A water-based NdFeB material multi-wire cutting fluid

Abstract

The present application relates to an aqueous NdFeB material multi-wire cutting fluid, which comprises the following components in weight percentage: 10-20% of organic alcohol amine, 5-20% of aqueous polyether ester, 1-5% of boric acid, 5-10% of organic acid rust inhibitor, 5-10% of short-chain acid solubilizer, 1-5% of aqueous phosphate anti-wear agent, 0.5-2% of benzotriazole, 0.01-0.1% of defoamer, 1-3% of bactericide and the balance of deionized water; the aqueous NdFeB material multi-wire cutting fluid scheme of the present application achieves multiple beneficial effects such as reducing the use cost, improving production efficiency and reducing environmental pollution through the synergistic effect of various components, and provides an efficient, environmentally friendly and economical solution for the cutting processing of NdFeB magnets.

Description

Technical Field

[0001] The present application relates to the technical field of multi-wire cutting fluid, and in particular to an aqueous NdFeB material multi-wire cutting fluid. Background Art

[0002] Neodymium magnet, also known as NdFeB magnet, is a tetragonal crystal formed by neodymium, iron and boron (Nd2Fe14B). NdFeB magnet is the permanent magnet with magnetic properties second only to absolute zero holmium magnet, and is also the most commonly used rare earth magnet. NdFeB magnet is widely used in electronic products, such as hard disks, mobile phones, headphones and battery-powered tools.

[0003] The process flow of NdFeB permanent magnet processing is as follows: batching → smelting ingot / spinning → powder making → pressing → sintering and tempering → magnetic detection → grinding → cutting → electroplating → finished product. The cutting process was initially generally processed by an inner circle slicer, that is, the NdFeB rough material was glued to the substrate with 502 glue and put into the inner circle slicer for processing. Since 502 glue will soften when it comes into contact with water, causing loosening and falling off, the inner circle slicing process can basically only be processed using oily cutting oil. In order to improve slicing efficiency, more and more factories have begun to use multi-wire cutting machines for slicing.

[0004] Since the multi-wire cutting machine does not need to use 502 glue to specify the workpiece, it is necessary to develop a water-based cutting fluid that can reduce the cost of use, improve production efficiency, and reduce workshop environmental pollution to replace the traditional oily cutting oil. Summary of the invention

[0005] In order to solve the above-mentioned technical problems, the present application provides an aqueous NdFeB material multi-wire cutting fluid.

[0006] The above-mentioned invention objective of the present application is achieved through the following technical solutions:

[0007] A water-based NdFeB material multi-wire cutting fluid comprises the following components in percentage by weight:

[0008] 10-20% organic alcohol amine, 5-20% water-based polyether ester, 1-5% boric acid, 5-10% organic acid rust inhibitor, 5-10% short-chain acid solubilizer, 1-5% water-based phosphate antiwear agent, 0.5-2% benzotriazole, 0.01-0.1% defoamer, 1-3% bactericide and the balance deionized water.

[0009] By adopting the above technical scheme, the water-based NdFeB material multi-wire cutting fluid uses deionized water as the main solvent and is matched with an appropriate amount of organic alcohol amine, which not only reduces the raw material cost, but also provides good wettability and dispersibility, helps to evenly disperse each component in water, and at the same time enhances the lubrication performance of the cutting fluid; the addition of water-based polyether ester provides the cutting fluid with excellent lubricity and cooling performance. During the cutting process, it can effectively reduce the friction between the tool and the workpiece, reduce the cutting temperature, thereby extending the tool life, improving the cutting efficiency, and ensuring the smoothness of the workpiece surface; the addition of boric acid enhances the anti-rust performance of the cutting fluid, which can form a protective film with the metal surface to prevent the NdFeB material from being oxidized and corroded during the cutting process, protecting The quality of the workpiece, and the composite use of organic acid rust inhibitors further enhances the anti-rust effect of the cutting fluid; the addition of short-chain acid solubilizers improves the compatibility and stability of the components in the cutting fluid; the water-based phosphate anti-wear agent, as a key component, provides the cutting fluid with excellent anti-wear performance, which can form a protective film between the tool and the workpiece, reduce friction and wear, extend the tool life, and improve cutting accuracy; the addition of benzotriazole enhances the anti-corrosion performance of the cutting fluid, and at the same time, the addition of defoaming agents effectively inhibits the foam generated by the cutting fluid during use, maintains a clear view of the cutting area, and facilitates the operator to observe the cutting situation and adjust the cutting parameters in time; and the introduction of bactericides ensures the hygiene and stability of the cutting fluid. It can kill bacteria and other microorganisms in the cutting fluid, prevent the cutting fluid from deteriorating and stinking, and extend the service life of the cutting fluid; in summary, the above-mentioned water-based NdFeB material multi-wire cutting fluid solution achieves multiple beneficial effects such as reducing the use cost, improving production efficiency, and reducing environmental pollution through the synergistic effect of various components, providing an efficient, environmentally friendly and economical solution for the cutting processing of NdFeB magnets.

[0010] In a preferred example, the present application can be further configured as follows: the chemical formula of the water-based phosphate anti-wear agent is:

[0011] RO(CH2CH(OH)CH2O) m (CH2CH2O) n PO3H2;

[0012] Wherein R is a group containing aromatic hydrocarbons; m is the addition number of polypropylene glycol groups, selected from integers of 3 to 8; and n is the addition number of polyethylene glycol groups, selected from integers of 2 to 5.

[0013] By adopting the above technical scheme, the above-mentioned water-based phosphate anti-wear agent not only has excellent anti-wear performance, can significantly reduce the wear of mechanical equipment and extend the service life, but also has good water solubility, so that the water-based phosphate anti-wear agent can be evenly dispersed in the aqueous system, thereby providing more comprehensive lubrication protection; at the same time, the addition number m of the polypropylene glycol group is selected from an integer of 3 to 8, and the addition number n of the polyethylene glycol group is selected from an integer of 2 to 5, so that the anti-wear agent has good water solubility and can ensure the formation of a stable lubricating film on the metal surface, thereby achieving a strong adsorption force between the anti-wear agent and the metal surface and ensuring the durability of the lubrication effect.

[0014] In a preferred example, the present application can be further configured as follows: the chemical formula of the water-based phosphate anti-wear agent is:

[0015] RO(CH2CH(OH)CH2O)5(CH2CH2O)3PO3H2;

[0016] Wherein R is ethyl 4-(4'-sulfonylphenyl)benzoate.

[0017] By adopting the above technical solution, the introduction of 4-(4'-sulfonylphenyl)ethyl benzoate group significantly enhances the affinity of the anti-wear agent to the metal surface: the presence of sulfonic acid group and ethyl benzoate group enables the anti-wear agent molecules to be more tightly adsorbed on the metal surface to form a solid lubricating film, and this lubricating film can effectively reduce the direct contact between metals, thereby reducing wear and friction and extending the service life of mechanical equipment; at the same time, the addition number of polypropylene glycol groups in the water-based phosphate anti-wear agent is 5, and the addition number of polyethylene glycol groups is 3, which makes the anti-wear agent have excellent water solubility in the water-based system, which means The anti-wear agent can be more easily dissolved in water and can be more evenly distributed in the parts that need lubrication during use, providing comprehensive protection; in addition, the chemical structure of the water-based phosphate anti-wear agent also gives it good chemical stability. Even under harsh conditions such as high temperature and high pressure, the anti-wear agent molecules can maintain structural integrity and continue to play a lubricating role, making the anti-wear agent suitable for various complex and harsh working environments; in summary, the water-based phosphate anti-wear agent described in the present application achieves excellent anti-wear performance, excellent water solubility and outstanding chemical stability through its specific chemical structure and composition.

[0018] In a preferred example, the present application can be further configured as follows: the organic alcohol amine is selected from one or more of triethanolamine and isopropanolamine.

[0019] By adopting the above technical solution, the introduction of triethanolamine and isopropanolamine not only enhances the solubility and dispersibility of the anti-wear agent in the aqueous environment, allowing the anti-wear agent to blend with water more quickly and be evenly coated on the metal surface that needs to be protected; at the same time, triethanolamine and isopropanolamine can also work synergistically with other ingredients in the anti-wear agent to form a tougher and more durable lubricating film, effectively reducing friction and wear during mechanical operation.

[0020] In a preferred example, the present application can be further configured as follows: the organic acid rust inhibitor is selected from one or more of tall oil acid rust inhibitor, dodecanoic acid rust inhibitor, dimer acid rust inhibitor, sebacic acid rust inhibitor, neodecanoic acid rust inhibitor, octanoic acid rust inhibitor and isooctanoic acid rust inhibitor.

[0021] By adopting the above technical solution, the introduction of the above organic acid rust inhibitor significantly improves the anti-rust ability of the water-based phosphate anti-wear agent, which can form a stable chemical bond with the metal surface, thereby preventing the contact of oxygen and moisture and reducing the possibility of metal oxidation; in addition, the organic acid rust inhibitor can also form a dense protective film on the metal surface, further isolating harmful substances from the outside world and ensuring the long-term stability of the metal.

[0022] In a preferred example, the present application can be further configured as follows: the short-chain acid solubilizer is selected from one or more of isononanoic acid, valeric acid, isovaleric acid, diundecanoic acid and caproic acid.

[0023] By adopting the above technical solution, the introduction of the above short-chain acid solubilizer significantly improves the water solubility of the anti-wear agent. At the same time, the short-chain acid solubilizer can effectively reduce the surface tension of the anti-wear agent and enhance its penetration ability, so that it can penetrate deeper into the microstructure of the metal surface to form a denser lubricating film. In addition, these short-chain acid solubilizers also have good chemical stability and compatibility, and can synergize with other ingredients in the water-based phosphate anti-wear agent to jointly improve the overall lubrication effect.

[0024] In a preferred example, the present application can be further configured as follows: the organic acid rust inhibitor is selected from tall oil acid rust inhibitor, the short-chain acid solubilizer is selected from isononanoic acid, and the weight ratio of the tall oil acid rust inhibitor to the isononanoic acid is tall oil acid rust inhibitor: isononanoic acid = 1:1.

[0025] By adopting the above technical solution, the organic acid rust inhibitor is specifically selected as tall oil acid rust inhibitor, and the short-chain acid solubilizer is selected as isononanoic acid, and the weight ratio between the two is precisely controlled to be 1:1; through this specific ratio combination, the tall oil acid rust inhibitor and isononanoic acid can play an excellent synergistic role: the tall oil acid rust inhibitor effectively protects the metal surface from rust with its excellent rust prevention performance, and isononanoic acid, as a solubilizer, significantly improves the water solubility and penetration ability of the anti-wear agent, ensuring that the anti-wear agent can be evenly dispersed and deeply penetrated into the metal microstructure; through this weight ratio configuration, not only the lubrication and rust prevention effects of the anti-wear agent are optimized, but also its stability and durability are guaranteed, so that the two components can be fully mixed and interact with each other to form a more uniform and dense lubrication protective film, thereby providing more comprehensive and efficient lubrication and rust prevention protection for mechanical equipment.

[0026] In a preferred example, the present application can be further configured as follows: the defoaming agent includes one or more of polyethers, silicones and polyether esters.

[0027] By adopting the above technical scheme, the addition of the above defoaming agent can effectively prevent and eliminate the foam generated during the preparation and use of the anti-wear agent: the polyether defoaming agent ensures the smooth progress of the preparation process with its excellent anti-foaming and defoaming properties; the silicone defoaming agent helps to quickly eliminate the existing foam due to its efficient foam breaking ability; and the polyether ester defoaming agent combines the characteristics of polyether and silicone to provide a lasting defoaming effect; these defoaming agents not only improve production efficiency, but also ensure the quality and performance of the anti-wear agent. Their presence makes the anti-wear agent more uniform and reduces product defects caused by foam; at the same time, these defoaming agents also have lower surface tension, which helps the anti-wear agent to better penetrate into the metal surface and improve the lubrication effect.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. The water-based NdFeB material multi-wire cutting fluid solution of this application achieves multiple beneficial effects such as reducing use costs, improving production efficiency, and reducing environmental pollution through the synergistic effect of various components, providing an efficient, environmentally friendly and economical solution for the cutting of NdFeB magnets;

[0030] 2. The introduction of 4-(4'-sulfonylphenyl)ethyl benzoate significantly enhances the affinity of the anti-wear agent to the metal surface: the presence of the sulfonic acid group and the ethyl benzoate group enables the anti-wear agent molecules to be more tightly adsorbed on the metal surface, forming a solid lubricating film, which can effectively reduce the direct contact between metals, thereby reducing wear and friction and extending the service life of mechanical equipment; at the same time, the addition number of the polypropylene glycol group in the water-based phosphate anti-wear agent is 5, and the addition number of the polyethylene glycol group is 3, which makes the anti-wear agent have excellent water solubility in the water-based system, which means that the anti-wear agent can be more easily dissolved in water and can be more evenly distributed in the parts that need lubrication during use, providing comprehensive protection;

[0031] 3. The organic acid rust inhibitor specifically uses tall oil acid rust inhibitor, while the short-chain acid solubilizer uses isononanoic acid, and the weight ratio between the two is precisely controlled to be 1:1; through this specific ratio of combination, the tall oil acid rust inhibitor and isononanoic acid can play an excellent synergistic role: the tall oil acid rust inhibitor effectively protects the metal surface from rust with its excellent rust prevention performance, while isononanoic acid, as a solubilizer, significantly improves the water solubility and penetration ability of the anti-wear agent, ensuring that the anti-wear agent can be evenly dispersed and deeply penetrated into the metal microstructure; through this weight ratio configuration, not only the lubrication and rust prevention effects of the anti-wear agent are optimized, but also its stability and durability are guaranteed, so that the two components can be fully mixed and interact with each other to form a more uniform and dense lubrication protective film, thereby providing more comprehensive and efficient lubrication and rust prevention protection for mechanical equipment. DETAILED DESCRIPTION

[0032] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0033] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof. It should be understood that the scope of protection of the present invention is not limited to the specific embodiments described below; it should also be understood that the terms used in the embodiments of the present invention are intended to describe specific embodiments, rather than to limit the scope of protection of the present invention.

[0034] As mentioned earlier, since the multi-wire cutting machine does not need to use 502 glue to specify the workpiece, it is necessary to develop a water-based cutting fluid that can reduce the cost of use, improve production efficiency, and reduce workshop environmental pollution to replace the traditional oily cutting oil.

[0035] The present invention provides an aqueous NdFeB material multi-wire cutting fluid, which achieves multiple beneficial effects such as reducing use costs, improving production efficiency, and reducing environmental pollution.

[0036] The present application discloses an aqueous NdFeB material multi-wire cutting fluid, comprising the following components in weight percentage: 10-20% of organic alcohol amine, 5-20% of aqueous polyether ester, 1-5% of boric acid, 5-10% of organic acid rust inhibitor, 5-10% of short-chain acid solubilizer, 1-5% of aqueous phosphate anti-wear agent, 0.5-2% of benzotriazole, 0.01-0.1% of defoamer, 1-3% of bactericide and the balance of deionized water.

[0037] Preferably, the chemical formula of the water-based phosphate antiwear agent is:

[0038] RO(CH2CH(OH)CH2O) m (CH2CH2O) n PO3H2;

[0039] Wherein R is a group containing aromatic hydrocarbons; m is the addition number of polypropylene glycol groups, selected from integers of 3 to 8; and n is the addition number of polyethylene glycol groups, selected from integers of 2 to 5.

[0040] Preferably, the chemical formula of the water-based phosphate antiwear agent is:

[0041] RO(CH2CH(OH)CH2O)5(CH2CH2O)3PO3H2;

[0042] Wherein R is ethyl 4-(4'-sulfonylphenyl)benzoate.

[0043] Preferably, the organic alcohol amine is selected from one or more of triethanolamine and isopropanolamine.

[0044] Preferably, the organic acid rust inhibitor is selected from one or more of tall oil acid rust inhibitor, dodecanoic acid rust inhibitor, dimer acid rust inhibitor, sebacic acid rust inhibitor, neodecanoic acid rust inhibitor, octanoic acid rust inhibitor and isooctanoic acid rust inhibitor.

[0045] Preferably, the short-chain acid solubilizer is selected from one or more of isononanoic acid, valeric acid, isovaleric acid, diundecanoic acid and caproic acid.

[0046] Preferably, the organic acid rust inhibitor is selected from tall oil acid rust inhibitor, the short-chain acid solubilizer is selected from isononanoic acid, and the weight ratio of the tall oil acid rust inhibitor to the isononanoic acid is tall oil acid rust inhibitor: isononanoic acid = 1:1.

[0047] Preferably, the defoaming agent includes one or more of polyethers, silicones and polyether esters.

[0048] The present invention is further explained by the following examples, but they are not intended to limit the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0049] Embodiment 1:

[0050] A water-based NdFeB material multi-wire cutting fluid comprises the following components in percentage by weight:

[0051] 10 parts of triethanolamine;

[0052] 15 parts of water-based polyether ester EW14 (Yisa Chemical);

[0053] 1 part of boric acid;

[0054] 5 parts of sebacic acid rust inhibitor;

[0055] 5 parts of isononanoic acid solubilizer;

[0056] 1 part of water-based phosphate ester, wherein the chemical formula of the water-based phosphate ester is:

[0057] RO(CH2CH(OH)CH2O)5(CH2CH2O)3PO3H2, R is ethyl 4-(4'-sulfonylphenyl)benzoate;

[0058] 0.5 part of benzotriazole;

[0059] Defoaming agent MS575 (Mengqingxin) 0.1 part;

[0060] 1 part of fungicide MBM (bimorphomethane);

[0061] 61.4 parts of deionized water;

[0062] The above components are added into deionized water in proportion, and stirred to mix evenly to obtain water-based NdFeB material multi-wire cutting fluid sample 1.

[0063] Embodiment 2:

[0064] A water-based NdFeB material multi-wire cutting fluid comprises the following components in percentage by weight:

[0065] 18 parts of isopropanolamine;

[0066] 12 parts of water-based polyether ester 438 (Dow Chemical);

[0067] 3 parts of boric acid;

[0068] 7 parts of tall oil acid rust inhibitor;

[0069] 7 parts of isononanoic acid solubilizer;

[0070] 1 part of water-based phosphate ester, wherein the chemical formula of the water-based phosphate ester is:

[0071] RO(CH2CH(OH)CH2O)5(CH2CH2O)3PO3H2, R is ethyl 4-(4'-sulfonylphenyl)benzoate;

[0072] 1 part of benzotriazole;

[0073] Defoaming agent MS575 (Mengqingxin) 0.05 parts;

[0074] 1 part of fungicide MBM (bimorphomethane);

[0075] 49.95 parts of deionized water;

[0076] The above components are added into deionized water in proportion, and stirred to mix evenly to obtain water-based NdFeB material multi-wire cutting fluid sample 2.

[0077] Embodiment 3:

[0078] A water-based NdFeB material multi-wire cutting fluid comprises the following components in percentage by weight:

[0079] 15 parts of isopropanolamine;

[0080] 10 parts of water-based polyether ester 438 (Dow Chemical);

[0081] 3 parts of boric acid;

[0082] 10 parts of neodecanoic acid rust inhibitor;

[0083] 10 parts of isononanoic acid solubilizer;

[0084] 3 parts of water-based phosphate ester, wherein the chemical formula of the water-based phosphate ester is:

[0085] RO(CH2CH(OH)CH2O)5(CH2CH2O)3PO3H2, R is ethyl 4-(4'-sulfonylphenyl)benzoate;

[0086] 1 part of benzotriazole;

[0087] Defoamer 1247 (Dow Chemical) 0.05 parts;

[0088] 2 parts of fungicide MBM (bimorphomethane);

[0089] 45.95 parts of deionized water;

[0090] The above components were added into deionized water in proportion, and stirred to mix evenly, thereby obtaining water-based NdFeB material multi-wire cutting fluid sample 3.

[0091] Comparative Example 1

[0092] The difference between Comparative Example 1 and Example 2 is that the tall oil acid rust inhibitor is replaced with sebacic acid rust inhibitor, and the rest remains unchanged;

[0093] Add each component into deionized water in proportion, stir and mix evenly, and obtain water-based NdFeB material multi-wire cutting fluid sample 4.

[0094] Comparative Example 2

[0095] Comparative Example 2 includes the following components in weight percentage:

[0096] 18 parts of isopropanolamine;

[0097] The difference between Comparative Example 2 and Example 2 is that the aqueous phosphate ester is LP700 (Solvay), and the rest remains unchanged;

[0098] Add various components into deionized water in proportion, stir and mix evenly, and obtain water-based NdFeB material multi-wire cutting fluid sample 5.

[0099] Comparative Example 3

[0100] Comparative Example 3 is a commercially available NdFeB material aqueous cutting fluid, which is used as Sample 6.

[0101] Table 1 shows the performance test results of samples 1-6 in Examples 1-3 and Comparative Examples 1-3.

[0102] Table 1

[0103]

[0104] As can be seen from Table 1, sample 2 is prepared from the optimal embodiment. From the perspective of the PB value of the four-ball lubrication test, samples 1-3 are significantly better than samples 4-5, and samples 4-5 are also better than the commercially available NdFeB aqueous cutting fluids, indicating that the performance of the cutting fluid can be significantly improved by precisely controlling and optimizing the key components in the cutting fluid, such as organic alcohol amines, aqueous polyether esters, rust inhibitors, solubilizers, and aqueous phosphate esters. In particular, by using a specific ratio of rust inhibitors to solubilizers and the type of aqueous phosphate ester, a higher PB value, i.e., better wear resistance, can be achieved, thereby meeting the high requirements for lubrication and cooling during the multi-wire cutting of NdFeB materials. At the same time, compared with the commercially available aqueous cutting fluid sample 6, the cutting fluid prepared from samples 1-5 also shows superiority in terms of slag settling time, which means that the cutting fluid has better stability and cleanliness, and can further improve processing efficiency and product quality.

[0105] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0106] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A water-based NdFeB material multi-wire cutting fluid, characterized by: The composition comprises the following weight percentages: 10-20% organic alcohol amine, 5-20% water-based polyether ester, 1-5% boric acid, 5-10% organic acid rust inhibitor, 5-10% short-chain acid solubilizer, 1-5% water-based phosphate antiwear agent, 0.5-2% benzotriazole, 0.01-0.1% defoamer, 1-3% bactericide and the balance deionized water.

2. The aqueous NdFeB material multi-wire cutting fluid according to claim 1, characterized in that: The chemical formula of the water-based phosphate antiwear agent is: RO(CH2CH(OH)CH2O) m (CH2CH2O) n PO3H2; Wherein R is a group containing aromatic hydrocarbons; m is the addition number of polypropylene glycol groups, selected from integers of 3 to 8; and n is the addition number of polyethylene glycol groups, selected from integers of 2 to 5.

3. The aqueous NdFeB material multi-wire cutting fluid according to claim 2, characterized in that: The chemical formula of the water-based phosphate antiwear agent is: RO(CH2CH(OH)CH2O)5(CH2CH2O)3PO3H2; Wherein R is ethyl 4-(4'-sulfonylphenyl)benzoate.

4. The aqueous NdFeB material multi-wire cutting fluid according to claim 1, characterized in that: The organic alcohol amine is selected from one or more of triethanolamine and isopropanolamine.

5. The aqueous NdFeB material multi-wire cutting fluid according to claim 1, characterized in that: The organic acid rust inhibitor is selected from one or more of tall oil acid rust inhibitor, dodecanoic acid rust inhibitor, dimer acid rust inhibitor, sebacic acid rust inhibitor, neodecanoic acid rust inhibitor, octanoic acid rust inhibitor and isooctanoic acid rust inhibitor.

6. The aqueous NdFeB material multi-wire cutting fluid according to claim 5, characterized in that: The short-chain acid solubilizing agent is selected from one or more of isononanoic acid, valeric acid, isovaleric acid, diundecanoic acid and caproic acid.

7. The aqueous NdFeB material multi-wire cutting fluid according to claim 6, characterized in that: The organic acid rust inhibitor is selected from tall oil acid rust inhibitor, the short-chain acid solubilizer is selected from isononanoic acid, and the weight ratio of the tall oil acid rust inhibitor to the isononanoic acid is tall oil acid rust inhibitor: isononanoic acid = 1:

1.

8. A water-based NdFeB multi-wire cutting fluid according to any one of claims 1 to 7, characterized in that: The defoaming agent includes one or more of polyether, silicone and polyether ester.

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