Новости PCB - способ вычисления размеров ванны для печатных плат

соотношение размеров образец PCB electroplating bath and the average loading capacity, плотность катодного тока, volume current density, сорт.;

образец PCB Вообще говоря, the size of the electroplating tank refers to the volume L of the electrolyte in the plating tank, также известный как эффективный объём, То есть, the length of the inner cavity of the electroplating tank X the width of the inner cavity X the depth of the electrolyte;

образец PCB can generally be calculated and matched according to the electroplating processing volume or the existing DC electroplating equipment and other conditions;

Choosing the appropriate size of the electroplating bath is of great significance for preparing production plans, оценка производственных мощностей для обеспечения качества гальванизации;

для определения размера гальванической ванны используются следующие три соображения:

1. Meet the size requirements of processed parts;
2. Prevent the electrolyte from overheating;
3. аble to maintain a certain stability of electrolyte components during the electroplating production cycle;

The current density of the cathode and anode is calculated based on the total area actually immersed in the electrolyte. There is a slight difference due to the difference in the current efficiency of the cathode and anode;
DA=I total/S Yin (A/dm2)
DA=I total/S Yang (A/dm2)
Average loading d: the volume of electrolyte needed for electroplating parts per unit area
is d=V/S(L/ dm2)
Volume current density DV:
The current intensity per unit volume is: DV=Itotal/V(A/L)

образец PCB технология гальванизации важна для надлежащего регулирования плотности объемного тока, because the current through the electrolyte will generate heat due to the resistance of the solution, приводить к повышению температуры электролита, and the speed and level of the electrolyte heating up are directly related to the volume current density. чтобы предотвратить перегрев электролита, a larger volume of electrolyte is necessary to reduce the volume current density;

Such as acidic bright copper plating process: The appropriate volume current density is 0.3 - 0.4A/L, that is, когда общий ток составляет 1000а, 2500-3000L electrolyte should be equipped;

Эмпирические данные:

образец PCB The following data is some empirical data related to the cathode current density and average loading of various common plating species:
Plating species Cathode current density range DK, A/ dm2 Average loading d, L/ dm2
Sulphate copper plating 1.0 - 3.0 7---9
Acid tin plating 1.0 - 3.0 7---9
Bright nickel 2.0 - 4.0 6---8
Nickel 1.0 - 1.5 6---8

The above is an introduction to the calculation method of the size of the circuit board electroplating tank for образец PCB. Ipcb также предоставляет Производители PCB and PCB manufacturing technology