CN107164062A - A kind of metal working fluid and its preparation method and application - Google Patents

A kind of metal working fluid and its preparation method and application Download PDF

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Publication number
CN107164062A
CN107164062A CN201710541423.8A CN201710541423A CN107164062A CN 107164062 A CN107164062 A CN 107164062A CN 201710541423 A CN201710541423 A CN 201710541423A CN 107164062 A CN107164062 A CN 107164062A
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Prior art keywords
working fluid
metal working
acid
described stirring
compound
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CN107164062B (en
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梅晖
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Quaker Chemical Corp
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Quaker Chemical Corp
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/04—Mixtures of base-materials and additives
    • C10M169/048—Mixtures of base-materials and additives the additives being a mixture of compounds of unknown or incompletely defined constitution, non-macromolecular and macromolecular compounds
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
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    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
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Abstract

The present invention provides a kind of metal working fluid, and the component of the metal working fluid includes base oil, synthetic ester, organic acid, organic amine, special lubricant, auxiliary agent and water.The working fluid just has excellent greasy property at low concentrations; newborn machined surface and tool surface can preferably be protected; prevent the generation and abrasion of built-up edge; the working fluid also has excellent anti-microbial property and biological stability high at low concentrations simultaneously; the common extreme-pressure lubricants such as chlorine, phosphorus, sulphur are not used to improve lubrication, it is small to environment and operating personnel's harm.

Description

A kind of metal working fluid and its preparation method and application
Technical field
The invention belongs to metal processing sectors, it is related to a kind of metal working fluid and its preparation method and application.
Background technology
By reform and opening-up for many years, the auto industry of China is rapidly developed, and forms more complete production cloth Office.Wherein as the engine of vehicle key part, it is researched and developed and production technology also reaches its maturity, and possesses suitable scale. Engine is the heart of automobile, and precise structure is complicated, high to requirement on machining accuracy.By agent structure be broadly divided into cylinder body, The parts such as cylinder cap, bent axle, connecting rod, piston, camshaft.Wherein cylinder body and cylinder cap are the body structure of stephanoporate thin wall, wherein adding The larger processing for having the cylinder cap Valve seat circle conical surface and guide hole of work difficulty, tappet hole machined, camshaft hole processing etc., And processing precision direct influence is to the assembly precision and service behaviour of engine.Cutting fluid has very big to the crudy of workpiece Influence.In recent years, with the introduction of external sophisticated equipment, while greatly improving production efficiency and machining accuracy, to cutting Liquid it is also proposed higher requirement.In engine component process, cutting fluid boundary lubrication performance is to improve cutter mill Damage the important indicator with control surface quality.The excellent boundary lubrication of cutting fluid, and its potent chemical attachment power can be Pressure-bearing oil film is produced between workpiece and cutter, abrasive wear is reduced, cutting heat is absorbed, and cause chip to depart from knife before cutter rapidly Face, it is to avoid cutting edge produces built-up edge and bonding abrasion.
In order to reach the requirement of machining accuracy, start to machine the height that the cutting fluid used all maintains 8-10% substantially at present Concentration even more high concentration is come the greasy property needed for ensureing.But high concentration means more cutting fluid consumption, not only improves The synthesis use cost of cutting fluid, and liquid waste processing amount and difficulty in the future also increase.Some engine processing sites Attempt to reduce the concentration of cutting fluid, or but result is that the machining accuracies of parts does not reach requirement, otherwise cutter makes Declined with the life-span, or even breaking.Raw bacterium problem is also easily happened suddenly, it is necessary to add a large amount of extra because concentration declines cutting fluid simultaneously Bactericide is safeguarded, adds maintenance cost.
The content of the invention
To solve technical problem present in prior art, the present invention provides a kind of metal working fluid, and the working fluid exists Just there is excellent greasy property under low concentration, can preferably protect newborn machined surface and tool surface, prevent built-up edge Produce and wear and tear, while the working fluid also has excellent anti-microbial property and biological stability high at low concentrations, do not make Lubrication is improved with the common extreme-pressure lubricant such as chlorine, phosphorus, sulphur, it is small to environment and operating personnel's harm.
To reach the effect above, the present invention uses following technical scheme：
One of the object of the invention is to provide a kind of metal working fluid, the component of the metal working fluid include base oil, Synthetic ester, organic acid, organic amine, special lubricant, auxiliary agent and water.
As currently preferred technical scheme, include according to the component of metal working fluid described in mass percent meter：
Wherein, the mass percent of base oil can be 35%, 36%, 37%, 38%, 39%, 40%, 41%, 42%, 43%th, 44% or 45% etc., the mass percent of synthetic ester can be 8%, 9%, 10%, 11%, 12%, 13%, 14% or 15% etc., the mass percent of organic acid can be 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5%, 9%, 9.5% or 10% etc., the mass percent of organic amine can be 8%, 9%, 10%, 11%, 12%, 13%, 14% or 15% Deng, special lubricant mass percent can be 3%, 3.2%, 3.5%, 3.8%, 4%, 4.2%, 4.5%, 4.8% or 5% etc., the mass percent of auxiliary agent can be 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%, 8%, 8.5% Or 9% etc., it is not limited to other unrequited numerical value are equally applicable in cited numerical value, above-mentioned each number range.
As currently preferred technical scheme, the base oil is isomery hexadecane hydrocarbon.
Preferably, the synthetic ester is benzoic acid -2- ethylhexyls and/or trimethylolpropane tris decylate.
As currently preferred technical scheme, it is stearic that the organic acid includes dimerization castor oil acid, appropriate youngster's oleic acid, isomery Any one in acid, dodecanedioic acid, gluconic acid or neodecanoic acid or at least two combination, the combination are typical but non-limiting Example has：The combining of dimerization castor oil acid or appropriate youngster's oleic acid, appropriate youngster's oleic acid and the stearic combination of isomery, isomery stearic acid and the moon It is combination, the combination of dodecanedioic acid and gluconic acid, gluconic acid and the combination of neodecanoic acid of osmanthus diacid or dimerization castor oil acid, appropriate Youngster's oleic acid and the stearic combination of isomery etc..
Preferably, the organic amine includes diisopropanolamine (DIPA), 2- amino-2-methyls propyl alcohol, 3- butoxy propyl amines, N, N- bis- Any one in MEA or hexa or at least two combination, the combination typical case but non-limiting examples Have：The combination of diisopropanolamine (DIPA) and 2- amino-2-methyl propyl alcohol, the combination of 2- amino-2-methyls propyl alcohol and 3- butoxy propyl amines, The combination of 3- butoxy propyl amines and N, N- diethylaniline, N, the combination of N- diethylanilines and hexa, six methylenes The combination of urotropine and diisopropanolamine (DIPA) or the combination of diisopropanolamine (DIPA), 2- amino-2-methyls propyl alcohol and 3- butoxy propyl amines etc..
Preferably, the special lubricant is Benzotriazole Derivative.
As currently preferred technical scheme, the auxiliary agent includes emulsifying agent, coupling agent, bactericide and defoamer.
As currently preferred technical scheme, the emulsifying agent includes alcohol ether carboxylate, aliphatic alcohol polyethenoxy polyoxy third Any one in alkene ether or polyisobutene maleic anhydride or at least two combination, the combination typical case but non-limiting examples Have：Combination, Fatty alcohol polyoxyethylene polyoxypropylene ether and the poly- isobutyl of alcohol ether carboxylate and Fatty alcohol polyoxyethylene polyoxypropylene ether The combination of alkene maleic anhydride, the combination of polyisobutene maleic anhydride and alcohol ether carboxylate or alcohol ether carboxylate, aliphatic alcohol polyethenoxy are poly- Combination of oxypropylene ether and polyisobutene maleic anhydride etc..
Preferably, the mass percent of the emulsifying agent be 1~2%, such as 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%th, 1.6%, 1.7%, 1.8%, 1.9% or 2% etc., it is not limited to cited numerical value, in the number range its His unrequited numerical value is equally applicable.
Preferably, the coupling agent is triethylene glycol fourth machine ether.
Preferably, the mass percent of the coupling agent is 2~5%, such as 2%, 2.5%, 3%, 3.5%, 4%, 4.5% Or 5% etc., it is not limited to other unrequited numerical value are equally applicable in cited numerical value, the number range.
As currently preferred technical scheme, the bactericide is 2- butyl-BIT and 2- The mixture of the propane diol of bromo -2- nitros -1,3.
Preferably, the mass percent of the bactericide be 1~2%, such as 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%th, 1.6%, 1.7%, 1.8%, 1.9% or 2% etc., it is not limited to cited numerical value, in the number range its His unrequited numerical value is equally applicable.
Preferably, the defoamer is dimethicone.
Preferably, the mass percent of the defoamer be 0.05~0.1%, such as 0.05%, 0.06%, 0.07%, 0.08%th, 0.09% or 0.1% etc., it is not limited to other unrequited numerical value in cited numerical value, the number range It is equally applicable.
The present invention selects the isoparaffin and special synthetic ester of low viscosity, relative to conventional mineral oil and synthesis Ester, can enter the machined surface of fresh generation with the help of surfactant faster, while having splendid oil film again Intensity.Select BTA analog derivative simultaneously, BTA analog derivative can strong adsorption in metal surface, up to During to defined usage amount, the isoparaffin and synthetic ester selected before collocation, three's synergy are greatly improved metal The greasy property of working fluid, can preferably protect newborn machined surface and tool surface, prevent the generation and abrasion of built-up edge.For Under solution low consistency conditions easily raw bacterium the problem of, the present invention is arranged in pairs or groups from two kinds of efficient and persistence good bactericide The organic amine of special construction with bacteriostasis so that even if product of the present invention can still keep good life at low concentrations Thing stability.
The two of the object of the invention are to provide a kind of preparation method of above-mentioned metal working fluid, and methods described includes following step Suddenly：
(1) base oil, synthetic ester, organic acid, organic amine and emulsifying agent are mixed under agitation, obtains the first mixing Material；
(2) the first compound for obtaining step (1) and water, special lubricant, coupling agent and bactericide be under agitation Mixing, obtains the second compound；
(3) the second compound for obtaining step (2) is mixed under agitation with defoamer, obtains metal working fluid.
As currently preferred technical scheme, the mixing speed of step (1) described stirring is 400~800rpm, such as 400rpm, 450rpm, 500rpm, 550rpm, 600rpm, 650rpm, 700rpm, 750rpm or 800rpm etc., but simultaneously not only limit It is equally applicable in other unrequited numerical value in cited numerical value, the number range.
Preferably, the time of step (1) described stirring be 20~40min, such as 20min, 22min, 25min, 28min, 30min, 32min, 35min, 38min or 40min etc., it is not limited to cited numerical value, in the number range, other are not The numerical value enumerated is equally applicable.
Preferably, the temperature of step (1) described stirring be 25~40 DEG C, such as 25 DEG C, 26 DEG C, 28 DEG C, 30 DEG C, 32 DEG C, 35 DEG C, 38 DEG C or 40 DEG C etc., it is not limited to other unrequited numerical value are equally fitted in cited numerical value, the number range With.
Preferably, the mixing speed of step (2) described stirring be 400~800rpm, such as 400rpm, 450rpm, 500rpm, 550rpm, 600rpm, 650rpm, 700rpm, 750rpm or 800rpm etc., it is not limited to cited numerical value, the numerical value In the range of other unrequited numerical value it is equally applicable.
Preferably, the time of step (2) described stirring be 20~40min, such as 20min, 22min, 25min, 28min, 30min, 32min, 35min, 38min or 40min etc., it is not limited to cited numerical value, in the number range, other are not The numerical value enumerated is equally applicable.
Preferably, the temperature of step (2) described stirring be 25~40 DEG C, such as 25 DEG C, 26 DEG C, 28 DEG C, 30 DEG C, 32 DEG C, 35 DEG C, 38 DEG C or 40 DEG C etc., it is not limited to other unrequited numerical value are equally fitted in cited numerical value, the number range With.
Preferably, the mixing speed of step (3) described stirring be 400~800rpm, such as 400rpm, 450rpm, 500rpm, 550rpm, 600rpm, 650rpm, 700rpm, 750rpm or 800rpm etc., it is not limited to cited numerical value, the numerical value In the range of other unrequited numerical value it is equally applicable.
Preferably, the time of step (3) described stirring be 20~40min, such as 20min, 22min, 25min, 28min, 30min, 32min, 35min, 38min or 40min etc., it is not limited to cited numerical value, in the number range, other are not The numerical value enumerated is equally applicable.
Preferably, the temperature of step (3) described stirring be 25~40 DEG C, such as 25 DEG C, 26 DEG C, 28 DEG C, 30 DEG C, 32 DEG C, 35 DEG C, 38 DEG C or 40 DEG C etc., it is not limited to other unrequited numerical value are equally fitted in cited numerical value, the number range With.
The three of the object of the invention are to provide a kind of purposes of above-mentioned metal working fluid, and the metal working fluid is used to process Automotive engine component.
Compared with prior art, the present invention at least has the advantages that：
(1) present invention provides a kind of metal working fluid, and the metal working fluid just has excellent under 4~5% concentration Greasy property, and start to machine conventional cutting fluid concentration requirement in the prior art in 8-10%, sometimes even more high；
(2) present invention provides a kind of metal working fluid, and the metal working fluid has excellent antibiotic property at low concentrations Energy and biological stability；
(3) present invention provides a kind of metal working fluid, and the common extreme pressures such as chlorine, phosphorus, sulphur are not used in the metal working fluid Lubricant improves lubrication, small to environment and operating personnel's harm；
(4) present invention provides a kind of preparation method of metal working fluid, and the preparation method technique is simple, it is adaptable to industry Metaplasia is produced.
Embodiment
For ease of understanding the present invention, it is as follows that the present invention enumerates embodiment.Those skilled in the art are it will be clearly understood that the implementation Example is only to aid in understanding the present invention, is not construed as the concrete restriction to the present invention.
Embodiment 1
A kind of preparation method of metal working fluid, the described method comprises the following steps：
(1) by 35g isomery hexadecanes hydrocarbon, 15g benzoic acid -2- ethylhexyls, 5g organic acids, 8g organic amines and 2g alcohol ethers Carboxylic acid mixes 30min at 30 DEG C under 600rpm stirrings, obtains the first compound；
(2) the first compound for obtaining step (1) and 26.95g water, 3g Benzotriazole Derivatives, 3g triethylene glycols Fourth machine ether and 2g bactericide mix 30min under 600rpm stirrings, obtain the second compound；
(3) the second compound for obtaining step (2) mixes 30min with 0.05g dimethicones under 600rpm stirrings, Obtain metal working fluid.
Wherein, the organic acid is castor oil acid, appropriate youngster's oleic acid and the stearic mixture of isomery, and the organic amine is two The mixture of isopropanolamine, 2- amino-2-methyls propyl alcohol and 3- butoxy propyl amines.
Embodiment 2
A kind of preparation method of metal working fluid, the described method comprises the following steps：
(1) by 45g isomery hexadecanes hydrocarbon, 8g trimethylolpropane tris decylate, 10g organic acids, 15g organic amines and 1g Fatty alcohol polyoxyethylene polyoxypropylene ether mixes 30min at 30 DEG C under 600rpm stirrings, obtains the first compound；
(2) the first compound for obtaining step (1) and 10.95g water, 3g Benzotriazole Derivatives, 5g triethylene glycols Fourth machine ether and 2g bactericide mix 30min under 600rpm stirrings, obtain the second compound；
(3) the second compound for obtaining step (2) mixes 30min with 0.05g dimethicones under 600rpm stirrings, Obtain metal working fluid.
Wherein, the organic acid is the mixture of appropriate youngster's oleic acid, isomery stearic acid and dodecanedioic acid, and the organic amine is 2- The composition of amino-2-methyl propyl alcohol, 3- butoxy propyl amines and N, N- diethylaniline.
Embodiment 3
A kind of preparation method of metal working fluid, the described method comprises the following steps：
(1) by 40g isomery hexadecanes hydrocarbon, 10g benzoic acid -2- ethylhexyls, 8g organic acids, 12g organic amines and 1.5g Polyisobutene maleic anhydride mixes 30min at 30 DEG C under 600rpm stirrings, obtains the first compound；
(2) the first compound for obtaining step (1) and 18.95g water, 4g Benzotriazole Derivatives, 4g triethylene glycols Fourth machine ether and 2g bactericide mix 30min under 600rpm stirrings, obtain the second compound；
(3) the second compound for obtaining step (2) mixes 30min with 0.05g dimethicones under 600rpm stirrings, Obtain metal working fluid.
Wherein, the organic acid is the mixture of dodecanedioic acid, gluconic acid and neodecanoic acid, and the organic amine is 3- fourth oxygen The mixture of base propylamine, N, N- diethylanilines and hexa.
Embodiment 4
A kind of preparation method of metal working fluid, the described method comprises the following steps：
(1) by 38g isomery hexadecanes hydrocarbon, 12g trimethylolpropane tris decylate, 10g organic acids, 10g organic amines and 2g polyisobutene maleic anhydride mixes 40min at 45 DEG C under 400rpm stirrings, obtains the first compound；
(2) the first compound for obtaining step (1) and 19.94g water, 4g Benzotriazole Derivatives, 3g triethylene glycols Fourth machine ether and 1g bactericide mix 40min under 400rpm stirrings, obtain the second compound；
(3) the second compound for obtaining step (2) mixes 40min with 0.06g dimethicones under 400rpm stirrings, Obtain metal working fluid.
Wherein, the organic acid is the mixture of dimerization castor oil acid, dodecanedioic acid and neodecanoic acid, and the organic amine is two The mixture of isopropanolamine, 3- butoxy propyl amines and N, N- diethylaniline.
Embodiment 5
A kind of preparation method of metal working fluid, the described method comprises the following steps：
(1) by 42g isomery hexadecanes hydrocarbon, 13g trimethylolpropane tris decylate, 8g organic acids, 7g organic amines and The mixture of 1.5g polyisobutene maleic anhydride and alcohol ether carboxylate, mixes 20min under 800rpm stirrings at 20 DEG C, obtains the One compound；
(2) the first compound for obtaining step (1) and 19.92g water, 3.5g Benzotriazole Derivatives, the second of 3.5g tri- Glycol fourth machine ether and 1.5g bactericide mix 20min under 800rpm stirrings, obtain the second compound；
(3) the second compound for obtaining step (2) mixes 20min with 0.08g dimethicones under 800rpm stirrings, Obtain metal working fluid.
Wherein, the organic acid is the mixture of appropriate youngster's oleic acid, isomery stearic acid and gluconic acid, and the organic amine is two Isopropanolamine, 3- butoxy propyl amines, N, the combination of N- diethylanilines and hexa.
Comparative example 1
Except step (1) is using mineral oil replacement isomery 16 in a kind of preparation method of metal working fluid, methods described Outside alkane, other conditions are same as Example 1.
Comparative example 2
Except step (1) is substituted using decanedioic acid isooctanol ester in a kind of preparation method of metal working fluid, methods described Outside benzoic acid -2- ethylhexyls, other conditions are same as Example 1.
Comparative example 3
Derive in a kind of preparation method of metal working fluid, methods described except being added without BTA in step (2) Beyond the region of objective existence, other conditions are same as Example 1.
Comparative example 4
Except the use of Benzotriazole Derivative in step (2) in a kind of preparation method of metal working fluid, methods described Measure as 1g, water is that other conditions are same as Example 1 outside 28.95g.
Comparative example 5
Except the use of Benzotriazole Derivative in step (2) in a kind of preparation method of metal working fluid, methods described Measure as 10g, water is that other conditions are same as Example 1 outside 19.95g.
Comparative example 6
Except the bactericide that step (2) is added is ethoxy six in a kind of preparation method of metal working fluid, methods described Outside hydrogen s-triazine, other conditions are same as Example 1.
Comparative example 7
Except the organic amine that step (1) is used is to methylbenzene in a kind of preparation method of metal working fluid, methods described Amine and the mixing beyond the region of objective existence to MEA, other conditions are same as Example 1.
In embodiment 1-5 and comparative example 1-7 using antiseptic be 2- butyl -1,2- benzisothiazole-3-ketones and The mixture of the propane diol of 2- bromo -2- nitros -1,3.
Greasy property is tested：
Using the tapping torque test system (TTT System G8) of German Microtap companies, to embodiment 1-5, right Ratio 1-5 and traditional product carry out tapping torque test, are tested with simulation test machine in the metal material for being provided with preformed hole Tapping experiments are directly carried out on block, and evaluate with tapping torque value or tapping efficiency the processing characteristics of cutting fluid, in theory, Tapping torque value is smaller, tapping efficiency is higher, represents that the lubricity of cutting fluid is better.Compared with traditional four balls frictional testing machine, Tapping torque test machine, which is taken, directly to carry out the mode of tapping processing to judge cutting fluid, it is clear that than four ball frictional testing machines more more Operating mode is cut close to test-run a machine.According to different materials, the different rotating speed of adjustment and extruding silk can be respectively adopted in tapping experiments machine Cone and cut tap adjust processing severe, so if can careful effective screening test condition, cut with its evaluation Cutting the reliability of the processing characteristics of liquid can greatly improve.
Wherein, the tapping efficiency %=of test product is (with reference to the tapping torque of tapping torque value/test product of product Value) * 100%.
Test parameters：This experiment uses thread forming tap, and the speed of mainshaft is 1200rpm, and test panels material is 6082Al, cutting fluid concentration is 5%, and cutting fluid traditional product concentration is 5%.As a result it is as shown in table 1.
Table 1
Remarks：Tapping efficiency value is using traditional product as reference in above table
Anti-microbial property test：
Metal-working fluids bioresistance and antimicrobial Properties of Bactericides can be mixed with reference to ASTM E 2275-2003 water The standard code of practice of evaluation.The experiment is that under the conditions of microbiological test, the test period is 8 weeks, weekly periodically will be quantitative Strain is added in metal working fluid, and then periodic detection bacterial population confirms the anti-microbial property of the metal working fluid again, if continuously Two weeks bacterial populations>105, then it is determined as failure.It is different according to the microorganism that live working fluid grows, often separately make bacterium class and true The antibacterial tests of mushroom.Anti-microbial property test is carried out according to above-mentioned steps to embodiment 1, comparative example 6 and 7 and traditional product. As a result as shown in table 2 and table 3.Each sample concentration is 3% in test, and initial pH is 9.5.
Table 2
Table 3
It can be seen from Table 1 that, embodiment 1-5 tapping torque value is less than 70, and minimum reachable 64.5, and tapping efficiency More than 170%, 182% is reached as high as, it was demonstrated that metal working fluid described in embodiment 1-5 has excellent under 4~5% concentration Greasy property.Comparative example 1 substitutes isomery hexadecane hydrocarbon using mineral oil, causes tapping torque value up to 99.4, and tapping efficiency is 118%；Comparative example 2 substitutes benzoic acid -2- ethylhexyls using decanedioic acid isooctanol ester, causes tapping torque value to be up to 77.2, Tapping efficiency is 152%, and lubricant effect is worse than embodiment 1；Comparative example 3 is added without Benzotriazole Derivative, causes tapping to be turned round Square value is up to 90.9, and tapping efficiency is 129%；The mass fraction of the consumption of the Benzotriazole Derivative of comparative example 4 is less than 3%, leads Cause tapping torque value up to 84.7, tapping efficiency is 138%；The mass fraction of the consumption of the Benzotriazole Derivative of comparative example 5 is big In 5%, tapping torque value is 66.0, and tapping efficiency is 178%, does not improve the greasy property of working fluid.And traditional product Tapping torque value is 117.2, and tapping efficiency is 100%, and lubricant effect is also less than embodiment 1-5.
By table 2 and table 3 as can be seen that the embodiment of the present invention 1 has good anti-microbial property and biological stability, and it is right Ratio 6 has selected ethoxy perhydro-s-triazine as bactericide, the organic amine of comparative example 7 selection open-chain crown ether and to MEA Mixture, cause the decline of the anti-microbial property and biological stability of metal working fluid.
Applicant states that the present invention illustrates detailed process equipment and the technological process of the present invention by above-described embodiment, But the invention is not limited in above-mentioned detailed process equipment and technological process, that is, do not mean that the present invention has to rely on above-mentioned detailed Process equipment and technological process could be implemented.Person of ordinary skill in the field it will be clearly understood that any improvement in the present invention, Addition, selection of concrete mode of equivalence replacement and auxiliary element to each raw material of product of the present invention etc., all fall within the present invention's Within the scope of protection domain and disclosure.

Claims (10)

1. a kind of metal working fluid, it is characterised in that the component of the metal working fluid include base oil, synthetic ester, organic acid, Organic amine, special lubricant, auxiliary agent and water.
2. metal working fluid according to claim 1, it is characterised in that according to metal working fluid described in mass percent meter Component include：
3. metal working fluid according to claim 1 or 2, it is characterised in that the base oil is isomery hexadecane hydrocarbon；
Preferably, the synthetic ester is benzoic acid -2- ethylhexyls and/or trimethylolpropane tris decylate.
4. the metal working fluid according to claim any one of 1-3, it is characterised in that the organic acid includes dimerization castor-oil plant Any one in oleic acid, appropriate youngster's oleic acid, isomery stearic acid, dodecanedioic acid, gluconic acid or neodecanoic acid or at least two combination；
Preferably, the organic amine includes diisopropanolamine (DIPA), 2- amino-2-methyls propyl alcohol, 3- butoxy propyl amines, N, N- diethyl Any one in aniline or hexa or at least two combination；
Preferably, the special lubricant is Benzotriazole Derivative.
5. the metal working fluid according to claim any one of 1-4, it is characterised in that the auxiliary agent includes emulsifying agent, idol Mixture, bactericide and defoamer.
6. metal working fluid according to claim 5, it is characterised in that the emulsifying agent includes alcohol ether carboxylate, fatty alcohol Any one in polyoxyethylene poly-oxygen propylene aether or polyisobutene maleic anhydride or at least two combination；
Preferably, the mass percent of the emulsifying agent is 1~2%；
Preferably, the coupling agent is triethylene glycol fourth machine ether；
Preferably, the mass percent of the coupling agent is 2~5%.
7. the metal working fluid according to claim 5 or 6, it is characterised in that the bactericide is 2- butyl -1,2- benzos The mixture of isothiazoline -3- ketone and the propane diol of 2- bromo -2- nitros -1,3；
Preferably, the mass percent of the bactericide is 1~2%；
Preferably, the defoamer is dimethicone；
Preferably, the mass percent of the defoamer is 0.05~0.1%.
8. the preparation method of the metal working fluid described in a kind of any one of claim 1-7, it is characterised in that methods described includes Following steps：
(1) base oil, synthetic ester, organic acid, organic amine and emulsifying agent are mixed under agitation, obtains the first compound；
(2) the first compound for obtaining step (1) is mixed under agitation with water, special lubricant, coupling agent and bactericide, Obtain the second compound；
(3) the second compound for obtaining step (2) is mixed under agitation with defoamer, obtains metal working fluid.
9. preparation method according to claim 8, it is characterised in that the mixing speed of step (1) described stirring is 400~ 800rpm；
Preferably, the time of step (1) described stirring is 20~40min；
Preferably, the temperature of step (1) described stirring is 25~40 DEG C；
Preferably, the mixing speed of step (2) described stirring is 400~800rpm；
Preferably, the time of step (2) described stirring is 20~40min；
Preferably, the temperature of step (2) described stirring is 25~40 DEG C；
Preferably, the mixing speed of step (3) described stirring is 400~800rpm；
Preferably, the time of step (3) described stirring is 20~40min；
Preferably, the temperature of step (3) described stirring is 25~40 DEG C.
10. a kind of purposes of the metal working fluid described in any one of claim 1-7, it is characterised in that the metal working fluid For processing automotive engine component.
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