Galvanized acid zinc process, zinc galvanized rolled galvanized zinc brightener additive

? RC-918 Acid Zinc Plating Process 1. Process characteristics: suitable for hanging the production of galvanized steel or galvanized roll: excellent dispersion capability, walk excellent, easy to burn the coating; Soft coating, high brightness, filling?? high degree of cloud point of the bath excellent;? the bath temperature is good, can work in the following 45 ℃;? high brightener concentration, low consumption;? most acidic galvanizing process can be directly added brightener, conduct turn the cylinder. 2. Bath composition and operating conditions: bath composition and process conditions linked to the scope of plating zinc barrel plating scope of 30-70 g / l 50-60 g / l potassium chloride 160-200 g / l 200-240 g / l boric acid 24-30 g / l 24-30 g / l 920 softener 25-40 ml / l 25-40 ml / l brightener 1-1.5 918 ml / l 1-2 ml / l Temperature 20-60 ℃ 20-60 ℃ PH value 5.2-6.0 5.2-6.0 cathode current density of 1-10A / dm2 1-10A / dm2 voltage 3-8 V 3-8 V 3. bath preparation method:? In preparation tank injection-thirds of water, heated to 60 ℃; desired acid was added, and stirred to completely dissolve. ? Then potassium chloride was slowly poured into the groove, stir until completely dissolved, zinc chloride and then poured into a vessel, and stirring was continued. ? After the added material, etc. completely dissolved, the solution should be clear and transparent, then add water to a predetermined volume of the solution was filtered to clean the plating bath to cool;? Finally, various additives added to the above, we can begin trial plating. The device requires the plating tank:?.? Steel tanks lined with plastic or plastic tank loop filter: filter pump can at least within one hour of the bath additive effects 5. filtered four times and added: softener 920: Can increase the flexibility of the coating to prevent the high-potential zone in the rough coating, while improving on the main light-solubilizing agent for iron impurities has a good tolerance. Brightener 918: to improve the brightness and leveling of the coating and to improve the brightness of the low-potential area coating; overdose coating becomes rough, low-potential area to walk deteriorated. 6. Consumption of additives: softener 920: 80-120 ml / KAH brightener 918: 80-120 ml / KAH 7. environmental protection and safety of persons and goods in order to avoid harm to the environment, access to product safety instructions and the environment? protection specification is necessary. The company's product safety data sheet (MSDS) contains these instructions. 8. Warranty? I provide liability guarantees within the effective range of the law for the product quality. Product quality? Customers after repackaging the product is not within my company's warranty. ? In use, regardless of the user have any questions, our technical staff will be happy to answer. 9. Color and packaging? Softener 920 is a colorless viscous liquid, with a plastic drum. Packing is 25kg / pcs. 918 brightener is a colorless or yellowish liquid, plastic barrel. Packing is 25kg / pcs.