CN202755582U - Self-cleaning highly-anticorrosive coating steel plate - Google Patents
Self-cleaning highly-anticorrosive coating steel plate Download PDFInfo
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- CN202755582U CN202755582U CN201220443942.3U CN201220443942U CN202755582U CN 202755582 U CN202755582 U CN 202755582U CN 201220443942 U CN201220443942 U CN 201220443942U CN 202755582 U CN202755582 U CN 202755582U
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Abstract
The utility model discloses a self-cleaning highly-anticorrosive coating steel plate and belongs to the technical field of coating steel plates. The self-cleaning highly-anticorrosive coating steel plate comprises a substrate, a first structure layer and a second structure layer, wherein the first structure layer is combined with one side surface of the substrate, which faces outwards under the usage state of the substrate, and the second structure layer is combined with one side surface of the substrate, which faces inwards under the usage state of the substrate. The self-cleaning highly-anticorrosive coating steel plate is characterized in that the surface of the first structure layer is combined with a passivation layer, and the surface of the passivation layer is combined with a self-cleaning layer. The self-cleaning highly-anticorrosive coating steel plate has the advantages of being good in anticorrosive effect and ideal in self-cleaning effect, and when the plate is used outdoors, organic pollutants accumulated on the surface of the self-cleaning layer and pollutants such as surface dust and impurities can be cleaned by rain water washing, and manual cleaning and service are not required.
Description
Technical field
The utility model belongs to the coating layer steel plate technical field, is specifically related to the high anti-corrosion coating layer steel plate of a kind of automatically cleaning
Background technology
The coating layer steel plate is because it has smooth surface, excellent heat-resisting oxidation-resistance, workability and desirable sight is widely used in skin, Standard Factory Room, garage, solar water heater, traffic mark board, vehicle (such as mobile muffler) and various plant equipment etc.But the coating layer steel plate that is applied to outdoor occasion is because being subjected to the pollutions such as dust in the atmosphere and oiliness smog that its attractive in appearance and even anti-corrosive properties are affected, especially when this steel plate is applied to highrise building, often be difficult to rely on the rain drop erosion cleaning, clean manually not only that difficulty is large and adopt, and safety is difficult to ensure.Therefore, the maintenance of coating layer steel plate suffers from industry for a long time all the time, and is being showed no all referential technology enlightenments that has in disclosed patent and the non-patent literature up to now.
The applicant thinks, the coating layer steel plate is difficult to even can't maintenance, it would be better to say that the surface texture of coating layer steel plate self and/or surfacing lose rationally, is necessary in view of this to be explored and improve.
Nano titanium oxide (TiO
2
) have good hydrophily and efficient photocatalytic degradation ability, and have high activity, safety, cheapness, stable chemical nature and the strong advantage of anti-photoetch.TiO
2
Three kinds of crystal formations are arranged: anatase, rutile and brockite.Brockite is fewer at nature, and crystal formation is unstable, namely is converted into rutile-type about 650 ℃, thereby does not have industrial value.The energy gap of anatase (Eg) is 3.2eV, and the energy gap of rutile is 3.0eV, and the energy gap that anatase is higher makes electron hole pair have corrigendum or more negative current potential, thereby has higher oxidation capacity.Anatase adsorption H
2
O, O
2
And OH
-
Ability stronger, cause its photocatalytic activity higher, anatase crystal grain has less size and larger specific area usually in crystallization, and is favourable to light-catalyzed reaction.And Detitanium-ore-type has lot of advantages, for example photoetch do not occur, resistance to acids and bases is good and stable chemical nature etc.
Anatase type nano TiO
2
Generation has superpower oxidation capacity under the irradiation of ultraviolet light, the organic pollution complete catalysts oxidation can be become carbon dioxide, water and other small-molecule substances.Utilize such effect can prepare on the surface of glass, steel plate, pottery and ceramic tile one deck nano-TiO
2
Coating is being adsorbed on nano-TiO
2
The organic pollutant degradation of coating surface and clean by rain drop erosion together with remaining inorganic matter, thus realize self-cleaning function.The applicant just is being based on this delicate enlightenment and is forming the technical scheme with substantive meaning described below
Summary of the invention
Task of the present utility model is to provide a kind of and helps to embody excellent automatically cleaning effect, is conducive to improve decay resistance and uses and satisfy the high anti-corrosion coating layer steel plate of automatically cleaning that manpower-free under the outdoor application condition cleans curing requirements.
Task of the present utility model is finished like this, the high anti-corrosion coating layer steel plate of a kind of automatically cleaning, comprise substrate, be incorporated into substrate under the use state outward a side surface the first deck and be incorporated into substrate second deck towards an interior side surface under the use state, be characterised in that: the surface conjunction at described the first deck has passivation layer, and at the surface conjunction of passivation layer the automatically cleaning layer is arranged.
In a specific embodiment of the present utility model, the thickness of described the first deck and the second deck is 4-55 μ m.
In another specific embodiment of the present utility model, the material of described the first deck and the second deck is monobasic, binary or ternary material, and described monobasic material is aluminium or zinc; Described binary material is aluminium zinc; Described ternary material is aluminium zinc silicon.
In another specific embodiment of the present utility model, the thickness of described passivation layer is 50nm-2 μ m, and passivation layer is the trivalent chromium passivation layer; The thickness of described automatically cleaning layer is 2-5 μ m, and contact angle is＜10 °.
The technical scheme that the utility model provides since substrate under the use state, be combined with respectively the first deck and the second deck towards outer and inner surface, and outside the first deck, be combined with passivation layer, thereby have good anticorrosion effect; Owing to outside passivation layer, be combined with the automatically cleaning layer, thereby has a desirable automatically cleaning effect, when being used in when outdoor, productive set can need not manually to clean maintenance in the organic pollution on the surface of automatically cleaning layer by the rain drop erosion cleaning together with the pollutant of surperficial trifle in the world and so on.
Description of drawings
Fig. 1 is example structure figure of the present utility model.
The specific embodiment
Embodiment 1:
Ask for an interview Fig. 1, having provided a thickness is the substrate 1 of 0.1-4.5nm, this substrate 1 is cold-rolled steel sheet, be combined with the first deck 2 that thickness is 30 μ m in substrate 1 a use state side outward, and under substrate 1 use state, be combined with the second deck 3 that thickness is similarly 30 μ m towards an interior side, at the surface conjunction of the first deck 2 thickness being arranged is the passivation layer 4 of 80nm, and at the surface conjunction of passivation layer 4 thickness to be arranged be 2 μ m's and contact angle＜10 ° automatically cleaning layers 5.
Embodiment 2:
Only change first, second deck 2,3 thickness into 55 μ m, change the thickness of passivation layer 4 into 600nm, change the thickness of automatically cleaning layer 5 into 5 μ m, all the other are all with the description to embodiment 1.
Embodiment 3:
Only change first, second deck 2,3 thickness into 4 μ m, change the thickness of passivation layer 4 into 1 μ m, change the thickness of automatically cleaning layer 5 into 3.5 μ m, all the other are all with the description to embodiment 1.
Embodiment 4:
Only change first, second deck 2,3 thickness into 40 μ m, change the thickness of passivation layer 4 into 1.5 μ m, change the thickness of automatically cleaning layer 5 into 4 μ m, all the other are all with the description to embodiment 1.
The high anti-corrosion coating layer steel plate of the automatically cleaning of above-described embodiment 1 to 4 is obtained by following preparation example 1 to 4 respectively.
Preparation example 1:
A) cleaning steel plate, select cold-rolled steel sheet, the thickness of cold-rolled steel sheet does not need to limit in the present embodiment, select in thickness is the specification of 0.1-4.5 ㎜ because usually can be according to the difference of customer requirements and/or field of employment, after cold-rolled steel sheet is selected its both side surface is carried out disc brush and clean, carry out again alkali cleaning and electrolytic cleaned, to remove surface oxidation cortex and/or greasy dirt etc., with the oven dry of cold-rolled steel sheet tying-in drying tunnel, obtain substrate 1 after the cleaning;
B) plating, adopt dip-coating method that structural material is coated to by steps A) substrate 1 that obtains under the use state outward a side surface and use at this side surface outward and form the first deck 2, and simultaneously structural material being coated to substrate 1 uses at this towards an interior side under the use state and forms the second deck 3 towards an interior side surface, that is to say first, the second deck 2,3 simultaneously by dip-coating method be coated on substrate 1 outside, inboard, in the present embodiment, first, the second deck 2,3 thickness is 30 μ m, and first, the second deck 2,3 material is ternary material, ternary material is aluminium zinc silicon, wherein: the mass percent of aluminium is 53%, the mass percent of zinc is 45%, and the mass percent of silicon is 2%, this aluminium zinc silicon ternary material is melted in plating pot, when substrate 1 when dipping lifts under the state by way of the plating pot, just adhere to substrate 1 in, outer surface;
C) passivation, be the trivalent chromium solutions of 30g/L is coated to the first deck 2 at normal temperatures as passivator surface with mass concentration with roll coating model, and carry out drying and process namely after coating, entering drying tunnel after the passivation, the dry temperature of processing is 60 ℃, be 70s drying time, namely be combined with passivation layer 4 thereby be formed with on the surface of the first deck 2, in the present embodiment, the thickness of passivation layer 4 is 80nm;
D) apply automatically cleaning colloidal sol, automatically cleaning colloidal sol namely is coated to the surface of passivation layer 4 with rolling method with roll coating model, then calcine curing, calcination temperature is 450 ℃, the calcination time is 90min, obtain by shown in Figure 1 be the high anti-corrosion coating layer steel plate of automatically cleaning that the surface at passivation layer 4 shown in the embodiment 1 is formed with automatically cleaning layer 5, in the present embodiment, the thickness of automatically cleaning layer 5 is 2 μ m, contact angle is＜10 °, and automatically cleaning colloidal sol is that the raw material by following by weight proportioning consists of: 39 parts of nano titanic oxide sols, 3 parts of 56 parts of nano silicon dioxide sols and transition metal nitrates, wherein: nano titanic oxide sol is that the particle diameter of the nano titanium oxide in the nano titanic oxide sol is 5-40nm by the nano titanic oxide sol of sol method preparation; Nano silicon dioxide sol is the solvent decentralized and is acid nano silicon dioxide sol that the particle diameter of the nano silicon in the nano silicon dioxide sol is 5-30nm; Described transition metal nitrate is that zinc nitrate is the nitrate of zinc.
Preparation example 2:
A) cleaning steel plate is selected cold-rolled steel sheet, and cold-rolled steel sheet carries out disc brush cleaning, pickling and electrolytic cleaned to its both side surface after selecting, and with the oven dry of cold-rolled steel sheet tying-in drying tunnel, obtains substrate 1 after the cleaning;
B) plating, first, second deck 2,3 thickness are 55 μ m, and first, second deck 2,3 material are binary material, binary material is aluminium zinc, wherein: the mass percent of aluminium is 55%, the mass percent of zinc is 45%, and this aluminium zinc binary material is melted in the plating pot, when substrate 1 lifts the surface, medial and lateral that just adheres to substrate 1 under the state when plating pot at dipping;
C) passivation, be the trivalent chromium solutions of 15g/L is coated to the first deck 2 at normal temperatures as passivator surface with mass concentration with roll coating model, and carry out drying and process namely after coating, entering drying tunnel after the passivation, the dry temperature of processing is 85 ℃, be 40s drying time, namely be combined with passivation layer 4 thereby be formed with on the surface of the first deck 2, in the present embodiment, the thickness of passivation layer 4 is 600nm;
D) apply automatically cleaning colloidal sol, automatically cleaning colloidal sol is namely then calcined curing with the surface that rolling method is coated to passivation layer 4 with roll coating model, calcination temperature is 500 ℃, the calcination time is 60min, the thickness of automatically cleaning layer 5 is 5 μ m, and automatically cleaning colloidal sol is that the raw material by following by weight proportioning consists of: 1 part of 94 parts of nano titanic oxide sols, 5 parts of nano silicon dioxide sols and transition metal nitrate, transition metal nitrate is that copper nitrate is the nitrate of copper.Obtain the high anti-corrosion coating layer steel plate of the described automatically cleanings of embodiment 2, the steps A of this preparation example) to D) in the content that do not relate to all with the description to preparation example 1.
Preparation example 3:
A) cleaning steel plate is selected cold-rolled steel sheet, and cold-rolled steel sheet carries out alkali cleaning and electrolytic cleaned to its both side surface after selecting, and with the oven dry of cold-rolled steel sheet tying-in drying tunnel, obtains substrate 1 after the cleaning;
B) plating, first, second deck 2,3 thickness are 4 μ m, and first, second deck 2,3 material be the monobasic material, the monobasic material is zinc, when substrate 1 just adheres to the surface, medial and lateral of substrate 1 when dipping lifts under the state by way of the plating pot;
C) passivation, be the trivalent chromium solutions of 22g/L is coated to the first deck 2 at normal temperatures as passivator surface with mass concentration with roll coating model, and carry out drying and process namely after coating, entering drying tunnel after the passivation, the dry temperature of processing is 72 ℃, be 55s drying time, namely be combined with passivation layer 4 thereby be formed with on the surface of the first deck 2, in the present embodiment, the thickness of passivation layer 4 is 1 μ m;
D) apply automatically cleaning colloidal sol, automatically cleaning colloidal sol is namely then calcined curing with the surface that dip-coating method is coated to passivation layer 4 with roll coating model, calcination temperature is 400 ℃, the calcination time is 120min, the thickness of automatically cleaning layer 5 is 3.5 μ m, and automatically cleaning colloidal sol is that the raw material by following by weight proportioning consists of: 5 parts of 65 parts of nano titanic oxide sols, 25 parts of nano silicon dioxide sols and transition metal nitrates, transition metal nitrate is that nickel nitrate is the nitrate of nickel.Obtain the high anti-corrosion coating layer steel plate of the described automatically cleanings of embodiment 3, the steps A of this preparation example) to D) in the content that do not relate to all with the description to preparation example 1.
Preparation example 4:
A) cleaning steel plate is selected cold-rolled steel sheet, after cold-rolled steel sheet is selected its both side surface is carried out disc brush and cleans and electrolytic cleaned, with the oven dry of cold-rolled steel sheet tying-in drying tunnel, obtains substrate 1 after the cleaning;
B) plating, first, second deck 2,3 thickness are 40 μ m, and first, second deck 2,3 material are binary material, binary material is aluminium zinc, wherein: the mass percent of aluminium is 57%, the mass percent of zinc is 43%, and this aluminium zinc binary material is melted in the plating pot, when substrate 1 lifts the surface, medial and lateral that just adheres to substrate 1 under the state when plating pot at dipping;
C) passivation, be the trivalent chromium solutions of 25g/L is coated to the first deck 2 at normal temperatures as passivator surface with mass concentration with roll coating model, and carry out drying and process namely after coating, entering drying tunnel after the passivation, the dry temperature of processing is 65 ℃, be 60s drying time, namely be combined with passivation layer 4 thereby be formed with on the surface of the first deck 2, in the present embodiment, the thickness of passivation layer 4 is 1.5 μ m;
D) apply automatically cleaning colloidal sol, automatically cleaning colloidal sol is namely then calcined curing with the surface that rolling method is coated to passivation layer 4 with roll coating model, calcination temperature is 420 ℃, the calcination time is 100min, the thickness of automatically cleaning layer 5 is 4 μ m, and automatically cleaning colloidal sol is that the raw material by following by weight proportioning consists of: 1.5 parts of 75 parts of nano titanic oxide sols, 40 parts of nano silicon dioxide sols and transition metal nitrates, transition metal nitrate is that silver nitrate is silver-colored nitrate.Obtain the high anti-corrosion coating layer steel plate of the described automatically cleanings of embodiment 4, the steps A of this preparation example) to D) in the content that do not relate to all with the description to preparation example 1
Claims (4)
1.
The high anti-corrosion coating layer steel plate of a kind of automatically cleaning, comprise substrate (1), be incorporated into substrate (1) under the use state outward a side surface the first deck (2) and be incorporated into substrate (1) second deck (3) towards an interior side surface under the use state, it is characterized in that: the surface conjunction at described the first deck (2) has passivation layer (4), and at the surface conjunction of passivation layer (4) automatically cleaning layer (5) is arranged.
2.
The high anti-corrosion coating layer steel plate of automatically cleaning according to claim 1 is characterized in that the thickness of described the first deck (2) and the second deck (3) is 4-55 μ m.
3.
The high anti-corrosion coating layer steel plate of automatically cleaning according to claim 1 is characterized in that the material of described the first deck (2) and the second deck (3) is monobasic, binary or ternary material, and described monobasic material is aluminium or zinc; Described binary material is aluminium zinc; Described ternary material is aluminium zinc silicon.
4.
The high anti-corrosion coating layer steel plate of automatically cleaning according to claim 1, the thickness that it is characterized in that described passivation layer (4) is 50nm-2 μ m, and passivation layer (4) is the trivalent chromium passivation layer; The thickness of described automatically cleaning layer (5) is 2-5 μ m, and contact angle is＜10 °
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220443942.3U CN202755582U (en) | 2012-09-03 | 2012-09-03 | Self-cleaning highly-anticorrosive coating steel plate |
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| CN201220443942.3U CN202755582U (en) | 2012-09-03 | 2012-09-03 | Self-cleaning highly-anticorrosive coating steel plate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102862341A (en) * | 2012-09-03 | 2013-01-09 | 常熟华冶薄板有限公司 | Self-cleaning high-corrosion-resistance plating layer steel plate and preparation method thereof |
| CN107952596A (en) * | 2017-12-14 | 2018-04-24 | 厦门建霖健康家居股份有限公司 | A kind of water flowing out structure and shower |
-
2012
- 2012-09-03 CN CN201220443942.3U patent/CN202755582U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102862341A (en) * | 2012-09-03 | 2013-01-09 | 常熟华冶薄板有限公司 | Self-cleaning high-corrosion-resistance plating layer steel plate and preparation method thereof |
| CN107952596A (en) * | 2017-12-14 | 2018-04-24 | 厦门建霖健康家居股份有限公司 | A kind of water flowing out structure and shower |
| CN107952596B (en) * | 2017-12-14 | 2023-11-14 | 厦门建霖健康家居股份有限公司 | Go out water structure and gondola water faucet |
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