CN116891780A - Metal working oil composition, metal working oil and metal working method - Google Patents

Metal working oil composition, metal working oil and metal working method Download PDF

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Publication number
CN116891780A
CN116891780A CN202310322330.1A CN202310322330A CN116891780A CN 116891780 A CN116891780 A CN 116891780A CN 202310322330 A CN202310322330 A CN 202310322330A CN 116891780 A CN116891780 A CN 116891780A
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Prior art keywords
mass
metal working
acid
working oil
oil composition
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Inventor
青木大知
山口美幸
西塚史章
佐佐木节夫
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Kyodo Yushi Co Ltd
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Kyodo Yushi Co Ltd
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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
    • 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
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/02—Water
    • 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
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/16—Paraffin waxes; Petrolatum, e.g. slack wax
    • C10M2205/163—Paraffin waxes; Petrolatum, e.g. slack wax used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02—Hydroxy compounds
    • C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
    • C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
    • C10M2207/127—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 polycarboxylic
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/22—Acids obtained from polymerised unsaturated acids
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
    • 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
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/24—Emulsion properties
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C10N2040/22—Metal working with essential removal of material, e.g. cutting, grinding or drilling

Abstract

The invention provides a metal working oil composition, a metal working oil and a metal working method, which have excellent lubricity (machinability), hard water resistance and stock solution stability. A metal working finish composition comprising: (A) 0.1 to 3.5% by mass of a primary alkanolamine having 6 or more carbon atoms, (B) 1.0 to 8.0% by mass of a primary alkanolamine such as 2- (2-aminoethoxy) ethanol, (C) 1.5 to 9.0% by mass of a tertiary amine having 3 alkanol groups, (D) 1.0 to 5.0% by mass of N-butylmonoethanolamine, (E) 0.3 to 4.0% by mass of a dibasic acid having 10 or more carbon atoms at both ends, F) 2.0 to 10.0% by mass of a linear fatty acid having 12 to 22 carbon atoms, (G) 5.0 to 15.0% by mass of a polycondensate of castor fatty acid, (H) 0.5 to 10.0% by mass of 1 or more branched alcohols having 11 or more carbon atoms, (I) 35.0 to 50.0% by mass of a paraffinic mineral oil, and (J) water.

Description

Metal working oil composition, metal working oil and metal working method
Technical Field
The present invention relates to a water-soluble metal working oil composition which can be widely used for metal working such as plastic working including cutting and grinding.
Background
As cutting oils widely used in the cutting and grinding fields, there are water-insoluble cutting oils based on mineral oil and water-soluble cutting oils containing mineral oil, surfactant, organic amine and the like and used after dilution in water.
In addition, in the water-soluble cutting oil, a preservative is added or an amine having a preservative effect is formulated in order to improve the corrosion resistance of the oil.
However, in addition to the recent conservation of global resources and prevention of deterioration of global environment, there is also a demand for development of a cutting oil which is more favorable to global environment than ever before and which can withstand as long as possible.
Conventionally, among water-soluble metal working oils, for example, there are known water-soluble cutting oil compositions using fatty acid alkanolamide ethylene oxide adducts and alkylamine ethylene oxide adducts, alicyclic amine ethylene oxide adducts, fatty acid higher alcohol adducts (patent document 1), water-soluble grinding oil compositions using benzene-based compounds and p-hydroxybenzoic acid ester compounds (patent document 2), metal working oil compositions containing primary alkanolamines, carboxylic acids having 6 to 24 carbon atoms and specific alkylenediamines (patent document 3), water-soluble metal working oil compositions using aromatic amines or alicyclic amines (patent document 4), water-soluble grinding oil compositions using primary, secondary and tertiary alkylamines, aromatic diamine oxyalkylene adducts, alicyclic diamine oxyalkylene adducts and the like (patent document 5), water-soluble metal working oil compositions using unsaturated fatty acids and heterocyclic compounds (patent document 6), metal working oil compositions using amines having an alkyl group having 4 carbon atoms and amines having a ring or benzene ring (patent document 7), water-soluble metal working oil compositions using an antimicrobial amino group-containing alkylenediamines (patent document 8) and the like.
However, these water-soluble metal working oils are effective against general bacteria, but they do not have sufficient effects against mold and yeast. In addition, there is also a concern about the influence on the human body of compounds that are PRTR target substances using halogen-containing compounds, polycyclic aromatic compounds, phenolic compounds, or metal salts as effective compounds.
Preservatives and amines are compounds essential for improving the anti-spoilage performance of the oil.
On the other hand, as a method for improving machinability, for example, a hot rolling oil and a hot rolling method using a specific palm olein (patent document 10), a metal working oil composition in which the acid value and the amine value of all the constituent components are set to a specific ratio, a working method using the same, a metal working member produced by the metal working method, and the like are known (patent document 11).
However, these water-soluble metalworking oils have an effect in general cutting, but do not satisfy cutting performance in heavy cutting.
Prior art literature
Patent literature
Patent document 1: japanese patent publication No. 6-31388
Patent document 2: japanese patent publication No. 7-37632
Patent document 3: japanese patent publication No. 6-76590
Patent document 4: japanese patent No. 2510233
Patent document 5: japanese patent laid-open No. 9-316482
Patent document 6: japanese patent No. 4836341
Patent document 7: japanese patent No. 5255835
Patent document 8: japanese patent No. 5204390
Patent document 9: japanese patent No. 5670882
Patent document 10: japanese patent No. 3320642
Patent document 11: japanese patent No. 6355339
Disclosure of Invention
Problems to be solved by the invention
The present invention aims to provide a metal working oil composition excellent in lubricity (machinability), hard water resistance and stock solution stability.
Means for solving the problems
According to the present inventors, it is known that this object can be achieved by using a specific amine, a specific fatty acid, a specific alcohol, and a specific mineral oil in a specific ratio. That is, according to the present invention, there are provided the following metal working oil composition, metal working oil and metal working method:
1. a metal working oil composition comprising (A) 0.1 to 3.5% by mass of at least 1 primary alkanolamine having 6 or more carbon atoms, (B) 1.0 to 8.0% by mass of at least 1 primary alkanolamine selected from the group consisting of 2- (2-aminoethoxy) ethanol, 2-amino-2-methyl-1-propanol, monoisopropanolamine and monoethanolamine, (C) 1.5 to 9.0% by mass of at least 1 tertiary amine having 3 alkanol groups, (D) 1.0 to 5.0% by mass of N-butylmonoethanolamine, (E) 0.3 to 4.0% by mass of at least 1 dibasic acid having carboxylic acid groups at both ends of 10 or more carbon atoms, (F) 2.0 to 10.0% by mass of a linear fatty acid having 12 to 22 carbon atoms, (G) 5.0 to 15.0% by mass of a polycondensate of ricinoleic acid, (H) 0.5 to 10.0% by mass of at least 1 branched alcohol having 11 or more carbon atoms, and (J) 0.0 to 50% by mass of water.
2. The metal working oil composition according to the above 1, wherein the component (A) is 1 or 2 selected from the group consisting of amino hexanol, amino octanol, amino decanol and amino dodecanol.
3. The metal working oil composition according to the above 1 or 2, wherein the component (C) is 1 or 2 selected from the group consisting of triethanolamine, triisopropanolamine, monoethanolamine and diethanolamine.
4. The metal working oil composition according to any one of the above 1 to 3, wherein the component (E) is at least 1 selected from the group consisting of sebacic acid, undecanedioic acid and dodecanedioic acid.
5. The metal working oil composition according to any one of the above 1 to 4, wherein the component (F) is at least 1 selected from the group consisting of lauric acid, oleic acid, ricinoleic acid and erucic acid.
6. The metal working oil composition according to any one of the above 1 to 5, wherein the component (G) is a ricinoleic acid polycondensate having an acid value of 30 to 100 mgKOH/G.
7. The metal working oil composition according to any one of the above 1 to 6, wherein the component (H) is at least 1 branched alcohol having 13 to 26 carbon atoms or more.
8. A metal working oil composition according to any one of the above 1 to 7, which is diluted with water.
9. A metal working method comprising using the metal working oil composition according to any one of the above 1 to 7 or the metal working oil according to the above 8.
Effects of the invention
According to the present invention, a metal working oil composition excellent in lubricity (machinability), hard water resistance and stock solution stability can be provided. The composition of the present invention is also excellent in emulsion stability (stability of a diluent), nonferrous corrosion resistance, and waste liquid disposal properties.
Detailed Description
Component (A) is at least 1 primary alkanolamine having 6 or more carbon atoms. Component (a) contributes to stock solution stability.
Examples of the primary alkanolamine (a) include amino hexanol, amino octanol, and amino dodecanol. These may be used alone or in combination of two or more. Among them, amino hexanol and amino octanol are preferable, and 3-amino-4-octanol is particularly preferable.
The content of the component (A) is 0.1 to 3.5% by mass, preferably 0.5 to 1.0% by mass, based on the total mass of the composition. When the content is 0.1 to 3.5 mass%, sufficient stock solution stability can be maintained.
Component (B) is at least 1 primary alkanolamine selected from the group consisting of 2- (2-aminoethoxy) ethanol, 2-amino-2-methyl-1-propanol, monoisopropanolamine and monoethanolamine. Among them, 2- (2-aminoethoxy) ethanol is particularly preferable.
The content of the component (B) is 1.0 to 8.0 mass%, preferably 2 to 6 mass%, based on the total mass of the composition. When the content is 1.0 mass% or more, good emulsion stability and hard water resistance can be exhibited. When the content is 8.0 mass% or less, the excellent nonferrous corrosion resistance can be maintained, and the cutting performance can be sufficiently improved.
The at least 1 tertiary amine having 3 alkanol groups of component (C) is preferably at least 1 selected from the group consisting of triethanolamine, triisopropanolamine, diethanol monoisopropanolamine. Preferably triethanolamine or triisopropanolamine.
The content of the component (C) is 1.5 to 9.0 mass%, preferably 3.0 to 6.0 mass%, based on the total mass of the composition. By setting the content of (C) to 1.5 to 9.0 mass%, good emulsion stability, hard water resistance and stock solution stability can be maintained.
(D) The content of N-butyl monoethanolamine is 1.0 to 5.0% by mass, preferably 1.5 to 4.0% by mass. When the content is 1.0 mass% or more, sufficient stock solution stability and emulsion stability can be exhibited. When the content is 5.0 mass% or less, excellent hard water resistance can be exhibited.
The total amount of the component (C) and the component (D) is preferably 4.0 to 12.0% by mass, more preferably 5.0 to 10.0% by mass, based on the total mass of the composition of the present invention. By containing the component (C) and the component (D) in such a range, good hard water resistance, emulsion stability, and good stock solution stability can be maintained.
Examples of the dibasic acid having a carboxylic acid group at both ends of at least 1 carbon atom number of 10 or more in the component (E) include sebacic acid, undecanedioic acid, dodecanedioic acid, tridecanedioic acid, tetradecanedioic acid, pentadecanedioic acid, hexadecanedioic acid, and the like. These may be used alone or in combination of two or more. Among them, sebacic acid and dodecanedioic acid are preferable. Component (E) contributes particularly to rust inhibitive performance.
Examples of the at least 1 linear fatty acid having 12 to 22 carbon atoms of the component (F) include linear lauric acid, myristic acid, pentadecanoic acid, palmitic acid, stearic acid, arachidonic acid, behenic acid, palmitoleic acid, margaric acid, iso-oleic acid, linoleic acid, linolenic acid, eleostearic acid, eicosadienoic acid, eicosatrienoic acid, erucic acid, elaidic acid, arachidonic acid, 12-hydroxystearic acid, ricinoleic acid, and the like. These may be used alone or in combination of two or more. Among them, oleic acid, ricinoleic acid and erucic acid are preferable, and ricinoleic acid and erucic acid are more preferable.
The content of the component (F) is 2.0 to 10.0 mass%, preferably 3 to 8 mass%, based on the total mass of the composition. When the content is 2.0 to 10.0 mass%, good hard water resistance can be maintained.
The polycondensate of ricinoleic acid of the component (G) is preferably 30 to 100mgKOH/G in acid value, more preferably 30 to 50mgKOH/G in acid value.
The content of the component (G) is 3.0 to 15.0 mass%, preferably 5.0 to 15.0 mass%, based on the total mass of the composition. When the content is within such a range, the emulsion of the diluent and the stability of the stock solution are excellent.
As the component (H), at least 1 branched alcohol having 11 or more carbon atoms is preferable, and the number of carbon atoms is 13 to 26. Component (H) contributes particularly to the stock solution stability at low temperatures. Examples of the component (H) include undecanol, lauryl alcohol, tridecyl alcohol, tetradecanol, pentadecyl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, oleyl alcohol, linoleyl alcohol, eicosanol, heneicosanol, tetracosanol, and triacontanol. Among them, isotridecyl alcohol, isotetradecyl alcohol, isopentadecyl alcohol, isotetracosyl alcohol or a mixture thereof is preferable, and a mixture of isotetradecyl alcohol and isopentadecyl alcohol is more preferable.
The content of the component (H) is 0.5 to 10.0% by mass, preferably 1.0 to 5.0% by mass, based on the total mass of the composition. When the content is within this range, satisfactory levels of stock solution stability can be exhibited.
Component (I) isParaffin mineral oil. Component (I) contributes particularly to lubricity. As component (I), a kinematic viscosity of 8 to 60mm at 40℃is preferable 2 Paraffin-based mineral oil/s. In the present specification, the kinematic viscosity can be measured in accordance with JIS K2283.
The content of the component (I) is 35.0 to 50.0% by mass, preferably 40.0 to 45.0% by mass, based on the total mass of the composition. When the content is 35.0% by mass or more, good lubricity can be exhibited. When the content is 50.0 mass% or less, the emulsion stability of the diluent can be improved.
Component (J) is water. Component (J) contributes to the stock solution stability. The content of the component (J) is preferably 3.0 to 35.0% by mass, more preferably 15.0 to 25.0% by mass, based on the balance of the composition.
The metal working oil composition of the present invention may contain 0.3 to 2.0 mass% of isostearic acid and 0.5 to 3.0 mass% of neodecanoic acid in addition to the component (F). These components are preferably contained because foaming during use can be appropriately suppressed.
The metal working oil composition of the present invention may contain 0.5 to 3.0 mass% of 5 (or 6) -carboxy-4-hexyl-2-cyclohexane octanoate (for example, "DIACID1550" manufactured by Ingevity). The inclusion of this component is preferable because the emulsion stability of the diluent and the rust inhibitive performance during use are improved.
The metal working oil composition of the present invention contains lubricating oil as a lubricating aid as needed. Examples of the lubricating aids include synthetic ester oils, polyol esters, alkylbenzenes, natural oils and fats, polyethylene glycols, and poly- α -olefins. They are not limited to single products but may be a plurality of mixed oils. Synthetic ester oils and natural fats are preferred. As synthetic ester oils, 2-ethylhexyl palmitate, 2-ethylhexyl stearate or 2-ethylhexyl oleate are preferred.
The content of the lubricating oil as the lubricating aid is preferably 3 to 20% by mass, more preferably 5 to 15% by mass, based on the total mass of the metal working oil composition of the present invention. When the content is within such a range, the lubricating property is excellent.
The metal working oil composition of the present invention contains a surfactant as required. The surfactant may be any of anionic surfactants, cationic surfactants, nonionic surfactants, and amphoteric surfactants, for example. Anionic and nonionic surfactants are preferred. As the anionic surfactant, ether carboxylic acids such as lauryl ether carboxylic acid in which acetic acid is added to the terminal of lauryl alcohol EO adduct and oleyl ether carboxylic acid in which acetic acid is added to the terminal of oleyl alcohol EO adduct are preferable. The EO addition mole number of the ether carboxylic acid is preferably 2 to 10.
As the nonionic surfactant, nonionic surfactants having HLB of 4 to 14 represented by Griffin formula are preferable. Examples thereof include polyoxyalkylene alkyl (alkenyl) ethers (weight average molecular weight: about 700 to 2000) such as polyoxypropylene monobutyl ether and polyoxyethylene oleyl ether, alkylene oxide adducts of higher amines such as laurylamine EO adducts and cocoalkylamine EO adducts, and alkylene oxide adducts of higher alcohols such as C12-14 alcohol EO and PO adducts. The surfactant may be used alone or in combination of two or more.
The content of the surfactant is preferably 0.2 to 5% by mass, more preferably 0.5 to 2% by mass, based on the total mass of the composition. When the content is within such a range, the emulsion stability of the diluent and the stability of the stock solution are excellent.
The metal working oil composition of the present invention may contain fatty acids such as lauryl succinic acid and stearyl succinic acid, sulfonates such as sodium petroleum sulfonate, carboxylic acid amides, and the like as rust inhibitors, as required.
The content of the rust inhibitor is preferably 0 to 20 mass%, more preferably 1 to 10 mass%, based on the total mass of the composition.
The metal working oil composition of the present invention may contain, if necessary, a silicone-based antifoaming agent, an alcohol-based antifoaming agent, a benzotriazole-based metal anticorrosive agent, and the like.
The content of the defoaming agent and the metal anticorrosive agent is preferably 0.05 to 2% by mass, more preferably 0.1 to 1% by mass, based on the total mass of the composition, respectively.
Further, the metal working oil composition of the present invention may contain, as an antiseptic agent such as benzisothiazolin-3-one, 1, 2-benzisothiazolin-3-one, butylbenzisothiazolin-3-one, metal pyrithione salt (for example, sodium methoxide, zinc pyrithione), and alkylamines typified by laurylamine, oleylamine, and the like as an antiseptic agent or a bacterial inhibitor, as required.
The content of the preservative or the bacterial inhibitor is preferably 0.1 to 5% by mass, more preferably 0.2 to 2% by mass, based on the total mass of the composition.
The pH (25 ℃) of the metal-working oil composition of the present invention is preferably 7.0 to 11, more preferably 8.5 to 11, in a liquid in which the stock solution is diluted with pure water to 5 mass%. When the pH is 7.0 or more, a satisfactory degree of corrosion resistance can be obtained. When the pH is 11 or less, skin irritation can be suppressed to be low. Examples of the pH adjuster that can be used include amines other than the components (a) to (D), for example, amines having an alicyclic group such as dicyclohexylamine, 1, 3-diaminocyclohexane, and cyclohexylpropyldiamine, amines having an aromatic ring group such as EO adducts thereof and m-xylylenediamine, and acids such as lactic acid, malic acid, maleic acid, succinic acid, tartaric acid, citric acid, and boric acid.
The metal working oil composition of the present invention is generally diluted with water to a concentration of 0.5 mass% or more and used.
Compositions of examples and comparative examples having compositions (units of mass%) shown in table 1 were prepared.
< evaluation method >
(1) Stock solution stability
The compositions of examples and comparative examples were placed in a candle bottle, and allowed to stand in a constant temperature bath at-5℃and 25℃and 50℃for 168 hours, to confirm the state of the stock solution at the time of removal.
Determination reference: if there is no change in appearance such as separation or solidification, the product is qualified.
(2) Emulsion stability (stability of dilution)
The composition of example or comparative example was diluted to 5 mass% in pure water, and the diluted solution was put into a 100mL measuring cylinder with a stopper, and the change in appearance after 1 day at 25℃was confirmed.
Determination reference: if the emulsion is not bad, the product is qualified.
(3) Lubricity (machinability)
The following workpiece was used to perform M6 tapping under the following conditions, and the cutting resistance applied during the machining was measured.
The tool to be cut: non-fluted Tap (Nu-Roll Tap) (manufactured by OSG, B-NRT, RH7, M6X1.0)
Material to be cut: aluminium alloy (AC 8B-T6, 300X 200X 30 mm)
Cutting speed: 10m/min
And (3) lower holes: reaming 5.48mm blind hole
Cutting length: 20mm of
Concentration: diluting the stock solution with water to 5 mass%
N number: 5
Test finish oil: the composition of the example or comparative example was diluted with water to 5 mass%
Oil supply amount: test oil 6L/min
The evaluation method comprises the following steps: measuring cutting resistance (Torque N.m)
Determination reference: the cutting torque was set to 2.9N.m or less.
(4) Non-ferrous corrosion resistance test
The composition of example or comparative example was diluted to 5 mass% in JIS hard water diluted to 10 times with pure water, and placed in a mayonnaise bottle, in which an aluminum test piece (a 1050) having its surface ground with silicon carbide #240 was immersed. Sealing was performed to confirm the change in appearance of the test piece after 2 days at 25 ℃.
Determination reference: and if the test piece does not change color significantly, the test piece is qualified.
(5) Hard water resistance
An aqueous solution in which calcium chloride 2 hydrated salt was dissolved in pure water so that the calcium concentration became 100ppm was prepared in advance, and the composition of example or comparative example was placed in a mayonnaise bottle so as to be diluted to 5% by mass, and the bottle was sealed to confirm the change in appearance after 1 day at 25 ℃.
Determination reference: if no obvious scum is generated and oil is separated, the product is qualified.
(6) Waste liquid disposal
The composition of example or comparative example was diluted to 5% by weight with pure water, added with aluminum sulfate and sulfuric acid to adjust the pH to 3.0, subjected to acid decomposition, neutralized with an aqueous sodium hydroxide solution, and coagulated with a polymer coagulant to form a floc. Then, the mixture was filtered through a 5C filter paper to confirm the appearance of the filtrate.
Determination reference: and if the appearance is transparent, the product is qualified.
The results are shown in tables 1 and 2.
TABLE 1
TABLE 2

Claims (9)

1. A metal working finish composition comprising:
(A) 0.1 to 3.5% by mass of at least 1 primary alkanolamine having 6 or more carbon atoms,
(B) 1.0 to 8.0 mass% of at least 1 primary alkanolamine selected from the group consisting of 2- (2-aminoethoxy) ethanol, 2-amino-2-methyl-1-propanol, monoisopropanolamine and monoethanolamine,
(C) 1.5 to 9.0 mass% of at least 1 tertiary amine having 3 alkanol groups,
(D) 1.0 to 5.0 mass percent of N-butyl monoethanolamine,
(E) 0.3 to 4.0 mass% of at least 1 dibasic acid having carboxylic acid groups at both ends thereof and having 10 or more carbon atoms,
(F) 2.0 to 10.0 mass% of a linear fatty acid having 12 to 22 carbon atoms,
(G) 5.0 to 15.0 mass percent of castor fatty acid polycondensate,
(H) 0.5 to 10.0 mass% of at least 1 branched alcohol having 11 or more carbon atoms,
(I) 35.0 to 50.0 mass% of paraffin mineral oil, and
(J) And (3) water.
2. The metal working oil composition according to claim 1, wherein the component (a) is 1 or 2 selected from the group consisting of amino hexanol, amino octanol, amino decanol, and amino dodecanol.
3. The metal working oil composition according to claim 1 or 2, wherein the component (C) is 1 or 2 selected from the group consisting of triethanolamine, triisopropanolamine, monoethanolamine and diethanolamine.
4. The metal working oil composition according to any one of claims 1 to 3, wherein the component (E) is at least 1 selected from the group consisting of sebacic acid, undecanedioic acid and dodecanedioic acid.
5. The metal working oil composition according to any one of claims 1 to 4, wherein the component (F) is at least 1 selected from the group consisting of lauric acid, oleic acid, ricinoleic acid and erucic acid.
6. The metal working oil composition according to any one of claims 1 to 5, wherein component (G) is a ricinoleic acid polycondensate having an acid value of 30 to 100 mgKOH/G.
7. The metal working oil composition according to any one of claims 1 to 6, wherein component (H) is at least 1 branched alcohol having 13 to 26 carbon atoms or more.
8. A metal working oil composition according to any one of claims 1 to 7, which is diluted with water.
9. A metal working method comprising using the metal working oil composition according to any one of claims 1 to 7 or the metal working oil according to claim 8.
CN202310322330.1A 2022-03-30 2023-03-29 Metal working oil composition, metal working oil and metal working method Pending CN116891780A (en)

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