The hardness and wear resistance of the auto-brush electroplatedcoating are have average value near those of the manual-brush electroplatedcoating.
镀层硬度和耐磨性能等与手动纳米刷镀层性能相近，但是，其性能分布更均匀。
2
It is difficult to gain homogeneous coating when precision small holes are electroplated chrome, which affects the dimensional precision and the form precision of the product.
精密小孔在镀硬铬时，很难获得均匀的镀层，直接影响产品的尺寸精度和形位精度。
3
The methods for the recycle of silver from discarded silver electroplated wares were investigated, and the processes for the recycle and utilization of the silver coating were established.