SCR rectifier compare HF power supply

SCR rectifier compare HF power supply


In the plating industry application, normally, there are two types of rectifier, which is:

1, Silicon controlled rectifier.
2, High frequency power supply.
While, what is the different between for the 2, sometimes it will cause us confused to choose them.
Here we use a table sheet to find out what exactly difference for them.

For easy to distinguish, we choose same power: 1000A 12V type rectifier. From this, I think you will know which one is what you want.

Comparison dataSCR RectifierHF power supply
TransformerLarge volume, heavy weight, 95kgSmall volume, light weight, 1kg
Control componentsSCRIGBT
Control methodPhase-shifted triggerPWM modulation
Working frequency50Hz20KHz
Ripple ratio<5%<2%
Voltage stabilization<5%<1%
Cooling methodOil/Air coolingAir cooling
Energy savingBadEasily save power 20-40%
Interference of power gridsBig, not easy to eliminateSmall, easy to eliminate
VolumeLarge volume: 900*1010*550mmSmall volume: 520*450*220

SCR rectifier compare HF power supply

Electropating equipment to Pakistan

Our electroplating equipment to Pakistan:




14 7


Electroplating equipment for sale

Electroplating equipment for sale

Electroplating equipment for sale

Electroplating equipment for sale:

Electroplating workshop production process can be carried out in three areas, normally as: Pre-plating surface treatment, Electro plating treatment and After electro plating treatment. Electroplating technical processes equipment generally refers to the machinery directly processing above plating parts.

Pre electroplating equipment for sale:

The main treatment processes of pre-plating surface treatment as following: polishing, brushing, tumbling, sandblasting, degreasing, rusting, anti corrosion, neutralization and cleaning. According to parts and materials, shape, surface conditions and processing requirements, select the appropriate technical steps, do necessary trimming process for electro plating parts, make sure the plating parts have a flat smooth surface, which is the important step to obtain high-quality plating film layer of plating parts. In the pre-plating pretreatment process, the main equipment used are grinding machine, polishing machine, brushing machines, sandblasting machine, tumbling machine and various fixed electro plating baths.

Electroplating equipment for sale:

Electro plating treatment is main process of entire production process. According to the requirements of electro plating parts, targeted select one or a few technical process to electroplating or dipping electro plating, to achieve purpose of anti-corrosion, abrasion and elegant appearance. Electroplating process mainly used equipments are all kinds of fixed tanks, barrel plating tanks, hanging tools, hanging baskets, etc.

After electroplating equipment for sale:

After plating treatment is the works of polishing the parts, lighting, passivation, coloring, drying, sealing, and dehydrogenation, etc., according to the need to use one or several steps to meet the quality requirements. After plating treatment process equipment are grinding machine, polishing machines, various fixed electro plating baths.

Chrome plating equipment for sale

Chrome plating equipment for sale: (Agent wanted)

Chrome plating equipment for sals

Chrome plating equipment for sale

Note: The electroplating technical processes may be different from customers to customers based on different different surface requirements and environmental conditions, please select the most suitable solution based your requirement.

1, Iron chrome plating equipment process:

Wax removal→Hot dip degreasing →Cathode→Electrolytic degreasing→Weak acid etching→Pre-plating alkaline copper→Acidic bright copper (Select) →Brightness nickel plating→Chrome electro plating or other;

Wax removal→Hot dip degreasing →Cathode→Electrolytic degreasing→Weak acid etching→Semi-bright nickel plating→High sulfur nickel electroplating→Brightness nickel plating→Nickel sealing→Chrome electro plating or other;

2, Zinc alloy chrome plating process:

Wax removal→Hot-dip degreasing→Cathode electrolysis degreasing →Pickling → → Bright copper pyrophosphate (optional) → Bright Acid Copper (optional)→Bright nickel plating→chrome electroplating;

3, Stainless steel direct chromium plating process:

1) Electrochemical degreasing→Hot water rinse→Cold water rinse→Immersion acid activation (1ml/L HCL, 10ml/L H2SO4, room temperature,half a minute; suitable for automatic on-line stainless steel chrome plating, not suitable for copper or nickel)→Water washing→Chrome electro plating.

2) Cathode electrochemical degreasing→Washing→Activation (10A/dm2)→Direct chrome plating.

3) Chemical degreasing→Washing→Anode electrochemical degreasing (0.5A/dm2)→Washing→Pickling activation (1ml/L HCL, 10ml/L H2SO4, room temperature, 45S)→Washing → Chrome plating.

Note: When chrome plating, should use of 1.5 to 2 times of normal plating current density to plate 3 to 5 minutes, then plating as normal current density, to minimize the residence time of the transition between the various processes caused.

Thank you for your interest in our chrome plating equipment, if you want to get a better understanding, such as chrome plating equipment prices, chrome plating equipment for sale, chrome equipment specification model and more information, please feel free to contact us, we will provide the best service!

Hard chrome plating equipment

Hard chrome plating equipment technical process:

Hard chrome plating equipment

Hard chrome plating equipment

A.Introduction of hard chrome plating equipment technical process:

Hard chrome plating equipment used for plating a layer of thick chrome film on various kinds of base material, which its thickness normally above 20μm, by mean of this, to make use of chromium character to improve plating parts hardness, wear resistance, thermostability, anti-corrosion performance.

Hard chrome plating equipment technical features:
1)Cathode current efficiency up to 50%~65%, deposition speed very fast;
2)High hardness plating layer (900~1200 HV), present uniform and intensive net-type fissure, the wear resistance performance is very good;
3)Plating solution disperse capacity good, plating film layer uniform, and not easy to have rough tumour phenomenon, the appearance of chrome layer bright and smooth;
4)Bonding force between chrome plating layer and base material very strong, while pre-plating treatment processes is similar with traditional electroplating technical processes, but operation simple than traditional one;
5)Allowed range of trivalent chromium content is more wide, normally, there is no need to stop production to deal with trivalent chromium;
6)There is no fluoride, no rare earth element in electro plating solution, and no low current area corrosion to plating parts.

Hard chrome plating equipment has a widely application, such as: mechanical mould, cylinder piston, measure tools, cutting and pulling tools etc.. Its another usage is to repair wear down parts and over cutting parts, to make these parts can be used repeat.

B. Hard chrome plating equipment flow:

Examine→Degreaing→Water rinse→Antipole→hard chrome plating→Water rinse→Examine

C. Hard chrome electroplating equipment technical parameter:

1, CrO3: 220~250g/l;
2, SO42-: 2.2~2.5g/l;
3, Cr3+: 2~5g/l;
4, Plating solution temp: 50~55℃;
5, Cathode current density: 30~60A/dm2.

D. Hard chrome plating equipment operation regulations:

1, Examine plating parts size before plating, machining surface conditions, to calculate electro plating time according to electroplating layer thickness.
2, Control well for plating solution working condition, observe frequently, watch temperature changing, plating solution liquid level changing, operation carefully, and fill in the operation record. Add chemical solution according to testing result, correction the electroplating solution.
3, After plating to check plating layer quality, dimensions, and clean up.
4, The working site shall be cleaned and cleared, tools and devices shall be placed properly.