Due to temperature differences, freeze-thaw cycles, corrosive gases, and the action of microorganisms, PE coatings can provide protection, especially suitable for interior decoration and advertising boards manufacturing.
Reliability and Safety of aluminum composite panels
The material used for curtain walls must withstand loads caused by wind and earthquakes. In order to be successfully applied to curtain walls, the aluminum composite panel should not only have features such as surface density, high strength, and good processability, but also a great deal of applied research is needed to prove it is reliable and safe as curtain wall material. Among these features, the most important one is the ability to withstand loads caused by wind and earthquakes. After the introduction of aluminum composite panels, many scientific and technical personnel conducted a large number of experimental studies such as the durability test at the corners of the aluminum composite panels and the aluminum composite panel bearing capacity test. These tests results show that under 0.5 MPa wind load condition, the alternating load acts 40,000 times, and there will be no breakage and damage at the folding angle of the aluminum composite panel, which shows that it has enough ability to resist the wind load and it is completely reliable and safe for the curtain wall.
Attentions of the aluminum composite panel:
The aluminum composite panel is a new type of material that utilizes the surface with treatment and baked with a coating. The polyethylene and polypropylene plastics are mixed as a core layer. Since the aluminum composite panel is composed of two materials (metal and non-metal) with distinct properties, it not only retains the main characteristics of the original constituent material (metallic aluminum, non-metallic polyethylene plastic), but also overcomes the deficiency of the original constituent material. , and thus obtained a number of excellent material properties such as rich in color, weather resistance, corrosion resistance, resistance to fire, moisture, sound insulation, heat insulation, shock resistance: lightweight, easy processing, easy handling, and installation. These features open a broad application prospect for the aluminum composite panel. The production of aluminum composite panels seems very simple for laymen, but in fact, it is a new product with high technical content, and therefore there is a certain technical difficulty in its quality control.
1. The quality of the aluminum supplier
Although this is a relatively hidden issue, it has already been reflected in the quality of aluminum composite panels. On the one hand, it Involves the heat treatment of aluminum materials. On the other hand, some aluminum plates producers have poor quality control when using recycled aluminum. This requires the manufacturers of aluminum composite panels conduct the material producers from various evaluations aspects, determine qualified subcontractors and then establish business contacts to ensure the quality of materials.
2. Aluminum plate pre-treatment:
The cleaning of the aluminum plate and the quality of the layer directly affects the composite quality of the aluminum plate. The aluminum plate must first be cleaned to remove oil impurities and then form a dense chemical layer on the surface in order to produce a good polymer film adhesion. However, some manufacturers do not strictly control the temperature, concentration, treatment time, and renewal of the treatment liquid in the pre-treatment process, which affects the cleaning quality.
In addition, some new production suppliers directly use aluminum plates without any pretreatment. All of these will inevitably lead to poor composite quality, low peel strength, or instability.
The choice of core material:
Because the adhesion of polymer film and PE have better performance than other plastic (Non-toxic, easy processing)and the price is also reasonable, PE is used as the core material. Some small manufacturers use PVC with poor adhesion which will cause toxic gases when burning, or use PE recycled materials or use PE materials mixed with the lower corners in order to reduce costs. The fact that the PE model, aging will result in different composite temperatures and the composite quality final long face instability.
Discoloration and decolorization of aluminum composite panel
Discoloration and decolorization of the aluminum composite panel are mainly caused by improper selection. The aluminum composite panel is divided into the indoor aluminum composite panel and aluminum composite panel two types. The surface coatings of the two types of composite panel are different, which determines their applicable occasions.
The aluminum composite panel used in the interior are generally coated with non-fluorocarbon resin coating like PE coating aluminum composite panel. This coating cannot adapt to the harsh outdoor environment. If used in outdoors, PE coating aluminum composite panel’ service life will shorten and discoloration phenomenon will also appear.
Aluminum composite panels with fluorocarbon resin coating have strong anti-aging and UV resistance is generally applied to outdoor use. Some construction companies deceived the owners to impersonate anti-aging and anti-corrosion high-quality fluorocarbon plates with indoor plates and squeezed unreasonable profits. As a result, the aluminum plates used in the project were seriously discolored.
Established in Jinhua City, it has superior in transportation. Aluminum composite panel with Jinxiang brand is now exported to the United States, Australia, Russia, Ukraine, Azerbaijan, Kazakhstan, Turkey, Iran, Kuwait, Israel, the United Arab Emirates and other Middle East countries and Southeast Asia and other countries and regions. Feel free to contact us.