how to choose correct electroplating power supply

- Oct 30, 2019-

In the process of electroplating production, the correct choice of a power supply product that suits you is the basic for improving work efficiency. The following is a small selection of electroplating power supply


China Electroplating Network: In the process of electroplating production, the correct choice of a power product suitable for you is the basic to improve work efficiency. The following are the requirements for selecting a plating power supply for small series.


There are three requirements for choosing a plating power source:


First, it must meet the specifications required for the plating process, including the power level of the power supply, the waveform index, and the adjustable range of current and voltage values.


The second is the reliability of the power supply itself. This mainly refers to the rationality, safety, line characteristics and cooling methods of the structure.


Third, we must consider the price/performance ratio of its price.


Determining how large and what kind of power supply a plating and all of its plating tanks are necessary is the primary important task in implementing electroplating production. There are two methods for determining the electroplating power source in actual production: one is the volume current density method determined according to the plating solution capacity; the other is the current density per unit area method calculated according to the plated area.


The so-called volume current density is to adjust the current intensity of the entire plating tank according to the maximum current allowed per liter of plating bath to determine the maximum power of the power supply and the power of the conventional output. Copper plating is generally 0.2-0.3A/L, nickel plating is 0.1-2.5A/L, bright nickel plating is 0.3-0.35A/L, acid galvanizing is 0.5-0.6A/L, and alkaline galvanizing is up to 1.2. A/L, chrome plating is 2 ~ 3A / L. Taking bright nickel as an example, the maximum process current of a 600L plating solution can reach 0.3A/L×600L=180A, so that a power supply of 200A can be selected.


The maximum current can also be calculated from the area to be plated. Taking chrome plating as an example, if it is a 600L plating solution, the maximum current density allowed at 100 ° C is 100 A/dm 2 , and the plating tank can be plated with 10 dm 2 when fully loaded, and the required maximum output current of the power supply is 100 A/dm 2 × 10 dm 2 . =1000A, that is, to configure 1000A, 18V rectifier power supply.


After determining the power level of the power supply. According to the needs of the electroplating process and the conditions of the electroplating site, the waveform, cooling method, volume and corrosion resistance of the electroplating power source are selected, including the integration of cost factors only to balance