A treatment method for brass products before electroplating nickel
A treatment method, electroplating nickel technology, which is applied in the field of metal surface treatment, can solve the problems of easily damaged surface copper and nickel surface discoloration, and achieve the effect of reducing chemical corrosion and ensuring integrity
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Embodiment 1
[0017] Take 16kg of brass products, 4.5L of grinding liquid and 20L of water and put them into the grinding machine. The grinding liquid is composed of cold dehydration and 50% sulfuric acid in a volume ratio of 2:1, and the cold desorption is composed of xylene and scouring agent NP-9, 1 kg The ratio of xylene is 0.1L refining agent NP-9, at room temperature, grind at 50 rpm for 60min, wash the brass product with water after grinding, add 40L of 30% sulfuric acid to the flavonoid product at room temperature, wash for 4~ 6s, at room temperature, add 40L of 3% sulfuric acid to the brass product, soak for 2min, and the product is ready.
Embodiment 2
[0019] Take 20kg of brass products, 6L of grinding liquid and 25L of water and put them into the grinding machine. The grinding liquid is composed of cold dehydration and 50% sulfuric acid in a volume ratio of 2:1, and the cold desorption is composed of xylene and scouring agent NP-9. Toluene ratio 0.1L refining agent NP-9, at room temperature, grind at 50 rpm for 50min, wash the brass product with water after grinding, add 50L of 30% sulfuric acid to the brass product at room temperature, wash for 4~ 6s, at room temperature, add 50L of 1% sulfuric acid to the brass product, soak for 3 minutes, and the product is ready.
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