When the hydrophilic aluminum foil is used as a heat exchanger, the coating properties such as adhesion, corrosion resistance and hydrophilicity are required during processing and use. In order to ensure the coating performance of the hydrophilic aluminum foil, cleaning before coating Preprocessing is especially important. Through neutral salt spray test, adhesion test and continuous hydrophilicity test, etc., the formulation and optimization control of the pretreatment process parameters of the hydrophilic aluminum foil were analyzed. Score), degreasing liquid temperature 20~40℃, pH 10~13, hot water cleaning temperature 40~60℃, and the cleanliness of the aluminum foil surface after treatment with a dyne value ≥ 56 can meet the production needs of hydrophilic aluminum foil.
Hydrophilic aluminum foil pretreatment process
The performance advantages of hydrophilic aluminum foil for heat exchangers:
1. It can increase the anti-corrosion, anti-mold, and no-odor functions;
2. The condensed water accumulated on the surface of the heat exchange fins is evenly distributed on the surface, and the accumulation and blockage between the heat exchange fins will not be caused by the formation of water droplets, which will affect the heat exchange conditions, thereby increasing the heat exchange rate by 5%;
3. Since the water has no beads, the noise caused by vibration is correspondingly reduced;
4. It can prevent the oxidized powder of the air conditioner from being blown into the room and have adverse effects on the human body, which meets the requirements of environmental protection;
5. The hydrophilic aluminum foil used for the heat sink of the air conditioner shall comply with the provisions of YS/T95.2---2001.
MC Aluminum is a professional manufacturer of aluminum foil. The hydrophilic aluminum foil alloys produced are 1060, 1100, 8011, etc. The products have multiple advantages of clean oil removal, no black silk, no bright lines, and no holes. Complete models, fast delivery, large output, export overseas, product guarantee, customers can rest assured to order!