CN1435472A - Lubricating oil composition for wide steel strip hot continuous mill rolling process - Google Patents
Lubricating oil composition for wide steel strip hot continuous mill rolling process Download PDFInfo
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Abstract
A lubricating oil composition for hot tandem rolling of wide steel band contains a component (d) composed of a surface layer which is dialkylbithiophosphoric acid or monocarboxy fatty acid, and a kernel which is the nano TiO2 particle. Its advantages are excellent lubricating performance, high resistance to emulsifying, and no deposition and demixing.
Description
Invention field
The present invention relates to lubricating oil composition, be specially adapted to a kind of rolling lubricant of straight carbon steel wide steel strip hot continuous mill group.
Background technology
In wide steel strip hot rolling process, roll will contact with the rolled piece about up to 1000 ℃, and spray is cooled off with a large amount of water coolants, bear the huge rolling pressure that the viscous deformation owing to steel plate produces simultaneously, under this condition, work roll surface very easily produces be full of cracks and heavy wear, even can peel off defective such as scaling.For guaranteeing quality product, realize that lubrication and rolling can obtain following benefit:
1) improved the surface appearance of roll
Under hot-rolled condition, working roll contacts with the water coolant that cools off roll with the band steel and generates Fe
3O
4, Fe
2O
3Etc. rigid very big oxide compound, this oxide compound is bonded at roller surface, is referred to as " casting skin ", and this unsettled " casting skin " is the major reason that causes the roller surface inordinate wear.After realizing lubrication and rolling, separated by one deck oil-bound film between roller surface and the rolled piece, thereby prevented the generation of roller surface " casting skin ", the work-ing life of having improved roll.
Owing to lubrication and rolling, improved the surface appearance of roll, reduced the wearing and tearing of roll, also reduced the stock removal of roll simultaneously, the assembling amount promptly significantly reduces the workload that the grinding roller workshop is equipped with roller.
Because lubrication and rolling has reduced the abrasion loss of roll, thereby has improved the amount of shutting out that roll whenever changes a roller.Reduce the roll change number of times, improved the throughput of milling train.
Owing to improved roll surface condition, thereby also improved the surface quality of band steel, improved the Flatness of band steel, reduced the iron scale of belt steel surface.For the hot-rolled sheet that goes the cold rolling mill pickling, pickling speed is greatly improved.
2) reduced rolling pressure
Because lubrication and rolling descends the distorted area internal friction, thereby rolling pressure is descended significantly.This can be avoided the overload tripping operation for rolling big load specification band steel, and the minimizing accident reduces waste product.
3) reduced power consumption
Because lubrication and rolling has reduced friction energy loss, thereby has reduced rolling pressure, has saved electric energy.
During steel hot rolling, water coolant is unique cooling and lubricant medium always.People once adopted technological lubrication on shape mill, promptly when rolling complex face steel (as rail), smear pitch, but used pitch can produce a large amount of black smokes and unpleasant toxic gas.
Nineteen fifty-seven, lubrication in heat-rolling process oil is succeedd in the U.S. and is used, and the lubricant of Shi Yonging was water miscible oil at that time, was applied on the supporting roll of finishing train, but because the market of steel market are the seller's market at that time, and there are not the present various target levels of product quality that the steel market had.Therefore, the rolling lubrication technology is not subjected to the favor of Steel Plant.In recent ten years, owing to the specification of quality of steel market to thin strip improves day by day.Simultaneously hot strip mill to continuously, at a high speed, direction large-scale, automatization develops, the life cycle of roll shortens significantly relatively, roll change has caused the loss of activity duration continually, thereby rolling mill yield is had very big influence.Therefore, to reduce roll wear, the surface quality that improves hot rolled strip is that the research of the lubrication in heat-rolling process of main starting point progressively draws attention.Some countries such as Japan, West Europe, Russia have also carried out the experimental study of lubrication in heat-rolling process in succession subsequently, and reach practical application.Develop into now, existing in the world tens of cover hot strip rolling mill have been used technological lubrication oil.
During the hot rolling of steel plate band, fluid dynamics factor enters the distorted area to lubricant and cuts much ice.The degree that lube layer thickness increases with roll speed is more obvious when cold rolling, because along with the increase of roll speed, short in the duration of contact of preceding lubricated district lubricating oil and hot strip steel, therefore, oil body lowers fewly.
Lubrication in heat-rolling process is a dynamic process, at distorted area high temperature, at a high speed, under the high pressure conditions, the variation that lubricating oil took place is difficult to experiment and simulates, and therefore, the hot rolled lubrication mechanism is not still had unified understanding.It has been generally acknowledged that hot-rolling lubricating oil is with three kinds of state lubricates.
Part lubricating oil is burned, and combustion residue mainly is a carbon residue, and roll and metallic surface are separated, and the frictional coefficient between carbon residue and metal and the roll is less than the solid friction coefficient between metal and the roll.
Part lubricating oil is vaporization and decomposition rapidly under high temperature, the high pressure in the distorted area, and in the sealed area, the lubricating oil of vaporization forms the High Temperature High Pressure air cushion, and metal and roller surface are separated and lubricate, and the friction between this gas is much smaller than the friction between fluid.
Part lubricating oil may keep original state, passes through the distorted area and lubricate with the form of fluid form or formation lubricant film.
Because modern hot rolling technology characteristics are high temperature, high pressure, working roll roll surface instantaneous temperature can reach 600～700 ℃, is stabilized between 50～80 ℃ through cooling heat dissipation, and therefore, for adapting to the hot rolling technology characteristics, hot-rolling lubricating oil should satisfy following requirement:
Have good lubricity, reduce friction, reduce wear; Have good adsorption performance and wettability, so that form firm lubricant film continuously at roller surface; Modest viscosity is easy to carry and spraying, is difficult for extruding in the distorted area; Have good demulsification performance, can the water coolant of cooling roll not polluted; Has higher flash-point and thermolysis stability; Lubricant combustion gas amount is few, and combustionmaterial should be nontoxic, and environmental pollution is few.
Traditional hot-rolling oil can be divided into by its user mode: emulsion, solid lubricant and oil and oil-water mixture.
Emulsion normally is solvent with water, and its cooling power is more much bigger than oil, life-time service capable of circulation, and oil consumption is also lower.But in hot rolling technology, the tack of emulsion, lubricity are all very poor, and the high-pressure cooling water of emulsion and cooling roll mixes simultaneously, and water coolant is produced serious pollution.So emulsion is seldom used in hot rolling technology at present.
Solid lubricant is a solid shape, usually solid lubricant is made bulk, with 1.5～30Kg/cm
2Pressure is pressed on roller surface.These solid lubricants normally synthetic glass, graphite and solid wax are the lubricant on basis, and are comparatively loaded down with trivial details during owing to application, hindered the cooling performance of water coolant breaker roll simultaneously, so solid lubricant is also seldom used in hot rolling technology at present.
Oil and oil-water mixture hot-rolling lubricating oil are that oiliness improver and mineral oil are used in the hot rolling technology system of special equipment with vegetable and animals oils such as Oleum Gossypii semen, rape seed oil, plam oil, tallow etc. normally.Because the requirement to adsorptivity, anti-water drenching and demulsification performance is more and more harsher, the alcohol ester of a lot of higher fatty acid such as PETO, tetramethylolmethane dicaprate, tetramethylolmethane four decylates etc. all are used on the hot rolling technological lubrication gradually.
The wide steel strip hot continuous mill lubrication in heat-rolling process oil that uses in the market is many to be main component with metal-salt, is aided with other functional additive again and forms.As: US5437802 has introduced a kind of hot-rolled lubricant, and it mainly is made up of the mineral compound of 10-40% or inorganic materials (as lithium saponify, calcium grease, water glass, potassiumphosphate etc.), dispersion agent (as mineral oil, rape seed oil, peanut oil, cottonseed wet goods), sulfur-containing extreme-pressure additive (as ZDDP etc.), inorganic lubricant (as graphite, molybdenumdisulphide, mica etc.) etc.This hot-rolled lubricant has the excellent electric insulating energy, can avoid the propagation of the heat of hot-finished material to working roll, thereby has avoided the thermal distortion of working roll, has improved the surface quality of rolling back sheet material.But this hot-rolled lubricant is liquid-solid blended lubricant, and the addition of solid lubricant (as graphite, molybdenumdisulphide) and granular size are all had strict restriction, otherwise precipitating and layering can appear in lubricant itself.Because precipitation and stratified existence can be stopped up injection system during application, the fuel feeding fault occurs.
US5372736 has introduced a kind of synthesis type hot-rolling lubricating oil, and it is by 40～70% greater than the saturated or unsaturated binary of 18 carbon or the carboxylate of polyprotonic acid and Fatty Alcohol(C12-C14 and C12-C18), and 30～60% base oil and other additive are formed.This kind lubricant is used for course of hot rolling and has fabulous anti-sticking roller performance and good dried up plate-out ability energy.US5352373 has reported a kind of hot-rolled steel plate lubricant, and its composition mainly is 30～60% high base number metal sulfonate (as calcium sulfonate with high base number, sulfonate with high base number magnesium etc.), and the base number of metal sulfonate is not less than 200mgkoH/g; 40～60% base oil.This kind hot-rolling oil not only can rolling straight carbon steel, and can rolling stainless steel and high chromium steel, and it has oilness preferably, can avoid that the defective and the roll of surface of steel plate bites after the hot rolling.But the common drawback of these two pieces of patents is that lubricity is poor under the High Temperature High Pressure hot-rolled condition, occurs emulsification in water easily, occur roll or belt steel surface the scratch and to the cooling water pollution phenomenon.
Summary of the invention
The purpose of this invention is to provide a kind of lubricating oil composition for wide steel strip hot continuous mill rolling process, said composition is the liquid of clear, in wide steel strip hot rolling process, provide good lubricity, prevent that roll from producing thermal distortion and scratch, prevent Surface Defects in Steel Plate, good demulsification performance is provided, prevents the pollution of water coolant.
The invention provides a kind of lubricating oil composition for wide steel strip hot continuous mill rolling process, it is characterized in that: contain component (d) in the said composition, component (d) is to be that the upper layer kernel is the nano particle of titanium dioxide with dialkyl dithiophosphoric acid or mono carboxylic lipid acid, and the diameter of nano particle is 5～50nm.The content of described component (d) is 1～8%, preferably 3～5%.
Component (d) is an extreme pressure anti-wear additives; can be the octadecyl phosphorodithioic acid as the titania nanoparticles as upper layer such as the titania nanoparticles of upper layer or oleic acid, linolic acid, isocaprylic acid, n-caprylic acid, enanthic acid, capric acid, palmitinic acid or coconut oil etc., the diameter of its titania nanoparticles be 5-50nm.
The making method of the nano particle in the described component (d) is to utilize sol-gel finishing method, uses mono carboxylic lipid acid or dialkyl dithiophosphoric acid and tetrabutyl titanate to react the product that obtains in the presence of water.
In the present composition, also contain this area base oil, oiliness improver, rust-preventive agent and oxidation inhibitor etc. commonly used.Except that said components (d), other components and content are as follows in the recommendation present composition:
(a) 45～80% base oil;
(b) 0.5～5% phosphoric acid ester;
(c) 10～40% animal-plant oil or synthetic ester;
(e) 0.5～5% rust-preventive agent;
(f) 0.2～0.5% oxidation inhibitor.
Wherein component (a) is a basic components, as the thinner of other additive or carry agent, can be neutral oil, mineral oil, locomotive oil or bright stock.As 500SN, 150BS etc.This component shared ratio in composition is 45～80%, is preferably 50～72%.
Component (b) can be one or more the composition in the nitrogen containing derivative of metal-salt, chloro phosphoric acid ester and phosphoric acid ester of phosphoric acid ester, phosphorous acid ester, thiophosphatephosphorothioate, thiophosphatephosphorothioate, as: Tritolyl Phosphate, di-n-butyl phosphite or zinc dialkyl dithiophosphate etc.This component shared ratio in composition is 0.5～5%, is preferably 1～3%.
Animal-plant oil described in the component (c) can be Oleum Gossypii semen, peanut oil, rape seed oil, refining rape seed oil, refined soybean oil or prepared lard; Described synthetic ester is by C
12～C
18Lipid acid and the carboxylate that generates of polyvalent alcohol esterification, as oleic acid trihydroxymethylpropanyl ester, pentaerythritol oleate, coconut oil trihydroxymethylpropanyl ester or oleic acid DOPCP etc.This component proportion in composition is 10～40%, is preferably 20～37%.
Component (e) is a rust-preventive agent, can be one or more the composition in petroleum sodium sulfonate, barium mahogany sulfonate, dinonyl naphthalene sulfonate barium, zinc naphthenate and the dodecenylsuccinic acid.This component shared ratio in composition is 0.5～5%, is preferably 1～3%.
Component (f) is an oxidation inhibitor.Can be phenols or amine, as 2.6-ditertbutylparacresol, phenyl-a-naphthylamine, N, N`-two sec-butyls be to aniline or 4,4`-methylene radical-Lian 2,6-tert.-butyl phenols etc., this component shared ratio in composition is 0.2～0.5%, is preferably 0.3～0.5%.
Percentage composition involved in the present invention all is weight percentages.
Preparation of compositions method provided by the present invention is after component (a) and (b), (c), (d) are mixed, be heated to 70～90 ℃, constant temperature stirred 20～40 minutes, and the back adds component (e), (f), continuation constant temperature is stirred to solid matter and dissolves fully, promptly obtains the liquid product of homogeneous transparent.
The present invention compared with prior art, because its component (d) is that a kind of surface is an organic layer, kernel is the nano particle of titanium dioxide, nano particle with this structure is at relatively lower temp, under the lower pressure, the surperficial organic layer of nano particle is similar to the mechanism of action of oiliness improver and lubricate, and at high temperature, high pressure, under the high speed condition, the surperficial organic layer of nano particle is destroyed, at this moment the nano particle lubricate of titanium dioxide, even at high temperature, high pressure, do not decompose under the high speed hot-rolled state yet, but spread over roll and belt steel surface equably and play good lubrication, thereby the present composition has good oilness under High Temperature High Pressure.The superiority of the present composition also is, because the nano particle in its component (d) can be dissolved in paraffinic base or the naphthenic base oils fully, so solution clear, do not have precipitation and layering, avoided common solid lubricant (as graphite, molybdenumdisulphide, mica etc.) muddiness, precipitation and demixing phenomenon in base oil, to occur.
The present composition can the stoste form use, and also can dilute use.
Embodiment
Describe the present invention in detail with specific embodiment below, but these embodiment do not limit the present invention.
Embodiment 1
Get 64 gram 500SN neutral oils, 2 gram Tritolyl Phosphates, 28 gram oleic acid dimer acid DOPCP, the titania nanoparticles of 4 gram isocaprylic acids places same container, being heated to 75 ℃ stirred 25 minutes, after treating that solution mixes, add 1.5 gram barium mahogany sulfonates again, 0.3 gram 2.6-ditertbutylparacresol, keep 75 ℃ of temperature, continue to be stirred to solid matter and dissolve fully, get clear solution, be product.
Embodiment 2
Get 60 gram 150BS bright stocks, 2 gram di-n-butyl phosphites, the refining rape seed oil of 32 grams, the oleic titania nanoparticles of 4 grams places same vessel in heating to 85 ℃, stirred 30 minutes, after treating that solution mixes, add 1.5 gram dinonyl naphthalene sulfonate bariums again, 0.5 gram phenyl-a-naphthylamine, continue heated and stirred to solids and dissolve, solution is transparent.
With embodiment 1, embodiment 2 is correlated purpose as composition of the present invention, and reference substance is the lubricant that wide steel strip hot continuous mill is using, and is defined as composition B.Composition B mainly consists of: mineral oil, synthetic ester, sulfur-containing extreme-pressure additive and phenolic antioxidant are formed.The physicals of its physicals and composition of the present invention is similar.
The Falex oilness is estimated (GB/T0187-92)
This method is derived by ASTMD3233-86, and it is the standard method of measuring the fluid lubricant extreme pressure property, and it is that 0.5% diluent carries out that experimentation adopts stoste and concentration.Experimental result such as table 1.
Table 1 is held the Falex value of rolling oil
| Sample | State | ????Falex(N) |
| Embodiment 1 | Stoste | ????11120 |
| 0.5% solution | ????12899 | |
| Embodiment 2 | Stoste | ????11342 |
| 0.5% solution | ????13344 | |
| Composition B | Stoste | ????9786 |
| 0.5% solution | ????12010 |
By the Falex value shown in the table 1 as can be known, the Falex value of embodiment 1 and embodiment 2 stostes is greater than 11100N, is diluted to after 0.5% concentration all greater than 12800N, and its extreme pressure property all is better than composition B.MQ-800 four ball-joint loading capabilities are measured (GB/T3142-82)
Utilize this method to measure the oil film strength of lubricating oil.It is that 0.5% diluent carries out that experimentation adopts stoste and concentration.Experimental result such as table 2.
The oil film strength of table 2 hot-rolling oil
| Sample | State | PB value (N) |
| Embodiment 1 | Stoste | ????862 |
| 0.5% solution | ????745 | |
| Embodiment 2 | Stoste | ????902 |
| 0.5% solution | ????794 | |
| Composition B | Stoste | ????745 |
| 0.5% solution | ????647 |
As can be seen from Table 2, the oil film strength of embodiment 1 and embodiment 2 all is better than composition B.The demulsification performance test
The demulsification performance of hot-rolling oil in actual application reflects that directly hot-rolling oil is to the adhesive power of surface of steel plate size and to the pollution level of water coolant.In general, the resistance to emulsification of hot-rolling oil is poor more, and is more little to the adhesive power of steel plate, and oilness is poor more, and the pollution level to water coolant is strong more simultaneously, has a strong impact on normally carrying out of hot rolling production.The hot-rolling oil of good quality after high-speed stirring, is scattered in the water very equably, and few emulsification or emulsifying capacity are very weak.The demulsification performance testing method is as follows:
A: raw material: tap water hot-rolling oil to be measured
B: equipment: 300ml graduated cylinder water bath with thermostatic control
The constant speed stirrer stopwatch
C: experimental technique:
In the graduated cylinder of 300ml, prepare 200 grams respectively with tap water, 0.5% solution, place 54 ℃ respectively, in 82 ℃ the water bath with thermostatic control, constant temperature is after 10 minutes, stirs 5 minutes with 2000 rev/mins constant speed stirrer constant speed respectively, solution situation after visual inspection is stirred, the situation of solution and the situation of solution after 24 hours after 30 minutes.Shown in experimental result such as the table 3, table 4.
The demulsification performance of table 3 hot-rolling oil
| Sample | 54 ℃ stop to stir the back state | State after 30 minutes | State after 24 hours |
| Embodiment 1 | Profit separates rapidly, the water layer milky white | Water layer is translucent | Water layer is transparent, no emulsion layer |
| Embodiment 2 | Profit separates rapidly, the water layer milky white | Water layer is translucent | Water layer is transparent, no emulsion layer |
| Composition B | Profit separates rapidly, the water layer milky white | Water layer is translucent | Water layer is transparent, the slight emulsification of oil reservoir |
The demulsification performance of table 4 hot-rolling oil
| Sample | 82 ℃ stop to stir the back state | State after 30 minutes | State after 24 hours |
| Embodiment 1 | The profit sharp separation, the water layer milky white | Water layer is translucent, milky white | Water layer is transparent, no emulsion layer |
| Embodiment 2 | The profit sharp separation, the water layer milky white | Water layer is translucent, milky white | Water layer is transparent, no emulsion layer |
| Composition B | The profit sharp separation, the water layer milky white | Water layer is translucent, milky white | Water layer is transparent, the oil reservoir serious emulsification |
By table 3, table 4 as can be seen, embodiment 1, embodiment 2 has good demulsification performance, composition B (contrast sample) then shows relatively poor demulsification performance.
Claims (10)
1. lubricating oil composition for wide steel strip hot continuous mill rolling process, it is characterized in that: contain component (d) in the said composition, component (d) is to be that the upper layer kernel is the nano particle of titanium dioxide with dialkyl dithiophosphoric acid or mono carboxylic lipid acid, and the diameter of nano particle is 5～50nm.
2. lubricating oil composition for wide steel strip hot continuous mill rolling process according to claim 1 is characterized in that, the content of described component (d) is 1～8%.
3. lubricating oil composition for wide steel strip hot continuous mill rolling process according to claim 1 and 2 is characterized in that, the content of described component (d) is 3～5%.
4. lubricating oil composition for wide steel strip hot continuous mill rolling process according to claim 2 is characterized in that, said composition also contains following component:
(a) 45～80% base oil;
(b) 0.5～5% phosphoric acid ester;
(c) 10～40% animal-plant oil or synthetic ester;
(e) 0.5～5% rust-preventive agent;
(f) 0.2～0.5% oxidation inhibitor.
5. lubricating oil composition for wide steel strip hot continuous mill rolling process according to claim 4 is characterized in that, component (a) is neutral oil, mineral oil, locomotive oil or bright stock; Component (b) is one or more a composition in the nitrogen containing derivative of metal-salt, chloro phosphoric acid ester and phosphoric acid ester of phosphoric acid ester, phosphorous acid ester, thiophosphatephosphorothioate, thiophosphatephosphorothioate; Animal-plant oil described in the component (c) is Oleum Gossypii semen, peanut oil, rape seed oil, refining rape seed oil, refined soybean oil or prepared lard, and described synthetic ester is by C
12～C
18Lipid acid and the carboxylate that generates of polyvalent alcohol esterification; The upper layer of component (d) is octadecyl phosphorodithioic acid, oleic acid, linolic acid, isocaprylic acid, n-caprylic acid, enanthic acid, capric acid, palmitinic acid or coconut oil; Component (e) is one or more the composition in petroleum sodium sulfonate, barium mahogany sulfonate, dinonyl naphthalene sulfonate barium, zinc naphthenate and the dodecenylsuccinic acid; Component (f) is phenols or amine.
6. lubricating oil composition for wide steel strip hot continuous mill rolling process according to claim 4 is characterized in that: the synthetic ester described in the component (c) is oleic acid trihydroxymethylpropanyl ester, pentaerythritol oleate, coconut oil trihydroxymethylpropanyl ester or oleic acid DOPCP; Component (f) is 2.6-ditertbutylparacresol, phenyl-a-naphthylamine, N, and N`-two sec-butyls are to aniline or 4,4`-methylene radical-Lian 2,6-tert.-butyl phenol.
7. lubricating oil composition for wide steel strip hot continuous mill rolling process according to claim 4 is characterized in that: component (a) shared ratio in composition is 50～72%.
8. lubricating oil composition for wide steel strip hot continuous mill rolling process according to claim 4 is characterized in that: component (b) shared ratio in composition is 1～3%.
9. lubricating oil composition for wide steel strip hot continuous mill rolling process according to claim 4 is characterized in that: component (c) shared ratio in composition is 20～37%.
10. lubricating oil composition for wide steel strip hot continuous mill rolling process according to claim 4 is characterized in that: component (e) shared ratio in composition is 1～3%.
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| CN1298823C CN1298823C (en) | 2007-02-07 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100395322C (en) * | 2005-08-31 | 2008-06-18 | 中国石油化工股份有限公司 | Hot-rolled oil composition containing nano antiwear agent |
| CN100448963C (en) * | 2005-08-31 | 2009-01-07 | 中国石油化工股份有限公司 | Hot-rolled oil composition containing intercalation clay antiwear agent |
| CN102952611A (en) * | 2011-08-25 | 2013-03-06 | 中国石油化工股份有限公司 | Rolling oil composition for cold-rolled sheet |
| CN103013642A (en) * | 2013-01-05 | 2013-04-03 | 北京科技大学 | Water-based hot rolling liquid containing nano TiO2 and preparation method thereof |
| CN106967486A (en) * | 2017-04-12 | 2017-07-21 | 奎克化学（中国）有限公司 | One kind is applied to resistant to elevated temperatures rolling mill compound of Vertical Rolling and preparation method thereof |
| CN109135895A (en) * | 2018-10-09 | 2019-01-04 | 中国石油化工股份有限公司 | High lubricated hot rolling fluid composition and application thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1042949C (en) * | 1996-06-05 | 1999-04-14 | 中国石化兰州炼油化工总厂 | Lubricating oil compsn. |
| CN1108362C (en) * | 1998-12-25 | 2003-05-14 | 张祖良 | Water soluble lubricant for metal cold plasticity processing |
-
2002
- 2002-02-01 CN CNB021155186A patent/CN1298823C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100395322C (en) * | 2005-08-31 | 2008-06-18 | 中国石油化工股份有限公司 | Hot-rolled oil composition containing nano antiwear agent |
| CN100448963C (en) * | 2005-08-31 | 2009-01-07 | 中国石油化工股份有限公司 | Hot-rolled oil composition containing intercalation clay antiwear agent |
| CN102952611A (en) * | 2011-08-25 | 2013-03-06 | 中国石油化工股份有限公司 | Rolling oil composition for cold-rolled sheet |
| CN103013642A (en) * | 2013-01-05 | 2013-04-03 | 北京科技大学 | Water-based hot rolling liquid containing nano TiO2 and preparation method thereof |
| CN106967486A (en) * | 2017-04-12 | 2017-07-21 | 奎克化学（中国）有限公司 | One kind is applied to resistant to elevated temperatures rolling mill compound of Vertical Rolling and preparation method thereof |
| CN109135895A (en) * | 2018-10-09 | 2019-01-04 | 中国石油化工股份有限公司 | High lubricated hot rolling fluid composition and application thereof |
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| Publication number | Publication date |
|---|---|
| CN1298823C (en) | 2007-02-07 |
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