JPH06299180A - Solid lubricant for plastic working and metallic plate having solid lubricating layer - Google Patents

Abstract

PURPOSE:To obtain a solid lubricant for plastic working having excellent performances in lubricity, degreasing properties, water resistance and further other required characteristics of a solid lubricant for plastic working, e.g. rust preventing, blocking properties and mold adhesion and a metallic plate having a solid lubricating layer composed of the solid lubricant for the plastic working. CONSTITUTION:The solid lubricant for plastic working is a water-soluble or a water-dispersible film-forming component having 5-25% nonionic type surfactant (A), 0.1-3.0% rust preventing agent (B) and the remainder composed of a terpolymer (F) of an alpha-olefin (C)-monoester of maleic acid (D)-monoester salt of maleic acid (E) which is a polymeric synthetic wax having >=6,000 molecular weight. Furthermore, the metallic plate is coated with this solid lubricant at 0.5-5g/m<2> coating amount based on one surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solid lubricant for plastic working of a metal thin plate and a metal thin plate coated with the solid lubricant. More specifically, the present invention improves the formability of the metal thin plate in press forming and press forming. It has excellent rust resistance afterwards, and its lubricating film has excellent water resistance to water droplets such as rainwater, and also has excellent stacking preservability and storability, and furthermore, chemical conversion treatment for automobile manufacturing, etc. The present invention relates to a solid lubricant having complete removability that can be easily and completely removed in a pretreatment process of a line and a metal plate having the solid lubricant layer.

[0002]

2. Description of the Related Art For thin plates, especially steel plates, a method of applying a lubricating oil containing a mineral oil as a base oil immediately before pressing has been generally adopted for press forming such as deep drawing. However, this oil coating process is a significant obstacle to improving the efficiency of press molding, and also the degreasing load in the post-treatment process, the deterioration of the working environment in the press process, and the assembly process. It is also one of the causes of troubles in welding work in Japan.

Further, recently, with the introduction of a high-speed continuous pressing machine, the temperature of a die for pressing such as a die and a punch is remarkably increased, and a press crack frequently occurs due to a seizure phenomenon. In addition, the manufacture of automobiles and home appliances
Due to competition for model changes, we are moving in a difficult direction toward smaller parts and difficult molding.

In order to cope with such a situation,
For example, Japanese Examined Patent Publication Nos. 44-2017, 44-16774,
In Japanese Patent Laid-Open No. 58-65793 and the like, a wax-like substance (including a semi-solid substance at room temperature) that is solidified at room temperature and has good lubricity and excellent rust-preventive property is applied to the surface of the steel plate in advance. However, this not only satisfies the highest lubrication conditions, but also saves the work of oiling immediately before pressing, and both the steel plate manufacturer side and the press contractor side improve the productivity and reduce the number of personnel. A method that can achieve is proposed.

However, in these technologies,
At present, the rust resistance, pressability, degreasing properties, etc. required are not sufficiently satisfied. In other words, the recent technological direction of energy saving and cost saving is rapid, and the conventional quality is not satisfied.For example, regarding degreasing property, due to the low temperature, low concentration and short time of the degreasing bath, Degreasing property of 3 times is required.

Regarding this point, JP-A-63-11269
In Japanese Patent Laid-Open No. 3 and Japanese Patent Laid-Open No. 1-207397,
Proposals have been made to significantly improve conventional solid lubricants. However, each of these proposals has the drawback that too much emphasis is placed on degreasing properties. That is,
The steel plate manufacturer and the press contractor are rarely the same, and it is common for steel plates manufactured by the steel plate manufacturer to always be transported to the press contractor by some transportation method. During the handling up to the press molding on the side of the press builder, the lubricating film easily falls off due to the adhesion of rainwater and other water droplets, and as a result, the press moldability in the subsequent press molding process is impaired, which eventually leads to product trouble. It could be the cause. For this reason, in such a product in which a solid lubricant is applied to the surface of the steel sheet in advance, it is required to have excellent water resistance for handling during the transportation process and press molding before its use, and After its use, it is necessary to have good degreasing property in order to sufficiently enhance the adhesion of the coating film in the coating process.

[0007]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned drawbacks of conventional solid lubricants, and has excellent lubricity, degreasing property, water resistance, and other properties. It is an object to provide a metal plate having an agent and its solid lubricating layer.

[0008]

The inventors of the present invention attach great importance to the water resistance, which is a drawback of the present invention, and disclose the higher alcohol esters of higher fatty acids and the glycerides of higher fatty acids disclosed in JP-A-58-65793. For solid waxes,
By making full use of the current organic synthetic chemistry and polymer chemistry technologies, we succeeded in synthesizing a new polymer synthetic wax having good water resistance and good degreasing property. The present invention has been completed by succeeding in water-solubilization without impairing the lubricity, degreasing property, rust preventive property, blocking property, weldability, etc., which are the properties required for the solid lubricant to be solved.

That is, the present invention has a nonionic surfactant (A) in an amount of 5 to 25% and a rust preventive agent (B) in an amount of 0.1 to 3.0%. General formula (1)

[0010]

[Chemical 2]

(In the formula, R ₁ has 18 to 44 carbon atoms.
Indicates an alkyl group, R ₂ represents a residue of a compound having a hydroxyl group, M represents a residue of a basic substance, also, m, n
And t is an integer) from a terpolymer (F) of α-olefin (C) -maleic acid monoester (D) -maleic acid monoester salt (E) of a polymer-based synthetic wax represented by Is a solid lubricant for plastic working, which is a water-soluble or water-dispersible film forming component. Further, the present invention is
Such a solid lubricant is a metal plate coated at a rate of 0.5 to 5 g / m ^{2 on} one side.

The terpolymer (F) of the α-olefin (C) -maleic acid monoester (D) -maleic acid monoester salt (E) of the polymeric synthetic wax used in the present invention is the above-mentioned general compound. Which is represented by formula (1),
Each structural unit forming the terpolymer (F) will be described in detail below.

First, the α-olefin (C) constituting the terpolymer (F) has 20 to 46 carbon atoms, preferably 30 to 46 carbon atoms. When the carbon number of the α-olefin (C) is 19 or less, the obtained terpolymer is unlikely to be a waxy substance, and has a resinous substance.

Next, maleic acid monoester (D) is
A linear or branched monovalent alkyl or alkylene alcohol having 4 to 12 carbon atoms, or
A compound obtained by adding an alkylene oxide having 2 to 4 carbon atoms in the range of 1 to less than 6 mol to a phenolic compound having 0 to 4 alkyl or alkylene groups having 1 to 4 carbon atoms, that is, polyoxyalkylene alkyl Alternatively, it is an alkylene ether, a polyoxyalkylene phenyl ether, or a polyoxyalkylene alkyl phenyl ether.

When the alcohol, which is the monoesterifying agent, is a compound having 1 to 3 carbon atoms, the terpolymer thus synthesized does not exhibit the desired waxiness. Further, alcohol having 13 or more carbon atoms, or 1 to 1 carbon atoms
Maleic acid from a polyoxyalkylene or alkylene ether obtained by adding 6 mol or more of an alkylene oxide having 1 to 4 carbon atoms to a phenol compound having 0 to 4 alkyl or alkylene groups of 4 or polyoxyalkylene alkylphenyl ether The terpolymer synthesized using the monoester has a melting point lower than the target melting point described later, that is, 60 ° C. or higher. Therefore, the blocking property of the lubricating film is deteriorated, so that the solid lubricating film is easily peeled off before molding or easily adhered to the mold in the molding process, which causes a trouble.

As a method for producing such a novel polymer synthetic wax, for example, an α-olefin-maleic anhydride copolymer [this product is available from Mitsubishi Kasei Co., Ltd. Marketed], a linear or branched monovalent alkyl or alkylene alcohol having 4 to 12 carbon atoms, or an alkyl or alkylene group having 1 to 4 carbon atoms ~ 2 phenolic compounds have 2 to 2 carbon atoms
The polyoxyalkylene alkyl or alkylene ether, polyoxyalkylene phenyl ether, or polyoxyalkylene alkyl phenyl ether obtained by adding the alkylene oxide of 4 in the range of 1 to less than 6 mol is prepared by a conventional method (for example, JACS , Vol.70, p39
The method described in 52), the wax-like substance synthesized by the reaction can be converted into an alkali metal salt, an alkaline earth metal salt, an ammonium salt or an organic amine salt.

Here, as the basic substance for forming the maleic acid monoester salt (E) of the terpolymer (F), specifically, for example, alkali metals such as lithium, sodium and potassium, and , Alkaline earth metals such as magnesium, calcium, barium, ammonia,
Having 1 to 3 alkyl groups having 1 to 4 carbon atoms, for example,
Mono-di-trialkylamines such as ethylamine, diethylamine, triethylamine, etc., further monoethanolamine, diethanolamine, triethanolamine,
Examples thereof include amino compounds such as adducts of ammonia and alkylene oxides having 2 to 4 carbon atoms, such as monopropanolamine, dipropanolamine and tripropanolamine, and at least one or more selected from them. Can be used.

The high molecular weight synthetic wax used in the present invention has a molecular weight of 6,000 or more, preferably 8,000.
The melting point is 0 to 12,000, and the melting point is 60 ° C. or higher, preferably 68 to 75 ° C.
When the molecular weight of the polymer-based synthetic wax is less than 6,000, the wax-like substance similar to the polymer-based synthetic wax used in the present invention has a melting point lower than 60 ° C. and is added to a nonionic type wax. The melting point is lowered with the surfactant (A), the melting point of the solid lubricating film formed on the metal plate is lowered to 50 ° C. or lower, and the solid lubricating layer is blocked. In addition, it is necessary to leave an acid component (carboxylic acid group: COOH) in the polymer-based synthetic wax, and the acid component exerts an action of enhancing degreasing property in a subsequent step.

Further, the surfactant (A) used in the present invention
Has a role of imparting water-soluble performance to the polymer-based synthetic wax that is the terpolymer (F), and specifically, alkyl or alkylene alcohol having 12 to 22 carbon atoms and 12 carbon atoms. -22 saturated or unsaturated fatty acid, hydroxy saturated or unsaturated fatty acid, castor oil, hydrogenated castor oil, or sorbit saturated or unsaturated fatty acid ester having 12 to 22 carbon atoms and an alkylene oxide having 2 to 4 carbon atoms. HLB which is a substance obtained by adding
(Hydrophile-Lipophile Balance) value 10-15 polyoxyalkylene alkyl ether, polyoxyalkylene saturated or unsaturated fatty acid ester, polyoxyalkylene hydroxy saturated or unsaturated fatty acid ester,
It is a nonionic surfactant which is polyoxyalkylene castor oil, polyoxyalkylene hydrogenated castor oil, or polyoxyalkylene sorbitan saturated or unsaturated fatty acid ester.

By the way, in water-solubilization of an oily substance, that is, in emulsification or dispersion, addition of an alkylene oxide having 2 to 4 carbon atoms to a phenol compound having an alkyl group having 8 to 12 carbon atoms called polyoxyethylene alkylphenyl ether. It is said that the one having an HLB value of 10 to 15 is optimal in the body, but the present inventors have found that the boundary friction coefficient of this substance at room temperature (25 to 28 ° C.) using the Soda oiliness tester is high. Focusing on the bad point, the non-ionic surfactant (A) of the present invention was reached in the process of investigating the cause.

That is, as the surfactant,
They are roughly classified into anionic activators, cationic activators, amphoteric activators and nonionic activators used in the present invention (see Sangyo Tosho Publishing "Surfactant Handbook", 2nd Edition, page 5). And, for example, solid soap called bath soap has 12 carbon atoms.
The main component is a saturated or unsaturated sodium salt of -18, which is a typical anionic activator, commonly referred to as an inverse soap, and also known as a sarkonium salt. Dodecyldimethylbenzyl ammonium chloride is a typical cationic activator. Furthermore, although amphoteric surfactants are generally not well known, there are betaine-type surfactants industrially used as fiber oils and dye aids.

However, in order to solve the problems of water resistance, lubricity, degreasing property and blocking property required for the solid lubricant of the present invention, anionic activators, cationic activators and amphoteric activators are excluded except nonionic activators. Neither is applicable. And in the present invention, in this nonionic activator, in particular,
The above-mentioned polyoxyalkylene alkyl ether having an HLB value of 10 to 15, polyoxyalkylene saturated or unsaturated fatty acid ester, polyoxyalkylene hydroxy saturated or unsaturated fatty acid ester, polyoxyalkylene castor oil, polyoxyalkylene hydrogenated castor oil, or One or a mixture of two or more selected from polyoxyalkylene sorbitan saturated or unsaturated fatty acid ester is preferably used.

Such a nonionic surfactant (A)
Is a water-soluble or water-dispersible polymer-forming wax of the terpolymer (F) represented by the general formula (1), which is a film-forming component, without impairing its lubricity. Specifically, for example, No. 1 in Table 1 below. There are 1-5. On the other hand, in the case of polyoxyalkylene alkyl phenyl ether (No. 6 of Table 1) which is generally said to have high emulsifying property, a Soda oiliness tester was used as shown in Table 1. The boundary friction coefficient at room temperature (25 to 28 ° C.) used in the present invention is No. It shows a worse value than the surfactants of 1 to 5, and its lubricating performance is inferior.

[0024]

[Table 1]

Then, this nonionic surfactant (A)
The amount used is usually 5 to 25%, preferably 10 to 18%
If it is less than 5%, the performance of making the terpolymer (F) of the general formula (1), which is a high molecular synthetic wax used in the present invention, water-soluble is poor, while if it exceeds 25%, The water resistance performance of the dry film of the solid lubricant of the present invention deteriorates.

Further, in the solid lubricant of the present invention, a rust preventive agent (B) having lubricity and emulsifying property is added. The polymeric synthetic wax, which is a component of the water-soluble film forming agent, does not dissolve in water by itself. For this reason, it is made water-soluble with the above-mentioned nonionic surfactant (A), further diluted with water at the time of use, and dried at room temperature to 60 ° C. after coating. For this reason, it naturally comes into contact with water, which causes a problem of corrosion of the thin metal plate. Therefore, in the present invention, when the high molecular synthetic wax of the terpolymer (F), which is the main component of the water-soluble film agent, is emulsified to be water-soluble, the emulsification property and lubricity are not reduced. Add a rusting agent to impart rust prevention.

As the rust preventive agent (B) used in the present invention,
Suitably, the following general formula (2) R—SO ₂ NH (CH ₂ ) _n COOMe (2) (wherein, R represents an alkyl or alkylene group having 10 to 18 carbon atoms, Me is an alkali metal, Or a mono-, di- or trialkyl or alkylolamine, and n is an integer of 1 to 3), and an alkyl or alkylene sulfonamide carboxylate type rust preventive having lubricity and emulsifying property is included. The amount used is usually 0.1 to 3.0% in the water-soluble film agent, preferably 0.5 to
It is 2.0%. If it is less than 0.1%, the rust preventive property is deteriorated. On the other hand, if it exceeds 3.0%, there is a problem that blocking of the dry film remains.

In order to form the solid lubricating layer by applying the solid lubricant of the present invention onto a metal plate, for example, in the range of 3 to 12.5% concentration in water depending on the desired dry film thickness. Dissolve
A solid lubricating layer having a desired film thickness is formed by applying the composition on a metal plate by a method such as a spray method or a roll coater method using a grooved roll, and then drying at room temperature to 60 ° C. after the application. The thickness of the dry solid lubricating layer at this time is 0.5 g / in order to secure the rust-preventing property and the press-molding effect.
m ² as the lower limit, and 5.0 g in order to prevent deterioration of performance such as weldability, blocking resistance, lubricity and degreasing property.
The upper limit is / m ² .

In the present invention, the term “metal plate” includes cold-rolled steel plate, plated steel plate such as zinc, and thin plate of non-ferrous metal such as aluminum, and the solid plate formed on the surface of the metal plate. The lubricating layer may be formed on both sides of the metal plate with a film thickness or with a film thickness different from each other, and further, a solid lubricating layer is formed only on one surface of the metal plate,
The other surface may be an untreated surface on which the solid lubricating layer is not formed.

[0030]

According to the solid lubricant for plastic working of the present invention, the solid lubricant layer (lubrication film) having high lubricity is formed by coating the solid lubricant on the metal plate. This high lubricity is α-
This is due to the long-chain alkyl group introduced into the molecule of the terpolymer of olefin-maleic acid monoester-maleic acid monoester salt. In addition, this lubricating film maintains a certain degree of hydrophilicity due to the presence of hydroxyl groups, even though it has high lubricity, that is, oiliness, and due to the great hydrophilicity of the remaining carboxyl groups or salts thereof, A lubricous film that can be washed with warm water or a dilute alkaline solution is formed. This means that it is possible to clean and remove the lubricating film with an aqueous cleaning liquid after the press molding process. In addition, high lubricity indicates that this lubricating oil has high oiliness, and furthermore, α-olefin-maleic acid monoester-maleic acid monoester that contributes to the lubricating performance of this lubricating film. Since the terpolymer of salt is a solid having a melting point of 60 ° C. or higher,
The blocking resistance of this lubricating film is also good. Due to the high oil-based water resistance, it is possible to store and transport the coated metal sheet without any trouble, and the lubricating coating does not fall off due to rainwater or the like.

[0031]

EXAMPLES The present invention will be specifically described below based on Examples and Comparative Examples. Table 2 shows solid lubricants according to the examples of the present invention, and Tables 3 and 4 show solid lubricants according to comparative examples.

The production of the terpolymer (F) is described below, taking composition No. 1 in Table 2 as an example. The following raw materials were subjected to a polymerization reaction in a nitrogen stream at 75 to 80 ° C. for 16 hours to obtain a milky white viscous material. α-Olefin 1.1 mol Maleic acid mono-n-butyl ester 0.7 mol Maleic acid mono-n-butyl ester sodium salt 0.3 mol Toluene 20 g Noniolite AL-8 (HLB value: 12.1, manufactured by Kyoeisha Chemical Co., Ltd.) Trade name) 11.025g Noniolite AL-12 (HLB value: 15.0, trade name manufactured by Kyoeisha Chemical Co., Ltd.) 13.475g Ion-exchanged water 650g Lauroyl peroxide 1.75g Next, the obtained viscous substance has ions. Add 500g of exchanged water,
Unreacted α-olefin and toluene were distilled off under reduced pressure as an azeotropic mixture with water, and then slaked lime and diethanolamine were added in appropriate amounts and the concentration was adjusted to obtain Composition No. 1. Composition Nos. 2 to 19 were also manufactured by the same method.

Regarding the terpolymer (F), the "monomer (molar ratio)" of the α-olefin (C), maleic acid monoester (D) and maleic acid monoester salt (E) used therein. , "Carbon content of α-olefin (C)",
"Monoesterification agent of maleic acid monoester (D)"
And "molecular weight (GPC)" and "residue of basic substance constituting salt" used in the synthesis of the terpolymer, and "lubricant concentration (% in composition) in this composition". ) ”And“ type of surfactant used, concentration (%) and HLB value ”.

After applying the solid lubricants of Examples shown in Table 2 and the solid lubricants of Comparative Examples shown in Tables 3 and 4 to JIS standard deep-drawing cold-rolled steel plate SPCE having a thickness of 0.8 mm Then, it was left at room temperature and dried to obtain a coated metal plate having a solid lubricating layer. Each of these coated metal plates was tested and measured for lubricity, rustproofing property, blocking property, mold adhesion property, water resistance and adhesion amount. Table 5 shows the results for the solid lubricants of the examples shown in Table 2, and Table 6 shows the results for the solid lubricants of the comparative examples shown in Tables 3 and 4.

Here, regarding lubricity, T shown below is used.
T value (Engelhardt value) by ZP drawing test method is 45
% Or more was evaluated as ◯, 35 to 45% as Δ, and 35% or less as x. This TZP drawing test
This is a drawability evaluation method developed by W. Engelhardt. First, as shown in FIG. 1 (a), a sample blank (test piece) 5 is fixed between a die 3 and a blank holder 4, and then As shown in FIG. 1 (b), the punch 1 is projected and deep drawing is performed. Immediately after the punch force in the middle of the punch is maximized, as shown in FIG. The flange portion of No. 5 is restrained, and further, FIG.
As shown in (d), the punch 1 is advanced to forcibly break the cup. The relationship between the punch force and the punch stroke in this process draws a curve as shown in FIG. 2, in which the breaking force P _ab at the cup bottom depends on the type of lubricant due to the structural strength of the cup wall. Although it does not change even if it is changed and shows a value peculiar to the material, it is known that the maximum drawing force P _z changes depending on the properties of the lubricant because it is the drawing force.

That is, the T value (Engelhardt value) = {(Pab-Pz) / Pab} × 100% changes depending on the lubricity. Here, the smaller the maximum drawing force P _z is, the larger the T value is, which indicates that the lubricant is suitable for deep drawing, which enables more complicated drawing work. The actual evaluation test is punch diameter 50.0 mmφ, punch shoulder radius 5.0 mm, die diameter 52.8 mmφ, die shoulder radius 5.0 mm, blank diameter 90.0 mm, initial wrinkle pressing load 5 kN, flange restraining force 50 kN, drawing. It was performed under the condition of a speed of 10 mm / min.

The degreasing property was evaluated by using Fine Cleaner FCL4460 manufactured by Nippon Parker Co., Ltd. under the conditions of a 3% solution, a liquid temperature of 45 ° C. and a dipping time of 120 seconds, followed by washing with water for 60 seconds. The water leakage rate after the evaluation was evaluated, and 80% or more was evaluated as ○, and 50 to 80% was evaluated as Δ, 50
Less than% was defined as x.

To evaluate the rust-preventive property, aqueous solutions having a solid content concentration of 1%, 5% and 10% of the solid lubricants of Examples and Comparative Examples were prepared, and test pieces were placed in these solid lubricant aqueous solutions. After immersion, the state of rusting for 14 days was observed with the naked eye, and the results were evaluated in three grades: ◯: No rusting, Δ: Partial rusting was observed, ×: Significant rusting.

The blocking property was evaluated by 100 mm × 1.
00 mm test pieces were overlapped with each other, a load of 12.5 kgf was applied, and in that state, after 2 hours at 50 ° C., the state of adhesion between the test pieces was visually observed. The results were evaluated in three grades: ◯: no adhesion, Δ: partial adhesion peeling occurred, ×: whole adhesion.

The mold adhesion is evaluated by the amount of the lubricant adhered to the drawing test tool for the evaluation of lubricity. When there is no adhesion, the degree is ○, when a little adhesion is Δ, and when the adhesion is large, x. evaluated.

The water resistance was evaluated by visually observing the falling state of the film when tap water pressurized to 3 kg / cm ² was sprayed for 30 seconds, and the water drop at this time caused the background of the metal plate to disappear. The exposed ones were evaluated as x, the ones where the film was partially removed were evaluated as Δ, and the ones that were hardly affected were evaluated as ○.

[0042]

[Table 2]

[0043]

[Table 3]

[0044]

[Table 4]

[0045]

[Table 5]

[0046]

[Table 6]

As is clear from the results shown in Table 5, the solid lubricant of the present invention has excellent properties in lubricity, degreasing property, rust preventive property, blocking property, mold adhesion property and water resistance. On the other hand, in the results of the comparative examples in Table 6, composition numbers 1 to 1
The solid lubricant of No. 3 is inferior in blocking property due to the low melting point of the lubricating component, and the solid lubricant of Composition No. 4 is inferior in lubricity, degreasing property and rust preventive property, and both are required at present. Performance is not satisfied. The solid lubricants of compositions Nos. 5 and 6 have good degreasing properties, but are too biased to have poor water resistance and rust resistance, and the solid lubricants of composition No. 7 are non-film-removing pieces. Therefore, the degreasing property is inferior, and further, the solid lubricants of composition numbers 8 to 16 are inferior in rust preventive property,
Among them, compositions Nos. 8 to 12 are inferior in lubricity and mold adhesion.

[0048]

According to the present invention, in addition to lubricity, degreasing property, and water resistance, other properties required for solid lubricants for plastic working, such as rust prevention, blocking property, mold adhesion property, etc. A solid lubricant for plastic working having excellent performance can be provided. Further, the metal plate having a solid lubricating layer formed using the solid lubricant for plastic working of the present invention,
Due to the high oil resistance, the solid lubricating layer (lubricating film) does not fall off due to rainwater or the like, and storage and transportation can be performed without any trouble.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional explanatory view showing a geometrical relationship between a tool and a material in a TZP test.

FIG. 2 is a graph showing the relationship between punch force and punch stroke obtained in the TZP test.

[Explanation of symbols]

1 ... Punch, 2 ... Wrinkle holder, 3 ... Die, 4 ... Blank holder, 5 ... Specimen blank, A ... Flange restraint point, Pz ... Maximum drawing force, Pab ... Cup bottom breaking force.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location C10M 129: 66 135: 10) C10N 10:02 10:04 20:04 30:00 8217-4H 30 : 04 30:12 40:24 Z 8217-4H 50:02 50:08 (72) Inventor Matsuo Usuda 20-1 Shintomi, Futtsu City, Chiba Prefecture, Nippon Steel Co., Ltd. Technical Development Division (72) Inventor Amaike Tatsuo 20-1 Shintomi, Futtsu City, Chiba Prefecture, Nippon Steel Co., Ltd. Technical Development Headquarters (72) Inventor Chihiro Masago 5-2, Nishikujo-cho, Nara City, Nara Prefecture, Kyoeisha Chemical Co., Ltd. Nara Research Institute (72 ) Inventor Hideki Tezuka 5-2-2, Nishikujo-cho, Nara City, Nara, Kyoeisha Chemical Co., Ltd. Nara Institute

Claims (8)

[Claims] 1. Nonionic surfactant (A) 5 to 25%
And a rust preventive agent (B) of 0.1 to 3.0%, and the balance of the following general formula (1) having a molecular weight of 6,000 or more: (However, in the formula, R ₁ represents an alkyl group having 18 to 44 carbon atoms, R ₂ represents a residue of a compound having a hydroxyl group, M 2
Represents a residue of a basic substance, and m, n, and t are integers), α-olefin (C) -maleic acid monoester (D) -maleic acid monoester of a polymer-based synthetic wax represented by A solid lubricant for plastic working, which is a water-soluble or water-dispersible film-forming component comprising a terpolymer (F) of an ester salt (E). 2. The nonionic surfactant (A) is HLB.
Polyoxyalkylene alkyl ether having a value of 10 to 15, polyoxyalkylene saturated or unsaturated fatty acid ester, polyoxyalkylene hydroxy saturated or unsaturated fatty acid ester, polyoxyalkylene castor oil, polyoxyalkylene hydrogenated castor oil, and poly The solid lubricant for plastic working according to claim 1, which is one or a mixture of two or more selected from oxyalkylene sorbitan saturated or unsaturated fatty acid esters. 3. The rust preventive agent (B) is represented by the following general formula (2) R—SO ₂ NH (CH ₂ ) _n COOMe (2) (wherein R is an alkyl or alkylene having 10 to 18 carbon atoms). Group, Me represents an alkali metal, mono-, di- or trialkyl or an alkylolamine, and n is an integer of 1 to 3), and an alkyl or alkylene sulfonamide carboxylic acid having lubricity and emulsifying property. The solid lubricant for plastic working according to claim 1, which is an acid salt type rust preventive agent. 4. The α-olefin (C) has 20 to 20 carbon atoms.
The solid lubricant for plastic working according to claim 1, which is 46 α-olefin. 5. The maleic acid monoester (D) is a branched or branched monovalent alkyl or alkylene alcohol having 4 to 12 carbon atoms or having 1 to 4 carbon atoms. A polyoxyalkylene alkyl or alkylene ether obtained by reacting a phenolic compound having 0 to 4 alkyl or alkylene groups with an alkylene oxide having 2 to 4 carbon atoms in a range of 1 to less than 6 mol,
The solid lubricant for plastic working according to claim 1, which is polyoxyalkylene phenyl ether or polyoxyalkylene alkyl phenyl ether. 6. The maleic acid monoester salt (E) is an alkyl metal salt, an alkaline earth metal salt, an ammonium salt,
And the solid lubricant for plastic working according to claim 1, which is one or a mixture of two or more selected from organic amine salts. 7. The ternary copolymer (F) of α-olefin-maleic acid monoester-maleic acid monoester salt, which is a polymer type synthetic wax, has an average molecular weight of 6,000.
The above is a solid having a melting point of 60 ° C. or higher, and the ratio of monomers forming the terpolymer (F) is α-olefin: maleic acid monoester: maleic acid monoester salt = 1: (0. 4 to 0.7): (0.3 to 0.5). The solid lubricant for plastic working according to claim 1. 8. A metal plate, wherein the solid lubricant according to claim 1 is applied at a rate of 0.5 to 5 g / m ^{2 on} one surface.