Color coating products for roof maintenance system
Roof maintenance system color-coated aluminum plate is a color-coated aluminum plate that integrates architectural decoration. It is used for exterior wall building enclosures such as factories, exhibition centers, large stores, airports, and railway stations. Color-coated aluminum panels used on roofs and walls, etc. Layer aluminum plate.
Due to the particularity of the roof maintenance system, it has special requirements for the substrate and coating.
The first is the aluminum substrate. The aluminum substrate is required to have high wind pressure resistance and good bending performance. At present, 3004 Al-Mn-Mg alloy is commonly used in the market. Because 3004 Al-Mn-Mg alloy has good tensile strength, it is better than ordinary 3003 1100 alloy aluminum plate is 1.5-2 times higher, and the aluminum manganese magnesium alloy aluminum plate has good ductility, which is conducive to subsequent processing and forming various shapes. As follows:
Next is paint. The coating is required to have good weather resistance to prevent sunlight, ultraviolet pulverization and oxidation corrosion of oxygen and water vapor in the atmosphere. Therefore, fluorocarbon coatings are currently used. Due to the polyvinylidene fluoride resin in fluorocarbon coatings The molecular structure is quite stable, and it has good radiation protection and aging resistance. Similarly, due to the characteristics of its organic polymer, it is not easy to be oxidized by oxygen and water vapor in the air. Under the condition of ensuring a certain film thickness, polyvinylidene fluoride The vinyl coating can guarantee the weather resistance for more than 20 years, meeting the requirements of exterior wall decorative panels.
Ceiling application color coating products
Color-coated aluminum sheets for ceilings are widely used in large stadiums, convention centers, airports, railway stations,
Buildings such as hypermarkets and interior ceiling decoration. Due to the particularity of the use of color-coated aluminum panels for suspended ceilings, the general installation
The length of the veneer is very long, the width is relatively narrow, and the decorative requirements of the gusset are different, and it will be processed into various
The bending and edge of the shape require the color coated aluminum plate for the ceiling to have a certain tensile strength and bending flexibility.
In particular, the coating is required to have good toughness, that is, the T-bend performance in the physical index, and some must reach the requirement of "0T No cracking".
Therefore, there are special requirements for substrates and coatings when producing coated aluminum panels for product roofs: moderate rigidity and flexibility, moderate tensile strength and elongation.
At present, the substrate alloy state 3003 series aluminum-manganese alloy aluminum is more suitable for the production of color-coated aluminum sheets for ceilings. It not only has good tensile strength and elongation, but also is suitable for controlling the fineness and gloss of the coating surface. . In order to meet the subsequent bending forming, deep processing, and weather resistance performance requirements, high-performance polycool coatings are generally used. Moreover, it is required that the degree of cross-linking of the polymer coating is smaller than that of the coated aluminum plate used for aluminum-plastic panels. The characteristic of polyester coating is that it is softer than acrylic and epoxy coatings, and it is more resistant to corrosion such as sunlight, oxygen, water vapor, carbon dioxide, and sulfur dioxide in the atmosphere.
Because it is used in indoor ceiling decoration, the color requirements are rich. To achieve a delicate decorative effect, polyester is more suitable than fluorocarbon coating: if you want to improve the weather resistance of the ceiling board, you can also use fluorocarbon coating. Relatively speaking, the cost will be a little higher.
Picture above: Suspended ceiling project case (Shenzhen National Taxation Building ceiling)
Color-coated products for home appliances
Color coated sheets for household appliances have both the advantages of organic polymers and sheet substrates. They have both the good colorability, formability, and corrosion resistance of organic polymers, and the ease of processing of thin sheets. It is easy to carry out cutting, bending, deep drawing and other processing, which makes the products made of this composite material have excellent practicability, decoration, processability and durability.
The products are mainly used in inner village board materials of freezers, display cabinets, display cabinets, wine cabinets and a la carte cabinets.
Color-coated sheets for home appliances can be divided into two types: pre-coated metal color sheets and post-spraying according to different coating processes. Using pre-painted metal color plate coating, its processing speed is more than 10 times that of post-post spraying, which can reduce production costs by 5%-10%, save cell source 1/6 1/5, and eliminate the environment generated during post-spraying The disadvantage of Xingmei is that the pre-coated metal color electrode cannot be welded, and the precision of the mold is high, and there is a possibility that the coating may be scratched during the nipple treatment process.
According to the different materials used, it can be divided into color-coated steel plate and color-coated aluminum plate. Color-coated steel plate substrate thickness for home appliances
Mostly 0.2-0. 8mm. The material is usually selected from DX51D+Z (general purpose), DX52D+Z (for stamping), DX53D+Z (for deep drawing) and other plated steel products, the thickness of the zinc layer is 20-120g/ ; The thickness of the color-coated aluminum plate substrate is mostly 0.3-1.0mm, and the material is usually 1100H16 (18), 1050H16 or customized 3-series substrate according to customer requirements.
According to the different parts used in the finished home appliance, the coated board can be divided into home appliance side panels, hoarding panels and inner lining panels. According to the function of the surface coating, it can be divided into antibacterial and anti-virus coating boards, anti-scratch coating boards, etc. Antibacterial coating boards are mainly used for interior panels of home appliances, such as medicine cabinets, wine cabinets, and order cabinets.
The coating film is mostly composed of polyurethane primer + polyester topcoat. For environments with high performance requirements, high-performance polyester topcoats or fluorocarbon topcoats with higher prices can be used instead of ordinary polyester topcoats. .
The topcoat coatings used for pre-roller coatings for home appliance linings are generally high-performance polyester coatings. Due to the high requirements on the surface of the inner lining board of home appliances, the selected coatings are required to be quite clean, free of impurities and particulate matter. Especially for the back coating of the home appliance inner lining, considering the affinity with the foamed polyurethane, generally choose the epoxy coating with strong polarity, so as to form a strong adhesion, reaching an affinity rate of more than 90%.
The difficulty in the coating technology of color-coated plates for home appliances lies in the first of all, the control of surface quality. For the production of color-coated plates, the key point is to ensure the surface quality of color-coated plates, which requires strict control over the selection of raw materials. The surface quality of the silver-zinc products used is required to reach FB (there must be no magic corrosion points but minor defects are allowed in a small range, such as stretch straightening marks, smooth indentations, scratches, embossing, zinc patterns, zinc flow lines , slight passivation defects, etc., the other side should at least maintain the level above the FA surface).
Secondly, in the color coating production process, the cleaning effect of the cleaning section, the production environment of the painting room, the fineness of the paint, the cleanliness of the drying box, the cleanliness of the air in contact, the water cooling equipment and the impurity content of the cooling water must be controlled to meet the standards. .
Thirdly, it is necessary to prevent scratches during the production, transportation and forming process of coated boards, and avoid scratches caused by dragging during painting, handling, slitting, transportation and sheet picking as much as possible. Cover with protective film.
Color-coated panels for home appliances are mainly used to replace traditional high-pollution, low-efficiency post-sprayed panels and embossed aluminum panels with poor aesthetics and corrosion resistance. The main types of products involved include the following:
Color coating products for doors and windows
The application of color-coated aluminum sheets on doors and windows mainly includes rolling shutter doors and windows, aluminum shutters, imitation copper and imitation titanium doors, etc.
(1) Aluminum alloy shutter doors and windows
The curtains of aluminum alloy shutter doors and windows are made of weather-resistant roller-coated aluminum plate and special structural design. No matter in terms of appearance, environmental protection or safety, aluminum alloy shutter doors have considerable advantages. The cover of the door head is generally made of alloy aluminum plate with a color matching of 0.6-0.8mm.
There are two types of aluminum-gold shutter doors and windows on the market: aluminum alloy hollow extrusion profiles and aluminum alloy filled polyurethane foam profiles. The aluminum alloy material is 3005H16 or H26, a scratch-resistant color-coated aluminum plate with a thickness of about 0.23-0.3nm.
Rolling shutter doors and windows are especially suitable for commercial facades, garages, shopping malls, hospitals, factories and mines and other public places or residences due to their light opening and closing, rich color and high-strength structural design, high weather resistance and high anti-corrosion performance.
Especially the door opening is large, and it is inconvenient to install the ground door body, which is convenient and quick to open. For example, it is used for garage doors, shopping mall fire shutter doors, hangar doors, etc.
(2) Aluminum shutters
Aluminum shutters are a kind of soft decoration for new homes. Now the newly built buildings are basically used for decoration. "Aluminum Alloy
"Golden shutters" are made into the shape of louvers. The louvers are mainly composed of aluminum alloy color plates, which have the advantages of lightness and durability. Aluminum louvers
The shutters are divided into single-layer shutters and double-layer shutters according to the shutter structure.
The production requirements of single-layer louvers are higher, the thickness of the aluminum material is only 0.18mm, and the physical properties of the substrate require good elasticity, high strength, and not easy to deform. The curtains are available in a variety of colors, textures, and specifications. The color matching design allows you to experience the individual color space and meet the individual needs of home decoration. At the same time, the surface coating of the louvers is required to have good UV resistance. Some curtains are coated with titanium oxide, which can react with ultraviolet rays to produce light purification, and have antifouling, antibacterial, deodorizing and self-cleaning effects for cleaning the air. This type Mainly used for interior installation of glass windows.
The double-layer louvers are hollow double-layer aluminum profiles, which not only have the advantages of single-layer rainproof louvers, but also because
Double-layer hollow profile structure, high strength, mainly used for external installation of slope glass sliding windows. According to the indoor temperature
or the demand for ventilation, to adjust the opening of the shutters. The adjustment of the shutters is flexible and reliable, and there is no need for year-round operation.
Lubricated with oil, no noise, good sealing performance, and also has the functions of windproof, rainproof, anti-theft and so on.
(3) Imitation copper, imitation titanium gold door
Another market for color-coated aluminum sheets used in doors and windows is color-coated aluminum sheets for thermal transfer printing. This process has been successfully applied to imitation copper,
Imitation of titanium and other interior doors and panels of anti-shock doors, the coating plate can be thermally transferred and then formed.
The application of copper-like and titanium-gold color-coated aluminum plates retains the high-end and atmospheric appearance of the copper door, and the cost can be greatly reduced. It has become a characteristic product promoted by our company in this industry.
Print color coated aluminum product
Dry-hanging stone, glass curtain wall and metal color plate are the three main materials for curtain wall decoration today. Although stone is magnificent, it is a non-renewable resource. The appearance is very different, the construction is difficult, and the price is high; the curtain wall glass has architectural aesthetic functions, but it also has some disadvantages, such as light pollution, high energy consumption, glass is easy to burst, and there is a danger of falling shadows from high altitudes; solid wood returns to the natural , but its climate is poor, flammable, perishable, etc. Out of consideration for safety and environmental protection, the Ministry of Housing and Urban-Rural Development of the People's Republic of China has restricted the application fields of stone and curtain wall glass.
The development of metal color plates from single color to multi-color will become a new trend. The color variability, construction convenience and recyclable advantages of printed plate coating products are more and more widely recognized.
Three-color printing is a new process developed to protect ecological resources and build green buildings, which can be used to print metal decorative panels with various patterns such as stone, wood, camouflage, masonry and even fabric.
Metal color plates with special patterns such as wood grain and stone grain on the market are mainly used in door industry, home appliances, electric appliances, etc.
Sub-shells and building curtain walls (such as aluminum-plastic composite panels, honeycomb panels, aluminum veneers, fire-proof and thermal insulation metal decorative integrated panels)
and other fields. The product manufacturing process mainly adopts multi-color engraving roller printing, thermal transfer printing,
Adhesive printing film and film ink printing and other technologies.
The production line of printing and color coating products adopts an independent three-color printing roller coating machine, which cooperates with our mature metal color coating machine.
Plate pre-roller coating process, relying on the leading "three-color overprinting technology" and "six-coating and six-baking color control process", it is resistant to metal
The rotten board is processed by deep printing, which can produce new decorative materials with various textures.
Product performance characteristics
Higher adhesion between the printed layer and the bottom layer
The ink can be made of polyester or fluorocarbon system, which has higher weather resistance and wider application
Compared with stone, it is suitable for stamping, bending, etc., and can be processed into various shapes
The lines are more clear, realistic and diverse, and customized colors and specifications can be provided according to customer needs
Using roller coating assembly line production, higher efficiency and more stable quality
Product application
Printed plate coating products have the characteristics of clear patterns, strong three-dimensional effect, strong coating adhesion, and excellent weather resistance, and can provide customized colors and patterns according to customer needs. It can be used alone as a decorative board, or it can be further compounded with plastic, honeycomb, and thermal insulation layers to produce aluminum-plastic composite panels, honeycomb panels, thermal insulation and decorative integrated panels, etc. It can be widely used in the fields of construction, motor vehicles, home furnishing and household appliances, etc., replacing existing decorative materials such as stone and solid wood.
