CN104059514A - Self lubricating treatment agent combination and hot aluminized sheet zinc and preparation method thereof - Google Patents
Self lubricating treatment agent combination and hot aluminized sheet zinc and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a self lubricating treatment agent composition, and the composition contains water, sodium silicate, a lubricant, an inorganic inhibitor, a silane coupling agent and organic resin. The invention also provides a hot aluminized sheet zinc, the hot aluminized sheet zinc comprises a hot aluminized sheet zinc substrate and a coating attached to the surface of the substrate, and the coating is formed by the self lubricating treatment agent composition. In addition, the invention also provides a preparation method of the hot aluminized sheet zinc, and the method comprises the following steps: the self lubricating treatment agent composition is prepared into a coating liquid, and the coating fluid coats the hot aluminized sheet zinc substrate, and then cured. The coating formed by curing of the self lubricating treatment agent composition has good corrosion resistance, heat resistance, water resistance and adsorption, and is especially outstanding in self lubricity.
Description
Technical field
The present invention relates to the agent of a kind of hot-dip aluminizing zinc self-lubrication treatment and hot dip aluminum zinc plate and preparation method thereof.
Background technology
In recent years, along with improving constantly and the needs in market of technology, hot dip aluminum zinc plate has obtained developing rapidly because of its good characteristic such as solidity to corrosion, decorative appearance.Hot dip aluminum zinc plate Application Areas at home is mainly building and regulator cubicle production: its application in construction industry is taking thin specification as main, mainly as precoated substrate; It taking thick specification as main, is mainly directly as cabinet in the manufacturing application of regulator cubicle.At present, the Application Areas of hot dip aluminum zinc plate is significantly being expanded with plate field to household electrical appliances, automobile.But great majority need be through stamping in the user such as household electrical appliances, automobile industry use procedure for hot dip aluminum zinc plate.Due to the friction between mould and steel plate, in the time being shaped, easily there is the problem such as dry linting, black change in coating, not only affect visual appearance, solidity to corrosion, coating of forming part etc., and can aggravate the wearing and tearing of mould, reduce its work-ing life, and the performance such as the solidity to corrosion of existing hot dip aluminum zinc plate, anti-finger printing, thermotolerance still needs further to be improved.Therefore, need badly exploitation a kind of containing chromium, moiety is half organically, has a self-lubrication treatment agent taking hot-dip aluminizing zincium steel plate as base material of good solidity to corrosion, thermotolerance, water tolerance, adsorptivity, film-forming properties, oilness.
Summary of the invention
The object of this invention is to provide a kind of containing chromium, moiety is half organically, has the self-lubrication treatment agent composition of good solidity to corrosion, thermotolerance, water tolerance, adsorptivity, film-forming properties and oilness, and uses said composition as hot dip aluminum zinc plate of coating and preparation method thereof.
To achieve these goals, the invention provides a kind of self-lubrication treatment agent composition, wherein, said composition contains water, water glass, lubricant, inorganic inhibitor, silane coupling agent and organic resin.
The present invention also provides a kind of hot dip aluminum zinc plate, and this hot dip aluminum zinc plate comprises hot-dip aluminizing zinc plate substrate and be attached to the coating on substrate surface, and wherein, described coating is formed by self-lubrication treatment agent composition provided by the present invention.
The present invention also provides a kind of preparation method of hot dip aluminum zinc plate, and the method comprises: self-lubrication treatment agent composition provided by the present invention is mixed with to coating fluid, described coating fluid is coated on hot-dip aluminizing zinc plate substrate, be then cured.
By technique scheme, the invention provides a kind of self-lubrication treatment agent composition and there is the preparation method of hot dip aluminum zinc plate and this aluminium zine plate of good self lubricity.
Self-lubrication treatment agent composition provided by the present invention is owing to not containing heavy metal chromium, so there is the feature of Environmental Safety, in addition, the moiety of self-lubrication treatment agent composition provided by the present invention is half organic composition, the coating forming after solidifying has good solidity to corrosion, thermotolerance, water tolerance, tack and film-forming properties, and self lubricity is excellent especially.
Other features and advantages of the present invention are described in detail the embodiment part subsequently.
Embodiment
Below the specific embodiment of the present invention is elaborated.Should be understood that, embodiment described herein only, for description and interpretation the present invention, is not limited to the present invention.
The invention provides a kind of self-lubrication treatment agent composition, wherein, said composition contains water, water glass, lubricant, inorganic inhibitor, silane coupling agent and organic resin.
The present invention has no particular limits the content of above each material, can realize object of the present invention as long as contain above material in composition.Preferably, taking the water of 100 weight parts as benchmark, the content of described water glass is 0.5-10 weight part; The content of described lubricant is 5-30 weight part; The content of described inorganic inhibitor is 0.1-5 weight part; The content of described silane coupling agent is 2-20 weight part; The content of described organic resin is 1-50 weight part.
Under preferable case, taking the water of 100 weight parts as benchmark, the content of described water glass is 4-8 weight part; The content of described lubricant is 10-25 weight part; The content of described inorganic inhibitor is 1.5-4 weight part; The content of described silane coupling agent is 8-16 weight part; The content of described organic resin is 15-45 weight part.
According to self-lubrication treatment agent composition of the present invention, wherein, described lubricant can be at least one in water-base fluorocarbon emulsion, silicone oil emulsion, polythene wax emulsion, tetrafluoroethylene wax emulsion and carnauba wax emulsion, in order further to improve self-lubricating property, described lubricant is preferably at least one in water-base fluorocarbon emulsion, polythene wax emulsion and tetrafluoroethylene wax emulsion.
According to self-lubrication treatment agent composition of the present invention, wherein, described organic resin can be at least one in water-borne acrylic resin, water-based styrene-acrylic resin, resol resins, waterborne polyurethane resin, waterborne organic silicon resin and aqueous epoxy resins, in order further to improve coating performance, described organic resin is preferably at least one in water-borne acrylic resin, water-based styrene-acrylic resin and aqueous polyurethane.
According to self-lubrication treatment agent composition of the present invention, wherein, described inorganic inhibitor can be at least one in potassium permanganate, disodium-hydrogen, Sodium Nitrite, tripoly phosphate sodium STPP, zinc sulfate and Sodium orthomolybdate.In order further to improve corrosion resisting property, described inorganic inhibitor is preferably at least one in Sodium Nitrite, Sodium orthomolybdate and potassium permanganate.
According to self-lubrication treatment agent composition of the present invention, wherein, described silane coupling agent can be at least one in γ-aminopropyl triethoxysilane (KH550), γ-glycidyl ether oxygen propyl trimethoxy silicane (KH560), γ-methacryloxypropyl trimethoxy silane (KH570), γ-mercaptopropyl trimethoxysilane (KH590), vinyltrimethoxy silane (KH171) and N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane (KH792).
According to self-lubrication treatment agent composition of the present invention, wherein, in order further to improve the performance of described self-lubrication treatment agent composition, described raw mixture can also contain auxiliary agent.Wherein, under preferable case, with respect to the water of 100 weight parts, the consumption of described auxiliary agent is 0.1-2 weight part, more preferably 0.3-1 weight part.
The present invention has no particular limits the kind of described auxiliary agent, as long as can realize object of the present invention.The present inventor's discovery, in the time that described auxiliary agent is at least one in tensio-active agent, flow agent and defoamer, the as above performance of composition provided by the invention can be further enhanced.
Wherein, in described auxiliary agent, the selection of tensio-active agent, flow agent and defoamer can be conventional selection, the present invention does not have special requirement, for example, described tensio-active agent can be at least one in alkylphenol polyoxyethylene (OP-10), Sodium dodecylbenzene sulfonate and sodium lauryl sulphate; Described flow agent can be urethane flow agent; Described defoamer can be Polyether Modified Polysiloxanes Defoaming Agent.
Wherein, in described auxiliary agent, with respect to the water with 100 weight parts, in auxiliary agent, the content of flow agent can be that the content of 0.05-1 weight part, tensio-active agent can be 0.03-0.5 weight part for the content of 0.02-0.5 weight part, defoamer.
According to self-lubrication treatment agent composition of the present invention, wherein, in particularly preferred situation, lubricant is water-base fluorocarbon emulsion and/or polythene wax emulsion; Described silane coupling agent is at least one in γ-aminopropyl triethoxysilane, γ-glycidyl ether oxygen propyl trimethoxy silicane and γ-methacryloxypropyl trimethoxy silane; Described inorganic inhibitor is Sodium Nitrite and/or Sodium orthomolybdate; Described organic resin is water-borne acrylic resin and/or aqueous polyurethane.Under this preferable case, after described self-lubrication treatment agent composition solidifies at 80-110 DEG C, the coating of gained has outstanding solidity to corrosion, thermotolerance, water tolerance, adsorptivity, film-forming properties, and its self-lubricating property is excellent especially.
Wherein, said composition obtains for after each composition is mixed.Under preferable case, the each component in described composition mixes the composition that obtains liquid form before use for 2-60 days at this self-lubrication treatment agent composition.Wherein, the order by merging of each composition is not had to special requirement, can directly the each component in described raw mixture be carried out simultaneously, mix in batches or step by step, as long as can obtain uniform stable phase, preferably make to mix more even by stirring.
The discovery that the present inventor is surprised, the self-lubrication treatment agent composition that above each material is mixed with according to ratio as above can also effectively improve rate of film build, film formation time is shortened greatly, thereby effectively provide production efficiency.
The present invention also provides a kind of hot dip aluminum zinc plate, and this hot dip aluminum zinc plate comprises hot-dip aluminizing zinc plate substrate and be attached to the coating on substrate surface, and wherein, described coating is formed by self-lubrication treatment agent composition of the present invention.
According to hot dip aluminum zinc plate of the present invention, wherein, the thickness of described coating can be 0.05-0.3 micron.
According to hot dip aluminum zinc plate of the present invention, wherein, described coating is that described self-lubrication treatment agent composition is attached on described hot-dip aluminizing zinc plate substrate, and is 80-110 DEG C and set time to solidify and obtain under the condition of cure that is 10-60s in solidification value.
The present inventor finds, the pH value of self-lubrication treatment agent composition provided by the invention is between 7-12, it is specially adapted to hot dip aluminum zinc plate, in the time that self-lubrication treatment agent composition of the present invention is coated on hot dip aluminum zinc plate, the solidity to corrosion of the coating of described combination physical property, thermotolerance, water tolerance, adsorptivity, film-forming properties, its self-lubricating property can be further enhanced.
The present invention also provides a kind of preparation method of hot dip aluminum zinc plate, and the method comprises: self-lubrication treatment agent composition of the present invention is mixed with to coating fluid, described coating fluid is coated on hot-dip aluminizing zinc plate substrate, be then cured.
According to the preparation method of hot dip aluminum zinc plate of the present invention, wherein, the hot dip aluminum zinc plate substrate surface with respect to every square metre, it is 0.05-0.3 micron that the consumption of described self-lubrication treatment agent makes the thickness of the coating forming on described hot-dip aluminizing zinc plate substrate.
According to the preparation method of hot dip aluminum zinc plate of the present invention, wherein, described curing temperature and time those skilled in the art can adjust according to practical situation, and preferably, described curing temperature is 80-110 DEG C, and the time is 10-60s.
Wherein, the method of described coating can adopt this area routine for form the coating process of coating on metal sheet, for example, described self-lubricating agent composition roller coat can be coated in to the surface of described hot-dip aluminizing zinc plate substrate, or described self-lubricating agent composition is sprayed to the surface at described hot-dip aluminizing zinc plate substrate.
Wherein, to the temperature of described self-lubricating agent composition coating, the present invention has no particular limits, those skilled in the art can described self-lubricating agent composition do not freeze or the temperature range of vaporization in select voluntarily, for example, can be 5-40 DEG C.
Wherein, described curing type of heating, can be one or more in Hot-blast Heating, induction heating and infrared radiation heating.Under preferable case, can use the curing oven on hot-dip aluminizing zinc wire to carry out.
The present invention also provides the hot dip aluminum zinc plate preparing according to the preparation method of hot dip aluminum zinc plate as above.
Below will describe the present invention by embodiment.
Reagent used in following examples and comparative example is all commercially available.In the situation that not specializing, described reagent is analytical pure.
Embodiment 1-10 and comparative example 1-5
The component concentration of listing according to table 1 mixes each component under agitation condition, obtains respectively self-lubricating agent composition embodiment 1-10 and comparative example 1-5.
Table 1
| Water glass | Lubricant | Inorganic inhibitor | Silane coupling agent | Organic resin | Auxiliary agent | Water | |
| Embodiment 1 | 5.0 | 20 | 3 | 12 | 30 | 0.3 | 100 |
| Embodiment 2 | 4.0 | 10 | 4 | 8 | 45 | 0.8 | 100 |
| Embodiment 3 | 8.0 | 25 | 1.5 | 16 | 15 | 0.6 | 100 |
| Embodiment 4 | 0.5 | 5 | 5 | 20 | 1 | 2 | 100 |
| Embodiment 5 | 10.0 | 30 | 0.1 | 2 | 50 | 0.2 | 100 |
| Embodiment 6 | 5.0 | 20 | 3 | 12 | 30 | 0 | 100 |
| Comparative example 1 | 5.0 | 0 | 3 | 12 | 30 | 0.3 | 100 |
| Comparative example 2 | 5.0 | 20 | 0 | 12 | 30 | 0.3 | 100 |
| Comparative example 3 | 5.0 | 20 | 3 | 0 | 30 | 0.3 | 100 |
| Comparative example 4 | 5.0 | 20 | 3 | 12 | 0 | 0.3 | 100 |
| Comparative example 5 | 0 | 20 | 3 | 12 | 30 | 0.3 | 100 |
| Embodiment 7 | 5.0 | 20 | 3 | 12 | 30 | 0.3 | 100 |
| Embodiment 8 | 5.0 | 20 | 3 | 12 | 30 | 0.3 | 100 |
| Embodiment 9 | 5.0 | 20 | 3 | 12 | 30 | 0.3 | 100 |
| Embodiment 10 | 5.0 | 20 | 3 | 12 | 30 | 0.3 | 100 |
In embodiment 1-10 and comparative example 1-5, the concrete selection of each component is as follows:
Lubricant is water-base fluorocarbon emulsion and polythene wax emulsion (the two weight ratio is 7:3), inorganic inhibitor is Sodium Nitrite and Sodium orthomolybdate (the two weight ratio is 3:2), the KH560 that silane coupling agent is selected, organic resin is aqueous polyurethane and water-based styrene-acrylic resin (the two weight ratio is 4:1), in auxiliary agent, be flow agent, tensio-active agent, defoamer (three's weight ratio is 3:1:1), wherein tensio-active agent is OP-10, and flow agent is urethane flow agent; Defoamer is Polyether Modified Polysiloxanes Defoaming Agent.
In embodiment 7, as different from Example 1, lubricant is carnauba wax emulsion.
In embodiment 8, as different from Example 1, inorganic inhibitor is tripoly phosphate sodium STPP and potassium permanganate (the two weight ratio is 1:1).
In embodiment 9, as different from Example 1, the KH171 that silane coupling agent is selected.
In embodiment 10, as different from Example 1, organic resin is water-borne acrylic resin and resol resins (the two weight ratio is 7:3).
Preparation example
By the composition of embodiment 1-10 and comparative example 1-5 respectively roller coat be coated on hot-dip aluminizing zinc steel band, in the solidification values of 100 DEG C (adopting thermometric test paper to measure solidification value), the lower 25s of solidifying obtains respectively the hot dip aluminum zinc plate 1-10 that contains passivating coating, and hot dip aluminum zinc plate D1-D5.
Test case
This test case is measured solidity to corrosion, thermotolerance, water tolerance, tack and the self lubricity of the coating of hot dip aluminum zinc plate 1-10 and D1-D5.The results are shown in Table 2.
Wherein, solidity to corrosion is carried out corrosion test according to the method specifying in GB/T10125-1997 and condition, then according to the regulation of GB12335-90, Corrosion results is evaluated to (per-cent that accounts for the total area with the corroded area after 72 hours represents).Wherein, corroded area is the smaller the better.
Thermotolerance is judged according to the variation of sample 20min under 300 DEG C of conditions; If the variation of front and back aberration is less than 4, and the phenomenon such as rete does not occur bubble, comes off, dry linting, be A level; If the variation of front and back aberration is greater than 4, be less than 8, and the phenomenon such as rete does not occur bubble, comes off, dry linting, be B level; If the variation of front and back aberration is greater than 8, and the phenomenon such as rete does not occur bubble, comes off, dry linting, be C level.
Water tolerance is to adopt 100 DEG C of deionized water drop to measure in sample; If the complete anhydrous mark of sample is A level; Having slight water mark, is B level; Obviously water mark, is C level.
Tack according to 180 ° of bendings of sample after the dry linting deciding degree that comes off of coating; If the phenomenons such as coming off does not appear in coating, dry linting are A level; If occur dry linting but do not occur obscission, it is B level; If there is obscission, it is C level.
Self lubricity is according to the frictional coefficient judgement of coatingsurface, and wherein frictional coefficient is less, and self lubricity is better.
Table 2
| Solidity to corrosion/% | Thermotolerance | Water tolerance | Tack | Self lubricity | |
| Embodiment 1 | 1 | A | A | A | 0.09 |
| Embodiment 2 | 1 | A | A | A | 0.14 |
| Embodiment 3 | 2 | A | B | A | 0.10 |
| Embodiment 4 | 10 | B | B | B | 0.15 |
| Embodiment 5 | 10 | B | A | A | 0.11 |
| Embodiment 6 | 2 | A | B | B | 0.12 |
| Embodiment 7 | 1 | A | A | A | 0.15 |
| Embodiment 8 | 5 | A | B | A | 0.13 |
| Embodiment 9 | 5 | A | A | A | 0.13 |
| Embodiment 10 | 4 | B | A | A | 0.14 |
| Comparative example 1 | 2 | A | A | A | 0.30 |
| Comparative example 2 | 20 | C | B | A | 0.13 |
| Comparative example 3 | 15 | C | A | A | 0.13 |
| Comparative example 4 | 20 | B | C | C | 0.15 |
| Comparative example 5 | 15 | A | B | A | 0.12 |
By the data of table 2, by the contrast of embodiment 1-10 and comparative example 1-5, can find out, the coating that self-lubricating agent composition provided by the invention obtains under solidifying is taken into account the performances such as good solidity to corrosion, thermotolerance, water tolerance, adsorptivity and self lubricity simultaneously.
Especially, by the contrast of embodiment 1 and embodiment 4-6, can find, at the preferred water with respect to 100 weight parts, the content of described water glass is 4-8 weight part; The content of described lubricant is 10-25 weight part; The content of described inorganic inhibitor is 1.5-4 weight part; The content of described silane coupling agent is 8-16 weight part; The content of described organic resin is 15-45 weight part, and in the situation that contains auxiliary agent, described coating has outstanding solidity to corrosion, thermotolerance, water tolerance, self lubricity.
Especially, by the contrast of embodiment 1 and embodiment 7-10, can find, the kind of each component is controlled in the situation of the preferred kind of the present invention, after described self-lubrication treatment agent composition solidifies at 80-110 DEG C, the coating of gained has outstanding tack, solidity to corrosion, thermotolerance, water tolerance and adsorptivity, and its self-lubricating property is excellent especially.
More than describe the preferred embodiment of the present invention in detail; but the present invention is not limited to the detail in above-mentioned embodiment, within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition each the concrete technical characterictic described in above-mentioned embodiment, in reconcilable situation, can combine by any suitable mode.For fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible array modes.
In addition, also can carry out arbitrary combination between various embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (12)
1. a self-lubrication treatment agent composition, is characterized in that, said composition contains water, water glass, lubricant, inorganic inhibitor, silane coupling agent and organic resin.
2. agent composition according to claim 1, wherein, taking the water of 100 weight parts as benchmark, the content of described water glass is 0.5-10 weight part; The content of described lubricant is 5-30 weight part; The content of described inorganic inhibitor is 0.1-5 weight part; The content of described silane coupling agent is 2-20 weight part; The content of described organic resin is 1-50 weight part.
3. agent composition according to claim 1 and 2, wherein, described lubricant is at least one in water-base fluorocarbon emulsion, silicone oil emulsion, polythene wax emulsion, tetrafluoroethylene wax emulsion and carnauba wax emulsion.
4. agent composition according to claim 1 and 2, wherein, described organic resin is at least one in water-borne acrylic resin, water-based styrene-acrylic resin, resol resins, water-based versamid 900, waterborne organic silicon resin and aqueous epoxy resins.
5. agent composition according to claim 1 and 2, wherein, described inorganic inhibitor is at least one in potassium permanganate, disodium-hydrogen, Sodium Nitrite, tripoly phosphate sodium STPP, zinc sulfate and Sodium orthomolybdate, is preferably at least one in Sodium Nitrite, Sodium orthomolybdate and potassium permanganate.
6. agent composition according to claim 1, wherein, this agent composition also contains auxiliary agent.
7. agent composition according to claim 6, wherein, described auxiliary agent is at least one in tensio-active agent, flow agent and defoamer; Taking the water of 100 weight parts as benchmark, the content of described auxiliary agent is 0.1-2 weight part, is preferably 0.3-1 weight part.
8. a hot dip aluminum zinc plate, this hot dip aluminum zinc plate comprises and it is characterized in that hot-dip aluminizing zinc plate substrate and be attached to the coating on substrate surface, described coating is formed by the self-lubrication treatment agent composition described in any one in claim 1-8.
9. hot dip aluminum zinc plate according to claim 8, wherein, the thickness of described coating is 0.05-0.3 micron.
10. a preparation method for hot dip aluminum zinc plate, the method comprises: the self-lubrication treatment agent composition described in any one in claim 1-7 is mixed with to coating fluid, described coating fluid is coated on hot-dip aluminizing zinc plate substrate, be then cured.
11. preparation methods according to claim 10, wherein, described curing condition comprises: temperature is 80-110 DEG C, the time is 10-60s.
12. according to the preparation method described in claim 10 or 11, and wherein, it is 0.05-0.3 micron that the consumption of described coating fluid makes the thickness of the coating forming on described hot-dip aluminizing zinc plate substrate.
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| CN107641802A (en) * | 2017-07-19 | 2018-01-30 | 合肥普庆新材料科技有限公司 | A kind for the treatment of fluid of resistance and fingerprint resistance containing chromium for hot-dip galvanizing sheet steel |
| CN111500098A (en) * | 2020-04-15 | 2020-08-07 | 上海达克罗涂复工业有限公司 | Antifriction coating and preparation method and application thereof |
| CN112500792A (en) * | 2020-12-03 | 2021-03-16 | 攀钢集团研究院有限公司 | Surface treatment liquid for hot-dip aluminum-zinc plate and preparation method of hot-dip aluminum-zinc plate |
| CN112553523A (en) * | 2019-09-25 | 2021-03-26 | 上海梅山钢铁股份有限公司 | Self-lubricating hot-dip galvanized steel plate for steel-wood composite floor and manufacturing method thereof |
| CN114502673A (en) * | 2019-09-24 | 2022-05-13 | Posco公司 | Surface treatment solution composition for ternary system hot-dip galvanized alloy steel sheet for imparting excellent blackening resistance and alkali resistance, ternary system hot-dip galvanized alloy steel sheet surface-treated with the composition, and method for producing the same |
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| CN101250699A (en) * | 2008-03-27 | 2008-08-27 | 武汉科技大学 | Chromium-free passivation liquid for galvanized sheet and manufacture method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107641802A (en) * | 2017-07-19 | 2018-01-30 | 合肥普庆新材料科技有限公司 | A kind for the treatment of fluid of resistance and fingerprint resistance containing chromium for hot-dip galvanizing sheet steel |
| CN114502673A (en) * | 2019-09-24 | 2022-05-13 | Posco公司 | Surface treatment solution composition for ternary system hot-dip galvanized alloy steel sheet for imparting excellent blackening resistance and alkali resistance, ternary system hot-dip galvanized alloy steel sheet surface-treated with the composition, and method for producing the same |
| CN114502673B (en) * | 2019-09-24 | 2023-05-26 | Posco公司 | Surface treatment solution composition, ternary hot-dip galvanized alloy steel sheet surface-treated with the same, and method for producing the same |
| CN112553523A (en) * | 2019-09-25 | 2021-03-26 | 上海梅山钢铁股份有限公司 | Self-lubricating hot-dip galvanized steel plate for steel-wood composite floor and manufacturing method thereof |
| CN111500098A (en) * | 2020-04-15 | 2020-08-07 | 上海达克罗涂复工业有限公司 | Antifriction coating and preparation method and application thereof |
| WO2021208686A1 (en) * | 2020-04-15 | 2021-10-21 | 上海达克罗涂复工业有限公司 | Coating for increasing/reducing friction coefficient, preparation method therefor and use thereof |
| CN112500792A (en) * | 2020-12-03 | 2021-03-16 | 攀钢集团研究院有限公司 | Surface treatment liquid for hot-dip aluminum-zinc plate and preparation method of hot-dip aluminum-zinc plate |
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