The primary indicators of air-conditioner foil

Coil Coating Aluminium was carried out on the basis with the Air-Conditioner Foil after surface treatment, and in addition to the must the specifications on the High Grade Aluminum, for instance chemical composition, mechanical properties and geometry size performance indicators, coating aluminum foil also need to has very good plate form and coating properties.

(1) Coating adhesion: coating adhesion is indicator of Aluminium Foil Roll and its surface coating adhesive fastness. In the event the coating adhesion is also compact, then in additional processing and use from the coating aluminum foil the surface film of it can fall off very easily, and hence seriously impacts the weight of the coating aluminum foil, so thus it demands coating adhesion to become better. Normally only qualitatively the coating adhesion test, the principle test approach of friction resistance test, the test and cup drawing system, and so on.

(two) The hydrophilic home of Coated Aluminum Coil: soon after a period of time hydrophilic aluminum foil getting in use, as a result of many environmental elements along with the effect with the surface hydrophilicity, it can be impacted. Hence, hydrophilic house could be commonly divided into early hydrophilic property and hydrophilic house after environmental test. The typical in the hydrophilic home primarily is measured by the size of a horn. Measurement of speak to angle can pick out unique make contact with angle measurement instrument; Nevertheless it also can be calculated by a specific volume of water droplets within the area in the surface from the aluminum foil size.

(3) Corrosion resistance:

Corrosion resistance of Aluminum Foil China is primarily manifested in 3 elements: a single may be the alkali resistance. Due to the surface of your lubricating oil should use alkaline cleaner to eliminate, so it demands function coating on the surface of your aluminum foil have to have certain alkali resistance, basic required not to play bubbles right after becoming socked in 20% NaOH answer; Second, salt fog, normally means that within the test circumstances of 3% salt spray environment of 35 oC, it needs its corrosion resistance can't have corrosion spots for 500 hours. The top quality of salt fog corrosion resistance is straight associated with the length of service life. In coastal locations, because of the high salt content inside the air, you'll find higher requirements for the salt fog corrosion resistance of heat-exchange piece; Third, it is actually wet and heat resistance, that namely inside a specific temperature, the corrosion resistance of certain humidity that has been stored to get a lengthy period. The efficiency is also measured in hot climate resistant capacity of an important indicator.