CN103555392A - Ionic liquid-containing micro-emulsified metal cutting fluid, and preparation method and application thereof - Google Patents
Ionic liquid-containing micro-emulsified metal cutting fluid, and preparation method and application thereof Download PDFInfo
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- CN103555392A CN103555392A CN201310375426.0A CN201310375426A CN103555392A CN 103555392 A CN103555392 A CN 103555392A CN 201310375426 A CN201310375426 A CN 201310375426A CN 103555392 A CN103555392 A CN 103555392A
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Abstract
The invention discloses an ionic liquid-containing micro-emulsified metal cutting fluid, and a preparation method and an application thereof. The ionic liquid-containing microemulsified metal cutting fluid comprises poly(alpha-olefin), a nonionic surfactant, an anionic surfactant, an antirust agent, an ionic liquid, an extreme pressure additive, an antifoaming agent, a bactericide, a pH adjusting agent and water. The preparation method comprises the following steps: dumping the antirust agent into water to form a water system; sequentially adding the extreme pressure additive, the antifoaming agent and the bactericide into base oil to form an oil system; uniformly mixing the water system with the oil system, sequentially adding the nonionic surfactant, the anionic surfactant and the ionic liquid, uniformly mixing, and adjusting the pH value to 7.5-9 by using the pH adjusting agent to obtain the ionic liquid-containing micro-emulsified metal cutting fluid. The ionic liquid-containing micro-emulsified metal cutting fluid has the advantages of excellent high-and-low-temperature stability, good oxidation stability and thermal stability, lubrication, biodegradability, and long use period, and is suitable for the high-precision and high-requirement metal workpiece machining.
Description
Technical field
The present invention relates to a kind of microemulsified metal working fluid that contains ionic liquid and its preparation method and application.
Background technology
Metal cutting is the Main Means of mechanical engineering process components and parts, high-precision metal part particularly, in process of metal working, if at machine tool accuracy, workpiece material, cutter material, processing conditions, choose reasonable metal working fluid under the identical condition of the conditions such as workman's state of the art, to reducing friction, improve radiating condition, reduce process zone temperature, extend cutter, the work-ing life of emery wheel, improve workpiece accuracy, thereby reduce, workpiece surface roughness reduces cutting fluid use cost and raising Business Economic Benefit has a very important role, cutting fluid has cooling, lubricated, clean and antirust this four large function.In order to meet the requirement of industry to high-precision workpiece now, the high-performance of metal working fluid is also very important, particularly the lubricity of metal working fluid, abrasion resistance, extreme pressure property, Oxidation Stability etc. these be related to the correlated performance of processing effect, so it is very urgent to improve the over-all properties of metal working fluid.
The general name of the class I liquid I salt system that ionic liquid is comprised of organic cation and negatively charged ion, ionic liquid refers to and all ion, consists of, at room temperature or adjacent temperature, present liquid material, claim again ionic liquid at room temperature (RTILs), room temperature melting salt and room temperature organic salt etc.It is to consist of the relatively large organic cation of specific volume and the relatively little inorganic anion of volume, and it not only belongs to ionic fluent meterial; And there is " liquid state " character that solid matter does not have.This makes ionic liquid have liquid and solid functional performance concurrently, thus be called as " solid-state " liquid, or " liquid " molecular sieve.Thereby ionic liquid often shows unique character and distinctive function.Ionic liquid has following features: 1, there is no significant vapour pressure.2, there is good dissolving power.3, there is " establishing property ".4, there is good thermostability and chemical stability.5, be easy to and other separating substances reusable edible.6, preparation is simple.Ionic liquid is comprised of yin, yang ion, of a great variety, by change negatively charged ion, cationic various combination, can obtain different ionic liquids.
In the process for preparation of metal working fluid, add that ionic liquid can improve that water-base cutting fluid wearing and tearing are large, lubricant effect is bad, thermostability and these performances such as chemical stability is bad.Due to water-base cutting fluid, need to add the additives such as rust-preventive agent, extreme-pressure additive, defoamer, and ionic liquid there is good solute effect, add after ionic liquid and can improve well and dissolve bad shortcoming.
Summary of the invention
One of object of the present invention is that, in order to solve some drawbacks of traditional metal cutting fluid, for example, in water-base cutting fluid use procedure, tool wear is excessive, lubricant effect is not good and oily water separation, and a kind of microemulsified metal working fluid that contains ionic liquid is provided.The microemulsified metal working fluid that this contains ionic liquid has good lubricated, cooling and antifriction performance, biological degradability, applicable to the machining of the metal works of high precision, high request.After it uses, reduced the cost of aftertreatment, simultaneously nontoxic to environment and human health.
The preparation method of a kind of microemulsified metal working fluid that contains ionic liquid that two of object of the present invention is to provide above-mentioned.
Three of object of the present invention be by above-mentioned a kind of microemulsified metal working fluid that contains ionic liquid for metal, the machining of the metal works of high precision, high request particularly, the particularly metal cutting such as boats and ships, heavy industry processing.
Technical scheme of the present invention
A microemulsified metal working fluid for ionic liquid, counts by weight percentage, and its raw material composition and content are as follows:
Base oil 20-25%
Nonionogenic tenside 16-24%
Anion surfactant 4-6%
Rust-preventive agent 8-12%
Ionic liquid 3-4%
Extreme-pressure additive 2-3%
Defoamer 1-2%
Sterilant 0.5-1%
Surplus is water;
Wherein said base oil is polyalphaolefin;
Described nonionogenic tenside is straight-chain fatty alcohol Soxylat A 25-7, and described straight-chain fatty alcohol Soxylat A 25-7 is preferably the MOA-10 of Hai'an, Jiangsu petroleum chemical plant;
Described anion surfactant is sulfonated petro-leum, and described sulfonated petro-leum is preferably the straight chained alkyl sodium sulfonate of carbon chain lengths average out to 14～18;
Above-mentioned nonionogenic tenside, anion surfactant calculate in mass ratio, and its optimum proportion is nonionogenic tenside: anion surface activity is 3.2:1;
Described rust-preventive agent is the mixture that trolamine boric acid ester and Yatall MA form;
Described extreme-pressure additive is sulfide isobutene;
Described defoamer is triethanolamine oleate;
Described sterilant is isothiazolinone;
Described ionic liquid is prepared by a method comprising the following steps:
Press dehydrated alcohol: N, N-dimethyl tetradecylamine: the ratio that Isosorbide-5-Nitrae-dibromobutane is 1ml:0.4g:0.167g, by dehydrated alcohol, N, N-dimethyl tetradecylamine and the Isosorbide-5-Nitrae-rear control of dibromobutane mixing temperature is 85 ℃ and carries out back flow reaction 48h, obtains reaction solution;
Then, use in mass ratio and calculate, be i.e. ethyl acetate: ethanol is that the ethyl acetate-ethanol mixed solution forming of 2-3:1 ratio carries out after 3-4 recrystallization the reaction solution of above-mentioned gained, 55-65 ℃ of oven dry, obtains ionic liquid.
The preparation method of above-mentioned a kind of microemulsified metal working fluid that contains ionic liquid, specifically comprises the steps:
(1), rust-preventive agent is poured into water, formation water system stirs;
(2), extreme-pressure additive, defoamer, sterilant are added in base oil successively to the oily system of the formation that stirs;
(3), the formed water system of step (1) and the formed oil system of step (2) mixed and stirred after,
While stirring, add successively nonionogenic tenside, anion surfactant and ionic liquid again, mix and by pH adjusting agent, regulate pH value to 7.5-9 afterwards, the microemulsion system that obtains homogeneous, clarification is a kind of microemulsified metal working fluid that contains ionic liquid;
Described pH adjusting agent is sodium carbonate, is preferably mass percent concentration and is 10% aqueous sodium carbonate.
A kind of microemulsified metal working fluid that contains ionic liquid of above-mentioned gained is for the machining of the metal works of high precision, high request, the particularly metal cutting such as boats and ships, heavy industry processing, is diluted 20 times with deionized water or distilled water when it uses and is used afterwards.
Beneficial effect of the present invention
A kind of microemulsified metal working fluid that contains ionic liquid of the present invention, due to adding of ionic liquid, therefore for microemulsified metal working fluid provides good lubricated, cooling and antifriction performance and environmental protection, applicable to the machining of the metal works of high precision, high request.
Further, a kind of microemulsified metal working fluid that contains ionic liquid of the present invention, owing to having good oilness, resistance to abrasion and biological degradability, after it uses, has reduced the cost of aftertreatment, simultaneously nontoxic to environment and human health.
Embodiment
Below by specific embodiment, technical scheme of the present invention is further elaborated, but does not limit the present invention.
The present invention's anion surfactant used is chemical pure, and manufacturer is Chemical Reagent Co., Ltd., Sinopharm Group.
The present invention's nonionogenic tenside straight-chain fatty alcohol Soxylat A 25-7 used is that Hai'an, Jiangsu petroleum chemical plant is produced;
Petroleum sodium sulfonate, Yatall MA are that Shanghai Zhen Wei Chemical Co., Ltd. produces;
Polyalphaolefin used is that Suifenhe City Wan Fengyuan economy and trade limited liability company produces.
Described N, N-dimethyl tetradecylamine, Isosorbide-5-Nitrae-dibromobutane and ethyl acetate are analytical pure.
In the present invention, for the special raw material indicating, be commercially available.
embodiment 1
A microemulsified metal working fluid for ionic liquid, counts by weight percentage, and its raw material composition and content are as follows:
Base oil 25g (25%)
Nonionogenic tenside 24g (24%)
Anion surfactant 6g (6%)
Rust-preventive agent 12g (12%)
Ionic liquid 4g (4%)
Extreme-pressure additive 3g (3%)
Defoamer 2g (2%)
Sterilant 1g (1%)
Surplus is water 23g (23%);
Wherein said base oil is polyalphaolefin;
Described nonionogenic tenside is the MOA-10 of Hai'an, Jiangsu petroleum chemical plant;
Described anion surfactant is the straight chained alkyl sodium sulfonate of carbon chain lengths average out to 14～18;
Above-mentioned nonionogenic tenside, anion surfactant calculate in mass ratio, and its optimum proportion is nonionogenic tenside: anion surface activity is 3.2:1;
Described rust-preventive agent is that trolamine boric acid ester and Yatall MA calculate in mass ratio, i.e. trolamine boric acid ester: Yatall MA is the mixture that 1:3 forms;
Described extreme-pressure additive is sulfide isobutene;
Described defoamer is triethanolamine oleate;
Described sterilant is isothiazolinone;
Described ionic liquid is prepared by a method comprising the following steps:
Press dehydrated alcohol: N, N-dimethyl tetradecylamine: 1,4-dibromobutane is the ratio of 10ml:4g:1.67g, by 30ml dehydrated alcohol, 12gN, 1 of N-dimethyl tetradecylamine and 5g, 4-dibromobutane adds four-hole distilling flask, is slowly heated to 85 ℃ of back flow reaction 48h, obtains reaction solution;
Then, with calculating in mass ratio, be ethyl acetate: the ethyl acetate-ethanol mixed solution that the ratio that ethanol is 2-3:1 forms carries out recrystallization 3-4 time to the reaction solution of above-mentioned gained, gained crystallisate obtains ionic liquid in 55-65 ℃ of dry 10h in vacuum drying oven.
The preparation method of above-mentioned a kind of microemulsified metal working fluid that contains ionic liquid, specifically comprises the steps:
(1), 12g is calculated in mass ratio by trolamine boric acid ester and Yatall MA, i.e. trolamine boric acid ester: Yatall MA is that the rust-preventive agent that 1:3 forms is poured in 23g water, and formation water system stirs;
(2), 3g sulfide isobutene, 2g triethanolamine oleate, 1g isothiazolinone are added in 25g polyalphaolefin successively to the oily system of the formation that stirs;
(3), the formed water system of step (1) and the formed oil system of step (2) mixed and stirred after,
Again while stirring the ionic liquid that adds successively 24g tensio-active agent MOA-10,6g petroleum sodium sulfonate and the above-mentioned gained of 4g, the aqueous sodium carbonate that the system that mixes rear gained is 10% with mass percent concentration regulates pH value to 8.5, obtains 100 grams of microemulsified metal working fluids that contain ionic liquid of homogeneous, clarification;
control Example 1
Containing a microemulsified metal working fluid for ionic liquid, its preparation method comprises the steps:
(1), 10g is calculated in mass ratio by trolamine boric acid ester and Yatall MA, i.e. trolamine boric acid ester: Yatall MA is that the rust-preventive agent that 1:3 forms is poured in 38.5g water, and formation water system stirs;
(2), 2.5g sulfide isobutene, 1.2g triethanolamine oleate, 0.8g isothiazolinone are added in 20g polyalphaolefin successively to the oily system of the formation that stirs;
(3), the formed water system of step (1) and the formed oil system of step (2) mixed and stirred after,
While stirring, add successively 22g tensio-active agent MOA-10,5g petroleum sodium sulfonate again, the system that mixes rear gained is adjusted the pH value to 8.5 of above-mentioned system with the aqueous sodium carbonate that mass percent concentration is 10%, and the 100g that finally obtains homogeneous, clarification does not contain the microemulsified metal working fluid of ionic liquid;
embodiment 2
A microemulsified metal working fluid for ionic liquid, counts by weight percentage, and its raw material composition and content are as follows:
Base oil 20g (20%)
Nonionogenic tenside 16g (16%)
Anion surfactant 4g (4%)
Rust-preventive agent 8g (8%)
Ionic liquid 3g (3%)
Extreme-pressure additive 2g (2%)
Defoamer 1g (1%)
Sterilant 0.5g (0.5%)
Surplus is water 45.5g (45.5%);
Wherein said base oil is polyalphaolefin;
Described nonionogenic tenside is the MOA-10 of Hai'an, Jiangsu petroleum chemical plant;
Described anion surfactant is the straight chained alkyl sodium sulfonate of carbon chain lengths average out to 14～18;
Above-mentioned nonionogenic tenside, anion surfactant calculate in mass ratio, and its optimum proportion is nonionogenic tenside: anion surface activity is 3.2:1;
Described rust-preventive agent is that trolamine boric acid ester and Yatall MA calculate in mass ratio, i.e. trolamine boric acid ester: Yatall MA is the mixture that 1:3 forms;
Described extreme-pressure additive is sulfide isobutene;
Described defoamer is triethanolamine oleate;
Described sterilant is isothiazolinone;
Described ionic liquid is prepared by a method comprising the following steps:
Press dehydrated alcohol: N, N-dimethyl tetradecylamine: 1,4-dibromobutane is the ratio of 10ml:4g:1.67g, by 30ml dehydrated alcohol, 12gN, 1 of N-dimethyl tetradecylamine and 5g, 4-dibromobutane adds four-hole distilling flask, is slowly heated to 85 ℃ of back flow reaction 48h, obtains reaction solution;
Then, with calculating in mass ratio, be ethyl acetate: the ethyl acetate-ethanol mixed solution that the ratio that ethanol is 2-3:1 forms carries out recrystallization 3-4 time to the reaction solution of above-mentioned gained, gained crystallisate obtains ionic liquid in 55-65 ℃ of dry 10h in vacuum drying oven.
The preparation method of above-mentioned a kind of microemulsified metal working fluid that contains ionic liquid, specifically comprises the steps:
(1), mixture that 8g trolamine boric acid ester and Yatall MA are formed pours in 45.5g water, formation water system stirs;
(2), 2g sulfide isobutene, 1g triethanolamine oleate, 0.5g isothiazolinone are added in 20g polyalphaolefin successively to the oily system of the formation that stirs;
(3), the formed water system of step (1) and the formed oil system of step (2) mixed and stirred after,
Again while stirring the ionic liquid that adds successively 16g tensio-active agent MOA-10,4g petroleum sodium sulfonate and the above-mentioned gained of 3g, mix the system of rear gained, the aqueous sodium carbonate that is 10% with mass percent concentration regulates pH value to 8.5, obtains 100 grams of microemulsified metal working fluids that contain ionic liquid of homogeneous, clarification.
Performance to the microemulsified metal working fluid of above-described embodiment 1, embodiment 2 and control Example 1 gained is tested, and the results are shown in Table 1:
In upper table, the data of the rust-preventing characteristic of embodiment 1, embodiment 2 and control Example 1, corrodibility, sintering carrying, frictional coefficient, wear scar diameter and biological degradability etc. contrast, and can find out:
The microemulsified metal working fluid that contains ionic liquid of embodiment 1 and embodiment 2 gained is than in control Example 1, rust-preventing characteristic and the corrodibility containing the micro emulsion metal working fluid of ionic liquid is not good;
The sintering carrying P of the microemulsion metal working fluid that contains ionic liquid of embodiment 1 and embodiment 2 gained
dthan the sintering carrying P of the microemulsion metal working fluid that does not contain ionic liquid of control Example 1 gained
dgreatly, and frictional coefficient and the spot diameter that rubs are all little, and adding of this explanation ionic liquid has good effect to improving the abrasion resistance of microemulsion metal working fluid.
The microemulsified metal working fluid that contains ionic liquid of embodiment 1, embodiment 2 gained was at biological degradation percentage ratio Dou≤85% of 28 days, therefore biological degradability is good, and biological degradation Bai Fen Shuo≤75% at 28 days containing the microemulsified metal working fluid of ionic liquid not shows that have good effect to improving the biodegradability of microemulsion metal working fluid adding of ionic liquid thus.
Further, as can be seen from Table 1, rust-preventing characteristic, non-corrosibility and the resistance to abrasion of a kind of microemulsified metal working fluid that contains ionic liquid of the present invention are all better than national standard.
Further, the PB value result that four ball methods from table 1 record shows, the PB value of the microemulsion metal working fluid that contains ionic liquid of embodiment 1 and embodiment 2 gained is larger than the PB value of the microemulsion metal working fluid that does not contain ionic liquid of control Example 1 gained, and embodiment 1, embodiment 2 and control Example 1 are all better than GB, therefore and at room temperature place and within 90 days, still stablize not stratifiedly, there is very excellent stability.
In sum, a kind of microemulsified metal working fluid that contains ionic liquid of the present invention has good oilness, resistance to abrasion, biological degradability and stability, therefore after it uses, reduced the cost of aftertreatment, simultaneously nontoxic to environment and human health, be applicable to the machining of the metal works of high precision, high request.
Above said content is only the basic explanation of the present invention under conceiving, and according to any equivalent transformation that technical scheme of the present invention is done, all should belong to protection scope of the present invention.
Claims (8)
1. a microemulsified metal working fluid that contains ionic liquid, is characterized in that counting by weight percentage, and its raw material composition and content are as follows:
Base oil 20-25%
Nonionogenic tenside 16-24%
Anion surfactant 4-6%
Rust-preventive agent 8-12%
Ionic liquid 3-4%
Extreme-pressure additive 2-3%
Defoamer 1-2%
Sterilant 0.5-1%
Surplus is water;
Wherein said base oil is polyalphaolefin;
Described nonionogenic tenside is straight-chain fatty alcohol Soxylat A 25-7;
Described anion surfactant is sulfonated petro-leum;
Described rust-preventive agent is the mixture that trolamine boric acid ester and Yatall MA form;
Described extreme-pressure additive is sulfide isobutene;
Described defoamer is triethanolamine oleate;
Described sterilant is isothiazolinone;
Described ionic liquid is prepared by a method comprising the following steps:
Press dehydrated alcohol: N, N-dimethyl tetradecylamine: the ratio that Isosorbide-5-Nitrae-dibromobutane is 1ml:0.4g:0.167g, by dehydrated alcohol, N, N-dimethyl tetradecylamine and the Isosorbide-5-Nitrae-rear control of dibromobutane mixing temperature is 85 ℃ and carries out back flow reaction 48h, obtains reaction solution;
Then, calculate in mass ratio, by ethyl acetate: the ethyl acetate-ethanol mixed solution that the ratio that ethanol is 2-3:1 forms carries out after 3-4 recrystallization the reaction solution of above-mentioned gained, 55-65 ℃ of oven dry, obtains ionic liquid;
Above-mentioned a kind of microemulsified metal working fluid that contains ionic liquid is prepared by a method comprising the following steps and obtains:
(1), rust-preventive agent is poured into water, formation water system stirs;
(2), extreme-pressure additive, defoamer, sterilant are added in base oil successively to the oily system of the formation that stirs;
(3), the formed water system of step (1) and the formed oil system of step (2) mixed and stirred after,
While stirring, add successively nonionogenic tenside, anion surfactant and ionic liquid again, mix and by pH adjusting agent, regulate pH value to 7.5-9 afterwards, must contain the microemulsified metal working fluid of ionic liquid;
Described pH adjusting agent is sodium carbonate.
2. a kind of microemulsified metal working fluid that contains ionic liquid as claimed in claim 1, is characterized in that described straight-chain fatty alcohol Soxylat A 25-7 is the MOA-10 that Hai'an, Jiangsu petroleum chemical plant is produced.
3. a kind of microemulsified metal working fluid that contains ionic liquid as claimed in claim 2, is characterized in that described sulfonated petro-leum is the straight chained alkyl sodium sulfonate of carbon chain lengths average out to 14～18.
4. a kind of microemulsified metal working fluid that polyalphaolefin is base oil of take as claimed in claim 3, it is characterized in that described nonionogenic tenside, anion surfactant calculate in mass ratio, nonionogenic tenside: anion surfactant is 3.2:1.
5. the preparation method of a kind of microemulsified metal working fluid that contains ionic liquid as described in claim 1,2,3 or 4 arbitrary claims, is characterized in that specifically comprising the steps:
(1), rust-preventive agent is poured into water, formation water system stirs;
(2), extreme-pressure additive, defoamer, sterilant are added in base oil successively to the oily system of the formation that stirs;
(3), the formed water system of step (1) and the formed oil system of step (2) mixed and stirred after,
While stirring, add successively nonionogenic tenside, anion surfactant and ionic liquid again, mix and by pH adjusting agent, regulate pH value to 7.5-9 afterwards, must contain the microemulsified metal working fluid of ionic liquid;
Described pH adjusting agent is sodium carbonate;
Described ionic liquid is prepared by a method comprising the following steps:
Press dehydrated alcohol: N, N-dimethyl tetradecylamine: the ratio that Isosorbide-5-Nitrae-dibromobutane is 1ml:0.4g:0.167g, by dehydrated alcohol, N, N-dimethyl tetradecylamine and the Isosorbide-5-Nitrae-rear control of dibromobutane mixing temperature is 85 ℃ and carries out back flow reaction 48h, obtains reaction solution;
Then, use in mass ratio and calculate, be i.e. ethyl acetate: the ethyl acetate-ethanol mixed solution that the ratio that ethanol is 2-3:1 forms carries out after 3-4 recrystallization the reaction solution of above-mentioned gained, 55-65 ℃ of oven dry, obtains ionic liquid.
6. the preparation method of a kind of microemulsified metal working fluid that contains ionic liquid as claimed in claim 5, is characterized in that the pH adjusting agent described in step (3) is that mass percent concentration is 10% aqueous sodium carbonate.
7. a kind of microemulsified metal working fluid that contains ionic liquid as described in claim 1,2,3 or 4 arbitrary claims is processed for metal cutting, is diluted 20 times use afterwards when it uses with deionized water or distilled water.
8. a kind of microemulsified metal working fluid that contains ionic liquid as described in claim 1,2,3 or 4 arbitrary claims, for the metal cutting processing of boats and ships or heavy industry, is diluted 20 times with deionized water or distilled water when it uses and is used afterwards.
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| CN104342262A (en) * | 2014-09-28 | 2015-02-11 | 苏州长盛机电有限公司 | Preparation method of biodegradable cutting fluid |
| CN105132114A (en) * | 2015-10-13 | 2015-12-09 | 太仓市和准电子科技有限公司 | Cutting fluid for hardware processing |
| CN105296112A (en) * | 2015-11-18 | 2016-02-03 | 苏州市宝玛数控设备有限公司 | Micro-emulsification cutting fluid preparation method |
| CN106635360A (en) * | 2016-09-13 | 2017-05-10 | 北京科技大学 | High-temperature environment-friendly water-based ionic liquid lubricant |
| CN112375602A (en) * | 2020-11-20 | 2021-02-19 | 常熟理工学院 | Ionic liquid-based nanofluid cutting fluid and preparation method thereof |
| CN115851359A (en) * | 2022-12-28 | 2023-03-28 | 河南减碳科技有限公司 | Environment-friendly metal cutting fluid and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104342262A (en) * | 2014-09-28 | 2015-02-11 | 苏州长盛机电有限公司 | Preparation method of biodegradable cutting fluid |
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| CN112375602A (en) * | 2020-11-20 | 2021-02-19 | 常熟理工学院 | Ionic liquid-based nanofluid cutting fluid and preparation method thereof |
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| CN115851359A (en) * | 2022-12-28 | 2023-03-28 | 河南减碳科技有限公司 | Environment-friendly metal cutting fluid and preparation method and application thereof |
| CN115851359B (en) * | 2022-12-28 | 2024-02-23 | 河南减碳科技有限公司 | Environment-friendly metal cutting fluid and preparation method and application thereof |
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Application publication date: 20140205 |