Color coated corrugated plate is one kind of steel plate with organic coating.
There are main three kinds of corrugated plate:
*Single plate
*Color steel composite panel
*Floor deck
It is widely using at walls and roofs of large public buildings, public workshops, prefab houses, and integrated houses.
The features of the roof sheets:
*With light weight, 10-14kg/sq.m, the weight is only 1/30 of the wall brick.
*Has good thermal insulation effect, Thermal conductivity of core material: λ<=0.023-0.041w/mk
*High strength
*Bright color: no surface decoration is required, with the anti-corrosion layer of color coated corrugated plate is 10-25 years.
*Easy and fast installation, the construction period can be shortened by more than 40%.
The color coated corrugated plate have three kinds of substrates:
Cold-rolled substrates
hot-dip galvanized substrates
electro-galvanized substrates
There are many coating types as below:
polyester, silicon modified polyester, polyvinylidene fluoride, plastisol.
The surface of color steel plate can be divided into coated plate, embossed plate and printed plate.
The color can be according to the user’s requirements, such as orange, milk yellow, deep sky blue, sea blue, crimson, brick red, ivory, porcelain blue, etc.
There are three main application of the color PPGL PPGL sheet:
*Construction
*Home appliances
*Transportation
Among them, the construction industry accounts for the largest proportion, followed by the home appliance industry, and the transportation industry only accounts for a small part.
Color steel sheets for construction generally use hot-dip galvanized steel sheets and hot-dip galvanized steel sheets as substrates, and are mainly processed into corrugated sheets or composite sandwich panels with polyurethane, which are used to build steel structure workshops, airports, warehouses, freezers, roofs, walls, doors of buildings.
Home appliance color plates are generally based on electro-galvanized and cold plates, and are used in the production of refrigerators and large air-conditioning systems, freezers, bread machines, and furniture.
In the transportation industry, electro-galvanized and cold plates are generally used as substrates, which are mainly used for oil pans, automotive interior parts, etc.
Main configurations of color plate:
Common type: 470, 600, 760, 820, 840, 900, 950, 870, 980, 1000, 1150, 1200
Color: Can be according to the user’s requirements.
Structure: the front and back of sandwich panels are color-coated panels, and the middle is foam, rock wool, glass wool, polyurethane, etc., which are bonded together by imported combined glue processing.
Material: color-coated roll/color-coated board, foam, rock wool, polyurethane, etc.
Specification: color-coated plate thickness 0.18-1.2 mm, sandwich 50-200mm
Compressive strength: Anti-bending and compressive
Thickness(mm)：50-250
Length(mm): The color can be according to the user’s requirements.
Width(mm)：950 1000 1150(1200)
The 950 type corrugated color steel sandwich panel integrates corrugated board and sandwich panel, which is three times stronger than ordinary flat color steel sandwich panel. It adopts hidden self-drilling screws to connect with the roof truss, which does not damage the exposed part of the color-coated panel. , extending the life of the color steel sandwich panel; the connection between the panel and the panel adopts the button cap type, which is convenient for construction and improves the efficiency. The biggest feature is that it is not easy to seepage.
950 type rock wool thermal insulation color steel sandwich panel The core material is made of basalt and other natural ores as the main raw materials, which are melted into fibers at high temperature, added with an appropriate amount of binder, and cured and processed. This product is suitable for thermal insulation and sound insulation of industrial equipment, buildings, ships, etc. It is also suitable for ceilings and partitions in clean rooms, explosion-proof and fireproof workshops, etc.
1000 type PU polyurethane color steel sandwich panel The bonding strength of the sandwich panel is not less than 0.09MPa, the combustion performance of the sandwich panel reaches B1 level, and the bending bearing capacity of the sandwich panel is Lo/200 (Lo is the distance between the supports) When the flexural bearing capacity of the sandwich panel is not less than 0.5Kn/m, the polyurethane color steel sandwich panel is the best thermal insulation and decoration integrated panel at present.
1000 type polyurethane edge-sealed glass wool and rock wool sandwich panels are made of high-quality color-coated steel plates as surface materials, continuous cotton fiber rock wool and glass wool as core materials, and high-density rigid foamed polyurethane as tongue filling. High-pressure foaming and curing, automatic compaction of cotton, and compounded by ultra-long precision double crawler control, its fireproof effect is better than that of pure polyurethane sandwich panels. Polyurethane edge-sealed glass wool and rock wool sandwich panels are the best fireproof, thermal insulation and decorative integrated panels on the market.
How to check the quality of the color plate?
*Observe the thickness of the substrate and the peritoneum
The color steel plate is composed of a substrate and a colored peritoneum or coating. Firstly we must consider the thickness of the substrate and the peritoneal coating. The better color steel plate substrate is 0.02~0.05mm, and the thickness of the lamination or coating is often only 0.15mm or less.
Because from the perspective of affecting the use time of color steel plates, the thickness of the substrate is very important.
*Observe the edge of the color steel plate
When I get a color steel plate, I first observe whether the exposed steel of the color steel plate, such as the section, is finely crystallized, and whether it is gray, dark, or impurity. If the cut surface is a fine crystal, the quality is relatively superior.
* Listen to the sound
Tap the color steel plate with your finger or with a hard object. If the color steel plate is of poor material, the sound will be dull and the metal sound is not obvious. The metal sound of the color steel plate with better material is louder and crisper.
*Check the quality certification
The development trend of color steel plate
Firstly, the use of high-quality substrates has higher and higher requirements for the surface, shape and dimensional accuracy of the substrates.
Outdoors such as small spangle flat hot-dip galvanized steel coils and non-spangle flat hot-dip galvanized steel coils are released and keep increasing. At the same time zinc alloy hot-dip coil for indoor use such as electro-galvanized steel coil, film cold-rolled sheet and aluminum coil is also keep increasing.
Secondly, to improve the pretreatment process and pretreatment solution, with few equipment to reduce the cost is become the mainstream process, and the stability, corrosion resistance and environmental performance of the pretreatment solution are continuously improved.
Thirdly, focus on the development of new coatings, improve general polyester, polyvinylidene fluoride (PVDF) and plastisol to obtain super color reproducibility, anti-ultraviolet, anti-sulfur dioxide, and improve corrosion resistance; Thermal and other functional coatings.
Fourthly, as the cost of cold embossing is lower than hot embossing, and has the characteristics of beauty, three-dimensionality, and high strength, cold embossing production technology has become a development trend.
Fifthly, pay attention to the diversification, functionalization and high-grade of products, such as deep-drawing color-coated boards, “pomelo peel” color-coated boards, anti-static color-coated boards, pollution-resistant color-coated boards, high heat-absorbing color-coated boards, etc. .
Color steel plate coating is a product made of cold-rolled steel plate and galvanized steel plate, after chemical treatment on the surface, coating (roll coating) or composite organic film (PVC film, etc.), and then baking and curing. Some people also call this product “pre-rolled color steel plate” and “plastic color steel plate”. Color plate products are produced in coils by manufacturers on a continuous production line, so they are also called color-coated steel coils. Color steel plate not only has the properties of high mechanical strength and easy forming of steel materials, but also has good decoration and corrosion resistance of coating materials. Color steel plate is an emerging material respected in the world today. With the advancement of science and technology, the enhancement of environmental awareness, and the improvement of people’s living standards, color steel prefab houses are increasingly showing strong vitality and broad market prospects. and other industries.
The color steel prefab house has the advantages of light weight, high strength, thermal insulation, beautiful and durable, etc. It is a high-level building and installation that integrates construction and decoration. The color steel prefab house is clean in construction and is widely used in large-span workshops, warehouses, office buildings, villas, roof additions, air purification rooms, cold storage, shops, kiosks and temporary housing. Light-colored steel EPS sandwich panels with a square meter weight of less than 14KG can fully reduce the structural load and reduce the structural cost of the prefab.
1. Convenient installation: The color steel prefab house is light in weight, spliced installation and can be cut at will, which determines the ease of installation of the prefab house, which can greatly improve the efficiency and save the construction period. The surface material and thermal insulation material of the fireproof color steel plate sandwich panel are non-combustible materials, which can fully meet the fire protection requirements of the prefab house.
2 Durability: Various studies have shown that it has been widely used in foreign countries for more than 40 years. The shelf life of color steel plates treated with special coatings is 10-15 years. After that, anti-corrosion coatings are sprayed every 10 years.
3. Beautiful appearance: The clear lines of the profiled color steel plate can be as many as dozens of colors, which can meet the needs of any style of prefab buildings and achieve satisfactory results.
4. Thermal insulation: The common thermal insulation materials of the color steel plate composite board are: rock wool, glass fiber wool, polystyrene (EPS), polyurethane (PU), etc., with low thermal conductivity, so the prefab house has a good thermal insulation effect. High-strength color steel plate uses high-strength steel plate as the base material (tensile strength 5600kg/cm) plus the most advanced design and roll forming. Therefore, the color steel prefab house has excellent structural characteristics.
