36results about How to "Increase dyne value" patented technology

The present application relates to a kind of non-silicon non-etching scale removers for 7 series aluminum alloy surface, which is applicable to the field of aluminum alloy cleaning technology in environmental-friendly metal surface treatment technology, and more specifically, the scale remover comprises the following components with the following concentrations: 3000-5000 ppm of boron-containing compounds; 500-2000 ppm of polyhydroxy-containing compounds; 200-400 ppm of acrylic compounds; 300-600 ppm of corrosion inhibitors; 300-600 ppm of accelerators; 1000-2000 ppm of surfactants; and tap water in the remainder.The pH value of the scale remover is 9.5-10.5.The scale remover does not contain strong alkali, silicon, phosphorus, fluorine, nitrate or nitrite, and any toxic heavy metal, and is applicable to immersion or spraying.The treatment temperature is 50°C, the treatment time is 5-10 minutes for immersion and 1-3 minutes for spraying, and the scale remover can improve the daoyin value, color (Lab value) and gloss of the substrate surface, meet the current environmental protection and use requirements, and has good market prospects.