CN202088567U - Colorful coating steel plate for cleaning - Google Patents
Colorful coating steel plate for cleaning Download PDFInfo
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- CN202088567U CN202088567U CN2011202037977U CN201120203797U CN202088567U CN 202088567 U CN202088567 U CN 202088567U CN 2011202037977 U CN2011202037977 U CN 2011202037977U CN 201120203797 U CN201120203797 U CN 201120203797U CN 202088567 U CN202088567 U CN 202088567U
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Abstract
The utility model relates to the technical field of materials, in particular to a colorful coating steel plate for cleaning. The colorful coating steel plate for cleaning comprises a finishing galvanizing base plate (101) and is characterized in that a chemical conversion coating (103), a primer coating (104) and a finish coating (106) are sequentially arranged upwards on the upper surface of the base plate (101); and a chemical conversion coating (103) and a back coating (105) are sequentially arranged downwards on the lower surface of the base plate (101). The structure and the craft of the colorful coating steel plate are improved so as to greatly improve the adhesive force of the coating and obtain the clean colorful coating plate with fine and smooth external coating surface. Compared with the existing colorful coating steel plate, the utility model has the advantages that the colorful coating steel plate for cleaning has good surface characteristic and bending performance, is easy to clean and is resistant to repeated wiping and has non-toxic and environment-friendly characteristics. In addition, the method for preparing the colorful coating steel plate for cleaning is simple and effective, and the colorful coating steel plate for cleaning also has low equipment investment and low cost and is applicable to large industrial production.
Description
Technical field
The utility model relates to the material technology field, and particularly a kind of purification is with clean color painted steel strip.
Background technology
Color painted steel strip is meant the steel plate that has organic coating on substrate, generally abbreviates color steel as, and its substrate commonly used is cold-rolled substrate, hot dip galvanizing substrate and electrogalvanizing substrate; Coating commonly used has polyester, silicon modified polyester, poly-partially difluoroethylene and plastisol etc.It is good that color painted steel strip has corrosion resistance, bright in luster, appearance looks elegant, machine-shaping is convenient, the intensity height, advantage such as cost is lower is widely used in industries such as building household electrical appliances and communications and transportation, building industry particularly mainly is used as the roof wall surface of steel-structure factory building, airport, storehouse and industry such as freezing and commercial building and door etc.
Developing history through two more than ten years, the color painted steel strip industry is greatly developed in China, do not comprise aluminium base or tinning substrate is the clad plate of base material, be the color painted steel strip output of base material with galvanizing or aluminum-zinc alloy substrate with the speed increment in every year average 40%, China has become world color painted steel strip big producing country.But the quality of the color product made from steel of China also is in low side.With the galvanizing Coil Coating Products is example, has shape defect and open defects such as zinc coat is coarse, extension zinc such as substrate unevenness deviation is big, camber; And paint film disadvantage such as the pin hole of filming that produces in the color coating process, bubble, shrinkage cavity; And because of visual defects such as the improper aberration that produces of production technology control, current marks; Comprise also that the paint film physical performance index that causes because of all kinds of composite factors such as raw material and production technology such as T are curved, MEK, anti-scratch performance, shock resistance etc. are relatively poor.Owing to there is above-mentioned defective, common color coated steel sheet can only use as the common buildings exterior wall.
At present, along with expanding economy, the raising of people's living standard presses for high-quality color painted steel strip.In some application scenario, not only require the Coil Coating Products template smooth, have the excellent in vending workability energy, paint film adhesion is strong, resistance to scraping is high, require to have easy cleaning and anti-characteristic of cleaning repeatedly simultaneously and have significantly good apparent property, promptly require to have fine and smooth bright and clean film coated surface, disadvantages such as no pit, pin hole, bubble, simultaneously also require to have nontoxic, environmental protection characteristic, cut off as IT industry, food processing industry, the contour clean room of photovoltaic manufacturing industry workshop in some industry; And Cold Chain Logistics is already made freezer, is purified air room etc. takes place; And the interior trim of public place of entertainment, exhibition center, boats and ships etc.
The utility model content
(1) technical problem that will solve
The technical problems to be solved in the utility model is: how to make color painted steel strip satisfy the requirement of complicated bend processing characteristics, have simultaneously easy cleaning and paint film scrubbing resistance characteristic again, and have fine and smooth bright and clean coating surface, have the asepsis environment-protecting characteristic under the specified conditions.
(2) technical scheme
For solving the problems of the technologies described above, the utility model provides a kind of purification with clean color painted steel strip, comprise: the zinc-plated substrate of polishing, upwards be followed successively by chemical conversion layer, prime coat and top coat layer from described upper surface of base plate, be followed successively by chemical conversion layer and back of the body enamelled coating downwards from described base lower surface.
Wherein, described chemical conversion layer is the chromate epithelium.
Wherein, described prime coat thickness is 4-6 μ m, and is amino modified epoxy resin.
Wherein, described back of the body thickness of paint layer is 5-12 μ m, and is amino modified epoxy resin.
Wherein, described top coat layer thickness is 15～20 μ m, and is the polyester coating of fineness≤15 μ m.
(3) beneficial effect
The utility model has improved adhesive force of coatings greatly by the improvement to colour coating steel plate structure and technology, obtains having the clean coloured coating plate on the bright and clean external coating surface of exquisiteness, compares with existing color painted steel strip, and its advantage mainly contains:
1. has the surface of good characteristic.The plate face is smooth, and the apparent exquisiteness of coating is bright and clean, and color is soft, is rich in texture.
2. has the excellent in vending workability energy.Under various complicated processing conditions, coating does not ftracture, does not peel off; Strong adhesion, anti-scratch performance height.
3. have easy cleaning and the anti-characteristic of cleaning repeatedly.The product such as the metope that adopt this colored steel to make clean when being stain by dust easily, and it is sparkling clean to clean the back, not the dust-staying dirt; And coating surface is difficult for scratching and destroying under cleaning repeatedly.
4. has nontoxic, environmental protection characteristic (, adopting the coating that does not contain heavy metal ion) according to the environment for use needs.
And preparation method of the present utility model is simply effective, the equipment less investment, and cost is low, is very suitable for big industrial production.
Description of drawings
Fig. 1 is according to the purification of a kind of embodiment of the utility model structural representation with clean color painted steel strip;
To be purification shown in Figure 1 carry out the schematic diagram of brush roll when grinding with clean color painted steel strip to Fig. 2;
Fig. 3 is a purification shown in Figure 1 schematic diagram when carrying out contactless cooling with clean color painted steel strip.
Wherein, 101: substrate; 102: zinc coat; 103: the chemical conversion layer; 104: prime coat; 105: back of the body enamelled coating; 106: top coat layer; 201: go up brush roll; 202: backing roll; 203: following brush roll; 301: the cold wind blow device; 302: suspended hood; 303: compressed air purges (air curtain); 304: strong cold water pipe; 305: steam fog discharge device; 306: water-supporting disc; 307: carrying roller (steel rider); 308: extract centralising device; 309: the hot-air blowing device; 310: coated steel sheet.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is described in further detail.Following examples are used to illustrate the utility model, but are not used for limiting scope of the present utility model.
Fig. 1 is according to the purification of a kind of embodiment of the utility model structural representation with clean color painted steel strip, comprise: the zinc-plated substrate 101 of polishing, upwards be followed successively by chemical conversion layer 103, prime coat 104 and top coat layer 106 from described substrate 101 upper surfaces, be followed successively by chemical conversion layer 103 and back of the body enamelled coating 105 downwards from described substrate 101 lower surfaces.Described chemical composition coating 103 is this area chromate epithelium commonly used (chromate and zinc form metallo-chelate).Described prime coat 104 thickness are 4-6 μ m, and are amino modified epoxy resin.Described back of the body enamelled coating 105 thickness are 5-12 μ m, and are amino modified epoxy resin.Described top coat layer 106 thickness are 15～20 μ m, and are the polyester coating of fineness≤15 μ m.
Color steel sheet shown in Figure 1 adopts following preparation method's preparation:
S1: with the zinc-plated substrate 101 of polishing is base material, it is carried out spray degreasing, brush roll grinding and washing handle;
S2: all apply chemical composition coating on the upper and lower surface of the substrate 101 after handling, and described chemical composition coating is dried (bake out temperature is 80～100 ℃) processing, form chemical conversion layer 103 through step S1;
S3: on the chemical conversion layer 103 on substrate 101 upper and lower surfaces, prime respectively and carry on the back lacquer, and described priming paint and back of the body lacquer are toasted and cooling processing, form prime coat 104 and back of the body enamelled coating 105;
S4: on described prime coat 104, be coated with finish paint, and it is toasted and cooling processing, form top coat layer 106.
Among the step S1, the spray pressure of described spray degreasing can be according to crossing plate length and flow different choice, preferred 1.5～2.5kg/cm
2Effectively spray time is 8～12 seconds; Used tank liquor temperature is controlled at 55 ± 5 ℃.
Among the step S3, the chromate epithelium (chromate and zinc form metallo-chelate) that described chemical composition coating this area is commonly used, its bake out temperature is 80～100 ℃
As shown in Figure 2, among the step S1, it is the surface that brush roll is placed the zinc-plated substrate 101 after spray degreasing is handled that described brush roll is ground, driving and driving direction are opposite with substrate 101 directions of motion, grind, until the passivation layer of removing the zinc coat surface fully and plate face greasy dirt spot, and outer surface of substrate slightly ground, so that expose the zinc coat 102 of nascent state.Should be noted that: " overmastication " phenomenon can occur when excessive or nylon yarn is because of ageing hardening when brush roll pressure, the wire cut can appear in promptly zinc-plated substrate 101 surfaces.Should in time regulate brush roll pressure this moment or change brush roll.Described brush roll can select for use nylon yarn as the hairbrush material, and nylon yarn slightly contacts with steel plate, and contact force is a standard not destroy the zinc layer.Concrete steps and equipment also can be referring to Chinese patent application 200910091976.3.
The employing brush roll is ground, the one, can remove the purpose that remaining greasy dirt reaches the cleaned base material surface, the 2nd, the passivation layer that can destroy zinc-plated substrate surface exposes the zinc coat of nascent state, because the existence of passivation layer will reduce the adhesive force of chemical composition coating and priming paint and base material greatly.Slightly grind back coating one deck chemical composition coating through brush roll and be coated with one deck priming paint again, the adhesion of priming paint and base material will be greatly improved.
Cooling processing among step S3 and the S4 is contactless cooling, described contactless cooling is to utilize cooling water directly to cool off back of the body lacquer, utilize the conduction of heat of steel plate to cool off priming paint indirectly, so priming paint do not contact with cooling water, thereby realize the contactless cooling purpose of priming paint.Concrete steps and equipment also can be referring to Chinese patent application 200810156836.5.
Adopt contactless cooling, priming paint does not directly contact cooling water, cooling velocity is slower, can reduce the internal stress of steel, thereby can keep higher adhesion between priming paint and base material, priming paint and the finish paint, paint film is complete, and pin hole, bubble, common deficiency such as water stain can not occur, thereby help guaranteeing surface paint quality, and because finish paint paint film exquisiteness, bright and clean, when surface during by contaminating impurities such as dust, greasy dirts, pollutant is not easy to embed in the coating internal structure.
The purification of present embodiment can be satisfied the requirement of complicated bend processing characteristics with clean color painted steel strip, has easy cleaning and paint film scrubbing resistance characteristic simultaneously again, and because its fine and smooth bright and clean coating surface can reach the requirement of asepsis environment-protecting under given conditions.
Among the step S3, described priming paint and back of the body lacquer adopt amino modified epoxy resin, have both kept good closure property of epoxy resin and good adhesive force, have the pliability that adopts amino modified back resin again, and baking temperature is 224～232 ℃.
In the prior art, finish paint coating generally commonly used such as lime, sea blue, its coating fineness is greater than 25 μ m, among the step S6 of present embodiment, described finish paint adopts the coating fineness of high fineness polyester less than 15 μ m, and it is 216～224 ℃ that face is coated with the baking temperature, and film thickness is 15～20 μ m.
Embodiment 1
Adopting the zinc-plated substrate of polishing is base material, and it is as follows with clean color painted steel strip continuous automatic production process process description to purify clean purification: uncoiling → degreasing I → brush roll grinding → degreasing II → three road washing → chemical composition coating → oven dry → primary coat/back ofs the body are coated with → toast → I → face that cools off is coated with → toasts → cool off II → check → rolling.
Spray degreasing I adopts alkaline degreasing method, and main component is that NaOH, sodium carbonate, tertiary sodium phosphate, sodium metasilicate etc. and surfactant are formed, and tank liquor temperature is controlled at 55 ± 5 ℃; Spray pressure 2.0kg/cm
2Effectively spray time is 10 seconds; Degreasing II is with above-mentioned alkali lye flushing sheet material;
In the washing of three roads, first and second road adopts demineralized water, and the washing of the 3rd road adopts deionized water to guarantee the substrate surface cleannes;
It is the surface that brush roll is placed the zinc-plated substrate after spray degreasing is handled that brush roll is ground, driving and driving direction are opposite with the substrate motion direction, grind, until removing yellow passivation layer and plate face greasy dirt spot fully, and zinc layer outermost top layer slightly ground, so that expose nascent state zinc.Concrete steps and equipment also can be referring to Chinese patent application 200910091976.3.
Chemical composition coating adopts the chromate epithelium, and bake out temperature is 80～100 ℃;
The baking temperature that is coated with of control primary coat/back of the body is PMT224～232 ℃, and film thickness is primary coat 4～6 μ m, and priming paint adopts amino modified epoxy resin; It is 5～12 μ m that the back of the body is coated with thickness; It is PMT216～224 ℃ that face is coated with the baking temperature, and film thickness is 15～20 μ m, and finish paint adopts high fineness polyester coating, fineness≤15 μ m.Its structural representation is seen shown in Figure 1.
With the listed project of table 1 purification of preparation being carried out performance indications with clean color painted steel strip detects:
Table 1
Annotate (1): stain resistance test-----carbon black test method(s)
Water and carbon black (FW200) 85/15 mixes, and smears on the model, and 60 ℃ of dryings 2 hours with brush and absorbent cotton washing or wiping pollutant, can't be wiped until the coating surface carbon black in flowing water.Measure aberration Δ E with color difference meter, have stain resistance with interior judgement coating 2.0.
Table 2 is for purifying with clean color painted steel strip The performance test results, obviously, adopt high fineness polyester coating as the purification of finishing coat production with clean color painted steel strip, the surface has good stain resistance and scrub performance.
Table 2
Embodiment 2
Pollutant comprises water and carbon black, at its configuration proportion is water: under the situation of carbon black (FW 200)=85: 15, get respectively and purify respectively three on the model made with clean color painted steel strip (lime) and common color steel (lime), with pollutant after breadboard face brushing evenly, baking is 2 hours in the baking oven of 60 ℃ of temperature, take out the back and wash away, till can't wiping with absorbent cotton wiping to coating surface carbon black again with clean flowing water.With the model before testing is benchmark, tests change color respectively with color difference meter, the purification of present embodiment with clean color painted steel strip and common color steel stain resistance to such as table 3:
Table 3
Annotate: in the table 3, Δ L, Δ a, Δ b are meant the difference that model test front and back form and aspect change;
Aberration
As can be seen from Table 3, purify stain resistance with clean color painted steel strip and significantly be better than common purification with clean color painted steel strip.
Embodiment 3
In temperature is 23 ℃, nylon brush loading: 454g, and the frequency of coming backwash: under the condition of 37 times/min, the purification of present embodiment contrasts as following table 4 with the anti-wiping properties of clean color painted steel strip and common color steel:
Table 4
Result shown in the table 4 is:
Purify with average 1525 times of clean the color painted steel strip number of times of anti-the wiping
Average 1133 times of the common color steel number of times of anti-the wiping
Result=purification is with clean the color painted steel strip number of times of the anti-wiping the/common color steel number of times of anti-wiping the=135%
Through the result of 3 groups of test contrasts, mean value illustrates that greater than 100% the anti-wiping examination performance that purifies with clean color painted steel strip obviously is better than common color steel.
Above embodiment only is used to illustrate the utility model; and be not to restriction of the present utility model; the those of ordinary skill in relevant technologies field; under the situation that does not break away from spirit and scope of the present utility model; can also make various variations and modification; therefore all technical schemes that are equal to also belong to category of the present utility model, and scope of patent protection of the present utility model should be defined by the claims.
Claims (5)
1. a purification is with clean color painted steel strip, comprise: the zinc-plated substrate of polishing (101), it is characterized in that, upwards be followed successively by chemical conversion layer (103), prime coat (104) and top coat layer (106) from described substrate (101) upper surface, be followed successively by chemical conversion layer (103) and back of the body enamelled coating (105) downwards from described substrate (101) lower surface.
2. purification as claimed in claim 1 is characterized in that with clean color painted steel strip described chemical conversion layer (103) is the chromate epithelium.
3. purification as claimed in claim 1 is characterized in that with clean color painted steel strip described prime coat (104) thickness is 4-6 μ m, and is amino modified epoxy resin.
4. purification as claimed in claim 1 is characterized in that with clean color painted steel strip described back of the body enamelled coating (105) thickness is 5-12 μ m, and is amino modified epoxy resin.
5. purification as claimed in claim 1 is characterized in that with clean color painted steel strip described top coat layer (106) thickness is 15～20 μ m, and is the polyester coating of fineness≤15 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202037977U CN202088567U (en) | 2011-06-16 | 2011-06-16 | Colorful coating steel plate for cleaning |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202037977U CN202088567U (en) | 2011-06-16 | 2011-06-16 | Colorful coating steel plate for cleaning |
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| CN202088567U true CN202088567U (en) | 2011-12-28 |
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| CN2011202037977U Expired - Lifetime CN202088567U (en) | 2011-06-16 | 2011-06-16 | Colorful coating steel plate for cleaning |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102275353A (en) * | 2011-06-16 | 2011-12-14 | 苏州扬子江新型材料股份有限公司 | Cleansing color coated steel sheet for purification and preparation method thereof |
| CN103587157B (en) * | 2013-10-31 | 2015-09-09 | 苏州扬子江新型材料股份有限公司 | A kind of fireproof hydrogen storage plate |
| CN108580235A (en) * | 2018-04-16 | 2018-09-28 | 武汉钢铁有限公司 | A kind of production method of metallic paint color coated steel sheet |
-
2011
- 2011-06-16 CN CN2011202037977U patent/CN202088567U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102275353A (en) * | 2011-06-16 | 2011-12-14 | 苏州扬子江新型材料股份有限公司 | Cleansing color coated steel sheet for purification and preparation method thereof |
| CN103587157B (en) * | 2013-10-31 | 2015-09-09 | 苏州扬子江新型材料股份有限公司 | A kind of fireproof hydrogen storage plate |
| CN108580235A (en) * | 2018-04-16 | 2018-09-28 | 武汉钢铁有限公司 | A kind of production method of metallic paint color coated steel sheet |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111228 |
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| CX01 | Expiry of patent term |