A kind of chemical treatment method of pcb electroplating copper bath
A treatment method and technology for electroplating copper, which are applied in the directions of electrolysis components, electrolysis process, cells, etc., can solve the problems of reducing the pollution degree of copper bath potion and high treatment cost, and achieve the effect of convenient adsorption and guaranteeing treatment quality.
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Embodiment 1
[0026] Pump the potion in the electroplating copper tank into the spare tank through the filter pump; add 3ml / l industrial hydrogen peroxide and turn on the blower device; and start the heating device to control the temperature in the spare tank at 70°C, and reduce the temperature to 70°C after 2 hours Add activated carbon powder to 4.5g / l at 40°C, turn off the blower device to stop air stirring; the potion turns blue after standing for 8 hours, and the whole Hastelloy plate shows In the burnt state, use the filter pump to pump the treated liquid back into the electroplating copper tank for reuse.
[0027] The specific steps for the test using the copper tank Hastelloy sheet are as follows: 1) Take 500ml of the treated potion; 2) Grind the brass sheet ((100mm*65mm) evenly with 1000-mesh sandpaper and wash it with water; 3) First remove the treated Pour the final potion into the Hastelloy tank, then put the brass sheet, connect the rectifier, connect the anode to the phosphor c...
Embodiment 2
[0030] Pump the potion in the electroplating copper tank into the spare tank through the filter pump; add 2ml / l industrial hydrogen peroxide and turn on the blower device; and start the heating device to control the temperature in the spare tank at 70°C, and reduce the temperature to 70°C after 2 hours Add activated carbon powder to 4.5g / l at 40°C, turn off the blower device to stop air stirring; after standing for 8 hours, the potion passed the Hastelloy test. When the potion was tested, the high current area was slightly burnt, but all the coatings had a layer It is misty and the solution is light green. Use a filter pump to pump the treated liquid back into the electroplating tank for reuse.
Embodiment 3
[0032] Pump the potion in the electroplating copper tank into the spare tank through the filter pump, add industrial hydrogen peroxide 4ml / l and turn on the blower device; and start the heating device to control the temperature in the spare tank at 65°C, and reduce the temperature to 65°C after 2 hours. Add activated carbon powder to 4g / l at 35°C, turn off the blower device to stop air stirring; the potion turns blue after standing for 10 hours. In the coke state, use the filter pump to pump the treated liquid back into the electroplating copper tank for reuse.
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