Magnesium alloy surface chemical nickel-plating combination solution for pre-electroplated zinc-nickel alloy
A surface chemical and electro-galvanized nickel technology is applied in the field of chemical nickel-plated composite solution on the surface of pre-galvanized zinc-nickel alloy magnesium alloy, which can solve the problems of polluted environment, toxic plating solution, poor repeatability, etc., and achieves beautiful appearance, high corrosion resistance, high bonding effect
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Embodiment 1
[0012] A kind of pre-electroplating zinc-nickel alloy magnesium alloy surface electroless nickel combined solution, said combined solution includes electroplating zinc-nickel plating solution and electroless nickel plating solution, wherein, electroplating zinc-nickel plating solution is composed of: ZnSO 4 ·7H 2 O32g / L, NiSO4 6H 2 O8g / L, sodium sulfate 43g / L, K 4 P 2 o 7 ·3H 2 O168g / L, KF18g / L, C 6 h 17 o 7 N 3 36g / L, phytic acid 0.4g / L, H 2 CSNH 2 : 6g / L, the balance is water; the electroless nickel plating solution is composed of: basic nickel carbonate 44g / L, sodium hypophosphite 66g / L, trisodium citrate 35g / L, anhydrous sodium acetate 40g / L, Sodium fluoride 7.0g / L, NH 4 HF 2 8.5g / L, thiourea 4mg / L, and the balance is water.
Embodiment 2
[0014] A kind of pre-electroplating zinc-nickel alloy magnesium alloy surface electroless nickel combined solution, said combined solution includes electroplating zinc-nickel plating solution and electroless nickel plating solution, wherein, electroplating zinc-nickel plating solution is composed of: ZnSO 4 ·7H 2 O36g / L, NiSO4 6H 2 O5g / L, sodium sulfate 47g / L, K 4 P 2 o 7 ·3H 2 O164g / L, KF20g / L, C 6 h 17 o 7 N 3 32g / L, phytic acid 0.6g / L, H 2 CSNH 2 : 4g / L, the balance is water; the electroless nickel plating solution is composed of: basic nickel carbonate 48g / L, sodium hypophosphite 62g / L, trisodium citrate 39g / L, anhydrous sodium acetate 36g / L, Sodium fluoride 8.0g / L, NH 4 HF 2 6.5g / L, thiourea 6mg / L, and the balance is water.
Embodiment 3
[0016] A kind of pre-electroplating zinc-nickel alloy magnesium alloy surface electroless nickel combined solution, said combined solution includes electroplating zinc-nickel plating solution and electroless nickel plating solution, wherein, electroplating zinc-nickel plating solution is composed of: ZnSO 4 ·7H 2 O34g / L, NiSO4 6H 2 O6.5g / L, sodium sulfate 45g / L, K 4 P 2 o 7 ·3H 2 O166g / L, KF19g / L, C 6 h 17 o 7 N 3 34g / L, phytic acid 0.5g / L, H 2 CSNH 2 : 5g / L, the balance is water; the electroless nickel plating bath consists of: basic nickel carbonate 46g / L, sodium hypophosphite 64g / L, trisodium citrate 37g / L, anhydrous sodium acetate 38g / L, Sodium fluoride 7.5g / L, NH 4 HF 2 7.5g / L, thiourea 5mg / L, and the balance is water.
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