CN102632672A - Color-coated plate and method for manufacturing same - Google Patents
Color-coated plate and method for manufacturing same Download PDFInfo
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- CN102632672A CN102632672A CN2012100927827A CN201210092782A CN102632672A CN 102632672 A CN102632672 A CN 102632672A CN 2012100927827 A CN2012100927827 A CN 2012100927827A CN 201210092782 A CN201210092782 A CN 201210092782A CN 102632672 A CN102632672 A CN 102632672A
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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 the Coil Coating Products technical field, more particularly, relate to a kind of can solve existing Coil Coating Products punching press the time coating be easy to the Coil Coating Products of crackle or base material cracking problem, the present invention also provides the preparation method of this Coil Coating Products simultaneously.
Background technology
Coil Coating Products is because of having significant advantages such as the machine-shaping of being easy to, environmental protection and energy saving, saving cost, and application is in recent years constantly expanded to field of household appliances by building field.At present existing part household electrical appliances such as products such as refrigerator, washing machine require lower parts in batch, the ripe Coil Coating Products of using to processing, the punching press of sheet material.To household appliances or the parts processed, punching press is had relatively high expectations; Like backboards such as PDP, LED, outdoor machine of air-conditioner etc.; Because existing Coil Coating Products product can't meet the demands, coating crack appears in the machine-shaping process or come off, defectives such as base material cracking, the reduction of distortion place decay resistance.Therefore; In the time of the inherent use of household electric appliances Coil Coating Products; All keep spraying coating process thereafter at present, the demanding product component of punch forming is still adopted this explained hereafter, be about to sheet material (galvanized sheet, cold-reduced sheet etc.) punch forming after assembling parts behind ten multiple working procedures such as cleaning, phosphatization, spraying.This technology 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: to the deficiency of prior art; Provide that a kind of on color coating line, to produce punching performance good; Coating is easy to the Coil Coating Products of crackle or base material cracking problem in the time of can solving existing Coil Coating Products punching press, 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 punching press deformation performance, and described substrate top layer sets gradually primer coating and smart coating, between primer coating and the substrate chemical conversion layer is set.
Between described substrate and the chemical conversion layer zinc coat is set, substrate is selected the above steel grade of DQ level for use, and described smart coating comprises face-coating and back coating.
Described chemical conversion layer (passivating film) thickness is 20-35mg/m
2The primer coating THICKNESS CONTROL is at 4-9 μ m; The face-coating THICKNESS CONTROL is at 10-20 μ m, back coating THICKNESS CONTROL 5-10 μ m.
Yield strength≤the 280MPa of described base material, tensile strength≤350MPa, percentage elongation>=32%, r90>=1.7, n90>=0.18.
Described primer coating all adopts the processing extension property high-flexibility coil coating consistent with substrate that can guarantee coating with smart coating; 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 described Coil Coating Products preparation method's step is:
When 1) Coil Coating Products prepares, earlier substrate surface is carried out Passivation Treatment, form chemical conversion layer;
2) use coil coating to form primer coating at the chemical conversion laminar surface;
3) use coil coating to form face-coating and back coating respectively on the substrate two sides that forms primer coating again.
Before described substrate surface carries out Passivation Treatment, earlier substrate is cleaned, after the substrate passivation; Substrate is dried; After forming substrate behind the chemical conversion layer and forming primer coating and smart coating, be cured respectively and cool off, the Coil Coating Products of at last preparation being accomplished furls.
When described substrate cleaned, cleaning fluid was an alkali lye, and the concentration of cleaning fluid is 0.5-1.5%, and the temperature of described alkali lye remains on 50-70 ℃.
When Passivation Treatment was carried out on the surface of described substrate, the concentration of passivating solution was 20-45%.
After described primer coating and smart coating are cured and cool off, carry out water-cooled, the mode of water-cooled is the spray water-cooled, and the hydraulic pressure when wherein spraying water-cooled is 0.1-0.4MPa.
Adopt technical scheme of the present invention, can obtain following beneficial effect:
Coil Coating Products of the present invention and preparation method thereof; Make raw material through the coil coating that adopts the processed and applied excellent performance, the steel plate (comprising cold-reduced sheet, galvanized sheet etc.) that the punching press deformation performance is good; On color coating line, produce the good Coil Coating Products of punching performance; Solve household appliances punch components defective such as coating crack or base material cracking when adopting existing Coil Coating Products punching press, thereby realize that household electrical appliances industry is eliminated the back spraying coating process, what use energy-conserving and environment-protective instead is the target of Coil Coating Products.
Description of drawings
The mark of facing down among expressed content of each accompanying drawing of this specification and the figure is made briefly bright:
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 among the figure: 1, substrate; 2, primer coating; 3, smart coating; 4, chemical conversion layer; 5, zinc coat; 6, face-coating; 7, back coating.
The specific embodiment
Contrast accompanying drawing below; Through the description to embodiment, the effect of mutual alignment between the shape of specific embodiments of the invention such as related each member, structure, the each several part and annexation, each several part and operation principle etc. are done further to specify:
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 punching press deformation performance; Described substrate 1 top layer sets gradually primer coating 2 and smart coating 3, between primer coating 2 and the substrate 1 chemical conversion layer 4 is set.
Between described substrate 1 and the chemical conversion layer 4 zinc coat 5 is set, substrate 1 is selected the above steel grade of DQ level for use, 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 are at 4-9 μ m; Face-coating 6 THICKNESS CONTROL are at 10-20 μ m, back coating 7 THICKNESS CONTROL 5-10 μ m.
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 consistent high-flexibility coil coating of the processing extension property that can guarantee coating and 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 described Coil Coating Products preparation method's step is:
When 1) Coil Coating Products prepares, earlier Passivation Treatment is carried out on substrate 1 surface, form chemical conversion layer 4;
2) use coil coating to form primer coating 2 on chemical conversion layer 4 surfaces;
3) use coil coating to form face-coating 6 and back coating 7 respectively on substrate 1 two sides that forms primer coating 2 again.
Before Passivation Treatment is carried out on described substrate 1 surface, earlier substrate 1 is cleaned, after substrate 1 passivation; Substrate 1 is dried; After forming substrate 1 behind the chemical conversion layer 4 and forming primer coating 2 and smart coating 3, be cured respectively and cool off, the Coil Coating Products of at last preparation being accomplished furls.
When described substrate 1 cleaned, cleaning fluid was an alkali lye, and the concentration of cleaning fluid is 0.5-1.5%, and the temperature of described alkali lye remains on 50-70 ℃.
When Passivation Treatment was carried out on the surface of described substrate 1, the concentration of passivating solution was 20-45%.
After described primer coating 2 is cured with smart coating 3 and cools off, carry out water-cooled, the mode of water-cooled is the spray water-cooled, and the hydraulic pressure when wherein spraying water-cooled is 0.1-0.4MPa.
Under the prerequisite of guaranteeing substrate processing punching performance; Coil Coating Products of the present invention adds and adopts the high-flexibility coil coating man-hour; Processing extension property to guarantee coating is consistent with substrate, thereby avoids the generation of holidaies such as coating behind the Coil Coating Products machining deformation is complete, flawless.
Coil Coating Products of the present invention and preparation method thereof; Make raw material through the coil coating that adopts the processed and applied excellent performance, the steel plate (comprising cold-reduced sheet, galvanized sheet etc.) that the punching press deformation performance is good; On color coating line, produce the good Coil Coating Products of punching performance; Solve household appliances punch components defective such as coating crack or base material cracking when adopting existing Coil Coating Products punching press, thereby realize that household electrical appliances industry is eliminated the back spraying coating process, what use energy-conserving and environment-protective instead is the target of Coil Coating Products.
Combine accompanying drawing that the present invention has been carried out exemplary description above; Obviously the concrete realization of the present invention does not receive the restriction of aforesaid way; As long as the various improvement of having adopted method design of the present invention and technical scheme to carry out; Or design of the present invention and technical scheme are directly applied to other occasions without improving, all in protection scope of the present invention.
Claims (10)
1. Coil Coating Products; It is characterized in that: described Coil Coating Products comprises substrate (1); Substrate (1) is for having the steel plate of punching press deformation performance, and described substrate (1) top layer sets gradually primer coating (2) and smart coating (3), between primer coating (2) and the substrate (1) chemical conversion layer (4) is set.
2. Coil Coating Products according to claim 1 is characterized in that: between described substrate (1) and the chemical conversion layer (4) zinc coat (5) is set, substrate (1) is selected the above steel grade of DQ level for use, and described smart coating (3) comprises face-coating (6) and back coating (7).
3. Coil Coating Products according to claim 1 and 2 is characterized in that: described chemical conversion layer (4) (passivating film) thickness is 20-35mg/m
2Primer coating (2) THICKNESS CONTROL is at 4-9 μ m; Face-coating (6) THICKNESS CONTROL is at 10-20 μ m, back coating (7) THICKNESS CONTROL 5-10 μ m.
4. Coil Coating Products according to claim 3 is characterized in that: the yield strength≤280MPa of described base material (1), tensile strength≤350MPa, percentage elongation>=32%, r90>=1.7, n90>=0.18.
5. Coil Coating Products according to claim 4; It is characterized in that: described primer coating (2) all adopts the processing extension property high-flexibility coil coating consistent with substrate (1) that can guarantee coating with smart coating (3); The fineness of described coil coating is 4-7, and viscosity is 110-130, pliability≤1T; Salt fog resistance>=240h, ultraviolet ageing time>=600h.
6. Coil Coating Products preparation method, it is characterized in that: described Coil Coating Products preparation method's step is:
When 1) Coil Coating Products prepares, earlier Passivation Treatment is carried out on substrate (1) surface, form chemical conversion layer (4);
2) use coil coating to form primer coating (2) on chemical conversion layer (4) surface;
3) use coil coating to form face-coating (6) and back coating (7) respectively on substrate (1) two sides that forms primer coating (2) again.
7. the preparation method of Coil Coating Products according to claim 6; It is characterized in that: before Passivation Treatment is carried out on described substrate (1) surface, earlier substrate (1) is cleaned, after substrate (1) passivation; Substrate (1) is dried; After forming substrate (1) behind the chemical conversion layer (4) and forming primer coating (2) and smart coating (3), be cured respectively and cool off, the Coil Coating Products to the preparation completion furls at last.
8. the preparation method of Coil Coating Products according to claim 7, it is characterized in that: described substrate (1) is when cleaning, and cleaning fluid is an alkali lye, and concentration of lotion is 0.5-1.5%, and the temperature of described alkali lye remains on 50-70 ℃.
9. according to the preparation method of claim 6 or 7 or 8 described Coil Coating Products, it is characterized in that: when Passivation Treatment was carried out on the surface of described substrate (1), the concentration of passivating solution was 20-45%.
10. the preparation method of Coil Coating Products according to claim 9; It is characterized in that: after described primer coating (2) and smart coating (3) are cured and cool off; Carry out water-cooled, the mode of water-cooled is the spray water-cooled, and the 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 |
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| 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 true CN102632672A (en) | 2012-08-15 |
| CN102632672B CN102632672B (en) | 2015-07-22 |
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| CN201210092782.7A Active CN102632672B (en) | 2012-03-31 | 2012-03-31 | Color-coated plate and method for manufacturing same |
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Cited By (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 |
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| US20050013979A1 (en) * | 2003-04-30 | 2005-01-20 | Nobuki Yoshizaki | Heavy-duty anticorrosive coated steel material with excellent resistance against separation and corrosion |
| 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 |
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2012
- 2012-03-31 CN CN201210092782.7A patent/CN102632672B/en active Active
Patent Citations (3)
| 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 |
| 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)
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| 傅作宝: "《冷轧薄钢板生产》", 30 June 2005, 冶金工业出版社 * |
| 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: "《建筑用钢材标准汇编》", 31 March 2009, 中国标准出版社 * |
| 刘鸣放 等: "《金属材料力学性能手册》", 31 January 2011, 机械工业出版社 * |
Cited By (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 |
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| Publication number | Publication date |
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| CN102632672B (en) | 2015-07-22 |
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