6000A switching mode power supply

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Rectifier 6000A

Parameters:

Input voltage: Three phase AC380V±15% or single phase AC220V±15% 50Hz 60Hz;
Output current: 0-20000A  optional 100%continuously adjustable designed by your requirements;
Output voltage: 0-400V optional 100%continuously adjustable designed by your requirements;
Output range: Output voltage:0~rated value. (no limited);
Output current: 0~rated value.( no limited);
Efficiency: More than 90%;
Control mode: PWM Pulse control;
Cool mode: Forced by air cooling;
Voltage stability: Within1%;
Current stability: Within1%;
Control accuracy: Rated value within±1%;
Operation mode: Constant voltage, Constant current, output adjustment, ON/OFF, soft start and so on.Designed by your requirements;
Work load: 100% full load continuous running, If more than 1,000 meters above sea level, it will be reduced load operation;
Working condition: Indoors better with ambient Temperature range from -10 °C to 40 °C is good for device ,Less than 90% humidity(when ambient temperature is 20°C±5°C);
Display: Digital meters or touch screen, Ampere hour meter, timer alarm ,etc, Designed by your requirements;
Signal interface: PLC 4-20mA, 0~5V, 0~10V, RS485 or RS232 Designed by your requirements;
Complete functions: The self-protection function of over current, short circuit,overheating, phase lack, etc. Easy to maintain;
Warranty: At least One year from delivery against manufacturing defects, material defects and workmanship fails. Warranty does not cover mishandling, misuse and any operation outside working conditions;
Reasonable design, more safe and durable, separate from the harsh environment.

Portable plating experimental power supply

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Portable plating experimental power supplyPortable plating experimental power supply usage:

This product is based on actual production of plating and electroplating additive manufacturers to research and develop, which is especially for portable, used for production site Hull tank test plate and tank solution failure analysis.

Portable plating experimental power supply features:

Portable plating experimental power supply has features of small volume, portable, simple operation, digital display, etc.; therefore has been widely used to study the impact of solution main component and additives, to find out the cause of solution failure and so on. That is an essential laboratory test equipment for electroplating technician and plating additive manufacturers home coating solution maintenance, monitoring, modification and analysis.

Portable plating experimental power supply technical parameters:

Input voltage: 220V±10%(AC),50~60Hz;

Output DC voltage: 0-12V,0-15V(DC) (Two options);

Output DC current: 0-10A,0-20A(DC) (Two options);

Measurement timing range: 99 hours 99 minutes 99 seconds;

Input power: 30w~330w;

Dimensions: 250mm×210mm×120mm (including foot pad and terinmals);

Main functions: 1, stepless adjustment; 2, digital voltage and current; 3, digital timer; 4, constant voltage/constant current;

5, timing alarm function; 6, air agitation; 7, tank heating; 8, soft start; 9, protection for current limiting, over-current, short circuit.

Ways of improving electrolyte solution dispersion and coverage capability

1, Cathodic polarization electroplating:

For the electrolytic solution which the cathode polarization is small, should strive to increase the cathodic polarization factors. Directly or indirectly contribute to increase cathodic polarization factors, such as selecting the appropriate complexing agent and additives, both can change coating film dispersion and coverage capability.

2, Electrolyte solution conductivity:

On large resistance electrolytic solution, a stronger conductivity electrolyte may be appropriate to add. When the electroplating solution has a larger cathodic polarization, to enhance conductivity can significantly improve dispersion and coverage capability. If the polarization dispersion is minimal, so the impact to dispersion capability is not big.

3, Cathode current efficiency:

Improving cathode current efficiency, can increase plating solution capacity of dispersion and coverage.

4, Organism surface condition:

To improve organism surface smoothness, to use a short shock waves, to increase hydrogen overpotential on organism, can eliminate organism side effects to dispersion and capacity.

5, Geometric factors:

Using auxiliary cathode and pictograph anode in actual production, and using methods: such as rationally regulate distance between the anode and cathode as far as possible to elimination geometric factors impact to electrolyte dispersion capability. But chrome electrolytic solution is special, which is a strong oxidizing acid electrolytic solution, and is a worst dispersion capability in using electrolytic solution. When in chromium plating, in order to improve the dispersion ability, often from the outside perspective of electrochemistry properties, make the using of protective cathode, auxiliary anode and nonmetal shield and reasonable to adjust distance between the electrodes and so on, to make it in the best current distribution.

Electrolyte soulution

Electrolyte solution

Factors impact electroplating solution dispersion and coverage capability

Factors impact electroplating solution dispersion and coverage capability:

The advantages and disadvantages of plating solution indicated by dispersion and coverage capability. Dispersion capacity refers solution has capability of uniform distribution in coating thickness, which only shows uniformity coefficient on the surface of plating workpiece. Coverage refers the electroplating solution has capacity of depositing coating film on parts deep hole, concavity surface, also called depth capability. Only stated plating surface concavity surface or deep hole whether has coating deposition or not.

1, Current distribution: When the current through the electrolyte solution, the amount of material deposited on the cathode in direct proportion to the electric quanlity through. Greater current density, the coating film is also the more thicker. Metal deposition on the cathode surface depends on the distribution of electricity in cathode. The electrolyte solution resistance and cathode electrochemical reaction resistance, are two important factors which impact the current distribution in cathode, and one of them play a dominant role.
2, Current efficiency: coating film metal distribution depends on the current distribution, but it does not mean equal to current distribution. Through primary current not only consumed metal ion deposition, but also consumed in hydrogen and other side effects. Current efficiency changes with current density changing.

Affect the distribution of the metal in different parts :
A. Cathode current efficiency with current density change almost no change . Different parts of the cathode plating metal depends directly on how much the size of the current.
B. Cathode current efficiency with the increasing of current density but decrease to improve the dispersion capacity. Where the current density high the low current efficiency, while the low current density the high current efficiency. To make the current density distribution uniform, have to change the dispersion capability of the electrolyte solution.
C. The surface state of organism:
Metal hardly deposited on the unclean cathode surface a uniform coating, or even can not deposite. Since hydrogn overpotential on rough surface less than on smooth surface, then on rough surface the hydrogen is easily to precipitate, so it is difficult to deposit coating film.
D. Cathode current efficiency with the increasing to increase will reduce dispersion capacity. Because of the electrical efficiency is high when the cathode current density high, but the current density low when current low, so the actual current density throughout more uneven, resulting in poor dispersibility .
E. Geometric factors:
Plating tank geometry shape, the shape of the anode and cathode, the two electrodes in the plating tank etc.. geometric arrangement factors can directly affect the distribution of coating .
Explain: All these related with the electrolyte solution dispersion and coverage capability, are not isolated from each other, but actual contacted each other.Factors impact electroplating solution dispersion and coverage capability

Factors of impacting plating crystal

Crystal nucleus generation speed is fast, while the crystal nucleus growth rate is slow, then resulting large number of crystal nucleus, and resulting the crystal nucleus small, conversely is bigger. If the generation rate of crystal nucleus is faster than growth rate, coating file crystallition will be more micromesh and tightening. Cathodic polarization of increasing electrocrystallization can accelerate the growth rate of growth speed of crystal nucleus, then easy to form smaller crystals.

1. The cathode polarization method improving metal electrical crystallization:

Enhancing the cathodic current density: generally, the cathode polarization will increase with cathode current density increasing, while the coating film become more delicate at the same time. Under the circumstance of polarization increase with cathode current density increasing, the appropriate way to improve the current density will increase cathodic polarization.

2. To lower electrolyte solution temperature properly :

Lowering the temperature can slow down the cathodic reaction speed or ion diffusion rate and improve the cathodic polarization. In actual operation, for the negative impact of increasing the temperature can get up by increasing current density. The specific production operation, in the according to the actual temperature to adjust the electrolyte solution.

3. Add complexing agent:

Complexing agent is a substance which can complex metal ions in electroplating process. Complex ion is relatively simple ion on the cathode which difficult to restore, thereby increasing cathodic polarization value.

4. Add additives:

Additives adsorped on the surface of the electrode preventing the precipitation of metal, increasing the cathodic polarization.Cathodic polarization effect is not alwarys the bigger the better, when polarization over a certain range, will lead to a large number of hydrogen precipitation, so that the plating film becomes porous and rough. In production process, the situation is more practical, to take specify measures to increase metal crystallization cathode polarization effect.

Factors of impacting plating crystal

Factors of impacting plating crystal

Factors of impacting platin crstal