Foshan aluminum anodizing line sealing oxidation process

Foshan anodized aluminum oxide sealing process line ultrasound equipment company Shenzhen Elcoteq quality manufacturing, oxidation equipment, plating equipment, ultrasonic cleaning equipment, professional-quality reliable! First, Foshan anodized aluminum oxide sealing process line basic introduction anodized aluminum equipment are semi-automatic and manual three production methods, the process is similar. Since the anodic aluminum oxide film has a lot of holes, the surface adsorption strong hand touch feeling sticky hand. To improve the pollution of the oxide film and corrosion resistance, sealing is essential step. Second, Foshan anodized aluminum oxide sealing process introduce the relevant line Process sealing: the sealing anodic aluminum oxide films are mainly two kinds of heat sealing and cold sealing, China basically using cold sealing. As the film thickness increases and sealing quality. Per ton of aluminum cold sealer consumption increased from 0.8 ~ 1.2kg 1.5 ~ 2.0kg. Nickel fluoride is the main component of cold sealing agent, and therefore determines the quality nickel fluoride cold sealer quality. Nickel fluoride, iron, zinc, copper and other impurities in the new bath with little effect, but the production period of time, it is difficult to ensure sealing quality. Cold sealing of the pH value of 5.5 to 6.5 previously considered appropriate, in fact, should be determined according to the formula features cold sealing agent. New bath with pH value is generally 5.3 to 7.0 can be successful, but adjusted with ammonium fluoride or ammonium bifluoride old grooves fluoride ion, ammonium ions due to the influence of, pH value should be controlled at 6.5 to 7.1 preferred. In this case sealing speed, low fluorine consumption, does not appear "bald" phenomenon. Sealing groove ammonium ions than sodium ions from the powder is not easy, but sealing slower. 3. In order to ensure sealing quality, Foshan aluminum anodizing line sealing process oxidation process operating points are as follows: (1) The anodizing temperature is generally less than 23 ℃, high temperature, cold sealing agent consumption, surface 'hair green. " (2) After the anodization should be washed with water, stay plugged in after affects of oxidation tank. Wash clean easily lead to channeling liquid pollution, increased sealing groove fluoride consumption. (3) off the sealing groove of aluminum and aluminum wire should be removed, otherwise it will accelerate the increase in pH and fluoride consumption. Foshan anodized aluminum oxide sealing process line ultrasound equipment company Shenzhen Elcoteq quality manufacturing, oxidation equipment, plating equipment, ultrasonic cleaning equipment, professional-quality reliable!