Solid state high frequency welder is mainly applied to high frequency straight seam tube mill line. The solid-state H.F welder allows the welding process to have no splashing with quality-controlled welding line. The welding process is controlled by PLC diagnosis system and is able to be monitored through display screen.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.
| Power | 60 kw to 1200 kw |
| Frequency | 200 KHZ to 600 KHZ |
| Efficiency | > 85% |
| Operating temperature | -5° CTO -50°C |
| Application | steel tube wall thickness 0.2-22mm |
| Welding seam | High Quality & Stable |
Designed with simple electrical circuit, the solid state high frequency welder is easy to install. With complete protection, it is easy to maintain.
It produces very little noise and less pollution to an electric network.
Without high pressure, the welder is safe to use.
The welding equipment achieves a maximum efficiency of more than 85%. Circulating water is used in production to cool down, save energy, protect environment and save labor.
High reliability and stable operation,good welding seam condition, less burr, fast speed.
Easy to maintain, users can repair it on their own.
With necessary equipment, the welder is able to be used at the rated power.
The control apparatus are universal and require no adjustment.