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Aluminum Foil For Flexible Duct
Building energy conservation is a social issue that is highly concerned by the society at present, among which the energy consumption of air conditioning and ventilation systems in modern buildings is an important aspect of building energy conservation. Rigid phenolic foam sandwich panel with aluminum foil surface has been widely used in the production of air ducts for air conditioning and ventilation systems as a new type of thermal insulation material in recent years.
The Aluminum Foil For Flexible Duct is now the rolling surface, it should be flat and clean, no defects such as corrosion, holes, folds, brown oil spots, slits, etc. that affect the use are allowed, and slight oil marks, waves, wrinkles, and imprints that do not affect the use are allowed. exist.
The unevenness of the coated strip: when the wave distance is not greater than 500mm, the wave height does not exceed 4mm; when the wave distance is greater than 500mm, the wave height does not exceed 6mm.
The coated strip should be rolled tightly, the coil layer should not be larger than 2mm, and no tower is allowed.
The end face of the coated strip is not allowed to have bird's nests with a width greater than 10mm and a length greater than 15mm. The total number of bad bird's nests on one side of the mesh shall not exceed 2.
The leakage of the decorative blood coating on the unilateral edge should be less than 10mm, and the leakage of the composite blood coating on the unilateral edge should be less than 6mm.
Each roll of tape is allowed to have one joint, and the joint can only be overlapped and marked on the end face.
The coating surface is not allowed to have large-area leakage, oil spots, corrosion, and the total length of continuous wrinkles exceeds 5% of the total length of the finished product.
Defects such as chromatic aberration bars, mottles, bubble bars, and periodic prints that are not obvious under natural light conditions.
The die is greater than or equal to the foil width, and the die is not allowed to be recessed into the foil roll.
Aluminum Foil For Flexible Duct strip size measurement method
The thickness can be measured with a micrometer with an accuracy of 0.01mm-0.001mm (other measuring instruments with the same accuracy can be used). Thickness arbitration measurement is carried out according to the method specified in GB/T6608. Other dimensions are measured with a measuring tool that can guarantee the corresponding accuracy.
The room temperature tensile test, water brushing test, surface wetting tension, pinhole, adhesion, burst strength, water vapor permeability and DC resistance of aluminum foil are tested according to the methods specified in YS/T455.
What is the difference between Double Layer Aluminum Foil For Flexible Duct Manufacturing and PVC Ventilation Hose? There is no difference in usage. It's just that PVC is easy to age and may break after a few years. Aluminum foil will not age.
