CN102632672B - Color-coated plate and method for manufacturing same - Google Patents
Color-coated plate and method for manufacturing same Download PDFInfo
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- CN102632672B CN102632672B CN201210092782.7A CN201210092782A CN102632672B CN 102632672 B CN102632672 B CN 102632672B CN 201210092782 A CN201210092782 A CN 201210092782A CN 102632672 B CN102632672 B CN 102632672B
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Abstract
The invention provides a color-coated plate and a method for preparing the same. The color-coated plate comprises a base plate (1), the base plate (1) is a steel plate with a stamping deformation performance, a primer coating (2) and a fine coating (3) are sequentially arranged on the base plate (1), and a chemical conversion layer (4) is disposed between the primer coating (2) and the base plate (1). The method for preparing the color-coated plate includes 1) passivating the surface of the base plate (1) at first when the color-coated plate is manufactured, and forming the chemical conversion layer (4); 2) forming the primer coating (2) on the surface of the chemical conversion layer (4) by coil coating; and 3) respectively forming a front coating (6) and a back coating (7) on two surfaces of the base plate (1) formed with the primer coating (2) by coil coating. The color-coated plate and the method for preparing the same have the advantages that the production stamping performance of the color-coated plate on a color coating production line is excellent, and the problem that flaws of coatings are easy to cause or a base material is easy to crack when an existing color-coated plate is stamped can be solved.
Description
Technical field
The invention belongs to Coil Coating Products technical field, more particularly, relate to a kind of when can solve existing Coil Coating Products punching press coating be easy to the Coil Coating Products of crackle or base material problem of Cracking, the present invention also provides the preparation method of this Coil Coating Products simultaneously.
Background technology
Coil Coating Products is easy to machine-shaping, environmental protection and energy saving, the significant advantage such as cost-saving because having, and application in recent years is constantly expanded to field of household appliances by building field.At present to the processing of sheet material, punching press, existing part household electrical appliances such as the product such as refrigerator, washing machine requires that lower parts are in batch, ripe application Coil Coating Products.Higher household appliances or parts are required to processing, punching press, as backboard, outdoor machine of air-conditioner etc. such as PDP, LED, because existing Coil Coating Products product can't meet the demands, in machine-shaping process, there is coating crack or come off, base material cracking, the defect such as distortion place decay resistance reduction.Therefore, while household electric appliances inherence uses Coil Coating Products, all retain spraying coating process thereafter at present, punch forming is required that high product component still adopts this explained hereafter, by after sheet material (galvanized sheet, cold-reduced sheet etc.) punch forming after ten multiple working procedures such as cleaning, phosphatization, spraying assembling parts.This technique not only cost is high, and environmental pollution is serious, does not meet the demand for development of environmental protection and energy saving.
Summary of the invention
Technical problem to be solved by this invention is: for the deficiencies in the prior art, there is provided one on color coating line, produce punching performance good, when can solve existing Coil Coating Products punching press, coating is easy to the Coil Coating Products of crackle or base material problem of Cracking, and the present invention also provides the preparation method of this Coil Coating Products simultaneously.
Solve above-described technical problem, the technical scheme that the present invention takes is:
The present invention is a kind of Coil Coating Products, and described Coil Coating Products comprises substrate, and substrate is the steel plate with Pressing Deformation performance, and described substrate top layer sets gradually primer coating and smart coating, arranges chemical conversion layer between primer coating and substrate.
Arrange zinc coat between described substrate and chemical conversion layer, the above steel grade of DQ level selected by substrate, and described smart coating comprises face-coating and back coating.
Described chemical conversion layer (passivating film) thickness is 20-35mg/m
2; Primer coating THICKNESS CONTROL is at 4-9 μm; Face-coating THICKNESS CONTROL at 10-20 μm, back coating THICKNESS CONTROL 5-10 μm.
Yield strength≤the 280MPa of described base material, tensile strength≤350MPa, percentage elongation >=32%, r90 >=1.7, n90 >=0.18.
The high-flexibility coil coating that described primer coating and smart coating all adopt the processing extension property that can guarantee coating consistent with substrate, the fineness of described coil coating is 4-7, and viscosity is 110-130, pliability≤1T, salt fog resistance >=240h, ultraviolet ageing time >=600h.
The present invention also provides the preparation method of above-mentioned Coil Coating Products, and the step of described Coil Coating Products preparation method is:
1) when prepared by Coil Coating Products, first Passivation Treatment is carried out to substrate surface, form chemical conversion layer;
2) coil coating is used to form primer coating on chemical conversion layer surface;
3) coil coating is used to form face-coating and back coating respectively on the substrate two sides forming primer coating again.
Described substrate surface first cleans substrate before carrying out Passivation Treatment, after substrate passivation, substrate is dried, after forming the substrate formation primer coating after chemical conversion layer and smart coating, be cured respectively and cool, finally the Coil Coating Products prepared being furled.
When described substrate cleans, cleaning fluid is alkali lye, and the concentration of cleaning fluid is 0.5-1.5%, and the temperature of described alkali lye remains on 50-70 DEG C.
When Passivation Treatment is carried out on the surface of described substrate, the concentration of passivating solution is 20-45%.
After described primer coating and smart coating are cured and cool, carry out water-cooled, the mode of water-cooled is spray water-cooled, and hydraulic pressure when wherein spraying water-cooled is 0.1-0.4MPa.
Adopt technical scheme of the present invention, following beneficial effect can be obtained:
Coil Coating Products of the present invention and preparation method thereof, raw material is made by adopting coil coating, the Pressing Deformation steel plate of good performance (comprising cold-reduced sheet, galvanized sheet etc.) of processed and applied excellent performance, color coating line is produced the Coil Coating Products that punching performance is good, solve the household appliances punch components defect such as coating crack or base material cracking when adopting existing Coil Coating Products punching press, thus realize the target that household electrical appliances industry eliminates rear spraying coating process, uses the i.e. Coil Coating Products of energy-conserving and environment-protective instead.
Accompanying drawing explanation
Brief description is made to the content expressed by each accompanying drawing of this description and the mark in figure below:
Fig. 1 is the structural representation of Coil Coating Products of the present invention;
Fig. 2 is the partial properties data demand table of Coil Coating Products of the present invention;
Be labeled as in figure: 1, substrate; 2, primer coating; 3, smart coating; 4, chemical conversion layer; 5, zinc coat; 6, face-coating; 7, back coating.
Detailed description of the invention
Contrast accompanying drawing below, by the description to embodiment, the effect and operation principle etc. of the specific embodiment of the present invention as the mutual alignment between the shape of involved each component, structure, each several part and annexation, each several part are described in further detail:
As shown in accompanying drawing 1, accompanying drawing 2, the present invention is a kind of Coil Coating Products, and described Coil Coating Products comprises substrate 1, and substrate 1 is for having the steel plate of Pressing Deformation performance, described substrate 1 top layer sets gradually primer coating 2 and smart coating 3, arranges chemical conversion layer 4 between primer coating 2 and substrate 1.
Arrange zinc coat 5 between described substrate 1 and chemical conversion layer 4, the above steel grade of DQ level selected by substrate 1, and described smart coating 3 comprises face-coating 6 and back coating 7.
Described chemical conversion layer 4 (passivating film) thickness is 20-35mg/m
2; Primer coating 2 THICKNESS CONTROL is at 4-9 μm; Face-coating 6 THICKNESS CONTROL at 10-20 μm, back coating 7 THICKNESS CONTROL 5-10 μm.
Yield strength≤the 280MPa of described base material 1, tensile strength≤350MPa, percentage elongation >=32%, r90 >=1.7, n90 >=0.18.
Described primer coating 2 and smart coating 3 all adopt the high-flexibility coil coating guaranteeing that the processing extension property of coating is consistent with substrate 1, the fineness of coil coating is 4-7, and viscosity is 110-130, pliability≤1T, salt fog resistance >=240h, ultraviolet ageing time >=600h.
The present invention also provides the preparation method of above-mentioned Coil Coating Products, and the step of described Coil Coating Products preparation method is:
1) when prepared by Coil Coating Products, first Passivation Treatment is carried out to substrate 1 surface, form chemical conversion layer 4;
2) coil coating is used to form primer coating 2 on chemical conversion layer 4 surface;
3) coil coating is used to form face-coating 6 and back coating 7 respectively on substrate 1 two sides forming primer coating 2 again.
Before Passivation Treatment is carried out on described substrate 1 surface, first substrate 1 is cleaned, after substrate 1 passivation, substrate 1 is dried, after the substrate 1 formed after chemical conversion layer 4 forms primer coating 2 and smart coating 3, be cured respectively and cool, finally the Coil Coating Products prepared being furled.
When described substrate 1 cleans, cleaning fluid is alkali lye, and the concentration of cleaning fluid is 0.5-1.5%, and the temperature of described alkali lye remains on 50-70 DEG C.
When Passivation Treatment is carried out on the surface of described substrate 1, the concentration of passivating solution is 20-45%.
After described primer coating 2 and smart coating 3 are cured and cool, carry out water-cooled, the mode of water-cooled is spray water-cooled, and hydraulic pressure when wherein spraying water-cooled is 0.1-0.4MPa.
Under the prerequisite guaranteeing substrate processing punching performance; Coil Coating Products of the present invention adds and adopts high-flexibility coil coating man-hour; consistent with substrate to guarantee the processing extension property of coating, thus the generation of the holiday such as complete, flawless of coating after avoiding Coil Coating Products machining deformation.
Coil Coating Products of the present invention and preparation method thereof, raw material is made by adopting coil coating, the Pressing Deformation steel plate of good performance (comprising cold-reduced sheet, galvanized sheet etc.) of processed and applied excellent performance, color coating line is produced the Coil Coating Products that punching performance is good, solve the household appliances punch components defect such as coating crack or base material cracking when adopting existing Coil Coating Products punching press, thus realize the target that household electrical appliances industry eliminates rear spraying coating process, uses the i.e. Coil Coating Products of energy-conserving and environment-protective instead.
Above by reference to the accompanying drawings to invention has been exemplary description; the concrete realization of obvious the present invention is not subject to the restrictions described above; as long as have employed the various improvement that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasions, all in protection scope of the present invention without to improve.
Claims (1)
1. a Coil Coating Products preparation method, described Coil Coating Products comprises substrate (1), substrate (1) is for having the steel plate of Pressing Deformation performance, the upper layer of described substrate (1) sets gradually primer coating (2) and smart coating (3), arranges chemical conversion layer (4) between primer coating (2) and substrate (1);
Between described substrate (1) and chemical conversion layer (4), zinc coat (5) is set, the above steel grade of DQ level selected by substrate (1), and described smart coating (3) comprises face-coating (6) and back coating (7);
Described chemical conversion layer (4) thickness is 20-35mg/m
2; Primer coating (2) THICKNESS CONTROL is at 4-9 μm; Face-coating (6) THICKNESS CONTROL at 10-20 μm, back coating (7) THICKNESS CONTROL 5-10 μm;
Yield strength≤the 280MPa of described substrate (1), tensile strength≤350MPa, percentage elongation >=32%, r90 >=1.7, n90 >=0.18;
Described primer coating (2) and smart coating (3) all adopt the high-flexibility coil coating guaranteeing that the processing extension property of coating is consistent with substrate (1), the fineness of described coil coating is 4-7, viscosity is 110-130, pliability≤1T, salt fog resistance >=240h, ultraviolet ageing time >=600h;
The step of described Coil Coating Products preparation method is:
1) when prepared by Coil Coating Products, first Passivation Treatment is carried out to the substrate surface being provided with zinc coat (5), form chemical conversion layer (4);
2) coil coating is used to form primer coating (2) on chemical conversion layer (4) surface;
3) coil coating is used to form face-coating (6) and back coating (7) respectively on the substrate two sides being provided with zinc coat (5) forming primer coating (2) again;
Before the described substrate surface being provided with zinc coat (5) carries out Passivation Treatment, first the substrate being provided with zinc coat (5) is cleaned, after being provided with the substrate passivation of zinc coat (5), the substrate being provided with zinc coat (5) is dried, after forming substrate formation primer coating (2) being provided with zinc coat (5) after chemical conversion layer (4) and smart coating (3), be cured respectively and cool, finally the Coil Coating Products prepared being furled;
When the described substrate being provided with zinc coat (5) cleans, cleaning fluid is alkali lye, and concentration of lotion is 0.5-1.5%, and the temperature of described alkali lye remains on 50-70 DEG C;
It is characterized in that: when Passivation Treatment is carried out on the described surface being provided with the substrate of zinc coat (5), passivating solution concentration is 20-45%;
After described primer coating (2) and smart coating (3) are cured and cool, carry out water-cooled, the mode of water-cooled is spray water-cooled, and hydraulic pressure when wherein spraying water-cooled is 0.1-0.4MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210092782.7A CN102632672B (en) | 2012-03-31 | 2012-03-31 | Color-coated plate and method for manufacturing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210092782.7A CN102632672B (en) | 2012-03-31 | 2012-03-31 | Color-coated plate and method for manufacturing same |
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| Publication Number | Publication Date |
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| CN102632672A CN102632672A (en) | 2012-08-15 |
| CN102632672B true CN102632672B (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210092782.7A Active CN102632672B (en) | 2012-03-31 | 2012-03-31 | Color-coated plate and method for manufacturing same |
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| CN (1) | CN102632672B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104015436A (en) * | 2014-05-15 | 2014-09-03 | 合肥禾盛新型材料有限公司 | Front-rear-surface dual-coated matte panel and manufacturing method thereof |
| CN106423790A (en) * | 2016-04-20 | 2017-02-22 | 力同铝业（广东）有限公司 | Processing method for coated aluminum coil |
| CN115216197A (en) * | 2022-05-30 | 2022-10-21 | 山东嘉隆新型材料有限公司 | Color-coated sheet and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1958284A (en) * | 2006-09-05 | 2007-05-09 | 马鞍山钢铁股份有限公司 | Multi purpose color coating boards, and preparation method |
| CN101289594A (en) * | 2007-04-18 | 2008-10-22 | 宝山钢铁股份有限公司 | Coating for sandwich panel and board two-used colorful steel plates and method of use thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050013979A1 (en) * | 2003-04-30 | 2005-01-20 | Nobuki Yoshizaki | Heavy-duty anticorrosive coated steel material with excellent resistance against separation and corrosion |
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2012
- 2012-03-31 CN CN201210092782.7A patent/CN102632672B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1958284A (en) * | 2006-09-05 | 2007-05-09 | 马鞍山钢铁股份有限公司 | Multi purpose color coating boards, and preparation method |
| CN101289594A (en) * | 2007-04-18 | 2008-10-22 | 宝山钢铁股份有限公司 | Coating for sandwich panel and board two-used colorful steel plates and method of use thereof |
Non-Patent Citations (3)
| Title |
|---|
| 傅作宝.彩色涂层钢板(彩涂板)的生产.《冷轧薄钢板生产》.冶金工业出版社,2005,(第2版),地371-379页. * |
| 冶金工业信息标准研究院冶金标准化研究所中国标准出版社第五编辑室.彩色涂层钢板及钢带.《建筑用钢材标准汇编》.中国标准出版社,2009,(第2版),第681-690页. * |
| 刘鸣放 等.冷轧低碳钢板及钢带的力学性能.《金属材料力学性能手册》.机械工业出版社,2011,第383页. * |
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| CN102632672A (en) | 2012-08-15 |
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