60～1800kW Solid State High Frequency Welder
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- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 unit
- Supply Capability:
- 5 unit/month
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Application Scope
The welding of steel tube, stainless steel tube, aluminum tube, copper tube, H-beam and special section tube.
Function Structure
Solid state high frequency welder is mainly applied to high frequency straight seam tube mill line. The high frequency power supply adopts AC-DC-AC frequency-variable structure. The rectifier adopts 3-phase 6-pulse thyristor rectifying, IGBT DC chopping or 3-phase 12-pulse thyristor rectifying. Inverter adopts high voltage large power MOSFET to form full bridge resonant inverter. Inverter output adopts high efficiency ferrite matching transformer to accomplish power synthesis, impedance matching and electric isolation. Resonant tank circuit adopts secondary side series resonance.
The whole set equipment is composed of switchgear rectifying cabinet, inverter output cabinet, circulation soft water cooling system, console and positioning table.
Perfect structure design
1. Independent design of switchgear rectifying cabinet and inverter output cabinet, connected by soft cable, which is convenient for layout at user’s site.
2.Rectifier selects DC chopping to ensure grid side power coefficient≥0.92 and harmonic content is the relative lowest. Adopt 12pulse thyristor rectifying to eliminate grid side fifth and seventh harmonic, and grid side harmonic current is the lowest.
3.Power combination of the inverter bridge is accomplished by the way of power unit superposition. Each MOSFET power unit is designed to be 50kW/100kW/150kW and slideway drawer structure, which is convenient for installation and repair.
4.High standard electromagnetism compatibility design, electromagnetism radiation meets national standard.
5.High standard electromagnetism compatibility design, electromagnetism radiation meets national standard.
All-digital control system
1.3-D rectifier adopts high cost performance MCU controlling to realize precise synchronism trigger with high control precision and small grid-side non characteristic harmonic.
2. Resonant inverter adopts CPLD to form full-digital control system that is characterized by their automatic constant angle, high phase-lock precise and wide scope of phase-lock.
3.The welder has electronic automatic load matching function with good load adaptability, high electrical efficiency and high power coefficient.
4.The welder has perfect protection function with reliable working and low failure rate.
HMI and fault diagnosis system
1.Adopt PLC and touch screen to form perfect HMI system.
2.Realize integrated automatic control of welder system.
3.Fault display and diagnosis system.
Main Technical Parameter
| model | AC input | Rated DC voltage | Rated DC current | Frequenyscope | Electrical efficiency | Working status |
| GGP60-0.8-H | 3AC380V 50/60Hz | 450V | 130A | 650~ 800 kHz | ≥85% | continuous |
| GGP100-0.45-H | 3AC380V 50/60Hz | 450V | 220A | 400~ 450 kHz | ≥85% | continuous |
| GGP150-0.4-H | 3AC380V 50/60Hz | 450V | 330A | 350~ 400 kHz | ≥85% | continuous |
| GGP200-0.35-H | 3AC380V 50/60Hz | 450V | 440A | 300~ 350 kHz | ≥85% | continuous |
| GGP250-0.3-H | 3AC380V 50/60Hz | 450V | 550A | 250~ 300 kHz | ≥85% | continuous |
| GGP300-0.3-H | 3AC380V 50/60Hz | 450V | 660A | 250~ 300 kHz | ≥85% | continuous |
| GGP400-0.3-H | 3AC380V 50/60Hz | 450V | 880A | 250~ 300 kHz | ≥85% | continuous |
| GGP500-0.2-H | 3AC380V 50/60Hz | 450V | 1100A | 150~ 200 kHz | ≥85% | continuous |
| GGP600-0.2H | 3AC380V 50/60Hz | 450V | 1300A | 150~ 200 kHz | ≥85% | continuous |
| GGP700-0.2-H | 3AC380V 50/60Hz | 450V | 1500A | 150~ 200 kHz | ≥85% | continuous |
| GGP800-0.2-H | 3AC380V 50/60Hz | 450V | 1800A | 150~ 200 kHz | ≥85% | continuous |
| GGP1000-0.2-H | 3AC380V 50/60Hz | 450V | 2200A | 150~ 200 kHz | ≥85% | continuous |
| GGP1200-0.2-H | 3AC380V 50/60Hz | 450V | 2700A | 150~ 200 kHz | ≥85% | continuous |
| GGP1400-0.15-H | 3AC380V 50/60Hz | 450V | 3100A | 100~ 150 kHz | ≥85% | continuous |
| GGP1600-0.15H | 3AC380V 50/60Hz | 450V | 3600A | 100~ 150 kHz | ≥85% | continuous |
| GGP1800-0.15-H | 3AC380V 50/60Hz | 450V | 4000A | 100~ 150 kHz | ≥85% | continuous |
Conventional design. Can be customized according to user’s grid, technics requirement and working frequency.
equipment selection
| model | tube specification | shape | Welding speed | Welding mode | Cooling mode | remarks |
| GGP60-0.8-H | O.D.：φ6~φ20mm wall thickness ：0.15~0.5mm | Round tube Rectangular tube Special section tube | 60~ 100m/min | Induction welding | Water-water Air-water | Steel pipe Copper pipe Aluminum pipe Stainless steel |
| GGP100-0.45-H | O.D.：φ16~φ45mm wall thickness：0.6~1.5mm | Round tube Rectangular tube Special section tube | 60~ 100m/min | Induction welding | Water-water Air-water | Steel pipe Aluminum pipe Stainless steel |
| GGP150-0.4-H | O.D.：φ20~φ60mm wall thickness：0.8~2.0mm | Round tube Rectangular tube Special section tube | 60~ 100m/min | Induction welding | Water-water Air-water | Steel pipe Aluminum pipe |
| GGP200-0.35-H | O.D.：φ45~φ76mm wall thickness：1.5~3.25mm | Round tube Rectangular tube Special section tube | 60~ 100m/min | Induction welding | Water-water Air-water | steel pipe |
| GGP250-0.3-H | O.D.：φ45~φ89mm wall thickness：1.5~4.0mm | Round tube Rectangular tube Special section tube | 60~ 100m/min | Induction welding | Water-water Air-water | steel pipe |
| GGP300-0.3-H | O.D.：φ50~φ114mm square pipe：200×200mm wall thickness：2.5~5.0mm | Round tube Rectangular tube Special section tube | Induction welding: ≥40m/min contact welding≥50m/min | Induction welding contact welding | Water-water Air-water | steel pipe |
| GGP400-0.3-H | O.D.：φ114~φ156mm square pipe：200×200mm wall thickness：4.0~8.0mm | Round tube Rectangular tube Special section tube | Induction welding:≥25m/min contact welding≥30m/min | Induction welding contact welding | Water-water Air-water | steel pipe |
| GGP500-0.2-H | O.D.：φ165~φ219mm square pipe：200×200mm~300×300mm wall thickness：4.0~12.0mm | Round tube Rectangular tube Special section tube | Induction welding： ≥ 14m/min contact welding： ≥ 18m/min | Induction welding contact welding | Water-water Air-water | steel pipe |
| GGP600-0.2-H | O.D.：φ219~φ273mm square pipe：200×200mm~300×300mm wall thickness：6.0~12.0mm | Round tube Rectangular tube Special section tube | Induction welding： ≥ 15m/min contact welding： ≥ 18m/min | Induction welding contact welding | Water-water Air-water | steel pipe |
| GGP800-0.3-H | O.D.：φ325~φ508mm square pipe：300×300mm~400×400mm wall thickness：6.0~16.0mm | Round tube Rectangular tube Special section tube | Induction welding： ≥ 7m/min contact welding： ≥ 9m/min | Induction welding contact welding | Water-water Air-water | steel pipe |
| GGP1000-0.2-H | O.D.：φ325~φ610mm square pipe：300×300mm~500×500mm wall thickness：4.0~16.0mm | Round tube Square tube rectangular tube | Induction welding： ≥7m/min contact welding： ≥ 9m/min | Induction welding contact welding | Water-water Air-water | steel pipe |
| GGP1200-0.2-H | O.D.：φ325~φ610mm square pipe：300×300mm~500×500mm wall thickness：4.0~16.0mm | Round tube Square tube rectangular tube | Induction welding： ≥8m/min contact welding： ≥ 10m/mi | Induction welding contact welding | Water-water Air-water | steel pipe |
| GGP1400-0.15-H | O.D.：φ325~φ610mm square pipe：300×300mm~500×500mm wall thickness：4.0~16.0mm | Round tube Square tube rectangular tube | Induction welding： ≥10m/min contact welding： ≥ 13m/min | Induction welding contact welding | Water-water Air-water | steel pipe |
| GGP1600-0.15-H | O.D.：φ325~φ610mm square pipe：300×300mm~500×500mm wall thickness：4.0~20.0mm | Round tube Square tube rectangular tube | Induction welding： ≥7m/min contact welding： ≥ 10m/min | Induction welding contact welding | Water-water Air-water | steel pipe |
| GGP1800-0.15-H | O.D.：φ325~φ610mm square pipe ：300×300mm~500×500mmwall thickness：4.0~20.0mm | Round tube Square tube rectangular tube | Induction welding： ≥7m/min contact welding： ≥ 10m/min | Induction welding contact welding | Water-water Air-water | steel pipe |
The welding speed is based on the condition of max O.D. and max wall thickness.
General design, can be designed as per user’s technics.
- Q:What is the influence of the cooling rate after welding on the mechanical properties of the weld?
- When the cooling rate is too high, the welding seam will have a great internal force, which will easily cause deformation and even crack in the weld.
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60～1800kW Solid State High Frequency Welder
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 unit
- Supply Capability:
- 5 unit/month
OKorder Service Pledge
OKorder Financial Service
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