CN103725387A - Linear cutting fluid for neodymium-iron-boron permanent magnet material - Google Patents
Linear cutting fluid for neodymium-iron-boron permanent magnet material Download PDFInfo
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- CN103725387A CN103725387A CN201210384690.6A CN201210384690A CN103725387A CN 103725387 A CN103725387 A CN 103725387A CN 201210384690 A CN201210384690 A CN 201210384690A CN 103725387 A CN103725387 A CN 103725387A
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Abstract
A linear cutting fluid for a neodymium-iron-boron permanent magnet material is characterized by comprising the compositions in percent by weight: 3%-9% of an aliphatic acid, 10%-15% of ethanolamine, 3%-6% of an amino boron phosphate, 5%-10% of a cleaning agent, 6%-9% of an antirust agent, 0.3%-1.0% of a hard water resistant agent, 0.3%-1.0% of an antifoaming agent and the balance water. The preparation method of the linear cutting fluid comprises: adding the aliphatic acid into a reaction kettle according to the amount of the formula, heating to 60-70 DEG C, adding ethanolamine with stirring, continuing to heat to 120-150 DEG C and reacting for 2 h, then cooling to 80 DEG C, successively adding the amino boron phosphate, the cleaning agent, the antirust agent, the antifoaming agent, the hard water resistant agent and water, and continuing to stir for 2 hours to obtain the finished product. The linear cutting fluid provided by the invention is low in cost, can realize long-acting antibiosis, belongs to environment-friendly product, is specially used in neodymium-iron-boron permanent magnet material processing technology, and has good cutting, cooling and rust resisting effects.
Description
Technical field
The present invention relates to a kind of water-base metal wire cutting liquid, particularly relate to wire cutting liquid and preparation method thereof for Nd-Fe-Bo permanent magnet material of a kind of special use.
Background technology
Nd-Fe-Bo permanent magnet material be a kind of by the rare earth metal powders such as neodymium, lanthanum, cerium, dysprosium and iron, boron powder through mixing, the alloy material that forms of compacting, calcination, there is typical powder metallurgy feature.In such material, owing to containing chemically reactive element and the micropore shape metallurgical structures such as neodymium, boron, cause Nd-Fe-B permanent magnetic permanent magnet material, than other metallic substance, corrosion more easily occurs.
For fear of producing corrosion, most domestic enterprise still adopts oil base cutting fluid or emulsion as lubricating and cooling agent in molding neodymium iron boron complete processing at present.The main component of general oil base cutting fluid is kerosene or diesel oil, and this cutting fluid lubrication and rust-preventing characteristic are good, but volatile, smell is large, in use thermolysis can occur, a large amount of oil vapours and greasy filth is contaminate environment not only, and easily presence of fire.Emulsion is between oil base cutting fluid and water-base cutting fluid, and it is lubricated, antirust, cooling is all better, but less stable, and in use easy generation breakdown of emulsion affected by environment layering causes that cutting speed is slack-off, corrosion increases the weight of, fouling etc.In emulsion, more than 80% composition is mineral oil in addition, and along with the rising of oil price is the same with oil base cutting fluid, the tooling cost of emulsion is also more and more higher, and meanwhile, regularly the waste emulsified mixture of discharge can not biological degradation, also very serious to the pollution in bad border.
Water-based metal working fluid is that the product of seeking is badly in need of in Nd-Fe-Bo permanent magnet material forming process enterprise, compare with emulsion with oil base cutting fluid, water-base cutting fluid cooling and cleaning are good, but oilness and rust-preventing characteristic are poor, conventional water-based metal working fluid cannot meet the antirust requirement of Nd-Fe-Bo permanent magnet material.
In order to solve the antirust problem of neodymium iron boron, in recent years, some domestic scientific research institutions and relevant researcher, water-based metal working fluid lubricated and antirust aspect done a large amount of work, and developed new product according to the requirement of different moulding processs, for example;
Publication number is < < lubricant > > for neodymium iron boron processing and lubrication that the Chinese invention patent application of CN 101659898 provides, and this lubricant consists of following component by weight: 2～10 parts of industrial lubricants, 0.5～4 part of Sodium Benzoate, 0.8～5 part of vegetable oil acid, 1～8 part of nitrite, 30～80 parts, water.This lubricant can replace diesel oil to apply in the trepanning complete processing of Nd-Fe-Bo permanent magnet material;
Publication number is the < < total synthesis water-base cutting fluid for sintering neodymium-iron-boron that provides of the Chinese invention patent application of CN 101191099 and preparation method thereof > >, it is characterized in that making by following weight percent raw material: monobasic or di-carboxylic acid: 2%～9%; In trolamine or diethanolamine at least one: 2%～20%; Water-soluble thiophosphatephosphorothioate salt: 0.1%～2%; Water-solubility rare-earth title complex: 0.1%～2%; Molecular weight is at least one in 200～600 polyoxyethylene glycol, polyvinyl alcohol, polypropylene glycol: 2%～20%; PH stablizer: 0.01%～0.1%; Anti-hard water agent: 0.01%～0.1%; Water: surplus.Preparation method is: A. adds desired raw material according to feed composition; B. heated and stirred refluxes, 70～150 ℃ of Heating temperatures, stirring velocity 100～1000R/MIN; C. react after 1～8 hour, be cooled to room temperature.The water-base cutting fluid of this invention preparation can be used in cutting, grinding and the macropore technique of Nd-Fe-Bo permanent magnet material, the feature of this cutting fluid is not harmful containing mineral oil, nitrite, dichlorobenzene, alkyl-substituted phenols etc. and causes the composition of environmental pollution, belongs to environmentally friendly cutting fluid;
Publication number is the cutting agent > > for < < neodymium-iron-boron magnetic material that the Chinese invention patent application of CN 1667101 provides, the weight percent of concrete component is: polyoxyethylene glycol 5-10%, DW396310-20%, mix hydramine 5-10%, tensio-active agent 5-10%, defoamer 0.1-1.0%, disodium ethylene diamine tetraacetate 0.05-0.1%, water 58.9-74.85%.It is to obtain according to the following steps: water is added in reactor, be heated to 85-95 ℃, under whipped state, add DW3963, mix hydramine, stir 30 minutes, add again polyoxyethylene glycol, tensio-active agent, defoamer and disodium ethylene diamine tetraacetate, continue to stir 1 hour.This cutting agent is by poly-methyl oxirane-2-acrylate and poly-monobutyl oxyethane-2-acrylate (being called for short DW3963), polyoxyethylene glycol, mixing hydramine, tensio-active agent, defoamer and composite the forming of anti-hard water agent.Finished product is nontoxic, tasteless, and preparation technology is easy, and alternative bavin (coal) oil is for the slice process of Nd-Fe-Bo permanent magnet material.
Nd-Fe-Bo permanent magnet material after-processing technology mainly contains section, abrasive disc, the line cutting of trepanning and specified shape, because neodymium iron boron product itself contains rare earth element and metallurgical micropore, different intermetallics easily forms galvanic cell, there is galvanic corrosion, general water-based metal working fluid is difficult to meet the antirust requirement in its complete processing, from existing above patent and technology, existing water-based metal working fluid is mainly applicable to iron, aluminium, the forming process of copper and alloy thereof, three kinds of cutting fluids more than enumerating when development mainly for be the lubricated and corrosion problem in the Nd-Fe-Bo permanent magnet material course of processing, do not consider the conductivity problems of cutting fluid, in cutting fluid, lack electrolytes electric conductivity of matter poor, the little cooling and chip removal that is unfavorable for electric machining process of discharging gap, cannot meet the requirement of Nd-Fe-Bo permanent magnet material wire cutting technology, be only applicable to the section of Nd-Fe-Bo permanent magnet material, grinding and trepanning technique.
Owing to replacing oil base cutting fluid for the contour machining procedure of Nd-Fe-Bo permanent magnet material with water-based metal working fluid, not only can stop disaster hidden-trouble, improve Working environment, reduce environmental pollution, can also save a large amount of oil products, reduce energy consumption, improve processing benefit.Therefore, researching and developing a kind of suitable Nd-Fe-Bo permanent magnet material is very important with wire cutting liquid.
Summary of the invention
The object of the invention is to solve prior art above shortcomings, a kind of Nd-Fe-Bo permanent magnet material wire cutting liquid is provided, this wire cutting liquid is containing harmful compositions such as mineral oil, nitrite, is to aim at Nd-Fe-Bo permanent magnet material line cutting processing and the product that designs.
The technical scheme providing is to achieve the object of the present invention:
This Nd-Fe-Bo permanent magnet material wire cutting liquid, is characterized in that this wire cutting liquid is formulated by following component by weight percentage:
Lipid acid: 3%～9%; Thanomin: 10%～15%;
Amido boron phosphonic acid ester: 3%～6%; Clean-out system: 5%～10%;
Rust-preventive agent: 6%～9%; Anti-hard water agent: 0.3%～1.0%;
Defoamer: 0.3%～1.0%; Water: surplus.
Wherein
Described lipid acid is at least a kind of in oleic acid, dodecenylsuccinic acid, sebacic acid or their mixture;
Described thanomin is at least a kind of in monoethanolamine, diethanolamine, trolamine or their mixture;
The N-P-B type lubricating oil additive that described amido boron phosphonic acid ester is a kind of preparation, this N-P-B type lubricating oil additive is the applicant's independent development, in first to file Chinese invention patent, application number is: 201210370454.9, and denomination of invention is: < amido boron phosphonic acid ester and preparation method thereof >.
The amido boron phosphoric acid ester of this preparation, wherein each component is calculated in molar ratio as:
Organic amine: dibutyl phosphite: formaldehyde: boronating agent=1: 2～3: 2～3: 1.
Described organic amine is quadrol or diethylenetriamine.Described boronating agent is boric acid.
The preparation method of the amido boron phosphoric acid ester of this preparation, carries out in two steps:
A. according to the mol ratio of raw material: organic amine: dibutyl phosphite: formaldehyde: boronating agent=1: 2～3: 2～3: 1, dibutyl phosphite and formaldehyde are added in reactor, then under agitation organic amine is all added drop-wise in reactor, control reactor temperature≤30 ℃, when temperature in the kettle no longer rises, continue to stir 1～2h;
B. the boronating agent of formula ratio is added in the reactor of step a, open division box, heat to 110～130 ℃ of back flow reaction 3～5h, when in water trap, the liquid level of water no longer increases, reaction finishes, and is cooled to room temperature, obtains target product.
Described clean-out system is that Pu Luonike polyethers (is called for short: polyethers) a kind of in L44, L62, polyoxyethylene nonylphenol ether or their mixture;
What described rust-preventive agent was boric acid ester, Sodium orthomolybdate and three kinds of materials of sodium phosphate by Different Weight than in the mixture forming is a kind of;
Described anti-hard water agent is at least a kind of in ethylenediamine tetraacetic acid (EDTA), hydroxyl ethylenediamine tetraacetic acid (EDTA), edetate or hydroxyl edetate;
Described defoamer is at least a kind of in silicone emulsion, random polyethers or their mixture.
The preparation method of wire cutting liquid for this Nd-Fe-Bo permanent magnet material that the present invention provides, be characterized in being realized by following steps: by the amount of composition of raw materials, lipid acid is added in reactor, be heated to 60～70 ℃, under whipped state, add thanomin, continue to be warming up to 120～150 ℃ of reaction 2h, then cool to 80 ℃ and add successively again amido boron phosphonic acid ester, clean-out system, rust-preventive agent, anti-hard water agent, defoamer and water, continue to stir 2h and be finished product.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention is a kind of Nd-Fe-Bo permanent magnet material wire cutting liquid, and this cutting liquid has been compared better oilness and rust-preventing characteristic with existing water base wire cutting liquid, compares have longer work-ing life and cutting speed in feet per minute with emulsion, and specific experiment data are as table 1.
Table 1 wire cutting liquid of the present invention and prior art performance comparison
Note: in table, " 5% solution " is that the weight percent of product and water is 1: 20; Cutting speed in feet per minute is to obtain under the identical surface smoothness condition of assurance.
As can be known from Table 1, product of the present invention has the following advantages:
1, good electroconductibility and lubricity: can effectively improve surface accuracy;
2, good cleaning, chip removal performance: can effectively improve process velocity;
3, splendid arc quenching effect, can effectively extend molybdenum filament work-ing life.
Embodiment
Embodiment 1
A kind of Nd-Fe-Bo permanent magnet material wire cutting liquid, this wire cutting liquid consists of following component by weight percentage, specific embodiments is: by oleic acid 3%, sebacic acid 3% adds in reactor, be warmed up to 60 ℃, under whipped state, add again monoethanolamine 2%, diethanolamine 4%, trolamine 6%, continue to be warming up to 150 ℃ of reaction 2h, then cool to 80 ℃ and add successively amido boron phosphonic acid ester 3%, polyoxyethylene nonylphenol ether (OP-10) 6%, boric acid ester 3%, Sodium orthomolybdate 0.5%, sodium phosphate 5%, diethylamine tetraacethyl 0.3%, silicone emulsion 0.5% and water 63.7%, continue to stir 2h and be finished product.
By weight percentage, each feed composition and dosage are in Table 2 for embodiment 2～5, and preparation method and operation steps are with embodiment 1.
Table 2 embodiment of the present invention 2～5 each feed composition and dosages
Examination and test of products method of the present invention is carried out with reference to GB6144-85, GB3142-82, JB1470-81 standard, and gained check data is in Table 3.
The wire cutting liquid the performance test results that table 3 the present invention produces
Note: in table, " 10 solution " is that the weight percent of product of the present invention and water is 1: 10.
As can be seen from Table 2, this Nd-Fe-Bo permanent magnet material wire cutting liquid that the present invention provides, there is good non-corrosibility, rust-preventing characteristic and oilness, the equal conformance with standard requirement of indices, its performance has reached the standard of domestic like product, can meet the requirement of Nd-Fe-Bo permanent magnet material wire cutting technology.
Claims (8)
1. a Nd-Fe-Bo permanent magnet material wire cutting liquid, is characterized in that by following material formulatedly, and the weight percent of its each component is:
Lipid acid: 3%～9%, thanomin: 10%～15%, amido boron phosphonic acid ester: 3%～6%,
Clean-out system: 5%～10%, rust-preventive agent: 6%～9%, anti-hard water agent: 0.3%～1.0%,
Defoamer: 0.3%～1.0%, water: surplus.
2. a kind of Nd-Fe-Bo permanent magnet material wire cutting liquid according to claim 1, is characterized in that described lipid acid is at least a kind of in oleic acid, dodecenylsuccinic acid, sebacic acid or their mixture.
3. a kind of Nd-Fe-Bo permanent magnet material wire cutting liquid according to claim 1, is characterized in that described thanomin is at least a kind of in monoethanolamine, diethanolamine, trolamine or their mixture.
4. a kind of Nd-Fe-Bo permanent magnet material wire cutting liquid according to claim 1, is characterized in that described clean-out system is that Pu Luonike polyethers (is called for short: polyethers) a kind of in L44, L62, polyoxyethylene nonylphenol ether or their mixture.
5. a kind of Nd-Fe-Bo permanent magnet material wire cutting liquid according to claim 1, what it is characterized in that described rust-preventive agent is boric acid ester, Sodium orthomolybdate and three kinds of materials of sodium phosphate by Different Weight than in the mixture forming is a kind of.
6. a kind of Nd-Fe-Bo permanent magnet material wire cutting liquid according to claim 1, is characterized in that described anti-hard water agent is at least a kind of in ethylenediamine tetraacetic acid (EDTA), hydroxyl ethylenediamine tetraacetic acid (EDTA), edetate or hydroxyl edetate.
7. a kind of Nd-Fe-Bo permanent magnet material wire cutting liquid according to claim 1, is characterized in that described defoamer is at least a kind of in silicone emulsion, random polyethers or their mixture.
8. the preparation method of wire cutting liquid for a kind of Nd-Fe-Bo permanent magnet material claimed in claim 1, it is characterized in that it prepares according to the following steps: by the amount of composition of raw materials, lipid acid is added in reactor, be heated to 60～70 ℃, under whipped state, add thanomin, continue to be warming up to 120～150 ℃, reaction 2h, then cools to 80 ℃, add successively again amido boron phosphonic acid ester, clean-out system, rust-preventive agent, anti-hard water agent, defoamer and water, continue to stir 2h and be finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210384690.6A CN103725387B (en) | 2012-10-11 | 2012-10-11 | A kind of Nd-Fe-Bo permanent magnet material wire cutting liquid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210384690.6A CN103725387B (en) | 2012-10-11 | 2012-10-11 | A kind of Nd-Fe-Bo permanent magnet material wire cutting liquid |
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| CN103725387A true CN103725387A (en) | 2014-04-16 |
| CN103725387B CN103725387B (en) | 2015-10-14 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105820866A (en) * | 2016-04-20 | 2016-08-03 | 广州科卢斯流体科技有限公司 | Medium-speed wire-cut electrical discharge machining (MS-WEDM) total-synthesis wire-cut processing fluid |
| CN111549361A (en) * | 2020-05-12 | 2020-08-18 | 江苏兰诺磁业有限公司 | Method for plating double-layer zinc on surface of neodymium iron boron permanent magnet material |
| CN112481011A (en) * | 2020-11-27 | 2021-03-12 | 三达奥克化学股份有限公司 | Multipurpose fully-synthetic cutting fluid for processing neodymium-iron-boron material and preparation method thereof |
| CN112899061A (en) * | 2021-01-26 | 2021-06-04 | 自贡硬质合金有限责任公司 | Special water-based grinding fluid for hard alloy and preparation method thereof |
| CN113337331A (en) * | 2021-05-31 | 2021-09-03 | 刘茂林 | Environment-friendly water-based wire cutting working solution and preparation method thereof |
| CN113583746A (en) * | 2020-09-23 | 2021-11-02 | 安徽恒磁磁电有限公司 | Antirust grinding fluid for bonded neodymium-iron-boron magnet and preparation method thereof |
| CN114644956A (en) * | 2022-04-29 | 2022-06-21 | 泰伦特生物工程股份有限公司 | Dy-Fe alloy wire cutting fluid and preparation method and use method thereof |
| CN116445206A (en) * | 2023-04-16 | 2023-07-18 | 广东嘉福新材料科技有限公司 | Environment-friendly water-based metal working fluid and preparation method thereof |
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Patent Citations (3)
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105820866A (en) * | 2016-04-20 | 2016-08-03 | 广州科卢斯流体科技有限公司 | Medium-speed wire-cut electrical discharge machining (MS-WEDM) total-synthesis wire-cut processing fluid |
| CN105820866B (en) * | 2016-04-20 | 2018-12-28 | 广州科卢斯流体科技有限公司 | A kind of fully synthetic linear cutter liquid of middle wire |
| CN111549361A (en) * | 2020-05-12 | 2020-08-18 | 江苏兰诺磁业有限公司 | Method for plating double-layer zinc on surface of neodymium iron boron permanent magnet material |
| CN113583746A (en) * | 2020-09-23 | 2021-11-02 | 安徽恒磁磁电有限公司 | Antirust grinding fluid for bonded neodymium-iron-boron magnet and preparation method thereof |
| CN112481011A (en) * | 2020-11-27 | 2021-03-12 | 三达奥克化学股份有限公司 | Multipurpose fully-synthetic cutting fluid for processing neodymium-iron-boron material and preparation method thereof |
| CN112899061A (en) * | 2021-01-26 | 2021-06-04 | 自贡硬质合金有限责任公司 | Special water-based grinding fluid for hard alloy and preparation method thereof |
| CN113337331A (en) * | 2021-05-31 | 2021-09-03 | 刘茂林 | Environment-friendly water-based wire cutting working solution and preparation method thereof |
| CN114644956A (en) * | 2022-04-29 | 2022-06-21 | 泰伦特生物工程股份有限公司 | Dy-Fe alloy wire cutting fluid and preparation method and use method thereof |
| CN116445206A (en) * | 2023-04-16 | 2023-07-18 | 广东嘉福新材料科技有限公司 | Environment-friendly water-based metal working fluid and preparation method thereof |
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| CN103725387B (en) | 2015-10-14 |
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