CN100362088C - Gear cutting oil - Google Patents
Gear cutting oil Download PDFInfo
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- CN100362088C CN100362088C CNB2005100783587A CN200510078358A CN100362088C CN 100362088 C CN100362088 C CN 100362088C CN B2005100783587 A CNB2005100783587 A CN B2005100783587A CN 200510078358 A CN200510078358 A CN 200510078358A CN 100362088 C CN100362088 C CN 100362088C
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Abstract
Metalworking fluids contain active sulfur, a certain kind of inactive sulfur called ''available sulfur'', and fat in a base oil of a lubricating viscosity. The metalworking fluids are chlorine free and phosphorous free. Boundary lubrication is provided by the fat, while extreme pressure lubrication is provided by the sulfur. Available sulfur is inactive sulfur minus any contribution of inactive sulfur from sulfurized saturated fats. Active sulfur and available sulfur are present in balanced proportions, while fat is present at an amount effective to provide boundary lubrication. Use of the fluids reduces tool wear over a long period of action and over a variety of boundary and extreme pressure conditions.
Description
Technical field
The present invention relates to a kind of lubricating oil composition that in the metal process operation, reduces tool wear, specifically, the present invention relates to a kind of no chlorine extreme boundary lubrication oil compositions.
Background technology
Metal processing comprises a lot of operations, and the cutter contact workpiece also changes the profile or the shape of workpiece by the motion of cutter in these operations.In operation, add a kind of metal working lubricant in the zone of action of cutter and workpiece.Metal working fluid has three kinds of main functions: the heat that friction contact produced between cutter and the workpiece is removed; Reduce the friction when contacting between cutter and the workpiece; Prevention causes the welding of cutter and workpiece because of the high temperature and high pressure at point of contact place.
Metal working fluid is to be formed by the various additive compounds of above-mentioned advantage of can realizing, according to the temperature and pressure of contact position between cutter and the workpiece, the metal process operation is to move under the admixture of so-called final condition, the above-mentioned two kinds of conditions of extreme pressure conditioned disjunction.State when the temperature that final condition abutment district is produced is not enough to brazed shank tool and workpiece.Boundary lubricant is fat or soap normally, cutter is separated with workpiece and reduces its frictional coefficient.When contacting the rising of temperature and/or pressure above border additive available point, for example when tool speed height or increase cutting load, so-called extreme-pressure additive is used.Under the high temperature of zone of action, the reaction of extreme-pressure additive and cutter and workpiece surface forms a skim in the metallic surface, prevents new surface breakdown or welds together.Known obtainable extreme-pressure additive is based on sulphur, chlorine or phosphorus and metallic surface reaction.Can use the extreme-pressure additive mixture.
In order to prolong the work-ing life of cutter, increase the surface light face quality of workpiece, can be re-dubbed various metal working fluids with boundary lubricant and the extreme-pressure additive that contains sulphur, chlorine or phosphorus.Industrial always the searching in multiple metal processing occasion has the metal working lubricant that improves character.For complex operations, for example gear cutting is owing to produce high temperature and pressure between cutter and the workpiece in the gear cutting operating process, especially big to the needs of the lubricating oil that improves.
Summary of the invention
Metal working fluid contains active sulphur, inertia sulphur and fat in having the base oil of lubricant viscosity, the not chloride and phosphorus of metal working fluid.Boundary lubrication is provided by fat, and extreme boundary lubrication is provided by sulphur.Active sulphur, inertia sulphur and fat are measured by traditional standard method.In above-mentioned three kinds of compositions, two kinds of component content height, the third content is low.To achieve the object of the present invention, the inertia sulphur that active sulphur that content is high or content are high is defined as more than or equal to 0.85 weight %, and low active sulphur of content or the low inertia sulphur of content are defined as and are lower than 0.85 weight %, the fat that content is high is defined as 6.5 weight % or higher, and the low fat of content is lower than 6.5 weight %.
In one embodiment, the product that has been found that A * B * C in experimental design procedure is influential to observable 50% variant in the system, wherein A is the weight percentage of inertia sulphur, and B is that the weight percentage and the C of active sulphur is the weight percentage of fat.The product of preferred A * B * C is greater than 0.9 and be lower than 22.5.
According to the detailed Description Of The Invention that is hereinafter provided, further application scenario of the present invention will be conspicuous.Should be understood that,, only be to set forth, rather than limit the scope of the invention though in detailed Description Of The Invention and specific embodiment, set forth the preferred embodiments of the invention.
Embodiment
Active sulphur in the invention and inertia sulphur weight percentage are measured by standard method ASTM D-1552.Equally, the fat weight percentage composition among the present invention is measured by standard test methods ASTM D-94.The desired value of the active sulphur that metal working fluid contains, inertia sulphur and fat, composite the forming of technology that can utilize this area to be familiar with by multiple commercially available additive.Illustrate, additive is exactly a certain amount of active sulphur of conveying that everybody is familiar with, inertia sulphur and/or fat.These additives can be re-dubbed in all proportions has following active sulphur, the Metalworking fluid compositions of inertia sulphur and fatty consistency.
In one embodiment, the invention provides a kind of Metalworking lubricating oil composition, contain lubricating base oil, fat, inertia sulphur and active sulphur.This lubricating oil composition contains the chlorine less than 20ppm, preferably less than the chlorine of 10ppm.In a lot of embodiments, lubricant compositions is not chloride.In addition, said composition contains the phosphorus less than 200ppm, preferably less than 100ppm, preferably less than 50ppm, preferably less than 20ppm, is more preferably less than 10ppm.In a lot of embodiments, lubricant compositions is not phosphorous.The weight percentage of inertia sulphur in composition is A%, and the weight percentage of active sulphur in composition is B%, and the weight percentage of fat in composition is C%, and wherein preferred A, B and C are non-vanishing.As hereinafter defining, two values are big among A, B and the C, and the third party's value is little.As mentioned above, described little value is preferably greater than zero.
In a lot of embodiments, A is less than 0.85 weight % when low, and A Gao Shiwei is more than or equal to 0.85 weight %; B is less than 0.85 weight % when low, and B Gao Shiwei is greater than 0.85 weight %; C is less than 6.5 weight % when low, and C Gao Shiwei is more than or equal to 6.5 weight %.
In a lot of preferred embodiments, the low and B of A be less than 0.6 weight % when low, and A height and B Gao Shiwei are greater than 1.0 weight %; C is less than 5 weight % when low, and C Gao Shiwei is greater than 8 weight %.Alternative, for being less than or equal to 0.4 weight %, A height and B Gao Shiwei were more than or equal to 1.2 weight % when the low and B of A was low; For being less than or equal to 4 weight %, C Gao Shiwei was more than or equal to 9 weight % when C was low.
A preferred aspect of the present invention is the long-pending greater than 0.9 and less than 22.5 of A * B * C.In a lot of preferred embodiments, product is more than or equal to 2, more than or equal to 2.5, more than or equal to 2.7, perhaps more than or equal to 3.In a lot of embodiments, product is less than or equal to 15, is less than or equal to 10, is less than or equal to 7, perhaps is less than or equal to 6.75.
In a lot of embodiments, A * B * C's is long-pending more than or equal to 2, and is less than or equal to 15; Be preferably greater than or equal 2.5, and be less than or equal to 10; Be preferably greater than or equal 2.7, and be less than or equal to 7; Be preferably greater than or equal 3, and be less than or equal to 6.75.
In above-mentioned arbitrary embodiment, the preferred 0.1 weight %-3 weight % of inertia sulphur; The preferred 0.1 weight %-3 weight % of active sulphur; The preferred 2 weight %-20 weight % of fat.The product of total sulfur content (A+B) * lipid content (C) is preferably greater than 5.1, and less than 30, more preferably greater than or equal 9, and be less than or equal to 17.
On the one hand, the present invention has provided three kinds of Metalworking lubricating oil compositions, measures it with above-mentioned ASTM method and contains active sulphur, inertia sulphur and fat.In these three kinds of lubricating oil compositions, active sulphur, both the content height in inertia sulphur and the fat, third party's content is low.
In the embodiment, corresponding to high-load active sulphur, the inertia sulphur of low levels and high-load fat, lubricating oil composition contains: the active sulphur of 0.85 weight %-2 weight %, less than the inertia sulphur of 0.5 weight % and the fat of 6 weight %-20 weight %.In a preferred embodiment, active sulphur is 1 weight %-2 weight %, and inertia sulphur is to be about 8 weight %-20 weight % less than 0.3 weight % and fat.In an exemplary embodiment, lubricating oil composition comprises the active sulphur of about 1.5 weight %, the inertia sulphur of about 0.2 weight % and the fat of about 10 weight %.
In another embodiment, corresponding to high-load active sulphur, the fat of high-load inertia sulphur and low levels, metal processing compositions contain the active sulphur of 0.85 weight %-2 weight %, 0.85 the inertia sulphur of weight %-2 weight % and be lower than the fat of 6 weight %.In a preferred embodiment, composition comprises the active sulphur of the about 2 weight % of about 1 weight %-, the natural instincts sulphur of the about 2 weight % of about 1 weight %-and less than the fat of 4 weight %.In an exemplary, composition comprises the active sulphur of about 1.5 weight %, the inertia sulphur of about 1.5 weight % and the fat of about 3 weight %.
In the 3rd embodiment, corresponding to the low levels active sulphur, high-content inertia sulphur and high-content fat, Metalworking lubricating oil composition of the present invention comprises: less than the active sulphur of 0.5 weight %, 0.85 the inertia sulphur of weight %-2 weight %, the fat of 6 weight %-20 weight %.In a preferred embodiment, composition comprises the active sulphur less than 0.4 weight %, the fat of the inertia sulphur of 1 weight %-2 weight % and 8 weight %-20 weight %.In an exemplary, composition comprises about 0.2 weight % active sulphur, the inertia sulphur of about 1.5 weight % and the fat of about 10 weight %.
The present invention also provides a kind of method that is used for reducing at process of metal working the tool wear that contacts with workpiece, this method is included in and utilizes lubricating oil composition in the process of metal working, the interface or the zone of action of the lubricated cutter/workpiece of for example above-mentioned those lubricating oil compositions.
In a lot of embodiments, these compositions are used as the gear cutting lubricant.The invention provides a kind of method that reduces tool wear in the gear cutting operation, this operation comprises makes metal cutting tool contact with metal works.The zone of action that the method that reduces wear is included between cutter and the workpiece uses lubricating oil composition and excises metal by the cutting of cutter from workpiece.This method is included in the zone of action and uses for example above-mentioned lubricant compositions of lubricating oil composition.
Now known and can buy multiple metal working lubricant additive, it provides the mixture of active sulphur, inertia sulphur, fat or these components.In a typical embodiment, this fluid comprises fat or sulfurized fatty, also comprises other sulfur-bearing extreme-pressure additive simultaneously.
Employed fat comprises the triglyceride that obtains in the liquid composition from animals and plants.Such triglyceride can have various unsaturated levels.Sulphur content if desired or active sulphur content are low relatively, preferably the HI SA highly saturated triglyceride that obtains from animal oil (for example lard).On the other hand, the triglyceride that obtains from vegetables oil has tended to higher levels of degree of unsaturation.Such fat is used to allocate the relative high lubricating oil composition of sulphur content with triglyceride.This is because can use sulfurized fatty, and the triglyceride of the higher degree of unsaturation of obtaining from vegetables oil can mix more high-load sulphur than the triglyceride of the more high saturation that obtains from animal oil.The example that obtains triglyceride and fat from plant comprises raisin seed oil, Viscotrol C, soybean oil, Rice pollard oil, or the like, but be not limited to above-mentioned example.Except triglyceride, lipid acid and ester thereof all can be used.The unrestriced example of lipid acid and fatty ester comprises oleic acid, rice bran fats acid and their alkyl ester (for example ethyl ester and monooctyl ester).Triglyceride, fat and ester can cure or not cure.
A lot of sulfur-bearing extreme-pressure additives all are known and can be commercial.The sulfur-bearing extreme-pressure additive comprises that vulcanized oil and sulfurized fat are anti-, sulfide aliphatic acid, sulfuration ester, olefine sulfide, dialkyl polysulfide, thiocarbamate, sulfo-terpene and dialkyl group thiodipropionic acid salt or the like, but is not limited to above-mentioned example.Vulcanized oil and sulfurized fatty can be made by sulphur or sulfocompound and oil ﹠ fat (for example: lard, whale oil, vegetables oil, fish oil etc.) reaction, and their sulphur content is not particularly limited.But usually preferred sulphur content is the material of 5 weight %-30 weight %, and concrete example comprises sulfuration lard, sulfuration rapeseed oil, sulfurized castor oil, sulfurized soybean oil and sulfuration Rice pollard oil.The example of sulfide aliphatic acid comprises sulfuration oleic acid; The example of sulfuration ester comprises sulfuration Witconol 2301 and the misery ester of sulfuration rice bran fats.
Olefine sulfide comprises, for example the following compound of general formula
R
1-S
x-R
2 (I)
R wherein
1Represent the thiazolinyl of carbonatoms 2-15; R
2Represent the alkyl or alkenyl of carbonatoms 2-15; X represents the integer of 1-8.
Above-claimed cpd is by the alkene of carbonatoms 2-15, and perhaps its two to the tetramer, with vulcanizing agent for example reaction such as sulphur, sulfur subchloride make, the unrestriced example of alkene comprises propylene, iso-butylene and diisobutylene.
The dialkyl polysulfide is the compound with following general formula
R
3-S
y-R
4 (II)
R wherein
3And R
4Represent the alkyl or cycloalkyl of carbonatoms 1-20 respectively, the aryl of carbonatoms 6-20, the alkylaryl of carbonatoms 7-20, or the arylalkyl of carbonatoms 7-20, and R
3And R
4Can be identical or different; Y represents the integer of 2-8.
R
3And R
4For formula (II) compound of alkyl is called alkyl sulfur compounds.
R in the formula (II)
3And R
4Unrestriced example comprise methyl, ethyl, n-propyl, sec.-propyl, normal-butyl, isobutyl-, sec-butyl, the tertiary butyl, various types of amyl group, various types of hexyl, various types of heptyl, various types of octyl group, various types of nonyl, various types of decyl, various types of dodecyl, cyclohexyl, ring octyl group, phenyl, naphthyl, tolyl, xylyl, benzyl and styroyl.
The unrestriced example of dialkyl polysulfide comprises dibenzyl polysulfide, two uncle's nonyl polysulfides, two dodecyl polysulfide, di-t-butyl polysulfide, dioctyl polysulfide, phenylbenzene polysulfide and dicyclohexyl polysulfide.
Thiocarbamate comprises, for example thiocarbamate zinc.The sulfo-terpene comprises, for example the reaction product of thiophosphoric anhydride and firpene.The dialkyl group thiodipropionate comprises, for example dilauryl thiodipropionate and two octadecyl thiodipropionates.
The base oil that metal working fluid of the present invention or cutting fluid are used is the oil that lubricant viscosity is arranged.The kinematic viscosity of suitable base oil is the about 500cSt of about 1-under 40 ℃ of conditions, preferably in the 2-250cSt scope, and preferred 5-250cSt, preferred 8-200cSt scope, most preferably 10-185cSt.This lubricating oil composition has the viscosity of same range as.
Lubricant base can obtain from natural lubricating oil, ucon oil or the mixture of the two.Proper lubrication oil base oil comprise synthetic wax and slack wax isomerization and base oil, also comprise the hydrocracking base oil that makes by aromatoising substance in hydrocracking (rather than solvent extraction) crude oil and polar material.
Natural lubricating oil comprises, petroleum oil, mineral oil and the oil that from coal or shale, obtains, and it gets by traditional technology is refining, and traditional technology comprises rectifying, solvent extraction, dewaxing and hydrofining.
Synthetic oil comprises hydrocarbon ils and halo hydrocarbon ils, for example: the alkene of polymerization and copolymerization, alkylbenzene, polyphenyl, alkylation phenyl ether, alkylation diphenyl sulfide and their derivative, analogue and homologue etc.Ucon oil also comprises oxidized olefin polymer, interpolymer, multipolymer, and their derivative, and terminal hydroxy group wherein is modified by esterification, etherificate etc.Another kind of suitable ucon oil comprises di-carboxylic acid and the formed ester of various alcohol.Can also comprise C as the ester of synthetic oil
5-C
12The preparation of monocarboxylic acid and polyvalent alcohol and polyol ethers and ester.
Silicone oil (for example many alkyl-, polynary aryl-, polynary alkoxyl group-or polynary aryloxy-silicone oil and silicate oil) comprise another kind of useful ucon oil.Other ucon oil comprises the ester of liquid phosphoric acid, polytetrahydrofuran, poly-alpha olefins etc.
Lubricating oil can be got by refining, refining, rerefined oils or their mixing oil.Unrefined oil directly obtains from nature or synthetic source (for example coal, rock, tar and pitch), needn't further make with extra care or handle.The example of unrefined oil comprises the shale oil that is directly made by destructive distillation, by the petroleum oil that directly makes of distillation, and the perhaps ester class oil that directly obtains from esterification process, above-mentioned any oil all directly uses without further processing.Treated oil and unrefined oil are similar, improve one or more character except treated oil will experience one or more purification steps.Suitable purification technique comprises rectifying, hydrogenation, dewaxing, solvent extraction, acid or alkali extraction, filtration and diafiltration, and these technology are well-known to those skilled in the art.Rerefined oils is that treated oil makes via the art breading similar to the preparation treated oil.These rerefined oils also are known as refiltered oil or handling oil again, and often utilize some technology to carry out extra process, to remove useless additive and oil decomposition product.
In a lot of embodiments, lubricating oil composition among the present invention and metal working fluid also comprise oil-soluble metal passivator, such as triazole or thiadiazoles.If use passivator, its consumption are 0.01-0.5 volume %.This type of passivator comprises for example alkyl derivative of benzotriazole and tolyl-triazole, above-mentioned triazole and diazosulfide R (C for example of triazole, aryl triazoles
6H
3) N
2S, wherein R is hydrogen or C
1-G
10Alkyl.It is the passivator of Irgamet and Reomet that suitable passivator can be bought brand from Ciba Geigy company, and perhaps buying brand from Vanderbilt chemical company is the passivator of Vanlube.
In a lot of embodiments, lubricating oil composition and working fluid also contain anti-fog agent.The adding that anti-fog agent can be chosen wantonly, based on active ingredient, add-on is 0.05-5.0 volume %.The normally oil-soluble organic polymer of anti-fog agent, its molecular weight ranges (viscosity-average molecular weight) are about 300,000-4,000,000.Typical polymkeric substance comprises by the monomer polymkeric substance that makes such as iso-butylene, vinylbenzene, alkylmethacrylate, ethene, propylene, n-butene vinyl-acetic ester for example.Preferred material is polymethacrylate or poly-(ethene, propylene, butylene or iso-butylene), and molecular weight is 1,000,000-3,000,000.Polyisobutene most preferably, molecular weight is 1,600,000-3,000,000, more preferably about 2,100,000-2,350,000.Such polymkeric substance uses with the solution in the mineral oil thinner usually, and strength of solution is the 4-6wt% polymkeric substance.Methacrylic ester can be buied from Rohm GmbH or Rohm and Haas company, and polyolefine material can be buied from Exxon chemical company.
Also use oxidation inhibitor in some application-specific of lubricating oil composition of the present invention and metal working fluid, for example when lubricating oil is born the dual function of cutting fluid and machine oil simultaneously.
Usually, any amine or phenolic antioxidant, or both mixtures all can be used as oxidation inhibitor.If use oxidation inhibitor, its add-on are 0.01-1.0 weight %.Phenolic antioxidant all is that everybody is familiar with.The unrestriced example of phenolic antioxidant comprises, Yoshinox BHT (BHT), two-2, the derivative of 6-two-tert-butyl phenol, sulfur-bearing sterically hindered phenol and sulfur-bearing position sun bis-phenol.
Process of metal working comprises various technologies, and some of them technology comprises from workpiece removes metal, and other technologies comprise and change shape or external form and do not remove metal.The unrestriced example of removing smithcraft comprises, cutting, boring, bore hole, boring mill, broaching and grinding.The unrestriced example that changes workpiece shape or external form and do not remove the metal working process of part metals comprises moulding, punching press and drawing.In all process of metal working, cutter all contacts in the course of processing with workpiece.Workpiece is defined as that side who is removed metal among both or reinvents external form, and cutter is removed the external form of workpiece metal or change workpiece in operation, does not experience physics usually and changes.
But inevitably, metal contacts with metal, and particularly under high loading or high temperature, cutter can change when contacting with workpiece, although have the lubricated or cutter of lubricating composition hard relatively in the zone of action.Usually, the damage of cutter can be weighed by abrasion loss.The wearing and tearing of cutter cause the reduction of sharpness, so that the stock-removing efficiency reduction, perhaps can cause the change of tool dimension so that this cutter no longer to be applicable to metal processing.Usually wish in process of metal working by reducing the work-ing life that its abrasion loss prolongs cutter.
Metal working lubricant of the present invention cools off workpiece and cutter by thermal conduction.Additive in the lubricating oil composition has also reduced the friction on the point of contact, and welding or the catastrophic failure of extreme-pressure additive when having stoped high temperature or high pressure.Under the load or velocity conditions of gentleness, final condition plays a major role, and under extreme condition more, the metal on extreme-pressure additive in the working fluid and cutter and/or the workpiece reacts, form the blocky film of one deck, can be not destroyed under high loading/temperature/pressure condition.
In process of metal working, lubricating fluid of the present invention is used in the zone of action between cutter and the workpiece.Use the method for this lubricating fluid varied, comprise the zone of action is immersed in the lubricating fluid, sprays lubricating fluid, soaks with lubricating fluid and irritate the zone of action, with pump the liquid stream of lubricating fluid injected the zone of action, with the periodic wetting cutter of lubricating fluid or workpiece or continuously or apply any one method of lubricating fluid off and on to the zone of action of cutter and workpiece to the zone of action.
The present invention has described various preferred embodiments, provides following embodiment and further is illustrated without limitation.
Embodiment
Allocate eight test metal working fluids, contained active sulphur, inertia sulphur and the fat of high-content or low levels.Prescription and wear results in the gear cutting research are listed in following table.In this table, the content height of active sulphur and inertia sulphur means that its content is 1.5 weight %, and the content height of fat means that its content is 10 weight %.The content of active sulphur and inertia sulphur is low to mean that its content is 0.2 weight %, and the content of fat is low to mean that its content is 3 weight %.Gear cutting among the present invention operates on the lathe that model that U.S. Pfauter Hobbing company produces is PE80 to be carried out.The test blend of embodiment 1-8 is fed into zone of action between cutter and the workpiece with about 65gpm and 25psi.Use Rex76, Rockwell C hardness is 64.0-66.0, has the A level milling cutter of titanium nitride supercoat to cut the pinion(gear) of 5130H steel.Operational condition: rotating speed rpm=688, axial feed=2.2, one-level feed rate=2.2, shift rate=0.025.After the wearing and tearing of cutter are cut 6,000 workpiece with it, measure its dimensional change (unit in table is inch) and characterize.Metal working fluid of the present invention illustrates with embodiment 1,2 and 3, two components contents height wherein, and the 3rd components contents is low.
Embodiment
| Embodiment | Active sulphur | Inertia sulphur | Fat | Wearing and tearing |
| 1 | High | High | Low | 0.00190 |
| 2 | High | Low | High | 0.00205 |
| 3 | Low | High | High | 0.00220 |
| 4 | High | Low | Low | 0.00325 |
| 5 | Low | High | Low | 0.00380 |
| 6 | Low | Low | Low | 0.00400 |
| 7 | High | High | High | 0.00530 |
| 8 | Low | Low | High | 0.00620 |
The description of this invention in fact just for example, the change of therefore not leaving main idea of the present invention also within the scope of the invention, such change can not be considered to break away from the spirit and scope of the present invention.
Claims (16)
1. Metalworking lubricating oil composition comprises:
Lubricating base oil,
Chlorine, content is less than 10ppm,
Phosphorus, content is less than 200ppm,
Inertia sulphur, the content in composition are A weight %,
Active sulphur, the content in composition are B weight %; With
Fat, the content in composition are C weight %,
Wherein the product of A * B * C is greater than 0.9 weight %, and less than 22.25 weight %.
2. composition according to claim 1, wherein product is more than or equal to 2 weight %.
3. composition according to claim 1, wherein product is more than or equal to 2.5 weight %.
4. composition according to claim 1, wherein product is more than or equal to 2.7 weight %.
5. composition according to claim 1, wherein product is more than or equal to 3 weight %.
6. composition according to claim 1, wherein product is less than or equal to 15 weight %.
7. composition according to claim 1, wherein product is less than or equal to 10 weight %.
8. composition according to claim 1, wherein product is less than or equal to 7 weight %.
9. composition according to claim 1, wherein product is less than or equal to 6.75 weight %.
10. composition according to claim 1, wherein product is more than or equal to 2 weight %, and is less than or equal to 15 weight %.
11. composition according to claim 1, wherein product is more than or equal to 2.5 weight %, and is less than or equal to 10 weight %.
12. composition according to claim 1, wherein product is more than or equal to 2.7 weight %, and is less than or equal to 7 weight %.
13. composition according to claim 1, wherein product is more than or equal to 3 weight %, and is less than or equal to 6.75 weight %.
14. composition according to claim 1 contains the inertia sulphur of 0.1 weight %-3 weight %, the active sulphur of 0.1 weight %-3 weight % and the fat of 2 weight %-20 weight %.
15. composition according to claim 1, wherein the product of total sulfur content (A+B) * C is greater than 5.1 weight %, and less than 30 weight %.
16. composition according to claim 15, wherein product (A+B) * C is more than or equal to 9 weight %, and is less than or equal to 17 weight %.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US56749204P | 2004-05-03 | 2004-05-03 | |
| US60/567492 | 2004-05-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1749378A CN1749378A (en) | 2006-03-22 |
| CN100362088C true CN100362088C (en) | 2008-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100783587A Expired - Fee Related CN100362088C (en) | 2004-05-03 | 2005-05-08 | Gear cutting oil |
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| Country | Link |
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| CN (1) | CN100362088C (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105385486A (en) * | 2015-11-25 | 2016-03-09 | 铜陵市金利电子有限公司 | Lubricating oil for metal processing |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1042732A (en) * | 1988-11-17 | 1990-06-06 | 西屋电气公司 | Lubricating oil composition |
| US5308521A (en) * | 1992-07-08 | 1994-05-03 | The Lubrizol Corporation | Lubricant with improved anti-corrosion properties |
-
2005
- 2005-05-08 CN CNB2005100783587A patent/CN100362088C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1042732A (en) * | 1988-11-17 | 1990-06-06 | 西屋电气公司 | Lubricating oil composition |
| US5308521A (en) * | 1992-07-08 | 1994-05-03 | The Lubrizol Corporation | Lubricant with improved anti-corrosion properties |
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| CN1749378A (en) | 2006-03-22 |
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