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一、工作电压的确定与电流的控制刷镀时,工作电压的高低,直接影响着溶液的沉积速度和镀层的质量。当确定了合适的相对运动速度后,若在高电压下进行刷镀,则在相同的除油时间内,渗入基体表层的氢就多一些;在镀金属层时,会使镀液沸腾、飞溅,使阳极烧损严重,并且镀层粗糙发黑,甚歪过热税落。若电压太低时,则沉积速度太慢,使镀层性能下降。为了保征得到高质摄的镀层和提高生产率,针对每一种镀液在作各种不同用途使用时,经过反复的工艺性试验后,确定出如表1中的最佳电压调节范围。
First, determine the working voltage and current control Brush plating, the level of voltage, a direct impact on the deposition rate of the solution and the quality of the coating. When determining the appropriate relative speed of motion, if brushing is carried out at high voltage, the hydrogen that penetrates into the surface of the substrate will be more in the same degreasing time; in plating the metal layer, the plating solution will boil and splash , So that the anode burned serious, and coating rough black, very crooked heat tax fall. If the voltage is too low, the deposition rate is too slow, so that coating performance degradation. In order to ensure the quality of the coating obtained and improve productivity, for each bath in a variety of different uses, after repeated technical tests to determine the best voltage adjustment range in Table 1.