CN107541328B - Emission-free recyclable water-based cutting fluid and preparation method thereof - Google Patents
Emission-free recyclable water-based cutting fluid and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a discharge-free recyclable water-based cutting fluid, which is characterized in that: the cutting fluid comprises the following raw materials in percentage by weight: 5-15% of high-viscosity water-soluble polyether SDN-20, 0.1-10% of graphene, 5-25% of polyether SDR-40, 2-20% of wetting agent, 0.2-1.5% of glacial acetic acid, 0.1-10% of complexing agent, 4-15% of antiwear agent, 5-15% of triethanolamine, 1-2% of German Shumei
Description
Technical Field
The invention relates to a metal processing fluid, in particular to a water-based cutting fluid which is used for cooling and lubricating a cutter or a workpiece and can be recycled without discharge in the processes of cutting, grinding and grinding metal and a preparation method thereof.
Background
Cutting fluid, also known as cutting fluid. Is an industrial liquid used for cooling and lubricating cutters and workpieces in the processes of cutting, grinding and milling metals. The cutting fluid is an important matched material for metal cutting processing. The water-based cutting fluid is prepared from an extreme pressure agent, an antirust agent, mineral oil and various surfactants, has the lubricating property and extreme pressure property of emulsified oil, and also has the environmental protection property, excellent cleaning property, long service life and the like of the synthetic cutting fluid. However, in the use process of the traditional cutting fluid, water, air, workpieces and dust can bring fungi into the cutting fluid, so that the cutting fluid smells and goes bad, the breeding of bacteria consumes the emulsifier, the oil phase is separated out, the concentration is reduced, the lubricating performance is reduced, the pH value is reduced due to the exhalation of carbon dioxide by the aerophilic bacteria, the anti-rust performance is reduced, the breeding of bacteria is further promoted, and vicious circle is caused, so that the breeding of bacteria not only makes the cutting fluid invalid and affects the service life, the service cycle is generally 3-6 months, frequent replacement is needed, the replaced waste liquid causes environmental pollution, the waste liquid is discharged to be excessively treated by environmental regulations, the production cost is increased, in addition, the performance of the traditional cutting fluid is not stable enough, and due to the insufficient lubricating capacity of water and easy rusting, various additives must be added, the components are quite complex, the components of the better cutting fluid in the prior art are about 20, complex chemical balance is formed in the solution, the balance can be maintained for a short time in the industrial production process, the performance of the cutting fluid fluctuates greatly, the component unbalance and the performance change of the cutting fluid are caused, and the processing quality is influenced. More importantly, because of the complex components, in order to meet different requirements, the content of a certain component needs to be increased, but after the content of the component is increased, other additives are added to inhibit the adverse effect of the addition, and the repeated circulation causes the variety of the cutting fluid to be complicated.
Disclosure of Invention
In view of the above, the present invention aims to provide a discharge-free recyclable aqueous cutting fluid and a preparation method thereof, wherein the discharge-free recyclable aqueous cutting fluid is free from replacement, and has excellent lubricating and cooling properties, wear resistance, extreme pressure resistance, rust resistance, corrosion resistance, high reverse solubility, biological stability and corrosion resistance, stable properties, environmental protection, excellent processability, simple production process, easily available raw materials, and good product universality.
The water-based cutting fluid which is free of discharge and can be recycled comprises the following raw materials in percentage by weight:
5-15% of high-viscosity water-soluble polyether SDN-20, 0.1-10% of graphene, 5-25% of polyether SDR-40, 2-20% of wetting agent, 0.2-1.5% of glacial acetic acid, 0.1-10% of complexing agent, 4-15% of antiwear agent, 5-15% of triethanolamine, 1-2% of German Shumei
OK and 20-77.6% water;
further, the cutting fluid comprises the following raw materials in percentage by weight:
10 percent of high-viscosity water-soluble polyether SDN-20, 5 percent of graphene, 15 percent of polyether SDR-40, 11 percent of wetting agent, 0.8 percent of glacial acetic acid, 5 percent of complexing agent,9% of antiwear agent, 10% of triethanolamine and 1.5% of German Shumei
OK and 32.7 water;
further, the wetting agent is polyethylene glycol 600;
further, the antiwear agent is alkanolamine borate;
further, the complexing agent is disodium EDTA;
further, the method comprises the following steps: mixing the raw materials according to the set weight percentage, and stirring and mixing at the blending temperature of 40-60 ℃;
further, the tempering temperature was 50 ℃.
The invention has the beneficial effects that: the invention relates to a discharge-free recyclable water-based cutting fluid and a preparation method thereof, which adopts high-viscosity water-soluble polyether SDN-20 and Polyether (PAG) SDR-40 to replace the traditional mineral oil, lubricates at high temperature when cutting, dissolves reversely after water cooling, adopts graphene to synergistically enhance the lubricating property, synergistically acts with other components to reduce bacterial growth, is discharge-free recyclable, does not need to be replaced, has excellent lubricating and cooling properties, wear-resistant extreme pressure property, rust-resistant and corrosion-resistant properties, high reverse solubility, biological stability and corrosion resistance, is stable in various properties, does not contain Cl and S, is stable and reliable in lubrication, has the adsorption effect changed due to different processing pressures, can correspondingly and well play the lubricating effect according to specific operation processes, has strong universality, can adapt to different processing processes, and further enhances the lubricating property of the cutting fluid due to the matched use of a wetting agent, the cutting fluid can reach a contact area well, the formation of cutting nodules is effectively prevented, the production process is simple, raw materials are easy to obtain, reasonable proportion is adopted, and the chemical balance formed by the components of the cutting fluid is stable. The device is suitable for manufacturing equipment, producing and processing automobiles and various mechanical parts, has an ultra-long service life, can further improve the use effect if being matched with proper use management (such as common floating oil skimming, impurity removal, scrap iron filtration, concentration control, pH value adjustment, sterilization) and other treatments, and can ensure the optimal use effect even if not replaced for a long time.
Detailed Description
The water-based cutting fluid which is free of discharge and can be recycled comprises the following raw materials in percentage by weight:
5-15% of high-viscosity water-soluble polyether SDN-20, 0.1-10% of graphene, 5-25% of polyether SDR-40, 2-20% of wetting agent, 0.2-1.5% of glacial acetic acid, 0.1-10% of complexing agent, 4-15% of antiwear agent, 5-15% of triethanolamine, 1-2% of German Shumei
OK and 20-77.6% water; the method comprises the steps of using high-viscosity water-soluble polyether SDN-20 as base oil of lubricating oil synthesized by Nanjing Wille chemical company to replace traditional mineral oil lubrication as an extreme pressure agent, using graphene as an extreme pressure agent and a lubricant, using pyrolysis sulfur phosphorus chloride generated by friction as a traditional lubricating additive to react with metal to generate a chemical film to play a lubricating role, using the graphene to block the contact of the metal, not generating heat, and having stronger lubricating property and temperature control capability, wherein the graphene is Changzhou graphene; polyether (PAG) SDR-40 is lubricated at high temperature during cutting and is reversely dissolved by water cooling, triethanolamine plays a comprehensive role of an alkali retention agent and an antirust agent, and Germany Shumei
OK is used as a bactericide, water is used as a coolant, and the components have synergistic effect to keep effective dynamic balance, so that the performance of the cutting fluid is stable. "high viscosity" means a viscosity of 20000 or more.
In the embodiment, the cutting fluid comprises the following raw materials in percentage by weight:
10% of high-viscosity water-soluble polyether SDN-20, 5% of graphene, 15% of polyether SDR-40, 11% of wetting agent, 0.8% of glacial acetic acid, 5% of complexing agent, 9% of antiwear agent, 10% of triethanolamine and 1.5% of German Shumei
OK and 32.7 water; this embodiment is the preferred embodiment.
In this example, the wetting agent is polyethylene glycol 600.
In this embodiment, the antiwear agent is an alkanolamine borate, and in this embodiment, the alkanolamine borate is preferred, and other antiwear agents capable of achieving the same function and effect in this composition may also be selected.
In this embodiment, the complexing agent is disodium EDTA, and in this embodiment, disodium EDTA is preferred, and other complexing agents that can achieve the same function and effect in this composition may be selected.
In this embodiment, the method includes the following steps: mixing the raw materials according to the set weight percentage, and stirring and mixing at the blending temperature of 40-60 ℃; adding water, adding various additives of the production raw materials under stirring in sequence until the solid matter is completely dissolved, and the viscous agent is completely dispersed and dissolved, and finishing the blending process. In order to improve the stirring effect, the SDN-20 water-soluble polyether with higher viscosity is added at the end to achieve the best effect.
In this example, the tempering temperature was 50 ℃.
The invention is further illustrated by the following specific examples.
Example one
The discharge-free recyclable water-based cutting fluid comprises the following raw materials in percentage by weight:
5% of high-viscosity water-soluble polyether SDN-20, 0.1% of graphene, 25% of polyether SDR-40, 2% of wetting agent, 1.5% of glacial acetic acid, 0.1% of complexing agent, 15% of antiwear agent, 15% of triethanolamine and 2% of German Shumei
OK and 34.3% water.
In this example, the wetting agent is polyethylene glycol 600.
In this embodiment, the antiwear agent is an alkanolamine borate, and in this embodiment, the alkanolamine borate is preferred, and other antiwear agents capable of achieving the same function and effect in this composition may also be selected.
In this embodiment, the complexing agent is disodium EDTA, and in this embodiment, disodium EDTA is preferred, and other complexing agents that can achieve the same function and effect in this composition may be selected.
Example two
The discharge-free recyclable water-based cutting fluid comprises the following raw materials in percentage by weight:
14.7 percent of high-viscosity water-soluble polyether SDN-20, 10 percent of graphene, 25 percent of polyether SDR-40, 20 percent of wetting agent, 0.2 percent of glacial acetic acid, 0.1 percent of complexing agent, 4 percent of antiwear agent, 5 percent of triethanolamine and 1 percent of German Shumei
OK and 20% water.
In this example, the wetting agent is polyethylene glycol 600.
In this embodiment, the antiwear agent is an alkanolamine borate, and in this embodiment, the alkanolamine borate is preferred, and other antiwear agents capable of achieving the same function and effect in this composition may also be selected.
In this embodiment, the complexing agent is disodium EDTA, and in this embodiment, disodium EDTA is preferred, and other complexing agents that can achieve the same function and effect in this composition may be selected.
EXAMPLE III
The discharge-free recyclable water-based cutting fluid comprises the following raw materials in percentage by weight:
5% of high-viscosity water-soluble polyether SDN-20, 10% of graphene, 10% of polyether SDR-40, 20% of wetting agent, 0.2% of glacial acetic acid, 10% of complexing agent, 4% of antiwear agent, 15% of triethanolamine and 1% of German Shumei
OK and 24.8% water.
In this example, the wetting agent is polyethylene glycol 600.
In this embodiment, the antiwear agent is an alkanolamine borate, and in this embodiment, the alkanolamine borate is preferred, and other antiwear agents capable of achieving the same function and effect in this composition may also be selected.
In this embodiment, the complexing agent is disodium EDTA, and in this embodiment, disodium EDTA is preferred, and other complexing agents that can achieve the same function and effect in this composition may be selected.
Example four
The discharge-free recyclable water-based cutting fluid comprises the following raw materials in percentage by weight:
8 percent of high-viscosity water-soluble polyether SDN-20, 8 percent of graphene, 20 percent of polyether SDR-40, 8 percent of wetting agent, 0.8 percent of glacial acetic acid, 5 percent of complexing agent, 15 percent of antiwear agent, 12 percent of triethanolamine and 1.5 percent of German Shumei
OK and 21.7% water.
In this example, the wetting agent is polyethylene glycol 600.
In this embodiment, the antiwear agent is an alkanolamine borate, and in this embodiment, the alkanolamine borate is preferred, and other antiwear agents capable of achieving the same function and effect in this composition may also be selected.
In this embodiment, the complexing agent is disodium EDTA, and in this embodiment, disodium EDTA is preferred, and other complexing agents that can achieve the same function and effect in this composition may be selected.
EXAMPLE five
The discharge-free recyclable water-based cutting fluid comprises the following raw materials in percentage by weight:
5% of high-viscosity water-soluble polyether SDN-20, 0.1% of graphene, 5% of polyether SDR-40, 2% of wetting agent, 0.2% of glacial acetic acid, 0.1% of complexing agent, 4% of antiwear agent, 5% of triethanolamine and 1% of German Shumei
OK and 77.6% water.
In this example, the wetting agent is polyethylene glycol 600.
In this embodiment, the antiwear agent is an alkanolamine borate, and in this embodiment, the alkanolamine borate is preferred, and other antiwear agents capable of achieving the same function and effect in this composition may also be selected.
In this embodiment, the complexing agent is disodium EDTA, and in this embodiment, disodium EDTA is preferred, and other complexing agents that can achieve the same function and effect in this composition may be selected.
EXAMPLE six
The cutting fluid comprises the following raw materials in percentage by weight:
10 percent of high-viscosity water-soluble polyether SDN-20, 5 percent of graphene, 15 percent of polyether SDR-40,
11 percent of wetting agent, 0.8 percent of glacial acetic acid, 5 percent of complexing agent, 9 percent of antiwear agent, 10 percent of triethanolamine and 1.5 percent of German Shumei
OK and 32.7 Water
In this example, the wetting agent is polyethylene glycol 600.
In this embodiment, the antiwear agent is an alkanolamine borate, and in this embodiment, the alkanolamine borate is preferred, and other antiwear agents capable of achieving the same function and effect in this composition may also be selected.
In this embodiment, the complexing agent is disodium EDTA, and in this embodiment, disodium EDTA is preferred, and other complexing agents that can achieve the same function and effect in this composition may be selected.
The performance indexes of the cutting fluid in the first embodiment after being continuously used for three years are shown as the following table:
therefore, the emission-free recyclable water-based cutting fluid has excellent long-life performance, wear-resistant extreme pressure property, rust resistance, corrosion resistance, high reverse solubility, biological stability and corrosion resistance, and can be used for a long time without replacement.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (7)
1. The water-based cutting fluid which is free of discharge and can be recycled is characterized in that: the cutting fluid comprises the following raw materials in percentage by weight:
5-15% of high-viscosity water-soluble polyether SDN-20, 0.1-10% of graphene, 5-25% of polyether SDR-40, 2-20% of wetting agent, 0.2-1.5% of glacial acetic acid, 0.1-10% of complexing agent, 4-15% of antiwear agent, 5-15% of triethanolamine, 1-2% of German Shumei
OK and 20-77.6% of water.
2. The emission-free recyclable aqueous cutting fluid according to claim 1, wherein: the cutting fluid comprises the following raw materials in percentage by weight:
10% of high-viscosity water-soluble polyether SDN-20, 5% of graphene, 15% of polyether SDR-40, 11% of wetting agent, 0.8% of glacial acetic acid, 5% of complexing agent, 9% of antiwear agent, 10% of triethanolamine and 1.5% of German Shumei
OK and 32.7% water.
3. The emission-free recyclable aqueous cutting fluid according to claim 1, wherein: the wetting agent is polyethylene glycol 600.
4. The emission-free recyclable aqueous cutting fluid according to claim 1, wherein: the antiwear agent is alcohol amine type boric acid ester.
5. The emission-free recyclable aqueous cutting fluid according to claim 1, wherein: the complexing agent is disodium EDTA.
6. The method for preparing the emission-free recyclable aqueous cutting fluid as claimed in claim 1, wherein: the method comprises the following steps: the raw materials are mixed according to the set weight percentage and then stirred and mixed at the blending temperature of 40-60 ℃.
7. The method for preparing the emission-free recyclable aqueous cutting fluid as claimed in claim 6, wherein: the tempering temperature was 50 ℃.
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| CN108315092B (en) * | 2018-01-09 | 2020-11-17 | 珠海美合科技股份有限公司 | Water-based environment-friendly fin forming cooling liquid and preparation method thereof |
| CN109054977B (en) * | 2018-08-31 | 2021-09-07 | 广东美商工业材料有限公司 | Graphene cutting fluid and preparation method thereof |
| CN110205195A (en) * | 2019-06-24 | 2019-09-06 | 湖北诚祥科技有限公司 | Antirust working fluid and preparation method thereof for rare earth material neodymium iron boron |
| CN111205919B (en) * | 2020-01-13 | 2021-11-16 | 库勃智能科技(上海)有限公司 | Environment-friendly biostable cutting fluid and preparation method thereof |
| US20210245328A1 (en) * | 2020-02-10 | 2021-08-12 | Enfield Engine Company, Inc. | Abrasive solvent jet cutting system and method |
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| CN104450009A (en) * | 2014-08-11 | 2015-03-25 | 全椒县新华机械有限责任公司 | Cutting fluid |
| CN104593132A (en) * | 2014-12-26 | 2015-05-06 | 上海禾泰特种润滑科技股份有限公司 | Metal cutting fluid containing graphene dispersion solution and preparation method thereof |
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| US20070010406A1 (en) * | 2003-03-24 | 2007-01-11 | Sanyo Chemical Industries, Ltd. | Lubricant for water-miscible metal working oil |
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| CN101126048A (en) * | 2007-09-13 | 2008-02-20 | 苏州市宝玛数控设备有限公司 | Water-base type line cutting working liquid |
| CN103242948A (en) * | 2013-05-09 | 2013-08-14 | 上海应用技术学院 | Water-based synthetic metal machining liquid containing graphene dispersion liquid and preparation method thereof |
| CN104450009A (en) * | 2014-08-11 | 2015-03-25 | 全椒县新华机械有限责任公司 | Cutting fluid |
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