GGP250KW solid state HF steel tube welder
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- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
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- Supply Capability:
- 30 sets set/month
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1. Applied Range
Steel pipe specification: φ45~φ89mm
Steel pipe thickness: 1.5~4.0mm
Welding pipe type: Round pipe/square pipe/rectangular pipe
Welding mode: Induction welding
Typical welding speed: 30~100m/min
2. Main Technical Index of 250kW Solid State H.F. Welder
( 1 )Designed parameters
Nominal power: 250kW
Rated DC power: Pd=300kW
Rated DC voltage: UdN=450V
Rated DC current: IdN=670A
The whole efficiency: η≥85%
Output power: Pout > 250kW
Designed frequency: f=300~350kHz
MOSFET inverter: 60kW×5
Tank circuit output mode: no welding transformer output, secondary resonance
( 3 ) Power distribution requirements
Nominal power: 250kW
Rated DC power: Pd=300kW
Line-in power factor: COSφ≥0.85
Power distribution capacity: S≤350kVA
Power supply voltage: 3-phase 380V/50Hz
Line-in current: I=540A
Line-in cable: each phase adopts 240mm2 copper cable, 3-phase 4-line
(3 ) 250kW:
With the adoption of water-water heat exchanger
Pressure of inner circulation water: 0.15~0.25MPa
Flow of inner circulation water: 21m3/h
Temperature of inner circulation out water: ≤40°C
Temperature of inner circulation back water: ≤55°C
Heat exchanger area: 12m2
Flow of external circulation water: 25m3/h(provided by user)
Temperature of external circulation inlet water: ≤35°C
Temperature rise of heat exchanger external circulation water: ≤15°C
Pressure of inlet water: 0.25~0.3MPa (approximately 2.5~3kg/cm2)
Volume for external circulation water pool: ≥25m3(provided by user)
- Q: What are the characteristics of constant voltage operation mode of medium frequency resistance welding machine?
- Advantages of intermediate frequency resistance welding machine:The power factor is extremely high (above 0.95), and the required power supply is saved by half compared with the AC resistance welder, and the three-phase balance of the power network is not influenced.Because of the direct current bunching effect and no zero crossing effect, the welding efficiency is improved and the required current is smaller. Therefore, the required cooling water is less, and the spatter is reduced, so that the electrode grinding cycle is lengthened correspondingly.If a transformer power frequency transformer size and weight can be reduced to one - to 1/3.The secondary loop is not affected by the ferromagnetism of the workpiece.There is no alternating electromagnetic force in the DC operation, so the electrode pressure is less.
- Q: Comparison between medium frequency spot welder and common resistance welder
- Welding faces the challenge of high strength steel plates.Welding process of galvanized steel sheet and multilayer steel plate.Application of aluminum alloy sheet material.The widespread use of automatic flexible production line for welding robot.Continuously reduce energy costs, quality costs, and maintenance costs.
- Q: What is the working principle of the suspension type resistance welding machine?
- The spot welding, the workpiece is located between the electrode holder first, and then press the welding switch, "start pressure" program, the electromagnetic valve action, compressed air into the cylinder so that the electrode holder welding, the workpiece clamping action, after appropriate delay, "start welding procedures" at this time, the primary coil of the transformer through the control and power supply connect the SCR welding welding current, secondary
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GGP250KW solid state HF steel tube welder
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- 30 sets set/month
OKorder Service Pledge
OKorder Financial Service
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