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integrated solid state hf induction welder The new generation HF welder adopts PWM chop-wave technology and DPLL inverter control technology .DC Chopper is used to cut the power supply voltage properly to achieve the voltage change of the teminal load.
integrated solid state hf induction welder take induction heating as heating method , water cooling system. All in one design could save much room and much
more efficient compared with traditional hf welder .
Product Name: integrated solid state hf induction welder
Application : Used for ERW tube mill welding of round pipe , square tube and rectangulare pipes .
Advantages of solid state integrated HF tube welder
1. High Efficiency Compared to traditional tube/ pipe solid state induction welding equipment, save power up to 15%~25%
2. Less Area Covered Saving 35% area than traditional solid state welder
3. Esay Installation Comparing to 5-7 days for traditional welder installation, integrated HF welder installation is only 1 day.
4. Less Installation Cost Take 100kw HF welder for example, the traditional installation cost is around USD700 (purchasing cable, nozzles,
cable bridge and brackets), moreover, welder room or elevated platform is necessary, all cost will be about USD700-USD1000 .
5. Welding Quality Benefitted from PWM precise control voltage and three level of filtering, the output voltage is stable, ripple coefficient is 50% lower than
traditional welder. The welding quality is obviously better than tradtional solid state welder.
Comparison for two generation solid state high frequency welder
Comparison parameter |
Traditional HF welder |
Integrated HF Solid State Welder |
Controlled components |
SCR |
IGBT |
Frequency |
50Hz |
5-14KHz |
Control mode |
Phase shift trigger |
PWM modulation |
Input filtering |
Without |
L |
Output filtering |
L,C |
LC |
Output DC |
Half wave |
High density DC square wave |
|
Voltage regulation precision |
||
|
Current regulation precision |
||
Cooling mode |
Water cooling |
Water cooling |
Efficiency AC-DC |
0.97 |
|
Power factor |
It changes from 0 to 0.90. |
≥97% |
Control circuit |
Complex, there are synchronous requirement, not easy integration |
Simple, special control board, fully enclosed |
Volume |
Large volume, structure scattered, heavy weight |
Small volume, compact structure, light Weight |
|
The interference to power grid |
large, difficult to eliminate |
Small, easy to eliminate |
Regulator speed |
Slower (ms) |
Very fast (μs) |
Energy saving effect |
Better |
More better |
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