JP3340835B2 - Water-based lubricant composition for plastic working of metal material and method for producing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aqueous lubricant composition comprising lime soap for plastic working of iron-containing metallic materials and a method for producing the same.

[0002]

2. Description of the Related Art There has been a remarkable increase in the drawing speed in wire drawing, and a high-speed drawing of several hundreds of meters / minute has been performed. It is said that this is due not only to advances in wire drawing equipment but also to advances in lubrication technology.
It can be said that the role played by the lubricant is very large. Lime soap is regarded as a pre-treatment agent along with phosphate and borax in the lubricant treatment of wire drawing, and is used as a carrier for lubricant in the processing of steel with a relatively low carbon content. Is used together with a dry lubricant as a component (having an effect of carrying a lubricant by imparting the same and preventing contact between metals).
body metalworking J.S. A. S
hey, P385, ASM. (1983), "Lubricant Manual for Wire Drawing of Steel", edited by the Subcommittee for Lubricants, Subcommittee of the Japan Society for Technology of Plasticity, P18 (1982)). Lime soap is relatively inexpensive, is also useful as a temporary rust inhibitor, and is used as a neutralizing agent for pickling liquids used in pretreatment. Since the residual film after the drawing is easily removed and shows a certain degree of lubrication even when used alone, it is used without a dry lubricant in the case of light machining. Although its history dates back to the early Showa era, it is still widely used today due to its many strengths.

[0003] In spite of such a long history, unique lime soap is actually produced by a method based on many years of experience in improving wire drawing. ("Lubricant manual for steel drawing", p19). It is necessary to properly use the performance of the lubricant to be used depending on the purpose (Lubrication, Nobuhiro Yoshida, 30, 709 (1985)), but there is still little universal knowledge about lime soap. Seems like one of the factors. Even in the past literature and the like, a clear definition of lime soap is not even defined, and only the production method and usage method are described.

[0004] For example, the "Lubricant Manual for Steel Wire Drawing" edited by the Japan Society for Technology of Plasticity, Wire Drawing Technology Subcommittee, describes the manufacturing method. According to this, when excess lime (calcium oxide) is added to an alkali soap and stirred in water, slaked lime (calcium hydroxide) is generated by a digestion (hydration) reaction of quick lime according to the reaction formula (1). It is considered that slaked lime and soap undergo a metathesis reaction by the reaction formula (2) due to the heat generated at this time, and the reaction of the reaction formula (2) occurs reversibly.

[0005]

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[0006] The lime soap thus produced contains slaked lime, calcium soap and alkali formed, unreacted alkali soap which has not been converted into calcium soap, and water. Of these, slaked lime and calcium soap, which are the main components, are adsorbed to the work material in the lubricant composition and hold the lubricant (carrier effect).
Calcium soap also has the role of reducing the friction coefficient of lime soap (slip effect), and slaked lime gives the surface roughness to hold the lubricant and also has the role of preventing metal-to-metal contact during processing ing.

[0007] Lime soap varies depending on the purpose of use.
As a standard method, "lubricant manual for steel drawing" adds 5 to 10 parts by weight of an alkali soap of a fatty acid and about 400 parts of water to 100 parts by weight of quick lime. It describes a method of adding up to three times the amount of water and leaving it to stand. The raw materials used are alkaline soaps, quicklime and water of fatty acids. Alkali salts such as sodium and potassium are used for fatty acid alkaline soaps, and needle-like alkaline soaps of bovine fatty acid are generally used. Quicklime is JIS-R9 as described in the “Steel Wire Drawing Lubricant Manual”.
No. 001 is used.

As a general lubricant treatment method, the wire is pickled with hydrochloric acid, sulfuric acid or the like, chemically descaled, washed with water, and at a temperature of 50 to 60 ° C. and a concentration of 5 to 30% by weight. The lime soap is immersed in lime soap and dried to form a lime soap film. In these treatments, a coil-shaped wire rod of about 1 ton is hung on a C-type hanger and immersed in a batch system. After a lime soap film is formed and dried, wire drawing may be performed immediately, but in some cases, it may be left in a factory for about one week. The wire drawing is performed as it is or depending on the processing conditions, a dry lubricant such as a metallic soap powder or an oil-based lubricant is applied.

[0009] Lime soap is also used for wire drawing of bearing steel and the like. In this process, the steel wire is subjected to a phosphate treatment and then a lime soap treatment. In this case, the lime soap plays a role not as a carrier but as a component that gives slipperiness.

The lubricating performance of a lubricant for wire drawing in actual working is determined by the life of the die ("Lubricant for Steel Wire Drawing Manual", p62). Specifically, the diameter of the drawn wire rod is measured as needed, and the amount of processing until the wire diameter exceeds a predetermined dimension is evaluated.

The above-mentioned prior art has the following problems. When using lime soap, pickling solution must be avoided. ("Lubricant Manual for Iron and Steel Wire Drawing" p19) Immediately after the lime soap treatment, even if the finish is normal, rust is generated on the surface of the wire under the lime soap film after several days. This is caused by the effect of the pickling solution component because the water washing after the pickling is insufficient. In order to prevent this, sufficient washing may be performed. However, if the coiled wire is hung on a C-type hanger and treated in a batch method by an immersion method, rust may be generated immediately after the lime soap treatment. This phenomenon is observed at a bound portion (hereinafter referred to as a wire binding portion for convenience) when processing a coiled wire, particularly when the wire diameter is small.

This phenomenon is caused by an effect different from the generation of rust described in the "Manual for Lubricating Lubricants for Iron and Steel Wires", and cannot be solved by sufficiently washing with water after pickling. The measures are taken in an empirical way. For example, a method of increasing the concentration of lime soap or performing immersion treatment several times has been adopted. What can be said in any case is that when rust is generated on the surface of the wire, this becomes a starting point while the wire is left, and the rust surface further spreads. As a result, the lubrication performance of lime soap is significantly reduced. Lime soap often requires uniformity and gloss on the surface of the finished line, which is an important item when selecting lime soap.

[0013]

SUMMARY OF THE INVENTION It is an object of the present invention to improve the rust-preventing property of a wire bundle and the uniformity and gloss of a finished wire surface without impairing the lubricating performance of lime soap.

[0014]

Means for Solving the Problems As a result of intensive studies on the means for solving the above-mentioned problems, the present inventors have specified the constituent fatty acids in lime soap and specified the constituent ratio of the composition to improve the lubricating performance. The present invention was newly found to improve the rust-preventing property and the finished property of the wire binding part without impairing the uniformity and the glossiness of the surface, and completed the present invention.

That is, the present invention relates to an aqueous lubricant composition for plastic working of a metal material containing lime soap as an essential component, wherein the constituent fatty acids in the lime soap are saturated fatty acids having 16 or more carbon atoms with respect to the total amount of the constituent fatty acids. Is 60 to 90% by weight
And 10 to 40% by weight of unsaturated fatty acid having 18 carbon atoms, and the composition in lime soap solids excluding water is
Provided is an aqueous lubricant composition for plastic working of a metal material, which is 70 to 90% by weight of slaked lime, 7 to 20% by weight of calcium soap, and 2 to 10% by weight of alkaline soap.

The present invention also relates to a method of adding lime soap to water by adding an alkali soap containing 60 to 90% by weight of a saturated fatty acid having 16 or more carbon atoms and 10 to 40% by weight of an unsaturated fatty acid having 18 carbon atoms and quick lime. A method for producing a water-based lubricant composition for plastic working of a metal material, characterized by producing a lubricant composition by producing the composition.

Hereinafter, the configuration of the present invention will be described in detail. The metal material targeted by the present invention is iron, stainless steel, chrome steel,
Molybdenum steel and titanium steel.

The aqueous lubricant composition for plastic working of metallic materials of the present invention contains lime soap as an essential component. The lime soap which is an essential component of the composition of the present invention is a mixture of slaked lime, calcium soap, alkali, alkali soap and water, and is mainly composed of slaked lime and calcium soap.

It is important in the present invention that the constituent fatty acids in the lime soap are 60 to 90% by weight (hereinafter referred to as%) of saturated fatty acids having 16 or more carbon atoms and 18% of carbon atoms with respect to the total amount of the constituent fatty acids. That is, the saturated fatty acid is composed of 10 to 40%.

When the amount of the unsaturated fatty acid having 18 carbon atoms is less than 10% based on the total amount of the constituent fatty acids, it is impossible to obtain sufficient rust-proofing properties of the wire bundle, uniformity and gloss of the finished wire surface. Further, when the unsaturated fatty acid having 18 carbon atoms exceeds 40% of the total amount of the constituent fatty acids, the rust-preventing property of the wire bundle is improved, but the carrier effect is reduced, so that metal-to-metal contact occurs. It becomes easy and seizure occurs. If many scratches occur, the gloss decreases.

The unsaturated fatty acid having 18 carbon atoms is 10% to 40%.
%, The saturated fatty acid having 16 or more carbon atoms is adjusted to 60% to 90% to prevent the rust prevention of the wire rod binding portion, the uniformity and gloss of the finished wire surface without impairing the lubrication performance. The performance is improved. Among saturated fatty acids having 16 or more carbon atoms, it is more preferable that the content of fatty acids having more carbon atoms is high. Conversely, an increase in the content of the saturated fatty acid below 16 carbon atoms is not preferable from the viewpoint of lubrication performance.

The saturated fatty acids having 16 or more carbon atoms applied in the present invention include palmitic acid, stearic acid, arachiic acid, behenic acid, lignoceric acid, and cellotic acid. Examples of the unsaturated fatty acid having 18 carbon atoms include oleic acid, linoleic acid, and linolenic acid. Among them, oleic acid is widely used industrially,
Most accessible.

The composition of each component excluding water is 70-90% for slaked lime and 7-2% for calcium soap.
0% and alkali soaps are 2-10%. When the amount of slaked lime is less than 70%, the carrier effect decreases, and conversely 90%
If it exceeds, the sliding effect decreases due to the decrease in the soap content. If the calcium soap is less than 7%, the carrier effect is insufficient, and if it exceeds 20%, the slaked lime content is relatively reduced, so that the carrier effect is also reduced in this case.

Alkali soap is used to prevent rust at the wire ties,
It has the effect of improving the uniformity and glossiness of the finished wire surface, and is preferably 2 to 10%, and if it is 2% or less, rust occurs at the wire binding portion, and if it exceeds 10%, the carrier effect is reduced. And seizure is likely to occur.

Next, the method for producing lime soap of the present invention will be described. In the practice, the same production method as in the related art may be used, but the production is performed by adding 10 to 30% by weight of an alkali soap of a fatty acid to water based on the weight of quicklime. It is necessary that the reaction temperature at the time of production be equal to or higher than the dissolution temperature of the alkali soap of the fatty acid used. That is, alkali soap dissolves due to an increase in water temperature due to the digestion of quick lime, and the reaction of reaction formula (2) proceeds. However, the alkali soap of fatty acids having a higher carbon number tends to have a higher dissolution temperature in water. is there. In order to make the temperature at the time of reaction equal to or higher than the dissolving temperature of the alkaline soap of the fatty acid to be used, the ratio of quick lime and water must be considered, or the water temperature must be raised in advance by a heating device. When the temperature reaches the temperature at which the soap dissolves in water, the metathesis reaction proceeds and calcium soap is produced.

The lime soap of the present invention may optionally contain a rust preventive additive and a surfactant. By these additions, the rust-preventing property of the portion which has been processed normally without rust immediately after the lime soap treatment and the rust-preventing effect at the wire rod binding portion are further improved.

As the rust preventive additive, inorganic salts such as sodium tungstate, sodium molybdate, ammonium molybdate, sodium nitrite and borax, and amine salts such as triethanolamine and diethanolamine are effective. These additives are used in the lime soap solution used.
It is advisable to add it in the range of 1 to 2.0%, and particularly when rust prevention is required, the amount may be further increased.

Examples of the surfactant include non-ionic surfactants such as polyoxyethylene alkyl ethers, polyoxyethylene alkyl phenols, polyoxyethylene alkyl esters, polyoxyethylene solderabin alkyl esters, fatty acid salts, and sulfuric acid. Anionic surfactants such as esters are effective. It is good to add these in the range of 1.0 to 3.0% of the lime soap solution to be used, and if added more than this, it may cause foaming,
Due to the danger of moisture absorption, excessive addition is not preferred.

In the lime soap film treatment of the wire, after the wire is pickled or mechanically descaled, the lime soap obtained by the production method of the present invention is dispersed in water to a predetermined concentration, and immersion treatment is carried out. A soap film is formed. Before being subjected to the wire drawing, the wire is sufficiently dried. When used in combination with the phosphating treatment, the phosphating treatment is followed by a sufficient rinsing and then a lime soap treatment.

[0030]

The use of the lime soap of the present invention improves the rust prevention at the wire binding portion, and also improves the uniformity and gloss of the finished wire surface. Rust at the wire binding part becomes stronger at the wire binding part due to the weight of the wire,
This occurs because the pickling liquid is difficult to remove. It is considered that the lime soap presents a surfactant by containing an appropriate amount of unsaturated fatty acid, so that the lime soap solution is easily immersed in the wire bundle portion, and the pickling solution is neutralized.

On the other hand, a decrease in the uniformity and gloss of the finished wire surface can be interpreted as a phenomenon that occurs due to an excessive amount of the residual film after the wire drawing process (“lubricant manual for steel wire drawing”, p. 64). It is also considered that by containing an appropriate amount of unsaturated fatty acid, the lime soap film is given an appropriate peeling property and gloss is obtained.

Further, the content of the saturated fatty acid having 16 or more carbon atoms which contributes to the carrier properties of lime soap and the content of the unsaturated fatty acid having 18 carbon atoms which contributes to immersion of the lime soap solution into the wire rod binding portion are defined. By doing so, it has become possible to improve the rust-prevention property of the wire binding portion and the uniformity and glossiness of the finished wire surface without impairing the lubrication performance.

[0033]

Next, the present invention will be described in detail with reference to examples and comparative examples. Table 1 shows the fatty acid compositions of the soaps used in Examples and Comparative Examples, and the amount of quicklime added. The evaluation test method of the used lubricant composition and the method of measuring the composition in the solid content excluding water are as follows. In addition, the solid content was measured by measuring the weight of the residue when dried at 105 ° C. to a constant weight. The rust prevention property and die life of the wire binding part were evaluated using a coiled S-45C material. The uniformity, glossiness and carrier effect of the finished wire surface were evaluated using a hard steel wire.

[Rust-preventing property of the wire binding part] Diameter 2.8 mmφ
The annealed coiled S-45C wire was subjected to lime soap treatment. The weight per coil was about 1 ton, the diameter of the coil was about 0.5 m, and the total length of the coil was about 4 m. The lubricant treatment was carried out by pickling with 17.5% by weight of hydrochloric acid for 2 minutes, immersing in a bath filled with water for 2 minutes, and further washing with spray for 2 minutes. Then, it was immersed in a lime soap solution having a concentration of 10% by weight at 60 ° C. for 2 minutes, gently pulled up, and dried at 120 ° C. for 20 minutes. After drying, the coil was divided and the wire binding portion was observed, which was evaluated in the following four steps. ◎: No rusting 〇: Spot rust △: Many spot rusts ×: Many rust spots

[Die Life] The coil-shaped S-45C treated in the section of rust prevention of the wire binding part was drawn, and the die life was evaluated. The processing was performed only once using a 2.64 mmφ die, and evaluated by the processing amount (ton) until the wire diameter after drawing exceeded 2.65 mmφ. The larger the processing tonnage, the better the lubricity.

[Uniformity and glossiness of finished wire surface] In the same process as the rust prevention test of the wire binding part, 3 mmφ SWC
The material was lubricated. At this time, the concentration of the lime soap solution was adjusted so that the coating amount before drawing was about 4 g / m ² . The total length of the wires used was 15 m, and all were manually lubricated. Wire drawing speed is 2.4mφ and wire drawing speed is 50m
/ Min. The coating weight before drawing was measured by immersing the coating in a 5% by weight chromic acid aqueous solution at 80 ° C. for 20 minutes to dissolve the coating. The uniformity and glossiness of the finished line surface were evaluated by visual judgment in the following four stages. ：: Uniform and good gloss 〇: Slightly uniform and glossy △: Slight scratch ×: Non-uniform and poor gloss

[Carrier property] The amount of the film deposited after drawing was measured by the same method as before drawing, and the carrier property was evaluated. Further, the surface of the wire after drawing was observed, and the occurrence of seizure scratches was evaluated in the following three stages. 〇: no scratch △: slight scratch ×: many scratches

[Method for calculating composition of lime soap] To the produced lime soap, an equal amount of ethanol water (50% by volume) is added, and the mixture is stirred at 50 ° C for about 30 minutes. The alkaline soap is dissolved in ethanol and separated into a water-soluble component and a water-insoluble component using a filter paper. Components filtered at this time are alkali and alkali soap, and components not filtered are calcium soap and slaked lime. A fatty acid was obtained by adding an appropriate amount of hydrochloric acid to these isolates and acid-decomposing, and the fatty acid was dissolved in diethyl ether. The fatty acid contained in the ethanol water-soluble component and the ethanol water-insoluble component was quantified by weight measurement. . Subsequently, the calcium content in the ethanol-insoluble component and the sodium content in the soluble component were quantified by the atomic absorption method. In addition, calcium soap was calculated from the average molecular weight of the fatty acid composition in Table 1 and the amount of fatty acid in the ethanol-insoluble component, and the sodium soap was calculated from the amount of fatty acid in the ethanol-insoluble component.
The calcium content that forms calcium soap was subtracted from the calcium obtained by atomic absorption, and the slaked lime content was calculated. The alkali content was calculated in the same manner.

It should be noted, C ₁₂ represented by the following abbreviations constituent fatty lauric acid (saturated fatty acids) C _14: myristic acid (saturated fatty acid) C _16: palmitic acid (saturated fatty acids) C _18: Stearic acid (saturated fatty acid) _C16F1 : Palmitoleic acid (unsaturated fatty acid) _C18F1 : Oleic acid (unsaturated fatty acid) _C18F2 : Linoleic acid (unsaturated fatty acid)

Example 1 400 parts by weight of water at 15 ° C. were put into a reaction vessel, and 71% by weight of a saturated fatty acid having 16 or more carbon atoms shown in Table 1 was contained while strongly stirring with a stirrer. Sodium soap of a constituent fatty acid containing 26% by weight of unsaturated fatty acid
Parts by weight, and quicklime (JIS-R9001, special issue,
(The same applies hereinafter) 160 parts by weight were gradually added to produce a lubricant composition. With respect to the obtained lime soap, the composition was calculated by evaluating the rust-preventive property of the wire rod binding portion, the die life, the uniformity and gloss of the finished wire surface, the carrier properties, and the occurrence of seizure scratches.

Example 2 A sodium soap of the same constituent fatty acid as in Example 1
A lubricant composition was obtained in exactly the same manner as in Example 1, except that 150 parts by weight of quick lime and 150 parts by weight of quicklime were added, and the same evaluation test as in Example 1 was performed on the composition.

Example 3 The same fatty acid sodium soap as in Example 1 was added to 20
A lubricant composition was obtained in exactly the same manner as in Example 1 except that 170 parts by weight of quicklime was added, and the same evaluation test as in Example 1 was performed on the composition.

Example 4 As shown in Table 1, 30 parts by weight of a sodium soap of a constituent fatty acid having a lower content of unsaturated fatty acids having 18 carbon atoms and a higher content of saturated fatty acids having 18 carbon atoms than the sodium soap of Example 1 shown in Table 1, A lubricant composition was obtained in exactly the same manner as in Example 1 except that 160 parts by weight were charged, and the same evaluation test as in Example 1 was performed on this composition.

EXAMPLE 5 Sodium soap of a constituent fatty acid having a content of saturated fatty acids having 16 or more carbon atoms and containing 20% by weight of unsaturated saturated fatty acids having 18 carbon atoms, which is higher than that of the sodium soap of Example 1 shown in Table 1. Was added and 150 parts by weight of quicklime were added, and a lubricant composition was obtained in the same manner as in Example 1, and the same evaluation test as in Example 1 was performed on the composition.

Example 6 The sodium soap of the constituent fatty acid having a lower content of saturated fatty acids having 16 or more carbon atoms and a higher content of unsaturated saturated fatty acids having 18 carbon atoms than that of the sodium soap of Example 1 shown in Table 1 was used. A lubricant composition was obtained in exactly the same manner as in Example 1, except that 150 parts by weight of quick lime and 150 parts by weight of quicklime were added, and the same evaluation test as in Example 1 was performed on the composition.

Comparative Example 1 Lubrication was carried out in exactly the same manner as in Example 1, except that 30 parts by weight of sodium soap and 160 parts by weight of quicklime were added, as shown in Table 1 and containing a saturated fatty acid having 16 or more carbon atoms as a main component. An agent composition was obtained, and the same evaluation test as in Example 1 was performed on the composition.

Comparative Example 2 A lubricant composition was obtained in exactly the same manner as in Example 1, except that 30 parts by weight of sodium soap composed of coconut oil fatty acid and 160 parts by weight of quick lime shown in Table 1 were added. The composition was subjected to the same evaluation test as in Example 1.

Comparative Example 3 Except that 30 parts by weight of sodium soap and 160 parts by weight of quicklime shown in Table 1 were added,
A lubricant composition was obtained in exactly the same manner as in Example 1, and the same evaluation test as in Example 1 was performed on the composition.

Comparative Example 4 Sodium soap of the same constituent fatty acid as in Example 1 was added to 60
A lubricant composition was obtained in exactly the same manner as in Example 1 except that 130 parts by weight of quicklime was added, and the same evaluation test as in Example 1 was performed on the composition.

Comparative Example 5 A sodium soap of the same fatty acid composition as in Example 1 was added to 15
A lubricant composition was obtained in exactly the same manner as in Example 1, except that 175 parts by weight of quick lime was added, and the same evaluation test as in Example 1 was performed on the composition.

Table 2 shows the results of the evaluation. The following can be said from each evaluation result. (Rust-preventing property of the wire binding portion) The lubricant compositions of Examples 1, 2, 3, 5, and 6 did not rust at all, and Example 4 rusted at several places. On the other hand, in the lubricant composition of Comparative Example 1, many rusting points were confirmed. Comparative Examples 2 and 5 had less rust than this, and Comparative Examples 3 and 4 did not rust at all.

(Die Life) Each of the lubricant compositions of Examples 1 to 6 had a die life of 10 tons or more. The lubricant compositions of Comparative Examples 1 and 2 in which rusting was observed had a die life of 5 tons or less, and the die life was very short. The comparative examples 3 and 4, which did not rust at all, and the comparative example 5, which had relatively few rusting parts, also had a clearly shorter die life than Examples 1 to 6.

(Uniformity and Glossiness of Finished Line Surface) The lubricant compositions of Examples 1 to 6 all had good surface gloss. On the other hand, in Comparative Example 1, no gloss was observed, and the surface was matte. In Comparative Example 3, many seizure scratches occurred. Comparative Examples 2, 4, and 5 Occurrence was somewhat improved as compared with these, but was not equivalent to the Examples.

(Carrier Properties) All of the lubricant compositions of Examples 1 to 5 did not cause good seizure scratches, and had a coating amount of 0.7 g / m ² or more after drawing. Comparative Example 1
Had a particularly good carrier effect.

(Composition of Lime Soap) In Examples 1 to 6, the alkali soap having an effect of improving rust resistance at the wire binding portion, uniformity of the finished wire surface, and improving glossiness is preferably 2 to 10% by weight. In range. On the other hand, Comparative Examples 1, 2, and 5 had a small amount of alkali soap, rusted when subjected to coil treatment, and had a short die life. Comparative Example 3 has less calcium soap content and is inferior in carrier effect. In Comparative Example 4, the content of alkali soap was large, and the content of calcium soap was not in an appropriate range.

The above evaluation results are summarized as follows. The lubricant composition of the present invention has a uniform finish line surface,
The gloss imparts a suitable releasability and has a composition in which seizure hardly occurs. In Example 4, rusting occurred at several places at the wire binding portion, but it is considered that a die life of 10 tons or more was exhibited because sodium soap as a constituent fatty acid having a large number of saturated fatty acids having 18 carbon atoms was used. It is considered that the lubricant composition of Comparative Example 1 had too much residual film after wire drawing, and that Comparative Examples 2 to 5 did not have uniformity and glossiness of the finished wire surface because seizure occurred. Can be The lubricant composition of Comparative Example 1 showed a very good carrier effect in a test using a small amount of wire, but when it was processed in a coil shape, a large number of rusts occurred at the wire binding portion and the die life was extremely short. From this, it is clear that rust at the wire binding portion has a large effect on the die life.

[0057]

According to the present invention, the use of an aqueous lubricant composition for plastic working of a metal material containing lime soap as an essential component enables the rust prevention of the wire binding portion without impairing the lubrication performance.
It has become possible to improve the uniformity and gloss of the finished line surface.

[0058]

[Table 1]

[0059]

[Table 2]

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI C10N 10:02 C10N 10:04 10:04 40:24 Z 40:24 70:00 70:00 (72) Inventor Tsutomu Sawada Shiga 1780 Nagaoka, Yamato-cho, Sakata-gun, Japan Omi Mining Co., Ltd. (56) References JP-A-63-69889 (JP, A) JP-A-60-161493 (JP, A) JP-A-60-161492 (JP, A) JP-A-50-42266 (JP, A) JP-A-51-27663 (JP, A) JP-A-6-210341 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) C10M 173/02 C10M 103/06 C10M 105/24-105/26 C10M 125/10 C10M 129/38-129/44 C10M 177/00 C10N 10:02-10:04 C10N 40:24 C10N 70:00

Claims (2)

(57) [Claims] 1. An aqueous lubricant composition for plastic working of a metal material containing lime soap as an essential component, wherein the constituent fatty acids in the lime soap are 60 to 90 saturated fatty acids having 16 or more carbon atoms with respect to the total amount of the constituent fatty acids. % By weight and an unsaturated fatty acid having 18 carbon atoms is composed of 10 to 40% by weight, and the composition in the lime soap solid content excluding water is 70 to 90% by weight of slaked lime, 7 to 20% by weight of calcium soap, alkali soap An aqueous lubricant composition for plastic working of a metal material, which is 2 to 10% by weight. 2. A saturated fatty acid having at least 16 carbon atoms in water.
To 90% by weight and an unsaturated fatty acid having 18 carbon atoms
Alkaline soap containing 0% by weight and quick lime are added to produce lime soap, and the composition in the produced lime soap
Fatty acids have 16 or more carbon atoms based on the total amount of constituent fatty acids.
60-90% by weight of saturated fatty acid and unsaturated fat having 18 carbon atoms
Stone composed of 10-40% by weight of fatty acid and excluding water
The composition in the lime soap solid content is 70-90% by weight slaked lime,
7-20% by weight of calcium soap and alkali soap 2
Lime soap obtained as an essential component
A method for producing a water-based lubricant composition for plastic working of a metal material, characterized by producing a lubricant composition as described below.