一.Product description : LT - 502 cobalt dedicated to the printed circuit boards and electronic components required hardness, wear resistance and solderability, such as special use, lower contact resistance, corrosion resistance, color stability, the purity of 99.9% gold plating.
二. The operating conditions :
Optimal
The salt (68%) 2 g / L 1 - 6g / L
The proportion of 11Be ° above 9-18Be °
PH 4.4 4.2-4.8
45 ° C temperature 40-50 ° C
Current density 10ASF 5-15ASF
Positive area ratio 1:1
Mixing swing filtration cycle
Quartz or 10.25 Heater
三.Three open cylinder :
LT - 502 cobalt on the cylinder open on the 1st 120 grams / liter
LT - 502 cobalt on the cylinder open on the 2nd of 66 ml / liter
LT - 502 cobalt gold supplements 2.2 ml / g of the salt
The salt (68%) 2 grams / liter
四. Bath maintenance :
1. 480 amperes per minute, added 45.5 grams of gold salt, LT - 502 cobalt supplementation 100 ml of the conductive salt and no tax for most states;
2. The use of LT - 502 conductive salt maintain stability Baume degrees about 15 grams / liter increase the proportion of 0.01;
3. Each upgrade PH0.1, increase drug-test potassium hydroxide 1.5 grams / liter, each reducing the Hard PH0.1 PH adjustment of 4.5 grams of salt / liter. |
