JPH08253789A - Rolling oil concentrate composition and rolling oil composition - Google Patents

Abstract

PURPOSE: To obtain a rolling oil concentrate of emulsion type with which a rolled product having intact surface gloss can be obtained, by compounding a base oil with specific ingredients. CONSTITUTION: The composition comprises, based on the whole composition, 2-50wt.% at least one base oil (A) selected among mineral oils, synthetic oils, and fats; 2-50wt.% partial ester (B) of a di to decahydric alcohol with a 6-24C fatty acid; 5-50wt.% 6-24C aliphatic acid and/or zarcoside (C); 1-30wt.% 1-12C alkanolamine (D); 1-30wt.% 1-16C amine (E); and 0-50wt.% water (F). The contents of A, B, D, and E satisfy the relationships 0.2<=a1 /b1 <=5, 0.3<=e1 /d1 <=3, and 0.6<=(a1 +1 )/(d.1 +e1 )<=7.5 (wherein a1 , b1 , d1 , and e1 are the contents (wt.%) of the components A, B, D, and E, respectively, based on the whole composition).

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to an emulsion type rolling fluid used for rolling aluminum, copper and their alloys, and further stainless steel, and an emulsion rolling fluid diluted with water. The present invention relates to a rolling oil concentrate.

[0002]

2. Description of the Related Art A rolling process for reducing the thickness of a material by passing a metal material between rotating rolls is roughly classified into hot rolling and cold rolling. In order to reduce the frictional force of the roll and cool the roll and the like to reduce the thermal deformation of the roll, a rolling oil is used. In recent rolling processes, especially in cold rolling processes, it has been required to reduce the number of passes of the material to be processed to the rolling mill and to increase the rolling speed in order to reduce power consumption. However, high lubrication performance is required of rolling oils accordingly. Mineral oil-based rolling oils usually have higher lubricity as their viscosity is higher, but their viscosity cannot be increased so much in order to impart good surface gloss to rolled products. On the contrary, the rolling fluid used for a rolling mill with a high rolling speed needs to have a lower viscosity than the rolling fluid used for a rolling mill operated at a normal speed. However, mineral oil-based rolling oils generally have a tendency to lower the flash point as the viscosity decreases, so for high-speed rolling mills whose temperature rises from that of ordinary rolling mills, instead of mineral oil-based rolling oils, fats, mineral oils, There is a tendency to use emulsion type rolling oil in which synthetic oil or the like is solubilized or dispersed in water. However, the conventional emulsion type rolling oil is
In order to ensure its lubricity, the oil component with a relatively high viscosity is solubilized or dispersed in water, so it is easy to form oil pits at the rolling point, as in the case of mineral oil-based rolling fluids. Then, there is a drawback that the surface gloss of the rolled product is reduced. Further, not only the emulsion type rolling fluid, but generally the rolling fluid is not thrown away,
It is customary to filter the used rolling oil used in the previous rolling process to remove metal abrasion powder and other impurities generated in the previous rolling process, and then use it again in the rolling process. . However, since the conventional emulsion-type rolling oil contains oil droplets having a relatively large particle diameter, there is also a disadvantage that these are removed together with impurities such as metal abrasion powder during the above filtration.

[0003]

DISCLOSURE OF INVENTION Problems to be Solved by the Invention As a result of repeated studies to overcome the above-mentioned drawbacks pointed out in conventional emulsion type rolling oils, the present inventors have combined certain components in a limited amount. It was found that the drawbacks of conventional emulsion-type rolling oils can be eliminated by using it as the active ingredient of emulsion-type rolling oils. Therefore, one of the objects of the present invention is to provide an emulsion-type rolling oil and its undiluted solution that do not reduce the surface gloss of rolled products. Another one of the objects of the present invention is an emulsion type rolling fluid stock solution in which an oil component contained in an emulsion rolling fluid is dispersed in water with fine particles, and an oil component is dispersed in water in fine particles. An object is to provide an emulsion type rolling oil.

[0004]

A rolling oil concentrate composition according to the present invention comprises 2 to 50 mass% of one or more base oils selected from (A) mineral oils, synthetic oils and fats and oils based on the total amount thereof. , (B) 2- to 10-valent polyhydric alcohol and 6 to 2 carbon atoms
4 partial ester with fatty acid, 2 to 50% by mass, (C)
Fatty acids having 6 to 24 carbon atoms and / or sarcoside, 5
-50 mass%, (D) C1-C12 alkanolamine, 1-30 mass%, (E) C1-C16 amine, 1-30 mass%, and (F) water, 0-50 mass. %
And contains (A) component, (B) component, (D)
Content of the component and the component (E) is represented by the following formula (1) to
It satisfies the formula (3). a ₁ / b ₁ = 0.2 to 5 (1) e ₁ / d ₁ = 0.3 to 3 (2) (a ₁ + b ₁ ) / (d ₁ + e ₁ ) = 0.6 to 7.5 ( 3) where a ₁ is the content (mass%) of the component (A) based on the total amount of the rolling oil concentrate composition, and b ₁ is the content (mass%) of the component (B) based on the total amount of the rolling oil stock solution composition. ), D ₁ is the content (mass%) of the component (D) based on the total amount of the rolling oil concentrate composition, and e ₁ is the content (mass%) of the component (E) on the basis of the total amount of the rolling oil stock solution composition. Shown respectively. In addition, the rolling oil agent composition according to the present invention is based on the total amount thereof (A) mineral oil,
0.1 to 25% by mass of one or more base oils selected from synthetic oils and fats and oils, and (B) a partial ester of a polyhydric alcohol having 2 to 10 valences and a fatty acid having 6 to 24 carbon atoms to 0.1. 1
-25 mass%, (C) C6-24 fatty acid and / or sarcoside 0.2-25 mass%, (D) C1-C1
0.05 to 15 mass% of 12 alkanolamines and 0.05 to 15 mass% of (E) amine having 1 to 16 carbon atoms, and (A) component, (B) component,
The contents of the component (D) and the component (E) are expressed by the following formula (4).
~ (6) is satisfied. _{a 2 / b 2 = 0.2~5 (} 4) e 2 / d 2 = 0.3~3 (5) (a 2 + b 2) / (d 2 + e 2) = 0.6~7.5 ( 6) where a ₂ is the content (mass%) of the component (A) based on the total amount of the rolling oil composition, b ₂ is the content (mass%) of the component (B) based on the total amount of the rolling oil composition, d ₂ represents the content (mass%) of the component (D) based on the total amount of the rolling oil composition, and e ₂ represents the content (mass%) of the component (E) based on the total amount of the rolling oil composition.

The undiluted composition for rolling oil of the present invention (hereinafter referred to as undiluted composition) comprises (A) one or more base oils selected from mineral oils, synthetic oils and fats and oils (B) divalent to 10-valent. Partial ester of polyhydric alcohol and fatty acid having 6 to 24 carbon atoms, (C) fatty acid having 6 to 24 carbon atoms and / or sarcoside, (D) alkanolamine having 1 to 12 carbon atoms,
It is composed of (E) an amine having 1 to 16 carbon atoms and (F) water. As the base oil as the component (A), any of mineral oils, synthetic oils, and fats and oils that have been used as base oils for emulsion rolling oils, water-soluble rolling oils, etc. can be used. Examples of mineral base oils that can be used in the present invention include solvent degassing, solvent extraction, hydrocracking, and solvent dewaxing for lubricating oil fractions obtained by atmospheric distillation and vacuum distillation of crude oil. Examples include paraffin-based and naphthene-based mineral oils obtained by applying one or more refining means such as catalytic dewaxing, hydrorefining, sulfuric acid washing, and clay treatment as appropriate. Examples of synthetic oils include poly-α-olefins (polybutene, 1-octene oligomer, 1-decene oligomer, etc.), alkylbenzene, alkylnaphthalene, esters (butyl stearate, octyl laurate, ditridecyl glutarate, di-2). -Ethylhexyl adipate, diisodecyl adipate, ditridecyl adipate, di-2-ethylhexyl sebacate, etc., polyol ester (trimethylolpropane caprylate, trimethylolpropane pelargonate, trimethylolpropane oleate, trimethylolpropane stearate, pentaerythritol- 2-ethylhexanoate, pentaerythritol pelargonate, pentaerythritol oleate, pentaerythritol stearate, etc.), Polyoxyalkylene glycols, dialkyl ethers, polyphenyl ether and the like. Also,
Examples of fats and oils include palm oil and beef tallow. The base oil of the component (A) can be composed of any one of the above-mentioned mineral oils, synthetic oils and fats and oils, and the base oil can be a mixture of two or more kinds in an arbitrary ratio. It can also be configured. Further, the mineral oil, synthetic oil or fat / oil itself used does not have to be a single kind. The viscosity of the base oil used as the component (A) is not particularly limited, but it is generally preferable that the kinematic viscosity at 40 ° C. is in the range of 1 to 300 mm 2 / s,
Those in the range of 2 to 100 mm2 / s are more preferable. The content of the component (A) in the stock solution composition of the present invention is 2 to 50% by mass, preferably 5 to 40% by mass, based on the total amount of the composition.

The component (B) of the present invention is a partial ester of a polyhydric alcohol having 2 to 10 valences and a fatty acid having 6 to 24 carbon atoms. Specific examples of the polyhydric alcohol having 10 to 10 valences referred to as the component (B) include ethylene glycol, diethylene glycol, polyethylene glycol (ethylene glycol 3 to 15 mer), propylene glycol, dipropylene glycol, polypropylene glycol. (Propylene glycol 3-15mer), 1,3-
Propanediol, 1,2-butanediol, 1,3-
Butanediol, 1,4-butanediol, 2-methyl-1,2-propanediol, 2-methyl-1,3-propanediol, 1,2-pentanediol, 1,3-
Pentanediol, 1,4-pentanediol, 1,5
-Dihydric alcohols such as pentanediol and neopentyl glycol; glycerin, polyglycerin (2-8 octamer of glycerin such as diglycerin, triglycerin,
Tetraglycerin, etc.), trimethylolalkane (trimethylolethane, trimethylolpropane, trimethylolbutane, etc.) and their 2- to 8-mer, pentaerythritol and their 2- to 4-mer, 1, 2,
4-butanetriol, 1,3,5-pentanetriol, 1,2,6-hexanetriol, 1,2,3,4
-Polyalcohols such as butanetetrol, sorbitol, sorbitan, sorbitol glycerin condensate, adonitol, arabitol, xylitol, mannitol; xylose, arabinose, ribose, rhamnose, glucose, fructose, galactose, mannose, sorbose, cellobiose, maltose, iso. Examples include sugars such as maltose, trehalose and sucrose. Among these, ethylene glycol, diethylene glycol, polyethylene glycol (ethylene glycol 3- to 10-mer), propylene glycol,
Dipropylene glycol, polypropylene glycol (3- to 10-mer of propylene glycol), 1,3-propanediol, 2-methyl-1,2-propanediol, 2-methyl-1,3-propanediol, neopentyl glycol, Glycerin, diglycerin, triglycerin, trimethylolalkane (trimethylolethane, trimethylolpropane, trimethylolbutane, etc.) and their 2 to 4 mer, pentaerythritol, dipentaerythritol, 1,2,4-butanetriol, 1,3,5-pentanetriol, 1,2,6
-Hexanetriol, 1,2,3,4-butane tetrol, sorbitol, sorbitan, sorbitol glycerin condensate, adonitol, arabitol, xylitol, mannitol, and other polyhydric alcohols having 2 to 6 valences are preferable. More preferred polyhydric alcohols are ethylene glycol, propylene glycol, neopentyl glycol, glycerin, trimethylolethane, trimethylolpropane, pentaerythritol and sorbitan.

The fatty acid having 6 to 24 carbon atoms referred to as the component (B) may be a saturated fatty acid or an unsaturated fatty acid. Therefore, the fatty acid may be, for example, linear or branched hexanoic acid, linear or branched heptanoic acid, linear or branched octanoic acid, linear or branched nonanoic acid, or Linear or branched decanoic acid, linear or branched undecanoic acid, linear or branched dodecanoic acid, linear or branched tridecanoic acid, linear or branched tetradecanoic acid, direct Linear or branched pentadecanoic acid, linear or branched hexadecanoic acid, linear or branched heptadecanoic acid, linear or branched octadecanoic acid, linear or branched nonadecanoic acid, direct Linear or branched icosanoic acid, linear or branched henicosanoic acid, linear or branched docosanoic acid, linear or branched tricosanoic acid, linear or branched tetracosa Saturated fatty acids such as acids; linear or branched hexenoic acid, linear or branched heptenoic acid, linear or branched octenoic acid, linear or branched nonenic acid, linear or Branched decenoic acid, linear or branched undecenoic acid, linear or branched dodecenoic acid, linear or branched tridecenoic acid, linear or branched tetradecenoic acid, linear or Branched pentadecenoic acid, linear or branched hexadecenoic acid, linear or branched heptadecenoic acid, linear or branched octadecenoic acid, linear or branched nonadecenoic acid, linear or Branched eicosenoic acid, linear or branched heneicosenoic acid, linear or branched docosenoic acid, linear or branched tricosenoic acid, linear or branched tetracosenoic acid, etc. Unsaturated fatty acids are included in. Of these, saturated fatty acids having 8 to 18 carbon atoms or unsaturated fatty acids having 8 to 18 carbon atoms are particularly preferable.

The component (B) of the present invention is a partial ester of a polyhydric alcohol having a valence of 2 to 10 and a fatty acid having a carbon number of 6 to 24. The partial ester mentioned here means a hydroxyl group in the polyhydric alcohol. Means at least one of the esters remaining in the form of unesterified hydroxyl groups. This partial ester may be a partial ester of a polyhydric alcohol and one type of fatty acid, or may be a partial ester of a polyhydric alcohol and two or more types of mixed fatty acids. Further, the component (B) of the present invention may be composed of one kind of partial ester as defined above, or may be a mixture of two or more kinds of partial esters. The content of the component (B) in the undiluted composition of the present invention is in the range of 2 to 50% by mass, preferably 5 to 40% by mass based on the total amount of the composition.

In the stock solution composition of the present invention, the ratio of the contents of the component (A) and the component (B) must satisfy the following formula (1). _{a 1 / b 1 = 0.2~5 (} 1) wherein the content of the component (A) of a ₁ is the stock solution composition (mass%) indicates, b ₁ is in the stock solution composition (B) The content (mass%) of the component is shown. As shown in equation (1), a ₁
The upper limit of / b ₁ is 5, preferably 4. If the upper limit is exceeded, the particle size of the oil droplets becomes large when the undiluted composition is diluted with water to form a rolling fluid for practical use. . It is customary to pass the used rolling oil through a filter to remove fine contaminants such as metal abrasion powder, but if the oil droplets are large, they cannot pass through the cleaning filter. There is an inconvenience that a fine filter cannot be used for cleaning the oil agent. The lower limit value of a ₁ / b ₁ is 0.2, preferably 0.3. If the lower limit value is less than this value, metal abrasion powder is obtained when the undiluted composition is diluted with water and used as a rolling fluid. Aggregates such as are easily generated, and the surface gloss of the rolled product is reduced.

The component (C) of the present invention is a fatty acid having 6 to 24 carbon atoms and / or sarcoside. 6 to 2 carbon atoms
The fatty acid of 4 may be either saturated fatty acid or unsaturated fatty acid. Therefore, the fatty acid usable as the component (C) is
For example, linear or branched hexanoic acid, linear or branched heptanoic acid, linear or branched octanoic acid, linear or branched nonanoic acid, linear or branched decane Acid, linear or branched undecanoic acid, linear or branched dodecanoic acid, linear or branched tridecanoic acid, linear or branched tetradecanoic acid,
Linear or branched pentadecanoic acid, linear or branched hexadecanoic acid, linear or branched heptadecanoic acid, linear or branched octadecanoic acid, linear or branched nonadecanoic acid, Straight-chain or branched icosanoic acid, straight-chain or branched henicosanoic acid, straight-chain or branched docosanoic acid, straight-chain or branched tricosanoic acid, straight-chain or branched tetracosanoic acid, etc. Saturated fatty acids; linear or branched hexenoic acid, linear or branched heptenoic acid, linear or branched octenoic acid, linear or branched nonenic acid, linear or branched Decenoic acid, straight-chain or branched undecenoic acid, straight-chain or branched dodecenoic acid, straight-chain or branched tridecenoic acid, straight-chain or branched tetradecenoic acid, straight-chain or Branched pentadecenoic acid, straight-chain or branched hexadecenoic acid, straight-chain or branched heptadecenoic acid, straight-chain or branched octadecenoic acid,
Linear or branched nonadecenoic acid, linear or branched eicosenoic acid, linear or branched heneicosenoic acid, linear or branched docosenoic acid, linear or branched tricosenoic acid, Unsaturated fatty acids such as linear or branched tetracosenoic acid are included. Among these, particularly saturated fatty acids having 12 to 18 carbon atoms and 1 carbon atoms
2 to 18 unsaturated fatty acids are preferred. When the above fatty acid is used as the component (C), the fatty acid may be a single type or a mixture of two or more types of fatty acids having different structures.

The sarcoside usable as the component (C) can be represented by the following chemical formula 1.

Embedded image In the formula, R represents an alkyl group or an alkenyl group having 8 to 24 carbon atoms. Specific examples of the substituent R in the chemical formula 1 are as follows: a linear or branched octyl group, a linear or branched nonyl group, a linear or branched decyl group, a linear or branched Undecyl group, straight-chain or branched dodecyl group, straight-chain or branched tridecyl group, straight-chain or branched tetradecyl group, straight-chain or branched pentadecyl group, straight-chain or branched Hexadecyl group, linear or branched heptadecyl group, linear or branched octadecyl group, linear or branched nonadecyl group, linear or branched icosyl group, linear or branched Alkyl groups such as henicosyl group, linear or branched docosyl group, linear or branched tricosyl group, linear or branched tetracosyl group; linear or branched octenyl group Linear or branched nonenyl, straight-chain or branched decenyl, straight-chain or branched undecenyl, straight-chain or branched dodecenyl, straight-chain or branched tridecenyl,
Straight-chain or branched tetradecenyl group, straight-chain or branched pentadecenyl group, straight-chain or branched hexadecenyl group, straight-chain or branched heptadecenyl group, straight-chain or branched octadecenyl group, A linear or branched nonadecenyl group, a linear or branched icosenyl group, a linear or branched henicosenyl group,
An alkenyl group such as a linear or branched docosenyl group, a linear or branched tricosenyl group, or a linear or branched tetracosenyl group can be exemplified. Among these, particularly an alkyl group having 12 to 18 carbon atoms and a carbon number of 1
2-18 alkenyl groups are preferred. When sarcoside is used as the component (C) of the present invention, the sarcoside may be a single kind or a mixture of two or more kinds of sarcoside having different structures. Further, in the present invention, either one of the above-mentioned fatty acid or sarcoside can be used as the component (C), or both of them can be used in combination. The upper limit of the content of the component (C) in the undiluted composition of the present invention is 50% by mass, preferably 45% by mass on the basis of the total amount of the composition, and when it exceeds the upper limit, when diluted with water. However, the emulsification becomes poor and the two layers are separated, which is not preferable. Also,
The lower limit of the content of the component (C) is 5% by mass, preferably 10% by mass based on the total amount of the composition, and if it is less than this lower limit, the emulsification becomes poor when diluted with water, and However, since the particle size of the oil droplets becomes coarse, there is the inconvenience that a fine filter cannot be used for cleaning the rolling fluid, and the rolling property also deteriorates.

The component (D) of the present invention has 1 to 12 carbon atoms,
It is preferably an alkanolamine having 2 to 10 carbon atoms. Examples of this type of alkanolamine include monomethanolamine, dimethanolamine, trimethanolamine, monoethanolamine, diethanolamine, triethanolamine, and mono (n-propanol).
Amine, di (n-propanol) amine, tri (n-propanol) amine, monoisopropanolamine, diisopropanolamine, triisopropanolamine, monobutanolamine (including all isomers), dibutanolamine (all isomers) , Tributanolamine (including all isomers), monopentanolamine (including all isomers), dipentanolamine (including all isomers), tripentanolamine (all isomers) Body), monohexanolamine (including all isomers), dihexanolamine (including all isomers), monoheptanolamine (including all isomers), diheptanolamine (all isomers) Including the body),
Monooctanolamine (includes all isomers), Monononanolamine (includes all isomers), Monodecanolamine (includes all isomers), Monoundecanolamine (includes all isomers) , Monododecanolamine (including all isomers), diethylmonoethanolamine, diethylmonopropanolamine (including all isomers), diethylmonobutanolamine (including all isomers), diethylmonopentanolamine (Includes all isomers), dipropylmonoethanolamine (includes all isomers), dipropylmonopropanolamine (includes all isomers), dipropylmonobutanolamine (includes all isomers) , Dipropylmonopentanolamine (including all isomers), dibutylmonoethanolamine (Including all isomers), dibutylmonopropanolamine (including all isomers), dibutylmonobutanolamine (including all isomers), monoethyldiethanolamine, monoethyldipropanolamine (including all isomers) ), Monoethyldibutanolamine (including all isomers), monoethyldipentanolamine (including all isomers), monopropyldiethanolamine (including all isomers), monopropyldipropanolamine (all Isomers), monopropyldibutanolamine (includes all isomers), monobutyldiethanolamine (includes all isomers), monobutyldipropanolamine (includes all isomers), monobutyldiethanolamine Butanolamine (including all isomers) and the like can be mentioned. Among these, preferred are monoethanolamine, diethanolamine, triethanolamine, mono (n-propanol) amine, di (n-propanol) amine, tri (n).
-Propanol) amine, monoisopropanolamine, diisopropanolamine, triisopropanolamine, monobutanolamine (including all isomers), dibutanolamine (including all isomers), diethylmonoethanolamine, diethylmonopropanolamine (Including all isomers), diethylmonobutanolamine (including all isomers), diethylmonopentanolamine (including all isomers), dipropylmonoethanolamine (including all isomers), Dipropylmonopropanolamine (including all isomers), Dipropylmonobutanolamine (including all isomers), Dibutylmonoethanolamine (including all isomers), Monoethyldiethanolamine, Monoethyldipropanolamine (All of (Including all isomers), monoethyldibutanolamine (including all isomers), monopropyldiethanolamine (including all isomers), monopropyldipropanolamine (including all isomers), monobutyldiethanolamine ( Alkanolamines having 2 to 10 carbon atoms such as all isomers) and monobutyldipropanolamine (including all isomers). As the component (D), each of the above alkanolamines can be used alone, or a mixture of two or more alkanolamines having different structures can also be used. The content of the component (D) in the undiluted composition of the present invention is in the range of 1 to 30% by mass, preferably 2 to 25% by mass based on the total amount of the composition.

The component (E) of the present invention is an amine having 1 to 16 carbon atoms. The amine mentioned here is an aliphatic amine,
Aromatic substituted aliphatic amines, alicyclic amines and aromatic amines are included, but aliphatic amines, aromatic substituted aliphatic amines or alicyclic amines are the preferred amines as component (E). The aromatic-substituted aliphatic amine refers to an aromatic group bonded to the side chain of an alkyl group bonded to a nitrogen atom. Specific examples of amines that can be used as the component (E) are listed as aliphatic amines: monomethylamine, dimethylamine, trimethylamine, monoethylamine, diethylamine, triethylamine, monopropylamine (including all isomers), diamine Propylamine (includes all isomers), Tripropylamine (includes all isomers), Monobutylamine (includes all isomers), Dibutylamine (includes all isomers), Tributylamine (includes all isomers) (Including isomers), monopentylamine (including all isomers), dipentylamine (including all isomers), tripentylamine (including all isomers), monohexylamine (including all isomers) Including), dihexylamine (including all isomers), monoheptylamine (including all isomers), Heptyl amine (including all isomers), (including all isomers) mono octylamine (including all isomers) di-octylamine, mono-nonyl amine (including all isomers),
Monodecylamine (includes all isomers), Monoundecyl (includes all isomers), Monododecylamine (includes all isomers), Dodecyldimethylamine (includes all isomers), Monotridecylamine (Includes all isomers), monotetradecylamine (includes all isomers), monopentadecylamine (includes all isomers), monohexadecylamine (includes all isomers)
And other aliphatic amines having 1 to 16 carbon atoms, among which aliphatic amines having 2 to 12 carbon atoms are preferable. Examples of the aromatic substituted aliphatic amine include monobenzylamine, (1-phenylethyl) amine, (2-phenylethyl) amine (monophenethylamine), dibenzylamine, bis (1-phenylethyl) amine, bis (2- 7 to 1 carbon atoms such as phenylethyl) amine (diphenethylamine)
6 are mentioned, and among them, monobenzylamine and dibenzylamine are preferable. Examples of the alicyclic amine include cycloalkylamines having 5 to 16 carbon atoms such as monocyclopentylamine, dicyclopentylamine, tricyclopentylamine, monocyclohexylamine, dicyclohexylamine, monocycloheptylamine and dicycloheptylamine; (methylcyclopentyl ) Amine (including all substituted isomers), bis (methylcyclopentyl) amine (including all substituted isomers), (dimethylcyclopentyl) amine (including all substituted isomers), bis (dimethylcyclopentyl) amine ( (Including all substitution isomers), (ethylcyclopentyl) amine (including all substitution isomers), bis (ethylcyclopentyl) amine (including all substitution isomers), (methylethylcyclopentyl) amine (all substitutions) (Including isomers), Sus (methylethylcyclopentyl) amine (including all substituted isomers), (diethylcyclopentyl) amine (including all substituted isomers), (methylcyclohexyl) amine (including all substituted isomers), bis (methyl Cyclohexyl) amine (including all substituted isomers), (dimethylcyclohexyl) amine (including all substituted isomers),
Bis (dimethylcyclohexyl) amine (including all substituted isomers), (ethylcyclohexyl) amine (including all substituted isomers), bis (ethylcyclohexyl)
Amine (including all substituted isomers), (methylethylcyclohexyl) amine (including all substituted isomers),
(Diethylcyclohexyl) amine (including all substituted isomers), (methylcycloheptyl) amine (including all substituted isomers), bis (methylcycloheptyl) amine (including all substituted isomers), (dimethyl Cycloheptyl) amine (including all substituted isomers), (ethylcycloheptylamine (including all substituted isomers), (methylethylcycloheptyl) amine (including all substituted isomers), (diethylcycloheptyl) ) Alkylcycloalkylamines having 6 to 16 carbon atoms such as amines (including all substituted isomers) and the like, and particularly 5 to 16 carbon atoms
Cycloalkylamines of are preferred. Further preferred amines as the component (E) of the present invention are aliphatic amines having 2 to 12 carbon atoms, aromatic substituted aliphatic amines having 7 to 16 carbon atoms, cycloalkyl amines having 5 to 16 carbon atoms, Most preferred are aromatic substituted aliphatic amines having 7 to 16 carbon atoms and cycloalkyl amines having 5 to 16 carbon atoms. As the component (E) of the present invention, a single type of each amine described above can be used, or a mixture of two or more types of amines having different structures can also be used. The content of the component (E) in the undiluted composition of the present invention is in the range of 1 to 30% by mass, preferably 2 to 25% by mass based on the total amount of the composition.

In the present invention, it is important to use the alkanolamine as the component (D) and the amine as the component (E) in combination, and when either one of them does not reach the predetermined content, the undiluted composition When a practical rolling oil is prepared by diluting water with water, a preferable emulsion rolling oil cannot be obtained. The stock solution composition of the present invention comprises (D)
It is necessary that the ratio of the contents of the component and the component (E) satisfies the following formula (2). _{e 1 / d 1 = 0.3~3 (} 2) , where the content of the component (D) d ₁ is the stock solution composition (mass%) indicates, e ₁ is in the stock solution composition (E) The content (mass%) of the component is shown. As shown in equation (2), e ₁ / d ₁
The upper limit of 3 is preferable, and 2.5 is more preferable. If the upper limit is exceeded, emulsification becomes poor when the undiluted composition is diluted with water and it is separated into two layers, which is not preferable. Also,
The lower limit value of e ₁ / d ₁ is 0.3, preferably 0.4. If the lower limit value is not satisfied, the particle size of oil droplets becomes large when the undiluted composition is diluted with water, and the rolling oil agent There is an inconvenience that a fine filter cannot be used for cleaning

In the undiluted composition of the present invention, the ratio of the total content of the components (A) and (B) to the total content of the components (D) and (E) is as follows. It is necessary to satisfy the equation (3). (A ₁ + b ₁ ) / (d ₁ + e ₁ ) = 0.6 to 7.5 (3) Here, a ₁ , b ₁ , d ₁ and e ₁ have the same meanings as defined above. The upper limit of (a ₁ + b ₁ ) / (d ₁ + e ₁ ) is 7.
5, preferably 6, and when this upper limit is exceeded,
When the undiluted composition is diluted with water, it is difficult to emulsify, and even if it is emulsified, the particle size of the oil droplets becomes coarse, so that a fine filter cannot be used for cleaning the rolling fluid. Also, (a ₁ + b ₁ ) /
The lower limit value of (d ₁ + e ₁ ) is 0.6, preferably 0.8, and when it is lower than the lower limit value, a rolling oil agent exhibiting good rollability when diluted with water is prepared. Can't get

The stock solution composition of the present invention may contain water as the component (F) in the range of 0 to 50% by mass based on the total amount of the composition. Considering the above, the amount of water is 1 based on the total amount of the composition.
It is preferably in the range of 0 to 40% by mass. As the water as the component (F), tap water, industrial water, ion-exchanged water, distilled water and the like can be used, and the water may be hard water or soft water.

The stock solution composition of the present invention may optionally contain various known additives. Examples of such additives include sulfonate, phosphoric acid and phosphoric acid. Rust inhibitors such as salts and boron compounds; phenol-based, amine-based, sulfur-based, phosphorus-based, chlorine-based antioxidants; nitrogen compounds such as benzotriazole, corrosion inhibitors such as compounds containing sulfur and nitrogen; phenol-based,
Preservatives such as formaldehyde donor compounds and salicylanilide compounds; antifoaming agents such as silicone oils; oily agents such as fatty acids, esters and alcohols; anionic surfactants such as sulfuric acid and sulfonic acid esters; and polyoxyethylene compounds Nonionic surfactants such as Each of these additives can be added to the stock solution composition of the present invention alone or in combination of two or more kinds, and the total amount of these additives is usually 5% by mass or less based on the total quantity of the stock solution composition, preferably Is generally 1% by mass or less.

The stock solution composition of the present invention can be diluted with water to obtain an emulsion-type rolling oil agent suitable as a rolling oil. The dilution ratio is arbitrarily selected depending on the use conditions of the emulsion type rolling oil, but generally, the undiluted composition is diluted with water to a weight ratio of 2 to 100 times, preferably 3 to 70 times, and practical emulsion type rolling is performed. It is customary to obtain an oil solution. In this case, tap water, industrial water, ion-exchanged water, distilled water or the like can be used as the diluting water, regardless of whether it is hard water or soft water. When the stock solution composition of the present invention is diluted with water, water is used as a continuous phase, and an emulsion in which oil components are finely dispersed (emulsion) is obtained, but the average particle size of oil droplets dispersed in water is Thirty
It is preferably 0 nm or less, and particularly preferably 100 nm or less. This is because if the average particle size of the dispersed oil droplets is large, oil pits are likely to be formed, the surface gloss of the rolled product is impaired, and a fine filter cannot be used for cleaning the rolling fluid.

The emulsion type rolling oil agent composition of the present invention (hereinafter, referred to as an oil agent composition) will be described. The oil agent composition of the present invention is based on water and based on the total amount of the composition, 0.1 to 25% by mass, preferably 0.2 to 20% by mass, of the above-mentioned component (A), and 0.1 to 25% by mass, preferably 0.2 to 20% by mass of the (B) component. Containing 0.2 to 25 mass% of the component (C),
The component (D) is contained in an amount of 0.05 to 15% by mass, and the component (E) is further contained in an amount of 0.05 to 15% by mass. And
In the oil agent composition of the present invention, the ratio of the contents of the component (A) and the component (B) needs to satisfy the following formula (4). _{a 2 / b 2 = 0.2~5 (} 4) , where the content of the component (A) of a ₂ is oil composition (wt%) indicates, b ₂ is in the oil agent composition (B) The content (mass%) of the component is shown. As shown in equation (4), a ₂
The upper limit of / b ₂ is 5, preferably 4. When the upper limit is exceeded, the oil droplets dispersed in the oil agent composition become coarse, and there is a disadvantage that a fine filter cannot be used for cleaning the oil agent composition. is there. The lower limit of a ₂ / b ₂ is 0.2, preferably 0.3. If this lower limit is not satisfied, rolling treatment of the oil agent composition tends to produce aggregates such as metal abrasion powder, The surface gloss of the rolled product decreases, which is not preferable. In the rolling oil agent composition of the present invention, the upper limit of the content of the component (C) is 25% by mass, preferably 20% by mass on the basis of the total amount of the composition, and the lower limit is 0. It is 2% by mass, preferably 0.5% by mass.
When the content of the component (C) exceeds the upper limit value and below the lower limit value, the emulsified state of the oil agent composition is not preferable, and particularly when it falls below the lower limit value, oil droplets can be maintained even if the emulsified state can be maintained. Therefore, the oil agent composition cannot be expected to have good rolling property, and a fine filter cannot be used for cleaning the oil agent composition. The oil composition of the present invention,
It is necessary that the ratio of the contents of the component (D) and the component (E) satisfies the following formula (5). _{e 2 / d 2 = 0.3~3 (} 5) , where the content of the component (D) d ₂ is the oil agent composition (wt%) indicates, e ₂ is in the oil agent composition (E) The content (mass%) of the component is shown. The upper limit of this ratio e ₂ / d ₂ is 3, preferably 2.5, and when it exceeds the upper limit, the oil agent composition becomes poor in emulsification and separates into two layers. On the other hand, e ₂ /
The lower limit value of d ₂ is 0.3, preferably 0.4, and when it is lower than the lower limit value, the oil droplets become coarse and a fine filter cannot be used for cleaning the oil agent composition. Further, in the rolling oil agent composition of the present invention, the ratio of the total content of the components (A) and (B) to the total content of the components (D) and (E) is as follows: It is necessary to satisfy the formula (6). (A ₂ + b ₂ ) / (d ₂ + e ₂ ) = 0.6 to 7.5 (6) Here, a ₂ , b ₂ , d ₂ and e ₂ have the same meanings as defined above. The upper limit of the ratio of (a ₂ + b ₂ ) / (d ₂ + e ₂ ) is 7.5, preferably 6, and when the ratio exceeds the upper limit, the oil droplets of the oil agent composition become coarse and The pits are likely to be generated, and the surface gloss of the rolled product may be impaired. The lower limit value of the ratio of (a ₂ + b ₂ ) / (d ₂ + e ₂ ) is 0.6, preferably 0.8. If this lower limit value is not satisfied, an oil agent composition exhibiting good rollability is obtained. Can't get In the oil agent composition of the present invention, the amount of water as a base can be arbitrarily adjusted, but in general, the amount of water is 99.5 to 50 mass% based on the total amount of the oil agent composition, preferably It is in the range of 99.0 to 65 mass%. The base water may be tap water, industrial water, ion-exchanged water, distilled water, or the like, and may be hard water or soft water. The oil agent composition of the present invention has water as a continuous phase and is in an emulsion (emulsion) state in which an oil component is finely dispersed, and the average particle size of oil droplets dispersed in water is 300 nm or less, preferably 100 nm. Below. In addition, as a precaution, the oil agent composition of the present invention can be prepared by diluting the stock solution composition described above with water, and the oil agent composition of the present invention can be stored in a state of low water content. When actually used, water can be appropriately added to restore the predetermined composition.

As described above, the oil agent composition of the present invention containing a predetermined amount of components (A) to (E) based on water is
It is used as it is for rolling of metal materials and exerts a sufficient effect as a processing oil. If desired, various known additives can be added to the oil agent composition. Examples of the additive that can be added include those described above as the additive that can be added to the undiluted composition, but the total content is generally 2.5% by mass or less based on the total amount of the oil agent composition, Is 0.5% by mass or less.

The rolling oil composition of the present invention is used as a rolling oil for cold rolling metal materials such as stainless steel, copper, aluminum and their alloys, and also hot rolling aluminum and aluminum alloys. In this case, it can be preferably used as a rolling oil. The rolling oil agent composition of the present invention is particularly preferable as a rolling oil agent for cold rolling because it can impart good gloss to the surface of the rolled product. The rolling oil composition of the present invention also comprises
It can also be used as a metal working oil such as a cutting oil, a polishing oil, a pressing oil, a drawing oil, a heat treatment oil, and an oil agent for producing a DI can.

[0022]

EXAMPLES The contents of the present invention will be described more specifically below with reference to Examples and Comparative Examples, but the present invention is not limited thereto. Various rolling oil agent stock solution compositions were prepared with the compositions shown in Table 1, and then these compositions were diluted with tap water at a dilution rate to obtain rolling oil agent compositions. The components used for preparing the stock solution composition are as follows. (A) component; A1: paraffinic mineral oil (kinematic viscosity 32 cSt at 40 ° C.) A2: butyl stearate A3: trimethylolpropane trioleate (B) component; B1: glycerine monooleate B2: trimethylolpropane monooleate (C) Component; C1: oleic acid C2: oleyl sarcoside (D) component; D1: triethanolamine D2: diethanolamine (E) component; E1: dicyclohexylamine E2: dibenzylamine (F) component; tap water Next, each The rolling oil composition was evaluated for appearance and filterability, and was also evaluated for rollability and gloss of the metal surface after rolling. The results are shown in Tables 1 and 2. Rolling conditions Rolled material: Stainless steel (SUS430 2B material) Thickness 0.5 mm x width 50 mm Work roll diameter: 51 mm φ Work roll roughness: Ra 0.03 μm Rolling speed: 100 m / min Reduction ratio: 25% (in the rolling property test 25-60%) Oil supply method: Before the rolling rolls, the rolling oil agent compositions used in Examples and Comparative Examples were individually sprayed onto the material to be rolled and the rolling rolls using nozzles. Evaluation method Appearance: The rolling oil composition used in the Examples and Comparative Examples was stirred for 5 minutes and then left for 24 hours, and when it was a semitransparent emulsion, it was ○, and the emulsion was clouded. The samples were evaluated as Δ, and the samples in which the separated oil was observed were evaluated as x. Incidentally, in the case of ×, it was not practically usable, and therefore other tests were omitted. Filterability: Rolling oil composition 50 m used in Examples and Comparative Examples
l was filtered with a water-jet suction filter using a membrane filter (0.22 μm), and if the filtration was completed within 5 minutes, ○,
When the filtration was not completed even after 5 minutes, x was given. Rollability: After rolling 3 times under the rolling condition (reduction rate of 25%), rolling is started at a reduction rate of 30% in the fourth rolling, and then rolling is performed by successively increasing the reduction rate to obtain the maximum reduction rate that can be rolled. I asked. Glossiness: The gloss of the surface of the rolled material after being rolled three times under the rolling condition (reduction rate of 25%) was measured by SM color computer (model SM-2; manufactured by Suga Test Instruments Co., Ltd.) with a right angle of 6
It was determined by the Gloss value at 0 °.

[0023]

[Table 1]

[0024]

[Table 2]

As is clear from the results shown in Table 1, all the rolling oil agent compositions of Examples 1 to 13 according to the present invention are translucent emulsions and have excellent filterability. Further, the rolling property and the gloss of the rolled material after rolling are sufficiently excellent. On the other hand, in each composition of the comparative example in which each component is not contained in the amount or ratio defined by the present invention, the emulsification becomes poor and the emulsion state is not obtained (Comparative Examples 4, 6, 10, 11 and 12), even when it is in an emulsion state, the oil droplets become coarse and the glossiness is
Poor filterability (Comparative Examples 2, 3, 8 and 9). Also,
Even in the emulsion state composed of fine particles, when the amount of the component (A) is smaller than that of the component (B) (Comparative Examples 1 and 7), the total amount of the components (A) and (B) is When it is less than the predetermined value (Comparative Example 5), the rolling property and the gloss of the rolled material after rolling are inferior to those of the composition of the present invention.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location C10M 105: 58) C10N 40:20 (72) Inventor Junichi Shibata 8 Chidori-cho, Naka-ku, Yokohama-shi, Kanagawa Address: Central Research Laboratory of Nippon Sekiyu Co., Ltd. (72) Inventor Yoshitaka Natsume 8 Chidori-cho, Naka-ku, Yokohama-shi, Kanagawa Inside Central Research Institute of Nippon Sekiyu Co., Ltd.

Claims (2)

[Claims] 1. The total amount of rolling oil concentrate composition (A)
One or more base oils selected from mineral oils, synthetic oils and fats and oils, 2 to 50% by mass, (B) partial ester of 2 to 10 valent polyhydric alcohol and C 6 to C 24 fatty acid, 2 to 5
0% by mass, (C) fatty acid having 6 to 24 carbon atoms and / or sarcoside, 5 to 50% by mass, (D) having 1 to 12 carbon atoms
Alkanolamine, 1 to 30% by mass, (E) amine having 1 to 16 carbon atoms, 1 to 30% by mass, and (F) water,
0 to 50% by mass, and (A) component,
A rolling oil solution concentrate composition in which the contents of the component (B), the component (D) and the component (E) satisfy the following formulas (1) to (3). a ₁ / b ₁ = 0.2 to 5 (1) e ₁ / d ₁ = 0.3 to 3 (2) (a ₁ + b ₁ ) / (d ₁ + e ₁ ) = 0.6 to 7.5 ( 3) where a ₁ is the content (mass%) of the component (A) based on the total amount of the rolling oil concentrate composition, and b ₁ is the content (mass%) of the component (B) based on the total amount of the rolling oil stock solution composition. ), D ₁ is the content (mass%) of the component (D) based on the total amount of the rolling oil concentrate composition, and e ₁ is the content (mass%) of the component (E) on the basis of the total amount of the rolling oil stock solution composition. Shown respectively. 2. One or more base oils selected from the group consisting of (A) mineral oils, synthetic oils and fats, based on the total amount of the rolling oil composition, based on water, 0.1 to 25% by mass, and (B). Partial ester of 2- to 10-valent polyhydric alcohol and fatty acid having 6 to 24 carbon atoms, 0.1 to 25 mass%, (C) fatty acid having 6 to 24 carbon atoms and / or sarcoside, 0.2 to 25 mass %,
(D) C1-C12 alkanolamine, 0.05
˜15% by mass, and (E) an amine having 1 to 16 carbon atoms,
Rolling containing 0.05 to 15 mass% and the contents of the components (A), (B), (D) and (E) satisfying the following formulas (4) to (6): Oil agent composition. _{a 2 / b 2 = 0.2~5 (} 4) e 2 / d 2 = 0.3~3 (5) (a 2 + b 2) / (d 2 + e 2) = 0.6~7.5 ( 6) where a ₂ is the content (mass%) of the component (A) based on the total amount of the rolling oil composition, b ₂ is the content (mass%) of the component (B) based on the total amount of the rolling oil composition, d ₂ represents the content (mass%) of the component (D) based on the total amount of the rolling oil composition, and e ₂ represents the content (mass%) of the component (E) based on the total amount of the rolling oil composition.