At present, there are two types of ceilings for ceilings: one is called traditional ceiling, and the other is integrated ceiling or integral ceiling. The former is purely concerned with the overall style matching of the ceiling materials and the electrical appliances and rooms associated with the ceiling. The latter is the integrated ceiling in addition to the quality of the product, color, process, but also pay attention to the effect of the kitchen and bathroom appliances, and can meet the needs of different decoration styles.
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First, the development history of ceilings
1, the first generation of products for gypsum board, mineral wool board
Gypsum board uses gypsum as the main material, adding fibers, adhesives, and modifiers, and mixing and pressing to dry them.
Advantages: easy to shape, low price
Disadvantages: not easy to scrub, a single color, easy to change color, complex installation.
2, the second generation of PVC
Full name is Polyvinylchlorid, the main ingredient is polyvinyl chloride, bright color, corrosion resistance, strong and durable, due to the addition of plasticizers, anti-aging agents and other toxic auxiliary materials in the manufacturing process to enhance its heat resistance, toughness, extension Sex etc.
Advantages: It has non-flammability, high strength, weatherability and excellent geometric stability, and has strong resistance to oxidants, reducing agents and strong acids.
Disadvantages: It can be eroded by concentrated oxidizing acids such as concentrated sulfuric acid and concentrated nitric acid, and it is not suitable for contact with aromatic hydrocarbons and chlorinated hydrocarbons. It is not environmentally friendly, easily discolored, poor in oxidation resistance, moisture-proof, and non-fireproof.
3, the third generation product is a metal ceiling
Aluminum aluminum ceilings are commonly used in metal aluminum ceilings: aluminum or aluminum alloy materials as the substrate, and then processed on the surface after a different surface treatment process.
Advantages: fire, moisture, acid and alkali, oil smoke, easy to clean, environmentally friendly, recyclable, rich colors.
Disadvantages: The price is more expensive than other materials.
Second, the development prospects of aluminum buckle smallpox
Due to the large number of aluminum buckle plate types, smooth lines, rich colors, good appearance, and more fire-proof, moisture-proof, easy to install, easy to clean, etc., designers and customers can choose the ceiling of the ceiling according to the color of the furniture and the floor color. Welcomed by consumer goods, it has now been recognized by the world. It has been a long time since the development of ceilings from plasterboards, mineral wool boards, PVC, and aluminum buckle boards. When the aluminum buckle plate was first introduced, it was only a spraying plate, and later it developed into a roller coating and then a coating film (more of which was used for home decoration.) This coating is a PVC film on the market and a PET film is produced in Japan. In view of environmental protection, the outlook for aluminum buckling boards in the next few years is very good.
Third, the market ceiling brand
Currently, there are many aluminum buckle plate manufacturers on the market. In the supermarkets, foreign well-known brands mainly include “Leslon of the Netherlands†and “Simon of the United Statesâ€. The famous domestic brands mainly include “Bellemingâ€, “modern†and “Xifeiâ€. "Wait. In fact, most of the so-called imported brands use imported technology and imported production lines. Their production processing plants and raw materials are all domestic.
IV. Main factors determining the quality and price positioning of aluminum buckles
The aluminum materials used for the ceiling are all aluminum alloys and it is impossible to have pure aluminum. However, due to the different alloy contents and the different mechanical properties of aluminum alloys, the aluminum alloys currently used in domestic ceiling materials are divided into five grades:
The first grade: aluminum-magnesium alloy, also contains part of manganese, the biggest advantage of this material is good anti-oxidation ability, at the same time because of the content of manganese, so it has a certain strength and rigidity, it is the best material for making smallpox. The performance of aluminum processing in the Southwest Aluminum Factory in China is the most stable.
Second grade: aluminum-manganese alloy, the strength and rigidity of this material is slightly better than aluminum-magnesium alloy. However, the antioxidant capacity is slightly lower than that of aluminum-magnesium alloys. If both sides of the protective treatment, basically to solve its anti-oxidation ability is not as good as aluminum-magnesium alloy good shortcomings, the domestic Ruiye aluminum aluminum processing performance is the most stable.
The third grade: aluminum alloy, the alloy has less manganese and magnesium content. Therefore, its strength and rigidity are significantly lower than aluminum-magnesium alloys and aluminum-manganese alloys. Because it is soft and easy to process, as long as it reaches a certain thickness, it can basically meet the most basic flatness requirements of smallpox. However, its antioxidant capacity is obviously inferior to aluminum-magnesium alloy and aluminum-manganese alloy. And it is easy to deform during processing, transportation and installation.
Fourth grade: ordinary aluminum alloy, the mechanical properties of this material is not stable.
The fifth grade: The raw material of this kind of plate is the aluminum processing plant melting aluminum ingots into aluminum plates and does not control the chemical composition at all. Due to the uncontrolled chemical composition, the properties of these materials are extremely unstable, leading to serious irregularities on the surface of the product, deformation of the product, and extreme oxidation.
From the above points on the classification of raw materials, we can easily analyze the quality assurance of each type of ceiling molding. The best aluminum gussets, their main raw materials are used in the southwestern aluminum-magnesium alloy plate and Raychem aluminum aluminum-manganese alloy plate. Now many people think that the thicker the plate is, it can be understood through the above analysis of several raw materials, if the same raw materials, then the thicker the better the plate, but if the plate is the fifth grade, then thick is not. Another surface treatment, some manufacturers do not achieve a certain thickness of raw materials, but in order to pursue the thickness of the statement, in the surface treatment, spray a layer of paint. Ordinary consumers do not have a good understanding of the material of the original plate when they purchase the aluminum pinch. The simplest way is to feel the strength and hardness of the aluminum plate by hand.
Fifth, surface treatment analysis
At present, the ceiling surface treatment mainly includes: coating, roller coating, and spray coating. Among them, the coating film is the best.
The current good coating material is a product of South Korea's "LG" company. The film is mainly used for household appliances such as refrigerators and washing machines before it is used for smallpox. After many years of testing, its performance is stable and it fully guarantees that it will not change its color in 15 years. Nowadays, there are many ceiling surface treatments in the market, which are also known as laminations. However, it is a kind of domestic film, and the molded plate is called a plastic laminate plate. There is also a pearlescent plate, which looks almost like a laminated plate, but it is not a membrane at all. It is only in the electrostatic spraying process that pearlescent powder is added to the paint beforehand. This kind of plate is prone to chromatic aberration, and after two to three years, it will change color and lose paint.
Roller-coating is a composite metal plate with a primer and a top coat painted on the front and painted on the back.
The first generation of products: The surface treatment process of the sprayed board is as follows:
Semi-finished products - Degreasing - Cleaning - Chromating - Drying (drying) - Electrostatic powder coating - Curing, cooling - Next parts and inspection - Packaging storage.
The surface of the painted board with better surface is coated with “epoxy resin†electrostatic powder supplied by “Akesu†Coating Co., Ltd. The adhesion is grade 1, the gloss is 18 degrees, there is no color difference, no air bubbles, no product particles, and weather resistance (indoor 10)
A good spray plate is passivated before surface spraying. Any part of the surface is crossed with a sharp blade to draw a small 1MM*1MM grid. It is peeled off with a medical tape and the coating is not peeled off. The surface is not damaged after washing 100 times.
The second generation of products: The surface treatment process of roller-coating plates is as follows:
Roller-coatings have topcoats, primers, backcoats, and backcoats are primarily antioxidants that make them last longer.
Semi-finished products - on the machine - forming - the next piece and inspection - packaging storage.
Roller-coated surface is uniform, smooth, no leakage coating, shrinkage holes, scratches, falling off and other obvious defects. However, there are trace defects such as bubbles, pits, and inclusions on the surface. These are normal phenomena.
The third generation of products: the surface treatment process of the coated sheet is as follows:
The surface treatment and the process flow of the coated sheet are the same as those of the precoated sheet, except that the surface of the coated sheet is (PVC film);
The surface of the film is firmly bonded, free from wrinkles, scratches, detachments, and missing stickers. However, the surface is allowed to have a small amount of micro-wrinkles, concavities, and other defects within 0.2 mm on both sides of the width direction.
From the above, it can be basically seen that the inner quality of the aluminum buckle plate is determined by the aluminum substrate and the surface treatment process.
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