The key indicators of air-conditioner foil

Coil Coating Aluminium was carried out on the basis on the Air-Conditioner Foil immediately after surface treatment, and as well as the must the needs around the High Grade Aluminum, for instance chemical composition, mechanical properties and geometry size performance indicators, coating aluminum foil also should really has fantastic plate kind and coating properties.

(1) Coating adhesion: coating adhesion is indicator of Aluminium Foil Roll and its surface coating adhesive fastness. If the coating adhesion is also smaller, then in additional processing and use with the coating aluminum foil the surface film of it is going to fall off simply, and therefore seriously affects the weight from the coating aluminum foil, so therefore it calls for coating adhesion to be much better. Commonly only qualitatively the coating adhesion test, the main test technique of friction resistance test, the test and cup drawing strategy, and so forth.

(two) The hydrophilic house of Coated Aluminum Coil: right after a period of time hydrophilic aluminum foil getting in use, as a result of different environmental components plus the effect of your surface hydrophilicity, it may be affected. Hence, hydrophilic home might be frequently divided into early hydrophilic house and hydrophilic property immediately after environmental test. The common from the hydrophilic home primarily is measured by the size of a horn. Measurement of speak to angle can select unique make contact with angle measurement instrument; Nevertheless it also can be calculated by a certain volume of water droplets in the location with the surface in the aluminum foil size.

(three) Corrosion resistance:

Corrosion resistance of Aluminum Foil China is mostly manifested in three elements: a single could be the alkali resistance. As a result of the surface with the lubricating oil need to use alkaline cleaner to remove, so it demands function coating on the surface of the aluminum foil should have particular alkali resistance, common essential not to play bubbles right after becoming socked in 20% NaOH answer; Second, salt fog, usually means that inside the test circumstances of 3% salt spray atmosphere of 35 oC, it demands its corrosion resistance cannot have corrosion spots for 500 hours. The good quality of salt fog corrosion resistance is directly associated with the length of service life. In coastal places, resulting from the higher salt content material inside the air, you will discover larger specifications for the salt fog corrosion resistance of heat-exchange piece; Third, it can be wet and heat resistance, that namely inside a specific temperature, the corrosion resistance of particular humidity which has been stored for a long period. The performance is also measured in hot climate resistant capacity of a crucial indicator.