JPS62149795A - Lubricating agent for plastic working - Google Patents

Abstract

PURPOSE:To obtain a lubricating oil for plastic working capable of providing a lubricating effect without the need of a phosphate treatment comparable to the case where no phosphate treatment is conducted, by blending a particular lubricating component and basic substance with a surfactant and a particular amt. of water. CONSTITUTION:A lubricating oil comprising ortho-phosphoric acid (a), at least one lubricating component (b) selected from among mineral oils, fats and oils, synthetic lubricating oils, sulfur-base extreme-pressure agents or chlorine-base extreme pressure agents, at least one basic substance (c) selected from among hydroxides of alkali metals and carbonates of alkali metals, amines and imines a surfactant (d), and water (e), wherein the amt. of the component (e) is 0.05-10wt%. When the amt. of water is less than 0.05wt%, the formation of a reactive film of a lubricating agent on the surface of a working material is insufficient, which causes seizing during working. On the other hand, when the amt. of water exceeds 10wt%, the amt. of the dissolution of iron phosphate into the lubricating agent is increased, which brings about rapid deterioration of lubricating performance of the lubricating oil.

Description

[Detailed description of the invention]) Field of use in ψ industry The present invention is applicable to steel plastic +1 addition r Futagawa i1? Regarding I m punishment. Therefore, the present invention is utilized in the JY industry that manufactures 171 lubricant and the industry that processes steel materials.

BACKGROUND OF THE INVENTION Conventional plastic working of steel, such as forging, drawing, bending T, etc., is carried out by treating the workpiece material through the following steps.

('n Annealing - (washing resistance - ■ Neutralization - (4) Water washing - (1 month phosphoric acid treatment - (6) Water washing - ■ Lubricating IH + - (o)
Among the plastic forming steps described in r-4-4, the phosphorus M312 treatment involves soaking the material in an aqueous solution of zinc phosphate or manganese phosphate, and applying phosphoric acid 114 to the surface of the material. +1Q is formed, but to implement this,
Since there is no need for a treatment tank for dipping the material to be added, a large amount of equipment ((i+) costs can be reduced.

So, even without phosphorus Mlλ1 treatment, is it possible to have the same effect as applying this treatment?
lrl PlI agents are not known.

Also, if the material to be processed is brightly annealed, brightly annealed or ideally selected, 1. It should be possible to omit the pickling process in step 1 above, but in reality, even if it is called bright annealed material, it often has some scale or stains.
The reality is that pickling to remove this scale cannot be omitted.

Problem 1 to be Solved by the Invention Since the current situation is as described above, it is possible to provide a plastic processing [III Itl lubricant] that can obtain the riverside effect of phosphoric acid treatment without performing phosphoric acid treatment. This is the first aspect of the present invention.

The second object of the present invention is to provide a lubricant that can omit the phosphate treatment and the pickling when the second material is a bright annealed material. be.

Means for Solving the Problems The present invention provides one or more selected from (i) phosphoric acid, (b) mineral oil, oil, synthetic 11 tl lubricating oil, sulfur-based extreme pressure agent, or chlorine-based extreme pressure agent. 2 or more types of lubricating components, (c) one or two types selected from alkali metal hydroxides, alkali metal carbonates, Ami-7s, and imines.''-IIIJ, ( (d) a surfactant, and (e) water as essential components, and component (e) 771. is 0.0.
A lubricant for plastic working characterized in that the amount is in the range of 5 to 10% by weight.

The configuration of the present invention will be explained in detail below.

(II￥l Lubricating component) The lubricating component used in the present invention is one selected from the group consisting of mineral oil, fat, synthetic lubricating oil, sulfur-based extreme pressure agent, or 112 element-based extreme pressure agent. There is a species or two or more species.

Any mineral oil can be used, or it can be obtained by refining a lubricating oil fraction, which is usually obtained by distilling petroleum, and the kinetics measured using a Cannon Fenske viscometer. Viscosity is 1.0 to 1.000mm' at 40'0
/S is preferred.

As the oil and fat, beef tallow, liver fat, rapeseed oil, coconut oil, palm oil, bran oil, and hydrogenated oils thereof can be used.

Synthetic lubricating oils include (1) ricinoleic acid condensates, (2) mixtures of fatty acids obtained from the above oils and fats, (3)
Esters of individual fatty acids constituting the fatty acid mixture and monohydric or polyhydric alcohols, (4) polyolefins, (5) alkylene glycols, polyalkylene glycols and their alkyl ethers, and (6) phosphoric acid esters. can be exemplified.

The fatty acids constituting the esters of group (3) include lauric acid, myristic acid, valmitic acid, and stearic acid.
Examples include arachidic acid, behenine 1-oley/butyric acid, linoleic acid, and lylu/butyric acid.

The monohydric alcohols constituting the esters of group (3) have 1 to 22 carbon atoms, examples of which are methanol, ethanol, buta/ol, octatool, dodecanol, hexadecanol, octadecanol. Examples include decanol.

Examples of polyhydric alcohols constituting the esters of group (3) are:
These include ethylene glycol, propylene glycol, neopentyl glycol, trimethylolpropane, and pentaerydrift.

As examples of polyolefins of group (4), mention may be made of polybutenes and α-olefin oligomers having 5 to 10 carbon atoms.

Examples of the alkylene glycol of group (5) include ethylene glycol and propylene glycol, and examples of the polyalkylene glycol include polyethylene glycol and polypropylene glycol.

As the phosphoric acid ester of group (6), the following can be used.

(RO) POl (RO)2 F (0)O
H1RO・PO(OH)2.

RQ (C2H40)n PO(OH)2 (R in formula L means an alkyl group or alkylaryl group having 7 to 18 carbon atoms.) Examples of sulfur value-based extreme pressure agents include sulfurized fats and oils, dialkyl Examples include polysulfide, dialkyl polythiodiacetate, etc., and examples of the chlorine-based extreme pressure agent include chlorinated paraffin, chlorinated fat and oil, etc.

(Basic substance) The basic substance used to neutralize orthophosphoric acid in unproduced IJ is selected from alkali metal hydroxides, alkali metal carbon salts, amines, or imines. One or two materials can be used.

Potassium, sodium, etc. can be used as the alkali metal.

As the amines, alkyl amines and alcamel amines can be used.

Examples of alkylamines include monoethylamine, diethylamine, propylamine, laurylamine, oleylamine, tallowamine, and the like.

Examples of alkalamines include monoethanolamine, jetanolamine, triethanolamine, monoisopropanolamine, diisopropanolamine, triisopropanolamine, monosecantlybutanolamine, sisecantybutanolamine, It can include trisecantarybutanolamine and the like.

As the imine, acylinone, 2-methylaziridine, 2-ditylaziridine, 2-2' dimethylaziridine, pyrrolidino, piperidine, be/zimine, etc. can be used.

The amount of Ii1 basic physical substance is 10 to 50 times the amount required to neutralize phosphoric acid! I! It is desirable that the content be in the range of f'g%, and particularly when the lubricant for plastic working of the present invention is applied to a bright annealing agent, it is desirable that the content be 30% by weight or less.

■ffi li+- of n-based substance is l Q tunjI%%
If the amount is less, corrosion of the processed material and machine due to the n\J lubricant will occur.

If it exceeds 50-1%, the riverside effect will be insufficient.

In addition, when the material to be processed is a bright annealed material, m no, (
By controlling the total amount of the pollutants to 30 m f+i:% or less, the pickling step for removing scale can be omitted.

(Surfactant) In the present invention, the surfactant is a necessary component for stably dispersing water in the W2O type in the plastic working lubricant M1 composition. As the surfactant, a nonionic surfactant or a cationic surfactant can be used.

(Wednesday) The invention's 1171 lubricant for q-added E has a wood content of 0.0
It is between 5 and 10%. Water is 0.0
If the temperature is less than 5 tons I℃%, the reaction waves 11 of the lubricant on the surface of the front element material will not be formed within 1 minute, resulting in scorching (-1) during processing. If it exceeds 1.1%, a large amount of iron phosphate will be leached into the lubricant, and as a result, the l11 lubricating performance of the lubricant will quickly decrease.

When the workpiece material I is a bright annealed material, it is desirable that the content of water is 5 to 10% by weight. When the water content is less than 5%, the scale of the material to be processed is removed and the il?
The disadvantages caused by exceeding 10 ff (, 11i-%), in which the reaction film of the J lubricant cannot be sufficiently formed, are the same as in the case of the above-mentioned general liquid addition 1 material.

(Manufacturing method and usage method) The plastic working lubricant of the present invention can be easily manufactured by mixing the essential components and uniformly dissolving or dividing all the components.

When using the plastic working lubricant of the present invention.

Added [Material 1 to fi? 1. Apply the lubricant of the present invention to the lubricant by dipping it in a lubricant, or by brushing, spraying, or other methods.

EXAMPLES The present invention will be specifically explained with reference to Examples and Comparative Examples. However, the present invention is not limited in any way by these Examples and Comparative Examples.

In the following description, % stands for Φ;:, :%, and part stands for tun:, :.
It represents the division.

First: 4'r 1 Table shows the ・W properties of the present invention: III
A combination example of ny + smoothing is shown below.

Comparative Example 1 Sodium stearate 15 parts water
85 parts Comparative Example 2 Man/Oil (Note 1) 2.5 parts 1-1
1 point
5 74 Sodium stearin
6-part world rIIi activity + 11 agent-2 (Note 10)
1.5 parts water
85 parts Comparative Example 3 Rapeseed oil 30 parts 8-Nated Paraffin (Note 8) 20 parts Machine oil (Note 1)
40 parts oleic acid 10 parts (
Note 1) A pullout test was conducted using the lubricants listed in Table 1 (Jllo) // (Note 8)/l (Pull-out test) under the conditions listed in F using the lubricants of Examples and Comparative Examples. The pulling force was measured. In addition, the surface condition of the material after being pulled out was visually observed, and the surface roughness was determined as A111.

Test condition Test conditions, ■ Shima Ii + Manufactured by Seisakusho Autograph IS 5000 Drawing speed: 300mm/min.

Guisu:, TFL hard half angle = 7 degrees, hole P/: 3.8mm
It was heated to about 150° C. in order to approximate the actual working condition yL.

Material: Soft M wire (SWRM-8) Wire diameter: 5 mm Section reduction rate: 42%
Soaked for minutes.

The test results are shown in Table 2.

Table 2 In the surface condition column of Table 2, O means no burn-in, and × means burn-in.

Further, the reference examples in Table 2 were subjected to phosphate treatment using the method described below, coated with a lubricant, and then subjected to the test.

Treatment liquid: Bonderai made by 11 Wood Bar Power Rising ■) 1
500 ppm of an accelerator manufactured by the same company (trade name is Accelerator 131) was added to a 9% by weight aqueous solution of No. 81.

Soaking temperature and time near 5°C to 80°C for 5 minutes % of lubricant
Melt sodium lu-stearate by heating to 80°C,
The material was soaked for 10 minutes.

(Evaluation of bright annealed material using an actual machine) I: was performed before drawing the bright annealed material under the additional conditions listed in (1) below.

Add ■ two conditions.

Pipe type: STKMll (bright annealed material) *! 17・j
υ.

Before addition, outer diameter 42.5mm, wall thickness 2.5mm, minimal processing
Outside 1136.0mm Wall thickness 1.9mm cross section reduction - @:
35.4% Drawing method: draw hench drawing speed: 30 m/min * Processed at 680°C for 15 minutes.
The material to be processed was immersed for 10 minutes while maintaining the temperature at C, and then drawing was performed. The ratio of basic substances is 30!1rrjj1
In Example 2, in which the scale exceeded %, the scale removal performance was slightly worse than in Examples 6 and 7,
Both were able to be processed without causing seizure.

Effects of the Invention By using the lubricant for plastic working of the present invention, it is possible to obtain a 4U lubrication effect equivalent to that of phosphate treatment. Therefore, according to the present invention, equipment costs and management costs associated with phosphate treatment can be reduced.

In addition, when the lubricant for plastic working of the present invention is applied to plastic working of brightly annealed materials, washing resistance after brightly annealing can be omitted, so in addition to the effects described in 1-1, equipment costs associated with 11 are also reduced. and management costs can be reduced.

Claims (1)

[Claims] (a) Orthophosphoric acid; (b) One or more lubricating components selected from mineral oil, oil, synthetic lubricating oil, sulfur-based extreme pressure agent, or chlorine-based extreme pressure agent. , (c) one or more basic substances selected from alkali metal hydroxides, alkali metal carbonates, amines or imines, (d) a surfactant, and (e) water. A lubricant for plastic working, characterized in that the amount of component (e) is in the range of 0.05 to 10% by weight.