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The structure of ordinary crystallized copper balls in the cast state is not fine enough, resulting in serious surface dephosphorization and extremely slow black film formation.
However, the nanocrystalline copper balls through the grain refinement process have changed the structure of the metal, improved the movement ability and diffusion ability of the grain molecules, and the elements segregated on the grain boundaries have diffused into the grains, eliminating the The grain boundary stress can be homogenized, so that the distribution of phosphorus is more uniform, and at the same time, the phenomenon of surface dephosphorization can be avoided, which truly combines the advantages of the two structures.
The anode phosphor copper film is formed quickly during the production process, and the film quality is more delicate and firm, and is not easy to fall off. The cleaning time of the anode bag and electroplating cylinder is extended, the time for maintenance shutdown is shorter, and there are fewer accidents when opening the cylinder..
There are no crystal flowers when soaked in Na2S2O8 liquid, and the crystal grains are refined; no crystal flowers are found, the distribution is even, the structure is dense, and it will not cause the surface phosphorus to fall off
The use of nano-copper balls can reduce the maintenance of the plating solution, effectively improve the utilization rate of gloss agent and plating solution, and at the same time effectively improve the quality of the plated plate. Every 1% reduction in the defective rate can create tens of thousands of yuan in revenue.
Copper rod elongation rate: RA (%) = 100 (A1-A2) /A1
Phosphorus-containing copper nanorod: ≧55% RA
General copper rod containing phosphorus: 40-50% RA
Product features: The surface is smooth and full, and the crystal flowers appear very delicate.
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Nano Copper Balls
