
SN-70 Acidic Tin-Nickel Alloy Electroplating Process
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Composition and operating conditions of 2. plating solution
Nickel chloride
150-250grams/l (Best200grams/L)
Stannous chloride
10-30grams/l
ammonium bifluoride
30-60grams/l
SN-70AAdditives
80-120ml/l
SN-70BAdditives
SN-70CAdditives
120-200ml/l
10-20ml/L (Add as required)
SN-70DAdditives
0-15ml/L (Add as required)
PH
4.0-6.0(With hydrochloric acid,AAdjustment)
Temperature
50-70℃ (Best60℃)
anode
Nickel plate
area ratio of yin and yang
1:1.5~2
cathode current density
0.5-1.0A/dm2
plating time
1-4Minutes
Voltage
0.5-5V
Filtration
continuous filtration
Stirring mode
Swing or Rotation(Can't cheer up)
SN-70 Acidic Tin-Nickel Alloy Electroplating Process
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