ERW Steel Pipe Soldering Machine Welded Tube Solid State High
Frequency Welder
Product Parameter
| Design parameters of the high - frequency welding machine | Rated output power: | 400/500kW |
| Rated DC voltage: | UdN= 235V |
| Rated DC current: | IDN =1070/1330A |
| Efficiency: | η> 85% |
| Output frequency: | f= 200 - 300kHz |
| Circulation of soft water cooling system | Working water pressure: | 0.32Mpa |
| Working water flow rate: | 25m |
| Heat exchange area: | 12m |
| Composition of the solid - state high - frequency welding machine | Rectifier cabinet | 1 set |
| Inverter cabinet | 1 set |
| Water ex-changer | 1 set |
| Operation panel | 1 set |
| Adjustment mechanism | 1 set |
| Output confluence row | 1 set |
Structure
The whole set of solid state HF welder comprises of rectifying
cabinet, inverter and output cabinet, connecting optical fiber,
closed loop water cooling system, central operator console,
mechanical adjustment device, etc.
Usage
It is used to be a high performance-heating unit controlled by
computer for welding steel pipe.
Product Details
1.Switch Rectifying Cabinet
We integrate the switch gear cabinet part and rectifier part,
besides the functions of switch cabinet, this design also has
rectifying control functions on solid-state H.F. welders.
Install incoming disconnect switch ,incoming current meter, voltage
meter(switchable)and incoming voltage indicating light.
Install 3-phase full-controllable thyristor rectifying bridge to
achieve power regulation of H.F. welders.
Install flat wave reactor, flat wave capacitor and filter to
increase flat wave coefficient.
2. Invert output cabinet
We adopt matching transformer to realize power combination, also we
adopt sub-resonance, no-welding transformer output mode and make
resonance directly by tank resonance capacitor(low voltage)and
inductor to achieve steel pipe welding power transmission by output
lead.
Use sealed box and install overhead air conditioning.
3. Central console
The console achieves remote control and power regulation of
solid-state H.F. welder, installed with LCD; also it has indicators
of armature voltage, field voltage on DC speed regulation cabinet
and indicators of DC voltage, DC current on welder. Installation of
power-speed closed loop control function is optional. The console
has design difference according to different types and quantities
of matching DC speed regulation cabinet.
4. Mechanical adjusting equipment
2-D adjustable bracket: for induction welding mode, applied with
installation and adjustment of invert output cabinet, the inductor
position can be adjusted manually.
3-D adjustable bracket: for induction/contract welding mode,
applied with installation and adjustment of inverter output
cabinet, the inductor position can be adjusted by electric or
manual.
5. Circulation soft water cooling system (water-water cooler)
The water -water cooling system is composed of heat exchanger with
the adoption of the special corrugated structure which makes the
soft water form sharp turbulent flow in order to strengthen heat
exchange. The system holds the advantage of compact design, small
area occupation, convenient dismounting and high efficiency of heat
exchange. Only with the ability of heat exchange but not cooling,
it is necessary to use external circulation system to accomplish
the heat exchange.
Model List
| Welding power (kw) | Pipe OD (mm) | Thickness (mm) | Working Speed (m/min) |
| 100 | 10-50 | 0.3-2.0 | ≤120 |
| 200 | 32-76 | 1.0-3.0 | ≤120 |
| 250 | 32-76 | 1.0-4.0 | ≤120 |
| 300 | 45-114 | 1.5-4.5 | ≤90 |
| 400 | 45-165 | 1.5-4.5 | ≤80 |
| 500 | 76-219 | 2.0-6.5 | ≤80 |
| 600 | 76-273 | 3.0-9.0 | ≤60 |
| 800 | 89-325 | 4.0-12.7 | ≤50 |
| 1000 | 165-610 | 6.0-19.0 | ≤30 |
