JP2000017285A - Metal processing lubricating oil composition and treated aluminum plate material using same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide metal processing lubricating oil compositions which are used in treating metal surfaces of aluminum plate materials or the like and are coated on the can surfaces to improve moldability of the drawing processing with ironing, particularly to prevent the galling (marring) of the can surfaces. SOLUTION: A desired metal processing lubricating oil composition is obtained by incorporating (A) a 10-40C α-olefin, (B) a >=12C unsaturated fatty acid having one or more double bonds in the skeleton, and (C) a phosphate ester into a mineral oil type lubricating oil base oil and/or a synthetic oil type lubricating oil base oil. A desired surface treated aluminum plate material is obtained by coating this composition on the surface of the aluminum plate material having a degree of roughness (Ra) of 0.2-0.6 μm in an amount of 100 to 500 mg/m2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lubricating oil composition for metal working and a surface-treated aluminum sheet material using the same.
More specifically, a lubricating oil composition for metalwork applied to the surface of a can material to improve the formability of drawing and ironing using an aluminum plate material, and in particular to prevent galling of the can surface (prevention of damage), and The present invention relates to an aluminum plate material surface-treated using the same.

[0002]

2. Description of the Related Art Drawing and ironing cans are generally called DI cans (hereinafter simply referred to as DI cans), and are classified into aluminum DI cans and steel DI cans according to their materials. These processing steps are classified into a drawing step performed by a cupping press and a subsequent redrawing / ironing step performed by a body maker. Among these, one of the appearance defects occurring in the aluminum DI can is a so-called galling. This results in scratches (scratches) on the side wall of the can parallel to the direction of ironing, which not only impairs the appearance of the product can, but also causes troubles such as breakage of the can during ironing. It may cause it.

[0003] The cause of the galling as described above is that the ironing die comes into direct contact with the aluminum surface due to poor lubrication of the surface of the work material during ironing, and aluminum metal pieces and hard particles such as Al ₂ O ₃ are formed. It is believed that the adhesive adheres to the ironing mold, and that the adhered substance damages the side wall of the aluminum can during ironing. For this reason, several types of lubricating oils have conventionally been used in the drawing / ironing process, and measures have been made to prevent galling due to such poor lubrication. That is, lubricating oil is applied in advance (hereinafter simply referred to as “re-oil”) to the surface of a thin sheet material wound in a coil shape, which is a can material, before the can-making process. Lubricating oil called body maker coolant or simply coolant is used for the ironing process. For example, in JP-A-10-85872, conventionally, an emulsion type lubricating oil has been used for both drawing and ironing,
For example, a water-insoluble lubricating oil, which is a paraffinic mineral oil lubricating oil composition, is used for drawing, and then an iron ester of a trihydric alcohol and a C18 fatty acid is used for ironing,
Use of a water-soluble lubricating oil with a low oil content consisting of monobasic or dibasic fatty acids, ricinoleic acid condensates, fatty acids having 18 carbon atoms, mono-triethanolamine, mono-tricyclohexylamine, water, etc. Is described.

[0004] Of these, the application of cupping oil is sometimes omitted for saving labor, and the coolant has a component configuration that focuses on cooling of the mold, so that all of them serve to suppress galling. The role is said to be smaller than re-oil. For this reason, lubricating oil used as re-oil is extremely important for preventing galling.

In recent years, further reduction in the thickness of aluminum DI cans has been demanded, and the speed of can making has been further increased. This is the actual situation.

A3004 alloy of the semi-continuous casting (DC) type, which is generally widely used for aluminum DI cans, has desired mechanical properties such as high strength, high formability, low work hardening, and the like. Exhibits an excellent galling suppressing effect due to the intermetallic compound contained in. However, if this alloy is used as a continuous cast rolling (CC) type aluminum plate,
In the casting process, the form of the crystallized material differs, and no galling suppression effect can be obtained unlike the DC method. Further, in recent years, from the viewpoint of improving recyclability, an aluminum DI can called a unialloy has been studied. This is because, in the conventional aluminum DI cans, different alloys such as DC3004 alloy for the body and DC5000 series alloy for the can lid were unified to either alloy or newly developed alloy to improve recyclability. It is to try to raise it. At this time, DC 3004 is used as a conventional means for suppressing galling.
Relying on the material properties of the alloy may not be able to select the best alloy for Unialloy. In these respects, there has been a demand for an easy and reliable means for suppressing the galling, which does not rely on the material characteristics as much as possible.

[0007]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems by applying a lubricating oil to a metal surface in order to enhance the lubricity of the metal surface in such a situation. It is an object to provide a lubricating oil composition. That is, an object of the present invention is to provide a lubricating oil composition for metalworking that improves the formability of drawing and ironing when making cans using an aluminum plate material and is effective in preventing galling of the can surface. It is.

[0008]

Means for Solving the Problems The inventors of the present invention have conducted intensive studies to achieve the above-mentioned object, and as a result, have found that a mineral oil-based lubricating base oil and / or a synthetic oil-based lubricating base oil have It has been found that by applying a lubricating oil composition composed of a specific component having solubility to an aluminum plate having specific surface characteristics, it is possible to suppress galling generated on a side wall of a can during can manufacturing. The present invention has been completed based on such findings.

That is, the present invention relates to a method for producing (A) a carbon-based lubricating base oil in a mineral oil-based lubricating base oil and / or a synthetic oil-based lubricating base oil.
Metal processing characterized by comprising an α-olefin of from 40 to 40, (B) an unsaturated fatty acid having 12 or more carbon atoms and having at least one double bond in the skeleton, and (C) a phosphate ester. The present invention provides a lubricating oil composition for use. Further, the present invention provides the above-mentioned lubricating oil composition for metal working on a surface of an aluminum plate having a roughness (Ra) of 0.2 to 0.6 μm.
Another object of the present invention is to provide a surface-treated aluminum plate which is coated in a range of 0 to 500 mg / m ² .

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The lubricating oil composition for metalworking of the present invention comprises a mineral oil-based and / or synthetic oil-based lubricating base oil,
(A) an α-olefin having 10 to 40 carbon atoms as a component,
Component (B) having 12 or more carbon atoms and one double bond in the skeleton
It is characterized by being blended with at least one unsaturated fatty acid and at least one phosphate ester as the component (C). As described above, the lubricating oil composition for metal working according to the present invention is applied to the surface of an aluminum or steel sheet material, particularly an aluminum sheet material in advance, to reduce the amount of drawing and ironing when processing an aluminum DI can. It is a lubricating oil composition that effectively improves formability and effectively prevents (or suppresses) galling generated on the surface of a can side wall or the like in a drawing step and a redrawing / ironing step. As the lubricating base oil in the present invention,
Various types of mineral oils and synthetic oils can be used.Examples of mineral oils include mineral oils such as paraffinic, naphthenic, and aromatic oils, and poly-α-olefins as synthetic oils. Synthetic oils such as isopropylene oligomers, isobutylene oligomers, polyalkylene glycols (eg, polyethylene glycol and polypropylene glycol), hindered esters, silicone oils, and fluorinated oils. As the base oil of the present invention, the former mineral oil alone or the latter synthetic oil alone may be used, or both of them may be appropriately mixed and used.

For such a lubricating base oil, component (A), which is one of the main components, is an α-olefin having 10 to 40 carbon atoms. If the number of carbon atoms is less than 10, the above-mentioned effects cannot be obtained. If the number of carbon atoms exceeds 40, a precipitate is formed, particularly at a temperature lower than ordinary temperature, thereby deteriorating the applicability. From such a viewpoint, preferably, an α-olefin having 10 to 26 carbon atoms is suitably used. As the α-olefin having 10 to 40 carbon atoms used in the present invention, various ones can be mentioned.
Examples thereof include -decene, 1-dodecene, 1-tetradecene, 1-hexadecene, 1-octadecene, and 1-eicosene. In the present invention, these α-olefins are appropriately selected and used, but preferably 1-octadecene, 1-hexadecene and the like are preferably used.
The amount of these α-olefins may be appropriately selected depending on the situation, but is preferably used at 5 to 50% by weight based on the entire lubricating oil composition. If the amount is less than 5% by weight, the above-mentioned effects cannot be sufficiently expected. If the amount exceeds 50% by weight, the effect corresponding to the amount is not sufficiently improved, and the cost is disadvantageous. is there. From such a viewpoint, it is more preferably used at 10 to 50% by weight.

As the unsaturated fatty acid of the component (B), an unsaturated fatty acid having 12 or more carbon atoms and having at least one double bond in the skeleton, particularly an oil-soluble fatty acid is used. Here, when the number of carbon atoms is less than 12, the above-mentioned effect is not obtained, and the saturated fatty acid having no double bond is relatively hard to dissolve in the base oil, and tends to form a precipitate at a temperature lower than ordinary temperature, It is difficult to use. From such a viewpoint, an unsaturated fatty acid having 12 to 20 carbon atoms is more preferably used.

Although there are various types of such unsaturated fatty acids, in general, monoenoic acids such as lindelic acid, tunic acid, palmitoleic acid, petroselinic acid, oleic acid, elaidic acid and vaccenic acid, linoleic acid, Linoleic acid, γ-linolenic acid, linolenic acid, bishomo-γ
-Non-conjugated polyenoic acids such as linolenic acid and achidonic acid, conjugated polyenoic acids such as catalpic acid, jarcaric acid, calendic acid, bunnic acid, α-eleostearic acid, and parinaric acid, dimorphic acid, corlic acid, and lican Oxyconjugated polyenoic acid such as acid, ricinoleic acid, unsaturated monohydroxy acid such as α-oxylinolenic acid, resquelleric acid, vernolic acid, epoxy acid such as coronic acid, keto acid such as ricanoic acid, etc. Can be In the present invention, linolenic acid, linoleic acid, oleic acid and the like are particularly preferably used. The amount of these unsaturated fatty acids may be appropriately determined depending on various situations, but is usually used at 3 to 30% by weight based on the whole composition.
If the amount is less than 3% by weight, the above-mentioned effects cannot be sufficiently exerted. If the amount exceeds 30% by weight, the effect corresponding to the amount cannot be sufficiently exhibited. From such a viewpoint, it is more preferable to use 5 to 20% by weight.

The phosphoric ester of the component (C) is added as an extreme pressure agent, and the types thereof are preferably tri / di / monoalkyl / allyl phosphates, phosphites, Hydrogen phosphites are used, and those in which the carbon skeleton of the ester group of the phosphate ester is an alkyl group having 12 to 18 carbon atoms are more preferably used. As such a phosphate, generally, for example, butyl acid phosphate, 2-ethylhexyl acid phosphate, lauryl acid phosphate, oleyl acid phosphate, stearyl acid phosphate, dibutyl hydrogen phosphate, dilauryl hydrogen phosphate Phyto, dioleyl hydrogen phosphite, distearyl hydrogen phosphite, diphenyl hydrogen phosphite, trioleyl phosphate, triisopropyl phosphite. In the present invention, preferred are di / monoalkyl phosphates, trialkyl phosphites, and hydrogen phosphites. The amount of these phosphates may be appropriately determined depending on various situations, but is usually 1 to 3 based on the whole composition.
10% by weight. If the amount is less than 1% by weight, there is a concern that the effect is not sufficiently exhibited.

Further, in the lubricating oil composition for metal working of the present invention, in addition to the components (A), (B) and (C),
In order to further improve the above-mentioned effects, the amide (amide compound) of the polyamine and the fatty acid of the component (D) and / or the molecular weight of the component (E) of 50,000 to 300,0.
00 organic polymers. Among them, the amide compound as the component (D) has an effect of dispersing sludge generated at the time of drawing and ironing processing so as not to partially adhere. From such a viewpoint, those having a molecular weight of preferably 300 to 700, particularly about 500, and an amino group partially remaining in the molecule of the amide compound are suitably used.

Therefore, as the amide compound of the component (D) in the present invention, a partial amide compound of an aliphatic carboxylic acid and an amine compound is suitably used. Here, generally, as the aliphatic carboxylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, oleic acid, linoleic acid, eicosanoic acid, behenic acid, triacontanic acid, undecylenic acid, linolenic acid And carboxylic acids having 8 to 24 carbon atoms such as erucic acid. On the other hand, examples of the amine compound to be reacted with these carboxylic acids include diethylenetriamine, triethylenepentamine, triethylenetetraamine, tetraethylenepentamine, hexaethylenepentamine, heptaethyleneoctamine, tetrapropylenepentamine, and hexabutyleneheptaamine. Polyalkylene polyamine (provided that the alkylene group has 2 carbon atoms)
To 4) or alkanolamines such as monoethanolamine and diethanolamine. In the present invention, a partial amide compound of isostearic acid and triethylenepentamine is particularly preferably used.

The amount of the component (D) is usually 1 to 5% by weight based on the whole composition. If it is less than 1% by weight, the dispersing effect cannot be sufficiently exhibited, and if it exceeds 5% by weight, the corresponding effect cannot be sufficiently expected, which is uneconomical. The organic polymer as the component (E) has a molecular weight (particularly, weight average molecular weight) of 50,000 to 300,000.
0 polymer or copolymer, preferably an olefin copolymer, particularly an ethylene-propylene copolymer. This component (E) is added mainly to improve the plate-out amount of the lubricating oil during drawing and ironing. The amount may be appropriately determined depending on various situations, but is usually from 0.5 to 3% by weight based on the whole composition. If it is less than 0.5% by weight, the effect of improving the plate-out amount cannot be sufficiently exhibited,
If the content exceeds 3% by weight, the effect corresponding to the compounding amount cannot be expected, which is disadvantageous in cost, and may adversely affect the washing step after drawing and ironing.

In addition to these components, known additives such as antioxidants, corrosion inhibitors, defoamers and preservatives commonly used in lubricating oils may be added as appropriate. Further, in the present invention, when performing electrostatic coating, to reduce the volume resistivity of the composition to improve its oil coating property, or
In order to facilitate degreasing after ironing, a normal nonionic surfactant may be appropriately added. Nonionic surfactants used for such purposes generally include:
Alkyl polyoxyethylene ether, alkyl polyoxyethylene, polyoxypropylene ether, polyoxyethylene alkyl ether, polyoxyethylene alkyl phenyl ether, fatty acid polyoxyethylene ester, fatty acid polyoxyethylene sorbitan ester, fatty acid polyoxyethylene sorbitol ester,
Polyoxyethylene castor oil, alkyl polyoxyethylene amine, polyhydric alcohol type and alkyd amide type; fatty acid sorbitan ester, fatty acid polyglycerin ester, fatty acid sucrose ester, other silicone type, polyether modified, alkyl aralkyl polyether modified, epoxy Examples include various compounds such as polyether-modified, alcohol-modified, amino-modified, fluorine-modified, epoxy-modified, and mercapto-modified.

The lubricating oil composition of the present invention has a low kinematic viscosity.
Although there is no particular limitation, the formation of oil film and oil coating properties, degreasing
Considering the properties, the kinematic viscosity at 40 ° C. is 40 to 200.
mm ^Two/ Sec is preferable. 40mm
^Two/ Sec, oil film during drawing / ironing
The lubrication effect is reduced due to easy cutting, while 200 mm ^Two
/ Sec, the oiling and degreasing properties deteriorate,
This may cause problems in sex. Think about these balances
And especially 60-150mm^Two/ Sec is preferred
is there.

When applying the lubricating oil composition of the present invention to an aluminum plate and performing metal working such as drawing and ironing,
The amount (application amount) of the lubricating oil composition to be applied to the aluminum plate varies depending on the situation and cannot be determined uniquely, but is usually 100 to 500 mg / m ² . If the coating amount is less than 100 mg / m ² , the desired effect cannot be sufficiently exerted due to a shortage of lubricating oil in processing such as drawing and ironing, while if it exceeds 500 mg / m ² ,
The effect corresponding to the used amount is not improved, and it is not only uneconomical, but also has a possibility that the lubricating oil may not be completely cleaned in the cleaning step of the can and may have an adverse effect.

The surface roughness (Ra) of the aluminum plate on which the lubricating oil composition of the present invention is applied has an effect of physically retaining the lubricating oil composition on the surface during drawing and ironing due to the unevenness. The effect is that when the surface roughness is measured at a right angle to the rolling direction, Ra is 0.2 to 0.2.
It is maximized when it is 6 μm. Where Ra is 0.2
In the case of less than μm, the effect of retaining the lubricating oil is not sufficient because the surface irregularities are too small. Conversely, in the case of exceeding 0.6 μm, the effect of retaining the lubricating oil is sufficient, but the convexity of the surface is The surface pressure at the time of contact with the mold during processing increases, and there is a possibility that seizure may occur locally.

Further, in the aluminum plate to which the lubricating oil composition of the present invention is applied, the rolling oil remaining on the surface of the aluminum plate after rolling is removed by a washing step before applying the lubricating oil composition of the present invention. It is desirable to keep. This indicates the surface adsorption of the unsaturated fatty acid as the component (B) of the lubricating oil composition of the present invention and the reaction of the α-olefin as the component (A) and the phosphate ester as the component (C) on the newly formed surface of the lubricating oil composition. This is because the remaining rolling oil inhibits and reduces the expected effect of the present invention. From this perspective,
50 mg / m ^{2 of} rolling oil remaining on the aluminum plate surface
Hereinafter, it is particularly desirable to remove the amount to 30 mg / m ² or less. The washing of the aluminum plate after rolling may be performed by a dipping method or a spray method using, for example, hot water, an acidic agent, an alkaline agent, an organic solvent, or the like. Just do it.

By using an aluminum plate that satisfies these conditions, an aluminum DI can with suppressed galling can be obtained irrespective of the alloy components and the production method. Above all, the aluminum plate manufactured by the continuous casting and rolling method requires relatively little capital investment and running cost, and by using this, the cost of the aluminum DI can can be reduced.

[0024]

The present invention will be described in more detail with reference to the following examples, but the present invention is not limited to these examples. The processing conditions and evaluation methods for cans in the following Examples and Comparative Examples were based on the following criteria. 1. Re-oiling of lubricating oil composition A predetermined amount of the lubricating oil described in each of the examples and comparative examples was applied (re-oiled) to the aluminum plate described in each of the examples and comparative examples by spraying with a solvent dilution, followed by production. The galling suppression effect was evaluated by a can test. 2. Can making test conditions Under the following conditions, an aluminum plate from which lubricating oil was re-oiled was squeezed and iron-made to make a can using an iron can making machine.・ Cupping press Cupping oil: Not used Drawing ratio: 1.64 Drawing speed: 100 strokes / min ・ Body maker coolant: Commercial emulsion type lubricating oil Thickness reduction rate: 63% Redrawing ・ Ironing speed: 230 strokes / min Make 100 cans in a row,
After the 0th can was washed with a neutral detergent, the degree of galling on the outer surface was visually classified according to the following five levels, and "o" or more was judged to have a galling inhibiting effect. ◎: No galling was observed. : Inconspicuous galling is observed on the side wall of the can. Δ: Some galling is seen on the side wall of the can. Δ ×: Many gallings are observed on the side wall of the can. ×: Galling is observed over the entire side wall of the can. 3. Kinematic viscosity is a kinematic viscosity at 40 ° C. measured according to JIS K2283. 4. Roughness Roughness is a value in a direction perpendicular to the rolling direction measured according to JIS B0601.

The types of aluminum plate used in the present embodiment are as follows. DC5052-H19: Conventionally generally used aluminum plate material obtained by semi-continuous casting (DC) of A5052 alloy DC3004-H19: Aluminum plate material of conventionally generally used aluminum DI can obtained by semi-continuously casting (DC) A3004 alloy CC3004-H19 : Aluminum plate manufactured by continuous casting and rolling (CC) method of A3004 alloy

Example 1 DC505 having a thickness of 0.30 mm and a roughness Ra of 0.324 μm
2-H19 aluminum sheet was coated with seven kinds of lubricating oils of oil 1 to oil 7 of the lubricating oil composition for metal working according to the present invention described in Table 1 (hereinafter simply referred to as the present lubricating oil), Each was applied at 290 to 315 mg / m ² for re-oiling. Next, using the test plate, each was molded into a can having an outer diameter of 66 mm by a drawing / ironing can device under the molding conditions described above. The obtained cans were visually evaluated for the presence or absence of galling on the side wall of the cans in accordance with the above-mentioned can making test, and the results are shown in Table 1-1. As is clear from the results shown in Table 1, in the lubricating oil compositions according to the present invention, Oil 1 to Oil 7,
It can be clearly seen that the galling is effectively controlled even though the aluminum plate is DC5052 having poor ironing formability. Comparative Example 1 The aluminum plate used in Example 1 was subjected to a canning test in the same manner as in Example 1 for three types of oils 8 to 10 that did not satisfy the composition of the lubricating oil of the present invention. The results are shown in Table 1-2. It is well understood that in the oils 8 to 10 of the comparative examples, remarkable galling occurred in all the cans.

[0027]

[Table 1]

[0028]

[Table 2]

Mineral oil 1: kinematic viscosity at 40 ° C. is 433.8 mm ² /
sec naphthenic mineral oil mineral oil 2: 40 ° C. kinematic viscosity of 408.8mm ² / sec of paraffinic mineral oil mineral oil 3: 40 ° C. kinematic viscosity of 3.129mm ² / sec paraffinic mineral oil synthetic oil of 1: 100 ° C. Polyisobutylene having a kinematic viscosity of 4600 mm ² / sec Synthetic oil 2: polyisobutylene having a kinematic viscosity of 100 ° C and 850.0 mm ² / sec Synthetic oil 3: polypropylene glycol having a kinematic viscosity of 440.5 mm ² / sec at 40 ° C. α-olefin: 1-octadecene unsaturated fatty acid: oleic acid phosphate: dioleyl hydrogen phosphite amide: partial amide compound of tetraethylenepentamine and isostearic acid EPO: ethylene-propylene random polymer having a molecular weight of about 10,000

Example 2 The same operation as in Example 1 was performed, except that the aluminum plate of DC5052-H19 had a roughness of Ra = 0.253 μm and 0.408 μm. Table 2 shows the obtained results. As is clear from Table 2, the roughness Ra of the used aluminum plate was 0.2 to 0.6.
It can be seen that an aluminum DI can without galling can be obtained if it has an appropriate roughness in the range of μm. Comparative Example 2 In Example 2, the roughness of the aluminum plate used was Ra.
= 0.112 μm and Ra = 0.665 μm,
And the roughness was Ra = 0.408 μm, but the same operation as in Example 2 was performed for the one having a re-oil amount of 55 mg / m ² . As is evident from Table 2, when the roughness Ra of the used aluminum plate was out of the range of 0.2 to 0.6 μm, slightly more galling occurred. Also,
If the amount of re-oil drops below 100 mg / m ² , 100
Many gallings were observed in continuous cans.

[0031]

[Table 3]

Example 3 In the aluminum plate having a roughness Ra = 0.408 μm used in Example 2, cold rolling oil remaining on the surface before re-oiling was washed and removed by spraying pure water at 70 ° C. , Except for reducing the residual oil on the surface of the aluminum plate,
The evaluation was carried out in a can making test in the same manner as in Example 1. Table 3 shows the results. In this example, the canning test was performed for 1
The evaluation was performed by extending to the 100th and 500th cans. As is evident from Table 3, by removing and reducing the rolling residual oil on the plate surface by hot water spray cleaning, no galling occurs and the effect is maintained even in a continuous can of 500 cans. I understand. Comparative Example 3 The same can-making test as in Example 3 was performed, except that the same aluminum plate was not washed in Example 3. Table 3 shows the results. As is clear from Table 3, the occurrence of galling was observed to a lesser extent than in Example 3 due to the effect of the remaining cold rolling oil.

[0033]

[Table 4]

Example 4 A cleaning treatment was carried out in the same manner as in Example 3, except that the material was changed to DC3004-H19 plate and CC3004-H19 plate. It was evaluated by a can test. Table 4 shows the results. As is evident from Table 4, not only the DC type aluminum plate coated with the lubricating oil 1 of the present invention but also the CC
It can be seen that no galling occurred in the drawing or ironing can processing even in the rolled aluminum plate. Comparative Example 4 In Example 4, except that the lubricating oil to be applied was oil 8 described in Comparative Example 1, that is, a lubricant containing no α-olefin, the same procedure was performed on the CC-type aluminum plate of Example 4, Then, the evaluation was performed in the same manner as in Example 1 by a can making test. Table 4 shows the results. As is clear from the reference example in Table 4, in the aluminum plate of DC3004-H19 originally excellent in ironing formability, even though the lubricating oil is oil 8, there is no problem of galling.
In the case of the aluminum plate 19, it is well understood that the lubricating oil remarkably generates galling when the oil 8 is used.

[0035]

[Table 5]

[0036]

When the lubricating oil composition and the aluminum plate according to the present invention are applied to can making, the lubricating properties at the time of drawing and ironing are improved, so that the galling generated on the side wall of the aluminum DI can is significantly reduced. . Further, according to the present invention, since a high galling suppressing effect is exhibited regardless of the material properties of the aluminum plate, the cost of the aluminum DI can can be reduced by using the CC type aluminum plate, and a material search for unialloy, Goaling countermeasures will greatly contribute to the field that has been considered a problem.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (Reference) C10M 149/22 C10M 149/22 // C10N 40:24 (72) Inventor Yasunori Tomari Sakuragicho, Omiya City, Saitama Prefecture 1-7-7 Sonic City Building 28F (72) Inventor Akira Tajiri 1-2-1, Kinshi, Sumida-ku, Tokyo Inside Sky Aluminum Co., Ltd. (72) Inventor Shinichi Hasegawa 1-2-2 Kinshi, Sumida-ku, Tokyo No.1 Sky Aluminum Co., Ltd. F term (reference) 4H104 BB15R BB17C BC06C BC06R BE11C BE36R BF03C BH03C DA02A EA03C EA24C EB02 PA21 PA31 PA33

Claims (7)

[Claims] 1. A mineral oil-based lubricating base oil and / or a synthetic oil-based lubricating base oil comprising (A) an α-olefin having 10 to 40 carbon atoms, (B) having 12 or more carbon atoms, and Join 1
What is claimed is: 1. A lubricating oil composition for metalworking, comprising a mixture of at least one unsaturated fatty acid and (C) a phosphoric ester. 2. The method according to claim 1, further comprising: (D) an amide of a polyamine and a fatty acid and / or (E) a molecular weight of 50,000 to 30.
The lubricating oil composition for metalworking according to claim 1, characterized in that it contains 000 organic polymers. 3. Component (A): 5 to 50% by weight, component (B)
The lubricating oil composition for metalworking according to claim 1, wherein the lubricating oil composition is blended in a ratio of 3 to 30% by weight and component (C) 1 to 10% by weight. 4. The lubricating oil composition for metalworking according to claim 2, further comprising 1 to 10% by weight of component (D) and / or 0.5 to 3% by weight of component (E). object. 5. A surface of the aluminum plate is surface roughness (Ra) is 0.2 to 0.6 [mu] m, of 100 to 500 mg / m ² a lubricating oil composition according to claim 1, A surface-treated aluminum plate material coated in a range. 6. An aluminum sheet obtained by rolling in the presence of a rolling oil, wherein the amount of the rolling oil remaining on the surface is 50 mg / m ² or less.
The surface-treated aluminum plate material as described in the above. 7. The surface-treated aluminum sheet according to claim 5, wherein the aluminum sheet is obtained by a continuous casting and rolling method.