CN115851128B - Normal-temperature quick-drying wear-resistant lubricating coating slurry for bridge crane track - Google Patents
Normal-temperature quick-drying wear-resistant lubricating coating slurry for bridge crane track Download PDFInfo
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- CN115851128B CN115851128B CN202211565855.XA CN202211565855A CN115851128B CN 115851128 B CN115851128 B CN 115851128B CN 202211565855 A CN202211565855 A CN 202211565855A CN 115851128 B CN115851128 B CN 115851128B
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- 230000001050 lubricating effect Effects 0.000 title claims abstract description 49
- 238000001035 drying Methods 0.000 title claims abstract description 30
- 239000006255 coating slurry Substances 0.000 title claims abstract description 22
- 239000012767 functional filler Substances 0.000 claims abstract description 25
- 239000002904 solvent Substances 0.000 claims abstract description 19
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 18
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 239000000126 substance Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 15
- 239000013523 DOWSIL™ Substances 0.000 claims description 14
- 229920013731 Dowsil Polymers 0.000 claims description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- 239000012208 gear oil Substances 0.000 claims description 12
- -1 polytetrafluoroethylene Polymers 0.000 claims description 12
- 239000003054 catalyst Substances 0.000 claims description 10
- 239000000945 filler Substances 0.000 claims description 10
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 8
- 239000002808 molecular sieve Substances 0.000 claims description 8
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 239000002274 desiccant Substances 0.000 claims description 7
- 239000010720 hydraulic oil Substances 0.000 claims description 7
- 239000010439 graphite Substances 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 6
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 5
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 5
- ADJMNWKZSCQHPS-UHFFFAOYSA-L zinc;6-methylheptanoate Chemical group [Zn+2].CC(C)CCCCC([O-])=O.CC(C)CCCCC([O-])=O ADJMNWKZSCQHPS-UHFFFAOYSA-L 0.000 claims description 5
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 238000000227 grinding Methods 0.000 claims description 4
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 claims description 4
- 239000011787 zinc oxide Substances 0.000 claims description 4
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 239000011268 mixed slurry Substances 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims description 3
- OEOIWYCWCDBOPA-UHFFFAOYSA-N 6-methyl-heptanoic acid Chemical compound CC(C)CCCCC(O)=O OEOIWYCWCDBOPA-UHFFFAOYSA-N 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- 238000000576 coating method Methods 0.000 abstract description 22
- 239000011248 coating agent Substances 0.000 abstract description 20
- 238000002360 preparation method Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000007711 solidification Methods 0.000 abstract description 2
- 230000008023 solidification Effects 0.000 abstract description 2
- 238000005461 lubrication Methods 0.000 description 9
- 238000002156 mixing Methods 0.000 description 9
- 239000002131 composite material Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 6
- 238000011282 treatment Methods 0.000 description 6
- 239000000428 dust Substances 0.000 description 5
- 239000000314 lubricant Substances 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- ITRNXVSDJBHYNJ-UHFFFAOYSA-N tungsten disulfide Chemical compound S=[W]=S ITRNXVSDJBHYNJ-UHFFFAOYSA-N 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000002243 precursor Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005238 degreasing Methods 0.000 description 3
- 239000004519 grease Substances 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 238000005488 sandblasting Methods 0.000 description 3
- SDDGNMXIOGQCCH-UHFFFAOYSA-N 3-fluoro-n,n-dimethylaniline Chemical compound CN(C)C1=CC=CC(F)=C1 SDDGNMXIOGQCCH-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000001723 curing Methods 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 229910052816 inorganic phosphate Inorganic materials 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
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- 238000005260 corrosion Methods 0.000 description 1
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- 239000013527 degreasing agent Substances 0.000 description 1
- 238000005237 degreasing agent Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
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- 239000003292 glue Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- QLOAVXSYZAJECW-UHFFFAOYSA-N methane;molecular fluorine Chemical compound C.FF QLOAVXSYZAJECW-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- MHWZQNGIEIYAQJ-UHFFFAOYSA-N molybdenum diselenide Chemical compound [Se]=[Mo]=[Se] MHWZQNGIEIYAQJ-UHFFFAOYSA-N 0.000 description 1
- 239000002113 nanodiamond Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
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- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
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Landscapes
- Lubricants (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses normal-temperature quick-drying wear-resistant lubricating coating slurry for bridge crane tracks, which is prepared from the following raw materials in percentage by mass: 15-45% of wear-resistant functional filler, 12-30% of lubricating functional filler, 10-30% of film forming substance, 5-20% of auxiliary agent and 5-20% of solvent. The coating provided by the invention has the characteristics of normal-temperature solidification and quick drying, and can be put into use in a very short time; the wear resistance and the lubricity are excellent; the coating preparation process is simple and easy to realize industrialized production.
Description
Technical Field
The invention belongs to the technical field of rail lubrication, and particularly relates to normal-temperature quick-drying wear-resistant lubricating coating slurry for a bridge crane rail.
Background
Bridge cranes (e.g., gantry cranes) and similar rail handling equipment are used primarily for outdoor yard, stock yard cargo, bulk handling operations. Because the bridge crane is heavy, the large friction generated by the wheels and the steel rails is very easy to generate during operation, so that the wheels and the rails are worn, and potential safety hazards such as wheel deviation, derailment and the like are generated. Currently, the method for solving the problems is to frequently replace the wheels and the rails, which greatly increases the production cost and reduces the production efficiency.
The bridge crane lubrication can reduce mechanical abrasion and prolong the service life of parts; good running performance of the equipment is maintained, such as the phenomenon that rotating parts such as a pin shaft are blocked, the bearing is burnt out and the like are avoided; lubrication reduces friction, improves production efficiency, and reduces kinetic energy consumption; the temperature of the friction surface is reduced, and overheat damage of the friction surface is avoided; rust and corrosion are prevented; sealing and dust prevention.
Although the conventional lubricating oil and lubricating grease have excellent lubricating property, the rail of the bridge crane is exposed to the open air for a long time, the use environment is exposed to wind, sun, rain and sun, and dust pollution is large, and the lubricating grease of the conventional lubricating oil is easy to fall off and rapidly oxidize and deteriorate. Conventional lubricating oils and greases are therefore not suitable for wear lubrication of gantry crane tracks. Meanwhile, due to the characteristics of huge equipment size, inconvenient maintenance and the like of the bridge crane, no technology capable of meeting the requirements of the gantry crane track on wear resistance and lubrication for the whole life through one-time surface treatment exists at present. Secondly, when the bridge crane runs, a wear-resistant lubricating coating can be tracked and coated on the track through the oil sprayer device, and the coating is rapidly solidified to form a film, so that the wear-resistant lubricating requirement of the bridge crane track can be met, and the replacement period of the track and the wheels is prolonged.
There are many documents to study rail lubricants, for example: patent document CN103952692a discloses a tungsten disulfide self-lubricating composite coating and a preparation method thereof, comprising the following steps of 1) preparing a precursor liquid of a bonding solid lubricating coating: dispersing tungsten disulfide, tungsten selenide and graphite composite solid lubricant into adhesive (vinyl ester resin) glue solution to form adhesive solid lubricating coating precursor solution; the weight ratio of the three components composing the composite solid lubricant is as follows: 70% -75% of tungsten disulfide, 15% -20% of tungsten selenide and 5% -10% of graphite; the weight ratio of each component in the total amount of the precursor liquid is as follows: 10-15% of binder and 85-90% of composite solid lubricant; 2) Preparing a solid lubrication composite coating: and (3) after derusting, degreasing and sand blasting the surface of the metal track, spraying the precursor liquid in the step (1) onto the surface of a substrate, and then performing heat curing treatment to form the tungsten disulfide self-lubricating composite coating. However, the composite coating in the document is used for home decoration building rails such as sliding doors and windows, the metal rails need to be subjected to strict rust removal, degreasing and sand blasting treatment, and the coating needs to be heated to be solidified so as to have a lubricating effect, so that the practical application requirements of heavy load, dustiness, no-rail substrate treatment and huge size of the gantry crane rails cannot be met.
Document CN110028852a discloses an organic-inorganic composite lubrication protective coating material with excellent space environment resistance, which is prepared by ball milling and dispersing uniformly, wherein inorganic phosphate modified by polytetrafluoroethylene emulsion is used as a binder, lamellar dichalcogenide is used as a solid lubricant, antimony trioxide and rare earth fluoride are used as auxiliary functional fillers, and water is used as a diluent; the raw materials comprise the following components: 10.0 to 25.0 percent of inorganic phosphate modified by polytetrafluoroethylene emulsion, 7.2 to 25.0 percent of lamellar dithio compound, 4.2 to 15.0 percent of antimonous oxide, 0.5 to 5.8 percent of rare earth fluoride and the balance of water. However, the document requires surface treatments such as degreasing, rust removal, sand blasting, ultrasonic treatment and the like on the surface of the part in advance, the sprayed part is placed at room temperature for 3-6 hours for surface drying, and the part is placed in a blast oven for curing, wherein the curing conditions are as follows: keeping the temperature at 120+/-5 ℃ for 2 hours; and the temperature is kept at 310+/-5 ℃ for 1h. Therefore, the method can not meet the practical application requirements of heavy load, dustiness, no-track substrate treatment and huge size, and can not be heated.
Patent document CN103214920a discloses an antifriction coating for an automatic door screw, having a flash point of 110 ℃, a specific gravity of 1200±60 g/liter, composed of 1 to 6% of molybdenum disulfide, 10 to 28% of graphite, 1 to 3% of graphite fluoride, 2 to 8% of tungsten disulfide, 0 to 3% of molybdenum diselenide other than zero, 1 to 3% of nanodiamond, 1 to 5% of silicon nitride, 2 to 8% of aluminum oxide, 0 to 3% of silicon dioxide other than zero, 0 to 2% of antimony trioxide other than zero, 3 to 15% of silicon carbide, 0 to 1.5% of carbon nanotubes other than zero, 10 to 16% of polyester resin, 15 to 30% of epoxy resin, 6 to 20% of acrylic resin, and 0 to 8% of powder surface treating agent other than zero. However, the document requires the adoption of a neutral high-efficiency degreasing agent, so that various grease, dust, oil stains and garbage on the metal surface of the automatic door screw in the machining process are thoroughly removed, the workpiece surface is dried by high-pressure oil-free high-pressure gas after the cleaning by water; after 1 minute, washing with deionized water and drying with hot air; then, spraying antifriction coating paint; finally, the antifriction coating on the metal surface of the screw rod of the automatic door is sintered at a high temperature, and the sintering temperature is controlled to be 220-260 ℃. Meanwhile, this document uses a conventional organic resin, and thus the coating layer does not have heavy load resistance. Therefore, the antifriction coating in the document has very high requirements on substrate treatment, film formation is cured at high temperature, and the actual application requirements of heavy load, dustiness, no-track substrate treatment and huge size, which cannot be heated, of the gantry crane track cannot be met.
In order to solve the problems, development of a coating slurry with excellent normal-temperature quick-drying wear resistance and lubricating property is urgently needed, but the existing wear-resistant lubricating coating cannot meet the requirements at the same time.
Disclosure of Invention
The invention aims to provide normal-temperature quick-drying wear-resistant lubricating coating slurry for bridge crane rails, which has the characteristics of normal-temperature solidification and quick drying, can be put into use in a very short time, has excellent wear resistance and lubricating property, and solves the problem that the conventional wear-resistant lubricating technology cannot meet the use requirements of bridge crane rails.
In order to achieve the purpose of the invention, the technical scheme of the invention is as follows:
the invention discloses normal-temperature quick-drying wear-resistant lubricating coating slurry for bridge crane tracks, which is characterized by being prepared from the following raw materials in parts by mass: 15-45% of wear-resistant functional filler, 12-30% of lubricating functional filler, 10-30% of film forming substance, 5-20% of auxiliary agent and 5-20% of solvent;
one or more of aluminum powder, iron powder, zinc oxide and aluminum oxide serving as wear-resistant functional fillers;
the lubricating function filler is at least one of molybdenum disulfide, graphite, polytetrafluoroethylene, ultra-high molecular weight polyethylene or polysiloxane;
the film forming material is at least one of No. 100 gear oil, no. 150 gear oil, no. 320 gear oil, L-HL hydraulic oil or L-HM hydraulic oil;
the auxiliary agent is one or more of a drying agent and a catalyst; the drying agent is one or more of zinc isooctanoate and cobalt isooctanoate, and the catalyst is one or more of a 5A molecular sieve and a ZSM-5 molecular sieve;
the solvent is at least one of small molecular alcohol with 2-5 carbon atoms and quick-drying naphtha DOWSIL OS-10, DOWSIL OS-20 and DOWSIL OS-30, preferably at least one of ethanol, isopropanol, isobutanol and DOWSIL OS-20.
The invention relates to a preparation method of normal-temperature quick-drying wear-resistant lubricating coating slurry for bridge crane rails, which is characterized by comprising the following steps of: slowly adding the wear-resistant functional filler, the high Wen Gongneng-resistant filler, the auxiliary agent and the film forming material into the solvent, and stirring to uniformly disperse the materials; then, the mixed slurry is put into a grinder for fineness grinding; and filtering to obtain the lubricating coating slurry.
The normal-temperature quick-drying wear-resistant lubricating coating slurry for the bridge crane rail is prepared by spraying the lubricating coating slurry on the surface of a base material when the lubricating coating slurry is used.
Compared with the prior art, the invention has the advantages that:
the coating slurry provided by the invention has normal-temperature quick-drying property, can be put into use in a very short time, and has excellent wear resistance and lubricity; the environmental adaptability is good, and the heavy load and dust resistance are realized; the preparation process is simple and easy to realize industrialized production.
Detailed Description
It will be appreciated by persons skilled in the art that the present embodiment is provided for illustration only and not for limitation of the invention, and that modifications and variations may be made to the embodiment within the scope of the invention as defined in the appended claims.
Example 1
The normal-temperature quick-drying wear-resistant lubricating coating slurry for the bridge crane track is prepared from the following raw materials in percentage by mass: 30% of wear-resistant functional filler, 15% of lubricating functional filler, 20% of film forming substance, 15% of auxiliary agent and 20% of solvent; wherein the wear-resistant functional filler is prepared from aluminum powder and iron powder according to the mass ratio of 1:2, mixing; the lubricating function filler is prepared from molybdenum disulfide and graphite according to the mass ratio of 3:1, mixing; the auxiliary agent is prepared from zinc isooctanoate and a catalyst 5A molecular sieve according to the mass ratio of 1:1, the composition is as follows; the film forming material is No. 100 gear oil; the solvent is ethanol and quick-drying naphtha DOWSIL OS-10 according to the mass ratio of 1: 5.
The preparation method comprises the following steps: slowly adding the wear-resistant functional filler, the high Wen Gongneng-resistant filler, the auxiliary agent and the film forming material into the solvent, and stirring to uniformly disperse the materials; then, the mixed slurry is put into a grinder for grinding until the fineness is not more than 20 mu m; and after finishing grinding, filtering the slurry to obtain the lubricating coating slurry. When in use, the lubricating slurry is sprayed on the surface of the base material.
Table 1 raw material compositions of examples 1 to 4 and comparative examples 1 to 3%
Example 2
The normal-temperature quick-drying wear-resistant lubricating coating slurry for the bridge crane track is prepared from the following raw materials in percentage by mass: 40% of wear-resistant functional filler, 15% of lubricating functional filler, 20% of film forming substance, 15% of auxiliary agent and 10% of solvent; wherein the wear-resistant functional filler is aluminum oxide; the lubricating function filler is molybdenum disulfide; the auxiliary agent consists of drying agent zinc isooctanoate and catalyst ZSM-5 molecular sieve according to the mass ratio of 1:2, composing; the film forming material is No. 100 gear oil and No. 320 gear oil according to the mass ratio of 1:2, mixing; the solvent consists of ethanol. The preparation method is the same as in example 1.
Example 3
The normal-temperature quick-drying wear-resistant lubricating coating slurry for the bridge crane track is prepared from the following raw materials in percentage by mass: 20% of wear-resistant functional filler, 25% of lubricating functional filler, 30% of film forming substance, 5% of auxiliary agent and 20% of solvent; wherein the wear-resistant functional filler is prepared from aluminum powder, iron powder and zinc oxide according to the mass ratio of 1:1:1, mixing; the lubricating function filler is prepared from polytetrafluoroethylene and ultra-high molecular weight polyethylene according to a mass ratio of 2:1, mixing; the auxiliary agent is a catalyst 5A molecular sieve; the film forming material is formed by mixing hydraulic oil L-HL and hydraulic oil L-HM according to a mass ratio of 1:1; the solvent is prepared from butanol and quick-drying naphtha DOWSIL OS-30 according to a mass ratio of 1: 2. The preparation method is the same as in example 1.
Example 4
The normal-temperature quick-drying wear-resistant lubricating coating slurry for the bridge crane track is prepared from the following raw materials in percentage by mass: 35% of wear-resistant functional filler, 20% of lubricating functional filler, 25% of film forming material, 10% of auxiliary agent and 10% of solvent; wherein the wear-resistant functional filler is prepared from iron powder, zinc oxide and aluminum oxide according to the mass ratio of 1:2:3, mixing; the lubricating function filler is prepared from molybdenum disulfide, polysiloxane and polytetrafluoroethylene according to a mass ratio of 3:1:2, mixing; the auxiliary agent comprises drying agent zinc isooctanoate and catalyst 5A, ZMS-5 molecular sieve according to mass ratio of 1:1:1, the composition is as follows; the film forming material is No. 100 gear oil and hydraulic oil (L-HL) according to the mass ratio of 1:2, mixing; the solvent comprises the following components of fast drying naphtha DOWSIL OS-10, fast drying naphtha DOWSIL OS-20 and fast drying naphtha DOWSIL OS-30 according to the mass ratio of 1:1: 1.
Comparative example 1
The procedure of example 1 was repeated except that the gear oil No. 100 was replaced with a conventional epoxy resin.
Comparative example 2
The procedure of example 1 was repeated except that the solvent ethanol and the flash naphtha DOWSIL OS-10 (mass ratio: 1:5) were all changed to butyl acetate.
Comparative example 3
The addition amount of the auxiliary agent (drying agent, catalyst) was reduced to 0 as compared with example 1, and the other steps were the same as in example 1.
Comparative example 4
The process was similar to example 1 except that the abrasion-resistant filler was replaced with ordinary talc powder as in example 1.
The wear-resistant lubricating coatings prepared in examples 1 to 4 and comparative examples 1 to 4 were coated on rails by spraying with an oil sprayer, and formed into films at normal temperature. The coatings were then subjected to performance testing, the results of which are shown in table 2:
TABLE 2 results of coating film Performance test of examples 1 to 4 and comparative examples 1 to 4
As can be seen from Table 2, the invention adopts gear oil, dry catalyst auxiliary agent, quick-drying solvent and wear-resistant lubricating filler in the formula, thus greatly accelerating the drying speed of the coating while ensuring the coating to have better wear-resistant lubrication, and realizing the wear resistance and lubricity of the coating at room temperature, thereby realizing the requirements of the gantry crane on track wear resistance, lubrication, heavy load resistance, dust resistance and outdoor use.
Claims (3)
1. The normal-temperature quick-drying wear-resistant lubricating coating slurry for the bridge crane rail is characterized by being prepared from the following raw materials in percentage by mass: 15-45% of wear-resistant functional filler, 12-30% of lubricating functional filler, 10-30% of film forming substance, 5-20% of auxiliary agent and 5-20% of solvent;
one or more of aluminum powder, iron powder, zinc oxide and aluminum oxide serving as wear-resistant functional fillers; the lubricating function filler is at least one of molybdenum disulfide, graphite, polytetrafluoroethylene, ultra-high molecular weight polyethylene or polysiloxane; the film forming material is at least one of No. 100 gear oil, no. 150 gear oil, no. 320 gear oil, L-HL hydraulic oil or L-HM hydraulic oil; the auxiliary agent is one or more of a drying agent and a catalyst; the drying agent is zinc isooctanoate or/and cobalt isooctanoate, and the catalyst is a 5A molecular sieve or/and ZSM-5 molecular sieve; the solvent is at least one of small molecular alcohol with 2-5 carbon atoms, DOWSIL OS-10, DOWSIL OS-20 and DOWSIL OS-30.
2. The room temperature quick-drying wear-resistant lubricating coating slurry according to claim 1, wherein the solvent is at least one of ethanol, isopropanol, isobutanol, and DOWSIL OS-20.
3. The method for preparing the normal-temperature quick-drying wear-resistant lubricating coating slurry according to claim 1 or 2, comprising the following steps: slowly adding the wear-resistant functional filler, the lubricating functional filler, the auxiliary agent and the film-forming substance into the solvent, and stirring to uniformly disperse the materials; then, the mixed slurry is put into a grinder for fineness grinding; filtering to obtain the normal-temperature quick-drying wear-resistant lubricating coating slurry.
Priority Applications (1)
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