CN106694339A - Double-color coating color-coated sheet for steel drum manufacturing and preparation method of double-color coating color-coated sheet - Google Patents
Double-color coating color-coated sheet for steel drum manufacturing and preparation method of double-color coating color-coated sheet Download PDFInfo
- Publication number
- CN106694339A CN106694339A CN201710169666.3A CN201710169666A CN106694339A CN 106694339 A CN106694339 A CN 106694339A CN 201710169666 A CN201710169666 A CN 201710169666A CN 106694339 A CN106694339 A CN 106694339A
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- Prior art keywords
- color
- coating
- steel drum
- double
- layer
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
- B05D3/102—Pretreatment of metallic substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/51—One specific pretreatment, e.g. phosphatation, chromatation, in combination with one specific coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
- B05D7/54—No clear coat specified
- B05D7/546—No clear coat specified each layer being cured, at least partially, separately
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2503/00—Polyurethanes
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention provides a double-color coating color-coated sheet for steel drum manufacturing and a preparation method of the double-color coating color-coated sheet. The double-color coating color-coated sheet for steel drum manufacturing is formed through the steps of base plate cleaning, passivation, coating of a first-color paint layer on the front side, solidification, local coating of a second-color paint layer on the front side, solidification, local coating of a second-color paint layer on the front side of a base plate, solidification, cooling, checking and rolling up. Compared with the prior art, one-time machining forming can be achieved during manufacturing of containers like steel drums through the prepared color-coated sheet product without the need of processes of phosphorization, spraying and the like, and the problems of VOC exhaust emission and phosphorus wastewater and waste residue discharge of a drum manufacturer can be completely solved. Besides, the containers like the steel drums machined and manufactured through the product produced through the preparation method are delicate in appearance and brightly colored; the drum bodies are high in strength, the structure is stable, and the standard requirements like container safety can be met; and besides, according to the steel drums manufactured through the produced color-coated sheet, the industrial batch product quality is stable, and the quality consistency among batches is good.
Description
Technical field
The invention belongs to Material Field, and in particular to a kind of double-color coating Coil Coating Products made for steel drum and its preparation side
Method.
Background technology
Traditional steel drum manufacture craft is " punching press-welding-cleaning-phosphatization-spraying ", i.e., using cold rolling or galvanized sheet
After punch process shaping, painted again through phosphatization and formed.Not only labour intensity is big for the technique, low production efficiency, and environment is made
Into serious pollution.According to measuring and calculating, every ten thousand square metres of steel plates of the technique produce 2.9 ten thousand cubes of VOC gases, and 700 tons of concentration are
The phosphoric acid waste water of 0.29g/L.According to measuring and calculating, only Jiangsu Taicang, annual oil drum steel drum yield about 6,000,000 adds up to and produces
Raw about 50,000,000 cubes of VOC total amounts, phosphorus-containing wastewater causes serious pollution to environment more than 1,000,000 tons.
Therefore, traditional steel drum manufacture craft is incompatible with environment-friendly, is that national policy regulation needs to eliminate
Heavily contaminated technique.
Coil Coating Products are widely used in building, household electrical appliances, dress as a kind of environmental protection, energy-conservation, new material easily processed into type
The fields such as decorations decoration.Steel drum manufacturing industry directly processes tubbing according to Coil Coating Products, and one-shot forming is not required to the techniques such as phosphatization, spraying,
VOC waste gas discharges, the discharge of phosphorus-containing wastewater waste residue of tubbing factory can be thoroughly solved, is environment-friendly contributing share.
But particularity due to its processing mode of steel drum manufacturing industry, to staving color appearance, the special need of protective layer performance
Ask, existing Coil Coating Products can not meet steel drum making
The content of the invention
The purpose of the present invention is by using special bottom, the compound colored paint 1 in face and finish paint colored paint 2 and suitable base material
(such as cold-reduced sheet), produces a kind of clear with excellent machinability, color on color coating line by way of continuous roller coat
The double-color coating Coil Coating Products of the beautiful coating result of clear, bloom, meet the demand that the double-colored outward appearance steel drum of steel drum manufacturing industry makes.
A kind of preparation method of double-color coating Coil Coating Products made for steel drum that the present invention is provided, comprises the following steps:
1) cleaning base plate:
2) it is passivated:Substrate after cleaning is passivated by the applicator roll with passivating solution, then passivation layer solidification;
3) the coating colored paint of front first layer:Substrate front side coating colored paint after passivation, then solidifies;
4) colored paint of topical application front second layer:Colored paint solidification after, then the colored paint of substrate front side topical application second layer, so
Solidify afterwards;
5) cool down, check, crimp.
Further, step 1) in substrate is placed in temperature for 60-70 DEG C, mass concentration is in the alkali lye of 1.0-1.5%
Degreasing;It is 50-70 DEG C to be subsequently placed in temperature, and mass concentration is secondary degreasing in the alkali lye of 0.5-1.5%, then is placed in rinsing
Rinsed 3 times in groove, first time rinse liquid temperature is 50-70 DEG C, and second rinse liquid temperature is 50-70 DEG C, third time rinsing liquid
Temperature is 40-60 DEG C, completes cleaning;
Further, step 1) substrate be cold-rolled steel sheet or galvanized steel plain sheet;
Further, step 2) described in passivating solution be Chrome-free or have chromium passivating liquid;
Further, step 2) in passivation layer coated weight be controlled to 25-60mg/m2;Passivation layer solidification temperature is 70-100
℃。
Further, step 3) described in the first and second colored paints layer be Polyester Paint, colored paint coating layer thickness be 4-8 μm;
Further, step 3) in the first colored paint layer 216-232 DEG C of solidification temperature;
Further, step 4) described in the second colored paint layer be Polyester Paint;The Polyester Paint coating layer thickness is 4-8 μm;
Further, step 4) in the second colored paint layer 216-232 DEG C of solidification temperature;
A kind of double-color coating Coil Coating Products made for steel drum, are obtained using above method production.
The present invention is applied in two Bus in Color Coat Production Line for drying technique by two, by steel band (cold rolling or zinc-plated coil of strip) through multistage
Cleaning by degreasing post-passivation treatment, the steel band after the drying solidification of passivation wet coating coats ground floor coating (colored paint on coating machine A
1);Steel band with wet coating enters curing oven and completes first solidification of coating;Single coating steel band after solidification continues in coating
On machine B, by adjust B coating machine applicator rolls length and position to medium technical parameter, carry out in plate face specific width
The coating colored paint 2 of local second coating, then by solidification, cooling, batch to finished product.
Compared with prior art, the containers such as the Coil Coating Products production steel drum that prepared by the present invention, can disposably be processed into
Type, is not required to the techniques such as phosphatization, spraying, can thoroughly solve VOC waste gas discharges, the discharge of phosphorus-containing wastewater waste residue of tubbing factory.In addition,
The containers such as the steel drum made using the Product processing of present invention production, outward appearance is fine and smooth, color is beautiful;Staving intensity is high, structure is steady
It is fixed, the requirement of the standards such as vessel safety can be met;And, the steel drum made using the Coil Coating Products of present invention production, industrialization batch
Quality consistency between volume production quality stabilization, batch is good.
Brief description of the drawings
Fig. 1 is mono coat color coating plate structure schematic diagram;
1st, base material;2nd, passivation layer;3 front the first colored paint layers;4th, the colored paint of front first layer;
Below against accompanying drawing, by the description to embodiment, further details of is made to specific embodiment of the invention
Explanation, it is therefore an objective to help those skilled in the art to have inventive concept of the invention, technical scheme more complete, accurate and deep
Understanding, and contribute to it to implement.
Specific embodiment
Below against accompanying drawing, by the description to embodiment, further details of is made to specific embodiment of the invention
Explanation, it is therefore an objective to help those skilled in the art to have inventive concept of the invention, technical scheme more complete, accurate and deep
Understanding, and contribute to it to implement.
A kind of production method of the double-color coating Coil Coating Products made for steel drum, comprises the following steps:
Such as Fig. 1;
Production method is specially:
1) cleaning base plate:
Substrate is the cold-reduced sheet of horse steel full-flow process production, and the back side is Passivation Treatment layer.Substrate is placed in temperature for 60-
70 DEG C, mass concentration is for one time degreasing 3-8 seconds in the alkali lye of 1.0-1.5%;It is 50-70 DEG C, mass concentration to be subsequently placed in temperature
For secondary degreasing 3-8 seconds in the alkali lye of 0.5-1.5%, to remove the dirt such as ROLLING OIL, antirust oil, impurity of substrate surface;Again
It is placed in potcher and rinses 3 times, first time rinse liquid temperature is 50-70 DEG C, and second rinse liquid temperature is 50-70 DEG C, the 3rd
Secondary rinse liquid temperature is 40-60 DEG C, by three cleanings, can remove the alkali lye of substrate surface and thoroughly remove the dirts such as impurity
Thing;By after 5 sections of degreasings, cleaning treatments, substrate surface does not have greasy dirt, impurity, alkali lye etc. to remain and influence subsequent technique, completes
Cleaning;
2) it is passivated:Substrate after cleaning is passivated by the applicator roll with passivating solution, passivation layer solidification temperature is
70-100 DEG C, passivation layer coated weight Ti amount 4-12mg/ ㎡ or Cr amounts 25-40mg/m2;
3) the coating colored paint of front first layer:Substrate front side coating Polyester Paint after passivation, i.e., apply front face color on coating machine A
Paint 1, colored paint coating layer thickness is 4-8 μm;Colored paint coating solidifies at 216-232 DEG C;
4) the coating colored paint of front second layer:After the solidification of first colored paint, then the part in the specific width of substrate front side plate face
Coating Polyester Paint is the painting front colored paint 2 on coating machine B,;Second colored paint layer coating layer thickness is 4-8 μm;It is solid at 216-232 DEG C
Change;Cooling;
5) finally cool down, check, batch storage.
Step 1) cleaning such as table 1
The cleaning of table 1
Operation | Concentration of lye (%) | Tank liquor temperature (DEG C) |
Degreasing | 1.0-1.5 | 60-70 |
Degreasing | 0.5-1.5 | 50-70 |
Rinsing | / | 50-70 |
Rinsing | / | 50-70 |
Rinsing | / | 40-60 |
Step 2) passivation technology such as table 2
The passivation technology of table 2
Passivation layer solidifies PMT, DEG C | Passivation layer coated weight, mg/m2 |
70-100 | 25-60 |
Step 3) and step 4) coating process is such as table 3
The coating process of table 3
The color coating plate structure schematic diagram such as Fig. 1 produced using the above method, technical performance such as table 4 below.
The Coil Coating Products partial properties of table 4
The present invention is exemplarily described above in association with accompanying drawing.Obviously, the present invention is implemented and does not receive above-mentioned side
The limitation of formula.As long as employ the improvement of the various unsubstantialities that method of the present invention design and technical scheme are carried out;Or not
It is improved, above-mentioned design of the invention and technical scheme are directly applied into other occasions, in protection scope of the present invention
Within.
Claims (10)
1. it is a kind of for steel drum make double-color coating Coil Coating Products preparation method, it is characterised in that comprise the following steps:
1) cleaning base plate:
2) it is passivated:Substrate after cleaning is passivated by the applicator roll with passivating solution, then passivation layer solidification;
3) the coating colored paint of front first layer:Substrate front side coating colored paint after passivation, then solidifies;
4) colored paint of topical application front second layer:After colored paint solidification, then in the colored paint of substrate front side topical application second layer, Ran Hougu
Change;
5) cool down, check, crimp.
2. it is according to claim 1 for steel drum make double-color coating Coil Coating Products production method, it is characterised in that step
Rapid that the substrate 1) is placed in into temperature for 60-70 DEG C, mass concentration is a degreasing in the alkali lye of 1.0-1.5%;It is subsequently placed in
Temperature is 50-70 DEG C, and mass concentration is secondary degreasing in the alkali lye of 0.5-1.5%, then is placed in rinsing 3 times, first in potcher
Secondary rinse liquid temperature is 50-70 DEG C, and second rinse liquid temperature is 50-70 DEG C, and third time rinse liquid temperature is 40-60 DEG C, complete
Into cleaning.
3. according to claim 1-2 for steel drum make double-color coating Coil Coating Products production method, it is characterised in that
Step 1) substrate be cold-rolled steel sheet or galvanized steel plain sheet.
4. the production method of the double-color coating Coil Coating Products made for steel drum according to claim 1 and 2, its feature exists
In step 2) described in passivating solution be Chrome-free or have chromium passivating liquid.
5. it is according to claim 4 for steel drum make double-color coating Coil Coating Products production method, it is characterised in that step
It is rapid 2) in passivation layer coated weight be controlled to 25-60mg/m2;Passivation layer solidification temperature is 70-100 DEG C.
6. it is according to claim 1 for steel drum make double-color coating Coil Coating Products production method, it is characterised in that step
It is rapid 3) described in the first and second colored paints layer be Polyester Paint, colored paint coating layer thickness be 4-8 μm.
7. it is according to claim 1 for steel drum make double-color coating Coil Coating Products production method, it is characterised in that step
It is rapid 3) in the first colored paint layer 216-232 DEG C of solidification temperature.
8. it is according to claim 1 for steel drum make double-color coating Coil Coating Products production method, it is characterised in that step
It is rapid 4) described in the second colored paint layer be Polyester Paint;The Polyester Paint coating layer thickness is 4-8 μm.
9. it is according to claim 1 for steel drum make double-color coating Coil Coating Products production method, it is characterised in that step
It is rapid 4) in the second colored paint layer 216-232 DEG C of solidification temperature.
10. a kind of double-color coating Coil Coating Products made for steel drum, it is characterised in that using described in claim any one of 1-9
Method production obtain.
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CN201710169666.3A CN106694339A (en) | 2017-03-21 | 2017-03-21 | Double-color coating color-coated sheet for steel drum manufacturing and preparation method of double-color coating color-coated sheet |
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CN201710169666.3A CN106694339A (en) | 2017-03-21 | 2017-03-21 | Double-color coating color-coated sheet for steel drum manufacturing and preparation method of double-color coating color-coated sheet |
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CN201710169666.3A Pending CN106694339A (en) | 2017-03-21 | 2017-03-21 | Double-color coating color-coated sheet for steel drum manufacturing and preparation method of double-color coating color-coated sheet |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107931074A (en) * | 2017-11-16 | 2018-04-20 | 马鞍山钢铁股份有限公司 | A kind of good environment-friendly type television backboard Coil Coating Products of processability and its production technology |
CN108080239A (en) * | 2017-11-14 | 2018-05-29 | 广州擎天材料科技有限公司 | A kind of preparation method of environmental protection powder coating Coil Coating Products |
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CN101659175A (en) * | 2009-09-02 | 2010-03-03 | 苏州扬子江新型材料股份有限公司 | Scratching-resistant and wear-resistant color-coated steel sheet |
CN101912839A (en) * | 2010-02-10 | 2010-12-15 | 常熟华冶薄板有限公司 | Continuous processing method of printed color coated steel plates at normal temperature |
CN104723708A (en) * | 2015-04-03 | 2015-06-24 | 马钢(集团)控股有限公司 | Wood-like printing color coating steel strip manufacturing method |
CN104805951A (en) * | 2015-05-07 | 2015-07-29 | 马钢(集团)控股有限公司 | High-corrosion-resistance building color-coated plate and manufacturing method of high-corrosion-resistance building color-coated plate |
CN104859355A (en) * | 2015-05-07 | 2015-08-26 | 马钢(集团)控股有限公司 | Sand streak coating color-coated plate and preparation method thereof |
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2017
- 2017-03-21 CN CN201710169666.3A patent/CN106694339A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101659175A (en) * | 2009-09-02 | 2010-03-03 | 苏州扬子江新型材料股份有限公司 | Scratching-resistant and wear-resistant color-coated steel sheet |
CN101912839A (en) * | 2010-02-10 | 2010-12-15 | 常熟华冶薄板有限公司 | Continuous processing method of printed color coated steel plates at normal temperature |
CN104723708A (en) * | 2015-04-03 | 2015-06-24 | 马钢(集团)控股有限公司 | Wood-like printing color coating steel strip manufacturing method |
CN104805951A (en) * | 2015-05-07 | 2015-07-29 | 马钢(集团)控股有限公司 | High-corrosion-resistance building color-coated plate and manufacturing method of high-corrosion-resistance building color-coated plate |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108080239A (en) * | 2017-11-14 | 2018-05-29 | 广州擎天材料科技有限公司 | A kind of preparation method of environmental protection powder coating Coil Coating Products |
CN108080239B (en) * | 2017-11-14 | 2021-06-08 | 擎天材料科技有限公司 | Preparation method of environment-friendly powder coating color-coated sheet |
CN107931074A (en) * | 2017-11-16 | 2018-04-20 | 马鞍山钢铁股份有限公司 | A kind of good environment-friendly type television backboard Coil Coating Products of processability and its production technology |
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Application publication date: 20170524 |