Cutting fluid for metal processing
Through the coordinated coordination of base oil, surfactant, modified silane coupling agent and nanoparticles with specific proportions and modifications, the problem of poor lubrication performance and stability of the cutting fluid is solved, and efficient and economical cutting fluid for metal processing is achieved.
Patent Information
- Application Number
- CN202510218361.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2025-07-04
AI Technical Summary
The lubricating performance and high temperature resistance and corrosion resistance of existing cutting fluids for metal processing have poor lubricating properties and high cost, which are prone to stratification and lead to unstable performance.
The cutting fluid is prepared by using base oils, surfactants, modified silane coupling agents, nanoparticles and emulsification additives of specific ratios, and the modified silane coupling agents and nanoparticles are coordinated to improve interfacial properties and stability.
It significantly improves the lubricating performance and high temperature resistance and corrosion resistance of cutting fluid, reduces costs and prevents stratification, and improves the efficiency of use.
Smart Images
Figure SMS_1
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of cutting fluids, and in particular to a cutting fluid for metal processing. Background Art
[0002] The cutting fluid is prepared with the water phase and the oil phase separately, and then mixed and stirred until uniform. The cost of metal processing cutting fluid is high when it is directly atomized and used. It is not conducive to storage after adding diluent, and stratification is prone to occur, resulting in unstable cutting fluid performance.
[0003] Existing cutting fluids are made of a combination of oil phase and water phase. The raw material interface is poor, which leads to poor lubrication performance. At the same time, the product has poor high temperature resistance and corrosion resistance, which limits the product's efficiency. Summary of the invention
[0004] In view of the defects of the prior art, the object of the present invention is to provide a cutting fluid for metal processing to solve the problems raised in the above background technology.
[0005] The present invention solves the technical problem by adopting the following technical solution: The present invention provides a cutting fluid for metal processing, comprising the following raw materials in parts by weight: 30-35 parts of base oil, 15-25 parts of surfactant, 6-10 parts of modified silane coupling agent, 5-8 parts of nanoparticles, 3-6 parts of emulsifying agent, and 10-15 parts of water.
[0006] Preferably, the cutting fluid is the following raw materials in parts by weight: 32.5 parts of base oil, 20 parts of surfactant, 8 parts of modified silane coupling agent, 6.5 parts of nanoparticles, 4.5 parts of emulsifying agent, and 12.5 parts of water.
[0007] Preferably, the base oil is palm oil, epoxidized soybean oil and lard in a weight ratio of 2:1:1, all of which are winterized and liquefied and then vulcanized with N,N-phenylene bismaleimide, the amount of N,N-phenylene bismaleimide added is 5% of the total amount of palm oil, the vulcanization temperature is 300°C, and the vulcanization time is 1h; the surfactant is sodium dodecylbenzene sulfonate; the emulsifying aid is alkylphenol polyoxyethylene ether.
[0008] Preferably, the preparation method of the modified silane coupling agent is: S1: Add 2-4 parts of nano-alumina and 1-2 parts of lanthanum oxide to 5-8 parts of sodium dodecylbenzene sulfonate solution, then add 2-3 parts of stearic acid, and stir thoroughly to obtain a modified solution; S2: immersing the nano-titanium dioxide in a sufficient amount of modification liquid and stirring for modification treatment, and after the stirring is completed, filtering and drying are performed to obtain a nano-titanium dioxide modifier; S3: Add 2 - 3 parts of silane coupling agent and 1 - 2 parts of chitosan solution into 5 - 8 parts of ethanol solvent. Then add 2 - 4 parts of nano - titanium dioxide modifier and stir well. Subsequently, filter by suction and dry to obtain the modified silane coupling agent.
[0009] Preferably, the mass fraction of the sodium dodecylbenzenesulfonate solution is 2 - 5%; the mass fraction of the chitosan solution is 4 - 6%.
[0010] Preferably, the stirring speed of the stirring modification treatment is 550 - 750 r / min, and the stirring time is 1 h.
[0011] Preferably, the preparation method of the nanoparticles is as follows: S11: Add 2 - 4 parts of carboxymethyl cellulose and 1 - 3 parts of nano - silica sol into 5 - 8 parts of yttrium nitrate solution. Then add 2 - 4 parts of nano - hydroxyapatite and stir well to obtain a conditioning liquid. S12: Ultrasonically treat nano - kaolin in a conditioning liquid that is 3 - 5 times the total amount of nano - kaolin. After the ultrasonic treatment ends, filter by suction and dry to obtain the nanoparticles.
[0012] Preferably, the ultrasonic power of the ultrasonic treatment is 350 - 400 W, and the ultrasonic time is 1 - 2 h.
[0013] Preferably, the mass fraction of the yttrium nitrate solution is 2 - 5%.
[0014] Preferably, the preparation method of the cutting fluid is as follows: Stir the surfactant, water and nanoparticles evenly to obtain a first product. Then stir the base oil, emulsification aid and modified silane coupling agent evenly to obtain a second product. Mix the first product and the second product evenly to obtain the cutting fluid.
[0015] Compared with the prior art, the present invention has the following beneficial effects: The cutting fluid for metal processing of the present invention uses a base oil obtained by subjecting palm oil, epoxy soybean oil and lard with a weight ratio of 2:1:1 to winterization and liquefaction treatment and then performing vulcanization treatment with N, N - m - phenylenedimaleimide. It is adjusted by a surfactant and an emulsification aid, and is further coordinated with a modified silane coupling agent and nanoparticles. With the specific coordination of the modified silane coupling agent and nanoparticles of the present invention, the interfacial effect of the product raw materials is remarkable, the lubrication performance of the product is good, and at the same time, the high - temperature resistance and corrosion resistance stability of the product are remarkable. Detailed Embodiments
[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0017] A cutting fluid for metal processing in this embodiment includes the following raw materials in parts by weight: 30 - 35 parts of base oil, 15 - 25 parts of surfactant, 6 - 10 parts of modified silane coupling agent, 5 - 8 parts of nanoparticles, 3 - 6 parts of emulsification aid, and 10 - 15 parts of water.
[0018] The cutting fluid in this embodiment is composed of the following raw materials in parts by weight: 32.5 parts of base oil, 20 parts of surfactant, 8 parts of modified silane coupling agent, 6.5 parts of nanoparticles, 4.5 parts of emulsification aid, and 12.5 parts of water.
[0019] The base oil in this embodiment is palm oil, epoxy soybean oil, and lard, which are winterized and liquefied according to the weight ratio of 2:1:1 and then sulfonated with N,N - m - phenylene bismaleimide. The addition amount of N,N - m - phenylene bismaleimide is 5% of the total amount of palm oil, the sulfonation temperature is 300 °C, and the sulfonation time is 1 h; the surfactant is sodium dodecylbenzenesulfonate; the emulsification aid is alkylphenol polyoxyethylene ether.
[0020] The preparation method of the modified silane coupling agent in this embodiment is as follows: S1: Add 2 - 4 parts of nano - alumina and 1 - 2 parts of lanthanum oxide to 5 - 8 parts of sodium dodecylbenzenesulfonate solution, and then add 2 - 3 parts of stearic acid, and stir well to obtain a modified solution; S2: Immerse nano - titanium dioxide into a sufficient amount of the modified solution for stirring and modification treatment. After stirring, filter and dry to obtain a nano - titanium dioxide modifier; S3: Add 2 - 3 parts of silane coupling agent and 1 - 2 parts of chitosan solution to 5 - 8 parts of ethanol solvent, then add 2 - 4 parts of nano - titanium dioxide modifier and stir well, then filter and dry to obtain a modified silane coupling agent.
[0021] The mass fraction of the sodium dodecylbenzenesulfonate solution in this embodiment is 2 - 5%; the mass fraction of the chitosan solution is 4 - 6%.
[0022] The stirring speed of the stirring modification treatment in this embodiment is 550 - 750 r / min, and the stirring time is 1 h.
[0023] The preparation method of the nanoparticles in this embodiment is as follows: S11: Add 2 - 4 parts of carboxymethyl cellulose and 1 - 3 parts of nano - silica sol into 5 - 8 parts of yttrium nitrate solution, then add 2 - 4 parts of nano - hydroxyapatite, and stir well to obtain the conditioning liquid; S12: Ultrasonically treat nano - kaolin in a conditioning liquid that is 3 - 5 times the total amount of nano - kaolin. After the ultrasonic treatment ends, filter by suction and dry to obtain nanoparticles.
[0024] In this example, the ultrasonic power of the ultrasonic treatment is 350 - 400 W, and the ultrasonic time is 1 - 2 h.
[0025] In this example, the mass fraction of the yttrium nitrate solution is 2 - 5%.
[0026] The preparation method of the cutting fluid in this example is as follows: Stir the surfactant, water, and nanoparticles evenly to obtain the first product, then stir the base oil, emulsification aid, and modified silane coupling agent evenly to obtain the second product, and continue to mix the first product and the second product evenly to obtain the cutting fluid.
[0027] Example 1. A cutting fluid for metal processing in this example includes the following raw materials in parts by weight: 30 parts of base oil, 15 parts of surfactant, 6 parts of modified silane coupling agent, 5 parts of nanoparticles, 3 parts of emulsification aid, and 10 parts of water.
[0028] The base oil in this example is palm oil, epoxy soybean oil, and lard, which are winterized and liquefied according to the weight ratio of 2:1:1, and then vulcanized with N, N - m - phenylene bismaleimide. The addition amount of N, N - m - phenylene bismaleimide is 5% of the total amount of palm oil, the vulcanization temperature is 300 °C, and the vulcanization time is 1 h; the surfactant is sodium dodecylbenzenesulfonate; the emulsification aid is alkylphenol polyoxyethylene ether.
[0029] The preparation method of the modified silane coupling agent in this example is as follows: S1: Add 2 parts of nano - alumina and 1 part of lanthanum oxide into 5 parts of sodium dodecylbenzenesulfonate solution, then add 2 parts of stearic acid, and stir well to obtain the modified liquid; S2: Immerse nano - titanium dioxide into a sufficient amount of the modified liquid and stir for modification treatment. After the stirring ends, filter by suction and dry to obtain the nano - titanium dioxide modifier; S3: Add 2 parts of silane coupling agent and 1 part of chitosan solution into 5 parts of ethanol solvent, then add 2 parts of nano - titanium dioxide modifier and stir well, then filter by suction and dry to obtain the modified silane coupling agent.
[0030] In this example, the mass fraction of the sodium dodecylbenzenesulfonate solution is 2%; the mass fraction of the chitosan solution is 4%.
[0031] The stirring speed for the stirring modification treatment in this embodiment is 550 r / min, and the stirring time is 1 h.
[0032] The preparation method of the nanoparticles in this embodiment is as follows: S11: Add 2 parts of carboxymethyl cellulose and 1 part of nano-silica sol into 5 parts of yttrium nitrate solution, and then add 2 parts of nano-hydroxyapatite, and stir well to obtain a conditioning solution; S12: Ultrasonically treat nano-kaolin in a conditioning solution that is 3 times the total amount of nano-kaolin. After the ultrasonic treatment is completed, filter by suction and dry to obtain nanoparticles.
[0033] The ultrasonic power for the ultrasonic treatment in this embodiment is 350 W, and the ultrasonic time is 1 h.
[0034] The mass fraction of the yttrium nitrate solution in this embodiment is 2%.
[0035] The preparation method of the cutting fluid in this embodiment is as follows: Stir the surfactant, water and nanoparticles evenly to obtain a first product, then stir the base oil, emulsification aid and modified silane coupling agent evenly to obtain a second product, and continue to mix the first product and the second product evenly to obtain the cutting fluid.
[0036] Example 2. A cutting fluid for metal processing in this embodiment includes the following raw materials in parts by weight: 35 parts of base oil, 25 parts of surfactant, 10 parts of modified silane coupling agent, 8 parts of nanoparticles, 6 parts of emulsification aid, 15 parts of water.
[0037] The base oil in this embodiment is palm oil, epoxy soybean oil and lard, which are winterized and liquefied according to the weight ratio of 2:1:1 and then sulfidized with N,N-m-phenylene bismaleimide. The addition amount of N,N-m-phenylene bismaleimide is 5% of the total amount of palm oil, the sulfidization temperature is 300 °C, and the sulfidization time is 1 h; the surfactant is sodium dodecylbenzenesulfonate; the emulsification aid is alkylphenol polyoxyethylene ether.
[0038] The preparation method of the modified silane coupling agent in this embodiment is as follows: S1: Add 4 parts of nano-alumina and 2 parts of lanthanum oxide into 8 parts of sodium dodecylbenzenesulfonate solution, and then add 3 parts of stearic acid, and stir well to obtain a modified solution; S2: Immerse nano-titanium dioxide into a sufficient amount of the modified solution and stir for modification treatment. After the stirring is completed, filter by suction and dry to obtain a nano-titanium dioxide modifier; S3: Add 3 parts of silane coupling agent and 2 parts of chitosan solution into 8 parts of ethanol solvent, then add 4 parts of nano-titanium dioxide modifier and stir well, then filter by suction and dry to obtain the modified silane coupling agent.
[0039] The mass fraction of the sodium dodecylbenzenesulfonate solution in this example is 5%; the mass fraction of the chitosan solution is 6%.
[0040] In this example, the stirring speed for the stirring modification treatment is 750 r / min, and the stirring time is 1 h.
[0041] The preparation method of the nanoparticles in this example is as follows: S11: Add 4 parts of carboxymethyl cellulose and 3 parts of nano-silica sol into 8 parts of yttrium nitrate solution, and then add 4 parts of nano-hydroxyapatite, and stir well to obtain a conditioning solution; S12: Ultrasonically treat nano-kaolin in a conditioning solution 5 times the total amount of nano-kaolin. After the ultrasonic treatment is completed, filter and dry to obtain nanoparticles.
[0042] In this example, the ultrasonic power for the ultrasonic treatment is 400 W, and the ultrasonic time is 2 h.
[0043] The mass fraction of the yttrium nitrate solution in this example is 5%.
[0044] The preparation method of the cutting fluid in this example is: Stir the surfactant, water and nanoparticles evenly to obtain a first product, then stir the base oil, emulsification aid and modified silane coupling agent evenly to obtain a second product, and continue to mix the first product and the second product evenly to obtain the cutting fluid.
[0045] Example 3. A cutting fluid for metal processing in this example includes the following raw materials in parts by weight: 32.5 parts of base oil, 20 parts of surfactant, 8 parts of modified silane coupling agent, 6.5 parts of nanoparticles, 4.5 parts of emulsification aid, and 12.5 parts of water.
[0046] The base oil in this example is palm oil, epoxy soybean oil and lard, which are winterized and liquefied according to the weight ratio of 2:1:1 and then sulfided with N,N-m-phenylene bismaleimide. The addition amount of N,N-m-phenylene bismaleimide is 5% of the total amount of palm oil, the sulfiding temperature is 300 °C, and the sulfiding time is 1 h; the surfactant is sodium dodecylbenzenesulfonate; the emulsification aid is alkylphenol polyoxyethylene ether.
[0047] The preparation method of the modified silane coupling agent in this example is: S1: Add 3 parts of nano-aluminum oxide and 1.5 parts of lanthanum oxide into 6.5 parts of sodium dodecylbenzenesulfonate solution, and then add 2.5 parts of stearic acid, and stir well to obtain a modified solution; S2: Immerse nano-titanium dioxide into a sufficient amount of the modified solution and stir for modification treatment. After the stirring is completed, filter and dry to obtain a nano-titanium dioxide modifier; S3: Add 2.5 parts of silane coupling agent and 1.5 parts of chitosan solution into 6.5 parts of ethanol solvent, then add 3 parts of nano-titanium dioxide modifier and stir well. Then, perform suction filtration and drying to obtain the modified silane coupling agent.
[0048] In this example, the mass fraction of the sodium dodecylbenzenesulfonate solution is 3.5%; the mass fraction of the chitosan solution is 5%.
[0049] In this example, the stirring speed for the stirring modification treatment is 600 r / min, and the stirring time is 1 h.
[0050] The preparation method of the nanoparticles in this example is as follows: S11: Add 3 parts of carboxymethyl cellulose and 2 parts of nano-silica sol into 6.5 parts of yttrium nitrate solution, then add 3 parts of nano-hydroxyapatite and stir well to obtain a conditioning solution; S12: Subject the nano-kaolin to ultrasonic treatment in a conditioning solution that is 4 times the total amount of the nano-kaolin. After the ultrasonic treatment ends, perform suction filtration and drying to obtain the nanoparticles.
[0051] In this example, the ultrasonic power for the ultrasonic treatment is 370 W, and the ultrasonic time is 1.5 h.
[0052] In this example, the mass fraction of the yttrium nitrate solution is 3.5%.
[0053] The preparation method of the cutting fluid in this example is: Stir the surfactant, water, and nanoparticles evenly to obtain a first product, then stir the base oil, emulsification aid, and modified silane coupling agent evenly to obtain a second product, and continue to mix the first product and the second product thoroughly to obtain the cutting fluid.
[0054] Comparative Example 1. The difference from Example 3 is that the modified silane coupling agent is not added.
[0055] Comparative Example 2. The difference from Example 3 is that the nano-titanium dioxide modifier is not added to the modified silane coupling agent.
[0056] Comparative Example 3. The difference from Example 3 is that the modification liquid is not added to the nano-titanium dioxide modifier.
[0057] Comparative Example 4. The difference from Example 3 is that nano-aluminum oxide and lanthanum oxide are not added to the modification liquid.
[0058] Comparative Example 5. The difference from Example 3 is that the nanoparticles are not added.
[0059] Comparative Example 6. The difference from Example 3 is that the conditioning solution is not added to the nanoparticles.
[0060] Comparative Example 7 It is different from Example 3 in that nano-silica sol and hydroxyapatite are not added to the tuning liquid.
[0061] The product performances of Examples 1-3 and Comparative Examples 1-7 were tested for lubricity. At the same time, the products were placed at 70 °C for 24 h, and then placed under the condition of 2% hydrochloric acid mist for 24 h to test the high-temperature resistance and acid corrosion stability. The tests are as follows:
[0062] It can be seen from Comparative Examples 1-7 and Examples 1-3 that the product of Example 3 has excellent lubricity, and at the same time, the product has remarkable effects on high-temperature resistance and acid corrosion stability; When one of the modified silane coupling agent and nanoparticles is not added in the present invention, the performance of the product deteriorates significantly. By using the synergistic combination of the two, the product performance effect is the most obvious; When nano-titanium dioxide modifier is not added to the modified silane coupling agent, the modification liquid is not added to the nano-titanium dioxide modifier, nano-aluminum oxide and lanthanum oxide are not added to the modification liquid, the tuning liquid is not added to the nanoparticles, and nano-silica sol and hydroxyapatite are not added to the tuning liquid, the lubricity performance of the product shows a downward trend to varying degrees. At the same time, due to different modification methods, the performance also shows a downward trend. Although other modification methods can improve the lubricity, they are not as effective as the modification method of the present invention. At the same time, by using the specific modified silane coupling agent and nanoparticles of the present invention, the product performance improvement effect is remarkable.
[0063] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention.
[0064] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A cutting fluid for metal processing, characterized in that, It includes the following raw materials in parts by weight: 30 - 35 parts of base oil, 15 - 25 parts of surfactant, 6 - 10 parts of modified silane coupling agent, 5 - 8 parts of nanoparticles, 3 - 6 parts of emulsification aid, and 10 - 15 parts of water.
2. The cutting fluid for metal processing according to claim 1, wherein, The cutting fluid is composed of the following raw materials in parts by weight: 32.5 parts of base oil, 20 parts of surfactant, 8 parts of modified silane coupling agent, 6.5 parts of nanoparticles, 4.5 parts of emulsification aid, and 12.5 parts of water.
3. The cutting fluid for metal processing according to claim 1, characterized in that, The base oil is a mixture of palm oil, epoxy soybean oil, and lard in a weight ratio of 2:1:
1. After winterization and liquefaction treatment, it is sulfonated with N,N - m - phenylene bismaleimide. The addition amount of N,N - m - phenylene bismaleimide is 5% of the total amount of palm oil. The sulfonation temperature is 300 °C, and the sulfonation time is 1 h. The surfactant is sodium dodecylbenzenesulfonate. The emulsification aid is alkylphenol polyoxyethylene ether.
4. The cutting fluid for metal processing according to claim 1, characterized in that, The preparation method of the modified silane coupling agent is as follows: S1: Add 2 - 4 parts of nano - alumina and 1 - 2 parts of lanthanum oxide to 5 - 8 parts of sodium dodecylbenzenesulfonate solution, and then add 2 - 3 parts of stearic acid. Stir well to obtain a modified solution. S2: Immerse nano - titanium dioxide into a sufficient amount of the modified solution and stir for modification. After stirring, filter by suction and dry to obtain a nano - titanium dioxide modifier. S3: Add 2 - 3 parts of silane coupling agent and 1 - 2 parts of chitosan solution to 5 - 8 parts of ethanol solvent, then add 2 - 4 parts of nano - titanium dioxide modifier and stir well. Then filter by suction and dry to obtain the modified silane coupling agent.
5. The cutting fluid for metal processing according to claim 4, characterized in that, The mass fraction of the sodium dodecylbenzenesulfonate solution is 2 - 5%; the mass fraction of the chitosan solution is 4 - 6%.
6. The cutting fluid for metal processing according to claim 4, wherein, The stirring speed for the stirring modification treatment is 550 - 750 r / min, and the stirring time is 1 h.
7. The cutting fluid for metal processing according to claim 1, characterized in that, The preparation method of the nanoparticles is as follows: S11: Add 2 - 4 parts of carboxymethyl cellulose and 1 - 3 parts of nano - silica sol to 5 - 8 parts of yttrium nitrate solution, and then add 2 - 4 parts of nano - hydroxyapatite. Stir well to obtain a conditioning solution. S12: Ultrasonically treat nano - kaolin in a conditioning solution that is 3 - 5 times the total amount of nano - kaolin. After ultrasonic treatment, filter by suction and dry to obtain nanoparticles.
8. The cutting fluid for metal processing according to claim 7, characterized in that, The ultrasonic power for the ultrasonic treatment is 350 - 400 W, and the ultrasonic time is 1 - 2 h.
9. The cutting fluid for metal processing according to claim 7, characterized in that, The mass fraction of the yttrium nitrate solution is 2 - 5%.
10. The cutting fluid for metal processing according to claim 1, wherein, The preparation method of the cutting fluid is as follows: Stir the surfactant, water, and nanoparticles evenly to obtain a first product. Then stir the base oil, emulsification aid, and modified silane coupling agent evenly to obtain a second product. Mix the first product and the second product evenly to obtain the cutting fluid.