CN103060071B - Water-based lubricant and preparing method of the same based on nanometer tungsten disulfide - Google Patents
Water-based lubricant and preparing method of the same based on nanometer tungsten disulfide Download PDFInfo
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- CN103060071B CN103060071B CN201210558116.8A CN201210558116A CN103060071B CN 103060071 B CN103060071 B CN 103060071B CN 201210558116 A CN201210558116 A CN 201210558116A CN 103060071 B CN103060071 B CN 103060071B
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Abstract
The invention discloses a water-based lubricant based on nanometer tungsten disulfide, which comprises the following components and contents, by weight, 1% to 15% of nanometer tungsten disulfide, 1% to 10% of solid lubricant, 0.2% to 3% of antirust agent, 10% to 40% of aqueous stearic acid, 10% to 20% of waterborne zinc stearate, 0.4% to 4% of emulsifying stabilizer, 0.01% to 0.05% of defoaming agent, and 8% to 77% of water. The constituent content of the components sums up to 100%. The preparing method of the water-based lubricant and a usage method thereof are disclosed. The water-based lubricant based on the nanometer tungsten disulfide has the advantages of being good in the lubrication effect of the water-based lubricant, large in elongation coefficient, environment-friendly and unpolluted, and wide in applying scope. In addition, the preparing method of the water-based lubricant and the use method and process steps thereof are simple and fast so as to improve the production efficiency and benefit the environmental protection.
Description
Technical field
The invention belongs to technical field of lubricant preparation, particularly relate to a kind of water-based lubricant based on nano tungsten disulfide and preparation method thereof.
Background technology
In the process of metal plastic forming, between work metal and mould, between surface in contact, produce the resistance of organizing tangential motion, i.e. external friction power when relative movement.The existence of external friction power can make power, energy that machining needs increase, and therefore must be lubricated processing to metallic surface.If metallic surface lubricated do not reach requirement, will make to aggravate die wear, the phenomenons such as workpiece surface sticks together, scratch.Therefore, lubricated and plastic forming has close relationship, and the exploitation of lubrication technology can promote the development of the molded processing of metal cold.
Add man-hour metal cold is molded, the operations such as traditional technology employing is acidified on metal works blank surface, phosphatization, saponification are carried out surface treatment and swabbing, but, this method operation is numerous and diverse, starting material and energy consumption are large, poor working environment, the cycle is longer, also can cause serious environmental pollution.Therefore, find being applicable to the molded lubricant of metal cold and having become the focus of people research of a kind of environmental protection.
Tungsten disulfide is one of best starting material of the generally acknowledged friction, lubrication effect of scientific circles, dry friction coefficient is only 0.03, other material of dry friction Performance Ratio is all good, nano level tungsten disulfide powder is not only applicable to general lubricating condition, also can be used for high temperature, high pressure, high vacuum, high loading, has the Working environment of radiation and corrosive medium.WS
2bunch magnetic producing due to bunch internal arrangement can better be adsorbed on metallic surface and can form in metallic surface one deck nanometer protection lubricant film in greasing, under the temperature environment higher than 550 ℃, and WS
2also can form fine and close Tungsten oxide 99.999 WO by slow oxidation
3protective layer, suppresses WS
2further oxidation, and Tungsten oxide 99.999 has very low rubbing factor equally, still may play protection metallic surface and do not occur the effect of interlock.In atmosphere, the operating temperature range of tungsten disulfide is-270～650 ℃, and in a vacuum, its temperature range is-188～1316 ℃, therefore, tungsten disulfide is used in the high-tech areas such as Aeronautics and Astronautics, military affairs, automotive industry as high performance grinding lubricant for a long time.
At present, tungsten disulfide mainly and oils, lipid are made into tungsten disulfide finish, tungsten disulfide ointment, tungsten disulfide wax and other solid sticks and lubricant film uses.
Summary of the invention
For addressing the above problem, the object of this invention is to provide a kind of water-based lubricant based on nano tungsten disulfide, its high lubricating effect, coefficient of extension is large, environment friendly and pollution-free, be mainly used in the cold molding such as cold extrusion, cold-drawn of metallic substance, meanwhile, provide the preparation method of above-mentioned water-based lubricant, its technique is simple, easy to make, with low cost, can not cause environmental pollution; But also provide the using method of above-mentioned water-based lubricant.
For achieving the above object, the present invention adopts following technical scheme:
A kind of water-based lubricant based on nano tungsten disulfide, by weight percentage, it comprises following component and content: nano tungsten disulfide 1～15%, solid lubricant 1～10%, rust-preventive agent 0.2～3%, water-based stearic acid 10～40%, water-based zinc stearate 10～20%, emulsion stabilizer 0.4～4%, defoamer 0.01～0.05%, water 8～77%, above-mentioned each component concentration sum is 100%.
In the above-mentioned water-based lubricant based on nano tungsten disulfide, the particle diameter of its nano tungsten disulfide is 50～100nm.
In the above-mentioned water-based lubricant based on nano tungsten disulfide, its solid lubricant is the one or more combination in graphite, molybdenumdisulphide, polyethylene wax, tetrafluoroethylene, ethylene bis stearic acid amide, microcrystalline wax.
In the above-mentioned water-based lubricant based on nano tungsten disulfide, its rust-preventive agent is the one or more combination in diethanolamine, 5-aminotetrazole, Sodium Nitrite, Tripotassium phosphate, silane coupling agent, myo-Inositol hexaphosphate.
In the above-mentioned water-based lubricant based on nano tungsten disulfide, its water-based stearic acid is that solid content is 5～30% stearic acid aqueous liquid dispersion, be prepared from by stearic acid, dispersion agent, emulsifying agent, defoamer, sanitas and water, in water-based stearic acid total weight percent, the weight percent of each component is: stearic acid 5～30%, dispersion agent 0.1～0.5%, emulsifying agent 0.1～0.7%, defoamer 0.05～0.5%, sanitas 0. 1～0.5%, surplus is water.
Further, in above-mentioned water-based stearic acid, dispersion agent is the one or more combination in stearyl polyethenoxy ether, sodium polyacrylate, Xylo-Mucine, trisodium phosphate, urea, tripoly phosphate sodium STPP.
Further, in above-mentioned water-based stearic acid, emulsifying agent is the one or more combination in tween-80, polysorbate60, alkylphenol polyoxyethylene, fatty alcohol-polyoxyethylene ether, fatty alcohol and ethylene oxide condensate, polyoxyethylene carboxylate, fatty acid distribution of coconut oil diglycollic amide.
Further, in above-mentioned water-based stearic acid, defoamer is the one or more combination in polypropylene glycerol aether, polydimethylsiloxane, silicone emulsion.
Further, in above-mentioned water-based stearic acid, sanitas is the one or more combination in isothiazolinone, dichlorodimethylhydantoin, methyl p-hydroxybenzoate, Bronopol.
Further, in above-mentioned water-based stearic acid, water is tap water or deionized water.
The stearic preparation method of above-mentioned water-based is: first, by weight percentage water and stearic acid particle are added in reactor, be heated to the whole meltings of stearic acid; Then, under agitation in melting stearic acid, add successively dispersion agent, emulsifying agent, question response system stops stirring after being chilled to room temperature, adds defoamer and sanitas; Then, then carry out superfine grinding 5～10min, obtain stearic acid aqueous liquid dispersion.
In the stearic preparation method of above-mentioned water-based, alr mode is mechanical stirring, and stir speed (S.S.) is in the time of 8000～10000r/min, and the stearic acid aqueous liquid dispersion median size of gained is 5～10 μ m, and viscosity is lower than 200 mPas.
In the above-mentioned water-based lubricant based on nano tungsten disulfide, its water-based zinc stearate is that solid content is 25～40% Zinc stearate water dispersion liquid.
In the above-mentioned water-based lubricant based on nano tungsten disulfide, its emulsion stabilizer is the one or more combination in polyvinyl alcohol, polyoxyethylene glycol, Xylo-Mucine, sodium alginate.
In the above-mentioned water-based lubricant based on nano tungsten disulfide, its defoamer is the one or more combination in polypropylene glycerol aether, polydimethylsiloxane, silicone emulsion.
In the above-mentioned water-based lubricant based on nano tungsten disulfide, its water is tap water or deionized water.
The preparation method of the above-mentioned water-based lubricant based on nano tungsten disulfide, it comprises the following steps:
Step 1, in reactor, add the water of weight percent 5～80%, add slowly the emulsion stabilizer of weight percent 0.4～4% under the stirring velocity of 1000～3000r/min, after mechanical stirring 1～3h, emulsion stabilizer is dissolved in the water completely;
In whipping process, add the defoamer of weight percent 0.01～0.05%, make content and be 5～8% stable emulsifying agent solution;
Step 2, in the solution obtaining in step 1, add successively the water-based stearic acid of weight percent 10～40%, the water-based zinc stearate of weight percent 10～20%, the rust-preventive agent of weight percent 0.2～3%, rotating speed with 1000～3000 r/min stirs 30min～3h, add nano tungsten disulfide and weight percent 1～10% solid lubricant powder of weight percent 1～15%, continue again to stir after 30min～2h, obtain the water-based lubricant of grey black.
The using method of the above-mentioned water-based lubricant based on nano tungsten disulfide, it comprises the following steps: first, prepared water-based lubricant is direct or be diluted with water to 2～20 times of post-heating to 60～70 ℃, puts into wherein metal blank 5～30 min after acid pickling and rust removing; Then metal blank is pulled out, under normal temperature or hot blast state, made contained humidity in the coated lubricant film in metal blank surface fully evaporate, can carry out next step plastic working.
Owing to adopting technical scheme as above, the present invention has following superiority:
Because stearic acid has high temperature melt cooling rear characteristic of easily solidifying again, therefore, easily generate one deck stearic acid film in metallic surface.In the water-based lubricant that the present invention is based on nano tungsten disulfide, nano tungsten disulfide and solid lubricant are well dispersed in the middle of water-based stearic acid, so nano tungsten disulfide and solid lubricant also can be along with stearic acid film covers metallic surface uniformly.When metal cold is molded, the heat that flow of metal produces will make stearic acid and Zinic stearas melting, add surperficial nano tungsten disulfide and solid lubricant, can be good at playing lubricant effect, and liquid stearic acid has mobility and can flow together along with metallic matrix, thereby by metal and mould isolation.
The present invention is based on the water-based lubricant of nano tungsten disulfide, the dual lubrication system that it adopts liquid lubrication to combine with solid lubrication, high lubricating effect, coefficient of extension is large, environment friendly and pollution-free, applied widely, be mainly used in the cold molding such as cold extrusion, cold-drawn of metallic substance, applicable metal species is many; When use, can not bring any harm to environment for use and operator healthy, simultaneously cheap, can improve die pressing product quality, reduce production costs, bring considerable economic benefit for domestic metal cold moulding enterprise.
The present invention is based on the preparation method of the water-based lubricant of nano tungsten disulfide, its operation is simple, and easy handling reduces delivery room area, shortens the production cycle, enhances productivity, and raw material can all use and not discharge, and is conducive to environmental protection.
The present invention is based on the using method of the water-based lubricant of nano tungsten disulfide, its processing step is simple, quick, make moulding after metal surfaces externally and internally smooth, residual little and easy to clean.
Embodiment
Can be described in further detail the present invention with reference to following examples; But following examples are only illustrations, the present invention is not limited to these embodiment.
Embodiment mono-
1, preparing solid content is 30% stearic acid aqueous liquid dispersion
First, 35kg water and 15kg stearic acid particle are added in reactor, be heated to the whole meltings of stearic acid; Then, under agitation in melting stearic acid, add successively 200g stearyl polyethenoxy ether, 50g fatty alcohol and ethylene oxide condensate, question response system stops stirring after being chilled to room temperature, adds 50g polypropylene glycerol aether and 60g isothiazolinone; Then, then carry out superfine grinding 7min, obtain solid content and be 30% stearic acid aqueous liquid dispersion.
2, the water-based lubricant of preparation based on nano tungsten disulfide
Step 1 adds 42g water in reactor, adds slowly 2.2g polyvinyl alcohol 1788 powder under the stirring velocity of 1000r/min, and after mechanical stirring 1.5h, polyvinyl alcohol is dissolved in the water completely; In whipping process, add 0.02g polypropylene glycerol aether, make content and be 5% polyvinyl alcohol solution;
Step 2, to adding successively stearic acid aqueous liquid dispersion, 10g water-based zinc stearate, the 1g diethanolamine that solid content that 40g makes is 30% in the polyvinyl alcohol solution obtaining in step 1, rotating speed with 1500 r/min stirs 1h, add 2g nano tungsten disulfide and 3g powdered graphite, continue again to stir after 1h, obtain the water-based lubricant of grey black.
Embodiment bis-
1, preparing solid content is 20% stearic acid aqueous liquid dispersion
First, 40kg water and 9.7kg stearic acid particle are added in reactor, be heated to the whole meltings of stearic acid; Then, under agitation in melting stearic acid, add successively 100g fatty acid distribution of coconut oil diglycollic amide, 50g tween-80,50g Xylo-Mucine, question response system stops stirring after being chilled to room temperature, adds 10g polypropylene glycerol aether, 30g polydimethylsiloxane and 60g dichlorodimethylhydantoin; Then, then carry out superfine grinding 5min, obtain solid content and be 20% stearic acid aqueous liquid dispersion.
2, the water-based lubricant of preparation based on nano tungsten disulfide
Step 1 adds 60g water in reactor, adds slowly 5.2g polyethylene glycol 6000 powder under the stirring velocity of 2000r/min, and after mechanical stirring 45min, polyethylene glycol 6000 is dissolved in the water completely; In whipping process, add 0.01g polypropylene glycerol aether, make content and be 5% polyethylene glycol 6000 solution;
Step 2, to adding successively stearic acid aqueous liquid dispersion, 20g water-based zinc stearate, the 0.5g 5-aminotetrazole that solid content that 10g makes is 20% in the polyethylene glycol 6000 solution obtaining in step 1, rotating speed with 2500 r/min stirs 1h, add 3g nano tungsten disulfide and 1g molybdenum disulfide powder, continue again to stir after 30min, obtain the water-based lubricant of grey black.
Embodiment tri-
1, preparing solid content is 10% stearic acid aqueous liquid dispersion
First, 45kg water and 5kg stearic acid particle are added in reactor, be heated to the whole meltings of stearic acid; Then, under agitation in melting stearic acid, add successively 100g polyoxyethylene carboxylate, 100g alkylphenol polyoxyethylene, 50g urea, question response system stops stirring after being chilled to room temperature, adds 30g silicone emulsion and 40g methyl p-hydroxybenzoate; Then, then carry out superfine grinding 3min, obtain solid content and be 10% stearic acid aqueous liquid dispersion.
2, the water-based lubricant of preparation based on nano tungsten disulfide
Step 1 adds 51g water in reactor, adds slowly 3.3g sodium alginate powder under the stirring velocity of 3000r/min, and after mechanical stirring 2h, sodium alginate is dissolved in the water completely; In whipping process, add 0.03g polypropylene glycerol aether, make content and be 6% sodium alginate soln;
Step 2, to adding successively stearic acid aqueous liquid dispersion, 20g water-based zinc stearate, the 1.5g myo-Inositol hexaphosphate that solid content that 20g makes is 10% in the sodium alginate soln obtaining in step 1, rotating speed with 2500 r/min stirs 1.5h, add 1g nano tungsten disulfide and 3g polyethylene wax powder, continue again to stir after 2h, obtain the water-based lubricant of grey black.
Embodiment tetra-
The water-based lubricant based on nano tungsten disulfide making in above-mentioned three embodiment, its using method comprises the following steps: first, prepared water-based lubricant is direct or be diluted with water to 2～20 times of post-heating to 60～70 ℃, puts into wherein metal blank 5～30 min after acid pickling and rust removing; Then metal blank is pulled out, under normal temperature or hot blast state, made contained humidity in the coated lubricant film in metal blank surface fully evaporate, can carry out next step plastic working.
Claims (9)
1. the water-based lubricant based on nano tungsten disulfide, it is characterized in that: by weight percentage, it comprises following component and content: nano tungsten disulfide 1～15%, solid lubricant 1～10%, rust-preventive agent 0.2～3%, water-based stearic acid 10～40%, water-based zinc stearate 10～20%, emulsion stabilizer 0.4～4%, defoamer 0.01～0.05%, water 8～77%, above-mentioned each component concentration sum is 100%; Wherein, water-based stearic acid is that solid content is 5～30% stearic acid aqueous liquid dispersion, and water-based zinc stearate is that solid content is 25～40% Zinc stearate water dispersion liquid.
2. the water-based lubricant based on nano tungsten disulfide according to claim 1, is characterized in that: the particle diameter of its nano tungsten disulfide is 50～100nm; Solid lubricant is the one or more combination in graphite, molybdenumdisulphide, polyethylene wax, tetrafluoroethylene, ethylene bis stearic acid amide, microcrystalline wax.
3. the water-based lubricant based on nano tungsten disulfide according to claim 1, is characterized in that: its rust-preventive agent is the one or more combination in diethanolamine, 5-aminotetrazole, Sodium Nitrite, Tripotassium phosphate, silane coupling agent, myo-Inositol hexaphosphate.
4. the water-based lubricant based on nano tungsten disulfide according to claim 1, it is characterized in that: its water-based stearic acid is prepared from by stearic acid, dispersion agent, emulsifying agent, defoamer, sanitas and water, in water-based stearic acid total weight percent, the weight percent of each component is: stearic acid 5～30%, dispersion agent 0.1～0.5%, emulsifying agent 0.1～0.7%, defoamer 0.05～0.5%, sanitas 0. 1～0.5%, surplus is water.
5. the water-based lubricant based on nano tungsten disulfide according to claim 4, is characterized in that: the stearic preparation method of its water-based is: first, by weight percentage water and stearic acid particle are added in reactor, be heated to the whole meltings of stearic acid; Then, under agitation in melting stearic acid, add successively dispersion agent, emulsifying agent, question response system stops stirring after being chilled to room temperature, adds defoamer and sanitas; Then, then carry out superfine grinding 5～10min, obtain stearic acid aqueous liquid dispersion.
6. the water-based lubricant based on nano tungsten disulfide according to claim 1, is characterized in that: its emulsion stabilizer is the one or more combination in polyvinyl alcohol, polyoxyethylene glycol, Xylo-Mucine, sodium alginate; Defoamer is the one or more combination in polypropylene glycerol aether, polydimethylsiloxane, silicone emulsion; Water is tap water or deionized water.
7. a preparation method for the water-based lubricant based on nano tungsten disulfide described in arbitrary claim in claim 1～6, is characterized in that: it comprises the following steps:
Step 1, in reactor, add the water of weight percent 5～80%, add slowly the emulsion stabilizer of weight percent 0.4～4% under the stirring velocity of 1000～3000r/min, after mechanical stirring 1～3h, emulsion stabilizer is dissolved in the water completely;
Step 2, in the solution obtaining in step 1, add successively the water-based stearic acid of weight percent 10～40%, the water-based zinc stearate of weight percent 10～20%, the rust-preventive agent of weight percent 0.2～3%, rotating speed with 1000～3000 r/min stirs 30min～3h, add nano tungsten disulfide and weight percent 1～10% solid lubricant powder of weight percent 1～15%, continue again to stir after 30min～2h, obtain the water-based lubricant of grey black.
8. the preparation method of water-based lubricant according to claim 7, is characterized in that: in step 1, in whipping process, add the defoamer of weight percent 0.01～0.05%, make content and be 5～8% stable emulsifying agent solution.
9. the using method of the water-based lubricant based on nano tungsten disulfide described in arbitrary claim in a claim 1～6, it is characterized in that: it comprises the following steps: first, water-based lubricant is direct or be diluted with water to 2～20 times of post-heating to 60～70 ℃, puts into wherein metal blank 5～30 min after acid pickling and rust removing; Then metal blank is pulled out, under normal temperature or hot blast state, made contained humidity in the coated lubricant film in metal blank surface fully evaporate, can carry out next step plastic working.
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| CN104560292B (en) * | 2013-10-21 | 2018-04-17 | 袁冶 | A kind of aluminium and Cold Extrusion Process of Aluminum Alloy are molded special deep drawn inner wall lubricant and preparation method thereof |
| CN103556157B (en) * | 2013-10-30 | 2015-07-08 | 无锡市威海达机械制造有限公司 | Aqueous antirust agent |
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| CN104818103B (en) * | 2015-03-23 | 2021-03-23 | 重庆电讯职业学院 | Cold extrusion forming lubricant for low-carbon steel parts for automobiles and preparation method thereof |
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| CN105505549A (en) * | 2016-01-08 | 2016-04-20 | 青岛洁能环保有限公司 | Water-based lubricating oil |
| CN105670762B (en) * | 2016-03-24 | 2018-08-03 | 北京科技大学 | A kind of water-base metal processing and lubrication liquid and preparation method thereof containing nano molybdenum disulfide |
| CN106867646B (en) * | 2017-02-13 | 2019-12-17 | 南京路鼎搅拌桩特种技术有限公司 | lubricant for pipeline earth moving machine and preparation method thereof |
| CN111662762A (en) * | 2020-05-21 | 2020-09-15 | 厦门虹鹭钨钼工业有限公司 | Preparation method of lubricating oil added with nano material |
| CN115612546A (en) * | 2020-06-03 | 2023-01-17 | 上海铂斯海特材料科技有限公司 | Water-based metal cold extrusion lubricant and preparation process thereof |
| TWI744154B (en) * | 2020-12-29 | 2021-10-21 | 金允成企業股份有限公司 | Aluminum alloy rod forging and forming method |
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