2020-10-29
| Electroplating is an electrochemical processing method, which is a process in which the metal ions in the electroplating solution reduce the metal coating on the surface of the material by supplying electrons with a power source. So, what is the role of sodium tungstate in the electroplating process? Gaoxin Electroplating will answer for you today! Sodium tungstate mainly acts as an accelerator in the electroplating process, and the specific performance is as follows: (1) Tungstate has strong oxidizing properties in acidic phosphating bath and has a good corrosion inhibition synergy with the main components of the phosphating bath. (2) Tungstate is an ideal metal oxidizing accelerator for phosphating at room temperature. It not only has the acceleration effect, but also has the effect of corrosion inhibition, activation and reduction of film weight, thereby forming a dense phosphating film. (3) Tungstate can not only improve the protective and coating properties of the phosphating film, but also reduce the consumption of active ingredients in the phosphating bath and reduce the generation of sediment. In short, the solution has good stability, long service life, simple operation and easy adjustment. (4) Tungstate accelerator does not need to be used in combination with other oxidants to quickly form a film, and does not require surface adjustment. This also shows that the use of sodium tungstate as an electroplating accelerator can effectively reduce processes, improve production efficiency, and have simple formula ingredients. (5) Phosphating bath containing tungstate accelerator is more advantageous in a solution with dissolved oxygen than a solution without. Sodium tungstate products are produced by the reaction of tungsten trioxide and sodium hydroxide, or the use of tungsten concentrate and sodium hydroxide to produce a sodium tungstate solution, which is refined, filtered, and ion exchanged to separate impurity components, and then evaporated Made by crystallization. In addition to anti-corrosion of electroplating coatings, it can also be used for mordants, analytical reagents, catalysts, water treatment agents, manufacturing fireproof and waterproof materials, as well as phosphotungstate and borotungstate. You can contact Ningbo Gaoxin Electroplating Co., Ltd. to solve the electroplating problem for you. Gaoxin Electroplating focuses on providing electroplated zinc (blue and white zinc/black zinc/color zinc), zinc nickel alloy, anodizing, hard oxidation, conductive oxidation, High-quality electroplating services such as color oxidation, pickling and passivation. |
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浙公网安备 33022502000282号
