WO2021143804A1 - 水溶性金属加工液组合物及其使用方法 - Google Patents

水溶性金属加工液组合物及其使用方法 Download PDF

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WO2021143804A1
WO2021143804A1 PCT/CN2021/072020 CN2021072020W WO2021143804A1 WO 2021143804 A1 WO2021143804 A1 WO 2021143804A1 CN 2021072020 W CN2021072020 W CN 2021072020W WO 2021143804 A1 WO2021143804 A1 WO 2021143804A1
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component
water
fluid composition
metalworking fluid
soluble metalworking
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PCT/CN2021/072020
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English (en)
French (fr)
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张媛
野口贤郎
浅田佳史
服部秀章
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出光兴产株式会社
出光润滑油(中国)有限公司
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Application filed by 出光兴产株式会社, 出光润滑油(中国)有限公司 filed Critical 出光兴产株式会社
Priority to JP2022543687A priority Critical patent/JP2023510939A/ja
Priority to CN202180021165.5A priority patent/CN115210347A/zh
Priority to KR1020227028218A priority patent/KR20230004434A/ko
Priority to US17/758,928 priority patent/US20230055652A1/en
Publication of WO2021143804A1 publication Critical patent/WO2021143804A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
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Definitions

  • the present invention relates to a water-soluble metalworking fluid composition and a method of use thereof.
  • the present invention relates to a water-soluble metalworking fluid composition that can be applied to cutting processing or grinding processing to improve machine fouling while maintaining workability, and a method of use thereof.
  • Metal processing oil In the field of metal processing such as cutting and grinding, metal processing oil is used for the purpose of improving processing efficiency, suppressing friction between the material to be processed and the tool used to process the material, extending the life of the tool, and removing swarf. Agent.
  • Metalworking oils include oils (non-water-soluble) mainly composed of oils such as mineral oil, animal and vegetable oils, and synthetic oils, and oils that are compounded with surface-active compounds to impart water solubility to the oil. (Water-soluble). For reasons such as effective use of resources and prevention of fires, in recent years, water-soluble oils (referred to as water-soluble metalworking oils) have been used.
  • Patent Document 1 it is described that fine-grained chips and high-viscosity rust inhibitor components adhere as dirt to the material to be cut and the machine tool.
  • Patent Document 1 it is described that a hydroxyaliphatic carboxylic acid having 2 to 8 carbon atoms is used to impart a stain preventing effect (paragraph 0014).
  • Patent Document 1 JP 2011-79956 A.
  • the present inventors discovered for the first time that in metal processing oils, when the amount of fatty acid or hydroxy fatty acid is large, scum is likely to be generated.
  • the reason for this is that, for example, the excessive fatty acid forms a salt with the amine contained in the working fluid, which is dissolved in water, and reacts with Ca ions and Mg ions in the water to generate scum.
  • the object of the present invention relates to a water-soluble metalworking fluid composition that maintains workability while improving mechanical fouling and a method of use thereof.
  • a water-soluble metalworking fluid composition that maintains workability while improving mechanical fouling and a method of use thereof.
  • specific components (A), component (B) and component (C) at a specific mixing ratio, which is a feature of the present invention, even if it does not contain a hydroxyaliphatic with 2 to 8 carbon atoms
  • Carboxylic acid can also improve scum that causes mechanical fouling and maintain workability.
  • a water-soluble metalworking fluid composition characterized by containing the following component (A), component (B) and component (C),
  • Component (A) is a fatty acid with 9-11 carbon atoms
  • Component (B) is a component containing unsaturated fatty acids with 16 to 22 carbon atoms
  • Component (C) is a polymeric fatty acid with an acid value of 10 to 200 mgKOH/g,
  • Component (A) is 1-20% by mass based on the total amount of component (A), component (B) and component (C),
  • Component (B) is 30-60% by mass based on the total amount of component (A), component (B) and component (C),
  • the component (C) is 35 to 55% by mass based on the total amount of the component (A), the component (B), and the component (C).
  • the water-soluble metalworking fluid composition according to any one of [1] to [12] above, which is characterized by further containing an anticorrosive agent, an antitarnishing agent, a surfactant, and a metal deactivation agent. At least one of an agent, a rust inhibitor, a defoamer, and a bactericide.
  • a method of using a water-soluble metalworking fluid composition characterized in that the water-soluble metalworking fluid composition according to any one of [1] to [13] is diluted with water to make it water-soluble during use
  • the concentration of the sex metalworking fluid composition is 3% by volume or more, and it is used in metalworking.
  • a method for metal processing wherein a metal material is processed by using the water-soluble metalworking fluid composition according to any one of [1] to [13].
  • a method for preparing a water-soluble metalworking fluid composition wherein the following component (A), component (B), and component (C) are blended to form the following blending amount,
  • Component (A) is a fatty acid with 9-11 carbon atoms
  • Component (B) is a component containing unsaturated fatty acids with 16 to 22 carbon atoms
  • Component (C) is a polymeric fatty acid with an acid value of 10 to 200 mgKOH/g,
  • Component (A) is 1-20% by mass based on the total amount of component (A), component (B) and component (C),
  • Component (B) is 30-60% by mass based on the total amount of component (A), component (B) and component (C),
  • the component (C) is 35 to 55% by mass based on the total amount of the component (A), the component (B), and the component (C).
  • a water-soluble metalworking fluid composition prepared by the method for preparing a water-soluble metalworking fluid composition described in [16].
  • component (A), component (B), and component (C) by blending specific component (A), component (B), and component (C) at a specific compounding ratio, even if hydroxyaliphatic carboxylic acid having 2 to 8 carbon atoms is not included, floating can be improved. Slag (which is the cause of mechanical fouling), and the workability can be maintained.
  • FIG. 1 is a diagram showing the evaluation results of the detergency of the water-soluble metalworking fluid composition of Example 1.
  • FIG. 2 is a diagram showing the evaluation results of the detergency of the water-soluble metalworking fluid composition of Comparative Example 1.
  • FIG. 2 is a diagram showing the evaluation results of the detergency of the water-soluble metalworking fluid composition of Comparative Example 1.
  • FIG. 3 is a diagram showing the evaluation results of the detergency of the water-soluble metalworking fluid composition of Example 2.
  • FIG. 4 is a diagram showing the evaluation results of the detergency of the water-soluble metalworking fluid composition of Comparative Example 2.
  • FIG. 5 is a diagram showing the evaluation results of the detergency of the water-soluble metalworking fluid composition of Example 3.
  • FIG. 6 is a diagram showing the evaluation results of the detergency of the water-soluble metalworking fluid composition of Comparative Example 3.
  • FIG. 6 is a diagram showing the evaluation results of the detergency of the water-soluble metalworking fluid composition of Comparative Example 3.
  • composition contains the following component (A), component (B), and component (C).
  • the total content of component (A), component (B), and component (C) in the water-soluble metalworking fluid composition of the present invention is 7% by mass or more based on the total composition, and preferably 10 Mass% or more, more preferably 14% by mass or more.
  • the total content of component (A), component (B) and component (C) in the water-soluble metalworking fluid composition of the present invention is 30% by mass or less, preferably 26% based on the total composition. % By mass or less, more preferably 22% by mass or less.
  • the total content of component (A), component (B) and component (C) in the water-soluble metalworking fluid composition of the present invention is 15% by mass based on the total composition. Or 21.1% by mass.
  • the component (A) in the water-soluble metalworking fluid composition of the present invention is a fatty acid having 9 to 11 carbon atoms. This component (A) is related to mechanical fouling.
  • the fatty acid having 9 to 11 carbon atoms of the aforementioned component (A) is preferably a fatty acid having 10 carbon atoms.
  • the fatty acid having 9 to 11 carbon atoms of the aforementioned component (A) may be a straight chain fatty acid having 9 to 11 carbon atoms or a branched fatty acid having 9 to 11 carbon atoms.
  • branched fatty acids having 9 to 11 carbon atoms are preferable.
  • the fatty acid having 9 to 11 carbon atoms of the aforementioned component (A) may be a saturated fatty acid or an unsaturated fatty acid, and is preferably a saturated fatty acid.
  • the fatty acid having 9 to 11 carbon atoms of the component (A) includes, for example, n-nonanoic acid, isononanoic acid, n-decanoic acid, isodecanoic acid, neodecanoic acid, n-undecanoic acid, and isundecanoic acid.
  • These components (A) may be used individually by 1 type, and may be used in combination of 2 or more types arbitrarily.
  • the component (A) in the water-soluble metalworking fluid composition of the present invention is 1-20% by mass, preferably 3-18% by mass based on the total amount of component (A), component (B) and component (C) %, more preferably 5 to 15% by mass, particularly preferably 7 to 11% by mass.
  • the blending amount of the aforementioned component (A) is less than 1% by mass, the stability of the stock solution and the stability of the diluted solution deteriorate.
  • the compounding amount of the aforementioned component (A) exceeds 20% by mass, machine fouling occurs.
  • the component (A) in the water-soluble metalworking fluid composition of the present invention is about 8.05 mass based on the total amount of component (A), component (B) and component (C) %, about 8.06% by mass, or 10% by mass.
  • the compounding amount of the component (A) in the water-soluble metalworking fluid composition of the present invention is 0.05 to 4.0% by mass based on the total composition, preferably 0.1 to 3.5% by mass, more preferably 0.5 to 2.5% by mass It is particularly preferably 1 to 2% by mass.
  • the blending amount of the aforementioned component (A) is less than 0.05% by mass, the stability of the stock solution and the stability of the diluted solution deteriorate.
  • the compounding amount of the aforementioned component (A) exceeds 4.0% by mass, machine fouling occurs.
  • the compounding amount of the component (A) in the water-soluble metalworking fluid composition of the present invention is 1.5% by mass or 1.7% by mass based on the total composition.
  • the acid value of the component (A) in the water-soluble metalworking fluid composition of the present invention is 200 mgKOH/g to 500 mgKOH/g, preferably 250 mgKOH/g to 400 mgKOH/g, and more preferably 300 mgKOH/g to 350 mgKOH/g, particularly preferably 310 mgKOH/g to 330 mgKOH/g.
  • the acid value of the component (A) in the water-soluble metalworking fluid composition of the present invention is 320 mgKOH/g.
  • the acid value is the value measured according to ASTM D664 [mgKOH/g].
  • the component (B) in the water-soluble metalworking fluid composition of the present invention contains an unsaturated fatty acid having 16 to 22 carbon atoms.
  • the iodine value of this unsaturated fatty acid is 50-200, Preferably it is 100-150, More preferably, it is 120-135.
  • the iodine value is a value measured in accordance with ASTM D 1959.
  • the unsaturated fatty acid is 50 to 100% by mass, preferably 60 to 95% by mass, and more preferably 70 to 90% by mass.
  • the unsaturated fatty acid is 80% by mass or more based on the total amount of the component (B). It should be noted that when an excessive amount of saturated fatty acid having 16 to 22 carbon atoms is contained, scum is likely to be generated, which is not good.
  • This component (B) is blended with the following component (C) to maintain the workability of the water-soluble metalworking fluid composition in a well-balanced manner, while maintaining the stability of the water-soluble metalworking fluid composition and improving mechanical fouling .
  • the unsaturated fatty acids with 16-22 carbon atoms of the aforementioned component (B) if the number of carbon atoms is less than 16, the emulsification stability of the water-soluble metalworking fluid composition will deteriorate, and if the number of carbon atoms is more than 22 , The emulsification stability of the water-soluble metalworking fluid composition deteriorates, and there is a fear of mechanical fouling.
  • the unsaturated fatty acid having 16 to 22 carbon atoms of the aforementioned component (B) is preferably an unsaturated fatty acid having 18 carbon atoms.
  • the unsaturated fatty acid having 16 to 22 carbon atoms of the aforementioned component (B) includes, for example, palmitoleic acid, oleic acid, linoleic acid, linolenic acid, docosadienoic acid, elaidic acid, and erucic acid.
  • the unsaturated fatty acid is preferably oleic acid and/or linoleic acid.
  • These components (B) may be used individually by 1 type, and may be used in combination of 2 or more types arbitrarily.
  • the aforementioned component (B) is a rice bran oil fatty acid containing 80% by mass or more of unsaturated fatty acids with 18 carbon atoms (45% by mass or more of oleic acid and 35% by mass of linoleic acid).
  • the component (B) in the water-soluble metalworking fluid composition of the present invention is 30-60% by mass based on the total amount of component (A), component (B) and component (C), preferably 33-55 mass% %, more preferably 36 to 50% by mass, and particularly preferably 39 to 47% by mass.
  • the blending amount of the aforementioned component (B) is less than 30% by mass, the stock solution becomes unstable and detergency is deteriorated.
  • the blending amount of the aforementioned component (B) exceeds 60% by mass, the stock solution becomes unstable.
  • the component (B) in the water-soluble metalworking fluid composition of the present invention is about 39.8 mass based on the total amount of component (A), component (B) and component (C) %, about 39.9% by mass, about 46.6% by mass, or about 46.7% by mass.
  • the blending amount of the component (B) in the water-soluble metalworking fluid composition of the present invention is 3-10% by mass, preferably 4-9.5% by mass, more preferably 5-9% by mass based on the total composition. It is particularly preferably 6.5 to 8.5% by mass.
  • the blending amount of the aforementioned component (B) is less than 3% by mass, the stock solution becomes unstable and the detergency deteriorates.
  • the blending amount of the aforementioned component (B) exceeds 10% by mass, the stock solution becomes unstable.
  • the compounding amount of the component (B) in the water-soluble metalworking fluid composition of the present invention is 7 mass% or 8.4 mass% based on the total composition.
  • the acid value of the component (B) in the water-soluble metalworking fluid composition of the present invention is 100 mgKOH/g to 300 mgKOH/g, preferably 150 mgKOH/g to 250 mgKOH/g, and more preferably 175 mgKOH/g to 225 mgKOH/g, particularly preferably 190 mgKOH/g to 200 mgKOH/g.
  • the acid value of the component (B) in the water-soluble metalworking fluid composition of the present invention is 197 mgKOH/g.
  • the acid value is the value measured according to ASTM D664 [mgKOH/g].
  • the component (C) in the water-soluble metalworking fluid composition of the present invention is a polymerized fatty acid having an acid value of 10 mgKOH/g to 200 mgKOH/g. This component (C) contributes to the workability of the water-soluble metalworking fluid composition.
  • the acid value of the aforementioned component (C) is preferably 10 mgKOH/g to 200 mgKOH/g, more preferably 20 mgKOH/g to 100 mgKOH/g, and particularly preferably 30 mgKOH/g to 38 mgKOH/g from the viewpoint of emulsion stability and processability .
  • the acid value of the component (C) in the water-soluble metalworking fluid composition of the present invention is 35 mgKOH/g.
  • the acid value is the value measured according to ASTM D664 [mgKOH/g].
  • the weight average molecular weight (Mw) of the component (C) in the water-soluble metalworking fluid composition of this invention is 400-4000.
  • the aforementioned molecular weight is preferably 400-3000, more preferably 1000-2500, and particularly preferably 1800-2000.
  • processability decreases.
  • the aforementioned molecular weight exceeds 4000, it is difficult to function as a polymerized fatty acid, and the emulsion stability may deteriorate.
  • the weight average molecular weight can be measured by standard polystyrene conversion using the gel permeation chromatography apparatus (made by Agilent, "1260 HPLC”) under the following conditions, for example.
  • the fatty acid (fatty acid as a constituent unit of the component (C) polymerized fatty acid) constituting the component (C) polymerized fatty acid in the water-soluble metal working fluid composition of the present invention is preferably a hydroxy fatty acid, and more preferably a monohydroxy fatty acid.
  • the aforementioned fatty acid is preferably an unsaturated fatty acid.
  • the number of carbon atoms of the fatty acid constituting the component (C) polymerized fatty acid in the water-soluble metalworking fluid composition of the present invention is 8-30, preferably 9-24, more preferably 10-22, and particularly preferably 16- 20.
  • the fatty acid constituting the component (C) in the water-soluble metalworking fluid composition of the present invention has 18 carbon atoms.
  • the fatty acid constituting the component (C) polymerized fatty acid in the water-soluble metal working fluid composition of the present invention includes, for example, hydroxynonanoic acid, hydroxydecanoic acid, hydroxylauric acid, hydroxymyristic acid, hydroxypalmitic acid, and hydroxystearic acid.
  • the degree of polymerization of the component (C) in the water-soluble metalworking fluid composition of the present invention is 2-10, preferably 4-8, and more preferably 5-7.
  • the degree of polymerization is less than 2, the processability of the water-soluble metalworking fluid composition is reduced, and when the degree of polymerization is more than 10, the emulsion stability of the water-soluble metalworking fluid composition is deteriorated.
  • the degree of polymerization of the component (C) in the water-soluble metalworking fluid composition of the present invention is 6.
  • the degree of polymerization refers to the number of monomer units in a macromolecule, polymer, or oligomer molecule.
  • the component (C) in the water-soluble metalworking fluid composition of the present invention is polyricinoleic acid (acid value 35 mgKOH/g, polymerization degree 6).
  • These components (C) may be used individually by 1 type, and may be used in combination of 2 or more types arbitrarily.
  • the polymerized fatty acid of the component (C) in the water-soluble metalworking fluid composition of the present invention can be reacted under normal polymerization reaction, for example, in the presence of no catalyst or a suitable catalyst, at room temperature or under heating conditions. And get.
  • the component (C) in the water-soluble metalworking fluid composition of the present invention is 30-60% by mass, preferably 34-58% by mass based on the total amount of component (A), component (B) and component (C) %, more preferably 38 to 56% by mass, and particularly preferably 43 to 53% by mass.
  • the blending amount of the aforementioned component (C) is less than 30% by mass, the processability may decrease and the stability of the stock solution may deteriorate.
  • the compounding amount of the aforementioned component (C) exceeds 60% by mass, there is a concern that the emulsification stability will decrease and the generation of scum will increase (decrease in detergency).
  • the component (C) in the water-soluble metalworking fluid composition of the present invention is about 43.3 mass based on the total amount of component (A), component (B) and component (C) %, about 43.4% by mass, about 52.1% by mass, or about 52.2% by mass.
  • the compounding amount of the component (C) in the water-soluble metalworking fluid composition of the present invention is 4-16% by mass based on the total composition, preferably 4.5-14% by mass, more preferably 5.5-13% by mass , Especially preferably, it is 6-12 mass %.
  • the blending amount of the aforementioned component (C) is less than 4% by mass, the stability of the stock solution may deteriorate and the workability may be insufficient.
  • the compounding amount of the aforementioned component (C) exceeds 16% by mass, there is a concern that emulsification stability will decrease and scum will increase (decrease in detergency).
  • the compounding amount of the component (C) in the water-soluble metalworking fluid composition of the present invention is 6.5% by mass or 11% by mass based on the total composition.
  • the water-soluble metalworking fluid composition of the present invention does not contain a hydroxyaliphatic carboxylic acid having 2 to 8 carbon atoms.
  • Hydroxyaliphatic carboxylic acids having 2 to 8 carbon atoms (such as citric acid, malic acid, etc.) contribute to detergency, but too much will cause corrosiveness. Therefore, it is not included in the water-soluble metalworking fluid composition of the present invention.
  • the acid value of each component described below is the acid value described in the description of each component, and the blending amount of each component described below is the blending amount of each component with respect to the total amount of the composition described in the description of each component.
  • the aforementioned component (A) (acid value ⁇ blending amount)/the foregoing component (B) (acid value ⁇ blending amount) It is 0.01-2, preferably 0.05-1.5, more preferably 0.1-1, and particularly preferably 0.2-0.4.
  • the aforementioned component (A) (acid value ⁇ blending amount)/the aforementioned component (B) (acid value ⁇ blending amount) is 0.3287 or 0.3481.
  • the aforementioned component (A) (acid value ⁇ blending amount)/the foregoing component (C) (acid value ⁇ blending amount) It is 0.1 to 4, preferably 0.5 to 3, more preferably 1.0 to 2.5, and particularly preferably 1.4 to 2.2.
  • the aforementioned component (A) (acid value ⁇ blending amount)/the aforementioned component (C) (acid value ⁇ blending amount) is 1.4130 or 2.1099.
  • the aforementioned component (B) (acid value ⁇ blending amount)/the aforementioned component (C) (acid value ⁇ blending amount) is 0.1-20, preferably 1-15, and more It is preferably 2 to 10, particularly preferably 4 to 6.5.
  • the aforementioned ratio is less than 0.1, the stock solution is unstable.
  • the aforementioned ratio exceeds 20, there is a concern that the stability of the stock solution and the detergency may deteriorate.
  • the aforementioned component (B) (acid value ⁇ blending amount)/the aforementioned component (C) (acid value ⁇ blending amount) is 4.2982 or 6.0615.
  • the compounding ratio of component (A)/component (B) is 0.01 to 1, preferably 0.05 on a mass basis. -0.75, more preferably 0.1 to 0.5, particularly preferably 0.15 to 0.25.
  • the compounding quantity ratio of component (A)/component (B) is 0.202 or 0.214 on a mass basis.
  • the compounding ratio of component (A)/component (C) is 0.01 to 0.5 on a mass basis, preferably 0.05 to 0.4, more preferably 0.1 to 0.3, particularly preferably It is 0.15 ⁇ 0.25.
  • the aforementioned ratio is less than 0.01, the stock solution is unstable.
  • the aforementioned ratio exceeds 0.5, the stock solution is unstable.
  • the compounding ratio of component (A)/component (C) is 0.155 or 0.231 on a mass basis.
  • the compounding ratio of component (B)/component (C) is 0.1 to 2.5 on a mass basis, preferably 0.3 to 2, more preferably 0.5 to 1.5, particularly preferably It is 0.7 ⁇ 1.1.
  • the aforementioned ratio is less than 0.1, there is a concern that detergency and emulsification stability may deteriorate.
  • the aforementioned ratio exceeds 2.5, there is a concern that the workability is insufficient and the defoaming property deteriorates.
  • the compounding quantity ratio of component (B)/component (C) is 0.764 or 1.077 on a mass basis.
  • the water-soluble metalworking fluid composition of the present invention may further contain an amine compound (hereinafter also referred to as component (D)).
  • component (D) an amine compound
  • amine compounds include alkanolamines, alkylamines, alicyclic amines, and aromatic amines.
  • These amine compounds may be water-soluble or non-water-soluble.
  • alkanolamines include monoethanolamine, diethanolamine, N-methyldiethanolamine, triethanolamine, monoisopropanolamine (1-amino-2-propanol), diisopropanolamine, and triisopropanol Amine, methyldiethanolamine, ethyldiethanolamine, butyldiethanolamine, cyclohexyldiethanolamine, lauryldiethanolamine, dimethylethanolamine, diethylethanolamine, dibutylethanolamine, dioctylethanolamine, octyldiethanolamine Propanolamine, stearyl dipropanolamine, dibutylpropanolamine, dihexylpropanolamine, and dilaurylpropanolamine, etc.
  • oleyldiethanolamine xylyldiethanolamine, dioleylethanolamine, phenyldiethanolamine, benzyldiethanolamine, and tolyldipropanolamine may be contained as the amine compound.
  • alkylamines examples include methylamine, ethylamine, dimethylamine, diethylamine, methylethylamine, methylpropylamine, ethylenediamine, tetramethylenediamine, and N-ethylamine. Ethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, and pentaethylenehexamine, etc.
  • alicyclic amines for example, dicyclohexylamine, 1,4-diaminocyclohexane, 4,4'-diaminodicyclohexylmethane, 4,4'-diamino-3,3'-di Methyldicyclohexylmethane, and N,N-dicyclohexylmethylamine, etc.
  • aromatic amines examples include benzylamine and dibenzylamine.
  • These amine compounds may be further substituted with one or more functional groups having a ring structure such as an alkyl group having 1 to 18 carbon atoms, or a cyclohexyl group and a phenyl group.
  • component (D) is preferably N-methyldiethanolamine, triethanolamine, N,N-dicyclohexylmethylamine, dicyclohexylamine, monoisopropanolamine (1-amino-2 -At least any one of propanol), triisopropanolamine, and cyclohexyldiethanolamine.
  • amine compounds may be used individually by 1 type, and may be used in combination of 2 or more types arbitrarily.
  • the compounding amount of the component (D) in the water-soluble metalworking fluid composition of the present invention is 1-40% by mass based on the total amount of the composition, preferably 5, from the viewpoint of the emulsion stability of the stock solution or the diluted solution. -30% by mass, more preferably 10-20% by mass, and particularly preferably 12-18% by mass.
  • the compounding amount of the component (D) in the water-soluble metalworking fluid composition of the present invention is 14.9% by mass, 15.3% by mass, or 15.7% by mass based on the total composition.
  • water-soluble metalworking fluid composition of the present invention other optional components (additives, etc.) may be further blended within a range that does not impair the effects of the present invention.
  • additives include corrosion inhibitors, discoloration inhibitors, surfactants, metal deactivators, rust inhibitors, defoamers, and bactericides. These additives may be used alone or in combination of two or more arbitrarily.
  • a benzotriazole compound for example, 1,2,3-benzotriazole etc.
  • These anticorrosive agents may be used individually by 1 type, and may be used in combination of 2 or more types arbitrarily.
  • the blending amount is preferably about 0.1 to 10% by mass based on the total amount of the composition.
  • discoloration inhibitor examples include phosphate ester-based corrosion inhibitors (for example, polyoxyethylene alkyl ether phosphate, etc.). These anti-tarnishing agents may be used singly or in combination of two or more arbitrarily.
  • the blending amount is preferably about 0.1 to 10% by mass based on the total amount of the composition.
  • surfactant examples include anionic surfactants, cationic surfactants, nonionic surfactants, and amphoteric surfactants.
  • anionic surfactants there are alkylbenzene sulfonates, ⁇ -olefin sulfonates, and the like.
  • cationic surfactant there are quaternary ammonium salts such as alkyl trimethyl ammonium salt, dialkyl dimethyl ammonium salt, alkyl dimethyl benzyl ammonium salt, and the like.
  • nonionic surfactants include polyoxyethylene polyoxypropylene alkyl ether (for example, polyoxyethylene polyoxypropylene C12-14 alkyl ether), polyoxyalkylene alkyl ether, polyoxyethylene alkyl ether, Ethers such as polyoxyethylene alkylphenyl ether, or sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene fatty acid esters, and other esters, and amides such as fatty acid alkanolamides.
  • alkyl betaine etc. which are a betaine system are mentioned.
  • These surfactants may be used individually by 1 type, and may be used in combination of 2 or more types arbitrarily.
  • the blending amount is preferably about 0.1 to 10% by mass based on the total amount of the composition.
  • metal deactivator examples include benzotriazole, benzotriazole derivatives, imidazolines, pyrimidine derivatives, thiadiazole, and thiadiazole derivatives. These metal deactivators may be used singly or in combination of two or more arbitrarily.
  • the blending amount is preferably about 0.01 to 10% by mass based on the total amount of the composition.
  • rust inhibitor for example, dodecanedioic acid, amine salt of dodecanedioic acid, amine salt of nonanoic acid, alkyl benzenesulfonate, dinonyl naphthalenesulfonate, alkenyl succinate, and Polyol esters and so on.
  • These rust inhibitors may be used individually by 1 type, and may be used in combination of 2 or more types arbitrarily.
  • the blending amount is preferably about 0.1 to 30% by mass based on the total amount of the composition.
  • the defoaming agent for example, silicone-based defoaming agents and the like can be cited. These defoamers may be used singly or in combination of two or more arbitrarily.
  • the blending amount is preferably about 0.01% by mass or more and 1% by mass or less based on the total amount of the composition.
  • bactericides include pyrithione-based bactericides, thiazoline-based preservatives, triazine-based preservatives, alkylbenzimidazole-based preservatives, and parabens (parabens). Class), benzoic acid, salicylic acid, sorbic acid, dehydroacetic acid, p-toluenesulfonic acid and their salts, and phenoxyethanol. These bactericides may be used singly or in combination of two or more arbitrarily.
  • the blending amount is preferably about 0.01 to 5% by mass based on the total amount of the composition.
  • the preparation method of the water-soluble metalworking fluid composition of this invention mixes the said component (A), the component (B), and the component (C) so that it may become the following compounding quantity, and prepares a water-soluble metalworking fluid composition.
  • Component (A) is 1-20% by mass based on the total amount of component (A), component (B) and component (C),
  • Component (B) is 30-60% by mass based on the total amount of component (A), component (B) and component (C),
  • the component (C) is 35 to 55% by mass based on the total amount of the component (A), the component (B), and the component (C).
  • the preparation method of the water-soluble metalworking fluid composition of the present invention is the preparation method of the aforementioned water-soluble metalworking fluid composition, and each component is blended with each component described in the aforementioned water-soluble metalworking fluid composition.
  • the compounding quantity of each component is compounded so that it may become the compounding quantity of each component described in the said water-soluble metalworking fluid composition.
  • water may be further blended.
  • water there may be an effect of improving the dispersion stability or liquid stability of the composition.
  • water used in the preparation of the stock solution there is no particular limitation on the water used in the preparation of the stock solution, and, for example, deionized water (ion exchange water), pure water, tap water, industrial water, and the like can be used.
  • the amount of water used for preparing the stock solution is 1 to 99% by mass based on the total composition, preferably 3 to 85% by mass, more preferably 6 to 75% by mass, and still more preferably 9 to 60% by mass.
  • the compounding amount of water for preparing a stock solution is 10% by mass, 51.6% by mass, or 56.3% by mass based on the total composition.
  • the water-soluble metalworking fluid composition (stock solution) of the present invention contains only the aforementioned component (A), component (B), and component (C), or only the aforementioned component (A), component (B), and component (C) and ingredient (D), or only the aforementioned ingredient (A), ingredient (B), ingredient (C) and other ingredients, or only the aforementioned ingredient (A), ingredient (B), ingredient (C), Ingredient (D) and other ingredients.
  • a base oil may be further blended.
  • mineral oil, synthetic oil, and fats and oils may be cited, and these may be used alone or in combination of two or more arbitrarily.
  • mineral oils examples include paraffin-based mineral oils, naphthenic mineral oils, intermediate mineral oils, and the like.
  • mineral oils more specifically, for example, atmospheric residues obtained by atmospheric distillation of crude oils such as paraffinic, naphthenic, and intermediate systems; and those obtained by vacuum distillation of the atmospheric residues.
  • Distillate oil mineral oil purified by subjecting the distillate oil to one or more of solvent deasphalting, solvent extraction, hydrocracking, solvent dewaxing, catalytic dewaxing, and hydrogenation purification.
  • paraffin-based mineral oils are suitable. These mineral oils may be used alone or in combination of two or more.
  • the base oil in the water-soluble metalworking fluid composition of the present invention is a paraffin-based mineral oil.
  • the mineral oil may be classified into any one of groups 1, 2, and 3 in the base oil types of API (American Petroleum Institute).
  • synthetic oils include poly ⁇ -olefins, ⁇ -olefin copolymers, polybutenes, alkylbenzenes, polyoxyalkylene glycols, polyoxyalkylene glycol esters, polyoxyalkylene glycol ethers, silicone oils, and polyols.
  • fatty acid esters and monoesters are preferred, and fatty acid esters are more suitable.
  • These synthetic oils may be used alone or in combination of two or more arbitrarily.
  • fats and oils examples include natural fats and oils (for example, beef tallow, lard, soybean oil, rapeseed oil, rice bran oil, castor oil, coconut oil, palm oil, palm kernel oil, etc.) and hydrogenated products of the natural fats and oils.
  • the fats and oils may be synthetic fats and oils such as ester.
  • ester for example, a carboxylic acid having a hydrocarbon group having 6 to 24 carbon atoms and a carboxyl group, an ester obtained by reacting an alcohol having 1 to 18 carbon atoms, and the like can be cited.
  • These fats and oils may be used individually by 1 type, and may be used in combination of 2 or more types arbitrarily.
  • the base oil in the water-soluble metalworking fluid composition of the present invention is methyl oleate.
  • the base oil in the water-soluble metalworking fluid composition of the present invention is paraffin-based mineral oil and methyl oleate.
  • the aforementioned base oils may be used alone or in combination of two or more arbitrarily.
  • the aforementioned base oil has a kinematic viscosity at 40°C of 0.1 mm 2 /s or more, preferably 0.5 mm 2 /s or more, more preferably 1 mm 2 /s or more, and even more preferably 5 mm 2 /s or more .
  • the aforementioned base oil has a kinematic viscosity at 40°C of 150 mm 2 /s or less, preferably 100 mm 2 /s or less, and more preferably, from the viewpoints of the handleability of the stock solution and the permeability between the material to be cut and the tool. 50 mm 2 /s or less, more preferably 10 mm 2 /s or less.
  • kinematic viscosity is a value measured according to ASTM D445.
  • the blending amount of the aforementioned base oil is 0.5% by mass or more based on the total composition, preferably 1% by mass or more, more preferably 5% by mass or more, and particularly preferably 9% by mass or more.
  • the compounding amount of the aforementioned base oil is 65% by mass or less based on the total composition, preferably 60% by mass or less, more preferably 55% by mass or less, and particularly preferably 50% by mass or less. If the content of the aforementioned base oil is 0.5% by mass or more, the effect of suppressing tool wear is further improved.
  • the blending amount of the aforementioned base oil is 10% by mass, 15% by mass, or 48.6% by mass based on the total composition.
  • the composition can be used as a stock solution, diluted with water to form an appropriate concentration according to the purpose of use, and the diluted solution can be used as a water-soluble metalworking oil (
  • iluent) is suitably used in various metal processing fields such as punching, cutting, and grinding, such as grinding, drawing, drawing, and rolling.
  • various metal processing fields such as punching, cutting, and grinding, such as grinding, drawing, drawing, and rolling.
  • grinding processing cylindrical grinding processing, inner surface grinding processing, surface grinding processing, hollow grinding processing, tool grinding processing, honing processing, super finishing processing, and special surface grinding processing can be mentioned. (Such as screw grinding, gear grinding, cam grinding, roller grinding) etc.
  • the water-soluble metalworking fluid composition of the present invention may be used without dilution depending on the purpose of use. In this case, the water-soluble metalworking fluid composition becomes a water-soluble metalworking oil.
  • the water-soluble metalworking fluid composition of the present invention is suitable for punching processing, cutting processing or grinding processing.
  • the water-soluble metalworking fluid composition of the present invention is diluted with water so that the concentration of the water-soluble metalworking fluid composition during use is preferably 3% by volume or more, and when used in metalworking, it is more preferably 5% by volume or more, and even more preferably It is 10% by volume or more. If the concentration at the time of dilution with water is 3% by volume or more, the tool wear reduction effect can be sufficiently obtained, and the tool life extension effect can be sufficiently obtained. On the other hand, it is preferably diluted with water so that the concentration of the water-soluble metalworking fluid composition during use is 100% by volume or less, and when used in metalworking, it is more preferably 80% by volume or less, and still more preferably 50% by volume or less.
  • the water-soluble metalworking fluid composition of the present invention it is not necessary that all the compounding components are uniformly dissolved regardless of whether it is a stock solution or a diluted solution. Therefore, it may be a solution type, a soluble type, or a dispersion form such as an emulsion type.
  • water used when diluting the stock solution for example, deionized water (ion exchange water), pure water, tap water, industrial water, etc. can be used.
  • deionized water ion exchange water
  • pure water tap water, industrial water, etc.
  • the water-soluble metalworking fluid composition of the present invention is preferably used in iron-based materials (for example, carbon steel, cast iron, stainless steel, and alloy steel, etc.), or nickel-based alloys (for example, Inconel, and heat and corrosion resistant nickel Base alloys, etc.) are used in the processing of materials. If the water-soluble metalworking fluid composition of the present invention, which has a high tool wear inhibitory effect, is used in the processing of the above-mentioned work material, various tools can be used for processing.
  • iron-based materials for example, carbon steel, cast iron, stainless steel, and alloy steel, etc.
  • nickel-based alloys for example, Inconel, and heat and corrosion resistant nickel Base alloys, etc.
  • composition for evaluation was prepared with the compounding composition shown in Table 1.
  • Material to be cut Aluminum alloy (JIS A7075)
  • Dilution factor 5% by volume (diluted with water).
  • Material to be cut Aluminum alloy (JIS A7075)
  • Dilution factor 5% by volume (diluted with water).
  • A/(A+B+C) means that the blending amount of component (A) is based on the total amount of component (A), component (B), and component (C) ratio.
  • B/(A+B+C) represents the ratio when the compounding amount of the component (B) is based on the total amount of the component (A), the component (B), and the component (C).
  • C/(A+B+C) represents the ratio when the compounding amount of the component (C) is based on the total amount of the component (A), the component (B), and the component (C).
  • A/B shows the compounding ratio of the component (A) and the component (B) based on the total amount of the composition.
  • A/C shows the compounding ratio of the component (A) and the component (C) based on the total amount of the composition.
  • B/C shows the compounding ratio of the component (B) and the component (C) based on the total amount of the composition.
  • the water-soluble metalworking fluid composition of the present application can maintain processability while improving mechanical fouling.

Abstract

水溶性金属加工液组合物及其使用方法，含有下述成分(A)、成分(B)和成分(C)的水溶性金属加工液组合物。成分(A)是碳原子数9～11的脂肪酸，成分(B)是含有碳原子数16～22的不饱和脂肪酸的成分，成分(C)是酸值为10～200mgKOH/g的聚合脂肪酸，成分(A)以成分(A)、成分(B)和成分(C)的总量为基准计为1～20质量％，成分(B)以成分(A)、成分(B)和成分(C)的总量为基准计为30～60质量％，成分(C)以成分(A)、成分(B)和成分(C)的总量为基准计为35～55质量％。该水溶性金属加工液组合物在维持加工性的同时改善机械污垢。

Description

水溶性金属加工液组合物及其使用方法 技术领域
本发明涉及水溶性金属加工液组合物及其使用方法。特别地，本发明涉及可以适用于切削加工或磨削加工、在维持加工性的同时、改善机械污垢的水溶性金属加工液组合物及其使用方法。
背景技术
在切削加工、磨削加工等的金属加工领域，以加工效率的提高、被加工材料与加工被加工材料的工具的摩擦抑制、工具的寿命延长效果、切屑的除去等为目的而使用金属加工油剂。在金属加工油剂中，包含以矿物油、动植物油、合成油等的油分作为主成分的油剂(非水溶性)、和在油分中配合具有表面活性的化合物而赋予了水溶性的油剂(水溶性)。从资源的有效利用、火灾的防止等原因考虑，近年来，开始使用赋予了水溶性的油剂(称为水溶性金属加工油剂)。
在专利文献1中，记载了变细小的切屑与粘性高的防锈剂成分一起作为污垢附着于被切削材料、工作机器上。在专利文献1中，记载了利用碳原子数2～8的羟基脂肪族羧酸，赋予污垢防止效果(第0014段)。
现有技术文献
【专利文献1】日本特开2011-79956号公报。
发明内容
【发明要解决的课题】
本发明人首次发现，在金属加工油剂中，脂肪酸或羟基脂肪酸的量多时，易于产生浮渣。作为其原因，例如是由于过量的前述脂肪酸与在加工液中含有的胺形成盐而水溶化，与水中的Ca离子、Mg离子反应而产生浮渣。
本发明的目的是关于维持加工性、同时改善机械污垢的水溶性金属加工液组合物及其使用方法。特别地，通过作为本发明特征的、以特定的成分的配合率配合特定的下述成分(A)、成分(B)和成分(C)，即使不含碳原子数2～8的羟基脂肪族羧酸，也可以改善成为机械污垢 的原因的浮渣，且可以维持加工性。
【用于解决课题的方案】
[1].水溶性金属加工液组合物，其特征在于，含有下述成分(A)、成分(B)和成分(C)，
成分(A)是碳原子数9～11的脂肪酸，
成分(B)是含有碳原子数16～22的不饱和脂肪酸的成分，
成分(C)是酸值为10～200mgKOH/g的聚合脂肪酸，
成分(A)以成分(A)、成分(B)和成分(C)的总量为基准计为1～20质量％，
成分(B)以成分(A)、成分(B)和成分(C)的总量为基准计为30～60质量％，
成分(C)以成分(A)、成分(B)和成分(C)的总量为基准计为35～55质量％。
[2].根据前述[1]所述的水溶性金属加工液组合物，其特征在于，不包含碳原子数2～8的羟基脂肪族羧酸。
[3].根据前述[1]或[2]所述的水溶性金属加工液组合物，其特征在于，成分(A)(酸值×配合量)/成分(B)(酸值×配合量)为0.01～2，其中成分(A)的配合量和成分(B)的配合量分别是基于水溶性金属加工液组合物总量的各成分的配合量。
[4].根据前述[1]～[3]中任一项所述的水溶性金属加工液组合物，其特征在于，成分(A)/成分(B)的配合量比以质量基准计为0.01～1，其中成分(A)的配合量和成分(B)的配合量分别是基于水溶性金属加工液组合物总量的各成分的配合量。
[5].根据前述[1]～[4]中任一项所述的水溶性金属加工液组合物，其特征在于，水溶性金属加工液组合物中的成分(A)、成分(B)和成分(C)的总含量以水溶性金属加工液组合物总量为基准计为7质量％以上。
[6].根据前述[1]～[5]中任一项所述的水溶性金属加工液组合物，其特征在于，作为成分(C)聚合脂肪酸的构成单元的脂肪酸为羟基脂肪酸。
[7].根据前述[1]～[6]中任一项所述的水溶性金属加工液组合物，其特征在于，成分(C)的重均分子量为400～4000。
[8].根据前述[1]～[7]中任一项所述的水溶性金属加工液组合物，其特征在于，还含有作为(D)成分的胺化合物。
[9].根据前述[1]～[8]中任一项所述的水溶性金属加工液组合物，其特征在于，用于冲切加工、切削加工或磨削加工。
[10].根据前述[1]～[9]中任一项所述的水溶性金属加工液组合物，其特征在于，成分(A)的配合量以水溶性金属加工液组合物总量为基准计为0.05～4质量％。
[11].根据前述[1]～[10]中任一项所述的水溶性金属加工液组合物，其特征在于，成分(B)的配合量以水溶性金属加工液组合物总量为基准计为3～10质量％。
[12].根据前述[1]～[11]中任一项所述的水溶性金属加工液组合物，其特征在于，成分(C)的配合量以水溶性金属加工液组合物总量为基准计为4～16质量％。
[13].根据前述[1]～[12]中任一项所述的水溶性金属加工液组合物，其特征在于，还含有选自防腐蚀剂、防变色剂、表面活性剂、金属减活剂、防锈剂、消泡剂和杀菌剂中的至少一种。
[14].水溶性金属加工液组合物的使用方法，其特征在于，将前述[1]～[13]中任一项所述的水溶性金属加工液组合物用水稀释，以使使用时水溶性金属加工液组合物的浓度为3体积％以上，在金属加工中使用。
[15].金属加工方法，其中，通过使用前述[1]～[13]中任一项所述的水溶性金属加工液组合物而将金属材料进行加工。
[16].水溶性金属加工液组合物的制备方法，其中，配合下述成分(A)、成分(B)和成分(C)，以形成下述的配合量，
成分(A)是碳原子数9～11的脂肪酸，
成分(B)是含有碳原子数16～22的不饱和脂肪酸的成分，
成分(C)是酸值为10～200mgKOH/g的聚合脂肪酸，
成分(A)以成分(A)、成分(B)和成分(C)的总量为基准计为1～20质量％，
成分(B)以成分(A)、成分(B)和成分(C)的总量为基准计为30～60质量％，
成分(C)以成分(A)、成分(B)和成分(C)的总量为基准计 为35～55质量％。
[17].通过前述[16]所述的水溶性金属加工液组合物的制备方法制备得到的水溶性金属加工液组合物。
【发明的效果】
根据本发明，通过以特定的成分的配合率配合特定的成分(A)、成分(B)和成分(C)，即使不包含碳原子数2～8的羟基脂肪族羧酸，也可以改善浮渣(其是形成机械污垢的原因)，且可以维持加工性。
附图的说明
图1是表示实施例1的水溶性金属加工液组合物的洗涤性的评价结果的附图。
图2是表示比较例1的水溶性金属加工液组合物的洗涤性的评价结果的附图。
图3是表示实施例2的水溶性金属加工液组合物的洗涤性的评价结果的附图。
图4是表示比较例2的水溶性金属加工液组合物的洗涤性的评价结果的附图。
图5是表示实施例3的水溶性金属加工液组合物的洗涤性的评价结果的附图。
图6是表示比较例3的水溶性金属加工液组合物的洗涤性的评价结果的附图。
具体实施方式
本说明书中记载的各实施方式中的各技术方案可以任意地组合。本说明书中记载的各技术方案中的各技术特征可以任意地组合。
本说明书中记载的数值范围的上限值和下限值可以任意地组合。例如，记载“A～B”和“C～D”时，“A～D”和“C～B”的范围也作为数值范围，包含在本发明的范围中。另外，本说明书中记载的数值范围“下限值～上限值”是指下限值以上、上限值以下。没有特别说明的情况下，在本说明书中，配合量、含量、“％”等为质量的基准。
〔水溶性金属加工液组合物〕
本发明的水溶性金属加工液组合物(以下也简称为“组合物”或 “原液”)含有以下的成分(A)、成分(B)和成分(C)。
应予说明，本发明的水溶性金属加工液组合物中的成分(A)、成分(B)和成分(C)的总含量以组合物总量为基准计为7质量％以上，优选为10质量％以上，更优选为14质量％以上。另一方面，本发明的水溶性金属加工液组合物中的成分(A)、成分(B)和成分(C)的总含量以组合物总量为基准计为30质量％以下，优选为26质量％以下，更优选为22质量％以下。
在本发明的一个实施方式中，本发明的水溶性金属加工液组合物中的成分(A)、成分(B)和成分(C)的总含量以组合物总量为基准计为15质量％或21.1质量％。
＜成分(A)＞
本发明的水溶性金属加工液组合物中的成分(A)是碳原子数9～11的脂肪酸。该成分(A)与机械污垢相关。
前述成分(A)的碳原子数9～11的脂肪酸优选是碳原子数10的脂肪酸。另外，前述成分(A)的碳原子数9～11的脂肪酸可以列举碳原子数9～11的直链脂肪酸或碳原子数9～11的支链脂肪酸。应予说明，从乳化稳定性、浮渣的减少的方面考虑，优选是碳原子数9～11的支链脂肪酸。
前述成分(A)的碳原子数9～11的脂肪酸可以是饱和脂肪酸，也可以是不饱和脂肪酸，优选是饱和脂肪酸。
前述成分(A)的碳原子数9～11的脂肪酸可以列举例如正壬酸、异壬酸、正癸酸、异癸酸、新癸酸、正十一酸、异十一酸等。
这些成分(A)可以单独使用一种，也可以将两种以上任意地组合使用。
本发明的水溶性金属加工液组合物中的成分(A)以成分(A)、成分(B)和成分(C)的总量为基准计为1～20质量％，优选为3～18质量％，更优选为5～15质量％，特别优选为7～11质量％。前述成分(A)的配合量小于1质量％时，原液稳定性、稀释液稳定性变差。前述成分(A)的配合量超过20质量％时，产生机械污垢。
在本发明的一个实施方式中，本发明的水溶性金属加工液组合物中的成分(A)以成分(A)、成分(B)和成分(C)的总量为基准计为约8.05质量％、约8.06质量％、或10质量％。
本发明的水溶性金属加工液组合物中的成分(A)的配合量以组合物总量为基准计为0.05～4.0质量％，优选为0.1～3.5质量％，更优选为0.5～2.5质量％，特别优选为1～2质量％。前述成分(A)的配合量小于0.05质量％时，原液稳定性、稀释液稳定性变差。前述成分(A)的配合量超过4.0质量％时，产生机械污垢。
在本发明的一个实施方式中，本发明的水溶性金属加工液组合物中的成分(A)的配合量以组合物总量为基准计为1.5质量％或1.7质量％。
本发明的水溶性金属加工液组合物中的成分(A)的酸值从乳化稳定性的观点来看，为200mgKOH/g～500mgKOH/g，优选为250mgKOH/g～400mgKOH/g，更优选为300mgKOH/g～350mgKOH/g，特别优选为310mgKOH/g～330mgKOH/g。
在本发明的一个实施方式中，本发明的水溶性金属加工液组合物中的成分(A)的酸值为320mgKOH/g。
应予说明，酸值是根据ASTM D664测定的值[mgKOH/g]。
＜成分(B)＞
本发明的水溶性金属加工液组合物中的成分(B)含有碳原子数16～22的不饱和脂肪酸。该不饱和脂肪酸的碘值为50～200，优选为100～150，更优选为120～135。碘值是根据ASTM D 1959测定的值。
以成分(B)的总量为基准计，不饱和脂肪酸为50～100质量％，优选为60～95质量％，更优选为70～90质量％。
在本发明的一个实施方式中，以成分(B)的总量为基准计，不饱和脂肪酸为80质量％以上。应予说明，含有过量的碳原子数16～22的饱和脂肪酸的情况下，易于产生浮渣，是不好的。该成分(B)通过与下述的成分(C)一起配合，平衡性良好地维持水溶性金属加工液组合物的加工性的同时，维持水溶性金属加工液组合物的稳定性，改善机械污垢。
对于前述成分(B)的碳原子数16～22的不饱和脂肪酸而言，如果碳原子数低于16，则水溶性金属加工液组合物的乳化稳定性变差，如果碳原子数高于22，则水溶性金属加工液组合物的乳化稳定性变差，有产生机械污垢的担心。另外，前述成分(B)的碳原子数16～22的不饱和脂肪酸优选是碳原子数18的不饱和脂肪酸。
前述成分(B)的碳原子数16～22的不饱和脂肪酸可以列举例如棕榈油酸、油酸、亚油酸、亚麻酸、二十二烯酸、反油酸、和芥酸等。该不饱和脂肪酸优选为油酸和/或亚油酸。
这些成分(B)可以单独使用一种，也可以将两种以上任意地组合使用。
在本发明的一个实施方式中，前述的成分(B)是含有碳原子数18的不饱和脂肪酸80质量％以上(油酸45质量％以上、亚油酸35质量％以上)的米糠油脂肪酸。
本发明的水溶性金属加工液组合物中的成分(B)以成分(A)、成分(B)和成分(C)的总量为基准计为30～60质量％，优选为33～55质量％，更优选为36～50质量％，特别优选为39～47质量％。前述成分(B)的配合量小于30质量％时，原液变得不稳定，洗涤性恶化。前述成分(B)的配合量超过60质量％时，原液变得不稳定。
在本发明的一个实施方式中，本发明的水溶性金属加工液组合物中的成分(B)以成分(A)、成分(B)和成分(C)的总量为基准计为约39.8质量％、约39.9质量％、约46.6质量％或约46.7质量％。
本发明的水溶性金属加工液组合物中的成分(B)的配合量以组合物总量为基准计为3～10质量％，优选为4～9.5质量％，更优选为5～9质量％，特别优选为6.5～8.5质量％。前述成分(B)的配合量小于3质量％时，原液变得不稳定，洗涤性恶化。前述成分(B)的配合量超过10质量％时，原液变得不稳定。
在本发明的一个实施方式中，本发明的水溶性金属加工液组合物中的成分(B)的配合量以组合物总量为基准计为7质量％或8.4质量％。
从原液稳定性的观点来看，本发明的水溶性金属加工液组合物中的成分(B)的酸值为100mgKOH/g～300mgKOH/g，优选为150mgKOH/g～250mgKOH/g，更优选为175mgKOH/g～225mgKOH/g，特别优选为190mgKOH/g～200mgKOH/g。
在本发明的一个实施方式中，本发明的水溶性金属加工液组合物中的成分(B)的酸值为197mgKOH/g。
应予说明，酸值是根据ASTM D664测定的值[mgKOH/g]。
＜成分(C)＞
本发明的水溶性金属加工液组合物中的成分(C)是酸值为10mgKOH/g～200mgKOH/g的聚合脂肪酸。该成分(C)有助于水溶性金属加工液组合物的加工性。
前述成分(C)的酸值从乳化稳定性、加工性的观点考虑，优选为10mgKOH/g～200mgKOH/g，更优选为20mgKOH/g～100mgKOH/g，特别优选为30mgKOH/g～38mgKOH/g。在本发明的一个实施方式中，本发明的水溶性金属加工液组合物中的成分(C)的酸值为35mgKOH/g。
应予说明，酸值是根据ASTM D664测定的值[mgKOH/g]。
本发明的水溶性金属加工液组合物中的成分(C)的重均分子量(Mw)为400～4000。前述的分子量优选为400～3000，更优选为1000～2500，特别优选为1800～2000。前述的分子量小于400时，加工性降低。前述的分子量超过4000时，难以发挥作为聚合脂肪酸的功能，有时乳化稳定性恶化。
应予说明，在本说明书中，重均分子量例如可以使用凝胶渗透色谱装置(安捷伦公司制，“1260型HPLC”)，在下述的条件下，经标准聚苯乙烯换算来测定。
(测定条件)
·柱子：将2根“Shodex LF404”依次连接而成的柱子。
·柱温：35℃
·展开溶剂：氯仿
·流速：0.3mL/min。
构成本发明的水溶性金属加工液组合物中的成分(C)聚合脂肪酸的脂肪酸(作为成分(C)聚合脂肪酸的构成单元的脂肪酸)优选为羟基脂肪酸，更优选为单羟基脂肪酸。前述的脂肪酸优选为不饱和脂肪酸。
作为构成本发明的水溶性金属加工液组合物中的成分(C)聚合脂肪酸的脂肪酸的碳原子数，为8～30，优选为9～24，更优选为10～22，特别优选为16～20。
在本发明的一个实施方式中，构成本发明的水溶性金属加工液组合物中的成分(C)的脂肪酸的碳原子数为18。
作为构成本发明的水溶性金属加工液组合物中的成分(C)聚合脂 肪酸的脂肪酸，可以列举例如羟基壬酸、羟基癸酸、羟基月桂酸、羟基肉豆蔻酸、羟基棕榈酸、羟基硬脂酸、羟基花生酸、羟基山嵛酸、蓖麻油酸、蓖麻醇酸、羟基十八碳烯酸、羟基癸二酸、羟基辛基癸二酸、降皱梅衣酸(norcaperatic acid)、2-羟基-1,2,3-十九烷三甲酸、作为二羟基单羧酸的、3,11-二羟基十四烷酸、二羟基十六烷酸、二羟基硬脂酸、二羟基十八碳烯酸、二羟基十八碳二烯酸、二羟基十二烷二酸、二羟基十六烷二酸、9,10-二羟基十八烷二酸、二羟基二十六烷二酸等。另外，也可以使用由天然油脂得到的蓖麻油脂肪酸、氢化蓖麻油脂肪酸。
本发明的水溶性金属加工液组合物中的成分(C)的聚合度为2～10，优选为4～8，更优选为5～7。聚合度小于2时，水溶性金属加工液组合物的加工性降低，而聚合度大于10时，水溶性金属加工液组合物的乳化稳定性变差。
在本发明的一个实施方式中，本发明的水溶性金属加工液组合物中的成分(C)的聚合度为6。
在本发明中，聚合度、即DP(degree of polymerization)为大分子、聚合物或低聚物分子中的单体单元的数量。
在本发明的一个实施方式中，本发明的水溶性金属加工液组合物中的成分(C)为多聚蓖酸(polyricinoleic acid)(酸值为35mgKOH/g，聚合度为6)。
这些成分(C)可以单独使用一种，也可以将两种以上任意地组合使用。
本发明的水溶性金属加工液组合物中的成分(C)的聚合脂肪酸可以通过使上述脂肪酸按照通常的聚合反应、例如在无催化剂、或适当的催化剂的存在下，在室温或者加热条件下反应而得到。
本发明的水溶性金属加工液组合物中的成分(C)以成分(A)、成分(B)和成分(C)的总量为基准计为30～60质量％，优选为34～58质量％，更优选为38～56质量％，特别优选为43～53质量％。前述成分(C)的配合量小于30质量％时，有时加工性降低、原液稳定性恶化。前述成分(C)的配合量超过60质量％时，有乳化稳定性降低、浮渣的产生增多(洗涤性降低)的担心。
在本发明的一个实施方式中，本发明的水溶性金属加工液组合物 中的成分(C)以成分(A)、成分(B)和成分(C)的总量为基准计为约43.3质量％、约43.4质量％、约52.1质量％或约52.2质量％。
本发明的水溶性金属加工液组合物中的成分(C)的配合量以组合物总量为基准计为4～16质量％，优选为4.5～14质量％，更优选为5.5～13质量％，特别优选为6～12质量％。前述成分(C)的配合量小于4质量％时，有原液稳定性恶化、加工性不足的担心。前述成分(C)的配合量超过16质量％时，有乳化稳定性降低、浮渣增多(洗涤性降低)的担心。
在本发明的一个实施方式中，本发明的水溶性金属加工液组合物中的成分(C)的配合量以组合物总量为基准计为6.5质量％或11质量％。
在本发明的水溶性金属加工液组合物中不包含碳原子数2～8的羟基脂肪族羧酸。碳原子数2～8的羟基脂肪族羧酸(例如柠檬酸、苹果酸等)虽然有助于洗涤性，但过于多时，产生腐蚀性，因此在本发明的水溶性金属加工液组合物中不包含碳原子数2～8的羟基脂肪族羧酸。
＜配合量比＞
下述各成分的酸值分别是前述各成分的记载中记载的酸值，下述各成分的配合量分别是前述各成分的记载中记载的相对于组合物总量的各成分的配合量。
在本发明的水溶性金属加工液组合物中，从乳化稳定性、洗涤性的观点来看，前述成分(A)(酸值×配合量)/前述成分(B)(酸值×配合量)为0.01～2，优选为0.05～1.5，更优选为0.1～1，特别优选为0.2～0.4。
在本发明的一个实施方式中，在本发明的水溶性金属加工液组合物中，前述成分(A)(酸值×配合量)/前述成分(B)(酸值×配合量)为0.3287或0.3481。
在本发明的水溶性金属加工液组合物中，从乳化稳定性、洗涤性的观点来看，前述成分(A)(酸值×配合量)/前述成分(C)(酸值×配合量)为0.1～4，优选为0.5～3，更优选为1.0～2.5，特别优选为1.4～2.2。
在本发明的一个实施方式中，在本发明的水溶性金属加工液组合 物中，前述成分(A)(酸值×配合量)/前述成分(C)(酸值×配合量)为1.4130或2.1099。
在本发明的水溶性金属加工液组合物中，前述成分(B)(酸值×配合量)/前述成分(C)(酸值×配合量)为0.1～20，优选为1～15，更优选为2～10，特别优选为4～6.5。前述的比例小于0.1时，原液不稳定。前述的比例超过20时，有原液稳定性恶化、洗涤性恶化的担心。
在本发明的一个实施方式中，在本发明的水溶性金属加工液组合物中，前述成分(B)(酸值×配合量)/前述成分(C)(酸值×配合量)为4.2982或6.0615。
在本发明的水溶性金属加工液组合物中，从乳化稳定性、洗涤性的观点来看，成分(A)/成分(B)的配合量比以质量基准计为0.01～1，优选为0.05～0.75，更优选为0.1～0.5，特别优选为0.15～0.25。
在本发明的一个实施方式中，在本发明的水溶性金属加工液组合物中，成分(A)/成分(B)的配合量比以质量基准计为0.202或0.214。
在本发明的水溶性金属加工液组合物中，成分(A)/成分(C)的配合量比以质量基准计为0.01～0.5，优选为0.05～0.4，更优选为0.1～0.3，特别优选为0.15～0.25。前述的比例小于0.01时，原液不稳定。前述的比例超过0.5时，原液不稳定。
在本发明的一个实施方式中，在本发明的水溶性金属加工液组合物中，成分(A)/成分(C)的配合量比以质量基准计为0.155或0.231。
在本发明的水溶性金属加工液组合物中，成分(B)/成分(C)的配合量比以质量基准计为0.1～2.5，优选为0.3～2，更优选为0.5～1.5，特别优选为0.7～1.1。前述的比例小于0.1时，有洗涤性降低、乳化稳定性恶化的担心。前述的比例超过2.5时，有加工性不足、消泡性恶化的担心。
在本发明的一个实施方式中，在本发明的水溶性金属加工液组合物中，成分(B)/成分(C)的配合量比以质量基准计为0.764或1.077。
＜成分(D)＞
本发明的水溶性金属加工液组合物可以进一步含有胺化合物(以下也称为成分(D))。
作为胺化合物，可以列举例如烷醇胺、烷基胺、脂环式胺、和芳香族胺等。
这些胺化合物可以是水溶性或非水溶性的。
作为烷醇胺，可以列举例如单乙醇胺、二乙醇胺、N-甲基二乙醇胺、三乙醇胺、单异丙醇胺(1-氨基-2-丙醇)、二异丙醇胺、三异丙醇胺、甲基二乙醇胺、乙基二乙醇胺、丁基二乙醇胺、环己基二乙醇胺、月桂基二乙醇胺、二甲基乙醇胺、二乙基乙醇胺、二丁基乙醇胺、二辛基乙醇胺、辛基二丙醇胺、硬脂基二丙醇胺、二丁基丙醇胺、二己基丙醇胺、和二月桂基丙醇胺等。另外，也可以含有油基二乙醇胺、二甲苯基二乙醇胺、二油基乙醇胺、苯基二乙醇胺、苄基二乙醇胺、甲苯基二丙醇胺作为所述胺化合物。
作为烷基胺，可以列举甲胺、乙胺、二甲基胺、二乙基胺、甲基乙基胺、甲基丙基胺、乙二胺、四亚甲基二胺、N-乙基乙二胺、二亚乙基三胺、三亚乙基四胺、四亚乙基五胺、和五亚乙基六胺等。
作为脂环式胺，可以列举例如二环己基胺、1,4-二氨基环己烷、4,4’-二氨基二环己基甲烷、4,4’-二氨基-3,3’-二甲基二环己基甲烷、和N,N-二环己基甲胺等。
作为芳香族胺，可以列举例如苄胺和二苄胺等。
这些胺化合物可以进一步被碳原子数1～18的烷基、或环己基、苯基等具有环结构的官能团1个以上取代。
从耐腐败性的观点考虑，成分(D)优选是N-甲基二乙醇胺、三乙醇胺、N，N-二环己基甲胺、二环己基胺、单异丙醇胺(1-氨基-2-丙醇)、三异丙醇胺、和环己基二乙醇胺中的至少任一者。
这些胺化合物可以单独使用一种，也可以将两种以上任意地组合使用。
本发明的水溶性金属加工液组合物中的成分(D)的配合量从原液或稀释液的乳化稳定性的观点考虑，以组合物总量为基准计为1～40质量％，优选为5～30质量％，更优选为10～20质量％，特别优选为12～18质量％。
在本发明的一个实施方式中，本发明的水溶性金属加工液组合物中的成分(D)的配合量以组合物总量为基准计为14.9质量％、15.3质量％、或15.7质量％。
＜其他成分＞
在本发明的水溶性金属加工液组合物中，在不损害本发明效果的 范围内可以进一步配合其他任意的成分(添加剂等)。
作为添加剂，可以列举例如防腐蚀剂、防变色剂、表面活性剂、金属减活剂、防锈剂、消泡剂、和杀菌剂等。这些添加剂可以单独使用一种，也可以将两种以上任意地组合使用。
作为防腐蚀剂，可以列举例如苯并三唑化合物(例如1,2,3-苯并三唑等)等。这些防腐蚀剂可以单独使用一种，也可以将两种以上任意地组合使用。作为配合量，优选以组合物总量为基准计为0.1～10质量％左右。
防变色剂可以列举例如磷酸酯系防腐蚀剂(例如聚氧乙烯烷基醚磷酸酯等)等。这些防变色剂可以单独使用一种，也可以将两种以上任意地组合使用。作为配合量，优选以组合物总量为基准计为0.1～10质量％左右。
作为表面活性剂，可以列举阴离子性表面活性剂、阳离子性表面活性剂、非离子性表面活性剂、和两性表面活性剂等。作为阴离子性表面活性剂，有烷基苯磺酸盐、α-烯烃磺酸盐等。作为阳离子性表面活性剂，有烷基三甲基铵盐、二烷基二甲基铵盐、烷基二甲基苄基铵盐等的季铵盐等。作为非离子性表面活性剂，可以列举聚氧乙烯聚氧丙烯烷基醚(例如，聚氧乙烯聚氧丙烯C12-14烷基醚)、聚氧化烯烷基醚、聚氧乙烯烷基醚、聚氧乙烯烷基苯基醚等的醚、或脱水山梨糖醇脂肪酸酯、聚氧乙烯脱水山梨糖醇脂肪酸酯、聚氧乙烯脂肪酸酯等的酯、脂肪酸烷醇酰胺这样的酰胺。作为两性表面活性剂，可以列举作为甜菜碱系的烷基甜菜碱等。这些表面活性剂可以单独使用一种，也可以将两种以上任意地组合使用。作为配合量，优选以组合物总量为基准计为0.1～10质量％左右。
作为金属减活剂，可以列举例如苯并三唑、苯并三唑衍生物、咪唑啉、嘧啶衍生物、噻二唑、和噻二唑衍生物等。这些金属减活剂可以单独使用一种，也可以将两种以上任意地组合使用。作为配合量，优选以组合物总量为基准计为0.01～10质量％左右。
作为防锈剂，可以列举例如十二烷二酸、十二烷二酸的胺盐、壬酸的胺盐、苯磺酸烷基酯、萘磺酸二壬酯、琥珀酸烯基酯、和多元醇酯等。这些防锈剂可以单独使用一种，也可以将两种以上任意地组合使用。作为配合量，优选以组合物总量为基准计为0.1～30质量％左右。
作为消泡剂，可以列举例如有机硅系消泡剂等。这些消泡剂可以单独使用一种，也可以将两种以上任意地组合使用。作为配合量，优选以组合物总量为基准计为0.01质量％以上1质量％以下左右。
作为杀菌剂，可以列举例如羟基吡啶硫酮(pyrithione)系杀菌剂、噻唑啉系防腐剂、三嗪系防腐剂、烷基苯并咪唑系防腐剂、对羟基苯甲酸酯类(尼泊金酯类)、苯甲酸、水杨酸、山梨酸、去氢乙酸、对甲苯磺酸和它们的盐类、以及苯氧基乙醇等。这些杀菌剂可以单独使用一种，也可以将两种以上任意地组合使用。作为配合量，优选是以组合物总量为基准计为0.01～5质量％左右。
＜水溶性金属加工液组合物的制备方法＞
本发明的水溶性金属加工液组合物的制备方法通过以形成下述配合量的方式配合前述成分(A)、成分(B)和成分(C)，制备水溶性金属加工液组合物。
成分(A)以成分(A)、成分(B)和成分(C)的总量为基准计为1～20质量％，
成分(B)以成分(A)、成分(B)和成分(C)的总量为基准计为30～60质量％，
成分(C)以成分(A)、成分(B)和成分(C)的总量为基准计为35～55质量％。
进一步地，在制备本发明的水溶性金属加工液组合物(原液)时，也可以配合前述成分(D)和前述其他成分。另外，作为前述成分(D)的配合量，以形成前述成分(D)的记载中的配合量的方式配合。另外，作为前述其他成分的配合量，以形成前述其他成分的记载中的各配合量的方式配合。
本发明的水溶性金属加工液组合物的制备方法是前述水溶性金属加工液组合物的制备方法，对于各成分，配合在前述水溶性金属加工液组合物中记载的各成分。另外，各成分的配合量以形成在前述水溶性金属加工液组合物中记载的各成分的配合量的方式配合。
在制备本发明的水溶性金属加工液组合物(原液)时，也可以进一步配合水。通过配合水，有时具有提高组合物的分散稳定性或液体稳定性的效果。对于在制备原液时使用的水，没有特别限制，可以使用例如去离子水(离子交换水)、纯水、自来水、和工业用水等。原 液制备用的水的配合量以组合物总量为基准计为1～99质量％，优选为3～85质量％，更优选为6～75质量％，进一步优选为9～60质量％。
在本发明的一个实施方式中，原液制备用的水的配合量以组合物总量为基准计为10质量％、51.6质量％、或56.3质量％。
组合物的分散稳定性或液体稳定性也根据组合物中的前述各成分和它们的配合比例而变化。因此，也有不需要水的情况。该情况下，本发明的水溶性金属加工液组合物(原液)仅含有前述成分(A)、成分(B)和成分(C)，或仅含有前述成分(A)、成分(B)、成分(C)和成分(D)，或仅含有前述成分(A)、成分(B)、成分(C)和其他成分，或仅含有前述成分(A)、成分(B)、成分(C)、成分(D)和其他成分。
在制备本发明的水溶性金属加工液组合物(原液)时，也可以进一步配合基础油。作为基础油，可以列举矿物油、合成油、和油脂，它们可以单独使用一种，也可以将两种以上任意地组合使用。
作为矿物油，可以列举石蜡系矿物油、环烷烃系矿物油、中间系矿物油等。作为这些矿物油，更具体地，可以列举例如将石蜡系、环烷烃系、中间系等的原油进行常压蒸馏而得的常压渣油；将该常压渣油进行减压蒸馏而得的馏出油；将该馏出油进行溶剂脱沥青、溶剂萃取、氢化裂解、溶剂脱蜡、催化脱蜡、氢化纯化等中的1个以上处理而纯化了的矿物油等。在矿物油中，石蜡系矿物油是合适的。这些矿物油可以单独使用一种，也可以将两种以上任意地组合使用。在本发明的一个实施方式中，本发明的水溶性金属加工液组合物中的基础油为石蜡系矿物油。
另外，作为矿物油，可以是在API(美国石油协会)的基础油种类中，分类为组1、2、3的任一组的物质。
作为合成油，可以列举例如聚α-烯烃、α-烯烃共聚物、聚丁烯、烷基苯、聚氧化烯二醇、聚氧化烯二醇酯、聚氧化烯二醇醚、硅油、多元醇酯、单酯、脂肪酸酯、和α-烯烃等。在合成油中，优选是脂肪酸酯和单酯，其中，脂肪酸酯是更合适的。这些合成油可以单独使用一种，也可以将两种以上任意地组合使用。
作为油脂，可以列举例如天然油脂(例如，牛脂、猪脂、大豆油、菜籽油、米糠油、蓖麻油、椰子油、棕榈油、和棕榈仁油等)以及该 天然油脂的氢化物等。另外，油脂可以是酯等的合成油脂。作为酯，可以列举例如具有碳原子数6～24的烃基和羧基的羧酸、与碳原子数1～18的醇反应而得的酯等。这些油脂可以单独使用一种，也可以将两种以上任意地组合使用。在本发明的一个实施方式中，本发明的水溶性金属加工液组合物中的基础油为油酸甲酯。
在本发明的一个实施方式中，本发明的水溶性金属加工液组合物中的基础油为石蜡系矿物油和油酸甲酯。
前述基础油可以单独使用一种，也可以将两种以上任意地组合使用。
前述基础油从润滑性的观点考虑，40℃下的运动粘度为0.1mm 2/s以上，优选为0.5mm 2/s以上，更优选为1mm 2/s以上，进一步优选为5mm 2/s以上。另外，前述基础油从原液的操作性、和向被切削材料-工具间的浸透性的观点考虑，40℃下的运动粘度为150mm 2/s以下，优选为100mm 2/s以下，更优选为50mm 2/s以下，进一步优选为10mm 2/s以下。
应予说明，运动粘度是根据ASTM D445测定的值。
前述基础油的配合量以组合物总量为基准计为0.5质量％以上，优选为1质量％以上，更优选为5质量％以上、特别优选为9质量％以上。另一方面，前述基础油的配合量以组合物总量为基准计为65质量％以下，优选为60质量％以下，更优选为55质量％以下、特别优选为50质量％以下。如果前述基础油的含量为0.5质量％以上，则工具磨损的抑制效果更为提高。
在本发明的一个实施方式中，前述基础油的配合量以组合物总量为基准计为10质量％、15质量％、或48.6质量％。
〔水溶性金属加工油剂〕
对于本发明的水溶性金属加工液组合物而言，可以将该组合物作为原液，根据其使用目的以形成适当的浓度的方式用水稀释，将该稀释过的溶液作为水溶性金属加工油剂(以下也称为“稀释液”)，而合适地用于以冲切加工、切削加工、磨削加工为首的、研磨、拉深、抽拉、轧制等的各种金属加工领域。应予说明，作为磨削加工，可以列举圆筒磨削加工、内面磨削加工、平面磨削加工、空心磨削加工、工具磨削加工、珩磨加工、超精加工、和特殊曲面磨削加工(例如螺 丝磨削、齿轮磨削、凸轮磨削、辊磨削)等。应予说明，本发明的水溶性金属加工液组合物根据其使用目的，可以不稀释而使用，该情况下，水溶性金属加工液组合物成为水溶性金属加工油剂。
〔水溶性金属加工液组合物的用途、水溶性金属加工液组合物的使用方法〕
本发明的水溶性金属加工液组合物适合用于冲切加工、切削加工或磨削加工。
本发明的水溶性金属加工液组合物用水稀释，以使使用时水溶性金属加工液组合物的浓度优选为3体积％以上，而在金属加工中使用，更优选为5体积％以上，进一步优选为10体积％以上。如果采用水的稀释时的浓度为3体积％以上，则可以充分得到工具磨损减少效果，进而可以充分得到工具寿命延长效果。另一方面，优选用水稀释，以使使用时水溶性金属加工液组合物的浓度为100体积％以下，而在金属加工中使用，更优选为80体积％以下，进一步优选为50体积％以下。
其中，对于本发明的水溶性金属加工液组合物，不论是原液还是稀释液，不必是所有的配合成分都均匀地溶解。因此，可以是溶液型，也可以是可溶型，还可以是乳液型这样的分散形式。
应予说明，对于将原液进行稀释时所用的水，可以使用例如去离子水(离子交换水)、纯水、自来水、和工业用水等。
本发明的水溶性金属加工液组合物优选在铁系材料(例如，碳素钢、铸铁、不锈钢、和合金钢等)、或镍基合金(例如，因科镍合金、和耐热耐蚀镍基合金等)等材料的加工中使用。如果在上述被加工材料的加工中使用工具磨损抑制效果高的本发明的水溶性金属加工液组合物，则可以使用各种工具进行加工。
【实施例】
以下，列举实施例和比较例来进一步详细地说明本发明，但本发明不受这些记载内容的任何限制。应予说明，各例子中的组合物的性状等利用下述的方法求得。
(1)运动粘度
根据ASTM D445，测定40℃下的运动粘度。
(2)酸值
根据ASTM D664测定。
(3)碘值
根据ASTM D 1959测定。
＜组合物的评价＞
以表1所示的配合组成制备评价用的组合物。
利用以下这样的方法进行各组合物的评价。所得的结果示于表2。
评价项目
(1)污垢(圆筒振荡法)
·在100ml具塞量筒中，在稀释液(原液5体积％)100ml中加入铝粉5g、铁粉5g。※铝粉、铁粉为试剂。
·用手强烈振摇10秒，静置。
·观察静置30秒后的外观(是各图中左侧的照片，记载为“振荡结束”)。
·静置10分钟后，使量筒翻转数次，再次静置，观察30秒后的外观(是各图中右侧的照片，记载为“静置10分钟”)。
·污垢的基准。
振荡后进行静置，通过在液面上是否残留有污垢来进行评价。
○；静置后在液面上没有残留污垢
△；静置后在液面上残留少许污垢
×；静置后在液面上残留相当多的污垢。
(2)加工性(攻丝扭矩试验)
加工性的评价通过攻丝扭矩试验法进行。具体的条件记载于实施例中。
Figure PCTCN2021072020-appb-000001
Figure PCTCN2021072020-appb-000002
※1
攻丝扭矩试验
试验机：Megatap II(micro-electronische Gerate GmbH)
工具：TTT T-M4C-T 3.625mm
试验条件：深度＝20mm,速度＝600rpm,扭矩＝400Ncm
被切削材料：不锈钢(JIS SUS316Ti)
稀释倍率：5体积％(用水稀释)。
※2
攻丝扭矩试验
试验机：Megatap II(micro-electronische Gerate GmbH)
工具：TTT T-M4F-NT 3.625mm
试验条件：深度＝20mm,速度＝1000rpm,扭矩＝400Ncm
被切削材料：铝合金(JIS A7075)
稀释倍数：5体积％(用水稀释)。
※3
攻丝扭矩试验
试验机：Megatap II(micro-electronische Gerate GmbH)
工具：TTT T-M4F-NT 3.625mm
试验条件：深度＝20mm,速度＝1000rpm,扭矩＝400Ncm
被切削材料：铝合金(JIS A7075)
稀释倍数：5体积％(用水稀释)。
应予说明，在表2中，“A/(A+B+C)”表示成分(A)的配合量以成分(A)、成分(B)和成分(C)的总量作为基准时的比率。“B/(A+B+C)”表示成分(B)的配合量以成分(A)、成分(B)和成分(C)的总量作为基准时的比率。“C/(A+B+C)”表示成分(C)的配合量以成分(A)、成分(B)和成分(C)的总量作为基准时的比率。“A/B”表示以组合物总量为基准计的成分(A)与成分(B)的配合量比。“A/C”表示以组合物总量为基准计的成分(A)与成分(C)的配合量比。“B/C”表示以组合物总量为基准计的成分(B)与成分(C)的配合量比。
根据前述实施例和比较例的结果，本申请的水溶性金属加工液组合物可维持加工性，同时改善机械污垢。

Claims (17)

  1. 水溶性金属加工液组合物，其特征在于，含有下述成分(A)、成分(B)和成分(C)，
    成分(A)是碳原子数9～11的脂肪酸，
    成分(B)是含有碳原子数16～22的不饱和脂肪酸的成分，
    成分(C)是酸值为10～200mgKOH/g的聚合脂肪酸，
    成分(A)以成分(A)、成分(B)和成分(C)的总量为基准计为1～20质量％，
    成分(B)以成分(A)、成分(B)和成分(C)的总量为基准计为30～60质量％，
    成分(C)以成分(A)、成分(B)和成分(C)的总量为基准计为35～55质量％。
  2. 根据权利要求1所述的水溶性金属加工液组合物，其特征在于，不包含碳原子数2～8的羟基脂肪族羧酸。
  3. 根据权利要求1或2所述的水溶性金属加工液组合物，其特征在于，成分(A)(酸值×配合量)/成分(B)(酸值×配合量)为0.01～2，其中成分(A)的配合量和成分(B)的配合量分别是基于水溶性金属加工液组合物总量的各成分的配合量。
  4. 根据权利要求1～3中任一项所述的水溶性金属加工液组合物，其特征在于，成分(A)/成分(B)的配合量比以质量基准计为0.01～1，其中成分(A)的配合量和成分(B)的配合量分别是基于水溶性金属加工液组合物总量的各成分的配合量。
  5. 根据权利要求1～4中任一项所述的水溶性金属加工液组合物，其特征在于，水溶性金属加工液组合物中的成分(A)、成分(B)和成分(C)的总含量以水溶性金属加工液组合物总量为基准计为7质量％以上。
  6. 根据权利要求1～5中任一项所述的水溶性金属加工液组合物，其特征在于，作为成分(C)聚合脂肪酸的构成单元的脂肪酸为羟基脂肪酸。
  7. 根据权利要求1～6中任一项所述的水溶性金属加工液组合物，其特征在于，成分(C)的重均分子量为400～4000。
  8. 根据权利要求1～7中任一项所述的水溶性金属加工液组合物，其特征在于，还含有作为(D)成分的胺化合物。
  9. 根据权利要求1～8中任一项所述的水溶性金属加工液组合物，其特征在于，用于冲切加工、切削加工或磨削加工。
  10. 根据权利要求1～9中任一项所述的水溶性金属加工液组合物，其特征在于，成分(A)的配合量以水溶性金属加工液组合物总量为基准计为0.05～4质量％。
  11. 根据权利要求1～10中任一项所述的水溶性金属加工液组合物，其特征在于，成分(B)的配合量以水溶性金属加工液组合物总量为基准计为3～10质量％。
  12. 根据权利要求1～11中任一项所述的水溶性金属加工液组合物，其特征在于，成分(C)的配合量以水溶性金属加工液组合物总量为基准计为4～16质量％。
  13. 根据权利要求1～12中任一项所述的水溶性金属加工液组合物，其特征在于，还含有选自防腐蚀剂、防变色剂、表面活性剂、金属减活剂、防锈剂、消泡剂和杀菌剂中的至少一种。
  14. 水溶性金属加工液组合物的使用方法，其特征在于，将权利要求1～13中任一项所述的水溶性金属加工液组合物用水稀释，以使使用时水溶性金属加工液组合物的浓度为3体积％以上，在金属加工中使用。
  15. 金属加工方法，其中，通过使用权利要求1～13中任一项所述的水溶性金属加工液组合物而将金属材料进行加工。
  16. 水溶性金属加工液组合物的制备方法，其中，配合下述成分(A)、成分(B)和成分(C)，以形成下述的配合量，
    成分(A)是碳原子数9～11的脂肪酸，
    成分(B)是含有碳原子数16～22的不饱和脂肪酸的成分，
    成分(C)是酸值为10～200mgKOH/g的聚合脂肪酸，
    成分(A)以成分(A)、成分(B)和成分(C)的总量为基准计为1～20质量％，
    成分(B)以成分(A)、成分(B)和成分(C)的总量为基准计为30～60质量％，
    成分(C)以成分(A)、成分(B)和成分(C)的总量为基准计 为35～55质量％。
  17. 通过权利要求16所述的水溶性金属加工液组合物的制备方法制备得到的水溶性金属加工液组合物。
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