Coil Coating Aluminium
was carried out around the basis of your Air-Conditioner Foil after surface
remedy, and as well as the should the needs on the High Grade Aluminum, such as
chemical composition, mechanical properties and geometry size overall
performance indicators, coating aluminum foil also must has very good plate
variety 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 little, then in further processing and use with the
coating aluminum foil the surface film of it will fall off easily, and
therefore seriously affects the weight in the coating aluminum foil, so hence
it needs coating adhesion to become superior. Normally only qualitatively the
coating adhesion test, the primary test strategy of friction resistance test,
the test and cup drawing system, and so on.
(two) The hydrophilic property of Coated
Aluminum Coil: following a time period hydrophilic aluminum foil becoming
in use, as a result of different environmental things and the effect of the
surface hydrophilicity, it may be affected. Consequently, hydrophilic home can
be commonly divided into early hydrophilic house and hydrophilic house soon
after environmental test. The normal of your hydrophilic home primarily is
measured by the size of a horn. Measurement of contact angle can choose special
contact angle measurement instrument; However it may also be calculated by a
particular volume of water droplets within the location with the surface in the
aluminum foil size.
(three) Corrosion resistance:
Corrosion resistance of Aluminum Foil
China is primarily manifested in 3 elements: one will be the alkali
resistance. Because of the surface of your lubricating oil must use alkaline
cleaner to take away, so it demands function coating around the surface on the
aluminum foil will have to have particular alkali resistance, basic essential
to not play bubbles immediately after becoming socked in 20% NaOH resolution;
Second, salt fog, typically implies that in the test conditions of 3% salt
spray atmosphere of 35 oC, it requires its corrosion resistance can not have
corrosion spots for 500 hours. The excellent of salt fog corrosion resistance
is straight related to the length of service life. In coastal places, on
account of the high salt content inside the air, you will discover higher needs
for the salt fog corrosion resistance of heat-exchange piece; Third, it is
actually wet and heat resistance, that namely within a particular temperature,
the corrosion resistance of particular humidity which has been stored for any
extended period. The overall performance can also be measured in hot climate
resistant capacity of an essential indicator.
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