a hole was made in a processing subject with a tool, in actual. When a hole was sequentially and continuously made with the same tool, the number of cases was counted where a hole with a predetermined diameter and a predetermined surface state was formed without abrasion of the tool. In Tables 1 to 3, “A” indicated that the number of holes continuously formed was 10 or more, “B” indicated that the number of holes continuously formed was 5 to 9, and “C” indicated that the number of holes continuously formed was 4 or less.
  • As a result, in any of Examples 1 to 19, it was possible to continuously process and form 10 or more holes, and thus it was possible to realize high tool abrasion resistance by using a solution for processing machines.
  • On the contrary, in any of Comparative Examples 1 to 4, it was possible to continuously form only 9 or less holes.
  • Regarding washing properties, after washing a tool and a processing subject, on which processing was performed while providing a solution for processing machines, with water for a predetermined time, presence or absence of stickiness was checked by touching the tool and the processing subject with a hand. “A” indicated a case where the solution for processing machines was not left and stickiness was not present on the surface of the tool or processing subject, and “C” indicated a case where the solution for processing machines was left and stickiness was present on the surface of the tool or processing subject.
  • As a result, in any of Examples 1 to 19, stickiness was not left, and it was possible to remove a solution for processing machines by only performing washing with water.
  • On the contrary, in any of Comparative Examples 1 to 4, stickiness was left, and it was not possible to remove a solution for processing machines by only performing washing with water.
  • From the above-described evaluation of physical properties, in Examples 1 to 19, it was confirmed that all of physical properties of kinematic viscosity, pH, permeability, lubricating properties, tool abrasion resistance, and washing properties are favorable.
    • INDUSTRIAL APPLICABILITY
  • The present invention is appropriately applicable to a solution for processing machines used at the time of processing a stacked material of a fiber reinforcement composite material for planes and/or a metal material.
    • REFERENCE SIGNS LIST
      • 1 Processing subject
      • 2A First member
      • 2B Second member
      • 3 Tool
      • 4 Hole
      • 6 Nozzle
      • 7 Liquid flow path

Claims (9)

1. A solution for processing machines used at the time of processing a stacked material of a fiber reinforcement composite material and/or a metal material, the solution for processing machines, comprising:
a lubricating base including polyalkylene glycol;
a fluorine-based surfactant or a cationic surfactant;
water;
at least one fatty acid of isononanoic acid and nonanoic acid;
at least one amine of triethanolamine and 1.3 bisaminocyclohexane; and
the solution for processing machines comprises 5 to 95 wt % of the lubricating base, 0.1 to 15 wt % of the surfactant, 3 to 25 wt % of the fatty acid, and 3 to 15 wt % of the amine.
2. The solution for processing machines according to claim 1,
wherein the lubricating base includes at least one of a polyoxyethylene/polyoxypropylene reverse block, an ethylenediamine polyoxyalkylene condensate, polyoxyethylene polyoxypropylene glycol, and an ethylene oxide propylene oxide polymer, as polyalkylene glycol.
3. The solution for processing machines according to claim 1,
wherein the fluorine-based surfactant includes at least one of a fluorine-containing group/hydrophilic group/lipophilic group-containing oligomer, perfluoroalkyl group-containing carboxylate, and perfluorobutane sulfonate.
4. The solution for processing machines according to claim 1,
wherein the cationic surfactant includes at least one of octyldimethylethylammonium ethyl sulfate, stearyl dimethylhydroxyethylammonium paratoluenesulfonate, stearyl dimethylaminopropylamine, didecyl dimethylammonium chloride, and tetraalkylammonium carboxylate.
5. (canceled)
6. (canceled)
7. The solution for processing machines according to claim 1,
wherein a surface tension measured in an environment of 20.5° C. is 24 mN/m or less.
8. The solution for processing machines according to claim 1,
wherein a kinematic viscosity measured in an environment of 25° C. is 0.95 mm2/s or more.
9. The solution for processing machines according to claim 1,
wherein pH is 6 to 9.
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