CN87105053A - Long-term effective anti-corrosive lubricating grease and manufacture method - Google Patents
Long-term effective anti-corrosive lubricating grease and manufacture method Download PDFInfo
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- CN87105053A CN87105053A CN87105053.6A CN87105053A CN87105053A CN 87105053 A CN87105053 A CN 87105053A CN 87105053 A CN87105053 A CN 87105053A CN 87105053 A CN87105053 A CN 87105053A
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Abstract
The present invention be by 12～24 carbon atom fatty acids and or the lithium soap that makes of the saponification reaction of hydroxy fatty acid and lithium hydroxide generation, multiviscosisty mineral oil and or ucon oil, cooperate one or more anti-corrosion anti-wear extreme pressure lubricating main agents, form thixotropy, the semi-solid ointment of sticking paste, and add subsidy additives such as one or more rust-preventive agent, tackifier, pour point depressant, hydrophober and oxidation inhibitor, processing under certain conditions makes.Has very strong tack, preservative property, anti-dry, anti-characteristics such as wash away.
Description
The present invention relates to a kind of polymeric composition.
At present, railroad track concrete sleeper fastening bolt, rail fish (-)bolt, the track switch bolt, the bridge hook bolt, ashcan bolt and industrial and mining enterprises' indoor and outdoor overhead traveling crane, crane, rail clips such as electric car, and equipment firmly foot bolt and various holding bolt, binder bolt and even wireline, chain etc. are exposed to the anti-corrosion measure of the metal connection parts in the outside atmosphere for a long time, be regularly to be coated with the notes used oil every year thereon, the mixing oil of machinery oil or blending quicklime grease is kept.These oil products are because of no rust inhibitor, and rustless property is poor, easily oxidation, and acid number increases after the oxidation, quickens the bolt corrosion on the contrary; It is poor also to exist adhesion property, and oil film is thin to be unable to undergo high temperature and to be exposed to the sun the volatilization of wind, more anti-incessantly heavy rain washes away and runs off, in case the volatilization loss, not only the preservative activity of losing, have the corrosive medium etch screw rod body that is adhering on the contrary, quicken the chemical corrosion and the galvanic corrosion of bolt; These cosmolines use on railroad track, because the thin oil oiling too much can be trickled to the screw rod root, cause rubber rubber cushion swelling under the rail, the lost of life, serious thin oil can corrode the Sulphur concrete and the concrete of cast in the bolt hole, make screw rod loosening, this moment is if the intense impact of being driven a vehicle is loaded the easy root that fractures, influence traffic safety, the extreme pressure and antiwear behavior deficiency of above-mentioned anticorrosion oil product, the fretting wear that screw thread is shaken still can not solve, and thread abrasion can occur, cause the fastening inefficacy of nut, be coated with above-mentioned oil in addition in orbit, workload is big, and fatal accident takes place again easily.
The purpose of this invention is to provide a kind of strong corrosion resistant that has, tack is washed away adeciduate lubricating grease.
The present invention improves above-mentioned shortcoming and has carried out meticulous development test, that is be by the lipid acid of 12～24 of carbon atoms and or hydroxy fatty acid and lithium hydroxide, the lithium soap that makes (A), multiviscosisty kinematic viscosity is 10～80 centistokes in the time of 100 ℃, viscosity index below 150 and condensation point the mineral oil below 15 ℃ and or ucon oil (B), cooperate one or more anticorrosion extreme-pressure anti-wear lubricating main body systems (C), form the semi-solid ointment of the sticking paste of thixotroping shape, and according to regional condition needs, add one or more rust-preventive agent in addition, tackifier, pour point depressant, supplementary additive such as hydrophober and oxidation inhibitor (D) is the long-term effective anti-corrosive lubricating grease of feature.
Among the present invention, by the lipid acid of 12～24 of carbon atoms and or the lithium soap (A) that makes of hydroxy fatty acid and lithium hydroxide be lithium salts by the saponification reaction generation, in order to multiviscosisty base oil (B), in base oil, exist as insoluble slight fiber, the base oil network between the micropore of fibrous texture be adsorbed on fiber surface, the base oil of liquid state is become mutually thixotropy and the gelatinous semi-solid lithium soap grease of rheological.It has fabulous shear security, water tolerance, high dropping point (170～190 ℃), rust-preventing characteristic, antioxygen and wear resistance and extreme pressure property preferably.
Here, the carbon atom described in (A) be 12～24 lipid acid and or hydroxy fatty acid, it comprises natural acid and synthetic fatty acid.For example: dodecylic acid (lauric acid), tetradecanoic acid (tetradecanoic acid), hexadecanoic acid (Palmiticacid, palmitinic acid), octadecanoic acid (stearic acid), arachic acid (common people's acid), behenic acid (docosoic), tetracosa carbon acid, 9-oxystearic acid, 10 hydroxy stearic acid, 12-oxystearic acid, 12-hydroxyl behenic acid, 10-hydroxyl cetane acid etc.If become soap system fat with a kind of acid separately, then carbonatoms lacks the person, and the chain of its fatty acid soaps is shorter, just is insoluble in oil, but the lubricating grease breed structure is comparatively desirable; Otherwise, use the many acid of a kind of carbonatoms separately, though because of chain length is soluble in oil, the thixotropy and the rheological of lubricating grease are relatively poor; So use octadecanoic acid or 12-oxystearic acid ideal.If use two kinds of acid compound, though the proportioning of carbonatoms and two kinds of acid without limits, also suitable with octadecanoic acid and 12-oxystearic acid, both ratios are more satisfactory with 1: 2.
The shared ratio of lithium hydroxide in the lithium soap, according to use carbon atom have what lipid acid with or the number of which hydroxyl be different calculating of consumption of what carbon atom acid.But the saponified of lithium generally is advisable with 5～10 weight % that account for whole lubricating grease weight, 6.1～9.2 weight % preferably, and for adapting to the difference of south, boreal climate condition, southern type uses 7.1～9.2 weight %, and it is optimum that northern type uses 6.1～8.2 weight %.
Base oil of the present invention is with kinematic viscosity 10～80 centistokes in the time of 100 ℃, viscosity index below 150 and condensation point the mineral oil below 15 ℃ and or ucon oil (B), it is to form another importance that the present invention embodies denseness, film-forming properties, tack, anti-extreme pressure, oilness, weathering resistance and sealing corrosion, viscosity is high more, and above-mentioned performance is just good more; Viscosity index is bigger, and the characteristic that viscosity with temperature changes is more little, and condensation point is higher, and then You low temperature properties is good more.In other words, require basic oil viscosity to want high, lower temperature resistance will be got well, and the variation of viscosity with temperature is little when high low temperature.Being fit to kinematic viscosity of the present invention is 10～80 centistokes in the time of 100 ℃, is 15～65 centistokes preferably, and suitable is 20～55 centistokes; Viscosity index is below 150, is 70～130 preferably, and condensation point is-15～-60 ℃ Dormant oils and an or ucon oil below 15 ℃ preferably.Less than 10 centistokes, above-mentioned performance deficiency can not be long-acting during 100 ℃ of viscosity, and viscosity is limited by raw material greater than 80 centistokes, and cost uprises, and practical value is little; Viscosity index is greater than 150, and cost is also high, no practical value; Condensation point and viscosity have specific relation to cross to exceed the low practical value of all not having.
Can satisfy the representational commercially available oil of aforementioned these conditions, as ucon oil, generally almost can both be fit to, but concerning commercially available mineral oil, viscosity is high, and condensation point and viscosity index are generally all not too high, uses mineral oil must carry out deep refining to mineral oil as base oil in other words, dewaxing, the matter of coming unstuck and bituminous matter etc. are perhaps added pour point depressant and viscosity index improver is adjusted.And must be noted that deep refining must descend to some extent to viscosity, and improve viscosity again, also to add tackifier.But the long lasting static state of the present invention is anticorrosion is main, dynamically lubricating is few, wax and bitum existence to anticorrosion also be favourable, so to using the again deep refining of mineral oil as base oil, also not necessarily must deep refining, add some pour point depressants and viscosity index improver, adjustment also is suitable for.And the commercially available oil product that suitable the present invention adjusts with additive can be enumerated: homemade No. 20 diesel engine oils, No. 28 roll oil is synthesized in roll oil, Q/SHC42～77, and No. 24 saturated steam cylinder oils, No. 38, No. 52 superheated steam cylinder oils, SY1203-7765 synthetic steam cylinder oil, Q/SHC41-77 synthesize the automobile gear wet goods.Synthetic oil price is more expensive, and No. 24, No. 38, No. 52 locomotive oil is more suitable, especially No. 38, No. 52 superheated steam cylinder oils.Deep refining by above-mentioned viscosity, condensation point, viscosity index numerical value regulation is suitable for and belongs to the present invention.
The consumption of base oil is 70～90% of whole weight of the present invention, be 75～85 weight % preferably, and according to the difference of weather condition, southern type requires denseness bigger, and the base oil consumption can lack slightly, lithium is saponified should to be increased in right amount, with 78～81 weight % is optimum, and northern type requires denseness less, and the base oil consumption will increase, lithium is saponified can be reduced in right amount, is optimum with 80～84.
Among the present invention,, adhesion weather-proof, anticorrosion, wear-resistant, extreme pressure, two or more functional propertys such as lubricated and based on the main substance of dominating function of the present invention about cooperating one or more anti-corrosion anti-wear extreme pressure lubricating main agents (C) to be meant to have.They have: (1) refined asphaltic bitumen class, (2) high molecular polymer class, (3) solid lubricant class.(1) class has very strong insulation, anti-water, anticorrosion and tackiness, their softening temperature height, vaporization at high temperature is few, oil soluble is good, clinging power is strong, as: No. 1, No. 2, No. 3 special-purpose petroleum pitch, paint bitumen, rock asphalt, special No. 5 pitches etc. especially use No. 1, No. 2 special-purpose petroleum pitch or special No. 5 pitch effects the most excellent, and addition is 4-10 weight %.According to southern and northern weather condition difference, southern type can be with 6～10 weight %, general southern type is preferably 7～9 weight %, north type can be with 4～7 weight %, the most handy 5～7 weight % of general northern type, if be lower than 4 weight %, performance can not be kept long-acting, and surpass 10 weight %, also do not see especially big synergy.(2) family macromolecule polymer class has sticking tough cohesive power and the weather-proof antiseptic property of promoting (1) class, as polyethylene, polypropylene, Synolac, Resins, epoxy etc., to use Synolac or Resins, epoxy even more ideal, but use Resins, epoxy should note using the following various subsidy additives of cooperation, should not be with impelling solidified amine or the like.Addition is 1～2%(weight).(3) class solid lubricant, it has extreme pressure strong under high low temperature, wear-resistant, oilness, and chemical proof is acidproof, alkali salt corrodibility and anti-penetrating property of the width of cloth, to the insoluble of profit with to the viscous resistance of oil, collaborative (1), (2) class forms main body agent of the present invention, and as graphite, molybdenumdisulphide, tungsten disulfide etc., slightly inferior have plumbous oxide, a zinc oxide etc., the most handy graphite and or molybdenumdisulphide, consumption is 3～4 weight %.
Among the present invention, about add the material that subsidy additives (D) such as one or more rust-preventive agent, tackifier, pour point depressant, hydrophober and oxidation inhibitor are meant enhancement, additional or various functional propertys of collaborative the present invention in addition according to area and condition needs.
Rust-preventive agent is to promote with the supplementary copy invention to have stronger oxidation-resistance, and the material of antiseptic and rustproof performances such as resistance to salt(spray)fog and humidity resistance is to guarantee smearing the once long-term complete requirement in 3 years that reaches cruelly in atmosphere.Be suitable for oil-soluble antirust agent of the present invention as mahogany acid (barium, sodium, calcium) salt, dinonyl naphthalene sulfonate barium, laurylene base (or hexadecylene base) Succinic Acid, zinc naphthenate, stearic acid, oxidized petrolatum and barium soap or zinc soap, lanolin, lanolin magnesium (or aluminium, calcium) soap, the sulfonation lanolin calcium soap, the sulfoxidation petrolatum, sorbitan list glyceride (Si Ben-80), tetrahydroglyoxaline and derivative thereof, benzotriazole, N, two (benzotriazole methylene radical) lauryl amines of N, single oleic acid (or two or three oleic acid) trolamine etc.Because of dinonyl naphthalene sulfonate barium and dodecenylsuccinic acid compatibility can improve rust-preventing characteristic, and the latter is again good aqua, can give stringiness, effective because of lanolin magnesium soap to base oil again with strong adhesion, atmospheric exposure, low temperature does not ftracture, salt fog resistance and humid are all good, so more satisfactory dinonyl naphthalene sulfonate barium, dodecenylsuccinic acid and lanolin magnesium soap of being to use, outer dosage (refers to the addition that whole fat weight are outer, promptly be not counted in application range (A), (B) and (C) within the total amount, down with) be respectively 4%, 3% and 5%(weight %).
Tackifier, pour point depressant, hydrophober are to promote and replenish adhesivity of the present invention, pin down that coalescence disperses to form anticorrosion lubricated screened film in all components, and making does not at high temperature not ftracture under sagging, low volatilization, the low temperature does not come off, and are subjected to that violent storm is dry does not wash away.Tackifier can increase oil viscosity, the oil that also makes that has has stringiness, the zero pour effect that has the reduction base oil concurrently that has, given low-temperature performance, and the feature that changes of the viscosity with temperature that can change base oil, have more than 250 ℃, still keep oil viscosity, still have certain flowability below-30 ℃, make the present invention can satisfy severe cold area and use, use temperature is below-40 ℃, and product has poly-n-butyl vinyl ether, polymethacrylate and polyisobutene, the polyisobutene addition reaches 6% pair of oil remarkable stringiness, and all has good tack and anti-water drenching in the time of-40 ℃～50 ℃.Lanolin magnesium soap also is a kind of tackifier and has the complete sudden and violent rust-preventing characteristic of atmosphere concurrently that so also be rust-preventive agent, low temperature resistant, low temperature does not ftracture, and can cooperate moiety of the present invention to improve low temperature resistant anti-water drenching energy, is well suited for the present invention.Comparatively ideal is with polymethacrylate, polyisobutene and lanolin magnesium soap, in addition dosage for the former 1%, polyisobutene is 6%, the dosage in addition of lanolin magnesium soap is in conjunction with the outer dosage and the regional conditional decision of practical application of above-mentioned rust-preventive agent.
Oxidation inhibitor is to make the present invention have better antioxidant property, makes it in the life-time service more stable quality, and suitable have a pentanoic, 2,6 ditertiary butyl p cresol, and outer dosage is respectively 0.3 and 1%.Both optional one, but (2) family macromolecule polymkeric substance has been selected Resins, epoxy for use in the aforementioned body agent (C), then can not use pentanoic.
Embodiment 1:
Above-mentioned each (C), (D) component and proportioning, because of China soil vast, the various places weather condition all have difference, though determined southern type and the northern type scope of optimum amount %, but this is general, rare difference or special area are also needed the concrete weather of basis on the spot, selected component of situations such as condition and proportioning, what have can lacuna, what have can increment, but all be limited within the scope that the present invention stipulates the component that is fit to and consumption limit and regulation, above-mentioned each (A), (B) component and consumption concrete definite a certain consumption % in specialized range is essential in conjunction with (C), (D) consumption is determined, must meet following table at last:
1. the preparation of viscosifying agent:
At first the lipid acid of whole 12～24 carbon atoms of dosage and or hydroxy fatty acid and full dose base oil (mineral oil and or ucon oil) 1/3 putting in the refining still (B), be heated to 80～90 ℃ and make the lipid acid fine melt, the lithium hydroxide aqueous solution that slowly adds whole dosages then, carry out the preparation manipulation of viscosifying agent, in reaction, constantly stir, intensification controlled temperature in limit carries out saponification in 100 ℃, until reacting completely.Add in the reaction process in the main body agent (C) the held concurrently solid lubricant of densification of oil.
2. the multiviscosisty of base oil:
Multiviscosisty prepare qualified after, under constantly stirring, begin to warm to 160～180 ℃ and add whole surpluses (2/3) base oil gradually, and fully stir, make it to be uniformly dispersed.
3. the cooperation of main body agent:
In thickening, after all the surplus base oil adds, continue to heat stir under temperature rise gradually again, treat that temperature is raised to 160 ℃ once again, beginning adds the refined asphaltic bitumen of the whole main body agent (C) of dosage gradually, and the limit adds, and the limit is stirred and heated up, after whole refined asphaltic bitumen fusions are uniformly dispersed, begin to warm to 230 ℃ and stop heating.
4. discharging cooling:
When refining temperature reaches 220 ℃, the discharging cooling, earlier whole materials are pumped into by the refining still and stir cooling in the cooling reactor, when temperature drops to 180 ℃, begin to add respectively main body agent (C) high molecular polymer, with tackifier, pour point depressant and the oxidation inhibitor of subsidy additive (D), and the stirring that keeps cooling, treat that temperature drops to 120 ℃, add rust-preventive agent, wait the rust-preventive agent fusion to be uniformly dispersed after, pump.
5. grind and disperse:
Pump material and be finished product, through being up to the standards the packing warehouse-in through grinding three times.
Embodiment 2:
Because local climate condition difference, each composition and proportioning just do not have fixed constraints, so following concrete instance also can not limit the present invention.Quality product meets following two tables:
The present invention in 1984 respectively in national south, the north four Railway Bureaus (Shenzhen, Guangzhou, Shenyang, Harbin, Liuzhou) eight track divisions, the actual use obtained obvious economic effect. The present invention has the Corrosion Protection that excellence was arranged in 3 years entirely cruelly in atmosphere, strong adhesion property, high temperature (120 ℃) do not trickle, few volatilization, low temperature (
0 ℃) do not ftracture, do not come off, the Exposure to Sunlight wind is not dry, the characteristics such as anti-heavy rain washes away, and have the antidetonation extreme pressure anti-attrition of fastener screw thread, and guarantee at any time to turn nut, save the oiling number of times 2～5 times in 3 year, do not comprise and prolong fastener and sleeper life-span, change fastener sleeper flat cost, only oil consumption with expenses of labour by the existing railway in the whole nation by 40,000 kilometers, can save 682～2 every year, 0,200,000 yuan, the particularly important is and make traffic safety obtain strong assurance.
Claims (2)
1, long-term effective anti-corrosive lubricating grease and manufacture method is characterized in that the prescription and the production process that make this anti-corrosion grease comprise:
A, by 12～24 carbon atom fatty acids and or the lithium soap that makes of the saponification reaction that produces of hydroxy fatty acid and lithium hydroxide;
B, multiviscosisty kinematic viscosity are 10～80 centistokes in the time of 100 ℃, viscosity index more than 150 and condensation point the mineral oil below 15 ℃ and or ucon oil;
C, cooperate one or more anti-corrosion anti-wear extreme pressure lubricating main agents.
D, formation thixotropy, the semi-solid ointment of sticking paste, and add subsidy additives such as one or more rust-preventive agent, tackifier, pour point depressant, hydrophober and oxidation inhibitor.
2, according to described long-term effective anti-corrosive lubricating grease of claim 1 and manufacture method, it is characterized in that with 12～24 carbon atom fatty acids among the above-mentioned A and or whole and the B mineral oil in fluid of hydroxy fatty acid formula ratio and or 1/3 input of ucon oil refine in the still, heat treat the lipid acid fine melt after, slowly add the whole lithium hydroxide aqueous solution limit of dosage and stir, the limit is warmed up in 100 ℃.Carry out saponification, the solid lubricant that adds main body agent C, continue to stir and be warmed up to 160 ℃～180 ℃, all the other 2/3 full dose oil that add B gradually, in abundant dispersed with stirring, treat that temperature is raised to 160 ℃ of refined asphaltic bitumens that add main body agent C again gradually, warming while stirring to 230 ℃, stop heating, pump into the cooling reactor stirring and be cooled to 180 ℃, add the high molecular polymer of main body agent C respectively, the tackifier of subsidy additive D, pour point depressant, oxidation inhibitor continues to be cooled to 120 ℃, adds the rust-preventive agent of subsidy additive, after disperseing through stirring again, chemically examine and pump grinding three times after qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87105053.6A CN1006231B (en) | 1987-08-03 | 1987-08-03 | Long-term effective anti-corrosive lubricating grease and its prodn. method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87105053.6A CN1006231B (en) | 1987-08-03 | 1987-08-03 | Long-term effective anti-corrosive lubricating grease and its prodn. method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN87105053A true CN87105053A (en) | 1988-02-03 |
| CN1006231B CN1006231B (en) | 1989-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN87105053.6A Expired CN1006231B (en) | 1987-08-03 | 1987-08-03 | Long-term effective anti-corrosive lubricating grease and its prodn. method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1006231B (en) |
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- 1987-08-03 CN CN87105053.6A patent/CN1006231B/en not_active Expired
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| CN110846913A (en) * | 2019-11-26 | 2020-02-28 | 江苏赛福天钢索股份有限公司 | Steel wire rope for hoisting polymer rope core |
| CN111117730A (en) * | 2019-12-27 | 2020-05-08 | 柳州欧维姆结构检测技术有限公司 | Protective grease for bridge inhaul cable and preparation method thereof |
| CN111286387A (en) * | 2020-02-26 | 2020-06-16 | 上海果石实业(集团)有限公司 | Damping lubricating grease for furniture sliding rail with long service life and preparation method thereof |
| CN111286388A (en) * | 2020-02-26 | 2020-06-16 | 上海果石实业(集团)有限公司 | Special lubricating grease for ships and warships and preparation method thereof |
| CN111286388B (en) * | 2020-02-26 | 2022-08-12 | 上海果石实业(集团)有限公司 | Special lubricating grease for ships and warships and preparation method thereof |
| CN113845962A (en) * | 2021-10-14 | 2021-12-28 | 贝莱纳新能源科技(上海)有限公司 | Chain lubricant composition and preparation method thereof |
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