Non-cyanide alkaline bath for zinc coating of steel products and method for electrolytic zinc coating of steel products in that bath

摘要

the object of the application is to bezcyjankowa electrolytic zinc alkaline bath with shine steel products both method zawieszkowu0105 and tumble drier containing soluble zinc compound, sodium hydroxide and appendix blaskotwu00f3rczy characterised by that zawier a 14 - 50 g / dm3 zinc oxide, 100 - 500 g / dm3 sodium hydroxide, 0.53 - 13,73 cm3 / dm3 medium gloss, 0,40 - 0.70 cm3 / dm3 appendix blaskotwu00f3rczego, 10,74 - 15,74 cm3 / dm3 softener 0,03 - 0,15 g / dm3 reducing agent aqueous solution pirogalolu with sodium hydroxide, or 5 g / dm3 sodium ascorbate, or 0.1 - 3 g / dm3 ascorbic acid.in this medium gloss bath provides 1-chloro-2,3-epoxypropane, appendix blaskotwu00f3rczy provides bisulphate (iv) disodium, the softener is sodium silicate aqueous solution, while reducing pirogalolu sodium hydroxide is the mixture of 25% aqueous solution pirogalolu with 35% aqueous roztwore m sodium hydroxide in a mole ratio of 1: 4.the object of the application is also a way of electrolytic zinc shine steel products.